up to latest (#2984)

* Initial commit and pr for HackRF Pro (praline) arch-port to mayhem-firmware. Please see https://github.com/portapack-mayhem/mayhem-firmware/issues/2957. Added flash specifics for -DBOARD=PRALINE. This firmware only builds with toolchain v9.2.1 if hackrf codebase has -B arm in firmware/hackrf_usb/CMakeLists.txt.

* Updated CMakeLists.txt per coordination with @HtoToo. For -DBOARD=PRALINE FLASH_MB_SIZE and FLASH_MB_LIMIT_SIZE are now 4. Removed praline specific variable for FLASH limits.

* Updated chibios-portapack's board.cpp to support initialization of the HachRF-Pro (praline) FPGA. Added append_fpga_bitstream.py tool to ensure that praline_fgpa.bin bitstream can be appended to -DBOARD=PRALINE produced firmware. In order to ensure successful execution of append_fpga_bitstream.py to append the fpga bitstream we should expect that the bistsream will be located at 0x180000 in flash. This requires that FLASH_MB_LIMIT_SIZE must be 1.5, and FLASH_BYTES_LIMIT_SIZE must be 1535 * 1024. If we want to allow more or less space for the base firmware image sans the fpga bitstream the location of the bistream must be moved to a location other than 0x180000.

* Updated location of praline_fpga.bin bitstream to 0x380000 to allow more room for firmware. Firmware now has 3.5MB, or 2MB more available than before as coordinated with @HTotoo.

* Expanded #ifndef PRALINE to include og and r9 gpio and pin setup as coordinated with @HTotoo.

* Added note for PRALINE FLASH_MB_LIMIT_SIZE and FLASH_BYTES_LIMIT_SIZE to explain why we are using the 3.5 and 3584 values respectively as coordinated with @HTotoo.

* Next round of modifications derived heavily, if not entirely  from work done by @banandana at https://github.com/Banandana/mayhem-firmware. This commit should power on the HackRF Pro (praline) display, power on the fpga, and enable gpio, and provide debug utilties. There is still a lot of work to be done to fully enable the new praline board with this build and firmware architectural porting effort. However, hackrf-one boards do not seem to be adversely impacted by the #ifdef PRALINE statements, and CMakeLists updates, as far as I have been able to test.

* Ran format-code.sh. Updates for this commit are only due to formatting. Tested builds and they seem to work as exptected.

* Addressed fixes in firmware/application and firmware/baseband. Stream now flows to capture and looking glass. Issues were related to thread management. Issues were originally addressed by @banandana.

* Ran format-code.sh to allow for consistency with autoamted clang checks.

* Update hackrf ref repo to mayhem-portapack-hackrf next from https://github.com/portapack-mayhem/hackrf

* Addressed format edits necessary to pass clang-format check.

* Starting addressing Si5351 Clocks for radio sampling. These updates correctly set the Si5351 clock at start up. There appears to be an issue during runtime when testing with RX Test Init, Capture and Looking glass.

* Updated clock_manager.cpp to restore correct function introduced by @banandana when testing with Rx Test Init.

* Switched to using decimation for setting the sample rate without changing the Si5351 clock. This assumes that for the praline board Si5351 CLK0 runs at fixed 8 MHz (constant) and the FPGA decimates to get the desired sample rate. For example, for a 1 MHz sample rate -> Si5351 outputs 8 MHz, FPGA decimates by 8. There is still more work needed here, and potential verification that this is the correct way to operate with this new archteitecture.

* After deliberating on hackrf_usb hackrf_core.c and radio.c, and reviewing firmware/application/hw/si5351.cpp the original approach of using the aproach detailed in hackrf_core.c sample_rate_frac_set() lines 580-582, via the implementation in firmware/application/hw/si5351.cpp seems like the best place to continue testing efforts.

* Tested at ~2.4GHz (2.3 - 2.5) with lookgin glass and was able to receive signals. Added a Signal Path debug app to test gains, and readio mode (receive/transmit).

* Added two debug apps for the RFFC507x. Status View and Tuning View. This helped debug some of the potential issues with tuning.

* update submodule

* format code

* Small touch up merging latest next and ensuring build for HackRF One.

* Reverted edits to re: firmware/baseband/sd_over_usb/scsi.c and firmware/application/portapack.cpp. Source now builds, had to pull latest hackrf submodule.

* Skipped detect hardware for praline board to avoid backscreen in HackRF Pro praline board.

---------

Co-authored-by: gullradriel <gullradriel@users.noreply.github.com>

.clang-format

@@ -1,14 +1,13 @@
 ---
 BasedOnStyle: Chromium
-IndentWidth: '4'
-SortIncludes: 'false'
-AllowAllArgumentsOnNextLine: 'true'
+IndentWidth: 4
+SortIncludes: false
+AllowAllArgumentsOnNextLine: true
 ColumnLimit: 0
-Cpp11BracedListStyle: 'true'
-AllowShortLoopsOnASingleLine: 'true'
-AllowShortIfStatementsOnASingleLine: 'true'
+Cpp11BracedListStyle: true
+AllowShortLoopsOnASingleLine: true
+AllowShortIfStatementsOnASingleLine: true
 SpacesInLineCommentPrefix:
   Minimum: 1
   Maximum: 1
-
 ...

.github/workflows/check_formatting.yml

@@ -19,5 +19,6 @@ jobs:
       - name: clang-format Check
         uses: jidicula/clang-format-action@v4.11.0
         with:
+          clang-format-version: '18'
           check-path: ${{ matrix.path }}
           fallback-style: Chromium

.github/workflows/create_nightly_release.yml

@@ -3,7 +3,7 @@ name: Nightly Release
 on:
   schedule:
     - cron: "0 0 * * *"
-    
+
   workflow_dispatch:
 
 jobs:
@@ -21,27 +21,36 @@ jobs:
         id: should_run
         continue-on-error: true
         run: test -z $(git rev-list  --after="24 hours" ${{ github.sha }}) && echo "should_run=false" >> $GITHUB_OUTPUT
+
   build:
     needs: check_date
     if: ${{ needs.check_date.outputs.should_run != 'false' }}
     runs-on: ubuntu-latest
+    name: build (${{ matrix.device_name }})
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - device: default
+            device_name: HackRF
+            cmake_args: ""
+            artifact_suffix: "_hackrf"
+          - device: portarf
+            device_name: PortaRF
+            cmake_args: "-DFLASH_MB_SIZE=2 -DFLASH_MB_LIMIT_SIZE=2"
+            artifact_suffix: "_portarf"
+          - device: hpro
+            device_name: HackRF Pro
+            cmake_args: "-DBOARD=PRALINE"
+            artifact_suffix: "_hpro"
     steps:
-      - name: Get current date
-        id: date
-        run: echo "date=$(date +'%Y-%m-%d')" >> $GITHUB_OUTPUT
       - name: Get version date
         id: version_date
         run: echo "date=n_$(date +'%y%m%d')" >> $GITHUB_OUTPUT
-      - name: Checkout 
+      - name: Checkout
         uses: actions/checkout@master
         with:
           fetch-depth: 0
-          #ref: next
-          # The branch, tag or SHA to checkout. When checking out the repository that
-          # triggered a workflow, this defaults to the reference or SHA for that event.
-          # Otherwise, uses the default branch.
-          # https://github.com/actions/checkout
-          # So scheduled runs will use the default branch (next) but its now possible to trigger a workflow from another branch
           submodules: true
       - name: Git Sumbodule Update
         run: |
@@ -51,10 +60,10 @@ jobs:
       - name: Make build folder
         run: mkdir ${{ github.workspace }}/build
       - name: Run the Docker image
-        run: docker run -e VERSION_STRING=${{ steps.version_date.outputs.date }} -i -v ${{ github.workspace }}:/havoc portapack-dev
+        run: docker run -e VERSION_STRING=${{ steps.version_date.outputs.date }} -i -v ${{ github.workspace }}:/havoc portapack-dev ${{ matrix.cmake_args }}
       - name: Create Small SD Card ZIP - No World Map
         run: |
-          mkdir -p sdcard/FIRMWARE && cp build/firmware/portapack-mayhem-firmware.bin sdcard/FIRMWARE/portapack-mayhem_${{ steps.version_date.outputs.date }}.bin && cp build/firmware/portapack-mayhem_OCI.ppfw.tar sdcard/FIRMWARE/mayhem_nightly_${{ steps.version_date.outputs.date }}_OCI.ppfw.tar && mkdir -p sdcard/APPS && cp build/firmware/application/*.ppma sdcard/APPS && cp build/firmware/standalone/*/*.ppmp sdcard/APPS && cd sdcard && zip -r ../sdcard-no-map.zip . && cd ..
+          mkdir -p sdcard/FIRMWARE && cp build/firmware/portapack-mayhem-firmware.bin sdcard/FIRMWARE/portapack-mayhem_${{ steps.version_date.outputs.date }}.bin && cp build/firmware/portapack-mayhem_OCI.ppfw.tar sdcard/FIRMWARE/mayhem_nightly_${{ steps.version_date.outputs.date }}${{ matrix.artifact_suffix }}_OCI.ppfw.tar && mkdir -p sdcard/APPS && cp build/firmware/application/*.ppma sdcard/APPS && cp build/firmware/standalone/*/*.ppmp sdcard/APPS && cd sdcard && zip -r ../sdcard-no-map.zip . && cd ..
       - name: Download world map
         run: |
           wget https://github.com/portapack-mayhem/mayhem-firmware/releases/download/world_map/world_map.zip
@@ -69,7 +78,47 @@ jobs:
           zip -j firmware.zip build/firmware/portapack-mayhem-firmware.bin && cd flashing && zip -r ../firmware.zip *
       - name: Create SD Card ZIP
         run: |
-          mkdir -p sdcard/FIRMWARE && cp build/firmware/portapack-mayhem-firmware.bin sdcard/FIRMWARE/portapack-mayhem_${{ steps.version_date.outputs.date }}.bin && cp build/firmware/portapack-mayhem_OCI.ppfw.tar sdcard/FIRMWARE/mayhem_nightly_${{ steps.version_date.outputs.date }}_OCI.ppfw.tar && mkdir -p sdcard/APPS && cp build/firmware/application/*.ppma sdcard/APPS && cp build/firmware/standalone/*/*.ppmp sdcard/APPS && cd sdcard && zip -r ../sdcard.zip . && cd ..
+          mkdir -p sdcard/FIRMWARE && cp build/firmware/portapack-mayhem-firmware.bin sdcard/FIRMWARE/portapack-mayhem_${{ steps.version_date.outputs.date }}.bin && cp build/firmware/portapack-mayhem_OCI.ppfw.tar sdcard/FIRMWARE/mayhem_nightly_${{ steps.version_date.outputs.date }}${{ matrix.artifact_suffix }}_OCI.ppfw.tar && mkdir -p sdcard/APPS && cp build/firmware/application/*.ppma sdcard/APPS && cp build/firmware/standalone/*/*.ppmp sdcard/APPS && cd sdcard && zip -r ../sdcard.zip . && cd ..
+      - name: Upload firmware zip artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: firmware-${{ matrix.device }}
+          path: ./firmware.zip
+      - name: Upload SD card artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: sdcard-${{ matrix.device }}
+          path: ./sdcard.zip
+      - name: Upload SD card no-map artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: sdcard-no-map-${{ matrix.device }}
+          path: ./sdcard-no-map.zip
+      - name: Upload OCI tar artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: oci-tar-${{ matrix.device }}
+          path: build/firmware/portapack-mayhem_OCI.ppfw.tar
+
+  release:
+    needs: build
+    runs-on: ubuntu-latest
+    steps:
+      - name: Get current date
+        id: date
+        run: echo "date=$(date +'%Y-%m-%d')" >> $GITHUB_OUTPUT
+      - name: Get version date
+        id: version_date
+        run: echo "date=n_$(date +'%y%m%d')" >> $GITHUB_OUTPUT
+      - name: Checkout
+        uses: actions/checkout@master
+        with:
+          fetch-depth: 0
+          submodules: true
+      - name: Download all artifacts
+        uses: actions/download-artifact@v4
+        with:
+          path: artifacts
       - name: Create changelog
         env:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
@@ -96,43 +145,114 @@ jobs:
             ${{ steps.changelog.outputs.content }}
           draft: false
           prerelease: true
-      - name: Upload Firmware TAR Asset
-        id: upload-firmware-tar-asset 
+      # Default device assets
+      - name: Upload Default Firmware TAR Asset
         uses: actions/upload-release-asset@v1
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         with:
           upload_url: ${{ steps.create_release.outputs.upload_url }}
-          asset_path: build/firmware/portapack-mayhem_OCI.ppfw.tar
-          asset_name: mayhem_nightly_${{ steps.version_date.outputs.date }}_OCI.ppfw.tar
+          asset_path: artifacts/oci-tar-default/portapack-mayhem_OCI.ppfw.tar
+          asset_name: OCI_hackrf_mayhem_nightly_${{ steps.version_date.outputs.date }}.ppfw.tar
           asset_content_type: application/x-tar
-      - name: Upload Firmware Asset
-        id: upload-firmware-asset 
+      - name: Upload Default Firmware Asset
         uses: actions/upload-release-asset@v1
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         with:
           upload_url: ${{ steps.create_release.outputs.upload_url }}
-          asset_path: ./firmware.zip
-          asset_name: mayhem_nightly_${{ steps.version_date.outputs.date }}_FIRMWARE.zip
+          asset_path: artifacts/firmware-default/firmware.zip
+          asset_name: FIRMWARE_hackrf_mayhem_nightly_${{ steps.version_date.outputs.date }}.zip
           asset_content_type: application/zip
-      - name: Upload SD Card Assets
-        id: upload-sd-card-asset 
+      - name: Upload Default SD Card Asset
         uses: actions/upload-release-asset@v1
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         with:
           upload_url: ${{ steps.create_release.outputs.upload_url }}
-          asset_path: ./sdcard.zip
-          asset_name: mayhem_nightly_${{ steps.version_date.outputs.date }}_COPY_TO_SDCARD.zip
+          asset_path: artifacts/sdcard-default/sdcard.zip
+          asset_name: COPY_TO_SDCARD_hackrf_mayhem_nightly_${{ steps.version_date.outputs.date }}.zip
           asset_content_type: application/zip
-      - name: Upload SD Card Assets - No Map
-        id: upload-sd-card-asset-no-map 
+      - name: Upload Default SD Card Asset - No Map
         uses: actions/upload-release-asset@v1
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         with:
           upload_url: ${{ steps.create_release.outputs.upload_url }}
-          asset_path: ./sdcard-no-map.zip
-          asset_name: mayhem_nightly_${{ steps.version_date.outputs.date }}_COPY_TO_SDCARD-no-world-map.zip
+          asset_path: artifacts/sdcard-no-map-default/sdcard-no-map.zip
+          asset_name: COPY_TO_SDCARD_hackrf_mayhem_nightly_${{ steps.version_date.outputs.date }}-no-world-map.zip
+          asset_content_type: application/zip
+      # PortaRF device assets
+      - name: Upload PortaRF Firmware TAR Asset
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ steps.create_release.outputs.upload_url }}
+          asset_path: artifacts/oci-tar-portarf/portapack-mayhem_OCI.ppfw.tar
+          asset_name: OCI_portarf_mayhem_nightly_${{ steps.version_date.outputs.date }}.ppfw.tar
+          asset_content_type: application/x-tar
+      - name: Upload PortaRF Firmware Asset
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ steps.create_release.outputs.upload_url }}
+          asset_path: artifacts/firmware-portarf/firmware.zip
+          asset_name: FIRMWARE_portarf_mayhem_nightly_${{ steps.version_date.outputs.date }}.zip
+          asset_content_type: application/zip
+      - name: Upload PortaRF SD Card Asset
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ steps.create_release.outputs.upload_url }}
+          asset_path: artifacts/sdcard-portarf/sdcard.zip
+          asset_name: COPY_TO_SDCARD_portarf_mayhem_nightly_${{ steps.version_date.outputs.date }}.zip
+          asset_content_type: application/zip
+      - name: Upload PortaRF SD Card Asset - No Map
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ steps.create_release.outputs.upload_url }}
+          asset_path: artifacts/sdcard-no-map-portarf/sdcard-no-map.zip
+          asset_name: COPY_TO_SDCARD_portarf_mayhem_nightly_${{ steps.version_date.outputs.date }}-no-world-map.zip
+          asset_content_type: application/zip
+      # HPro device assets
+      - name: Upload HPro Firmware TAR Asset
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ steps.create_release.outputs.upload_url }}
+          asset_path: artifacts/oci-tar-hpro/portapack-mayhem_OCI.ppfw.tar
+          asset_name: OCI_hpro_mayhem_nightly_${{ steps.version_date.outputs.date }}.ppfw.tar
+          asset_content_type: application/x-tar
+      - name: Upload HPro Firmware Asset
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ steps.create_release.outputs.upload_url }}
+          asset_path: artifacts/firmware-hpro/firmware.zip
+          asset_name: FIRMWARE_hpro_mayhem_nightly_${{ steps.version_date.outputs.date }}.zip
+          asset_content_type: application/zip
+      - name: Upload HPro SD Card Asset
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ steps.create_release.outputs.upload_url }}
+          asset_path: artifacts/sdcard-hpro/sdcard.zip
+          asset_name: COPY_TO_SDCARD_hpro_mayhem_nightly_${{ steps.version_date.outputs.date }}.zip
+          asset_content_type: application/zip
+      - name: Upload HPro SD Card Asset - No Map
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ steps.create_release.outputs.upload_url }}
+          asset_path: artifacts/sdcard-no-map-hpro/sdcard-no-map.zip
+          asset_name: COPY_TO_SDCARD_hpro_mayhem_nightly_${{ steps.version_date.outputs.date }}-no-world-map.zip
           asset_content_type: application/zip

.github/workflows/create_stable_release.yml

@@ -1,25 +1,36 @@
 name: Stable Release
 
-on:    
+on:
   workflow_dispatch:
 
 jobs:
   build:
     runs-on: ubuntu-latest
+    name: build (${{ matrix.device_name }})
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - device: default
+            device_name: HackRF
+            cmake_args: ""
+            artifact_suffix: "_hackrf"
+          - device: portarf
+            device_name: PortaRF
+            cmake_args: "-DFLASH_MB_SIZE=2 -DFLASH_MB_LIMIT_SIZE=2"
+            artifact_suffix: "_portarf"
+          - device: hpro
+            device_name: HackRF Pro
+            cmake_args: "-DBOARD=PRALINE"
+            artifact_suffix: "_hpro"
     steps:
       - name: Get current date
         id: date
         run: echo "date=$(date +'%Y-%m-%d')" >> $GITHUB_OUTPUT
-      - name: Checkout 
+      - name: Checkout
         uses: actions/checkout@master
         with:
           fetch-depth: 0
-          #ref: next
-          # The branch, tag or SHA to checkout. When checking out the repository that
-          # triggered a workflow, this defaults to the reference or SHA for that event.
-          # Otherwise, uses the default branch.
-          # https://github.com/actions/checkout
-          # So scheduled runs will use the default branch (next) but its now possible to trigger a workflow from another branch
           submodules: true
       - name: Git Sumbodule Update
         run: |
@@ -27,18 +38,15 @@ jobs:
       - name: Get version
         id: version
         run: echo "version=$(cat .github/workflows/version.txt)" >> $GITHUB_OUTPUT
-      - name: Get past version
-        id: past_version
-        run: echo "past_version=$(cat .github/workflows/past_version.txt)" >> $GITHUB_OUTPUT
       - name: Build the Docker image
         run: docker build -t portapack-dev -f dockerfile-nogit . --tag my-image-name:$(date +%s)
       - name: Make build folder
         run: mkdir ${{ github.workspace }}/build
       - name: Run the Docker image
-        run: docker run -e VERSION_STRING=${{ steps.version.outputs.version }} -i -v ${{ github.workspace }}:/havoc portapack-dev
+        run: docker run -e VERSION_STRING=${{ steps.version.outputs.version }} -i -v ${{ github.workspace }}:/havoc portapack-dev ${{ matrix.cmake_args }}
       - name: Create Small SD Card ZIP - No World Map
         run: |
-          mkdir -p sdcard/FIRMWARE && cp build/firmware/portapack-mayhem-firmware.bin sdcard/FIRMWARE/portapack-mayhem_${{ steps.version.outputs.version }}.bin && cp build/firmware/portapack-mayhem_OCI.ppfw.tar sdcard/FIRMWARE/mayhem_${{ steps.version.outputs.version }}_OCI.ppfw.tar && mkdir -p sdcard/APPS && cp build/firmware/application/*.ppma sdcard/APPS && cp build/firmware/standalone/*/*.ppmp sdcard/APPS && cd sdcard && zip -r ../sdcard-no-map.zip . && cd ..
+          mkdir -p sdcard/FIRMWARE && cp build/firmware/portapack-mayhem-firmware.bin sdcard/FIRMWARE/portapack-mayhem_${{ steps.version.outputs.version }}.bin && cp build/firmware/portapack-mayhem_OCI.ppfw.tar sdcard/FIRMWARE/mayhem_${{ steps.version.outputs.version }}${{ matrix.artifact_suffix }}_OCI.ppfw.tar && mkdir -p sdcard/APPS && cp build/firmware/application/*.ppma sdcard/APPS && cp build/firmware/standalone/*/*.ppmp sdcard/APPS && cd sdcard && zip -r ../sdcard-no-map.zip . && cd ..
       - name: Download world map
         run: |
           wget https://github.com/portapack-mayhem/mayhem-firmware/releases/download/world_map/world_map.zip
@@ -53,7 +61,50 @@ jobs:
           zip -j firmware.zip build/firmware/portapack-mayhem-firmware.bin && cd flashing && zip -r ../firmware.zip *
       - name: Create SD Card ZIP
         run: |
-          mkdir -p sdcard/FIRMWARE && cp build/firmware/portapack-mayhem-firmware.bin sdcard/FIRMWARE/portapack-mayhem_${{ steps.version.outputs.version }}.bin && cp build/firmware/portapack-mayhem_OCI.ppfw.tar sdcard/FIRMWARE/mayhem_${{ steps.version.outputs.version }}_OCI.ppfw.tar && mkdir -p sdcard/APPS && cp build/firmware/application/*.ppma sdcard/APPS && cp build/firmware/standalone/*/*.ppmp sdcard/APPS && cd sdcard && zip -r ../sdcard.zip . && cd ..
+          mkdir -p sdcard/FIRMWARE && cp build/firmware/portapack-mayhem-firmware.bin sdcard/FIRMWARE/portapack-mayhem_${{ steps.version.outputs.version }}.bin && cp build/firmware/portapack-mayhem_OCI.ppfw.tar sdcard/FIRMWARE/mayhem_${{ steps.version.outputs.version }}${{ matrix.artifact_suffix }}_OCI.ppfw.tar && mkdir -p sdcard/APPS && cp build/firmware/application/*.ppma sdcard/APPS && cp build/firmware/standalone/*/*.ppmp sdcard/APPS && cd sdcard && zip -r ../sdcard.zip . && cd ..
+      - name: Upload firmware zip artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: firmware-${{ matrix.device }}
+          path: ./firmware.zip
+      - name: Upload SD card artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: sdcard-${{ matrix.device }}
+          path: ./sdcard.zip
+      - name: Upload SD card no-map artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: sdcard-no-map-${{ matrix.device }}
+          path: ./sdcard-no-map.zip
+      - name: Upload OCI tar artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: oci-tar-${{ matrix.device }}
+          path: build/firmware/portapack-mayhem_OCI.ppfw.tar
+
+  release:
+    needs: build
+    runs-on: ubuntu-latest
+    steps:
+      - name: Get current date
+        id: date
+        run: echo "date=$(date +'%Y-%m-%d')" >> $GITHUB_OUTPUT
+      - name: Checkout
+        uses: actions/checkout@master
+        with:
+          fetch-depth: 0
+          submodules: true
+      - name: Get version
+        id: version
+        run: echo "version=$(cat .github/workflows/version.txt)" >> $GITHUB_OUTPUT
+      - name: Get past version
+        id: past_version
+        run: echo "past_version=$(cat .github/workflows/past_version.txt)" >> $GITHUB_OUTPUT
+      - name: Download all artifacts
+        uses: actions/download-artifact@v4
+        with:
+          path: artifacts
       - name: Create changelog
         env:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
@@ -78,7 +129,7 @@ jobs:
             ## Release notes
             ###  Revision (${{ steps.version.outputs.version }}):
             ${{ steps.changelog.outputs.content }}
-            
+
             **Full Changelog**: https://github.com/portapack-mayhem/mayhem-firmware/compare/${{ steps.past_version.outputs.past_version }}...${{ steps.version.outputs.version }}
 
             ## Installation
@@ -90,44 +141,114 @@ jobs:
             For certain functionality, like external apps, the world map, GPS simulator, and others you need to uncompress (using [7-zip](https://www.7-zip.org/download.html)) the files from `mayhem_vX.Y.Z_COPY_TO_SDCARD.zip` to a FAT32 formatted MicroSD card.
           draft: true
           prerelease: false
-      - name: Upload Firmware TAR Asset
-        id: upload-firmware-tar-asset 
+      # Default device assets
+      - name: Upload Default Firmware TAR Asset
         uses: actions/upload-release-asset@v1
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         with:
           upload_url: ${{ steps.create_release.outputs.upload_url }}
-          asset_path: build/firmware/portapack-mayhem_OCI.ppfw.tar
-          asset_name: mayhem_${{ steps.version.outputs.version }}_OCI.ppfw.tar
+          asset_path: artifacts/oci-tar-default/portapack-mayhem_OCI.ppfw.tar
+          asset_name: OCI_hackrf_mayhem_${{ steps.version.outputs.version }}.ppfw.tar
           asset_content_type: application/x-tar
-      - name: Upload Firmware Asset
-        id: upload-firmware-asset 
+      - name: Upload Default Firmware Asset
         uses: actions/upload-release-asset@v1
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         with:
           upload_url: ${{ steps.create_release.outputs.upload_url }}
-          asset_path: ./firmware.zip
-          asset_name: mayhem_${{ steps.version.outputs.version }}_FIRMWARE.zip
+          asset_path: artifacts/firmware-default/firmware.zip
+          asset_name: FIRMWARE_hackrf_mayhem_${{ steps.version.outputs.version }}.zip
           asset_content_type: application/zip
-      - name: Upload SD Card Assets
-        id: upload-sd-card-asset 
+      - name: Upload Default SD Card Asset
         uses: actions/upload-release-asset@v1
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         with:
           upload_url: ${{ steps.create_release.outputs.upload_url }}
-          asset_path: ./sdcard.zip
-          asset_name: mayhem_${{ steps.version.outputs.version }}_COPY_TO_SDCARD.zip
+          asset_path: artifacts/sdcard-default/sdcard.zip
+          asset_name: COPY_TO_SDCARD_hackrf_mayhem_${{ steps.version.outputs.version }}.zip
           asset_content_type: application/zip
-      - name: Upload SD Card Assets - No Map
-        id: upload-sd-card-asset-no-map 
+      - name: Upload Default SD Card Asset - No Map
         uses: actions/upload-release-asset@v1
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         with:
           upload_url: ${{ steps.create_release.outputs.upload_url }}
-          asset_path: ./sdcard-no-map.zip
-          asset_name: mayhem_${{ steps.version.outputs.version }}_COPY_TO_SDCARD-no-world-map.zip
+          asset_path: artifacts/sdcard-no-map-default/sdcard-no-map.zip
+          asset_name: COPY_TO_SDCARD_hackrf_mayhem_${{ steps.version.outputs.version }}-no-world-map.zip
+          asset_content_type: application/zip
+      # PortaRF device assets
+      - name: Upload PortaRF Firmware TAR Asset
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ steps.create_release.outputs.upload_url }}
+          asset_path: artifacts/oci-tar-portarf/portapack-mayhem_OCI.ppfw.tar
+          asset_name: OCI_portarf_mayhem_${{ steps.version.outputs.version }}.ppfw.tar
+          asset_content_type: application/x-tar
+      - name: Upload PortaRF Firmware Asset
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ steps.create_release.outputs.upload_url }}
+          asset_path: artifacts/firmware-portarf/firmware.zip
+          asset_name: FIRMWARE_portarf_mayhem_${{ steps.version.outputs.version }}.zip
+          asset_content_type: application/zip
+      - name: Upload PortaRF SD Card Asset
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ steps.create_release.outputs.upload_url }}
+          asset_path: artifacts/sdcard-portarf/sdcard.zip
+          asset_name: COPY_TO_SDCARD_portarf_mayhem_${{ steps.version.outputs.version }}.zip
+          asset_content_type: application/zip
+      - name: Upload PortaRF SD Card Asset - No Map
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ steps.create_release.outputs.upload_url }}
+          asset_path: artifacts/sdcard-no-map-portarf/sdcard-no-map.zip
+          asset_name: COPY_TO_SDCARD_portarf_mayhem_${{ steps.version.outputs.version }}-no-world-map.zip
+          asset_content_type: application/zip
+      # HPro device assets
+      - name: Upload HPro Firmware TAR Asset
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ steps.create_release.outputs.upload_url }}
+          asset_path: artifacts/oci-tar-hpro/portapack-mayhem_OCI.ppfw.tar
+          asset_name: OCI_hpro_mayhem_${{ steps.version.outputs.version }}.ppfw.tar
+          asset_content_type: application/x-tar
+      - name: Upload HPro Firmware Asset
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ steps.create_release.outputs.upload_url }}
+          asset_path: artifacts/firmware-hpro/firmware.zip
+          asset_name: FIRMWARE_hpro_mayhem_${{ steps.version.outputs.version }}.zip
+          asset_content_type: application/zip
+      - name: Upload HPro SD Card Asset
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ steps.create_release.outputs.upload_url }}
+          asset_path: artifacts/sdcard-hpro/sdcard.zip
+          asset_name: COPY_TO_SDCARD_hpro_mayhem_${{ steps.version.outputs.version }}.zip
+          asset_content_type: application/zip
+      - name: Upload HPro SD Card Asset - No Map
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ steps.create_release.outputs.upload_url }}
+          asset_path: artifacts/sdcard-no-map-hpro/sdcard-no-map.zip
+          asset_name: COPY_TO_SDCARD_hpro_mayhem_${{ steps.version.outputs.version }}-no-world-map.zip
           asset_content_type: application/zip
-     

.github/workflows/past_version.txt

@@ -1 +1 @@
-v2.2.0
+v2.3.1

.github/workflows/version.txt

@@ -1 +1 @@
-v2.3.0
+v2.3.2

.gitignore

@@ -83,3 +83,4 @@ venv/
 # generated bitmap arr file
 # TODO: generate bitmap during build, since we use python during build anyway, lemme know if this is a bad idea @zxkmm
 /firmware/tools/bitmap.hpp
+firmware/flashsize.h

CMakeLists.txt

@@ -27,6 +27,40 @@ set(CMAKE_COLOR_MAKEFILE ON)
 
 add_compile_options(-fdiagnostics-color=always)
 
+#Flash size related options
+#This is the size of the flash memory we SUPPORT. Don't worry, the internl flash app has harder limits based on device type.
+if(NOT DEFINED FLASH_MB_SIZE)
+    if(BOARD STREQUAL "PRALINE")
+        set(FLASH_MB_SIZE 4) # PRALINE has 4MB flash
+    else()
+        set(FLASH_MB_SIZE 2) # Default to 2MB if not provided. For PortaRf this should be 2MB passed to cmake with -DFLASH_MB_SIZE=2
+    endif()
+endif()
+message("Configuring for FLASH_MB_SIZE=${FLASH_MB_SIZE}MB")
+#This is the flash memory size we build. This can be less, so the FW size will be less, so can be flashed with older utils.
+if(NOT DEFINED FLASH_MB_LIMIT_SIZE)
+	if(BOARD STREQUAL "PRALINE")
+		set(FLASH_MB_LIMIT_SIZE 3.5) #PRALINE 4 MB = 3.5 firmware + 0.5 MB fpga bitstream.
+	else()
+	    set(FLASH_MB_LIMIT_SIZE 1) #TODO: should be ${FLASH_MB_SIZE} remove once we got a stable build for all devices we support with bigger than 1 mb flash
+	endif()
+endif()
+message("Configuring for FLASH_MB_LIMIT_SIZE=${FLASH_MB_LIMIT_SIZE}MB")
+
+if(FLASH_MB_SIZE LESS FLASH_MB_LIMIT_SIZE)
+    message(FATAL_ERROR "Error: The supported flash size is lower than the generated flash file. Build halted.")
+endif()
+
+math(EXPR FLASH_BYTES_SIZE "${FLASH_MB_SIZE} * 1024 * 1024")
+if(BOARD STREQUAL "PRALINE")
+	math(EXPR FLASH_BYTES_LIMIT_SIZE "3584 * 1024") #4 MB = 3.5 firmware + 0.5 MB fpga bitstream.
+else()
+    math(EXPR FLASH_BYTES_LIMIT_SIZE "${FLASH_MB_LIMIT_SIZE} * 1024 * 1024")
+endif()
+
+#generate h files
+configure_file(flashsize.h.in ${CMAKE_CURRENT_SOURCE_DIR}/firmware/flashsize.h)
+
 option(USE_CCACHE "Enable ccache, please keep an eye on this because sometimes it's not quite stable and generated unusable binary" OFF)
 
 project(portapack-h1)

docs/CNAME

@@ -1 +0,0 @@
-portapack.ried.cl

firmware/CMakeLists.txt

@@ -56,7 +56,7 @@ add_subdirectory(test)
 # NOTE: Dependencies break if the .bin files aren't included in DEPENDS. WTF, CMake?
 add_custom_command(
 	OUTPUT ${FIRMWARE_FILENAME}
-	COMMAND ${MAKE_SPI_IMAGE} ${application_BINARY_DIR}/application.bin ${baseband_BINARY_DIR}/baseband.img ${FIRMWARE_FILENAME}
+	COMMAND ${MAKE_SPI_IMAGE} ${application_BINARY_DIR}/application.bin ${baseband_BINARY_DIR}/baseband.img ${FIRMWARE_FILENAME} ${FLASH_BYTES_LIMIT_SIZE}
 	DEPENDS baseband application ${MAKE_SPI_IMAGE}
 		 ${baseband_BINARY_DIR}/baseband.img ${application_BINARY_DIR}/application.bin
 	VERBATIM
@@ -67,6 +67,24 @@ add_custom_target(
 	DEPENDS ${FIRMWARE_FILENAME} ${HACKRF_FIRMWARE_DFU_FILENAME} ${HACKRF_FIRMWARE_FILENAME}
 )
 
+# PRALINE: Append FPGA bitstream to firmware at offset 0x180000
+# The base firmware is 1MB, FPGA goes at 1MB offset, final size is 2MB
+if(BOARD STREQUAL "PRALINE")
+	math(EXPR PRALINE_FINAL_SIZE "4 * 1024 * 1024")
+	set(PRALINE_FPGA_BIN ${CMAKE_CURRENT_SOURCE_DIR}/../hackrf/firmware/fpga/build/praline_fpga.bin)
+	set(APPEND_FPGA_SCRIPT ${CMAKE_CURRENT_SOURCE_DIR}/tools/append_fpga_bitstream.py)
+	add_custom_command(
+		TARGET firmware POST_BUILD
+		COMMAND ${CMAKE_COMMAND} -E echo "Appending PRALINE FPGA bitstream to firmware..."
+		COMMAND python3 ${APPEND_FPGA_SCRIPT} ${FIRMWARE_FILENAME} ${PRALINE_FPGA_BIN} ${FIRMWARE_FILENAME}.tmp ${PRALINE_FINAL_SIZE}
+		COMMAND ${CMAKE_COMMAND} -E rename ${FIRMWARE_FILENAME}.tmp ${FIRMWARE_FILENAME}
+		COMMAND ${CMAKE_COMMAND} -E echo "PRALINE firmware with FPGA bitstream created:"
+		COMMAND ls -la ${FIRMWARE_FILENAME}
+		COMMENT "Appending PRALINE FPGA bitstream"
+		VERBATIM
+	)
+endif()
+
 if(${GCC_VERSION_MISMATCH})
 	set(COMPILER_MISMATCH_MESSAGE "WARNING: Compiler version mismatch, please use the official compiler version ${EXPECTED_GCC_VERSION} when sharing builds! Current compiler version: ${CMAKE_CXX_COMPILER_VERSION}")
 	message(${COMPILER_MISMATCH_MESSAGE})

firmware/application/CMakeLists.txt

@@ -86,6 +86,9 @@ set(CPLD_20150901_DATA_CPP ${CMAKE_CURRENT_BINARY_DIR}/portapack_cpld_20150901_d
 set(CPLD_20170522_SVF_PATH ${HARDWARE_PATH}/portapack_h1/cpld/20170522/output_files/portapack_h1_cpld.svf)
 set(CPLD_20170522_DATA_CPP ${CMAKE_CURRENT_BINARY_DIR}/portapack_cpld_20170522_data.cpp)
 
+set(CPLD_H4M_SVF_PATH ${HARDWARE_PATH}/portapack_h4m/CPLD/AG256SL100/output_files/portapack_h4m_cpld.svf)
+set(CPLD_H4M_DATA_CPP ${CMAKE_CURRENT_BINARY_DIR}/portapack_cpld_h4m_data.cpp)
+
 set(HACKRF_CPLD_DATA_HPP ${CMAKE_CURRENT_BINARY_DIR}/hackrf_cpld_data.hpp)
 set(HACKRF_CPLD_DATA_CPP ${CMAKE_CURRENT_BINARY_DIR}/hackrf_cpld_data.cpp)
 
@@ -118,11 +121,16 @@ set(CSRC
 	usb_serial_endpoints.c
 	usb_serial_device_to_host.c
 	i2c_device_to_host.c
+	hackrf_core_mini.c
+	${HACKRF_PATH}/firmware/common/adc.c
 	${HACKRF_PATH}/firmware/common/usb.c
 	${HACKRF_PATH}/firmware/common/usb_queue.c
 	${HACKRF_PATH}/firmware/hackrf_usb/usb_device.c
 	${HACKRF_PATH}/firmware/common/usb_request.c
 	${HACKRF_PATH}/firmware/common/usb_standard_request.c
+	${HACKRF_PATH}/firmware/libopencm3/lib/lpc43xx/scu.c
+	${HACKRF_PATH}/firmware/common/gpio_lpc.c
+	${HACKRF_PATH}/firmware/common/platform_detect.c
 	${CHIBIOS}/os/various/chprintf.c
 )
 
@@ -205,6 +213,8 @@ set(CPPSRC
 	irq_controls.cpp
 	irq_lcd_frame.cpp
 	irq_rtc.cpp
+	keeloq_file.cpp
+	keeloq_keystore.cpp
 	log_file.cpp
 	metadata_file.cpp
 	flipper_subfile.cpp
@@ -237,6 +247,7 @@ set(CPPSRC
 	hw/encoder.cpp
 	hw/max2837.cpp
 	hw/max2839.cpp
+	hw/max2831.cpp
 	hw/max5864.cpp
 	hw/rffc507x.cpp
 	hw/rffc507x_spi.cpp
@@ -296,10 +307,8 @@ set(CPPSRC
 	apps/ui_rds.cpp
 	apps/ui_recon_settings.cpp
 	apps/ui_recon.cpp
-	apps/ui_sd_over_usb.cpp
 	apps/ui_search.cpp
 	apps/ui_settings.cpp
-	apps/ui_siggen.cpp
 	apps/ui_sonde.cpp
 	apps/ui_ss_viewer.cpp
 	apps/ui_standalone_view.cpp
@@ -319,6 +328,7 @@ set(CPPSRC
 	config_mode.cpp
 	${CPLD_20150901_DATA_CPP}
 	${CPLD_20170522_DATA_CPP}
+	${CPLD_H4M_DATA_CPP}
 	${HACKRF_CPLD_DATA_CPP}
 	ui_external_items_menu_loader.cpp
 	view_factory_base.cpp
@@ -404,7 +414,11 @@ set(CPPWARN "-Wall -Wextra -Wno-psabi")
 # List all default C defines here, like -D_DEBUG=1
 # TODO: Switch -DCRT0_INIT_DATA depending on load from RAM or SPIFI?
 # NOTE: _RANDOM_TCC to kill a GCC 4.9.3 error with std::max argument types
-set(DDEFS "-DLPC43XX -DLPC43XX_M0 -D__NEWLIB__ -DHACKRF_ONE -DTOOLCHAIN_GCC -DTOOLCHAIN_GCC_ARM -D_RANDOM_TCC=0 -D'VERSION_STRING=\"${VERSION}\"' -DVERSION_MD5=${VERSION_MD5} -D'GCC_VERSION_MISMATCH=${GCC_VERSION_MISMATCH}'")
+# Use BOARD variable if set, otherwise default to HACKRF_ONE
+if(NOT DEFINED BOARD)
+    set(BOARD "HACKRF_ONE")
+endif()
+set(DDEFS "-DLPC43XX -DLPC43XX_M0 -D__NEWLIB__ -D${BOARD} -DTOOLCHAIN_GCC -DTOOLCHAIN_GCC_ARM -D_RANDOM_TCC=0 -D'VERSION_STRING=\"${VERSION}\"' -DVERSION_MD5=${VERSION_MD5} -D'GCC_VERSION_MISMATCH=${GCC_VERSION_MISMATCH}'")
 
 # List all default ASM defines here, like -D_DEBUG=1
 set(DADEFS)
@@ -462,6 +476,12 @@ add_custom_command(
 	DEPENDS ${EXTRACT_CPLD_DATA} ${CPLD_20170522_SVF_PATH}
 )
 
+add_custom_command(
+	OUTPUT ${CPLD_H4M_DATA_CPP}
+	COMMAND ${EXTRACT_CPLD_DATA} ${CPLD_H4M_SVF_PATH} rev_h4m >${CPLD_H4M_DATA_CPP}
+	DEPENDS ${EXTRACT_CPLD_DATA} ${CPLD_H4M_SVF_PATH}
+)
+
 add_custom_command(
 	OUTPUT ${HACKRF_CPLD_DATA_CPP}
 	COMMAND ${HACKRF_CPLD_TOOL} --xsvf ${HACKRF_CPLD_XSVF_PATH} --portapack-data ${HACKRF_CPLD_DATA_CPP}
@@ -469,6 +489,9 @@ add_custom_command(
 )
 
 add_executable(${PROJECT_NAME}.elf ${CSRC} ${CPPSRC} ${ASMSRC})
+target_link_options(${PROJECT_NAME}.elf PRIVATE
+    "LINKER:--defsym,LD_FLASH_SIZE=${FLASH_BYTES_LIMIT_SIZE}"
+)
 set_target_properties(${PROJECT_NAME}.elf PROPERTIES LINK_DEPENDS ${LDSCRIPT})
 add_definitions(${DEFS})
 include_directories(. ${INCDIR})

firmware/application/app_settings.cpp

@@ -68,6 +68,9 @@ void BoundSetting::parse(std::string_view value) {
             as<bool>() = (parsed != 0);
             break;
         }
+        case SettingType::Float:
+            as<float>() = atof(value.data());
+            break;
     };
 }
 
@@ -101,6 +104,11 @@ void BoundSetting::write(File& file) const {
         case SettingType::Bool:
             file.write(as<bool>() ? "1" : "0", 1);
             break;
+
+        case SettingType::Float: {
+            auto float_str = to_string_decimal(as<float>(), 6);
+            file.write(float_str.c_str(), float_str.length());
+        }
     }
 
     file.write("\r\n", 2);

firmware/application/app_settings.hpp

@@ -52,6 +52,7 @@ class BoundSetting {
         U8,
         String,
         Bool,
+        Float
     };
 
    public:
@@ -73,6 +74,9 @@ class BoundSetting {
     BoundSetting(std::string_view name, bool* target)
         : name_{name}, target_{target}, type_{SettingType::Bool} {}
 
+    BoundSetting(std::string_view name, float* target)
+        : name_{name}, target_{target}, type_{SettingType::Float} {}
+
     std::string_view name() const { return name_; }
     void parse(std::string_view value);
     void write(File& file) const;

firmware/application/apps/ais_app.hpp

@@ -159,7 +159,7 @@ class AISAppView : public View {
     ~AISAppView();
 
     void set_parent_rect(const Rect new_parent_rect) override;
-    void paint(Painter&) override{};
+    void paint(Painter&) override {};
 
     void focus() override;
 

firmware/application/apps/ble_comm_app.hpp

@@ -59,7 +59,7 @@ class BLECommView : public View {
     ~BLECommView();
 
     void set_parent_rect(const Rect new_parent_rect) override;
-    void paint(Painter&) override{};
+    void paint(Painter&) override {};
 
     void focus() override;
 

firmware/application/apps/ble_rx_app.hpp

@@ -209,7 +209,7 @@ class BLERxView : public View {
     ~BLERxView();
 
     void set_parent_rect(const Rect new_parent_rect) override;
-    void paint(Painter&) override{};
+    void paint(Painter&) override {};
 
     void focus() override;
 

firmware/application/apps/ble_tx_app.hpp

@@ -105,7 +105,7 @@ class BLETxView : public View {
     ~BLETxView();
 
     void set_parent_rect(const Rect new_parent_rect) override;
-    void paint(Painter&) override{};
+    void paint(Painter&) override {};
 
     void focus() override;
 

firmware/application/apps/pocsag_app.cpp

@@ -56,6 +56,7 @@ POCSAGSettingsView::POCSAGSettingsView(
     : settings_{settings} {
     add_children(
         {&labels,
+         &opt_baud_rate,
          &check_log,
          &check_log_raw,
          &check_small_font,
@@ -65,6 +66,7 @@ POCSAGSettingsView::POCSAGSettingsView(
          &field_filter_address,
          &button_save});
 
+    opt_baud_rate.set_by_value(settings_.baud_rate);
     check_log.set_value(settings_.enable_logging);
     check_log_raw.set_value(settings_.enable_raw_log);
     check_small_font.set_value(settings_.enable_small_font);
@@ -81,7 +83,7 @@ POCSAGSettingsView::POCSAGSettingsView(
         settings_.hide_addr_only = check_hide_addr_only.value();
         settings_.filter_mode = opt_filter_mode.selected_index_value();
         settings_.filter_address = field_filter_address.to_integer();
-
+        settings_.baud_rate = opt_baud_rate.selected_index_value();
         nav.pop();
     };
 }
@@ -142,7 +144,7 @@ POCSAGAppView::POCSAGAppView(NavigationView& nav)
 
     audio::output::start();
     receiver_model.enable();
-    baseband::set_pocsag();
+    baseband::set_pocsag((int8_t)settings_.baud_rate);
 }
 
 void POCSAGAppView::focus() {
@@ -182,6 +184,7 @@ void POCSAGAppView::refresh_ui() {
             btn_text = "Filter Last";
             break;
     }
+    baseband::set_pocsag((int8_t)settings_.baud_rate);
     button_filter_last.set_text(btn_text);
 }
 

firmware/application/apps/pocsag_app.hpp

@@ -126,6 +126,7 @@ struct POCSAGSettings {
     bool hide_bad_data = false;
     bool hide_addr_only = false;
     uint8_t filter_mode = false;
+    int32_t baud_rate = -1;
     uint32_t filter_address = 0;
 };
 
@@ -139,7 +140,16 @@ class POCSAGSettingsView : public View {
    private:
     POCSAGSettings& settings_;
 
+    OptionsField opt_baud_rate{
+        {8 * 8, 0 * 16},
+        4,
+        {{"Auto", -1},
+         {" 512", 0},
+         {"1200", 1},
+         {"2400", 2}}};
+
     Labels labels{
+        {{2 * 8, 0 * 16}, "Baud:", Theme::getInstance()->fg_light->foreground},
         {{2 * 8, 12 * 16}, "Filter Mode:", Theme::getInstance()->fg_light->foreground},
         {{2 * 8, 13 * 16}, "Filter Addr:", Theme::getInstance()->fg_light->foreground},
     };
@@ -221,6 +231,7 @@ class POCSAGAppView : public View {
             {"filter_address"sv, &settings_.filter_address},
             {"hide_bad_data"sv, &settings_.hide_bad_data},
             {"hide_addr_only"sv, &settings_.hide_addr_only},
+            {"baud_rate"sv, &settings_.baud_rate},
         }};
 
     void refresh_ui();

firmware/application/apps/ui_about_simple.cpp

@@ -10,7 +10,7 @@ namespace ui {
 constexpr std::string_view mayhem_information_list[] = {
     "#****** Mayhem Community ******",
     " ",
-    "  https://discord.mayhem.app",
+    "  https://discord.hackrf.app",
     " ",
     "#**** List of contributors ****",
     " ",

firmware/application/apps/ui_aprs_tx.cpp

@@ -29,6 +29,7 @@
 #include "baseband_api.hpp"
 #include "portapack_shared_memory.hpp"
 #include "portapack_persistent_memory.hpp"
+#include "ui_geomap.hpp"
 
 #include <cstring>
 #include <stdio.h>
@@ -49,10 +50,24 @@ APRSTXView::~APRSTXView() {
 
 void APRSTXView::start_tx() {
     // TODO: Clean up this API to take string_views to avoid allocations.
+    std::string new_payload = payload;
+
+    std::string gps = text_gps_coord.get();
+    std::string token = "?GPS?";
+    size_t pos = 0;
+    while ((pos = new_payload.find(token, pos)) != std::string::npos) {
+        new_payload.replace(pos, token.size(), gps);
+        pos += gps.size();
+    }
+
+    text_payload.set(new_payload);
+
+    std::string path = text_path.get();
+
     make_aprs_frame(
         sym_source.to_string().c_str(), num_ssid_source.value(),
         sym_dest.to_string().c_str(), num_ssid_dest.value(),
-        payload);
+        new_payload, path);
 
     // uint8_t * bb_data_ptr = shared_memory.bb_data.data;
     // text_payload.set(to_string_hex_array(bb_data_ptr + 56, 15));
@@ -77,6 +92,61 @@ void APRSTXView::on_tx_progress(const uint32_t progress, const bool done) {
     }
 }
 
+void APRSTXView::process_coordinates(float lat_, float lon_) {
+    std::string s;
+
+    char ns = lat_ >= 0 ? 'N' : 'S';
+    float lat = (lat_ >= 0) ? lat_ : -lat_;
+    uint32_t lat_d = (uint32_t)lat;
+    uint32_t lat_m = (uint32_t)((lat - lat_d) * 6000.0f + 0.5f);
+
+    if (lat_m >= 6000) {
+        lat_m = 0;
+        lat_d++;
+    }
+
+    s += to_string_dec_uint(lat_d, 2, '0');
+    s += to_string_dec_uint(lat_m / 100, 2, '0');
+    s += ".";
+    s += to_string_dec_uint(lat_m % 100, 2, '0');
+    s += ns;
+
+    s += "/";
+
+    char ew = lon_ >= 0 ? 'E' : 'W';
+    float lon = (lon_ >= 0) ? lon_ : -lon_;
+    uint32_t lon_d = (uint32_t)lon;
+    uint32_t lon_m = (uint32_t)((lon - lon_d) * 6000.0f + 0.5f);
+
+    if (lon_m >= 6000) {
+        lon_m = 0;
+        lon_d++;
+    }
+
+    s += to_string_dec_uint(lon_d, 3, '0');
+    s += to_string_dec_uint(lon_m / 100, 2, '0');
+    s += ".";
+    s += to_string_dec_uint(lon_m % 100, 2, '0');
+    s += ew;
+    text_gps_coord.set(s);
+}
+
+void APRSTXView::on_gps(const GPSPosDataMessage* message) {
+    if (manual_gps_mode) {
+        return;  // no more update once set manually
+    }
+    if (message->lat < -90.0 || message->lat > 90.0 ||
+        message->lon < -180.0 || message->lon > 180.0) {
+        return;
+    }
+    if (message->lat == 0.0f && message->lon == 0.0f) {
+        return;
+    }
+    last_lat = message->lat;
+    last_lon = message->lon;
+    process_coordinates(message->lat, message->lon);
+}
+
 APRSTXView::APRSTXView(NavigationView& nav) {
     baseband::run_image(portapack::spi_flash::image_tag_afsk);
 
@@ -87,8 +157,33 @@ APRSTXView::APRSTXView(NavigationView& nav) {
                   &num_ssid_dest,
                   &text_payload,
                   &button_set,
+                  &text_gps_coord,
+                  &button_mangps,
+                  &gps_is_manual,
+                  &text_path,
+                  &button_setpath,
                   &tx_view});
 
+    sym_source.set_value(symsrc);
+    num_ssid_source.set_value(ssidsrc);
+    sym_dest.set_value(symdst);
+    num_ssid_dest.set_value(ssiddst);
+    text_payload.set(payload);
+    text_path.set(path_cache);
+
+    sym_source.on_change = [this](SymField&) {
+        symsrc = sym_source.to_string();
+    };
+    num_ssid_source.on_change = [this](int32_t v) {
+        ssidsrc = v;
+    };
+    sym_dest.on_change = [this](SymField&) {
+        symdst = sym_dest.to_string();
+    };
+    num_ssid_dest.on_change = [this](int32_t v) {
+        ssiddst = v;
+    };
+
     button_set.on_select = [this, &nav](Button&) {
         text_prompt(
             nav,
@@ -99,6 +194,17 @@ APRSTXView::APRSTXView(NavigationView& nav) {
                 text_payload.set(s);
             });
     };
+    button_setpath.on_select = [this, &nav](Button&) {
+        text_prompt(
+            nav,
+            path_cache,
+            60,
+            ENTER_KEYBOARD_MODE_ALPHA,
+            [this](std::string& s) {
+                text_path.set(s);
+                path_cache = s;
+            });
+    };
 
     tx_view.on_edit_frequency = [this, &nav]() {
         auto new_view = nav.push<FrequencyKeypadView>(transmitter_model.target_frequency());
@@ -116,6 +222,23 @@ APRSTXView::APRSTXView(NavigationView& nav) {
         tx_view.set_transmitting(false);
         transmitter_model.disable();
     };
+
+    button_mangps.on_select = [this, &nav](Button&) {
+        nav.push<GeoMapView>(
+            0,
+            GeoPos::alt_unit::METERS,
+            GeoPos::spd_unit::HIDDEN,
+            last_lat,
+            last_lon,
+            [this](int32_t, float lat, float lon, int32_t) {
+                last_lat = lat;
+                last_lon = lon;
+                manual_gps_mode = true;
+                gps_is_manual.set("MANUAL");
+                process_coordinates(lat, lon);
+            });
+    };
+    // process_coordinates(last_lat, last_lon); //don't load last, so won't confuse users
 }
 
 } /* namespace ui */

firmware/application/apps/ui_aprs_tx.hpp

@@ -50,59 +50,109 @@ class APRSTXView : public View {
         1750000 /* bandwidth */,
         AFSK_TX_SAMPLERATE /* sampling rate */
     };
-    app_settings::SettingsManager settings_{
-        "tx_aprs", app_settings::Mode::TX};
 
+    std::string symsrc = "";
+    std::string symdst = "";
     std::string payload{""};
+    std::string path_cache = "";
+    int32_t ssidsrc = 0;
+    int32_t ssiddst = 0;
+
+    bool manual_gps_mode = false;
+    float last_lat = 0.0f;
+    float last_lon = 0.0f;
+
+    app_settings::SettingsManager settings_{
+        "tx_aprs",
+        app_settings::Mode::TX,
+        {{"symsrc"sv, &symsrc},
+         {"symdst"sv, &symdst},
+         {"ssidsrc"sv, &ssidsrc},
+         {"ssiddst"sv, &ssiddst},
+         {"payload"sv, &payload},
+         {"last_lat"sv, &last_lat},
+         {"last_lon"sv, &last_lon},
+         {"path"sv, &path_cache}}};
 
     void start_tx();
     void generate_frame();
     void generate_frame_pos();
     void on_tx_progress(const uint32_t progress, const bool done);
+    void on_gps(const GPSPosDataMessage* message);
+    void process_coordinates(float lat, float lon);
 
     Labels labels{
-        {{UI_POS_X(0), 1 * 16}, "Source:       SSID:", Theme::getInstance()->fg_light->foreground},  // 6 alphanum + SSID
-        {{UI_POS_X(0), 2 * 16}, " Dest.:       SSID:", Theme::getInstance()->fg_light->foreground},
-        {{UI_POS_X(0), 4 * 16}, "Info field:", Theme::getInstance()->fg_light->foreground},
+        {{UI_POS_X(0), UI_POS_Y(0)}, "Source:       SSID:", Theme::getInstance()->fg_light->foreground},  // 6 alphanum + SSID
+        {{UI_POS_X(0), UI_POS_Y(1)}, " Dest.:       SSID:", Theme::getInstance()->fg_light->foreground},
+        {{UI_POS_X(0), UI_POS_Y(2)}, "Path: (ex.: WIDE1-1,WIDE2-1)", Theme::getInstance()->fg_light->foreground},
+        {{UI_POS_X(0), UI_POS_Y(6)}, "Info field:", Theme::getInstance()->fg_light->foreground},
+        {{UI_POS_X(0), UI_POS_Y(10)}, "GPS:", Theme::getInstance()->fg_light->foreground},
+        {{UI_POS_X_CENTER(22), UI_POS_Y(14)}, "Use ?GPS? in the info", Theme::getInstance()->fg_light->foreground},
+        {{UI_POS_X_CENTER(17), UI_POS_Y(15)}, "as a placeholder.", Theme::getInstance()->fg_light->foreground},
+    };
+
+    Text text_path{
+        {UI_POS_X(0), UI_POS_Y(3), UI_POS_MAXWIDTH, UI_POS_HEIGHT(1)},
+        "WIDE1-1",
+    };
+    Text gps_is_manual{
+        {UI_POS_X(6), UI_POS_Y(10), UI_POS_WIDTH(10), UI_POS_HEIGHT(1)},
+        "",
     };
 
     SymField sym_source{
-        {7 * 8, 1 * 16},
+        {UI_POS_X(7), UI_POS_Y(0)},
         6,
         SymField::Type::Alpha};
 
     NumberField num_ssid_source{
-        {19 * 8, 1 * 16},
+        {UI_POS_X(19), UI_POS_Y(0)},
         2,
         {0, 15},
         1,
         ' '};
 
     SymField sym_dest{
-        {7 * 8, 2 * 16},
+        {UI_POS_X(7), UI_POS_Y(1)},
         6,
         SymField::Type::Alpha};
 
     NumberField num_ssid_dest{
-        {19 * 8, 2 * 16},
+        {UI_POS_X(19), UI_POS_Y(1)},
         2,
         {0, 15},
         1,
         ' '};
 
     Text text_payload{
-        {UI_POS_X(0), 5 * 16, screen_width, 16},
-        "-"};
+        {UI_POS_X(0), UI_POS_Y(7), UI_POS_MAXWIDTH, UI_POS_HEIGHT(1)},
+        ""};
     Button button_set{
-        {UI_POS_X(0), 6 * 16, 80, 32},
+        {UI_POS_X(0), UI_POS_Y(8), UI_POS_WIDTH(10), UI_POS_HEIGHT(2)},
         "Set"};
 
+    Text text_gps_coord{
+        {UI_POS_X(0), UI_POS_Y(11), UI_POS_WIDTH(20), UI_POS_HEIGHT(1)},
+        "-"};
+
+    Button button_mangps{
+        {UI_POS_X(0), UI_POS_Y(12), UI_POS_WIDTH(14), UI_POS_HEIGHT(2)},
+        "Manual GPS"};
+    Button button_setpath{
+        {UI_POS_X(0), UI_POS_Y(4), UI_POS_WIDTH(14), UI_POS_HEIGHT(2)},
+        "Set Path"};
     TransmitterView tx_view{
         (int16_t)UI_POS_Y_BOTTOM(4),
         5000,
         0  // disable setting bandwith, since APRS used fixed 10k bandwidth
     };
 
+    MessageHandlerRegistration message_handler_gps{
+        Message::ID::GPSPosData,
+        [this](Message* const p) {
+            const auto message = static_cast<const GPSPosDataMessage*>(p);
+            this->on_gps(message);
+        }};
     MessageHandlerRegistration message_handler_tx_progress{
         Message::ID::TXProgress,
         [this](const Message* const p) {

firmware/application/apps/ui_battinfo.hpp

@@ -98,7 +98,7 @@ class BattinfoView : public View {
         "Volt"};
 
     Button button_exit{
-        {UI_POS_X_CENTER(12), 17 * 16, UI_POS_WIDTH(12), UI_POS_HEIGHT(3)},
+        {UI_POS_X_CENTER(12), UI_POS_Y_BOTTOM(4), UI_POS_WIDTH(12), UI_POS_HEIGHT(2)},
         "Back"};
     static msg_t static_fn(void* arg);
     Thread* thread{nullptr};

firmware/application/apps/ui_debug.hpp

@@ -93,6 +93,10 @@ typedef enum {
     CT_SI5351,
     CT_AUDIO,
     CT_MAX17055,
+#ifdef PRALINE
+    CT_FPGA,
+#endif
+    CT_SGPIO,
 } chip_type_t;
 
 struct RegistersWidgetConfig {
@@ -373,6 +377,459 @@ private:
         };
 };*/
 
+/* Radio Signal Path Diagnostics View
+ * Shows status of each component in the RX/TX signal chain:
+ * Antenna -> RF Path -> RFFC5072 -> MAX283x -> MAX5864 -> FPGA -> SGPIO -> MCU
+ */
+class RadioDiagnosticsView : public View {
+   public:
+    RadioDiagnosticsView(NavigationView& nav);
+
+    void focus() override;
+    std::string title() const override { return "Radio Diag"; };
+
+   private:
+    NavigationView& nav_;
+
+    void update_status();
+
+    Text text_title{{0, 0, 240, 16}, "=== Signal Path Status ==="};
+
+    Text text_lbl_rffc{{0, 20, 140, 16}, "RFFC5072 (1st IF):"};
+    Text text_rffc_status{{144, 20, 96, 16}, "---"};
+
+    Text text_lbl_max{{0, 36, 140, 16}, "MAX283x (2nd IF):"};
+    Text text_max_status{{144, 36, 96, 16}, "---"};
+
+    Text text_lbl_adc{{0, 52, 140, 16}, "MAX5864 (ADC):"};
+    Text text_adc_status{{144, 52, 96, 16}, "---"};
+
+    Text text_lbl_fpga{{0, 68, 140, 16}, "FPGA/CPLD:"};
+    Text text_fpga_status{{144, 68, 96, 16}, "---"};
+
+    Text text_lbl_sgpio{{0, 84, 140, 16}, "SGPIO:"};
+    Text text_sgpio_status{{144, 84, 96, 16}, "---"};
+
+    Text text_lbl_clock{{0, 100, 140, 16}, "Si5351 Clocks:"};
+    Text text_clock_status{{144, 100, 96, 16}, "---"};
+
+    Text text_regs_title{{0, 124, 240, 16}, "=== Key Registers ==="};
+
+    Text text_lbl_rffc_reg{{0, 144, 80, 16}, "RFFC R0:"};
+    Text text_rffc_reg{{80, 144, 160, 16}, "---"};
+
+    Text text_lbl_max_reg{{0, 160, 80, 16}, "MAX R0:"};
+    Text text_max_reg{{80, 160, 160, 16}, "---"};
+
+    Text text_lbl_fpga_reg{{0, 176, 80, 16}, "FPGA:"};
+    Text text_fpga_reg{{80, 176, 160, 16}, "---"};
+
+    Text text_lbl_sgpio_reg{{0, 192, 80, 16}, "SGPIO:"};
+    Text text_sgpio_reg{{80, 192, 160, 16}, "---"};
+
+    Text text_test_result{{0, 220, 240, 32}, ""};
+
+    Button button_refresh{
+        {8, 280, 72, 24},
+        "Refresh"};
+
+    Button button_done{
+        {168, 280, 64, 24},
+        "Done"};
+};
+
+/* BasebandStatusView ***************************************************/
+
+class BasebandStatusView : public View {
+   public:
+    BasebandStatusView(NavigationView& nav);
+
+    void focus() override;
+    std::string title() const override { return "Baseband Status"; };
+
+   private:
+    NavigationView& nav_;
+
+    void update();
+
+    Text text_title{{0, 0, 240, 16}, "=== Baseband Counters ==="};
+
+    Text text_lbl_marker{{0, 20, 140, 16}, "Streaming Marker:"};
+    Text text_marker{{144, 20, 96, 16}, "---"};
+
+    Text text_lbl_loops{{0, 36, 140, 16}, "Baseband Loops:"};
+    Text text_loops{{144, 36, 96, 16}, "---"};
+
+    Text text_lbl_wait{{0, 52, 140, 16}, "DMA Wait Count:"};
+    Text text_wait{{144, 52, 96, 16}, "---"};
+
+    Text text_lbl_xfr{{0, 68, 140, 16}, "DMA Xfr Count:"};
+    Text text_xfr{{144, 68, 96, 16}, "---"};
+
+    Text text_lbl_missed{{0, 84, 140, 16}, "Buffer Missed:"};
+    Text text_missed{{144, 84, 96, 16}, "---"};
+
+    Text text_status_line1{{0, 110, 240, 16}, ""};
+    Text text_status_line2{{0, 126, 240, 16}, ""};
+    Text text_status_line3{{0, 142, 240, 16}, ""};
+
+    Button button_refresh{
+        {8, 280, 72, 24},
+        "Refresh"};
+
+    Button button_done{
+        {168, 280, 64, 24},
+        "Done"};
+
+    MessageHandlerRegistration message_handler_frame_sync{
+        Message::ID::DisplayFrameSync,
+        [this](const Message* const) { this->update(); }};
+};
+
+/* SGPIOLiveMonitorView ***************************************************/
+
+class SGPIOLiveMonitorView : public View {
+   public:
+    SGPIOLiveMonitorView(NavigationView& nav);
+
+    void focus() override;
+    std::string title() const override { return "SGPIO Live"; };
+
+   private:
+    NavigationView& nav_;
+
+    void update();
+
+    Text text_title{{0, 0, 240, 16}, "=== SGPIO Registers ==="};
+
+    Text text_lbl_ctrl{{0, 20, 140, 16}, "CTRL_ENABLE:"};
+    Text text_ctrl{{144, 20, 96, 16}, "---"};
+
+    Text text_lbl_in{{0, 36, 140, 16}, "GPIO_INREG:"};
+    Text text_in{{144, 36, 96, 16}, "---"};
+
+    Text text_lbl_ss{{0, 52, 140, 16}, "REG_SS[0]:"};
+    Text text_ss{{144, 52, 96, 16}, "---"};
+
+    Text text_lbl_status{{0, 68, 140, 16}, "STATUS_1:"};
+    Text text_status{{144, 68, 96, 16}, "---"};
+
+    Text text_lbl_out{{0, 84, 140, 16}, "GPIO_OUTREG:"};
+    Text text_out{{144, 84, 96, 16}, "---"};
+
+    Text text_lbl_oen{{0, 100, 140, 16}, "GPIO_OENREG:"};
+    Text text_oen{{144, 100, 96, 16}, "---"};
+
+    Text text_diag_line1{{0, 126, 240, 16}, ""};
+    Text text_diag_line2{{0, 142, 240, 16}, ""};
+    Text text_diag_line3{{0, 158, 240, 16}, ""};
+    Text text_diag_line4{{0, 174, 240, 16}, ""};
+
+    Button button_refresh{
+        {8, 280, 72, 24},
+        "Refresh"};
+
+    Button button_done{
+        {168, 280, 64, 24},
+        "Done"};
+
+    MessageHandlerRegistration message_handler_frame_sync{
+        Message::ID::DisplayFrameSync,
+        [this](const Message* const) { this->update(); }};
+};
+
+/* Radio RX Step-by-Step Test View
+ * Tests radio hardware directly without M0 baseband involvement.
+ * Logs each step to help isolate where the signal chain breaks.
+ */
+class RadioRxTestView : public View {
+   public:
+    RadioRxTestView(NavigationView& nav);
+
+    void focus() override;
+    std::string title() const override { return "RX Test"; };
+
+   private:
+    NavigationView& nav_;
+    bool radio_initialized_{false};
+    uint32_t test_frequency_{433000000};  // 433 MHz default
+
+    void log(const std::string& msg);
+    void log_registers(const std::string& label);
+    void run_init_test();
+    void run_rx_mode_test();
+    void run_freq_test();
+    void run_sgpio_test();
+    void run_full_test();
+    void run_step_test();
+    bool check_gpio_changing();
+
+    Labels labels{
+        {{0, 0}, "=== Radio RX Test ===", Theme::getInstance()->fg_yellow->foreground}};
+
+    Console console{
+        {0, 20, 240, 200}};
+
+    Button button_init{
+        {0, 224, 56, 24},
+        "Init"};
+
+    Button button_rx{
+        {60, 224, 56, 24},
+        "RX"};
+
+    Button button_freq{
+        {120, 224, 56, 24},
+        "Freq"};
+
+    Button button_sgpio{
+        {180, 224, 56, 24},
+        "SGPIO"};
+
+    Button button_full{
+        {0, 252, 56, 24},
+        "Full"};
+
+    Button button_step{
+        {60, 252, 56, 24},
+        "Step"};
+
+    Button button_done{
+        {120, 252, 112, 24},
+        "Done"};
+};
+
+/* SGPIO8 Clock Detector View
+ * Samples SGPIO8 pin to verify external clock is present.
+ * Shows toggle count and estimated frequency.
+ */
+class SGPIO8ClockDetectorView : public View {
+   public:
+    SGPIO8ClockDetectorView(NavigationView& nav);
+    void focus() override;
+    std::string title() const override { return "SGPIO8 Clock"; };
+
+   private:
+    NavigationView& nav_;
+
+    Text text_title{{8, 16, 224, 16}, "SGPIO8 Clock Detector"};
+    Text text_lbl_samples{{8, 48, 160, 16}, "Samples (first 20):"};
+    Text text_samples{{8, 64, 224, 16}, "                    "};
+    Text text_lbl_toggles{{8, 96, 160, 16}, "Toggle count:"};
+    Text text_toggles{{8, 112, 224, 16}, "                         "};
+    Text text_status{{8, 144, 224, 32}, "                              "};
+
+    Button button_sample{{8, 200, 96, 24}, "Sample"};
+    Button button_done{{128, 200, 96, 24}, "Done"};
+
+    void sample_sgpio8();
+};
+
+/* Slice Status View
+ * Shows SGPIO slice status: which slices are enabled vs active,
+ * counter values, and data capture status.
+ */
+
+/* Si5351 Debug View
+ * Dedicated diagnostic tool for Si5351 clock generator.
+ * Shows PLL lock status, clock configurations, and allows testing.
+ */
+class Si5351DebugView : public View {
+   public:
+    Si5351DebugView(NavigationView& nav);
+    void focus() override;
+    std::string title() const override { return "Si5351 Clocks"; };
+
+   private:
+    NavigationView& nav_;
+
+    Text text_title{{8, 16, 200, 16}, "Si5351 Clock Generator"};
+
+    Text text_status_label{{8, 40, 80, 16}, "Status Reg:"};
+    Text text_status_value{{96, 40, 144, 16}, ""};
+
+    Text text_pll_a_label{{8, 60, 80, 16}, "PLL A:"};
+    Text text_pll_a_status{{96, 60, 144, 16}, ""};
+
+    Text text_pll_b_label{{8, 80, 80, 16}, "PLL B:"};
+    Text text_pll_b_status{{96, 80, 144, 16}, ""};
+
+    Text text_sys_init_label{{8, 100, 80, 16}, "SYS_INIT:"};
+    Text text_sys_init_status{{96, 100, 144, 16}, ""};
+
+    Text text_xtal_cap_label{{8, 120, 80, 16}, "XTAL Cap:"};
+    Text text_xtal_cap_value{{96, 120, 144, 16}, ""};
+
+    Text text_clk0_label{{8, 150, 72, 16}, "CLK0:"};
+    Text text_clk0_status{{88, 150, 152, 16}, ""};
+
+    Text text_clk0_freq_label{{8, 170, 72, 16}, "  Freq:"};
+    Text text_clk0_freq_value{{88, 170, 152, 16}, ""};
+
+    Text text_clk0_div_label{{8, 190, 72, 16}, "  Div:"};
+    Text text_clk0_div_value{{88, 190, 152, 16}, ""};
+
+    Text text_clk1_label{{8, 210, 96, 16}, "CLK1 (SCT):"};
+    Text text_clk1_status{{112, 210, 128, 16}, ""};
+
+    Button button_refresh{{8, 240, 72, 24}, "Refresh"};
+    Button button_reset_pll{{88, 240, 72, 24}, "Reset PLL"};
+    Button button_done{{168, 240, 64, 24}, "Done"};
+
+    void refresh_status();
+    void reset_pll();
+};
+
+#ifdef PRALINE
+/* SignalPathStatusView *************************************************/
+class SignalPathStatusView : public View {
+   public:
+    SignalPathStatusView(NavigationView& nav);
+    void focus() override;
+    std::string title() const override { return "Signal Path"; };
+
+   private:
+    NavigationView& nav_;
+    void refresh_status();
+
+    Text text_title{{0, 0, 240, 16}, "=== Signal Path Status ==="};
+
+    Text text_lbl_max_enable{{0, 20, 1114, 16}, "MAX2831:"};
+    Text text_max_enable{{116, 20, 124, 16}, "---"};
+
+    Text text_lbl_max_mode{{0, 36, 114, 16}, "RX Mode:"};
+    Text text_max_mode{{116, 36, 124, 16}, "---"};
+
+    Text text_lbl_rf_path{{0, 52, 114, 16}, "RF Path:"};
+    Text text_rf_path{{116, 52, 124, 16}, "---"};
+
+    Text text_lbl_rf_amp{{0, 68, 114, 16}, "RF Amp:"};
+    Text text_rf_amp{{116, 68, 124, 16}, "---"};
+
+    Text text_lbl_lna{{0, 84, 114, 16}, "LNA Gain:"};
+    Text text_lna{{116, 84, 124, 16}, "---"};
+
+    Text text_lbl_vga{{0, 100, 114, 16}, "VGA Gain:"};
+    Text text_vga{{116, 100, 124, 16}, "---"};
+
+    Text text_lbl_fpga_decim{{0, 116, 114, 16}, "FPGA Decim:"};
+    Text text_fpga_decim{{116, 116, 124, 16}, "---"};
+
+    Text text_status{{0, 140, 240, 32}, ""};
+
+    Button button_refresh{{8, 280, 72, 24}, "Refresh"};
+    Button button_done{{168, 280, 64, 24}, "Done"};
+};
+#endif
+
+#ifdef PRALINE
+/* RFFC5072StatusView *************************************************/
+class RFFC5072StatusView : public View {
+   public:
+    RFFC5072StatusView(NavigationView& nav);
+    void focus() override;
+    std::string title() const override { return "RFFC5072 Status"; };
+
+   private:
+    NavigationView& nav_;
+    void refresh_status();
+
+    Text text_title{{0, 0, 240, 16}, "=== RFFC5072 (1st IF) ==="};
+
+    Text text_lbl_enabled{{0, 20, 114, 16}, "Status:"};
+    Text text_enabled{{116, 20, 124, 16}, "---"};
+
+    Text text_lbl_freq{{0, 36, 114, 16}, "LO Freq:"};
+    Text text_freq{{116, 36, 124, 16}, "---"};
+
+    Text text_lbl_path{{0, 52, 114, 16}, "Path:"};
+    Text text_path{{116, 52, 124, 16}, "---"};
+
+    Text text_lbl_mixer{{0, 68, 114, 16}, "Mixer:"};
+    Text text_mixer{{116, 68, 124, 16}, "---"};
+
+    Text text_lbl_r0{{0, 92, 114, 16}, "Reg 0:"};
+    Text text_r0{{116, 92, 124, 16}, "---"};
+
+    Text text_lbl_r1{{0, 108, 114, 16}, "Reg 1 (N):"};
+    Text text_r1{{116, 108, 124, 16}, "---"};
+
+    Text text_lbl_r2{{0, 124, 114, 16}, "Reg 2:"};
+    Text text_r2{{116, 124, 124, 16}, "---"};
+
+    Text text_lbl_decode{{0, 148, 240, 16}, "--- Decoded Values ---"};
+
+    Text text_lbl_n{{0, 168, 114, 16}, "N divider:"};
+    Text text_n{{116, 168, 124, 16}, "---"};
+
+    Text text_lbl_lodiv{{0, 184, 114, 16}, "LO divider:"};
+    Text text_lodiv{{116, 184, 124, 16}, "---"};
+
+    Text text_lbl_calc{{0, 200, 114, 16}, "Calc freq:"};
+    Text text_calc{{116, 200, 124, 16}, "---"};
+
+    Text text_status{{0, 224, 240, 32}, ""};
+
+    Button button_refresh{{8, 280, 72, 24}, "Refresh"};
+    Button button_done{{168, 280, 64, 24}, "Done"};
+};
+
+#ifdef PRALINE
+/* RFFCTuningDebugView *************************************************/
+class RFFCTuningDebugView : public View {
+   public:
+    RFFCTuningDebugView(NavigationView& nav);
+    void focus() override;
+    std::string title() const override { return "RFFC Tuning Debug"; };
+
+   private:
+    void refresh();
+
+    Text text_title{{0, 0, 240, 16}, "RFFC5072 Tuning Debug"};
+
+    Text text_lbl_called{{0, 18, 120, 16}, "Freq Set:"};
+    Text text_called{{122, 18, 118, 16}, "NO"};
+
+    Text text_lbl_req{{0, 38, 120, 16}, "Requested:"};
+    Text text_req{{122, 38, 118, 16}, "---"};
+
+    Text text_lbl_exp_n{{0, 56, 120, 16}, "Expected N:"};
+    Text text_exp_n{{122, 56, 118, 16}, "---"};
+
+    Text text_lbl_act_n{{0, 74, 120, 16}, "Actual N:"};
+    Text text_act_n{{122, 74, 118, 16}, "---"};
+
+    Text text_lbl_exp_div{{0, 92, 120, 16}, "Exp LO/Pres:"};
+    Text text_exp_div{{122, 92, 118, 16}, "---"};
+
+    Text text_lbl_act_div{{0, 110, 120, 16}, "Act LO/Pres:"};
+    Text text_act_div{{122, 110, 118, 16}, "---"};
+
+    Text text_lbl_calc{{0, 128, 120, 16}, "Calc LO freq:"};
+    Text text_calc{{122, 128, 118, 16}, "---"};
+
+    Text text_lbl_calc_lo{{0, 146, 120, 16}, "Calc input:"};
+    Text text_calc_lo{{122, 146, 118, 16}, "---"};
+
+    Text text_lbl_calc_vco{{0, 164, 120, 16}, "In Calc VCO:"};
+    Text text_calc_vco{{122, 164, 118, 16}, "---"};
+
+    Text text_lbl_vco{{0, 182, 120, 16}, "Calc VCO:"};
+    Text text_vco{{122, 182, 118, 16}, "---"};
+
+    Text text_lbl_n_q24{{0, 200, 120, 16}, "N (Q24):"};
+    Text text_n_q24{{122, 200, 118, 16}, "---"};
+
+    Text text_status{{0, 224, 240, 48}, ""};
+
+    Button button_refresh{{8, 280, 72, 24}, "Refresh"};
+    Button button_done{{168, 280, 64, 24}, "Done"};
+};
+
+#endif
+
+#endif
+
 class DebugPeripheralsMenuView : public BtnGridView {
    public:
     DebugPeripheralsMenuView(NavigationView& nav);

firmware/application/apps/ui_flash_utility.cpp

@@ -45,10 +45,15 @@ bool valid_firmware_file(std::filesystem::path::string_type path) {
     // test read of the whole file just to validate checksum (baseband flash code will re-read when flashing)
     auto result = firmware_file.open(path.c_str());
     if (!result.is_valid()) {
+        uint64_t file_size = firmware_file.size();
+        if (portapack::device_type == portapack::DeviceType::DEV_PORTAPACK && file_size > 1 * 1024 * 1024) {
+            // Portapack firmware files must not be larger than 1MB
+            return false;
+        }
+        // May need to add a check to portarf and portarf pro too.
         checksum = 0;
-        for (uint32_t offset = 0; offset < FLASH_ROM_SIZE; offset += sizeof(read_buffer)) {
+        for (uint64_t offset = 0; offset < FLASH_ROM_SIZE && offset < file_size; offset += sizeof(read_buffer)) {
             auto readResult = firmware_file.read(&read_buffer, sizeof(read_buffer));
-
             if ((!readResult) || (readResult.value() != sizeof(read_buffer))) {
                 // File was smaller than 1MB:
                 // If version is such that the file SHOULD have been 1MB, call it a checksum error (otherwise say it's OK).

firmware/application/apps/ui_flash_utility.hpp

@@ -32,7 +32,9 @@
 #include "untar.hpp"
 #include <cstdint>
 
-#define FLASH_ROM_SIZE 1048576
+#include "../../flashsize.h"
+
+#define FLASH_ROM_SIZE (FLASH_SIZE_MB * 1024 * 1024)
 #define FLASH_STARTING_ADDRESS 0x00000000
 #define FLASH_EXPECTED_CHECKSUM 0x00000000
 #define FLASH_CHECKSUM_ERROR 0xFFFFFFFF

firmware/application/apps/ui_looking_glass_app.cpp

@@ -69,7 +69,7 @@ void GlassView::manage_beep_audio() {
     }
 }
 
-void GlassView::get_max_power(const ChannelSpectrum& spectrum, uint8_t bin, uint8_t& max_power) {
+void GlassView::get_max_power(const ChannelSpectrum& spectrum, uint16_t bin, uint8_t& max_power) {
     if (mode == LOOKING_GLASS_SINGLEPASS) {
         // <20MHz spectrum mode
         if (bin < 120) {
@@ -91,7 +91,7 @@ void GlassView::get_max_power(const ChannelSpectrum& spectrum, uint8_t bin, uint
     }
 }
 
-rf::Frequency GlassView::get_freq_from_bin_pos(uint8_t pos) {
+rf::Frequency GlassView::get_freq_from_bin_pos(uint16_t pos) {
     rf::Frequency freq_at_pos = 0;
     if (mode == LOOKING_GLASS_SINGLEPASS) {
         // starting from the middle, minus 8 ignored bin on each side. Since pos is [-120,120] after the (pos - 120), it's divided by screen_width(240)/2 => 120
@@ -101,7 +101,14 @@ rf::Frequency GlassView::get_freq_from_bin_pos(uint8_t pos) {
     return freq_at_pos;
 }
 
-void GlassView::on_marker_change() {
+void GlassView::on_marker_change(int8_t delta) {
+    if ((marker_pixel_index + delta) < 0)
+        marker_pixel_index = marker_pixel_index + delta + screen_width;
+    else if ((marker_pixel_index + delta) > screen_width)
+        marker_pixel_index = marker_pixel_index + delta - screen_width;
+    else
+        marker_pixel_index = marker_pixel_index + delta;
+
     marker = get_freq_from_bin_pos(marker_pixel_index);
     field_marker.set_text(to_string_short_freq(marker));
     plot_marker(marker_pixel_index);  // Refresh marker on screen
@@ -200,7 +207,7 @@ void GlassView::on_channel_spectrum(const ChannelSpectrum& spectrum) {
     baseband::spectrum_streaming_stop();
     // Convert bins of this spectrum slice into a representative max_power and when enough, into pixels
     // we actually need screen_width (240) of those bins
-    for (uint8_t bin = 0; bin < bin_length; bin++) {
+    for (uint16_t bin = 0; bin < bin_length; bin++) {
         get_max_power(spectrum, bin, max_power);
         if (max_power > range_max_power)
             range_max_power = max_power;
@@ -208,7 +215,7 @@ void GlassView::on_channel_spectrum(const ChannelSpectrum& spectrum) {
         if (bin == 119) {
             uint8_t next_max_power = 0;
             get_max_power(spectrum, bin + 1, next_max_power);
-            for (uint8_t it = 0; it < ignore_dc; it++) {
+            for (uint16_t it = 0; it < ignore_dc; it++) {
                 uint8_t med_max_power = (max_power + next_max_power) / 2;  // due to the way process_bins works we have to keep resetting the color
                 if (process_bins(&med_max_power) == true)
                     return;  // new line signaled, return
@@ -285,7 +292,7 @@ void GlassView::on_range_changed() {
     max_power = 0;
     bins_hz_size = 0;
 
-    on_marker_change();
+    on_marker_change(0);
     update_range_field();
 
     // set the sample rate and bandwidth
@@ -298,8 +305,8 @@ void GlassView::on_range_changed() {
     receiver_model.set_target_frequency(f_center);  // tune rx for this slice
 }
 
-void GlassView::plot_marker(uint8_t pos) {
-    uint8_t shift_y = 0;
+void GlassView::plot_marker(uint16_t pos) {
+    uint16_t shift_y = 0;
     if (live_frequency_view > 0)  // plot one line down when in live view
     {
         shift_y = 16;
@@ -381,9 +388,10 @@ GlassView::GlassView(
                   &button_beep_squelch,
                   &field_marker,
                   &field_trigger,
+                  &button_marker_minus,
+                  &button_marker_plus,
                   &button_jump,
                   &button_rst,
-                  &field_rx_iq_phase_cal,
                   &freq_stats});
 
     load_presets();  // Load available presets from TXT files (or default).
@@ -491,13 +499,7 @@ GlassView::GlassView(
     range_presets.set_selected_index(preset_index);
 
     field_marker.on_encoder_change = [this](TextField&, EncoderEvent delta) {
-        if ((marker_pixel_index + delta) < 0)
-            marker_pixel_index = marker_pixel_index + delta + screen_width;
-        else if ((marker_pixel_index + delta) > screen_width)
-            marker_pixel_index = marker_pixel_index + delta - screen_width;
-        else
-            marker_pixel_index = marker_pixel_index + delta;
-        on_marker_change();
+        on_marker_change(delta);
     };
 
     field_marker.on_select = [this](TextField&) {
@@ -516,6 +518,14 @@ GlassView::GlassView(
         update_range_field();
     };
 
+    button_marker_minus.on_select = [this](Button&) {
+        on_marker_change(-1);
+    };
+
+    button_marker_plus.on_select = [this](Button&) {
+        on_marker_change(1);
+    };
+
     button_jump.on_select = [this](Button&) {
         // Launch Audio with peak frequency.
         launch_audio(max_freq_hold);
@@ -525,13 +535,6 @@ GlassView::GlassView(
         reset_live_view();
     };
 
-    field_rx_iq_phase_cal.set_range(0, hackrf_r9 ? 63 : 31);                 // max2839 has 6 bits [0..63],  max2837 has 5 bits [0..31]
-    field_rx_iq_phase_cal.set_value(get_spec_iq_phase_calibration_value());  // using  accessor function of AnalogAudioView to read iq_phase_calibration_value from rx_audio.ini
-    field_rx_iq_phase_cal.on_change = [this](int32_t v) {
-        set_spec_iq_phase_calibration_value(v);  // using  accessor function of AnalogAudioView to write inside SPEC submenu, register value to max283x and save it to rx_audio.ini
-    };
-    set_spec_iq_phase_calibration_value(get_spec_iq_phase_calibration_value());  // initialize iq_phase_calibration in radio
-
     display.scroll_set_area(109, screen_height - 1);  // Restart scroll on the correct coordinates
 
     // trigger:
@@ -581,15 +584,6 @@ void GlassView::on_freqchg(int64_t freq) {
     on_range_changed();
 }
 
-uint8_t GlassView::get_spec_iq_phase_calibration_value() {  // define accessor functions inside AnalogAudioView to read & write real iq_phase_calibration_value
-    return iq_phase_calibration_value;
-}
-
-void GlassView::set_spec_iq_phase_calibration_value(uint8_t cal_value) {  // define accessor functions
-    iq_phase_calibration_value = cal_value;
-    radio::set_rx_max283x_iq_phase_calibration(iq_phase_calibration_value);
-}
-
 void GlassView::load_presets() {
     File presets_file;
     auto error = presets_file.open(looking_glass_dir / u"PRESETS.TXT");

firmware/application/apps/ui_looking_glass_app.hpp

@@ -66,9 +66,6 @@ class GlassView : public View {
     void on_hide() override;
     void focus() override;
 
-    uint8_t get_spec_iq_phase_calibration_value();
-    void set_spec_iq_phase_calibration_value(uint8_t cal_value);
-
    private:
     NavigationView& nav_;
     Gradient gradient{};
@@ -80,11 +77,10 @@ class GlassView : public View {
     uint8_t filter_index = 0;  // OFF
     uint8_t trigger = 32;
     uint8_t mode = LOOKING_GLASS_FASTSCAN;
-    uint8_t live_frequency_view = 0;         // Spectrum
-    uint8_t live_frequency_integrate = 3;    // Default (3 * old value + new_value) / 4
-    uint8_t iq_phase_calibration_value{15};  // initial default RX IQ phase calibration value , used for both max2837 & max2839
-    int32_t beep_squelch = 20;               // range from -100 to +20, >=20 disabled
-    bool beep_enabled = false;               // activate on bip button click
+    uint8_t live_frequency_view = 0;       // Spectrum
+    uint8_t live_frequency_integrate = 3;  // Default (3 * old value + new_value) / 4
+    int32_t beep_squelch = 20;             // range from -100 to +20, >=20 disabled
+    bool beep_enabled = false;             // activate on bip button click
     app_settings::SettingsManager settings_{
         "rx_glass"sv,
         app_settings::Mode::RX,
@@ -97,7 +93,6 @@ class GlassView : public View {
             {"scan_mode"sv, &mode},
             {"freq_view"sv, &live_frequency_view},
             {"freq_integrate"sv, &live_frequency_integrate},
-            {"iq_phase_calibration"sv, &iq_phase_calibration_value},  // we are saving and restoring that CAL from Settings.
             {"beep_squelch"sv, &beep_squelch},
             {"beep_enabled"sv, &beep_enabled},
         }};
@@ -116,9 +111,9 @@ class GlassView : public View {
     void update_min(int32_t v);
     void update_max(int32_t v);
     void update_range_field();
-    void get_max_power(const ChannelSpectrum& spectrum, uint8_t bin, uint8_t& max_power);
-    rf::Frequency get_freq_from_bin_pos(uint8_t pos);
-    void on_marker_change();
+    void get_max_power(const ChannelSpectrum& spectrum, uint16_t bin, uint8_t& max_power);
+    rf::Frequency get_freq_from_bin_pos(uint16_t pos);
+    void on_marker_change(int8_t delta);
     void retune();
     bool process_bins(uint8_t* powerlevel);
     void on_channel_spectrum(const ChannelSpectrum& spectrum);
@@ -128,7 +123,7 @@ class GlassView : public View {
     void on_range_changed();
     void reset_live_view();
     void add_spectrum_pixel(uint8_t power);
-    void plot_marker(uint8_t pos);
+    void plot_marker(uint16_t pos);
     void load_presets();
     void populate_presets();
     void launch_audio(rf::Frequency center_freq);
@@ -138,7 +133,7 @@ class GlassView : public View {
     rf::Frequency f_center_ini{0};
 
     rf::Frequency marker{0};
-    uint8_t marker_pixel_index{0};
+    uint16_t marker_pixel_index{0};
     rf::Frequency marker_pixel_step{0};
 
     // Size of one spectrum bin in Hz.
@@ -173,8 +168,7 @@ class GlassView : public View {
         {{0, UI_POS_Y(0)}, "MIN:     MAX:     LNA   VGA  ", Theme::getInstance()->fg_light->foreground},
         {{0, 1 * 16}, "RANGE:       FILTER:     AMP:", Theme::getInstance()->fg_light->foreground},
         {{0, 2 * 16}, "P:", Theme::getInstance()->fg_light->foreground},
-        {{0, 3 * 16}, "MARKER:          MHz RXIQCAL", Theme::getInstance()->fg_light->foreground},
-        //{{0, 4 * 16}, "RES:    STEPS:", Theme::getInstance()->fg_light->foreground}};
+        {{0, 3 * 16}, "MARKER( / ):          MHz", Theme::getInstance()->fg_light->foreground},
         {{0, 4 * 16}, "RES:     VOL:", Theme::getInstance()->fg_light->foreground}};
 
     NumberField field_frequency_min{
@@ -223,16 +217,16 @@ class GlassView : public View {
         ""};
 
     TextField field_marker{
-        {7 * 8, 3 * 16, 9 * 8, 16},
+        {12 * 8, 3 * 16, 9 * 8, 16},
         ""};
 
-    NumberField field_rx_iq_phase_cal{
-        {28 * 8, 3 * 16},
-        2,
-        {0, 63},  // 5 or 6 bits IQ CAL phase adjustment (range updated later)
-        1,
-        ' ',
-    };
+    Button button_marker_minus{
+        {7 * 8, 3 * 16 + 4, 1 * 8, 1 * 8},
+        "-"};
+
+    Button button_marker_plus{
+        {9 * 8, 3 * 16 + 4, 1 * 8, 1 * 8},
+        "+"};
 
     NumberField field_trigger{
         {4 * 8, 4 * 16},

firmware/application/apps/ui_mictx.cpp

@@ -350,6 +350,12 @@ MicTXView::MicTXView(
                   &tx_button,
                   &tx_icon});
 
+    // disable key repeat on select
+    initial_switch_config_ = get_switches_repeat_config();
+    SwitchesState config = initial_switch_config_;
+    config[toUType(Switch::Sel)] = false;
+    set_switches_repeat_config(config);
+
     set_rxbw_options();
     set_rxbw_defaults(settings_.loaded());
 
@@ -640,6 +646,9 @@ MicTXView::MicTXView(
 }
 
 MicTXView::~MicTXView() {
+    // restore select key repeat mode
+    set_switches_repeat_config(initial_switch_config_);
+
     audio::input::stop();
     if (rx_enabled) {  // Also turn off both (audio rx if enabled, and disable  mic_loop to HP)
         rxaudio(false);

firmware/application/apps/ui_mictx.hpp

@@ -90,6 +90,9 @@ class MicTXView : public View {
         sampling_rate /* sampling rate */
     };
 
+    // structure used to control key repeat
+    SwitchesState initial_switch_config_{};
+
     enum Mic_Modulation : uint32_t {
         MIC_MOD_NFM = 0,
         MIC_MOD_WFM = 1,

firmware/application/apps/ui_recon.cpp

@@ -1086,8 +1086,8 @@ void ReconView::on_statistics_update(const ChannelStatistics& statistics) {
                     if (stepper < 0) stepper++;
                     if (stepper > 0) stepper--;
                 }  // if( recon || stepper != 0 || index_stepper != 0 )
-            }      // if (frequency_list.size() > 0 )
-        }          /* on_statistics_updates */
+            }  // if (frequency_list.size() > 0 )
+        } /* on_statistics_updates */
     }
     handle_retune();
     recon_redraw();

firmware/application/apps/ui_settings.cpp

@@ -309,6 +309,39 @@ SetFrequencyCorrectionModel SetRadioView::form_collect() {
     };
 }
 
+/* SetTXLimitView ************************************/
+
+SetTXLimitView::SetTXLimitView(NavigationView& nav) {
+    add_children({
+        &labels,
+        &tx_gain_max_db,
+        &tx_disable_switch,
+        &tx_amp_disable_switch,
+        &button_save,
+        &button_cancel,
+    });
+
+    tx_disable_switch.set_value(pmem::config_tx_disabled());
+    tx_amp_disable_switch.set_value(pmem::config_tx_amp_disabled());
+    tx_gain_max_db.set_value(pmem::config_tx_gain_max_db());
+
+    button_save.on_select = [&nav, this](Button&) {
+        pmem::set_config_tx_disabled(tx_disable_switch.value());
+        pmem::set_config_tx_amp_disabled(tx_amp_disable_switch.value());
+        pmem::set_config_tx_gain_max_db(tx_gain_max_db.value());
+        send_system_refresh();
+        nav.pop();
+    };
+
+    button_cancel.on_select = [&nav, this](Button&) {
+        nav.pop();
+    };
+}
+
+void SetTXLimitView::focus() {
+    button_save.focus();
+}
+
 /* SetUIView *********************************************/
 
 SetUIView::SetUIView(NavigationView& nav) {
@@ -1107,6 +1140,7 @@ void SettingsMenuView::on_populate() {
         {"Freq. Correct", ui::Color::dark_cyan(), &bitmap_icon_options_radio, [this]() { nav_.push<SetFrequencyCorrectionView>(); }},
         {"P.Memory Mgmt", ui::Color::dark_cyan(), &bitmap_icon_memory, [this]() { nav_.push<SetPersistentMemoryView>(); }},
         {"Radio", ui::Color::dark_cyan(), &bitmap_icon_options_radio, [this]() { nav_.push<SetRadioView>(); }},
+        {"TX Limit", ui::Color::dark_cyan(), &bitmap_icon_options_radio, [this]() { nav_.push<SetTXLimitView>(); }},
         {"SD Card", ui::Color::dark_cyan(), &bitmap_icon_sdcard, [this]() { nav_.push<SetSDCardView>(); }},
         {"User Interface", ui::Color::dark_cyan(), &bitmap_icon_options_ui, [this]() { nav_.push<SetUIView>(); }},
         {"Display", ui::Color::dark_cyan(), &bitmap_icon_brightness, [this]() { nav_.push<SetDisplayView>(); }},

firmware/application/apps/ui_settings.hpp

@@ -264,6 +264,51 @@ class SetRadioView : public View {
     SetFrequencyCorrectionModel form_collect();
 };
 
+class SetTXLimitView : public View {
+   public:
+    SetTXLimitView(NavigationView& nav);
+
+    void focus() override;
+
+    std::string title() const override { return "TX Limit"; };
+
+   private:
+    Labels labels{
+        {{1 * 8, 1 * 16}, "Limits RF TX Gain", Theme::getInstance()->fg_light->foreground},
+        {{1 * 8, 2 * 16}, "(This may affect", Theme::getInstance()->fg_light->foreground},
+        {{1 * 8, 3 * 16}, "all applications.)", Theme::getInstance()->fg_light->foreground},
+        {{2 * 8, 12 * 16}, "TX Max Gain:", Theme::getInstance()->fg_light->foreground},
+
+    };
+
+    Checkbox tx_disable_switch{
+        {1 * 8, 6 * 16},
+        23,
+        "Disable TX"};
+
+    Checkbox tx_amp_disable_switch{
+        {1 * 8, 8 * 16},
+        23,
+        "Disable TX Amp"};
+
+    NumberField tx_gain_max_db{
+        {20 * 8, 12 * 16},
+        6,
+        {0, 47},
+        1,
+        ' ',
+    };
+
+    Button button_save{
+        {UI_POS_X_CENTER(12) - UI_POS_WIDTH(8), UI_POS_Y_BOTTOM(4), UI_POS_WIDTH(12), UI_POS_HEIGHT(2)},
+        "Save"};
+
+    Button button_cancel{
+        {UI_POS_X_CENTER(16) + UI_POS_WIDTH(8), UI_POS_Y_BOTTOM(4), UI_POS_WIDTH(12), UI_POS_HEIGHT(2)},
+        "Cancel",
+    };
+};
+
 using portapack::persistent_memory::backlight_timeout_t;
 
 class SetUIView : public View {

firmware/application/apps/ui_sonde.cpp

@@ -30,11 +30,10 @@
 #include "portapack.hpp"
 #include <cstring>
 #include <stdio.h>
+#include "rtc_time.hpp"
 
 using namespace portapack;
 namespace pmem = portapack::persistent_memory;
-
-#include "string_format.hpp"
 #include "complex.hpp"
 
 void SondeLogger::on_packet(const sonde::Packet& packet) {
@@ -65,6 +64,8 @@ SondeView::SondeView(NavigationView& nav)
                   &text_frame,
                   &text_temp,
                   &text_humid,
+                  &text_press,
+                  &text_vspeed,
                   &geopos,
                   &button_see_qr,
                   &button_see_map});
@@ -107,7 +108,7 @@ SondeView::SondeView(NavigationView& nav)
 
     logger = std::make_unique<SondeLogger>();
     if (logger)
-        logger->append(logs_dir / u"SONDE.TXT");
+        logger->append(logs_dir / u"SONDE_" + to_string_timestamp(rtc_time::now()) + u".TXT");
 
     if (pmem::beep_on_packets()) {
         audio::set_rate(audio::Rate::Hz_24000);
@@ -155,7 +156,7 @@ void SondeView::on_packet(const sonde::Packet& packet) {
         sonde_id = packet.serial_number();  // used also as tag on the geomap
         text_serial.set(sonde_id);
 
-        text_timestamp.set(to_string_timestamp(packet.received_at()));
+        text_timestamp.set(to_string_datetime(packet.received_at(), TimeFormat::YMDHMS));
 
         text_voltage.set(unit_auto_scale(packet.battery_voltage(), 2, 2) + "V");
 
@@ -163,21 +164,42 @@ void SondeView::on_packet(const sonde::Packet& packet) {
 
         temp_humid_info = packet.get_temp_humid();
         if (temp_humid_info.humid != 0) {
-            double decimals = abs(get_decimals(temp_humid_info.humid, 10, true));
-            text_humid.set(to_string_dec_int((int)temp_humid_info.humid) + "." + to_string_dec_uint(decimals, 1) + "%");
+            text_humid.set(to_string_decimal(temp_humid_info.humid, 1) + "%");
         }
 
         if (temp_humid_info.temp != 0) {
-            double decimals = abs(get_decimals(temp_humid_info.temp, 10, true));
-            text_temp.set(to_string_dec_int((int)temp_humid_info.temp) + "." + to_string_dec_uint(decimals, 1) + STR_DEGREES_C);
+            text_temp.set(to_string_decimal(temp_humid_info.temp, 1) + STR_DEGREES_C);
+        }
+
+        if (packet.get_pressure() != 0) {
+            text_press.set(to_string_decimal(packet.get_pressure(), 1) + " hPa");
         }
 
         gps_info = packet.get_GPS_data();
 
-        geopos.set_altitude(gps_info.alt);
-        geopos.set_lat(gps_info.lat);
-        geopos.set_lon(gps_info.lon);
-
+        if (last_timestamp_update_ != 0 && last_altitude_ != 0) {
+            // calculate speeds
+            float vspeed = 0;
+            time_t currpackettime = rtc_time::rtcToUnixUTC(packet.received_at());
+            int32_t time_diff = (currpackettime - last_timestamp_update_);
+            if (time_diff >= 10) {  // update only every 10 seconds
+                vspeed = (static_cast<int>(gps_info.alt) - static_cast<int>(last_altitude_)) / (float)time_diff;
+                last_timestamp_update_ = currpackettime;
+                last_altitude_ = gps_info.alt;
+                text_vspeed.set(to_string_decimal(vspeed, 1) + " m/s");
+            }
+        } else {  // save first valid packet time + altitude
+            last_timestamp_update_ = rtc_time::rtcToUnixUTC(packet.received_at());
+            last_altitude_ = geopos.altitude();
+        }
+        if (gps_info.is_valid()) {  // only update when valid, to prevent flashing
+            geopos.set_altitude(gps_info.alt);
+            geopos.set_lat(gps_info.lat);
+            geopos.set_lon(gps_info.lon);
+            if (geomap_view_) {
+                geomap_view_->update_position(gps_info.lat, gps_info.lon, 400, gps_info.alt, 0);
+            }
+        }
         if (logger && logging) {
             logger->on_packet(packet);
         }

firmware/application/apps/ui_sonde.hpp

@@ -30,6 +30,7 @@
 #include "ui_rssi.hpp"
 #include "ui_qrcode.hpp"
 #include "ui_geomap.hpp"
+#include "string_format.hpp"
 
 #include "event_m0.hpp"
 
@@ -94,32 +95,33 @@ class SondeView : public View {
     // AudioOutput audio_output { };
 
     Labels labels{
-        {{4 * 8, 2 * 16}, "Type:", Theme::getInstance()->fg_light->foreground},
-        {{6 * 8, 3 * 16}, "ID:", Theme::getInstance()->fg_light->foreground},
-        {{UI_POS_X(0), 4 * 16}, "DateTime:", Theme::getInstance()->fg_light->foreground},
+        {{UI_POS_X(4), UI_POS_Y(2)}, "Type:", Theme::getInstance()->fg_light->foreground},
+        {{UI_POS_X(6), UI_POS_Y(3)}, "ID:", Theme::getInstance()->fg_light->foreground},
+        {{UI_POS_X(0), UI_POS_Y(4)}, "DateTime:", Theme::getInstance()->fg_light->foreground},
 
-        {{3 * 8, 5 * 16}, "Vbatt:", Theme::getInstance()->fg_light->foreground},
-        {{3 * 8, 6 * 16}, "Frame:", Theme::getInstance()->fg_light->foreground},
-        {{4 * 8, 7 * 16}, "Temp:", Theme::getInstance()->fg_light->foreground},
-        {{UI_POS_X(0), 8 * 16}, "Humidity:", Theme::getInstance()->fg_light->foreground}};
+        {{UI_POS_X(3), UI_POS_Y(5)}, "Vbatt:", Theme::getInstance()->fg_light->foreground},
+        {{UI_POS_X(3), UI_POS_Y(6)}, "Frame:", Theme::getInstance()->fg_light->foreground},
+        {{UI_POS_X(4), UI_POS_Y(7)}, "Temp:", Theme::getInstance()->fg_light->foreground},
+        {{UI_POS_X(0), UI_POS_Y(8)}, "Humidity:", Theme::getInstance()->fg_light->foreground},
+        {{UI_POS_X(0), UI_POS_Y(9)}, "Pressure:", Theme::getInstance()->fg_light->foreground},
+        {{UI_POS_X(2), UI_POS_Y(10)}, "VSpeed:", Theme::getInstance()->fg_light->foreground}};
 
     RxFrequencyField field_frequency{
-        {UI_POS_X(0), 0 * 8},
+        {UI_POS_X(0), UI_POS_Y(0)},
         nav_};
 
     RFAmpField field_rf_amp{
-        {13 * 8, UI_POS_Y(0)}};
-
+        {UI_POS_X(13), UI_POS_Y(0)}};
     LNAGainField field_lna{
-        {15 * 8, UI_POS_Y(0)}};
+        {UI_POS_X(15), UI_POS_Y(0)}};
 
     VGAGainField field_vga{
-        {18 * 8, UI_POS_Y(0)}};
+        {UI_POS_X(18), UI_POS_Y(0)}};
 
     RSSI rssi{
-        {21 * 8, 0, UI_POS_WIDTH_REMAINING(24), 4}};
+        {UI_POS_X(21), UI_POS_Y(0), UI_POS_WIDTH_REMAINING(24), 4}};
     Channel channel{
-        {21 * 8, 5, UI_POS_WIDTH_REMAINING(24), 4},
+        {UI_POS_X(21), UI_POS_Y(0) + 5, UI_POS_WIDTH_REMAINING(24), 4},
     };
 
     AudioVolumeField field_volume{
@@ -136,47 +138,57 @@ class SondeView : public View {
         "CRC"};
 
     Text text_signature{
-        {9 * 8, 2 * 16, 10 * 8, 16},
+        {UI_POS_X(9), UI_POS_Y(2), UI_POS_WIDTH_REMAINING(10), UI_POS_HEIGHT(1)},
         "..."};
 
     Text text_serial{
-        {9 * 8, 3 * 16, 11 * 8, 16},
+        {UI_POS_X(9), UI_POS_Y(3), UI_POS_WIDTH_REMAINING(10), UI_POS_HEIGHT(1)},
         "..."};
 
     Text text_timestamp{
-        {9 * 8, 4 * 16, 11 * 8, 16},
+        {UI_POS_X(9), UI_POS_Y(4), UI_POS_WIDTH_REMAINING(9), UI_POS_HEIGHT(1)},
         "..."};
 
     Text text_voltage{
-        {9 * 8, 5 * 16, 10 * 8, 16},
+        {UI_POS_X(9), UI_POS_Y(5), UI_POS_WIDTH(10), UI_POS_HEIGHT(1)},
         "..."};
 
     Text text_frame{
-        {9 * 8, 6 * 16, 10 * 8, 16},
+        {UI_POS_X(9), UI_POS_Y(6), UI_POS_WIDTH(10), UI_POS_HEIGHT(1)},
         "..."};
 
     Text text_temp{
-        {9 * 8, 7 * 16, 10 * 8, 16},
+        {UI_POS_X(9), UI_POS_Y(7), UI_POS_WIDTH(10), UI_POS_HEIGHT(1)},
         "..."};
 
     Text text_humid{
-        {9 * 8, 8 * 16, 10 * 8, 16},
+        {UI_POS_X(9), UI_POS_Y(8), UI_POS_WIDTH(10), UI_POS_HEIGHT(1)},
+        "..."};
+
+    Text text_press{
+        {UI_POS_X(9), UI_POS_Y(9), UI_POS_WIDTH(10), UI_POS_HEIGHT(1)},
+        "..."};
+
+    Text text_vspeed{
+        {UI_POS_X(9), UI_POS_Y(10), UI_POS_WIDTH(10), UI_POS_HEIGHT(1)},
         "..."};
 
     GeoPos geopos{
-        {0, 12 * 16},
+        {UI_POS_X(0), UI_POS_Y(12)},
         GeoPos::alt_unit::METERS,
         GeoPos::spd_unit::HIDDEN};
 
     Button button_see_qr{
-        {UI_POS_X_CENTER(12) - UI_POS_WIDTH(8), UI_POS_Y_BOTTOM(4), 12 * 8, 3 * 16},
+        {UI_POS_X_CENTER(12) - UI_POS_WIDTH(8), UI_POS_Y_BOTTOM(4), UI_POS_WIDTH(12), UI_POS_HEIGHT(3)},
         "See QR"};
 
     Button button_see_map{
-        {UI_POS_X_CENTER(12) + UI_POS_WIDTH(8), UI_POS_Y_BOTTOM(4), 12 * 8, 3 * 16},
+        {UI_POS_X_CENTER(12) + UI_POS_WIDTH(8), UI_POS_Y_BOTTOM(4), UI_POS_WIDTH(12), UI_POS_HEIGHT(3)},
         "See on map"};
 
     GeoMapView* geomap_view_{nullptr};
+    time_t last_timestamp_update_{0};
+    uint32_t last_altitude_{0};
 
     MessageHandlerRegistration message_handler_packet{
         Message::ID::SondePacket,

firmware/application/apps/ui_subghzd.cpp

@@ -25,6 +25,9 @@
 #include "baseband_api.hpp"
 #include "string_format.hpp"
 #include "file_path.hpp"
+#include "ui_textentry.hpp"
+#include "../keeloq_keystore.hpp"
+#include "../keeloq_file.hpp"
 #include "portapack_persistent_memory.hpp"
 
 using namespace portapack;
@@ -56,6 +59,38 @@ void SubGhzDRecentEntryDetailView::update_data() {
     if (cnt != SD_NO_CNT) console.writeln("Cnt: " + to_string_dec_uint(cnt));
 
     if (entry_.data != 0) console.writeln("Data: " + to_string_hex(entry_.data));
+
+    if (entry_.sensorType == FPS_KEELOQ) {
+        console.writeln("Fix: " + to_string_hex(fix));
+        console.writeln("Encrypted: " + to_string_hex(encrypted));
+        console.writeln("Manufacturer: " + mf_name);
+
+        if (hop != SD_NO_HOP) {
+            console.writeln("Hop: " + to_string_hex(hop));
+
+            add_children({&button_save});
+
+            button_save.on_select = [this](const Button&) {
+                keeloq_file_buffer.clear();
+
+                text_prompt(
+                    nav_,
+                    keeloq_file_buffer,
+                    64,
+                    ENTER_KEYBOARD_MODE_ALPHA,
+                    [this](std::string& buffer) {
+                        KeeloqData params{
+                            mf_name,
+                            serial,
+                            cnt,
+                            btn};
+
+                        ensure_directory(keeloq_remotes_dir);
+                        write_keeloq_file(keeloq_remotes_dir / buffer + ".KEELOQ", params);
+                    });
+            };
+        }
+    }
 }
 
 SubGhzDRecentEntryDetailView::SubGhzDRecentEntryDetailView(NavigationView& nav, const SubGhzDRecentEntry& entry)
@@ -242,6 +277,8 @@ const char* SubGhzDView::getSensorTypeName(FPROTO_SUBGHZD_SENSOR type) {
             return "GangQi";
         case FPS_MARANTEC24:
             return "Marantec24";
+        case FPS_HOLTEKHT6P20B:
+            return "Holtek HT6P20B";
         case FPS_Invalid:
         default:
             return "Unknown";
@@ -301,6 +338,51 @@ void atomo_decrypt(uint8_t* buff) {
     }
 }
 
+bool SubGhzDRecentEntryDetailView::keeloq_check_decrypt(uint32_t decrypt) {
+    uint16_t end_serial = serial & 0xFF;
+
+    if ((decrypt >> 28 == btn) && (((((uint16_t)(decrypt >> 16)) & 0xFF) == end_serial) ||
+                                   ((((uint16_t)(decrypt >> 16)) & 0xFF) == 0))) {
+        cnt = decrypt & 0xFFFF;
+
+        return true;
+    }
+
+    return false;
+}
+
+bool SubGhzDRecentEntryDetailView::keeloq_check_decrypt_centurion(uint32_t decrypt) {
+    if ((decrypt >> 28 == btn) && ((((uint16_t)(decrypt >> 16)) & 0x3FF) == 0x1CE)) {
+        cnt = decrypt & 0xFFFF;
+
+        return true;
+    }
+
+    return false;
+}
+
+uint32_t keeloq_decrypt(const uint32_t data, const uint64_t key) {
+    uint32_t x = data, r;
+    for (r = 0; r < 528; r++)
+        x = (x << 1) ^ bit(x, 31) ^ bit(x, 15) ^ (uint32_t)bit(key, (15 - r) & 63) ^
+            bit(KEELOQ_NLF, g5(x, 0, 8, 19, 25, 30));
+    return x;
+}
+
+uint64_t keeloq_normal_learning(uint32_t data, const uint64_t key) {
+    uint32_t k1, k2;
+
+    data &= 0x0FFFFFFF;
+    data |= 0x20000000;
+    k1 = keeloq_decrypt(data, key);
+
+    data &= 0x0FFFFFFF;
+    data |= 0x60000000;
+    k2 = keeloq_decrypt(data, key);
+
+    return ((uint64_t)k2 << 32) | k1;
+}
+
 const uint32_t came_twee_magic_numbers_xor[15] = {
     0x0E0E0E00,
     0x1D1D1D11,
@@ -589,7 +671,57 @@ void SubGhzDRecentEntryDetailView::parseProtocol() {
     }
 
     if (entry_.sensorType == FPS_KEELOQ) {
-        // too many sub protocol versions, skipping. maybe in future when we'll have much more fw space
+        uint64_t data_rev = FProtoGeneral::subghz_protocol_blocks_reverse_key(entry_.data, 64);
+
+        btn = data_rev >> 60;
+        serial = (data_rev >> 32) & 0xFFFFFFF;
+        fix = data_rev >> 32;
+        encrypted = data_rev & 0xFFFFFFFF;
+
+        KeeloqKeystore keystore{};
+
+        const auto& keys = keystore.get_keys();
+
+        if (keys.empty()) {
+            return;
+        }
+
+        for (const auto& key : keys) {
+            switch (key.type) {
+                case KEELOQ_SIMPLE_LEARNING: {
+                    uint32_t decrypted = keeloq_decrypt(encrypted, key.key);
+
+                    if (keeloq_check_decrypt(decrypted)) {
+                        mf_name = key.mf_name;
+                        hop = decrypted;
+
+                        return;
+                    }
+
+                    break;
+                }
+
+                case KEELOQ_NORMAL_LEARNING: {
+                    uint64_t man = keeloq_normal_learning(fix, key.key);
+                    uint32_t decrypted = keeloq_decrypt(encrypted, man);
+
+                    if (key.mf_name == "Centurion" && keeloq_check_decrypt_centurion(decrypted)) {
+                        mf_name = "Centurion";
+                        hop = decrypted;
+
+                        return;
+                    } else if (keeloq_check_decrypt(decrypted)) {
+                        mf_name = key.mf_name;
+                        hop = decrypted;
+
+                        return;
+                    }
+
+                    break;
+                }
+            }
+        }
+
         return;
     }
 
@@ -756,5 +888,11 @@ void SubGhzDRecentEntryDetailView::parseProtocol() {
         btn = entry_.data & 0xf;
         return;
     }
+
+    if (entry_.sensorType == FPS_HOLTEKHT6P20B) {
+        serial = entry_.data >> 8;
+        btn = (entry_.data >> 4) & 0xF;
+        return;
+    }
 }
-}  // namespace ui
+}  // namespace ui

firmware/application/apps/ui_subghzd.hpp

@@ -25,7 +25,17 @@
 
 #define SD_NO_SERIAL 0xFFFFFFFF
 #define SD_NO_BTN 0xFF
-#define SD_NO_CNT 0xFF
+#define SD_NO_CNT 0xFFFFFFFF
+
+#define SD_NO_HOP 0xFFFFFFFF
+#define SD_NO_FIX 0xFFFFFFFF
+#define SD_NO_ENCRYPTED 0xFFFFFFFF
+
+#define bit(x, n) (((x) >> (n)) & 1)
+#define g5(x, a, b, c, d, e) \
+    (bit(x, a) + bit(x, b) * 2 + bit(x, c) * 4 + bit(x, d) * 8 + bit(x, e) * 16)
+
+#define KEELOQ_NLF 0x3A5C742E
 
 #include "ui.hpp"
 #include "ui_navigation.hpp"
@@ -191,6 +201,19 @@ class SubGhzDRecentEntryDetailView : public View {
     uint32_t cnt = SD_NO_CNT;
     uint32_t seed = 0;
 
+    // keeloq specific
+    std::string keeloq_file_buffer{};
+
+    uint32_t hop = SD_NO_HOP;
+    uint32_t fix = SD_NO_FIX;
+    uint32_t encrypted = SD_NO_ENCRYPTED;
+
+    std::string mf_name = "Unknown";
+
+    bool keeloq_check_decrypt(uint32_t decrypt);
+    bool keeloq_check_decrypt_centurion(uint32_t decrypt);
+    // end keeloq specific
+
     Text text_type{{UI_POS_X(0), 1 * 16, 15 * 8, 16}, "?"};
     Text text_id{{6 * 8, 2 * 16, 10 * 8, 16}, "?"};
 
@@ -207,6 +230,10 @@ class SubGhzDRecentEntryDetailView : public View {
         {screen_width - 96 - 4, screen_height - 32 - 12, 96, 32},
         "Done"};
 
+    Button button_save{
+        {4, screen_height - 32 - 12, 96, 32},
+        "Save"};
+
     void parseProtocol();
 };
 

firmware/application/baseband_api.cpp

@@ -52,12 +52,21 @@ static void send_message(const Message* const message) {
     creg::m0apptxevent::assert_event();
 
     if constexpr (check_for_message_hang) {
+#ifdef PRALINE
+        /* Timeout: ~3 seconds at typical clock speeds */
+        auto count = 200'000'000u;
+#else
         auto count = UINT32_MAX;
+#endif
         while (shared_memory.baseband_message && --count)
             /* spin */;
 
         if (count == 0)
+#ifdef PRALINE
+            chDbgPanic("BB Msg Timeout");
+#else
             chDbgPanic("Baseband Send Fail");
+#endif
     } else {
         while (shared_memory.baseband_message)
             /* spin */;
@@ -147,6 +156,19 @@ void set_sstv_data(const uint8_t vis_code, const uint32_t pixel_duration) {
     send_message(&message);
 }
 
+void set_sstvrx_data(const uint8_t code) {
+    const SSTVRXConfigureMessage message{
+        code};
+    send_message(&message);
+}
+
+void set_sstvrx_phase_slant(const int16_t phase, const int16_t slant) {
+    const SSTVRXPhaseSlantMessage message{
+        phase,
+        slant};
+    send_message(&message);
+}
+
 void set_afsk(const uint32_t baudrate, const uint32_t word_length, const uint32_t trigger_value, const bool trigger_word) {
     const AFSKRxConfigureMessage message{
         baudrate,
@@ -288,8 +310,8 @@ void set_fsk_data(const uint32_t stream_length, const uint32_t samples_per_bit,
     send_message(&message);
 }
 
-void set_pocsag() {
-    const POCSAGConfigureMessage message{};
+void set_pocsag(int8_t baud_config) {
+    const POCSAGConfigureMessage message{baud_config};
     send_message(&message);
 }
 
@@ -328,6 +350,11 @@ void set_noaaapt_config() {
     send_message(&message);
 }
 
+void set_flex_config() {
+    const FlexConfigureMessage message{};
+    send_message(&message);
+}
+
 void set_siggen_tone(const uint32_t tone) {
     const SigGenToneMessage message{
         TONES_F2D(tone, TONES_SAMPLERATE)};
@@ -350,6 +377,26 @@ void set_subghzd_config(uint8_t modulation = 0, uint32_t sampling_rate = 0) {
     send_message(&message);
 }
 
+void set_moreserx_config(uint8_t mode) {
+    const MorseRXConfigureMessage message{mode};
+    send_message(&message);
+}
+
+void set_morsetx_config(uint8_t mode, uint32_t tone, float fm_delta) {
+    const MorseTXConfigureMessage message{mode, tone, fm_delta};
+    send_message(&message);
+}
+
+void set_morsetx_key(bool key_down) {
+    const MorseTXkeyMessage message{key_down};
+    send_message(&message);
+}
+
+void set_bitstream_config(uint32_t deviation, uint8_t mode) {
+    const StreamTXConfigurationMessage message{deviation, mode};
+    send_message(&message);
+}
+
 static bool baseband_image_running = false;
 
 void run_image(const spi_flash::image_tag_t image_tag) {

firmware/application/baseband_api.hpp

@@ -74,13 +74,15 @@ void set_tone(const uint32_t index, const uint32_t delta, const uint32_t duratio
 void set_tones_config(const uint32_t bw, const uint32_t pre_silence, const uint16_t tone_count, const bool dual_tone, const bool audio_out);
 void kill_tone();
 void set_sstv_data(const uint8_t vis_code, const uint32_t pixel_duration);
+void set_sstvrx_data(const uint8_t code);
+void set_sstvrx_phase_slant(const int16_t phase, const int16_t slant);
 void set_audiotx_config(const uint32_t divider, const float deviation_hz, const float audio_gain, uint8_t audio_shift_bits_s16, uint8_t bits_per_sample, const uint32_t tone_key_delta, const bool am_enabled, const bool dsb_enabled, const bool usb_enabled, const bool lsb_enabled);
 void set_fifo_data(const int8_t* data);
 void set_pitch_rssi(int32_t avg, bool enabled);
 void set_afsk_data(const uint32_t afsk_samples_per_bit, const uint32_t afsk_phase_inc_mark, const uint32_t afsk_phase_inc_space, const uint8_t afsk_repeat, const uint32_t afsk_bw, const uint8_t symbol_count);
 void kill_afsk();
 void set_afsk(const uint32_t baudrate, const uint32_t word_length, const uint32_t trigger_value, const bool trigger_word);
-void set_fsk(const uint32_t samplesPerSymbol, const uint32_t syncWord, const uint8_t syncWordLength, const uint32_t preamble, const uint8_t preambleLength, uint16_t numDataBytes);
+void set_fsk(const uint8_t samplesPerSymbol, const uint32_t syncWord, const uint8_t syncWordLength, const uint32_t preamble, const uint8_t preambleLength, uint16_t numDataBytes);
 void set_aprs(const uint32_t baudrate);
 
 void set_btlerx(uint8_t channel_number);
@@ -91,7 +93,7 @@ void set_nrf(const uint32_t baudrate, const uint32_t word_length, const uint32_t
 void set_ook_data(const uint32_t stream_length, const uint32_t samples_per_bit, const uint8_t repeat, const uint32_t pause_symbols, const uint8_t de_bruijn_length = 0);
 void kill_ook();
 void set_fsk_data(const uint32_t stream_length, const uint32_t samples_per_bit, const uint32_t shift, const uint32_t progress_notice);
-void set_pocsag();
+void set_pocsag(int8_t baud_config = -1);
 void set_adsb();
 void set_jammer(const bool run, const jammer::JammerType type, const uint32_t speed);
 void set_rds_data(const uint16_t message_length);
@@ -100,8 +102,13 @@ void set_siggen_tone(const uint32_t tone);
 void set_siggen_config(const uint32_t bw, const uint32_t shape, const uint32_t duration);
 void set_spectrum_painter_config(const uint16_t width, const uint16_t height, bool update, int32_t bw);
 void set_subghzd_config(uint8_t modulation, uint32_t sampling_rate);
+void set_moreserx_config(uint8_t mode);
+void set_morsetx_config(uint8_t mode, uint32_t tone, float fm_delta);
+void set_morsetx_key(bool key_down);
 void set_wefax_config(uint8_t lpm, uint8_t ioc);
 void set_noaaapt_config();
+void set_flex_config();
+void set_bitstream_config(uint32_t deviation, uint8_t mode);  // mode 0 for am, 1 for 2fsk
 
 void request_roger_beep();
 void request_rssi_beep();

firmware/application/bitmap.hpp

@@ -4297,7 +4297,7 @@ static constexpr Bitmap bitmap_icon_tpms{
     {16, 16},
     bitmap_icon_tpms_data};
 
-static constexpr uint8_t bitmap_icon_tranceivers_data[] = {
+static constexpr uint8_t bitmap_icon_transceivers_data[] = {
     0x80,
     0x01,
     0xC0,
@@ -4331,9 +4331,9 @@ static constexpr uint8_t bitmap_icon_tranceivers_data[] = {
     0xFF,
     0xFF,
 };
-static constexpr Bitmap bitmap_icon_tranceivers{
+static constexpr Bitmap bitmap_icon_transceivers{
     {16, 16},
-    bitmap_icon_tranceivers_data};
+    bitmap_icon_transceivers_data};
 
 static constexpr uint8_t bitmap_icon_transmit_data[] = {
     0x80,

firmware/application/clock_manager.cpp

@@ -23,6 +23,7 @@
 
 #include "portapack_persistent_memory.hpp"
 #include "portapack_io.hpp"
+#include "portapack.hpp"
 
 #include "hackrf_hal.hpp"
 using namespace hackrf::one;
@@ -30,6 +31,14 @@ using namespace hackrf::one;
 #include "lpc43xx_cpp.hpp"
 using namespace lpc43xx;
 
+#ifdef PRALINE
+extern "C" {
+#include "fpga_bridge.h"
+}
+// Need access to ssp1_arbiter from radio namespace
+#include "radio.hpp"
+#endif
+
 constexpr uint32_t si5351_vco_f = 800000000;
 
 constexpr si5351::Inputs si5351_inputs{
@@ -54,6 +63,12 @@ constexpr si5351::PLL si5351_pll_xtal_25m{
     .c = 1,
 };
 constexpr auto si5351_pll_a_xtal_reg = si5351_pll_xtal_25m.reg(0);
+#ifdef PRALINE
+static_assert(si5351_pll_xtal_25m.f_vco() == si5351_vco_f, "PLL XTAL frequency wrong");
+static_assert(si5351_pll_xtal_25m.p1() == 3584, "PLL XTAL P1 wrong");
+static_assert(si5351_pll_xtal_25m.p2() == 0, "PLL XTAL P2 wrong");
+static_assert(si5351_pll_xtal_25m.p3() == 1, "PLL XTAL P3 wrong");
+#endif
 
 constexpr si5351::PLL si5351_pll_clkin_10m{
     .f_in = si5351_inputs.f_clkin_out(),
@@ -64,10 +79,12 @@ constexpr si5351::PLL si5351_pll_clkin_10m{
 constexpr auto si5351c_pll_b_clkin_reg = si5351_pll_clkin_10m.reg(1);
 constexpr auto si5351a_pll_a_clkin_reg = si5351_pll_clkin_10m.reg(0);
 
+#ifndef PRALINE
 static_assert(si5351_pll_xtal_25m.f_vco() == si5351_vco_f, "PLL XTAL frequency wrong");
 static_assert(si5351_pll_xtal_25m.p1() == 3584, "PLL XTAL P1 wrong");
 static_assert(si5351_pll_xtal_25m.p2() == 0, "PLL XTAL P2 wrong");
 static_assert(si5351_pll_xtal_25m.p3() == 1, "PLL XTAL P3 wrong");
+#endif
 
 static_assert(si5351_pll_clkin_10m.f_vco() == si5351_vco_f, "PLL CLKIN frequency wrong");
 static_assert(si5351_pll_clkin_10m.p1() == 9728, "PLL CLKIN P1 wrong");
@@ -101,6 +118,22 @@ constexpr si5351::MultisynthFractional si5351_ms_0_8m{
 };
 constexpr auto si5351c_ms_0_8m_reg = si5351_ms_0_8m.reg(clock_generator_output_og_codec);
 
+#ifdef PRALINE
+// Verify compile-time values for 8 MHz config
+static_assert(si5351_ms_0_8m.p1() == 5888, "MS0 8MHz P1 should be 5888 (0x1700)");
+static_assert(si5351_ms_0_8m.p2() == 0, "MS0 8MHz P2 should be 0");
+static_assert(si5351_ms_0_8m.p3() == 1, "MS0 8MHz P3 should be 1");
+static_assert(si5351_ms_0_8m.f_out() == 8000000, "MS0 should output 8 MHz");
+
+// Verify register array encoding
+static_assert(si5351c_ms_0_8m_reg[0] == 42, "MS0 base register should be 42");
+static_assert(si5351c_ms_0_8m_reg[1] == 0x00, "MS0 reg43 P3[15:8] should be 0x00");
+static_assert(si5351c_ms_0_8m_reg[2] == 0x01, "MS0 reg44 P3[7:0] should be 0x01");
+static_assert(si5351c_ms_0_8m_reg[3] == 0x10, "MS0 reg45 R_DIV should be 0x10");
+static_assert(si5351c_ms_0_8m_reg[4] == 0x17, "MS0 reg46 P1[15:8] should be 0x17");
+static_assert(si5351c_ms_0_8m_reg[5] == 0x00, "MS0 reg47 P1[7:0] should be 0x00");
+#endif
+
 constexpr si5351::MultisynthFractional si5351_ms_group{
     .f_src = si5351_vco_f,
     .a = 80, /* Don't care */
@@ -204,7 +237,11 @@ constexpr ClockControls si5351c_clock_control_common{{
 }};
 
 constexpr ClockControls si5351a_clock_control_common{{
+#ifndef PRALINE
     {ClockControl::ClockCurrentDrive::_6mA, ClockControl::ClockSource::MS_Self, ClockControl::ClockInvert::Normal, ClockControl::MultiSynthSource::PLLA, ClockControl::MultiSynthMode::Integer, ClockControl::ClockPowerDown::Power_Off},
+#else
+    {ClockControl::ClockCurrentDrive::_6mA, ClockControl::ClockSource::MS_Self, ClockControl::ClockInvert::Normal, ClockControl::MultiSynthSource::PLLA, ClockControl::MultiSynthMode::Fractional, ClockControl::ClockPowerDown::Power_Off},  // CLK0: MUST be Fractional for 8 MHz!
+#endif
     {ClockControl::ClockCurrentDrive::_4mA, ClockControl::ClockSource::MS_Self, ClockControl::ClockInvert::Normal, ClockControl::MultiSynthSource::PLLA, ClockControl::MultiSynthMode::Fractional, ClockControl::ClockPowerDown::Power_Off},
     {ClockControl::ClockCurrentDrive::_8mA, ClockControl::ClockSource::MS_Self, ClockControl::ClockInvert::Normal, ClockControl::MultiSynthSource::PLLA, ClockControl::MultiSynthMode::Integer, ClockControl::ClockPowerDown::Power_Off},
     {ClockControl::ClockCurrentDrive::_2mA, ClockControl::ClockSource::MS_Self, ClockControl::ClockInvert::Normal, ClockControl::MultiSynthSource::PLLA, ClockControl::MultiSynthMode::Integer, ClockControl::ClockPowerDown::Power_Off},
@@ -244,8 +281,7 @@ static void portapack_tcxo_enable() {
     /* Delay >10ms at 96MHz clock speed for reference oscillator to start. */
     /* Delay an additional 1ms (arbitrary) for the clock generator to detect a signal. */
     volatile uint32_t delay = 240000 + 24000;
-    while (delay--)
-        ;
+    while (delay--);
 }
 
 static void portapack_tcxo_disable() {
@@ -256,9 +292,48 @@ static void portapack_tcxo_disable() {
 using namespace hackrf::one;
 
 void ClockManager::init_clock_generator() {
+#ifdef PRALINE
+    // PRALINE: Configure clock input mux GPIO
+    // GPIO0_15 (clkin_ctrl) selects GP_CLKIN source:
+    //   0 = P1 connector (external)
+    //   1 = P22 (internal Si5351 CLK2)
+    constexpr GPIO gpio_clkin_ctrl = gpio[GPIO0_15];
+    gpio_clkin_ctrl.output();
+    gpio_clkin_ctrl.write(1);  // CLKIN_SIGNAL_P22 = 1 = internal Si5351 CLK2
+
+    // Also enable MCU clock gate (GPIO0_8)
+    gpio_r9_mcu_clk_en.output();
+    gpio_r9_mcu_clk_en.write(1);
+#else
+    // HackRF One r9: GPIO0_8 (mcu_clk_en) gates Si5351 CLK2/CLK7 to GP_CLKIN
+    if (hackrf_r9) {
+        gpio_r9_mcu_clk_en.output();
+        gpio_r9_mcu_clk_en.write(1);
+    }
+#endif
+
     clock_generator.reset();
     clock_generator.set_crystal_internal_load_capacitance(CrystalInternalLoadCapacitance::XTAL_CL_8pF);
     clock_generator.enable_fanout();
+
+#ifdef PRALINE
+    /* PRALINE has Si5351A (NOT Si5351C like HackRF One OG).
+     * Must use Si5351A configuration: PLLA only, no CLKIN support.
+     *
+     * IMPORTANT: Follow HackRF reference sequence:
+     * 1. Set PLL input sources
+     * 2. Configure PLL and multisynths
+     * 3. Set clock control registers (AFTER multisynths!)
+     * 4. Reset PLLs
+     * 5. Enable outputs
+     */
+    clock_generator.set_pll_input_sources(si5351a_pll_input_sources);
+
+    /* Skip MCU CLKIN setup and reference detection for PRALINE - not applicable */
+    reference = Reference{ReferenceSource::Xtal, 0};
+
+    /* Clock control will be set AFTER multisynth configuration - see below */
+#else
     clock_generator.set_pll_input_sources(hackrf_r9
                                               ? si5351a_pll_input_sources
                                               : si5351c_pll_input_sources);
@@ -299,7 +374,62 @@ void ClockManager::init_clock_generator() {
         si5351_clock_control_common[7].ms_src(ref_pll),
     }};
     clock_generator.set_clock_control(si5351_clock_control);
+#endif
 
+#ifdef PRALINE
+    /* PRALINE uses Si5351A with:
+     * CLK0 = AFE_CLK (codec/FPGA sample clock)
+     * CLK1 = SCT_CLK (FPGA timing clock at 2x sample rate)
+     * CLK4 = first IF (RFFC5072)
+     * CLK5 = second IF (MAX2831)
+     * Uses PLLA on XTAL only (no CLKIN support).
+     */
+
+    /* Step 1: Write PLL A configuration (800 MHz VCO from 25 MHz XTAL) */
+    /* Use single-byte writes to debug I2C issues */
+    {
+        const auto& pll_regs = si5351_pll_a_xtal_reg;
+        const uint8_t base_reg = pll_regs[0];
+        for (size_t i = 1; i < pll_regs.size(); i++) {
+            clock_generator.write_register(base_reg + i - 1, pll_regs[i]);
+        }
+    }
+
+    /* Step 2: Write multisynth configurations using single-byte writes */
+    clock_generator.write_ms_single_byte(0, si5351_ms_0_8m);  // MS0 = divider 50, r_div=1 for 8 MHz
+    clock_generator.write_ms_single_byte(1, si5351_ms_16m);   // MS1 = divider 50, r_div=0 for 16 MHz
+
+    /* CLK4 and CLK5 - use single-byte writes too */
+    {
+        const auto& ms4_regs = si5351c_ms_4_reg;
+        const uint8_t base_reg = ms4_regs[0];
+        for (size_t i = 1; i < ms4_regs.size(); i++) {
+            clock_generator.write_register(base_reg + i - 1, ms4_regs[i]);
+        }
+    }
+    {
+        const auto& ms5_regs = si5351c_ms_5_reg;
+        const uint8_t base_reg = ms5_regs[0];
+        for (size_t i = 1; i < ms5_regs.size(); i++) {
+            clock_generator.write_register(base_reg + i - 1, ms5_regs[i]);
+        }
+    }
+    clock_generator.write(si5351a_ms6_7_off_reg);  // MS6/7 off - short write is OK
+
+    /* Step 3: NOW set clock control registers (AFTER multisynths per HackRF reference) */
+    const auto ref_pll = ClockControl::MultiSynthSource::PLLA;
+    const ClockControls si5351_clock_control = ClockControls{{
+        si5351a_clock_control_common[0].ms_src(ref_pll),
+        si5351a_clock_control_common[1].ms_src(ref_pll),
+        si5351a_clock_control_common[2].ms_src(ref_pll),
+        si5351a_clock_control_common[3].ms_src(ref_pll),
+        si5351a_clock_control_common[4].ms_src(ref_pll),
+        si5351a_clock_control_common[5].ms_src(ref_pll),
+        si5351a_clock_control_common[6].ms_src(ref_pll),
+        si5351a_clock_control_common[7].ms_src(ref_pll),
+    }};
+    clock_generator.set_clock_control(si5351_clock_control);
+#else
     if (hackrf_r9) {
         const PLLReg pll_reg = (reference.source == ReferenceSource::Xtal)
                                    ? si5351_pll_a_xtal_reg
@@ -320,22 +450,45 @@ void ClockManager::init_clock_generator() {
         clock_generator.write(si5351c_ms_5_reg);
         clock_generator.write(si5351c_ms6_7_off_mcu_clkin_reg);
     }
+#endif
 
     clock_generator.reset_plls();
 
     // Wait for PLL(s) to lock.
+#ifdef PRALINE
+    // PRALINE: Wait for PLLA to lock (0x20 = LOL_A bit)
+    uint8_t device_status_mask = 0x20;
+    uint32_t pll_timeout = 100000;
+    while ((clock_generator.device_status() & device_status_mask) != 0 && pll_timeout > 0) {
+        pll_timeout--;
+    }
+    // Store PLL lock status for debugging
+    static volatile uint32_t pll_lock_timeout = pll_timeout;
+    (void)pll_lock_timeout;
+
+    // CRITICAL: Add delay to ensure Si5351 writes complete before I2C bus stops
+    chThdSleepMilliseconds(100);
+#else
+    // Wait for PLL(s) to lock - with timeout to prevent hang
     uint8_t device_status_mask = hackrf_r9
                                      ? 0x20
                                  : (ref_pll == ClockControl::MultiSynthSource::PLLB)
                                      ? 0x40
                                      : 0x20;
-    while ((clock_generator.device_status() & device_status_mask) != 0)
-        ;
+#ifndef PRALINE
+    while ((clock_generator.device_status() & device_status_mask) != 0);
+#else
+    uint32_t pll_timeout = 100000;
+    while ((clock_generator.device_status() & device_status_mask) != 0 && pll_timeout > 0) {
+        pll_timeout--;
+    }
+#endif
 
     clock_generator.set_clock_control(
         clock_generator_output_mcu_clkin,
         si5351_clock_control_common[clock_generator_output_mcu_clkin].ms_src(ref_pll).clk_pdn(ClockControl::ClockPowerDown::Power_On));
     clock_generator.enable_output(clock_generator_output_mcu_clkin);
+#endif
 }
 
 uint32_t ClockManager::measure_gp_clkin_frequency() {
@@ -377,8 +530,7 @@ ClockManager::Reference ClockManager::choose_reference() {
     if (hackrf_r9) {
         gpio_r9_clkin_en.write(1);
         volatile uint32_t delay = 240000 + 24000;
-        while (delay--)
-            ;
+        while (delay--);
     }
     const auto detected_reference = detect_reference_source();
 
@@ -403,6 +555,15 @@ void ClockManager::shutdown() {
 }
 
 void ClockManager::enable_codec_clocks() {
+#ifdef PRALINE
+    /* PRALINE: CLK0 (AFE_CLK) for codec/FPGA, CLK1 (SCT_CLK) for FPGA timing.
+     * Reference hackrf_core.c shows PRALINE needs both CLK0 and CLK1. */
+    clock_generator.enable_clock(clock_generator_output_og_codec); /* CLK0 */
+    clock_generator.enable_clock(clock_generator_output_og_cpld);  /* CLK1 */
+    clock_generator.enable_output_mask(
+        (1U << clock_generator_output_og_codec) |
+        (1U << clock_generator_output_og_cpld));
+#else
     if (hackrf_r9) {
         clock_generator.enable_clock(clock_generator_output_r9_sgpio);
     } else {
@@ -420,6 +581,7 @@ void ClockManager::enable_codec_clocks() {
         clock_generator.enable_output_mask(
             (1U << clock_generator_output_og_codec) | (1U << clock_generator_output_og_cpld) | (1U << clock_generator_output_og_sgpio));
     }
+#endif
 }
 
 void ClockManager::disable_codec_clocks() {
@@ -427,6 +589,14 @@ void ClockManager::disable_codec_clocks() {
      * be enabled for the output to come to rest at the state specified by
      * CLKx_DISABLE_STATE.
      */
+#ifdef PRALINE
+    /* PRALINE: CLK0 (AFE_CLK) and CLK1 (SCT_CLK) used for codec/FPGA */
+    clock_generator.disable_output_mask(
+        (1U << clock_generator_output_og_codec) |
+        (1U << clock_generator_output_og_cpld));
+    clock_generator.disable_clock(clock_generator_output_og_codec);
+    clock_generator.disable_clock(clock_generator_output_og_cpld);
+#else
     if (hackrf_r9) {
         clock_generator.disable_output_mask(1U << clock_generator_output_r9_sgpio);
         clock_generator.disable_clock(clock_generator_output_r9_sgpio);
@@ -437,9 +607,17 @@ void ClockManager::disable_codec_clocks() {
         clock_generator.disable_clock(clock_generator_output_og_cpld);
         clock_generator.disable_clock(clock_generator_output_og_sgpio);
     }
+#endif
 }
 
 void ClockManager::enable_if_clocks() {
+#ifdef PRALINE
+    /* PRALINE uses CLK4 (first IF) and CLK5 (second IF) like original HackRF One */
+    clock_generator.enable_clock(clock_generator_output_og_first_if);
+    clock_generator.enable_output_mask(1U << clock_generator_output_og_first_if);
+    clock_generator.enable_clock(clock_generator_output_og_second_if);
+    clock_generator.enable_output_mask(1U << clock_generator_output_og_second_if);
+#else
     if (hackrf_r9) {
         clock_generator.enable_clock(clock_generator_output_r9_if);
         clock_generator.enable_output_mask(1U << clock_generator_output_r9_if);
@@ -449,9 +627,16 @@ void ClockManager::enable_if_clocks() {
         clock_generator.enable_clock(clock_generator_output_og_second_if);
         clock_generator.enable_output_mask(1U << clock_generator_output_og_second_if);
     }
+#endif
 }
 
 void ClockManager::disable_if_clocks() {
+#ifdef PRALINE
+    clock_generator.disable_output_mask(1U << clock_generator_output_og_first_if);
+    clock_generator.disable_clock(clock_generator_output_og_first_if);
+    clock_generator.disable_output_mask(1U << clock_generator_output_og_second_if);
+    clock_generator.disable_clock(clock_generator_output_og_second_if);
+#else
     if (hackrf_r9) {
         clock_generator.disable_output_mask(1U << clock_generator_output_r9_if);
         clock_generator.disable_clock(clock_generator_output_r9_if);
@@ -461,19 +646,39 @@ void ClockManager::disable_if_clocks() {
         clock_generator.disable_output_mask(1U << clock_generator_output_og_second_if);
         clock_generator.disable_clock(clock_generator_output_og_second_if);
     }
+#endif
 }
 
 void ClockManager::set_sampling_frequency(const uint32_t frequency) {
+#ifdef PRALINE
+    /* PRALINE: CLK0=AFE_CLK runs at sample rate (VCO/divider/2)
+     *          CLK1=SCT_CLK runs at 2x sample rate (VCO/divider/1)
+     * Reference: hackrf_core.c sample_rate_frac_set() lines 580-582
+     */
+
+    /* PRALINE: Match HackRF USB  sample_rate_frac_set()
+     * Reference: hackrf_usb radio.c lines 29-91, hackrf_core.c lines 501-685 */
+
+    // Set FPGA decimation to 0 (no decimation) for direct passthrough
+    fpga_debug_register_write(2, 0);
+    radio::invalidate_spi_config();
+
+    // The following was originally from @kitty. Adopting for testing radio.
+    clock_generator.set_ms_frequency(0, frequency * 2, si5351_vco_f, 1);  // CLK0: r_div=1 (÷2)
+    clock_generator.set_ms_frequency(1, frequency * 2, si5351_vco_f, 0);  // CLK1: r_div=0 (÷1)
+#else
     /* Codec clock is at sampling frequency, CPLD and SGPIO clocks are at
      * twice the frequency, and derived from the MS0 synth. So it's only
      * necessary to change the MS0 synth frequency, and ensure the output
      * is divided by two.
      */
+
     if (hackrf_r9) {
         clock_generator.set_ms_frequency(clock_generator_output_r9_sgpio, frequency * 2, si5351_vco_f, 0);
     } else {
         clock_generator.set_ms_frequency(clock_generator_output_og_codec, frequency * 2, si5351_vco_f, 1);
     }
+#endif
 }
 
 void ClockManager::set_reference_ppb(const int32_t ppb) {
@@ -513,8 +718,15 @@ void ClockManager::start_frequency_monitor_measurement(const cgu::CLK_SEL clk_se
 
 void ClockManager::wait_For_frequency_monitor_measurement_done() {
     // FREQ_MON mechanism fails to finish if there's no clock present on selected input?!
-    while (LPC_CGU->FREQ_MON.MEAS == 1)
-        ;
+#ifndef PRALINE
+    while (LPC_CGU->FREQ_MON.MEAS == 1);
+#else
+    // PRALINE FIX: Add timeout to prevent infinite hang
+    uint32_t timeout = 100000;
+    while (LPC_CGU->FREQ_MON.MEAS == 1 && timeout > 0) {
+        timeout--;
+    }
+#endif
 }
 
 uint32_t ClockManager::get_frequency_monitor_measurement_in_hertz() {
@@ -525,6 +737,35 @@ uint32_t ClockManager::get_frequency_monitor_measurement_in_hertz() {
 }
 
 void ClockManager::start_audio_pll() {
+#ifdef PRALINE
+    /* PRALINE: Use 12MHz XTAL for audio PLL
+     * For 12MHz XTAL input, 48kHz audio rate, 256Fs MCLK:
+     *   Fout=12.288MHz, Fcco=491.52MHz
+     *   12MHz * 1024 / 25 = 491.52MHz
+     *   MSEL=1024, NSEL=25, PSEL=20
+     */
+    cgu::pll0audio::ctrl({
+        .pd = 1,
+        .bypass = 0,
+        .directi = 0,
+        .directo = 0,
+        .clken = 0,
+        .frm = 0,
+        .autoblock = 1,
+        .pllfract_req = 0,
+        .sel_ext = 1,
+        .mod_pd = 1,
+        .clk_sel = cgu::CLK_SEL::XTAL,
+    });
+
+    cgu::pll0audio::mdiv({
+        .mdec = 22625UL,  // MDEC for MSEL=1024
+    });
+    cgu::pll0audio::np_div({
+        .pdec = 31,  // PSEL=20
+        .ndec = 69,  // NDEC for NSEL=25
+    });
+#else
     cgu::pll0audio::ctrl({
         .pd = 1,
         .bypass = 0,
@@ -553,14 +794,24 @@ void ClockManager::start_audio_pll() {
         .pdec = 31,
         .ndec = 45,
     });
+#endif
 
     cgu::pll0audio::frac({
         .pllfract_ctrl = 0,
     });
 
     cgu::pll0audio::power_up();
-    while (!cgu::pll0audio::is_locked())
-        ;
+#ifndef PRALINE
+    while (!cgu::pll0audio::is_locked());
+#else
+    // PRALINE FIX: Add timeout to prevent infinite hang if GP_CLKIN not present
+    {
+        uint32_t timeout = 100000;
+        while (!cgu::pll0audio::is_locked() && timeout > 0) {
+            timeout--;
+        }
+    }
+#endif
     cgu::pll0audio::clock_enable();
 
     set_base_audio_clock_divider(1);
@@ -577,8 +828,7 @@ void ClockManager::set_base_audio_clock_divider(const size_t divisor) {
 void ClockManager::stop_audio_pll() {
     cgu::pll0audio::clock_disable();
     cgu::pll0audio::power_down();
-    while (cgu::pll0audio::is_locked())
-        ;
+    while (cgu::pll0audio::is_locked());
 }
 
 void ClockManager::enable_clock_output(bool enable) {

firmware/application/clock_manager.hpp

@@ -72,6 +72,13 @@ class ClockManager {
 
     void set_reference_ppb(const int32_t ppb);
 
+#ifdef PRALINE
+    // Si5351 diagnostic methods
+    uint8_t si5351_read_status() { return clock_generator.device_status(); }
+    uint8_t si5351_read_register(uint8_t reg) { return clock_generator.read_register(reg); }
+    void si5351_write_register(uint8_t reg, uint8_t value) { clock_generator.write_register(reg, value); }
+#endif
+
     uint32_t get_frequency_monitor_measurement_in_hertz();
 
     Reference get_reference() const;

firmware/application/debug.cpp

@@ -139,13 +139,11 @@ void runtime_error(uint8_t source) {
     led.off();
 
     // wait for DFU button release if pressed, so we don't immediately jump into stack dump
-    while (swizzled_switches() & (1 << (int)Switch::Dfu))
-        ;
+    while (swizzled_switches() & (1 << (int)Switch::Dfu));
 
     while (true) {
         volatile size_t n = 1000000U;
-        while (n--)
-            ;
+        while (n--);
         led.toggle();
 
         // Stack dump will cover entire screen, so wait for DFU button press to attempt it
@@ -225,8 +223,7 @@ void draw_stack_dump() {
         // Out of room on the screen or end of stack - allow Up/Down paging.
         // First wait for button release from previous press.
         // NOTE: can't call swizzle_switches() with interrupted enabled!
-        while (swizzled_switches() & ((1 << (int)Switch::Right) | (1 << (int)Switch::Left) | (1 << (int)Switch::Down) | (1 << (int)Switch::Up) | (1 << (int)Switch::Sel) | (1 << (int)Switch::Dfu)))
-            ;
+        while (swizzled_switches() & ((1 << (int)Switch::Right) | (1 << (int)Switch::Left) | (1 << (int)Switch::Down) | (1 << (int)Switch::Up) | (1 << (int)Switch::Sel) | (1 << (int)Switch::Dfu)));
 
         painter.draw_string({border, portapack::display.height() - border - 8}, *Theme::getInstance()->bg_darkest_small, "Use UP/DOWN key");
 

firmware/application/debug.hpp

@@ -41,8 +41,7 @@ extern uint32_t __process_stack_end__;
 
 inline uint32_t get_free_stack_space() {
     uint32_t* p;
-    for (p = &__process_stack_base__; *p == CRT0_STACKS_FILL_PATTERN && p < &__process_stack_end__; p++)
-        ;
+    for (p = &__process_stack_base__; *p == CRT0_STACKS_FILL_PATTERN && p < &__process_stack_end__; p++);
     auto stack_space_left = p - &__process_stack_base__;
 
     return stack_space_left;

firmware/application/external/adult_toys_controller/ui_adult_toys_controller.hpp

@@ -104,7 +104,7 @@ class AdultToysView : public ui::View {
         /*short_ui*/ true};
 
     app_settings::SettingsManager settings_{
-        "Adult Toys", app_settings::Mode::TX};
+        "tx_adult_toys", app_settings::Mode::TX};
 
     OptionsField options_target{
         {UI_POS_X(6), UI_POS_Y(1)},

firmware/application/external/app_manager/ui_app_manager.cpp

@@ -62,19 +62,24 @@ AppManagerView::AppManagerView(NavigationView& nav)
         auto app_name = get_app_info(menu_view.highlighted_index(), true);
         auto app_id = get_app_info(menu_view.highlighted_index(), false);
 
-        info += "Hidden:";
+        if (!app_name.empty()) {
+            info += "Hidden:";
 
-        if (is_blacklisted(app_name)) {
-            info += "Yes ";
-        } else {
-            info += "No ";
+            if (is_blacklisted(app_name)) {
+                info += "Yes ";
+            } else {
+                info += "No ";
+            }
         }
 
-        info += "Autostart:";
-        if (is_autostart_app(app_id)) {
-            info += "Yes";
-        } else {
-            info += "No";
+        if (!app_id.empty()) {
+            info += "Autostart:";
+
+            if (is_autostart_app(app_id)) {
+                info += "Yes";
+            } else {
+                info += "No";
+            }
         }
 
         if (info.empty()) {
@@ -82,6 +87,8 @@ AppManagerView::AppManagerView(NavigationView& nav)
         }
 
         text_app_info.set(info);
+        button_hide_unhide.set_focusable(!app_name.empty());
+        button_set_cancel_autostart.set_focusable(!app_id.empty());
     };
 
     button_hide_unhide.on_select = [this](Button&) {
@@ -120,27 +127,23 @@ void AppManagerView::refresh_list() {
     };
 
     for (auto& app : NavigationView::appList) {
-        if (app.id == nullptr) continue;
-
         app_list_index++;
 
-        menu_view.add_item({app.displayName + std::string(is_autostart_app(app.id) ? padding(app.displayName) : ""),
+        menu_view.add_item({app.displayName + std::string((app.id != nullptr && is_autostart_app(app.id)) ? padding(app.displayName) : ""),
                             app.iconColor,
                             app.icon,
-                            [this, app_id = std::string(app.id)](KeyEvent) {
+                            [this, app_id = std::string(app.id != nullptr ? app.id : "")](KeyEvent) {
                                 button_hide_unhide.focus();
                             }});
     }
 
     ExternalItemsMenuLoader::load_all_external_items_callback([this, &index, &padding](ui::AppInfoConsole& app) {
-        if (app.appCallName == nullptr) return;
-
         app_list_index++;
 
-        menu_view.add_item({app.appFriendlyName + std::string(is_autostart_app(app.appCallName) ? padding(app.appFriendlyName) : ""),
+        menu_view.add_item({app.appFriendlyName + std::string((app.appCallName != nullptr && is_autostart_app(app.appCallName)) ? padding(app.appFriendlyName) : ""),
                             ui::Color::light_grey(),
                             &bitmap_icon_sdcard,
-                            [this, app_id = std::string(app.appCallName)](KeyEvent) {
+                            [this, app_id = std::string(app.appCallName != nullptr ? app.appCallName : "")](KeyEvent) {
                                 button_hide_unhide.focus();
                             }});
     });
@@ -156,19 +159,29 @@ void AppManagerView::hide_app() {
     std::vector<std::string> blacklist;
     get_blacklist(blacklist);
 
-    blacklist.push_back(get_app_info(menu_view.highlighted_index(), true));
+    auto app_name = get_app_info(menu_view.highlighted_index(), true);
+    if (app_name.empty()) return;
+
+    blacklist.push_back(app_name);
     write_blacklist(blacklist);
 }
 
 void AppManagerView::unhide_app() {
     std::vector<std::string> blacklist;
     get_blacklist(blacklist);
-    blacklist.erase(std::remove(blacklist.begin(), blacklist.end(), get_app_info(menu_view.highlighted_index(), true)), blacklist.end());
+
+    auto app_name = get_app_info(menu_view.highlighted_index(), true);
+    if (app_name.empty()) return;
+
+    blacklist.erase(std::remove(blacklist.begin(), blacklist.end(), app_name), blacklist.end());
     write_blacklist(blacklist);
 }
 
 void AppManagerView::hide_unhide_app() {
-    if (is_blacklisted(get_app_info(menu_view.highlighted_index(), true)))
+    auto app_name = get_app_info(menu_view.highlighted_index(), true);
+    if (app_name.empty()) return;
+
+    if (is_blacklisted(app_name))
         unhide_app();
     else
         hide_app();
@@ -218,6 +231,7 @@ void AppManagerView::set_auto_start() {
     if (app_index >= app_list_index) return;
 
     auto id_aka_app_call_name = get_app_info(app_index, false);
+    if (id_aka_app_call_name.empty()) return;
 
     autostart_app = id_aka_app_call_name;
 
@@ -234,6 +248,7 @@ void AppManagerView::set_unset_autostart_app() {
     if (app_index >= app_list_index) return;
 
     auto id_aka_friendly_name = get_app_info(app_index, false);
+    if (id_aka_friendly_name.empty()) return;
 
     if (is_autostart_app(id_aka_friendly_name))
         unset_auto_start();
@@ -254,17 +269,15 @@ std::string AppManagerView::get_app_info(uint16_t index, bool is_display_name) {
     std::string result;
 
     for (auto& app : NavigationView::appList) {
-        if (app.id == nullptr) continue;
         if (current_index == index) {
-            return is_display_name ? std::string(app.displayName) : std::string(app.id);
+            return is_display_name ? std::string(app.displayName != nullptr ? app.displayName : "") : std::string(app.id != nullptr ? app.id : "");
         }
         current_index++;
     }
 
     ExternalItemsMenuLoader::load_all_external_items_callback([&current_index, &index, &result, &is_display_name](ui::AppInfoConsole& app) {
-        if (app.appCallName == nullptr) return;
         if (current_index == index) {
-            result = is_display_name ? app.appFriendlyName : app.appCallName;
+            result = is_display_name ? (app.appFriendlyName != nullptr ? app.appFriendlyName : "") : (app.appCallName != nullptr ? app.appCallName : "");
         }
         current_index++;
     });

firmware/application/external/ert/ert_app.hpp

@@ -118,7 +118,7 @@ class ERTAppView : public View {
 
     // Prevent painting of region covered entirely by a child.
     // TODO: Add flag to View that specifies view does not need to be cleared before painting.
-    void paint(Painter&) override{};
+    void paint(Painter&) override {};
 
     void focus() override;
 

firmware/application/external/external.cmake

@@ -91,14 +91,18 @@ set(EXTCPPSRC
 	external/adsbtx/main.cpp
 	external/adsbtx/ui_adsb_tx.cpp
 
-	#morse_tx 768 bytes
-	external/morse_tx/main.cpp
-	external/morse_tx/ui_morse.cpp
+	#morse_tx 768 bytes -- disabled because of the new morse tx app with more functions
+	#external/morse_tx/main.cpp
+	#external/morse_tx/ui_morse.cpp
 
 	#sstvtx 456 bytes
 	external/sstvtx/main.cpp
 	external/sstvtx/ui_sstvtx.cpp
 
+	#sstvrx
+	external/sstvrx/main.cpp
+	external/sstvrx/ui_sstvrx.cpp
+
 	#random 464  bytes.
 	external/random_password/main.cpp
 	external/random_password/ui_random_password.cpp
@@ -218,7 +222,11 @@ set(EXTCPPSRC
 
 	#gfxEQ 80 byte
 	external/gfxeq/main.cpp
-	external/gfxeq/ui_gfxeq.cpp
+	external/gfxeq/ui_gfxeq.cpp	
+
+	#waterfall designer
+	external/waterfall_designer/main.cpp
+	external/waterfall_designer/ui_waterfall_designer.cpp
 
 	#detector_rx  168 byte
 	external/detector_rx/main.cpp
@@ -264,6 +272,26 @@ set(EXTCPPSRC
 	#adult_toys_controller  144 bytes 
 	external/adult_toys_controller/main.cpp
 	external/adult_toys_controller/ui_adult_toys_controller.cpp
+
+	#flex_rx
+	external/flex_rx/main.cpp
+	external/flex_rx/ui_flex_rx.cpp	
+
+	#subcarrx
+	external/subcarrx/main.cpp
+	external/subcarrx/ui_subcar.cpp
+
+	#siggen
+	external/siggen/main.cpp
+	external/siggen/ui_siggen.cpp
+
+	#morse_radio
+	external/morse_radio/main.cpp
+	external/morse_radio/ui_morse_radio.cpp
+
+	#morseradiotx
+	external/morseradiotx/main.cpp
+	external/morseradiotx/ui_morse_radiotx.cpp
 )
 
 set(EXTAPPLIST
@@ -288,8 +316,9 @@ set(EXTAPPLIST
 	tpmsrx
 	protoview
 	adsbtx
-	morse_tx
+	#morse_tx
 	sstvtx
+	sstvrx
 	random_password
 	# acars_rx --not working
 	wefax_rx
@@ -319,6 +348,7 @@ set(EXTAPPLIST
 	scanner
 	level
 	gfxeq
+	waterfall_designer
 	detector_rx
 	spaceinv
 	blackjack
@@ -330,4 +360,19 @@ set(EXTAPPLIST
 	bht_tx
 	morse_practice
 	adult_toys_controller
+	flex_rx
+	subcarrx
+	siggen
+	morse_radio
+	morseradiotx
 )
+
+# sdusb has type conflicts with PRALINE (HackRF Pro) - add only for non-PRALINE builds
+if(NOT BOARD STREQUAL "PRALINE")
+       list(APPEND EXTCPPSRC
+               external/sdusb/main.cpp
+               external/sdusb/ui_sd_over_usb.cpp
+       )
+       list(APPEND EXTAPPLIST sdusb)
+endif()
+

firmware/application/external/external.ld

@@ -86,7 +86,14 @@ MEMORY
     ram_external_app_bht_tx          (rwx) : org = 0xADED0000, len = 32k
     ram_external_app_morse_practice  (rwx) : org = 0xADEE0000, len = 32k
     ram_external_app_adult_toys_controller  (rwx) : org = 0xADEF0000, len = 32k
-
+    ram_external_app_flex_rx  (rwx) : org = 0xADF00000, len = 32k
+    ram_external_app_sstvrx  (rwx) : org = 0xADF10000, len = 32k
+    ram_external_app_subcarrx  (rwx) : org = 0xADF20000, len = 32k
+    ram_external_app_siggen  (rwx) : org = 0xADF30000, len = 32k
+    ram_external_app_sdusb  (rwx) : org = 0xADF40000, len = 32k
+    ram_external_app_morse_radio  (rwx) : org = 0xADF50000, len = 32k
+    ram_external_app_waterfall_designer (rwx) : org = 0xADF60000, len = 32k
+    ram_external_app_morseradiotx  (rwx) : org = 0xADF70000, len = 32k
 }
 
 SECTIONS
@@ -397,6 +404,12 @@ SECTIONS
         *(*ui*external_app*gfxeq*);
     } > ram_external_app_gfxeq
 
+    .external_app_waterfall_designer : ALIGN(4) SUBALIGN(4)
+    {
+        KEEP(*(.external_app.app_waterfall_designer.application_information));
+        *(*ui*external_app*waterfall_designer*);
+    } > ram_external_app_waterfall_designer
+
     .external_app_detector_rx : ALIGN(4) SUBALIGN(4)
     {
         KEEP(*(.external_app.app_detector_rx.application_information));
@@ -471,5 +484,47 @@ SECTIONS
         *(*ui*external_app*adult_toys_controller*);
     } > ram_external_app_adult_toys_controller
 
+    .external_app_flex_rx : ALIGN(4) SUBALIGN(4)
+    {
+        KEEP(*(.external_app.app_flex_rx.application_information));
+        *(*ui*external_app*flex_rx*);
+    } > ram_external_app_flex_rx    
+
+    .external_app_sstvrx : ALIGN(4) SUBALIGN(4)
+    {
+        KEEP(*(.external_app.app_sstvrx.application_information));
+        *(*ui*external_app*sstvrx*);
+    } > ram_external_app_sstvrx
+
+    .external_app_subcarrx : ALIGN(4) SUBALIGN(4)
+    {
+        KEEP(*(.external_app.app_subcarrx.application_information));
+        *(*ui*external_app*subcarrx*);
+    } > ram_external_app_subcarrx
+
+    .external_app_siggen : ALIGN(4) SUBALIGN(4)
+    {
+        KEEP(*(.external_app.app_siggen.application_information));
+        *(*ui*external_app*siggen*);
+    } > ram_external_app_siggen
+
+     .external_app_sdusb : ALIGN(4) SUBALIGN(4)
+    {
+        KEEP(*(.external_app.app_sdusb.application_information));
+        *(*ui*external_app*sdusb*);
+    } > ram_external_app_sdusb
+   
+    .external_app_morse_radio : ALIGN(4) SUBALIGN(4)
+    {
+        KEEP(*(.external_app.app_morse_radio.application_information));
+        *(*ui*external_app*morse_radio*);
+    } > ram_external_app_morse_radio
+
+    .external_app_morseradiotx : ALIGN(4) SUBALIGN(4)
+    {
+        KEEP(*(.external_app.app_morseradiotx.application_information));
+        *(*ui*external_app*morseradiotx*);
+    } > ram_external_app_morseradiotx
+
 }
 

firmware/application/external/flex_rx/main.cpp

@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2025 HTotoo
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "ui.hpp"
+#include "ui_flex_rx.hpp"
+#include "ui_navigation.hpp"
+#include "external_app.hpp"
+
+namespace ui::external_app::flex_rx {
+void initialize_app(ui::NavigationView& nav) {
+    nav.push<FlexAppView>();
+}
+}  // namespace ui::external_app::flex_rx
+
+extern "C" {
+
+__attribute__((section(".external_app.app_flex_rx.application_information"), used)) application_information_t _application_information_flex_rx = {
+    /*.memory_location = */ (uint8_t*)0x00000000,
+    /*.externalAppEntry = */ ui::external_app::flex_rx::initialize_app,
+    /*.header_version = */ CURRENT_HEADER_VERSION,
+    /*.app_version = */ VERSION_MD5,
+
+    /*.app_name = */ "FLEX RX",
+    /*.bitmap_data = */ {
+        0x00,
+        0x00,
+        0xFE,
+        0x7F,
+        0x02,
+        0x40,
+        0xFA,
+        0x5F,
+        0x02,
+        0x40,
+        0xF2,
+        0x4F,
+        0x02,
+        0x40,
+        0xE2,
+        0x47,
+        0x02,
+        0x40,
+        0xC2,
+        0x43,
+        0x02,
+        0x40,
+        0x82,
+        0x41,
+        0x02,
+        0x40,
+        0xFE,
+        0x7F,
+        0x00,
+        0x00,
+        0x00,
+        0x00,
+    },
+    /*.icon_color = */ ui::Color::orange().v,
+    /*.menu_location = */ app_location_t::RX,
+    /*.desired_menu_position = */ -1,
+
+    /*.m4_app_tag = portapack::spi_flash::image_tag_flex */ {'P', 'F', 'L', 'X'},
+    /*.m4_app_offset = */ 0x00000000,  // will be filled at compile time
+};
+}

firmware/application/external/flex_rx/ui_flex_rx.cpp

@@ -0,0 +1,129 @@
+#include "ui_flex_rx.hpp"
+
+#include "baseband_api.hpp"
+#include "portapack_persistent_memory.hpp"
+#include "string_format.hpp"
+#include "memory_map.hpp"
+
+using namespace portapack;
+
+namespace ui::external_app::flex_rx {
+
+FlexAppView::FlexAppView(NavigationView& nav)
+    : nav_{nav} {
+    // Load baseband image for FLEX decoding
+    baseband::run_prepared_image(portapack::memory::map::m4_code.base());
+
+    add_children({&field_frequency,
+                  &field_rf_amp,
+                  &field_lna,
+                  &field_vga,
+                  &rssi,
+                  &console});
+
+    // Restore saved frequency
+    field_frequency.set_value(frequency_value);
+    receiver_model.set_target_frequency(frequency_value);
+
+    // Frequency change callback
+    field_frequency.updated = [this](rf::Frequency f) {
+        update_freq(f);
+    };
+
+    // Configure receiver
+    receiver_model.set_sampling_rate(3072000);
+    receiver_model.set_baseband_bandwidth(1750000);
+    receiver_model.enable();
+    receiver_model.set_squelch_level(0);
+
+    // Initialize FLEX baseband
+    baseband::set_flex_config();
+
+    console.writeln("Ready");
+}
+
+FlexAppView::~FlexAppView() {
+    receiver_model.disable();
+    baseband::shutdown();
+}
+
+void FlexAppView::focus() {
+    field_frequency.focus();
+}
+
+// Redraw all messages to console
+void FlexAppView::redraw_console() {
+    console.clear(true);
+    bool first = true;
+    for (const auto& msg : messages) {
+        if (!first) {
+            console.writeln("");  // Blank line between messages
+        }
+        first = false;
+        console.writeln(msg);
+    }
+}
+
+// Add message to log with automatic line wrapping
+void FlexAppView::log_message(const std::string& message) {
+    const size_t chars_per_line = screen_width / 8;
+    // Console height accounts for status bar and controls row
+    const size_t console_lines = (screen_height - 2 * 16) / 16;
+
+    messages.push_back(message);
+
+    // Calculate total lines used (messages + blank lines between them)
+    size_t total_lines = 0;
+    for (size_t i = 0; i < messages.size(); i++) {
+        if (i > 0) total_lines++;  // Count blank line separator
+        size_t msg_lines = (messages[i].length() + chars_per_line - 1) / chars_per_line;
+        if (msg_lines == 0) msg_lines = 1;
+        total_lines += msg_lines;
+    }
+
+    // If console would overflow, remove oldest messages and redraw
+    if (total_lines > console_lines) {
+        while (total_lines > console_lines && !messages.empty()) {
+            const auto& oldest = messages.front();
+            size_t oldest_lines = (oldest.length() + chars_per_line - 1) / chars_per_line;
+            if (oldest_lines == 0) oldest_lines = 1;
+            total_lines -= oldest_lines;
+            if (messages.size() > 1) total_lines--;  // Remove separator line too
+            messages.erase(messages.begin());
+        }
+        redraw_console();
+    } else {
+        // Just append new message
+        if (messages.size() > 1) {
+            console.writeln("");  // Blank line before new message
+        }
+        console.writeln(message);
+    }
+}
+
+// Update frequency and save for persistence
+void FlexAppView::update_freq(rf::Frequency f) {
+    frequency_value = f;
+    receiver_model.set_target_frequency(f);
+}
+
+// Handle decoded FLEX packet from baseband
+void FlexAppView::on_packet(const FlexPacketMessage* message) {
+    log_message(message->packet.message);
+}
+
+// Handle stats message (currently unused)
+void FlexAppView::on_stats(const FlexStatsMessage*) {
+}
+
+// Debug handler - uncomment to see baseband debug messages
+void FlexAppView::on_debug(const FlexDebugMessage* message) {
+    (void)message;  // Suppress unused parameter warning
+    // std::string text = "DBG: ";
+    // text += message->text;
+    // text += " " + to_string_hex(message->val1, 8);
+    // text += " " + to_string_hex(message->val2, 8);
+    // log_message(text);
+}
+
+}  // namespace ui::external_app::flex_rx

firmware/application/external/flex_rx/ui_flex_rx.hpp

@@ -0,0 +1,97 @@
+#ifndef __UI_FLEX_RX_H__
+#define __UI_FLEX_RX_H__
+
+#include "ui_widget.hpp"
+#include "ui_navigation.hpp"
+#include "ui_receiver.hpp"
+#include "ui_freq_field.hpp"
+#include "ui_rssi.hpp"
+#include "app_settings.hpp"
+#include "radio_state.hpp"
+
+#include <string>
+#include <vector>
+
+namespace ui::external_app::flex_rx {
+
+class FlexAppView : public View {
+   public:
+    FlexAppView(NavigationView& nav);
+    ~FlexAppView();
+
+    void focus() override;
+    std::string title() const override { return "FLEX RX"; };
+
+   private:
+    NavigationView& nav_;
+
+    // Saved settings
+    rf::Frequency frequency_value{931740000};  // Default FLEX frequency
+
+    RxRadioState radio_state_{};
+
+    // Message storage for console redraw
+    static constexpr size_t MAX_MESSAGES = 20;
+    std::vector<std::string> messages{};
+
+    // Helper methods
+    void log_message(const std::string& message);
+    void redraw_console();
+    void update_freq(rf::Frequency f);
+
+    // UI Elements - Row 0, dynamically positioned
+    RxFrequencyField field_frequency{
+        {UI_POS_X(0), UI_POS_Y(0)},
+        nav_};
+
+    RFAmpField field_rf_amp{
+        {UI_POS_X(13), UI_POS_Y(0)}};
+    LNAGainField field_lna{
+        {UI_POS_X(15), UI_POS_Y(0)}};
+    VGAGainField field_vga{
+        {UI_POS_X(18), UI_POS_Y(0)}};
+
+    RSSI rssi{
+        {UI_POS_X(21), 0, UI_POS_WIDTH(9), 4}};
+
+    // Message display area (below controls, account for status bar)
+    Console console{
+        {0, 1 * 16, screen_width, screen_height - 2 * 16}};
+
+    // Persistent settings manager
+    app_settings::SettingsManager settings_{
+        "rx_flex",
+        app_settings::Mode::RX,
+        {{"frequency", &frequency_value}}};
+
+    // Message handlers
+    void on_packet(const FlexPacketMessage* message);
+    void on_stats(const FlexStatsMessage* message);
+    void on_debug(const FlexDebugMessage* message);
+
+    // Message handler registrations
+    MessageHandlerRegistration message_handler_packet{
+        Message::ID::FlexPacket,
+        [this](const Message* const p) {
+            const auto message = *static_cast<const FlexPacketMessage*>(p);
+            this->on_packet(&message);
+        }};
+
+    MessageHandlerRegistration message_handler_stats{
+        Message::ID::FlexStats,
+        [this](const Message* const p) {
+            const auto message = *static_cast<const FlexStatsMessage*>(p);
+            this->on_stats(&message);
+        }};
+
+    MessageHandlerRegistration message_handler_debug{
+        Message::ID::FlexDebug,
+        [this](const Message* const p) {
+            const auto message = *static_cast<const FlexDebugMessage*>(p);
+            this->on_debug(&message);
+        }};
+};
+
+}  // namespace ui::external_app::flex_rx
+
+#endif /*__UI_FLEX_RX_H__*/

firmware/application/external/flippertx/ui_flippertx.cpp

@@ -80,7 +80,7 @@ bool FlipperTxView::on_file_changed(std::filesystem::path new_file_path) {
         return false;
     }
     preset = submeta.value().preset;
-    if (preset != FLIPPER_PRESET_OOK) {
+    if (preset != FLIPPER_PRESET_OOK && preset != FLIPPER_PRESET_2FSK) {
         field_filename.set_text("File: err, not supp. preset");
         return false;
     }
@@ -108,8 +108,13 @@ void FlipperTxView::stop() {
 bool FlipperTxView::start() {
     if (filename.empty()) return false;
     baseband::run_prepared_image(portapack::memory::map::m4_code.base());
+    transmitter_model.set_sampling_rate(OOK_SAMPLERATE);
     transmitter_model.enable();
     button_startstop.set_text(LanguageHelper::currentMessages[LANG_STOP]);
+    uint8_t mode = 0;
+    if (preset == FLIPPER_PRESET_2FSK)
+        mode = 1;
+    baseband::set_bitstream_config(FM_DEVIATION, mode);
     // start thread
     replay_thread = std::make_unique<FlipperPlayThread>(
         filename,

firmware/application/external/flippertx/ui_flippertx.hpp

@@ -28,6 +28,8 @@ using namespace ui;
 namespace ui::external_app::flippertx {
 
 #define OOK_SAMPLERATE 2280000U
+#define FM_DEVIATION 60000U
+
 class FlipperPlayThread;
 class FlipperTxView : public View {
    public:

firmware/application/external/morse_practice/morsedecoder.hpp

@@ -24,8 +24,7 @@
 
 #include <cstdint>
 #include <string>
-
-#define MORSEDEC_ERROR "<ERR>"
+#include "string_format.hpp"
 
 namespace ui::external_app::morse_practice {
 
@@ -89,21 +88,28 @@ class MorseDecoder {
     };
 
     MorseDecoder() {}
-    DecodeResult handleInput(int32_t duration_ms) {
+
+    DecodeResult
+    handleInput(int32_t duration_ms) {
         DecodeResult result = {"", 0.0};
+
+        if (duration_ms < 5 && duration_ms > -5) return result;
+
         if (duration_ms > 0) {
             pulse_history_.push_back(duration_ms);
             double dah_prob = getDahProbability(duration_ms);
             current_sequence_ += (dah_prob > 0.5) ? '-' : '.';
             last_confidence_ = (dah_prob > 0.5) ? dah_prob : (1.0 - dah_prob);
             last_sequence_ = current_sequence_;
+
         } else {
             uint32_t gap_duration = -duration_ms;
             pulse_gaps_.push_back(gap_duration);
 
             if (gap_duration >= getInterCharThreshold() && !current_sequence_.empty()) {
                 result.text = lookupMorse(current_sequence_);
-                result.confidence = (result.text != MORSEDEC_ERROR) ? last_confidence_ : 0.0;
+
+                result.confidence = (result.text[0] != '{') ? last_confidence_ : 0.0;
                 if (gap_duration >= getInterWordThreshold()) {
                     result.text += " ";
                 }
@@ -116,9 +122,9 @@ class MorseDecoder {
         return result;
     }
 
-    inline double getInterElementThreshold() { return time_unit_ms_ * 2.0; }
-    inline double getInterCharThreshold() { return time_unit_ms_ * 4.0; }
-    inline double getInterWordThreshold() { return time_unit_ms_ * 7.0; }
+    inline double getInterElementThreshold() { return time_unit_ms_ * 0.8; }
+    inline double getInterCharThreshold() { return time_unit_ms_ * 2.5; }
+    inline double getInterWordThreshold() { return time_unit_ms_ * 6.0; }
 
     inline double getCurrentTimeUnit() { return time_unit_ms_; }
     inline std::string getLastSequence() { return last_sequence_; }
@@ -126,7 +132,7 @@ class MorseDecoder {
    private:
     std::string current_sequence_ = "";
     std::string last_sequence_ = "";
-    double time_unit_ms_ = 160.0;
+    double time_unit_ms_ = 119.0;
     double last_confidence_ = 0.0;
     MorseRingBuffer pulse_history_{};
     MorseRingBuffer pulse_gaps_{};
@@ -136,7 +142,7 @@ class MorseDecoder {
             if (seq == morse_table_[i].code)
                 return morse_table_[i].letter;
         }
-        return MORSEDEC_ERROR;  // not found
+        return "{" + seq + "}";  // not found
     }
 
     double getDahProbability(uint32_t duration_ms) {
@@ -298,8 +304,8 @@ class MorseDecoder {
         time_unit_ms_ = (time_unit_ms_ * (1.0 - learning_factor)) + (new_time_unit * learning_factor);
     }
 
-    size_t morse_table_size_ = 41;
-    MorseEntry morse_table_[41] = {
+    size_t morse_table_size_ = 50;
+    MorseEntry morse_table_[50] = {
         {".-", "A"},
         {"-...", "B"},
         {"-.-.", "C"},
@@ -340,7 +346,16 @@ class MorseDecoder {
         {"..--..", "?"},
         {"-.-.--", "!"},
         {"--..--", ","},
-        {"-...-", "="}};
+        {"-...-", "="},
+        {"-..-.", "/"},
+        {".--.-.", "@"},
+        {"---...", ":"},
+        {"-....-", "-"},
+        {".----.", "'"},
+        {".-..-.", "\""},
+        {"-.--.", "("},
+        {"-.--.-", ")"},
+        {".-.-.", "+"}};
 };
 
 }  // namespace ui::external_app::morse_practice

firmware/application/external/morse_practice/ui_morse_practice.cpp

@@ -12,6 +12,13 @@ MorsePracticeView::MorsePracticeView(ui::NavigationView& nav)
                   &btn_clear,
                   &console_text,
                   &field_volume});
+
+    initial_switch_config_ = get_switches_repeat_config();
+
+    SwitchesState config = initial_switch_config_;
+    config[toUType(Switch::Sel)] = false;
+    set_switches_repeat_config(config);
+
     audio::set_rate(audio::Rate::Hz_24000);
 
     btn_tt.on_select = [this](Button&) {
@@ -43,6 +50,7 @@ MorsePracticeView::MorsePracticeView(ui::NavigationView& nav)
 }
 
 MorsePracticeView::~MorsePracticeView() {
+    set_switches_repeat_config(initial_switch_config_);
     receiver_model.disable();
     baseband::shutdown();
     audio::output::stop();
@@ -98,7 +106,7 @@ void MorsePracticeView::writeCharToConsole(const std::string& ch, double confide
 
     if (ch == " ") {
         color_id = 0;
-    } else if (ch == MORSEDEC_ERROR) {
+    } else if (ch[0] == '{') {  // no match
         color_id = 0;
     } else {
         if (confidence < 0.8)

firmware/application/external/morse_practice/ui_morse_practice.hpp

@@ -47,7 +47,7 @@ class MorsePracticeView : public ui::View {
     MorsePracticeView(ui::NavigationView& nav);
     ~MorsePracticeView();
 
-    std::string title() { return "Morse P"; }
+    std::string title() const override { return "Morse Practice"; }
     void focus() override;
     void on_show() override;
 
@@ -68,7 +68,7 @@ class MorsePracticeView : public ui::View {
     ui::Text txt_last{{UI_POS_X(0), UI_POS_Y(6), UI_POS_MAXWIDTH, UI_POS_HEIGHT(1)}, ""};
     ui::Button btn_clear{{UI_POS_X(0), UI_POS_Y_BOTTOM(2), UI_POS_WIDTH(6), UI_POS_HEIGHT(1)}, "CLR"};
     ui::Console console_text{{UI_POS_X(0), UI_POS_Y(7), UI_POS_MAXWIDTH, UI_POS_HEIGHT_REMAINING(10)}};
-    AudioVolumeField field_volume{{UI_POS_X_RIGHT(2), UI_POS_X(0)}};
+    AudioVolumeField field_volume{{UI_POS_X_RIGHT(2), UI_POS_Y(0)}};
 
     uint8_t last_color_id = 255;
     uint8_t color_id = 255;
@@ -77,6 +77,7 @@ class MorsePracticeView : public ui::View {
     bool button_touch = false;
     bool button_was_selected = false;
     bool decode_timeout_calc = false;
+    SwitchesState initial_switch_config_{};
 
     MessageHandlerRegistration message_handler_framesync{
         Message::ID::DisplayFrameSync,

firmware/application/external/morse_radio/main.cpp

@@ -0,0 +1,86 @@
+/*
+ * Copyright (C) 2026 Pezsma
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "ui.hpp"
+#include "ui_morse_radio.hpp"
+#include "ui_navigation.hpp"
+#include "external_app.hpp"
+
+namespace ui::external_app::morse_radio {
+
+void initialize_app(NavigationView& nav) {
+    nav.push<MorseRadioView>();
+}
+
+}  // namespace ui::external_app::morse_radio
+
+extern "C" {
+
+__attribute__((section(".external_app.app_morse_radio.application_information"), used))
+application_information_t _application_information_morse_radio = {
+    /*.memory_location = */ (uint8_t*)0x00000000,
+    /*.externalAppEntry = */ ui::external_app::morse_radio::initialize_app,
+    /*.header_version = */ CURRENT_HEADER_VERSION,
+    /*.app_version = */ VERSION_MD5,
+
+    /*.app_name = */ "Morse",
+    /*.bitmap_data = */ {
+        0x00,
+        0x00,
+        0xFE,
+        0x7F,
+        0xFF,
+        0xFF,
+        0xBB,
+        0xD0,
+        0xFF,
+        0xFF,
+        0xFF,
+        0xFF,
+        0x0B,
+        0xE1,
+        0xFF,
+        0xFF,
+        0xFF,
+        0xFF,
+        0xEB,
+        0xD0,
+        0xFF,
+        0xFF,
+        0xFE,
+        0x7F,
+        0x70,
+        0x00,
+        0x30,
+        0x00,
+        0x10,
+        0x00,
+        0x00,
+        0x00,
+    },
+    /*.icon_color = */ ui::Color::yellow().v,
+    /*.menu_location = */ app_location_t::RX,
+    /*.desired_menu_position = */ -1,
+
+    /*.m4_app_tag = portapack::spi_flash::image_tag_morse_radio */ {'P', 'M', 'R', 'S'},
+    /*.m4_app_offset = */ 0x00000000,  // will be filled at compile time
+};
+}

firmware/application/external/morse_radio/morsedecoder.hpp

@@ -0,0 +1,378 @@
+#ifndef __MORSEDECODER_HPP__
+#define __MORSEDECODER_HPP__
+
+/*
+ * Copyright (C) 2025 Pezsma
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include <cstdint>
+#include <string>
+#include "string_format.hpp"
+
+namespace ui::external_app::morse_radio {
+
+class MorseRingBuffer {
+   public:
+    MorseRingBuffer()
+        : head_(0), tail_(0), count_(0) {}
+
+    void push_back(const uint32_t& value) {
+        data_[head_] = value;
+        head_ = (head_ + 1) % 40;
+        if (count_ < 40) {
+            count_++;
+        } else {
+            // overwrite oldest element
+            tail_ = (tail_ + 1) % 40;
+        }
+    }
+
+    void pop_front() {
+        if (count_ > 0) {
+            tail_ = (tail_ + 1) % 40;
+            count_--;
+        }
+    }
+
+    size_t size() const { return count_; }
+    bool empty() const { return count_ == 0; }
+    const uint32_t& front() const { return data_[tail_]; }
+    // Access by index (0 = oldest)
+    uint32_t operator[](size_t idx) const {
+        return data_[(tail_ + idx) % 40];
+    }
+    // Convert to vector-like access for sorting etc.
+    void copy_to_array(uint32_t* out) const {
+        for (size_t i = 0; i < count_; ++i)
+            out[i] = (*this)[i];
+    }
+
+    void clear() {
+        head_ = 0;
+        tail_ = 0;
+        count_ = 0;
+    }
+
+   private:
+    uint32_t data_[40];
+    size_t head_;
+    size_t tail_;
+    size_t count_;
+};
+
+class MorseDecoder {
+   public:
+    struct DecodeResult {
+        std::string text = "";
+        double confidence = 0.0;
+
+        bool isValid() const {
+            return !text.empty();
+        }
+    };
+
+    struct MorseEntry {
+        std::string code;
+        std::string letter;
+    };
+
+    MorseDecoder() {}
+
+    void resetLearning() {
+        time_unit_ms_ = 119.0;
+        current_sequence_ = "";
+        last_sequence_ = "";
+        last_confidence_ = 0.0;
+        pulse_history_.clear();
+        pulse_gaps_.clear();
+    }
+
+    DecodeResult
+    handleInput(int32_t duration_ms) {
+        DecodeResult result = {"", 0.0};
+
+        if (duration_ms < 5 && duration_ms > -5) return result;
+
+        if (duration_ms > 0) {
+            pulse_history_.push_back(duration_ms);
+            double dah_prob = getDahProbability(duration_ms);
+            current_sequence_ += (dah_prob > 0.5) ? '-' : '.';
+            last_confidence_ = (dah_prob > 0.5) ? dah_prob : (1.0 - dah_prob);
+            last_sequence_ = current_sequence_;
+
+        } else {
+            uint32_t gap_duration = -duration_ms;
+            pulse_gaps_.push_back(gap_duration);
+
+            if (gap_duration >= getInterCharThreshold() && !current_sequence_.empty()) {
+                result.text = lookupMorse(current_sequence_);
+
+                result.confidence = (result.text[0] != '{') ? last_confidence_ : 0.0;
+                if (gap_duration >= getInterWordThreshold()) {
+                    result.text += " ";
+                }
+                current_sequence_ = "";
+            }
+        }
+
+        updateLearning();
+
+        return result;
+    }
+
+    inline double getInterElementThreshold() { return time_unit_ms_ * 0.8; }
+    inline double getInterCharThreshold() { return time_unit_ms_ * 2.5; }
+    inline double getInterWordThreshold() { return time_unit_ms_ * 6.0; }
+
+    inline double getCurrentTimeUnit() { return time_unit_ms_; }
+    inline std::string getLastSequence() { return last_sequence_; }
+
+   private:
+    std::string current_sequence_ = "";
+    std::string last_sequence_ = "";
+    double time_unit_ms_ = 119.0;
+    double last_confidence_ = 0.0;
+    MorseRingBuffer pulse_history_{};
+    MorseRingBuffer pulse_gaps_{};
+
+    std::string lookupMorse(const std::string& seq) {
+        for (size_t i = 0; i < morse_table_size_; i++) {
+            if (seq == morse_table_[i].code)
+                return morse_table_[i].letter;
+        }
+        return "{" + seq + "}";  // not found
+    }
+
+    double getDahProbability(uint32_t duration_ms) {
+        double start_interp = 1.5 * time_unit_ms_;
+        double end_interp = 2.5 * time_unit_ms_;
+
+        if (duration_ms <= start_interp) return 0.0;
+        if (duration_ms >= end_interp) return 1.0;
+        return ((double)(duration_ms)-start_interp) / (end_interp - start_interp);
+    }
+
+    size_t findDecisionBoundary(uint32_t* sorted_data, size_t sorted_data_size) {
+        if (sorted_data_size < 4) return 0;
+
+        size_t best_split_index = 0;
+        uint32_t max_diff = 0;
+
+        for (size_t i = 1; i < sorted_data_size; ++i) {
+            uint32_t diff = sorted_data[i] - sorted_data[i - 1];
+            if (diff > sorted_data[i - 1] * 0.5 && diff > max_diff) {
+                max_diff = diff;
+                best_split_index = i;
+            }
+        }
+        return best_split_index;
+    }
+
+    bool calculatePulseUnit(double& unit, double& confidence) {
+        if (pulse_history_.size() < 10) return false;
+        uint32_t sorted_pulses[pulse_history_.size()];
+        pulse_history_.copy_to_array(sorted_pulses);
+        sort_uint32(sorted_pulses, pulse_history_.size());
+
+        size_t split_index = findDecisionBoundary(sorted_pulses, pulse_history_.size());
+        if (split_index == 0 || split_index < 3 || (pulse_history_.size() - split_index) < 2) {
+            return false;
+        }
+        double dit_sum = sum_uint32_range(sorted_pulses, 0, split_index);
+        double dah_sum = sum_uint32_range(sorted_pulses, split_index, pulse_history_.size());
+
+        double avg_dit = dit_sum / split_index;
+        double avg_dah = dah_sum / (pulse_history_.size() - split_index);
+        if (avg_dah <= avg_dit) return false;
+
+        double ratio = avg_dah / avg_dit;
+        if (ratio > 1.5 && ratio < 5.0) {
+            unit = avg_dit;
+            double tmpabs = ratio - 3.0;
+            if (tmpabs < 0) tmpabs *= -1;
+            tmpabs /= 3.0;
+            tmpabs = 1.0 - tmpabs;
+            if (tmpabs < 0) tmpabs = 0;
+            confidence = tmpabs;  // 0..1
+            return true;
+        }
+
+        return false;
+    }
+
+    bool calculateGapUnit(double& unit, double& confidence) {
+        if (pulse_gaps_.size() < 10) return false;
+        double threshold = getInterElementThreshold();
+        double valid_gaps[pulse_gaps_.size()];
+        size_t valid_count = 0;
+        for (size_t i = 0; i < pulse_gaps_.size(); i++) {
+            double gap = pulse_gaps_[i];
+            if (gap <= threshold) {
+                valid_gaps[valid_count++] = gap;
+            }
+        }
+        if (valid_count < 2) {
+            return false;
+        }
+        double sum = sum_double_range(valid_gaps, 0, valid_count);
+        size_t count_to_average = valid_count;
+
+        if (count_to_average > 0) {
+            unit = sum / count_to_average;
+            confidence = 0.8;
+            return true;
+        }
+
+        return false;
+    }
+
+    double sum_uint32_range(const uint32_t* data, size_t start, size_t end) {
+        double sum = 0.0;
+        for (size_t i = start; i < end; i++) {
+            sum += data[i];
+        }
+        return sum;
+    }
+    double sum_double_range(const double* data, size_t start, size_t end) {
+        double sum = 0.0;
+        for (size_t i = start; i < end; i++) {
+            sum += data[i];
+        }
+        return sum;
+    }
+
+    void sort_uint32(uint32_t* data, size_t size) {
+        if (size < 2)
+            return;
+
+        for (size_t i = 1; i < size; i++) {
+            uint32_t key = data[i];
+            size_t j = i;
+
+            while (j > 0 && data[j - 1] > key) {
+                data[j] = data[j - 1];
+                j--;
+            }
+
+            data[j] = key;
+        }
+    }
+
+    double clamp_double(double value, double min_val, double max_val) {
+        if (value < min_val)
+            return min_val;
+        else if (value > max_val)
+            return max_val;
+        else
+            return value;
+    }
+
+    void updateLearning() {
+        double pulse_unit = -1.0, pulse_confidence = 0.0;
+        double gap_unit = -1.0, gap_confidence = 0.0;
+
+        bool pulse_success = calculatePulseUnit(pulse_unit, pulse_confidence);
+        bool gap_success = calculateGapUnit(gap_unit, gap_confidence);
+
+        double new_time_unit = -1.0;
+        if (pulse_success && pulse_confidence > 0.5) {
+            new_time_unit = pulse_unit;
+        } else if (pulse_success && gap_success) {
+            gap_confidence = 0.2;
+            double total_confidence = pulse_confidence + gap_confidence;
+            new_time_unit = (pulse_unit * pulse_confidence + gap_unit * gap_confidence) / total_confidence;
+        } else if (gap_success) {
+            new_time_unit = gap_unit;
+        } else {
+            return;
+        }
+
+        double max_change = time_unit_ms_ * 0.25;
+        new_time_unit = clamp_double(new_time_unit, time_unit_ms_ - max_change, time_unit_ms_ + max_change);
+        double DEFAULT_TIME_UNIT = 160.0;
+        double BASE_LEARNING_RATE = 0.05;
+        double MAX_LEARNING_RATE = 0.25;
+        double tudeltaabs = new_time_unit - DEFAULT_TIME_UNIT;
+        if (tudeltaabs < 0) tudeltaabs *= -1;
+        double deviation_from_default = tudeltaabs / DEFAULT_TIME_UNIT;
+        double tpp = deviation_from_default * 2.0;
+        if (tpp > 1) tpp = 1;
+        double learning_factor = BASE_LEARNING_RATE + (MAX_LEARNING_RATE - BASE_LEARNING_RATE) * tpp;
+
+        time_unit_ms_ = (time_unit_ms_ * (1.0 - learning_factor)) + (new_time_unit * learning_factor);
+    }
+
+    size_t morse_table_size_ = 50;
+    MorseEntry morse_table_[50] = {
+        {".-", "A"},
+        {"-...", "B"},
+        {"-.-.", "C"},
+        {"-..", "D"},
+        {".", "E"},
+        {"..-.", "F"},
+        {"--.", "G"},
+        {"....", "H"},
+        {"..", "I"},
+        {".---", "J"},
+        {"-.-", "K"},
+        {".-..", "L"},
+        {"--", "M"},
+        {"-.", "N"},
+        {"---", "O"},
+        {".--.", "P"},
+        {"--.-", "Q"},
+        {".-.", "R"},
+        {"...", "S"},
+        {"-", "T"},
+        {"..-", "U"},
+        {"...-", "V"},
+        {".--", "W"},
+        {"-..-", "X"},
+        {"-.--", "Y"},
+        {"--..", "Z"},
+        {".----", "1"},
+        {"..---", "2"},
+        {"...--", "3"},
+        {"....-", "4"},
+        {".....", "5"},
+        {"-....", "6"},
+        {"--...", "7"},
+        {"---..", "8"},
+        {"----.", "9"},
+        {"-----", "0"},
+        {".-.-.-", "."},
+        {"..--..", "?"},
+        {"-.-.--", "!"},
+        {"--..--", ","},
+        {"-...-", "="},
+        {"-..-.", "/"},
+        {".--.-.", "@"},
+        {"---...", ":"},
+        {"-....-", "-"},
+        {".----.", "'"},
+        {".-..-.", "\""},
+        {"-.--.", "("},
+        {"-.--.-", ")"},
+        {".-.-.", "+"}};
+};
+
+}  // namespace ui::external_app::morse_radio
+
+#endif  // __MORSEDECODER_HPP__

firmware/application/external/morse_radio/ui_morse_radio.cpp

@@ -0,0 +1,282 @@
+#include "ui_morse_radio.hpp"
+#include "portapack_persistent_memory.hpp"
+
+using namespace portapack;
+
+namespace ui::external_app::morse_radio {
+
+MorseRadioView::MorseRadioView(ui::NavigationView& nav)
+    : nav_(nav) {
+    baseband::run_prepared_image(portapack::memory::map::m4_code.base());
+    add_children({&rssi,
+                  &field_rf_amp,
+                  &field_lna,
+                  &field_vga,
+                  &field_volume,
+                  &field_frequency,
+                  &txt_last,
+                  &txt_speed,
+                  &txt_freq,
+                  &txt_clip,
+                  &options_mode,
+                  &btn_clear,
+                  &console_text,
+                  &labels,
+                  &chk_log,
+                  &field_squelch});
+    field_frequency.set_step(100);
+
+    btn_clear.on_select = [this](Button&) {
+        console_text.clear(true);
+        txt_last.set("");
+        time_stamp = false;
+        if (logger && save_log)
+            logger->init_daily_log(logs_dir);
+    };
+
+    field_squelch.on_change = [this](int32_t v) {
+        receiver_model.set_squelch_level(v);
+    };
+
+    options_mode.on_change = [this](size_t, int32_t mode) {
+        audio::output::stop();
+        receiver_model.disable();
+        morse_decoder_.resetLearning();
+        if (mode == MORSE_NFM) {
+            receiver_model.set_am_configuration(4);
+            receiver_model.set_modulation(ReceiverModel::Mode::NarrowbandFMAudio);
+            field_squelch.set_style(Theme::getInstance()->option_active);
+            field_squelch.set_focusable(true);
+            field_squelch.set_value(receiver_model.squelch_level());
+            audio::set_rate(audio::Rate::Hz_24000);
+        } else {
+            audio::set_rate(audio::Rate::Hz_12000);
+            receiver_model.set_modulation(ReceiverModel::Mode::AMAudio);
+            if (mode == MORSE_AM_CW || mode == MORSE_AM_DSB)
+                receiver_model.set_am_configuration(7);
+            else if (mode == MORSE_AM_USB)
+                receiver_model.set_am_configuration(9);
+            else  // LSB
+                receiver_model.set_am_configuration(10);
+            field_squelch.set_style(Theme::getInstance()->fg_dark);
+            field_squelch.set_focusable(false);
+        }
+        baseband::set_moreserx_config(mode);
+        saved_mode = mode;
+
+        audio::output::start();
+        receiver_model.set_headphone_volume(receiver_model.headphone_volume());  // WM8731 hack.
+
+        receiver_model.set_sampling_rate(3072000);
+        receiver_model.set_baseband_bandwidth(1750000);
+        receiver_model.enable();
+    };
+    options_mode.set_selected_index(saved_mode);
+
+    logger = std::make_unique<MorseLogger>();
+    chk_log.on_select = [this](Checkbox&, bool save) {
+        save_log = save;
+        if (logger && save_log)
+            logger->init_daily_log(logs_dir);
+    };
+}
+
+void MorseLogger::init_daily_log(const std::filesystem::path& log_dir) {
+    auto now = rtc_time::now();
+    std::string pattern = "morse_";
+    uint16_t y = now.year();
+    pattern += (char)('0' + (y / 1000) % 10);
+    pattern += (char)('0' + (y / 100) % 10);
+    pattern += (char)('0' + (y / 10) % 10);
+    pattern += (char)('0' + (y % 10));
+
+    uint8_t m = now.month();
+    pattern += (char)('0' + (m / 10) % 10);
+    pattern += (char)('0' + (m % 10));
+
+    uint8_t d = now.day();
+    pattern += (char)('0' + (d / 10) % 10);
+    pattern += (char)('0' + (d % 10));
+
+    pattern += "_???.TXT";
+
+    auto full_pattern_path = log_dir / pattern;
+    auto final_path = next_filename_matching_pattern(full_pattern_path);
+    if (!final_path.empty()) {
+        this->append(final_path);
+    }
+}
+
+void MorseLogger::radio_set_log(const std::string& morse_mode) {
+    int64_t freq = receiver_model.target_frequency();
+    std::string header = "Freq:" + to_string_rounded_freq(freq, 4);
+    header += "MHz, ";
+    header += "RX MODE:" + morse_mode;
+    header += "\r\nMessage:";
+    log_file.write_raw(header);
+}
+
+bool MorseLogger::on_packet(const std::string& content, bool time, const std::string& morse_mode) {
+    if (!time) {
+        log_file.write_raw_no_newline("\r\n\r\n");
+        auto timestamp = to_string_datetime(rtc_time::now(), YMDHMS);
+        log_file.write_raw("[" + timestamp + "] ");
+        radio_set_log(morse_mode);
+        char_count = 0;
+        time = true;
+    }
+
+    if (content.empty()) return time;
+    std::string s;
+    for (char c : content) {
+        s = c;
+        if ((char_count >= 35 && c == ' ') || (char_count >= 47)) {
+            log_file.write_raw_no_newline("\r\n");
+
+            if (c != ' ') {
+                log_file.write_raw_no_newline(s);
+                char_count = 1;
+            } else {
+                char_count = 0;
+            }
+        } else {
+            log_file.write_raw_no_newline(s);
+            char_count++;
+        }
+    }
+
+    return time;
+}
+
+MorseRadioView::~MorseRadioView() {
+    receiver_model.disable();
+    baseband::shutdown();
+    audio::output::stop();
+}
+
+void MorseRadioView::focus() {
+    field_frequency.focus();
+    txt_clip.set_style(Theme::getInstance()->fg_red);
+    txt_clip.hidden(true);
+}
+
+void MorseRadioView::check_for_timeout() {
+    uint64_t now = chTimeNow();
+    if (last_activity_time == 0) {
+        last_activity_time = now;
+        return;
+    }
+    uint64_t quiet_duration = now - last_activity_time;
+    if (quiet_duration >= 60000) {
+        morse_decoder_.resetLearning();
+        time_stamp = false;
+        last_activity_time = now;
+    }
+}
+
+int32_t MorseRadioView::ProcessSignal(int32_t sig_time_us) {
+    int8_t sign = (sig_time_us > 0) ? 1 : ((sig_time_us < 0) ? -1 : 0);
+    int32_t result = 0;
+
+    if (last_sign_ == 0) {
+        last_sign_ = sign;
+        accumulator_us_ = sig_time_us;
+        long_pause_sent_ = false;
+        return 0;
+    }
+    if (sign == last_sign_) {
+        accumulator_us_ += sig_time_us;
+
+        if (sign < 0) {
+            int32_t threshold_us = morse_decoder_.getInterWordThreshold() * 1000;
+            if (!long_pause_sent_ && accumulator_us_ <= -threshold_us) {
+                result = accumulator_us_ / 1000;
+                long_pause_sent_ = true;
+            }
+        }
+    } else {
+        // state change
+        if (!long_pause_sent_) {
+            result = accumulator_us_ / 1000;
+        } else {
+            result = 0;
+        }
+        accumulator_us_ = sig_time_us;
+        last_sign_ = sign;
+        long_pause_sent_ = false;
+    }
+    return result;
+}
+
+void MorseRadioView::on_data(const MorseRXDataMessage* message) {
+    int32_t r;
+
+    txt_clip.hidden(!message->clipped);
+
+    for (uint8_t i = 0; i <= message->state_cnt; ++i) {
+        r = ProcessSignal(message->state_durations[i]);
+        auto result = morse_decoder_.handleInput((r != 0) ? r : 0);
+        if (result.isValid()) {
+            last_activity_time = chTimeNow();  // start reset timer on valid input
+            writeCharToConsole(result.text, result.confidence);
+            if (logger && save_log) {
+                time_stamp = logger->on_packet(result.text, time_stamp, options_mode.selected_index_name());
+            }
+            float dah_time = morse_decoder_.getCurrentTimeUnit() * 3.0f;
+            if (dah_time > 0) {
+                uint16_t wpm = (uint16_t)(3600.0f / (dah_time + 18.0f) + 0.5f);
+                txt_speed.set(to_string_dec_uint(wpm));
+            }
+        }
+    }
+}
+
+void MorseRadioView::on_freq(const MorseRXfreqMessage* message) {
+    std::string ret = " ";
+    uint32_t freq = message->measured_frequency;
+    if (freq < 301) {
+        ret = "<";
+        freq = 300;
+    }
+    if (freq > 2299) {
+        freq = 2300;
+        ret = ">";
+    }
+    if (freq < 400 || freq > 1400)
+        txt_freq.set_style(Theme::getInstance()->fg_red);
+    else if (freq <= 580 || freq >= 1220)
+        txt_freq.set_style(Theme::getInstance()->fg_yellow);
+    else
+        txt_freq.set_style(Theme::getInstance()->fg_green);
+    ret += to_string_dec_uint(freq);
+    txt_freq.set(ret);
+}
+
+void MorseRadioView::writeCharToConsole(const std::string& ch, double confidence) {
+    if (ch.empty()) {
+        return;
+    }
+
+    txt_last.set(morse_decoder_.getLastSequence().c_str());
+
+    last_color_id = color_id;
+    std::string color = "";
+
+    if (ch == " ") {
+        color_id = 0;
+    } else if (ch[0] == '{') {  // no match
+        color_id = 0;
+    } else {
+        if (confidence < 0.8)
+            color_id = 1;
+        else if (confidence < 0.9)
+            color_id = 2;
+        else
+            color_id = 3;
+    }
+    color = arr_color[color_id];
+    last_color_id = color_id;
+    console_text.write(color + ch);
+}
+
+}  // namespace ui::external_app::morse_radio

firmware/application/external/morse_radio/ui_morse_radio.hpp

@@ -0,0 +1,188 @@
+/*
+ * Copyright (C) 2026 Pezsma
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __MORSE_RADIO_H__
+#define __MORSE_RADIO_H__
+
+#include "ui.hpp"
+#include "ui_widget.hpp"
+#include "ui_navigation.hpp"
+#include "string_format.hpp"
+#include "external_app.hpp"
+#include "ui_freq_field.hpp"
+#include "radio_state.hpp"
+#include "portapack.hpp"
+#include "message.hpp"
+#include "audio.hpp"
+#include "baseband_api.hpp"
+#include "receiver_model.hpp"
+#include "tone_key.hpp"
+#include "log_file.hpp"
+#include "file_path.hpp"
+#include "file.hpp"
+#include "rtc_time.hpp"
+#include "morsedecoder.hpp"
+
+#include <cstdint>
+
+namespace ui::external_app::morse_radio {
+
+class MorseRadioView;
+
+class MorseLogger {
+   public:
+    Optional<File::Error> append(const std::filesystem::path& filename) {
+        return log_file.append(filename);
+    }
+
+    void init_daily_log(const std::filesystem::path& log_dir);
+    bool on_packet(const std::string& content, bool time, const std::string& morse_mode);
+    void radio_set_log(const std::string& morse_mode);
+
+   private:
+    LogFile log_file{};
+    uint8_t char_count{0};  // log file line break
+};
+
+class MorseRadioView : public ui::View {
+   public:
+    MorseRadioView(ui::NavigationView& nav);
+    ~MorseRadioView();
+    std::string title() const override {
+        return "Morse";
+    }
+    void focus() override;
+
+   private:
+    void writeCharToConsole(const std::string& ch, double confidence);
+    void on_data(const MorseRXDataMessage* message);
+    void on_freq(const MorseRXfreqMessage* message);
+    void on_message(const Message* const p);
+    void check_for_timeout();
+    int32_t ProcessSignal(int32_t sig_time_us);
+    ui::NavigationView& nav_;
+    MorseDecoder morse_decoder_{};
+    RxRadioState radio_state_{};
+    std::unique_ptr<MorseLogger> logger{};
+
+    enum morse_modes : uint8_t {
+        MORSE_AM_CW = 0,
+        MORSE_NFM,
+        MORSE_AM_DSB,
+        MORSE_AM_USB,
+        MORSE_AM_LSB,
+    };
+    uint8_t saved_mode = MORSE_AM_CW;
+
+    app_settings::SettingsManager settings_{
+        "rx_morse_radio",
+        app_settings::Mode::RX,
+        {
+            {"cwmode"sv, &saved_mode},
+        }};
+
+    RxFrequencyField field_frequency{
+        {UI_POS_X(0), UI_POS_Y(0)},
+        nav_};
+    RFAmpField field_rf_amp{
+        {UI_POS_X(13), UI_POS_Y(0)}};
+    LNAGainField field_lna{
+        {UI_POS_X(15), UI_POS_Y(0)}};
+    VGAGainField field_vga{
+        {UI_POS_X(18), UI_POS_Y(0)}};
+    RSSI rssi{
+        {UI_POS_X(21), UI_POS_Y(0), UI_POS_WIDTH_REMAINING(24), 4}};
+
+    AudioVolumeField field_volume{
+        {UI_POS_X_RIGHT(2), UI_POS_Y(0)}};
+
+    NumberField field_squelch{
+        {UI_POS_X(10), UI_POS_Y(1)},
+        2,
+        {0, 99},
+        1,
+        ' ',
+    };
+    ui::Text txt_speed{{UI_POS_X(23), UI_POS_Y(1), UI_POS_WIDTH(3), UI_POS_HEIGHT(1)}, "??"};
+    ui::Text txt_last{{UI_POS_X(12), UI_POS_Y(4), UI_POS_WIDTH_REMAINING(12), UI_POS_HEIGHT(1)}, ""};
+    ui::Text txt_freq{{UI_POS_X(21), UI_POS_Y(2), UI_POS_WIDTH(5), UI_POS_HEIGHT(1)}, "??"};
+    ui::Text txt_clip{{UI_POS_X(15), UI_POS_Y(3), UI_POS_WIDTH(5), UI_POS_HEIGHT(1)}, "clipping"};
+    ui::Console console_text{{UI_POS_X(0), UI_POS_Y(5), UI_POS_MAXWIDTH, UI_POS_HEIGHT_REMAINING(7)}};
+    ui::Labels labels{
+        {{UI_POS_X(0), UI_POS_Y(1)}, "Squelch:", Theme::getInstance()->fg_light->foreground},
+        {{UI_POS_X(15), UI_POS_Y(1)}, "Speed:", Theme::getInstance()->fg_light->foreground},
+        {{UI_POS_X(26), UI_POS_Y(1)}, "wpm", Theme::getInstance()->fg_light->foreground},
+        {{UI_POS_X(0), UI_POS_Y(4)}, "Last seq.:", Theme::getInstance()->fg_light->foreground},
+        {{UI_POS_X(15), UI_POS_Y(2)}, "Tone:", Theme::getInstance()->fg_light->foreground},
+        {{UI_POS_X(27), UI_POS_Y(2)}, "Hz", Theme::getInstance()->fg_light->foreground}};
+
+    ui::OptionsField options_mode{
+        {UI_POS_X(8), UI_POS_Y(2) + 4},  // +4 to align with 'Log' checkbox text
+        6,
+        {
+            {"AM/CW", MORSE_AM_CW},
+            {"NFM", MORSE_NFM},
+            {"AM/DSB", MORSE_AM_DSB},
+            {"AM/USB", MORSE_AM_USB},
+            {"AM/LSB", MORSE_AM_LSB},
+        }};
+
+    Checkbox chk_log{{UI_POS_X(0), UI_POS_Y(2)}, 12, "Log", false};
+    ui::Button btn_clear{{UI_POS_X(0), UI_POS_Y_BOTTOM(2), UI_POS_WIDTH(6), UI_POS_HEIGHT(1)}, "CLR"};
+
+    std::string arr_color[4] = {STR_COLOR_WHITE, STR_COLOR_RED, STR_COLOR_YELLOW, STR_COLOR_GREEN};
+
+    bool long_pause_sent_{false};
+    bool save_log{false};
+    bool reset_triggered_{false};
+    bool time_stamp{false};
+    uint8_t last_color_id{255};
+    uint8_t color_id{255};
+    int8_t last_sign_{0};
+    uint8_t space_timer{0};
+    int32_t accumulator_us_{0};
+    uint64_t last_activity_time{0};
+
+    MessageHandlerRegistration message_handler_packet{
+        Message::ID::MorseRXData,
+        [this](Message* const p) {
+            const auto message = static_cast<const MorseRXDataMessage*>(p);
+            this->on_data(message);
+        }};
+
+    MessageHandlerRegistration message_handler_freq{
+        Message::ID::MorseRXfreq,
+        [this](Message* const p) {
+            const auto message = static_cast<const MorseRXfreqMessage*>(p);
+            this->on_freq(message);
+        }};
+
+    MessageHandlerRegistration message_handler_framesync{
+        Message::ID::DisplayFrameSync,
+        [this](const Message* const p) {
+            (void)p;
+            this->check_for_timeout();
+        }};
+};
+
+}  // namespace ui::external_app::morse_radio
+
+#endif  // __MORSE_RADIO_H__

firmware/application/external/morseradiotx/main.cpp

@@ -0,0 +1,87 @@
+/*
+ * Copyright (C) 2026 Pezsma
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "ui.hpp"
+#include "ui_morse_radiotx.hpp"
+#include "ui_navigation.hpp"
+#include "external_app.hpp"
+
+namespace ui::external_app::morseradiotx {
+
+void initialize_app(NavigationView& nav) {
+    nav.push<MorseRadiotxView>();
+}
+
+}  // namespace ui::external_app::morseradiotx
+
+extern "C" {
+
+__attribute__((section(".external_app.app_morseradiotx.application_information"), used))
+application_information_t _application_information_morseradiotx = {
+    /*.memory_location = */ (uint8_t*)0x00000000,
+    /*.externalAppEntry = */ ui::external_app::morseradiotx::initialize_app,
+    /*.header_version = */ CURRENT_HEADER_VERSION,
+    /*.app_version = */ VERSION_MD5,
+
+    /*.app_name = */ "Morse TX",
+    /*.bitmap_data = */ {
+        0x00,
+        0x00,
+        0xFE,
+        0x7F,
+        0xFF,
+        0xFF,
+        0xBB,
+        0xD0,
+        0xFF,
+        0xFF,
+        0xFF,
+        0xFF,
+        0x0B,
+        0xE1,
+        0xFF,
+        0xFF,
+        0xFF,
+        0xFF,
+        0xEB,
+        0xD0,
+        0xFF,
+        0xFF,
+        0xFE,
+        0x7F,
+        0x70,
+        0x00,
+        0x30,
+        0x00,
+        0x10,
+        0x00,
+        0x00,
+        0x00,
+    },
+    /*.icon_color = */ ui::Color::yellow().v,
+    /*.menu_location = */ app_location_t::TX,
+    /*.desired_menu_position = */ -1,
+
+    /*.m4_app_tag = portapack::spi_flash::image_tag_none */ {'P', 'M', 'R', 'T'},
+    /*.m4_app_offset = */ 0x00000000,  // will be filled at compile time
+};
+
+}  // extern "C"

firmware/application/external/morseradiotx/morsedecoder.hpp

@@ -0,0 +1,389 @@
+#ifndef __MORSEDECODER_HPP__
+#define __MORSEDECODER_HPP__
+
+/*
+ * Copyright (C) 2025 Pezsma
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include <cstdint>
+#include <string>
+#include "string_format.hpp"
+
+namespace ui::external_app::morseradiotx {
+
+class MorseRingBuffer {
+   public:
+    MorseRingBuffer()
+        : head_(0), tail_(0), count_(0) {}
+
+    void push_back(const uint32_t& value) {
+        data_[head_] = value;
+        head_ = (head_ + 1) % 40;
+        if (count_ < 40) {
+            count_++;
+        } else {
+            // overwrite oldest element
+            tail_ = (tail_ + 1) % 40;
+        }
+    }
+
+    void pop_front() {
+        if (count_ > 0) {
+            tail_ = (tail_ + 1) % 40;
+            count_--;
+        }
+    }
+
+    size_t size() const { return count_; }
+    bool empty() const { return count_ == 0; }
+    const uint32_t& front() const { return data_[tail_]; }
+    // Access by index (0 = oldest)
+    uint32_t operator[](size_t idx) const {
+        return data_[(tail_ + idx) % 40];
+    }
+    // Convert to vector-like access for sorting etc.
+    void copy_to_array(uint32_t* out) const {
+        for (size_t i = 0; i < count_; ++i)
+            out[i] = (*this)[i];
+    }
+
+    void clear() {
+        head_ = 0;
+        tail_ = 0;
+        count_ = 0;
+    }
+
+   private:
+    uint32_t data_[40];
+    size_t head_;
+    size_t tail_;
+    size_t count_;
+};
+
+class MorseDecoder {
+   public:
+    struct DecodeResult {
+        std::string text = "";
+        double confidence = 0.0;
+
+        bool isValid() const {
+            return !text.empty();
+        }
+    };
+
+    struct MorseEntry {
+        std::string code;
+        std::string letter;
+    };
+
+    MorseDecoder() {}
+
+    void resetLearning() {
+        time_unit_ms_ = 119.0;
+        current_sequence_ = "";
+        last_sequence_ = "";
+        last_confidence_ = 0.0;
+        pulse_history_.clear();
+        pulse_gaps_.clear();
+    }
+
+    const char* get_morse_pattern(char c) {
+        char upper_c = (c >= 'a' && c <= 'z') ? c - 32 : c;
+
+        for (size_t i = 0; i < morse_table_size_; ++i) {
+            if (morse_table_[i].letter[0] == upper_c) {
+                return morse_table_[i].code.c_str();
+            }
+        }
+        return nullptr;
+    }
+
+    DecodeResult
+    handleInput(int32_t duration_ms) {
+        DecodeResult result = {"", 0.0};
+
+        if (duration_ms < 5 && duration_ms > -5) return result;
+
+        if (duration_ms > 0) {
+            pulse_history_.push_back(duration_ms);
+            double dah_prob = getDahProbability(duration_ms);
+            current_sequence_ += (dah_prob > 0.5) ? '-' : '.';
+            last_confidence_ = (dah_prob > 0.5) ? dah_prob : (1.0 - dah_prob);
+            last_sequence_ = current_sequence_;
+
+        } else {
+            uint32_t gap_duration = -duration_ms;
+            pulse_gaps_.push_back(gap_duration);
+
+            if (gap_duration >= getInterCharThreshold() && !current_sequence_.empty()) {
+                result.text = lookupMorse(current_sequence_);
+
+                result.confidence = (result.text[0] != '{') ? last_confidence_ : 0.0;
+                if (gap_duration >= getInterWordThreshold()) {
+                    result.text += " ";
+                }
+                current_sequence_ = "";
+            }
+        }
+
+        updateLearning();
+
+        return result;
+    }
+
+    inline double getInterElementThreshold() { return time_unit_ms_ * 0.8; }
+    inline double getInterCharThreshold() { return time_unit_ms_ * 2.5; }
+    inline double getInterWordThreshold() { return time_unit_ms_ * 6.0; }
+
+    inline double getCurrentTimeUnit() { return time_unit_ms_; }
+    inline std::string getLastSequence() { return last_sequence_; }
+
+   private:
+    std::string current_sequence_ = "";
+    std::string last_sequence_ = "";
+    double time_unit_ms_ = 119.0;
+    double last_confidence_ = 0.0;
+    MorseRingBuffer pulse_history_{};
+    MorseRingBuffer pulse_gaps_{};
+
+    std::string lookupMorse(const std::string& seq) {
+        for (size_t i = 0; i < morse_table_size_; i++) {
+            if (seq == morse_table_[i].code)
+                return morse_table_[i].letter;
+        }
+        return "{" + seq + "}";  // not found
+    }
+
+    double getDahProbability(uint32_t duration_ms) {
+        double start_interp = 1.5 * time_unit_ms_;
+        double end_interp = 2.5 * time_unit_ms_;
+
+        if (duration_ms <= start_interp) return 0.0;
+        if (duration_ms >= end_interp) return 1.0;
+        return ((double)(duration_ms)-start_interp) / (end_interp - start_interp);
+    }
+
+    size_t findDecisionBoundary(uint32_t* sorted_data, size_t sorted_data_size) {
+        if (sorted_data_size < 4) return 0;
+
+        size_t best_split_index = 0;
+        uint32_t max_diff = 0;
+
+        for (size_t i = 1; i < sorted_data_size; ++i) {
+            uint32_t diff = sorted_data[i] - sorted_data[i - 1];
+            if (diff > sorted_data[i - 1] * 0.5 && diff > max_diff) {
+                max_diff = diff;
+                best_split_index = i;
+            }
+        }
+        return best_split_index;
+    }
+
+    bool calculatePulseUnit(double& unit, double& confidence) {
+        if (pulse_history_.size() < 10) return false;
+        uint32_t sorted_pulses[pulse_history_.size()];
+        pulse_history_.copy_to_array(sorted_pulses);
+        sort_uint32(sorted_pulses, pulse_history_.size());
+
+        size_t split_index = findDecisionBoundary(sorted_pulses, pulse_history_.size());
+        if (split_index == 0 || split_index < 3 || (pulse_history_.size() - split_index) < 2) {
+            return false;
+        }
+        double dit_sum = sum_uint32_range(sorted_pulses, 0, split_index);
+        double dah_sum = sum_uint32_range(sorted_pulses, split_index, pulse_history_.size());
+
+        double avg_dit = dit_sum / split_index;
+        double avg_dah = dah_sum / (pulse_history_.size() - split_index);
+        if (avg_dah <= avg_dit) return false;
+
+        double ratio = avg_dah / avg_dit;
+        if (ratio > 1.5 && ratio < 5.0) {
+            unit = avg_dit;
+            double tmpabs = ratio - 3.0;
+            if (tmpabs < 0) tmpabs *= -1;
+            tmpabs /= 3.0;
+            tmpabs = 1.0 - tmpabs;
+            if (tmpabs < 0) tmpabs = 0;
+            confidence = tmpabs;  // 0..1
+            return true;
+        }
+
+        return false;
+    }
+
+    bool calculateGapUnit(double& unit, double& confidence) {
+        if (pulse_gaps_.size() < 10) return false;
+        double threshold = getInterElementThreshold();
+        double valid_gaps[pulse_gaps_.size()];
+        size_t valid_count = 0;
+        for (size_t i = 0; i < pulse_gaps_.size(); i++) {
+            double gap = pulse_gaps_[i];
+            if (gap <= threshold) {
+                valid_gaps[valid_count++] = gap;
+            }
+        }
+        if (valid_count < 2) {
+            return false;
+        }
+        double sum = sum_double_range(valid_gaps, 0, valid_count);
+        size_t count_to_average = valid_count;
+
+        if (count_to_average > 0) {
+            unit = sum / count_to_average;
+            confidence = 0.8;
+            return true;
+        }
+
+        return false;
+    }
+
+    double sum_uint32_range(const uint32_t* data, size_t start, size_t end) {
+        double sum = 0.0;
+        for (size_t i = start; i < end; i++) {
+            sum += data[i];
+        }
+        return sum;
+    }
+    double sum_double_range(const double* data, size_t start, size_t end) {
+        double sum = 0.0;
+        for (size_t i = start; i < end; i++) {
+            sum += data[i];
+        }
+        return sum;
+    }
+
+    void sort_uint32(uint32_t* data, size_t size) {
+        if (size < 2)
+            return;
+
+        for (size_t i = 1; i < size; i++) {
+            uint32_t key = data[i];
+            size_t j = i;
+
+            while (j > 0 && data[j - 1] > key) {
+                data[j] = data[j - 1];
+                j--;
+            }
+
+            data[j] = key;
+        }
+    }
+
+    double clamp_double(double value, double min_val, double max_val) {
+        if (value < min_val)
+            return min_val;
+        else if (value > max_val)
+            return max_val;
+        else
+            return value;
+    }
+
+    void updateLearning() {
+        double pulse_unit = -1.0, pulse_confidence = 0.0;
+        double gap_unit = -1.0, gap_confidence = 0.0;
+
+        bool pulse_success = calculatePulseUnit(pulse_unit, pulse_confidence);
+        bool gap_success = calculateGapUnit(gap_unit, gap_confidence);
+
+        double new_time_unit = -1.0;
+        if (pulse_success && pulse_confidence > 0.5) {
+            new_time_unit = pulse_unit;
+        } else if (pulse_success && gap_success) {
+            gap_confidence = 0.2;
+            double total_confidence = pulse_confidence + gap_confidence;
+            new_time_unit = (pulse_unit * pulse_confidence + gap_unit * gap_confidence) / total_confidence;
+        } else if (gap_success) {
+            new_time_unit = gap_unit;
+        } else {
+            return;
+        }
+
+        double max_change = time_unit_ms_ * 0.25;
+        new_time_unit = clamp_double(new_time_unit, time_unit_ms_ - max_change, time_unit_ms_ + max_change);
+        double DEFAULT_TIME_UNIT = 160.0;
+        double BASE_LEARNING_RATE = 0.05;
+        double MAX_LEARNING_RATE = 0.25;
+        double tudeltaabs = new_time_unit - DEFAULT_TIME_UNIT;
+        if (tudeltaabs < 0) tudeltaabs *= -1;
+        double deviation_from_default = tudeltaabs / DEFAULT_TIME_UNIT;
+        double tpp = deviation_from_default * 2.0;
+        if (tpp > 1) tpp = 1;
+        double learning_factor = BASE_LEARNING_RATE + (MAX_LEARNING_RATE - BASE_LEARNING_RATE) * tpp;
+
+        time_unit_ms_ = (time_unit_ms_ * (1.0 - learning_factor)) + (new_time_unit * learning_factor);
+    }
+
+    size_t morse_table_size_ = 50;
+    MorseEntry morse_table_[50] = {
+        {".-", "A"},
+        {"-...", "B"},
+        {"-.-.", "C"},
+        {"-..", "D"},
+        {".", "E"},
+        {"..-.", "F"},
+        {"--.", "G"},
+        {"....", "H"},
+        {"..", "I"},
+        {".---", "J"},
+        {"-.-", "K"},
+        {".-..", "L"},
+        {"--", "M"},
+        {"-.", "N"},
+        {"---", "O"},
+        {".--.", "P"},
+        {"--.-", "Q"},
+        {".-.", "R"},
+        {"...", "S"},
+        {"-", "T"},
+        {"..-", "U"},
+        {"...-", "V"},
+        {".--", "W"},
+        {"-..-", "X"},
+        {"-.--", "Y"},
+        {"--..", "Z"},
+        {".----", "1"},
+        {"..---", "2"},
+        {"...--", "3"},
+        {"....-", "4"},
+        {".....", "5"},
+        {"-....", "6"},
+        {"--...", "7"},
+        {"---..", "8"},
+        {"----.", "9"},
+        {"-----", "0"},
+        {".-.-.-", "."},
+        {"..--..", "?"},
+        {"-.-.--", "!"},
+        {"--..--", ","},
+        {"-...-", "="},
+        {"-..-.", "/"},
+        {".--.-.", "@"},
+        {"---...", ":"},
+        {"-....-", "-"},
+        {".----.", "'"},
+        {".-..-.", "\""},
+        {"-.--.", "("},
+        {"-.--.-", ")"},
+        {".-.-.", "+"}};
+};
+
+}  // namespace ui::external_app::morseradiotx
+
+#endif  // __MORSEDECODER_HPP__

firmware/application/external/morseradiotx/ui_morse_radiotx.cpp

@@ -0,0 +1,437 @@
+#include "ui_morse_radiotx.hpp"
+
+using namespace portapack;
+
+namespace ui::external_app::morseradiotx {
+
+static msg_t tx_thread_fn(void* arg) {
+    auto view = reinterpret_cast<MorseRadiotxView*>(arg);
+    chRegSetThreadName("morse_tx_thread");
+    view->transmit_morse_message();
+    return 0;
+}
+
+MorseRadiotxView::MorseRadiotxView(ui::NavigationView& nav)
+    : current_timings(calculate_morse_timings(20)),
+      nav_(nav) {
+    baseband::run_prepared_image(portapack::memory::map::m4_code.base());
+    add_children({&tx_view,
+                  &field_volume,
+                  &labels,
+                  &options_mode,
+                  &tone_,
+                  &wpm_,
+                  &txt_msg,
+                  &btn_message,
+                  &btn_calls,
+                  &chk_trans,
+                  &bandwidth,
+                  &chk_callsgn,
+                  &txt_last,
+                  &console_text,
+                  &btn_clear,
+                  &btn_ptt});
+
+    initial_switch_config_ = get_switches_repeat_config();
+
+    SwitchesState config = initial_switch_config_;
+    config[toUType(Switch::Sel)] = false;
+    set_switches_repeat_config(config);
+
+    audio::set_rate(audio::Rate::Hz_24000);
+
+    btn_clear.on_select = [this](Button&) {
+        console_text.clear(true);
+        txt_last.set("");
+    };
+
+    options_mode.on_change = [this](size_t, int32_t value) {
+        current_mode = (uint8_t)value;
+        baseband::set_morsetx_config(current_mode, tone, band);
+        ui_toggle();
+    };
+
+    tone_.on_change = [this](int32_t v) {
+        tone = static_cast<uint32_t>(v);
+        baseband::set_morsetx_config(current_mode, tone, band);
+    };
+
+    wpm_.on_change = [this](int16_t v) {
+        wpm = v;
+        current_timings = calculate_morse_timings(wpm);
+    };
+
+    bandwidth.on_change = [this](float v) {
+        band = v;
+        baseband::set_morsetx_config(current_mode, tone, band);
+    };
+
+    options_mode.set_selected_index(current_mode, true);
+    tone_.set_value(tone, true);
+    wpm_.set_value(wpm, true);
+    bandwidth.set_value(band, true);
+
+    btn_ptt.on_select = [this](Button&) {
+        if (button_touch) {
+            button_touch = false;
+            return;
+        }
+        button_was_selected = true;
+        onPress();
+    };
+
+    btn_ptt.on_touch_press = [this](Button&) {
+        button_touch = true;
+        button_was_selected = false;
+        onPress();
+    };
+    btn_ptt.on_touch_release = [this](Button&) {
+        if (chk_trans.value() && transmit) {
+            button_touch = true;
+            button_was_selected = false;
+            onRelease();
+        }
+    };
+
+    btn_message.on_select = [this, &nav](Button&) {
+        if (!transmit)
+            text_prompt(nav, msg_buffer, 27, ENTER_KEYBOARD_MODE_ALPHA, [this](std::string& buffer) {
+                msg_buffer = buffer;
+                txt_msg.set("[" + msg_buffer + "] ");
+            });
+    };
+
+    btn_calls.on_select = [this, &nav](Button&) {
+        if (!transmit) {
+            text_prompt(nav, call_sign, 10, ENTER_KEYBOARD_MODE_ALPHA, [this](std::string& buffer) {
+                call_sign = buffer;
+                if (call_sign.empty())
+                    btn_calls.set_text("call sign?");
+                else
+                    btn_calls.set_text(call_sign);
+            });
+        }
+    };
+
+    audio::output::start();
+    auto vol = field_volume.value();
+    field_volume.set_value(0);
+    field_volume.set_value(vol);
+
+    tx_view.on_start = [this]() {
+        if (!chk_trans.value() && msg_buffer.empty()) {
+            tx_view.set_transmitting(false);
+            return;
+        }
+        tx_view.focus();
+        if (!tx_thread && !thread_running) {
+            thread_running = true;
+            tx_thread = chThdCreateFromHeap(NULL, 1024, NORMALPRIO + 5, tx_thread_fn, this);
+            tx_view.set_transmitting(true);
+        }
+
+        else
+            tx_view.set_transmitting(false);
+    };
+
+    tx_view.on_stop = [this]() {
+        baseband::set_morsetx_key(false);
+        transmitter_model.disable();
+
+        if (tx_thread) {
+            chThdTerminate(tx_thread);
+            chThdWait(tx_thread);
+        }
+        transmit = false;
+        transmit_time = 0;
+        tx_thread = nullptr;
+        thread_running = false;
+        tx_view.set_transmitting(false);
+        ui_toggle();
+    };
+
+    tx_view.on_edit_frequency = [this, &nav]() {
+        auto new_view = nav.push<FrequencyKeypadView>(transmitter_model.target_frequency());
+        new_view->on_changed = [this](rf::Frequency f) {
+            transmitter_model.set_target_frequency(f);
+        };
+    };
+}
+
+MorseRadiotxView::~MorseRadiotxView() {
+    set_switches_repeat_config(initial_switch_config_);
+    if (tx_thread) {
+        chThdTerminate(tx_thread);
+        chThdWait(tx_thread);
+        if (!thread_running) tx_thread = nullptr;
+    }
+
+    transmitter_model.disable();
+    baseband::shutdown();
+    audio::output::stop();
+}
+
+void MorseRadiotxView::on_show() {
+    ptt_button_visibility(true);
+    start_time = 0;
+    end_time = 0;
+    transmit_time = 0;
+}
+
+void MorseRadiotxView::focus() {
+    options_mode.focus();
+}
+
+MorseRadiotxView::MorseTimings MorseRadiotxView::calculate_morse_timings(uint32_t wpm) {
+    MorseRadiotxView::MorseTimings t;
+    if (wpm < 10) wpm = 10;
+    if (wpm > 45) wpm = 45;
+    t.dot_ms = 1200 / wpm;
+
+    t.dash_ms = 3 * t.dot_ms;
+    t.symbol_gap = t.dot_ms;
+    t.char_gap = 3 * t.dot_ms;
+    t.word_gap = 7 * t.dot_ms;
+    return t;
+}
+
+void MorseRadiotxView::transmit_morse_message() {
+    std::string full_message = "";
+    // cal sign
+    if (chk_callsgn.value() && !call_sign.empty()) {
+        full_message = call_sign;
+        if (!chk_trans.value() && !msg_buffer.empty()) {
+            full_message += " " + msg_buffer;
+        }
+    } else {
+        if (!chk_trans.value()) full_message = msg_buffer;
+    }
+
+    if (full_message.empty() && !chk_trans.value()) {
+        ptt_button_visibility(false);
+        return;
+    }
+
+    // enable transmit
+    if (!transmit) {
+        transmit = true;
+        transmitter_model.enable();
+        ui_toggle();
+    }
+
+    for (size_t i = 0; i < full_message.length(); i++) {
+        if (chThdShouldTerminate()) break;
+
+        char c = full_message[i];
+
+        std::string s_char(1, c);
+        // space
+        if (c == ' ') {
+            console_text.write(" ");
+            chThdSleepMilliseconds(current_timings.word_gap);
+            continue;
+        }
+
+        const char* pattern = morse_decoder_.get_morse_pattern(c);
+
+        if (pattern != nullptr) {
+            txt_last.set(pattern);
+
+            // write blue char to console
+            console_text.write(STR_COLOR_BLUE + s_char);
+
+            // Morze (dih/dah) send
+            for (int j = 0; pattern[j] != '\0'; j++) {
+                baseband::set_morsetx_key(true);
+                if (pattern[j] == '.') {
+                    chThdSleepMilliseconds(current_timings.dot_ms);
+                } else if (pattern[j] == '-') {
+                    chThdSleepMilliseconds(current_timings.dash_ms);
+                }
+                if (chThdShouldTerminate()) break;
+                // pause between signs
+                baseband::set_morsetx_key(false);
+                chThdSleepMilliseconds(current_timings.symbol_gap);
+            }
+            if (chThdShouldTerminate()) break;
+            if (current_timings.char_gap > current_timings.symbol_gap) {
+                chThdSleepMilliseconds(current_timings.char_gap - current_timings.symbol_gap);
+            }
+        }
+    }
+
+    if (chk_trans.value()) ptt_button_visibility(false);
+    baseband::set_morsetx_key(false);
+    transmit_time = chTimeNow();
+    decode_timeout_calc = false;
+    thread_running = false;
+}
+
+void MorseRadiotxView::onPress() {
+    start_time = chTimeNow();
+    if (!transmit) {
+        transmit = true;
+        transmitter_model.enable();
+    }
+    baseband::set_morsetx_key(true);
+    if (end_time != 0) {
+        int64_t gap_delta = (chTimeNow() - end_time);
+        auto result = morse_decoder_.handleInput(-gap_delta);
+        if (result.isValid()) {
+            writeCharToConsole(result.text, result.confidence);
+        }
+    }
+    end_time = 0;
+    transmit_time = 0;
+    decode_timeout_calc = false;
+}
+
+void MorseRadiotxView::onRelease() {
+    end_time = chTimeNow();
+    transmit_time = end_time;
+    baseband::set_morsetx_key(false);
+    if (start_time != 0) {
+        int32_t press_delta = (end_time - start_time);
+        auto result = morse_decoder_.handleInput(press_delta);
+        if (result.isValid()) {
+            writeCharToConsole(result.text, result.confidence);
+        }
+    }
+    start_time = 0;
+    decode_timeout_calc = true;
+    baseband::request_beep_stop();
+}
+
+void MorseRadiotxView::writeCharToConsole(const std::string& ch, double confidence) {
+    if (ch.empty()) {
+        return;
+    }
+
+    txt_last.set(morse_decoder_.getLastSequence().c_str());
+
+    last_color_id = color_id;
+    std::string color = "";
+
+    if (ch == " ") {
+        color_id = 0;
+    } else if (ch[0] == '{') {  // no match
+        color_id = 0;
+    } else {
+        if (confidence == 1.5)
+            color_id = 4;
+        else if (confidence < 0.8)
+            color_id = 1;
+        else if (confidence < 0.9)
+            color_id = 2;
+        else
+            color_id = 3;
+    }
+    color = arr_color[color_id];
+    last_color_id = color_id;
+    console_text.write(color + ch);
+}
+
+void MorseRadiotxView::ptt_button_visibility(bool hidden) {
+    bool hiddenorig = btn_ptt.hidden();
+    if (hiddenorig != hidden) {
+        btn_ptt.hidden(hidden);
+        if (!hidden) btn_ptt.focus();
+        if (hidden) {
+            // hack fix until widget hidig problem is not solved.
+            auto r = btn_ptt.screen_rect();
+            Painter p;
+            p.fill_rectangle_unrolled8(r, Theme::getInstance()->fg_light->background);
+        }
+    }
+}
+
+void MorseRadiotxView::ui_toggle() {
+    // 0=AM, 1=FM, 2=DSB, 3=USB, 4=LSB
+
+    if (transmit) {
+        options_mode.set_style(Theme::getInstance()->fg_dark);
+        options_mode.set_focusable(false);
+        tone_.set_style(Theme::getInstance()->fg_dark);
+        tone_.set_focusable(false);
+        wpm_.set_style(Theme::getInstance()->fg_dark);
+        wpm_.set_focusable(false);
+        btn_message.set_style(Theme::getInstance()->fg_dark);
+        btn_calls.set_style(Theme::getInstance()->fg_dark);
+        chk_trans.set_style(Theme::getInstance()->fg_dark);
+        chk_trans.set_focusable(false);
+        bandwidth.set_style(Theme::getInstance()->fg_dark);
+        bandwidth.set_focusable(false);
+        chk_callsgn.set_style(Theme::getInstance()->fg_dark);
+        chk_callsgn.set_focusable(false);
+
+    } else {
+        options_mode.set_style(Theme::getInstance()->bg_darker);
+        options_mode.set_focusable(true);
+        wpm_.set_style(Theme::getInstance()->bg_darker);
+        wpm_.set_focusable(true);
+        btn_message.set_style(Theme::getInstance()->bg_darker);
+        btn_calls.set_style(Theme::getInstance()->bg_darker);
+        chk_trans.set_style(Theme::getInstance()->bg_darker);
+        chk_trans.set_focusable(true);
+        chk_callsgn.set_style(Theme::getInstance()->bg_darker);
+        chk_callsgn.set_focusable(true);
+        ptt_button_visibility(true);
+        tone_.set_style(Theme::getInstance()->bg_darker);
+        tone_.set_focusable(true);
+
+        if (current_mode == 1) {  // FM mode
+            bandwidth.set_style(Theme::getInstance()->bg_darker);
+            bandwidth.set_focusable(true);
+        } else {
+            bandwidth.set_style(Theme::getInstance()->fg_dark);
+            bandwidth.set_focusable(false);
+        }
+    }  // transmit false
+}
+
+inline bool MorseRadiotxView::tx_button_held() {
+    const auto switches_state = get_switches_state();
+    return switches_state[(size_t)ui::KeyEvent::Select];
+}
+
+void MorseRadiotxView::on_framesync() {
+    if (button_was_selected && !button_touch && !tx_button_held()) {
+        button_was_selected = false;
+        onRelease();
+    }
+
+    if (end_time != 0 && decode_timeout_calc) {
+        int64_t gap_delta = (chTimeNow() - end_time);
+
+        if (gap_delta >= morse_decoder_.getInterCharThreshold()) {
+            auto result = morse_decoder_.handleInput(-(int32_t)gap_delta);
+            if (result.isValid()) {
+                writeCharToConsole(result.text, result.confidence);
+            }
+        }
+        if (gap_delta >= morse_decoder_.getInterWordThreshold()) {
+            writeCharToConsole(" ", 1.0);
+            end_time = 0;
+            decode_timeout_calc = false;
+        }
+    }
+    if (transmit_time != 0 && transmit) {  // Tx disable if time is up
+        int64_t gap_delta = (chTimeNow() - transmit_time);
+        if (gap_delta >= ((morse_decoder_.getInterWordThreshold() * ((chk_trans.value()) ? 10 : 1)))) {
+            if (tx_thread) {
+                chThdTerminate(tx_thread);
+                chThdWait(tx_thread);
+            }
+            transmit = false;
+            tx_view.set_transmitting(false);
+            transmitter_model.disable();
+            thread_running = false;
+            tx_thread = nullptr;
+            transmit_time = 0;
+            if (!chk_trans.value()) writeCharToConsole(" ", 1.0);
+            ui_toggle();
+        }
+    }
+}
+
+}  // namespace ui::external_app::morseradiotx

firmware/application/external/morseradiotx/ui_morse_radiotx.hpp

@@ -0,0 +1,171 @@
+/*
+ * Copyright (C) 2026 Pezsma
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __MORSE_RADIOTX_H__
+#define __MORSE_RADIOTX_H__
+
+#include "ui.hpp"
+#include "ui_widget.hpp"
+#include "ui_navigation.hpp"
+#include "ui_language.hpp"
+#include "ui_painter.hpp"
+#include "ui_freq_field.hpp"
+#include "ui_transmitter.hpp"
+#include "ui_textentry.hpp"
+#include "string_format.hpp"
+#include "morsedecoder.hpp"
+#include "irq_controls.hpp"
+#include "radio_state.hpp"
+#include "portapack.hpp"
+#include "message.hpp"
+#include "volume.hpp"
+#include "audio.hpp"
+#include "baseband_api.hpp"
+#include "external_app.hpp"
+#include "string_format.hpp"
+#include <ch.h>
+#include <hal.h>
+
+namespace ui::external_app::morseradiotx {
+
+class MorseRadiotxView : public ui::View {
+   public:
+    MorseRadiotxView(ui::NavigationView& nav);
+    ~MorseRadiotxView();
+
+    MorseRadiotxView(const MorseRadiotxView&) = delete;
+    MorseRadiotxView(MorseRadiotxView&&) = delete;
+    MorseRadiotxView& operator=(const MorseRadiotxView&) = delete;
+    MorseRadiotxView& operator=(MorseRadiotxView&&) = delete;
+
+    std::string title() const override { return "Morse Tx"; }
+    void focus() override;
+    void on_show() override;
+    void transmit_morse_message();
+
+   private:
+    struct MorseTimings {
+        uint32_t dot_ms;
+        uint32_t dash_ms;
+        uint32_t symbol_gap;
+        uint32_t char_gap;
+        uint32_t word_gap;
+    };
+
+    MorseTimings current_timings{};
+
+    std::string msg_indicator{""};
+    MorseTimings calculate_morse_timings(uint32_t wpm);
+    void onPress();
+    void onRelease();
+    void on_framesync();
+    void writeCharToConsole(const std::string& ch, double confidence);
+    void ui_toggle();
+    bool tx_button_held();
+    void ptt_button_visibility(bool hidden);
+
+    ui::NavigationView& nav_;
+    MorseDecoder morse_decoder_{};
+    TxRadioState radio_state_{};
+    Thread* tx_thread{nullptr};
+
+    std::string msg_buffer{"PORTAPACK"};
+    uint8_t current_mode{0};  // 0=AM, 1=FM, 2=DSB, 3=USB, 4=LSB
+    uint8_t wpm{20};
+    uint32_t tone{700};
+    float band{5.8};
+    std::string call_sign{""};
+
+    app_settings::SettingsManager settings_{
+        "tx_morseradio",
+        app_settings::Mode::TX,
+        {
+            {"cmode"sv, &current_mode},
+            {"audtone"sv, &tone},
+            {"wpm"sv, &wpm},
+            {"message"sv, &msg_buffer},
+            {"bandwith"sv, &band},
+            {"call_sign"sv, &call_sign},
+        }};
+
+    TransmitterView tx_view{
+        (int16_t)UI_POS_Y_BOTTOM(4),
+        10000,
+        0, false};
+
+    AudioVolumeField field_volume{{UI_POS_X_RIGHT(2), UI_POS_Y_BOTTOM(5)}};
+    ui::OptionsField options_mode{
+        {UI_POS_X(5), UI_POS_Y(0)},
+        3,
+        {{"AM", 0}, {"FM", 1}, {"DSB", 2}, {"USB", 3}, {"LSB", 4}}};
+    NumberField tone_{{UI_POS_X(14), UI_POS_Y(0)}, 4, {400, 1400}, 10, ' ', true};
+    NumberField wpm_{{UI_POS_X(25), UI_POS_Y(0)}, 2, {10, 45}, 1, ' ', true};
+    FloatField bandwidth{{UI_POS_X(20), UI_POS_Y(3)}, 4, {1.0, 16.0}, 0.1, ' ', true, 1};
+
+    ui::Text txt_msg{{UI_POS_X(0), UI_POS_Y(1), UI_POS_MAXWIDTH, UI_POS_HEIGHT(1)}, "[" + msg_buffer + "] "};
+    ui::Button btn_message{{UI_POS_X(0), UI_POS_Y(2), UI_POS_WIDTH(11), UI_POS_HEIGHT(1)}, "Message"};
+    ui::Button btn_calls{{UI_POS_X(0), UI_POS_Y(4), UI_POS_WIDTH(11), UI_POS_HEIGHT(1)}, (call_sign.empty()) ? "call sign?" : call_sign};
+    Checkbox chk_trans{{UI_POS_X(14), UI_POS_Y(2)}, 13, "Manual trans.", true};
+    Checkbox chk_callsgn{{UI_POS_X(14), UI_POS_Y(4)}, 13, "Call sign", true};
+    ui::Text txt_last{{UI_POS_X(10), UI_POS_Y(5), UI_POS_WIDTH_REMAINING(10), UI_POS_HEIGHT(1)}, ""};
+    ui::Console console_text{{UI_POS_X(0), UI_POS_Y(7), UI_POS_MAXWIDTH, UI_POS_HEIGHT_REMAINING(14)}};
+    ui::Button btn_clear{{UI_POS_X(0), UI_POS_Y_BOTTOM(5), UI_POS_WIDTH(5), UI_POS_HEIGHT(1)}, "CLR"};
+    ui::Button btn_ptt{{UI_POS_X_CENTER(12), UI_POS_Y_BOTTOM(7), UI_POS_WIDTH(12), UI_POS_HEIGHT(3)}, "PTT"};
+
+    ui::Labels labels{
+        {{UI_POS_X(0), UI_POS_Y(0)}, "Mode:", Theme::getInstance()->fg_light->foreground},
+        {{UI_POS_X(9), UI_POS_Y(0)}, "Tone:", Theme::getInstance()->fg_light->foreground},
+        {{UI_POS_X(18), UI_POS_Y(0)}, "Hz", Theme::getInstance()->fg_light->foreground},
+        {{UI_POS_X(21), UI_POS_Y(0)}, "WPM:", Theme::getInstance()->fg_light->foreground},
+        {{UI_POS_X(14), UI_POS_Y(3)}, "BandW:", Theme::getInstance()->fg_light->foreground},
+        {{UI_POS_X(24), UI_POS_Y(3)}, "kHz", Theme::getInstance()->fg_light->foreground},
+        {{UI_POS_X(0), UI_POS_Y(5)}, "Last seq:", Theme::getInstance()->fg_light->foreground},
+        {{UI_POS_X(0), UI_POS_Y(6)}, "Sent Message:", Theme::getInstance()->fg_light->foreground},
+        {{UI_POS_X_RIGHT(7), UI_POS_Y_BOTTOM(5)}, "Vol.:", Theme::getInstance()->fg_light->foreground},
+    };
+
+    uint8_t last_color_id{255};
+    uint8_t color_id{255};
+    std::string arr_color[4] = {STR_COLOR_WHITE, STR_COLOR_RED, STR_COLOR_YELLOW, STR_COLOR_GREEN};
+
+    bool button_touch{false};
+    bool button_was_selected{false};
+    bool decode_timeout_calc{false};
+    bool transmit{false};
+    bool thread_running = false;
+
+    uint8_t send_indicator{5};
+    int64_t start_time{0};
+    int64_t end_time{0};
+    int64_t transmit_time{0};
+    SwitchesState initial_switch_config_{};
+
+    MessageHandlerRegistration message_handler_framesync{
+        Message::ID::DisplayFrameSync,
+        [this](const Message* const p) {
+            (void)p;
+            this->on_framesync();
+        }};
+};
+
+}  // namespace ui::external_app::morseradiotx
+
+#endif  // __MORSE_RADIOTX_H__

firmware/application/external/sdusb/main.cpp

@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2024 Bernd Herzog
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "ui.hpp"
+#include "ui_sd_over_usb.hpp"
+#include "ui_navigation.hpp"
+#include "external_app.hpp"
+
+namespace ui::external_app::sdusb {
+void initialize_app(ui::NavigationView& nav) {
+    nav.push<SdOverUsbView>();
+}
+}  // namespace ui::external_app::sdusb
+
+extern "C" {
+
+__attribute__((section(".external_app.app_sdusb.application_information"), used)) application_information_t _application_information_sdusb = {
+    /*.memory_location = */ (uint8_t*)0x00000000,
+    /*.externalAppEntry = */ ui::external_app::sdusb::initialize_app,
+    /*.header_version = */ CURRENT_HEADER_VERSION,
+    /*.app_version = */ VERSION_MD5,
+
+    /*.app_name = */ "SD Over USB",
+    /*.bitmap_data = */ {
+        0xF0,
+        0x0F,
+        0x10,
+        0x08,
+        0x50,
+        0x0A,
+        0x10,
+        0x08,
+        0x10,
+        0x08,
+        0x10,
+        0x08,
+        0xF8,
+        0x1F,
+        0xF8,
+        0x1F,
+        0xF8,
+        0x1F,
+        0xF8,
+        0x1F,
+        0xF8,
+        0x1F,
+        0xF8,
+        0x1F,
+        0xF8,
+        0x1F,
+        0xF0,
+        0x0F,
+        0x80,
+        0x01,
+        0x80,
+        0x01,
+    },
+    /*.icon_color = */ ui::Color::yellow().v,
+    /*.menu_location = */ app_location_t::UTILITIES,
+    /*.desired_menu_position = */ -1,
+
+    /*.m4_app_tag = portapack::spi_flash::image_tag_usb_sd */ {'P', 'U', 'S', 'B'},
+    /*.m4_app_offset = */ 0x00000000,  // will be filled at compile time
+};
+}

firmware/application/external/sdusb/ui_sd_over_usb.cpp

@@ -23,7 +23,7 @@
 #include "ui_sd_over_usb.hpp"
 #include "portapack_shared_memory.hpp"
 
-namespace ui {
+namespace ui::external_app::sdusb {
 
 SdOverUsbView::SdOverUsbView(NavigationView& nav)
     : nav_(nav) {
@@ -46,7 +46,7 @@ SdOverUsbView::SdOverUsbView(NavigationView& nav)
         sdcStop(&SDCD1);
 
         portapack::shutdown(true);
-        m4_init(portapack::spi_flash::image_tag_usb_sd, portapack::memory::map::m4_code, false);
+        baseband::run_prepared_image(portapack::memory::map::m4_code.base());
         m0_halt();
         /* will not return*/
     };
@@ -56,4 +56,4 @@ void SdOverUsbView::focus() {
     button_run.focus();
 }
 
-} /* namespace ui */
+}  // namespace ui::external_app::sdusb

firmware/application/external/sdusb/ui_sd_over_usb.hpp

@@ -32,7 +32,7 @@
 
 #include <cstdint>
 
-namespace ui {
+namespace ui::external_app::sdusb {
 
 class SdOverUsbView : public View {
    public:
@@ -58,6 +58,6 @@ class SdOverUsbView : public View {
         "Run"};
 };
 
-} /* namespace ui */
+}  // namespace ui::external_app::sdusb
 
 #endif /*__UI_SD_OVER_USB_H__*/

firmware/application/external/siggen/main.cpp

@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2023 Bernd Herzog
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "ui.hpp"
+#include "ui_siggen.hpp"
+#include "ui_navigation.hpp"
+#include "external_app.hpp"
+
+namespace ui::external_app::siggen {
+void initialize_app(ui::NavigationView& nav) {
+    nav.push<SigGenView>();
+}
+}  // namespace ui::external_app::siggen
+extern "C" {
+
+__attribute__((section(".external_app.app_siggen.application_information"), used)) application_information_t _application_information_siggen = {
+    /*.memory_location = */ (uint8_t*)0x00000000,
+    /*.externalAppEntry = */ ui::external_app::siggen::initialize_app,
+    /*.header_version = */ CURRENT_HEADER_VERSION,
+    /*.app_version = */ VERSION_MD5,
+
+    /*.app_name = */ "Signal gen",
+    /*.bitmap_data = */ {
+        0x18,
+        0x00,
+        0x24,
+        0x00,
+        0x42,
+        0x00,
+        0x42,
+        0x00,
+        0x42,
+        0x00,
+        0x42,
+        0x00,
+        0x81,
+        0x00,
+        0xAB,
+        0x6A,
+        0x80,
+        0x40,
+        0x00,
+        0x21,
+        0x00,
+        0x21,
+        0x00,
+        0x21,
+        0x00,
+        0x21,
+        0x00,
+        0x12,
+        0x00,
+        0x0C,
+        0x00,
+        0x00,
+    },
+    /*.icon_color = */ ui::Color::green().v,
+    /*.menu_location = */ app_location_t::TX,
+    /*.desired_menu_position = */ -1,
+
+    /*.m4_app_tag = portapack::spi_flash::image_tag_siggen */ {'P', 'S', 'I', 'G'},
+    /*.m4_app_offset = */ 0x00000000,  // will be filled at compile time
+};
+}

firmware/application/external/siggen/ui_siggen.cpp

@@ -31,7 +31,7 @@
 
 using namespace portapack;
 
-namespace ui {
+namespace ui::external_app::siggen {
 
 void SigGenView::focus() {
     options_shape.focus();
@@ -75,7 +75,7 @@ void SigGenView::on_tx_progress(const uint32_t progress, const bool done) {
 
 SigGenView::SigGenView(
     NavigationView& nav) {
-    baseband::run_image(portapack::spi_flash::image_tag_siggen);
+    baseband::run_prepared_image(portapack::memory::map::m4_code.base());
 
     add_children({&labels,
                   &options_mod,
@@ -172,4 +172,4 @@ SigGenView::SigGenView(
     };
 }
 
-} /* namespace ui */
+}  // namespace ui::external_app::siggen

firmware/application/external/siggen/ui_siggen.hpp

@@ -33,7 +33,7 @@
 #include "portapack.hpp"
 #include "message.hpp"
 
-namespace ui {
+namespace ui::external_app::siggen {
 
 class SigGenView : public View {
    public:
@@ -139,6 +139,6 @@ class SigGenView : public View {
         }};
 };
 
-} /* namespace ui */
+}  // namespace ui::external_app::siggen
 
 #endif /*__SIGGEN_H__*/

firmware/application/external/sstvrx/main.cpp

@@ -0,0 +1,88 @@
+/*
+ * Copyright (C) 2025 StarVore Labs
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "ui.hpp"
+#include "ui_sstvrx.hpp"
+#include "ui_navigation.hpp"
+#include "external_app.hpp"
+
+namespace ui::external_app::sstvrx {
+
+void initialize_app(NavigationView& nav) {
+    nav.push<SstvRxView>();
+}
+
+}  // namespace ui::external_app::sstvrx
+
+extern "C" {
+
+// Az alkalmazás információ C-linkage-ként, hogy a firmware hívhassa
+__attribute__((section(".external_app.app_sstvrx.application_information"), used))
+application_information_t _application_information_sstvrx = {
+    /*.memory_location = */ (uint8_t*)0x00000000,
+    /*.externalAppEntry = */ ui::external_app::sstvrx::initialize_app,
+    /*.header_version = */ CURRENT_HEADER_VERSION,
+    /*.app_version = */ VERSION_MD5,
+
+    /*.app_name = */ "SSTV RX",
+    /*.bitmap_data = */ {
+        0x00,
+        0x00,
+        0x00,
+        0x00,
+        0xFE,
+        0x7F,
+        0x03,
+        0xC0,
+        0x53,
+        0xD5,
+        0xAB,
+        0xCA,
+        0x53,
+        0xD5,
+        0xAB,
+        0xCA,
+        0x53,
+        0xD5,
+        0xAB,
+        0xCA,
+        0x53,
+        0xD5,
+        0x03,
+        0xC0,
+        0xFF,
+        0xFF,
+        0xFB,
+        0xD7,
+        0xFE,
+        0x7F,
+        0x00,
+        0x00,
+    },
+    /*.icon_color = */ ui::Color::yellow().v,
+    /*.menu_location = */ app_location_t::RX,
+    /*.desired_menu_position = */ -1,
+
+    /*.m4_app_tag = portapack::spi_flash::image_tag_none */ {'P', 'S', 'R', 'X'},
+    /*.m4_app_offset = */ 0x00000000,  // will be filled at compile time
+};
+
+}  // extern "C"

firmware/application/external/sstvrx/ui_sstvrx.cpp

@@ -0,0 +1,510 @@
+/*
+ * Copyright (C) 2025 StarVore Labs
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "ui_sstvrx.hpp"
+
+#include "portapack_persistent_memory.hpp"
+#include "portapack.hpp"
+#include "hackrf_hal.hpp"
+#include "file_path.hpp"
+#include "message.hpp"
+#include <algorithm>
+#include <array>
+#include <cstdint>
+#include <cstring>
+#include <stdio.h>
+
+using namespace portapack;
+using namespace modems;
+using namespace ui;
+
+#if SSTVRX_ENABLE_LOGGER
+#define SSTVRX_LOG_INFO(msg)       \
+    do {                           \
+        if (logger) {              \
+            logger->log_info(msg); \
+        }                          \
+    } while (0)
+#define SSTVRX_LOG_ERROR(msg)       \
+    do {                            \
+        if (logger) {               \
+            logger->log_error(msg); \
+        }                           \
+    } while (0)
+#else
+#define SSTVRX_LOG_INFO(msg) \
+    do {                     \
+        (void)sizeof(msg);   \
+    } while (0)
+#define SSTVRX_LOG_ERROR(msg) \
+    do {                      \
+        (void)sizeof(msg);    \
+    } while (0)
+#endif
+
+// SSTV RX View Implementation
+namespace ui::external_app::sstvrx {
+
+static_assert(sizeof(shared_memory.bb_data.data) == 512,
+              "SSTV shared buffer size mismatch");
+
+#if SSTVRX_ENABLE_LOGGER
+void SstvRxLogger::log_error(const std::string& error_message) {
+    log_file.write_entry(rtc_time::now(), "ERROR: " + error_message);
+}
+
+void SstvRxLogger::log_info(const std::string& info_message) {
+    log_file.write_entry(rtc_time::now(), "INFO: " + info_message);
+}
+#endif
+
+SstvRxView::SstvRxView(ui::NavigationView& nav)
+    : nav_(nav) {
+    baseband::run_prepared_image(portapack::memory::map::m4_code.base());
+    DISPLAY_HEIGHT = screen_height - SSTV_IMG_START_ROW * 16 - 16;
+    DISPLAY_WIDTH = screen_width;
+    add_children({&field_rf_amp,
+                  &field_lna,
+                  &field_vga,
+                  &rssi,
+                  &channel,
+                  &field_frequency,
+                  &field_volume,
+                  &audio,
+                  &start_stop_btn,
+                  &options_mode,
+                  &field_phase,
+                  &field_slant,
+                  &labels,
+                  &text_calibration});
+
+    // Initialize audio with proper rate for SSTV
+    audio::set_rate(audio::Rate::Hz_48000);
+    audio::output::start();
+
+    // Configure receiver with optimal settings for SSTV
+    // NOTE: Do NOT set modulation mode - SSTV uses a custom baseband processor
+    // Standard sampling rate (3.072MHz) with wide bandwidth to capture full SSTV audio spectrum
+    // SSTV uses 1200-2300 Hz tones, so we need wide baseband to avoid distortion
+    receiver_model.set_sampling_rate(3072000);
+    receiver_model.set_baseband_bandwidth(1750000);  // Standard wideband setting
+    receiver_model.set_squelch_level(1);
+    receiver_model.set_hidden_offset(0);  // No offset needed
+
+    // Field values will be set in on_show() to ensure proper initialization
+
+    using option_t = std::pair<std::string, int32_t>;
+    using options_t = std::vector<option_t>;
+    options_t mode_options;
+    uint32_t c;
+
+    // Start/Stop button handler - toggles between start and stop
+    start_stop_btn.on_select = [this](Button&) {
+        start_stop_btn.focus();
+        on_start_stop();
+    };
+
+    // Initialize frequency field from settings or use default
+    if (settings_.loaded() && settings_.raw().rx_frequency != 0) {
+        field_frequency.set_value(settings_.raw().rx_frequency);
+    } else if (field_frequency.value() == 0) {
+        field_frequency.set_value(145800000);  // Default to 145.800 MHz (ISS)
+    }
+    field_frequency.set_step(25000);
+
+    // Populate mode list
+    for (c = 0; c < SSTV_MODES_NB; c++)
+        mode_options.emplace_back(sstv_modes[c].name, c);
+    options_mode.set_options(mode_options);
+
+    options_mode.on_change = [this](size_t i, int32_t) {
+        this->on_mode_changed(i);
+    };
+    options_mode.set_selected_index(1);  // Scottie 2
+    on_mode_changed(1);
+
+    // Initialize phase and slant controls from loaded settings
+    field_phase.set_value(phase_adjustment);
+    field_phase.on_change = [this](int32_t v) {
+        phase_adjustment = v;
+        if (is_receiving) {
+            baseband::set_sstvrx_phase_slant(phase_adjustment, slant_adjustment);
+        } else if (max_received_line > 0) {
+            // Auto-redraw when adjusting after reception
+            redraw_image();
+        }
+    };
+
+    field_slant.set_value(slant_adjustment);
+    field_slant.on_change = [this](int32_t v) {
+        slant_adjustment = v;
+        if (is_receiving) {
+            baseband::set_sstvrx_phase_slant(phase_adjustment, slant_adjustment);
+        } else if (max_received_line > 0) {
+            // Auto-redraw when adjusting after reception
+            redraw_image();
+        }
+    };
+
+#if SSTVRX_ENABLE_LOGGER
+    logger = std::make_unique<SstvRxLogger>();
+    if (logger) {
+        logger->append(logs_dir / "SSTVRX.txt");
+        logger->log_info("----------SSTV RX Started----------");
+    }
+#endif
+}
+
+// Destructor: Ensure reception is stopped
+SstvRxView::~SstvRxView() {
+    is_receiving = true;
+    on_stop();
+    baseband::shutdown();
+    SSTVRX_LOG_INFO("SSTV RX Stopped");
+}
+
+void SstvRxView::on_show() {
+    // Update field values from receiver model to reflect loaded settings
+    field_lna.set_value(receiver_model.lna());
+    field_vga.set_value(receiver_model.vga());
+    field_rf_amp.set_value(receiver_model.rf_amp());
+    field_volume.set_value(receiver_model.normalized_headphone_volume());
+}
+
+void SstvRxView::focus() {
+    field_frequency.focus();
+}
+
+// Combined start/stop handler - toggles based on current state
+void SstvRxView::on_start_stop() {
+    if (is_receiving) {
+        // Currently receiving - stop it
+        on_stop();
+        start_stop_btn.set_text("Start RX");
+    } else {
+        // Currently stopped - start reception
+        SSTVRX_LOG_INFO("Starting SSTV RX Reception");
+        start_audio();
+        start_stop_btn.set_text("Stop RX");
+    }
+}
+
+// Stop NFM audio reception
+void SstvRxView::on_stop() {
+    SSTVRX_LOG_INFO("Stopping SSTV RX Reception");
+    if (is_receiving) {
+        // Stop in reverse order of start
+        receiver_model.disable();
+        audio::output::stop();
+
+        // Reset state
+        is_receiving = false;
+
+        // Close image file if still open
+        bmp.close();
+
+        pending_line_valid = false;
+        pending_chunk_mask = 0;
+        std::fill(pending_line_rgb.begin(), pending_line_rgb.end(), 0);
+        *reinterpret_cast<volatile uint8_t*>(&shared_memory.bb_data.data[CHUNK_FLAG_INDEX]) = 0;
+
+        SSTVRX_LOG_INFO("SSTV RX Reception Stopped");
+    } else {
+        SSTVRX_LOG_ERROR("SSTV RX Reception Not Running");
+    }
+}
+
+// Start NFM audio reception
+void SstvRxView::start_audio() {
+    SSTVRX_LOG_INFO("Configuring SSTV RX Audio Reception");
+
+    // Configure the baseband processor with VIS code
+    if (rx_sstv_mode) {
+        baseband::set_sstvrx_data(rx_sstv_mode->vis_code);
+        SSTVRX_LOG_INFO("Sent VIS code to processor: " + to_string_dec_uint(rx_sstv_mode->vis_code));
+    }
+
+    // Send phase and slant adjustments
+    baseband::set_sstvrx_phase_slant(phase_adjustment, slant_adjustment);
+
+    // Initialize audio path
+    audio::output::stop();
+    audio::set_rate(audio::Rate::Hz_48000);
+
+    // Set audio routing and volume
+    // audio::output::start();
+
+    // Clear display area and reset line counter
+    portapack::display.fill_rectangle(
+        {0, SSTV_IMG_START_ROW * 16, DISPLAY_WIDTH, DISPLAY_HEIGHT},
+        {0, 0, 0});
+    line_num = 0;
+    file_line_num = 0;
+    max_received_line = 0;
+    pending_line_valid = false;
+    pending_chunk_mask = 0;
+    std::fill(pending_line_rgb.begin(), pending_line_rgb.end(), 0);
+    *reinterpret_cast<volatile uint8_t*>(&shared_memory.bb_data.data[CHUNK_FLAG_INDEX]) = 0;
+
+    // Clear calibration display
+    text_calibration.set("Calibrating...");
+
+    // Initialize new image file
+    current_line_rx = 0;
+    auto timestamp = to_string_timestamp(rtc_time::now());
+    auto dir_error = ensure_directory(sstv_dir / "RX");
+    if (!dir_error.ok()) {
+        SSTVRX_LOG_ERROR("Failed to create directory: SSTV/RX");
+    }
+    current_image_path = sstv_dir / ("RX/SSTV_" + timestamp + ".bmp");
+    auto ok = bmp.create(current_image_path, IMAGE_WIDTH, 1);
+    if (!ok) {
+        SSTVRX_LOG_ERROR("Failed to create file: " + current_image_path.string());
+        bmp.close();
+    }
+
+    // Start audio output
+    audio::output::start();
+    audio::headphone::set_volume(persistent_memory::headphone_volume());
+
+    // Keep ReceiverModel in capture mode so it doesn't override our custom baseband/audio configuration.
+    receiver_model.set_modulation(ReceiverModel::Mode::Capture);
+
+    // Enable receiver last
+    receiver_model.enable();
+    is_receiving = true;
+    SSTVRX_LOG_INFO("SSTV RX Started");
+}
+
+void SstvRxView::on_mode_changed(const size_t index) {
+    rx_sstv_mode = &sstv_modes[index];
+}
+
+void SstvRxView::write_line_to_file(uint16_t line_num, const uint8_t* rgb_line) {
+    (void)line_num;
+    if (!bmp.is_loaded()) return;
+    // Ensure BMP height is sufficient
+    if (bmp.get_real_height() <= file_line_num) {
+        bmp.expand_y(file_line_num + 1);
+    }
+    bmp.seek(0, file_line_num);
+
+    // Write RGB data in BGR order
+    for (uint16_t x = 0; x < IMAGE_WIDTH; x++) {
+        uint8_t r = rgb_line[x * 3 + 0];
+        uint8_t g = rgb_line[x * 3 + 1];
+        uint8_t b = rgb_line[x * 3 + 2];
+        Color px(g, b, r);
+        bmp.write_next_px(px);
+    }
+    file_line_num++;
+}
+
+void SstvRxView::update_display(uint16_t current_line, const uint8_t* rgb_line) {
+    if (current_line >= IMAGE_HEIGHT) return;
+
+    // Reset line counter if we reach the bottom of display
+    if (line_num >= DISPLAY_HEIGHT) {
+        line_num = 0;
+    }
+
+    // Scale line to display width
+    for (uint16_t x = 0; x < DISPLAY_WIDTH; x++) {
+        // Scale x coordinate
+        uint16_t src_x = (x * IMAGE_WIDTH) / DISPLAY_WIDTH;
+        if (src_x >= IMAGE_WIDTH) continue;
+
+        // Get RGB values from interleaved data [R,G,B,R,G,B,...]
+        uint8_t r = rgb_line[src_x * 3 + 0];
+        uint8_t g = rgb_line[src_x * 3 + 1];
+        uint8_t b = rgb_line[src_x * 3 + 2];
+        // Display uses BGR order like BMP format
+        // line_buffer[x] = Color(b, r, g);
+        line_buffer[x] = Color(g, b, r);
+    }
+
+    // Render the line at the current position
+    portapack::display.render_line(
+        {0, line_num + SSTV_IMG_START_ROW * 16},
+        DISPLAY_WIDTH,
+        line_buffer);
+
+    // Increment line counter
+    line_num++;
+}
+void SstvRxView::redraw_image() {
+    // Disabled: Post-reception redraw requires 245KB buffer which exceeds M0 memory
+    // Phase and slant adjustments must be set before reception starts
+}
+
+void SstvRxView::on_progress(uint16_t line, uint16_t total_lines) {
+    if (!is_receiving) {
+        if (line < 0xFFF0) {
+            *reinterpret_cast<volatile uint8_t*>(&shared_memory.bb_data.data[CHUNK_FLAG_INDEX]) = 0;
+        }
+        return;
+    }
+
+    // Handle debug messages
+    if (line == 0xFFFF) {
+        SSTVRX_LOG_ERROR("Processor not configured");
+        return;
+    }
+    if (line == 0xFFFE) {
+        SSTVRX_LOG_INFO("Sync pulse duration: " + to_string_dec_uint(total_lines) + " samples");
+        return;
+    }
+    if (line == 0xFFFD) {
+        SSTVRX_LOG_INFO("Sync detected, count=" + to_string_dec_uint(total_lines));
+        text_calibration.set("Syncs: " + to_string_dec_uint(total_lines));
+        return;
+    }
+    if (line == 0xFFFC) {
+        SSTVRX_LOG_INFO("Expected interval: " + to_string_dec_uint(total_lines) + " samples");
+        return;
+    }
+    if (line == 0xFFFB) {
+        SSTVRX_LOG_INFO("Actual interval: " + to_string_dec_uint(total_lines) + " samples");
+        return;
+    }
+    if (line == 0xFFFA) {
+        SSTVRX_LOG_INFO("SYNC TIMEOUT after " + to_string_dec_uint(total_lines) + " samples - continuing without sync");
+        return;
+    }
+    if (line == 0xFFF9) {
+        SSTVRX_LOG_INFO("Detected frequency at sync: " + to_string_dec_uint(total_lines) + " Hz");
+        return;
+    }
+    if (line == 0xFFF8) {
+        SSTVRX_LOG_INFO("OUTLIER REJECTED: interval=" + to_string_dec_uint(total_lines) + " samples (expected 10000-15000)");
+        return;
+    }
+    if (line == 0xFFF7) {
+        SSTVRX_LOG_INFO("PRE-RECORD: sync_history_count=" + to_string_dec_uint(total_lines));
+        return;
+    }
+    if (line == 0xFFF6) {
+        SSTVRX_LOG_INFO("MAX_SYNC_HISTORY EXCEEDED: count=" + to_string_dec_uint(total_lines));
+        return;
+    }
+    if (line == 0xFFF5) {
+        // Decode rejection reason bit flags: 0x1=interval, 0x2=freq, 0x4=duration
+        std::string reasons = "";
+        if (total_lines & 0x1) reasons += "interval ";
+        if (total_lines & 0x2) reasons += "freq ";
+        if (total_lines & 0x4) reasons += "duration ";
+        if (reasons.empty()) reasons = "unknown";
+        SSTVRX_LOG_INFO("FALSE SYNC PAIR REJECTED on Line 0: " + reasons);
+        return;
+    }
+    if (line == 0xFFF4) {
+        SSTVRX_LOG_INFO("STARTING LINE 0 DECODE after sync_sample_count=" + to_string_dec_uint(total_lines));
+        return;
+    }
+
+    std::array<uint8_t, CHUNK_COPY_BYTES> chunk{};
+    memcpy(chunk.data(), shared_memory.bb_data.data, chunk.size());
+    *reinterpret_cast<volatile uint8_t*>(&shared_memory.bb_data.data[CHUNK_FLAG_INDEX]) = 0;
+
+    const uint16_t line_num_encoded = chunk[0] | (chunk[1] << 8);
+    const bool is_second_chunk = (line_num_encoded & 1) == 1;
+    const uint16_t actual_line_num = line_num_encoded / 2;
+
+    if (actual_line_num >= IMAGE_HEIGHT) {
+        return;
+    }
+
+    const bool multi_chunk_line = PIXELS_PER_LINE > MAX_CHUNK_PIXELS;
+    if (!pending_line_valid || pending_line_number != actual_line_num) {
+        pending_line_number = actual_line_num;
+        pending_line_valid = true;
+        pending_chunk_mask = 0;
+        std::fill(pending_line_rgb.begin(), pending_line_rgb.end(), 0);
+    }
+
+    const uint16_t chunk_pixels = multi_chunk_line
+                                      ? (is_second_chunk ? (PIXELS_PER_LINE - MAX_CHUNK_PIXELS) : MAX_CHUNK_PIXELS)
+                                      : PIXELS_PER_LINE;
+    const uint16_t dest_pixel_offset = (multi_chunk_line && is_second_chunk) ? MAX_CHUNK_PIXELS : 0;
+    const uint16_t chunk_bytes = chunk_pixels * 3;
+    const uint16_t max_copy_bytes = static_cast<uint16_t>(chunk.size() > CHUNK_HEADER_BYTES ? (chunk.size() - CHUNK_HEADER_BYTES) : 0);
+    const uint16_t bytes_to_copy = (chunk_bytes < max_copy_bytes) ? chunk_bytes : max_copy_bytes;
+    const uint16_t dest_byte_offset = dest_pixel_offset * 3;
+
+    if (bytes_to_copy > 0 && (dest_byte_offset + bytes_to_copy) <= pending_line_rgb.size()) {
+        memcpy(pending_line_rgb.data() + dest_byte_offset, chunk.data() + CHUNK_HEADER_BYTES, bytes_to_copy);
+    }
+
+    const uint8_t chunk_bit = (multi_chunk_line && is_second_chunk) ? 0x2 : 0x1;
+    pending_chunk_mask |= chunk_bit;
+    const uint8_t required_mask = multi_chunk_line ? 0x3 : 0x1;
+    if (pending_chunk_mask != required_mask) {
+        return;
+    }
+
+    pending_line_valid = false;
+    pending_chunk_mask = 0;
+    current_line_rx = actual_line_num;
+    if (actual_line_num < IMAGE_HEIGHT) {
+        write_line_to_file(actual_line_num, pending_line_rgb.data());
+        update_display(actual_line_num, pending_line_rgb.data());
+        max_received_line = max_received_line > (actual_line_num + 1) ? max_received_line : (actual_line_num + 1);
+    }
+
+#if SSTVRX_ENABLE_LOGGER
+    if (logger && (actual_line_num % 10 == 0)) {
+        logger->log_info("Line " + to_string_dec_uint(actual_line_num) + "/" + to_string_dec_uint(total_lines));
+    }
+#endif
+
+    // if (actual_line_num >= (total_lines - 1)) { //don't auto finish image upon end, user need to manually stop. this method is not reliable enough.
+    //     finish_image();
+    // }
+}
+
+void SstvRxView::finish_image() {
+    bmp.close();
+    SSTVRX_LOG_INFO("Image completed: " + current_image_path.string());
+}
+
+void SstvRxView::on_calibration(int16_t suggested_phase, int16_t suggested_slant, uint16_t sync_count) {
+    if (!is_receiving) return;
+
+    // Display calibration suggestions to the user
+    if (sync_count >= 4) {
+        std::string cal_text = "Try Slant=" + to_string_dec_int(suggested_slant);
+        text_calibration.set(cal_text);
+        text_calibration.set_dirty();
+
+        // Don't auto-apply yet - just suggest for now until we verify the values are correct
+        // User can manually adjust if needed
+
+        // Log the suggestion
+        SSTVRX_LOG_INFO("Calibration suggestion: phase=" + to_string_dec_int(suggested_phase) +
+                        " slant=" + to_string_dec_int(suggested_slant) +
+                        " (from " + to_string_dec_uint(sync_count) + " syncs)");
+    } else {
+        // Log that we received calibration but not enough syncs yet
+        SSTVRX_LOG_INFO("Calibration received: " + to_string_dec_uint(sync_count) + " syncs (need 4+)");
+    }
+}
+
+}  // namespace ui::external_app::sstvrx

firmware/application/external/sstvrx/ui_sstvrx.hpp

@@ -0,0 +1,196 @@
+/*
+ * Copyright (C) 2025 StarVore Labs
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __SSTVRX_H__
+#define __SSTVRX_H__
+
+#include "ui.hpp"
+#include "ui_widget.hpp"
+#include "ui_receiver.hpp"
+#include "ui_navigation.hpp"
+#include "ui_receiver.hpp"
+#include "ui_freq_field.hpp"
+#include "ui_freqman.hpp"
+#include "ui_channel.hpp"
+#include "baseband_api.hpp"
+#include "event_m0.hpp"
+#include "message.hpp"
+#include "sstv.hpp"
+#include "file.hpp"
+#include "bmpfile.hpp"
+#include "app_settings.hpp"
+#include "radio_state.hpp"
+#include "oversample.hpp"
+#include "string_format.hpp"
+#include "log_file.hpp"
+#include "utility.hpp"
+#include "audio.hpp"
+#include "portapack.hpp"
+#include <array>
+#include <ch.h>
+
+#ifndef SSTVRX_ENABLE_LOGGER
+#define SSTVRX_ENABLE_LOGGER 0
+#endif
+
+using namespace sstv;
+
+namespace ui::external_app::sstvrx {
+
+#define FMR_BTNGRID_TOP 60
+
+#if SSTVRX_ENABLE_LOGGER
+class SstvRxLogger {
+   public:
+    Optional<File::Error> append(const std::filesystem::path& filename) {
+        return log_file.append(filename);
+    }
+
+    void log_error(const std::string& error_message);
+    void log_info(const std::string& info_message);
+
+   private:
+    LogFile log_file{};
+};
+#endif
+
+class SstvRxView : public ui::View {
+   public:
+    SstvRxView(ui::NavigationView& nav);
+    SstvRxView& operator=(const SstvRxView&) = delete;
+    SstvRxView(const SstvRxView&) = delete;
+    ~SstvRxView();
+
+    std::string title() { return "SSTV RX"; }
+    void focus() override;
+    void on_show() override;
+
+   private:
+    ui::NavigationView& nav_;
+#if SSTVRX_ENABLE_LOGGER
+    std::unique_ptr<SstvRxLogger> logger{};
+#endif
+
+    // Phase and slant adjustments (runtime only, not persisted)
+    int16_t phase_adjustment{0};  // Horizontal offset in pixels (-50 to +50)
+    int16_t slant_adjustment{0};  // Timing adjustment in 0.1% units (-100 to +100)
+
+    // Settings must be declared before UI controls
+    app_settings::SettingsManager settings_{
+        "rx_sstv",
+        app_settings::Mode::RX};
+
+    ReceiverModel::Mode receiver_mode = ReceiverModel::Mode::WidebandFMAudio;
+    AudioSpectrum* audio_spectrum_data{nullptr};
+    int16_t audio_spectrum[128]{0};
+    RxRadioState radio_state_{};
+    audio::Rate audio_sampling_rate = audio::Rate::Hz_48000;
+    uint8_t radio_bw = 0;
+    bool is_receiving = false;
+    const sstv_mode* rx_sstv_mode{};
+
+    // Image data storage - only store current line to save memory
+    static constexpr uint16_t IMAGE_WIDTH = 320;
+    static constexpr uint16_t IMAGE_HEIGHT = 256;
+    static constexpr uint16_t PIXELS_PER_LINE = 320;
+    uint16_t DISPLAY_WIDTH = 240;                      // Scaled display width
+    uint16_t DISPLAY_HEIGHT = 192;                     // Scaled display height
+    static constexpr uint16_t SSTV_IMG_START_ROW = 7;  // Start drawing at row 7 (after controls)
+    static constexpr size_t SHARED_BUFFER_BYTES = 512;
+    static constexpr size_t CHUNK_FLAG_INDEX = SHARED_BUFFER_BYTES - 1;
+    static constexpr size_t CHUNK_HEADER_BYTES = 2;
+    static constexpr size_t CHUNK_COPY_BYTES = CHUNK_FLAG_INDEX;  // Exclude flag byte
+    static constexpr uint16_t MAX_CHUNK_PIXELS = (CHUNK_COPY_BYTES - CHUNK_HEADER_BYTES) / 3;
+
+    uint16_t current_line_rx{0};
+    BMPFile bmp{};
+    std::filesystem::path current_image_path{};
+    ui::Color line_buffer[320];
+    uint16_t line_num{0}, file_line_num{0};
+    std::array<uint8_t, IMAGE_WIDTH * 3> pending_line_rgb{};
+    uint16_t pending_line_number{0};
+    uint8_t pending_chunk_mask{0};
+    bool pending_line_valid{false};
+
+    // Note: Post-reception phase/slant adjustment disabled due to M0 memory constraints
+    // The 245KB image buffer exceeds available heap memory
+    uint16_t max_received_line{0};
+
+    MessageHandlerRegistration message_handler_progress{
+        Message::ID::SSTVRXProgress,
+        [this](const Message* const p) {
+            const auto message = *reinterpret_cast<const SSTVRXProgressMessage*>(p);
+            this->on_progress(message.line, message.total_lines);
+        }};
+
+    MessageHandlerRegistration message_handler_calibration{
+        Message::ID::SSTVRXCalibration,
+        [this](const Message* const p) {
+            const auto message = *reinterpret_cast<const SSTVRXCalibrationMessage*>(p);
+            this->on_calibration(message.suggested_phase, message.suggested_slant, message.sync_count);
+        }};
+
+    // UI Elements
+    RFAmpField field_rf_amp{{UI_POS_X(13), UI_POS_Y(0)}};
+    LNAGainField field_lna{{UI_POS_X(15), UI_POS_Y(0)}};
+    VGAGainField field_vga{{UI_POS_X(18), UI_POS_Y(0)}};
+
+    RSSI rssi{{UI_POS_X(21), 0, UI_POS_WIDTH_REMAINING(24), 4}};
+    Channel channel{{UI_POS_X(21), 5, UI_POS_WIDTH_REMAINING(24), 4}};
+    RxFrequencyField field_frequency{{UI_POS_X(0), UI_POS_Y(0)}, nav_};
+    AudioVolumeField field_volume{{UI_POS_X_RIGHT(2), UI_POS_Y(0)}};
+
+    OptionsField options_mode{{UI_POS_X(6), UI_POS_Y(1)}, 16, {}};
+
+    NumberField field_phase{{UI_POS_X(4), UI_POS_Y(2)}, 3, {-50, 50}, 1, ' '};
+    NumberField field_slant{{UI_POS_X(13), UI_POS_Y(2)}, 4, {-100, 100}, 1, ' '};
+
+    Labels labels{
+        {{UI_POS_X(1), UI_POS_Y(1)}, "Mode:", Theme::getInstance()->fg_light->foreground},
+        {{UI_POS_X(1), UI_POS_Y(2)}, "Ph:", Theme::getInstance()->fg_light->foreground},
+        {{UI_POS_X(8), UI_POS_Y(2)}, "Slnt:", Theme::getInstance()->fg_light->foreground}};
+
+    Audio audio{{UI_POS_X(21), 10, UI_POS_WIDTH(6), 4}};
+    ui::Button start_stop_btn{{UI_POS_X_RIGHT(12), UI_POS_Y(3), UI_POS_WIDTH(11), UI_POS_HEIGHT(2)}, "Start RX"};
+    // ui::Button redraw_btn{{16 * 8, UI_POS_Y(5), UI_POS_WIDTH(12), UI_POS_HEIGHT(3)}, "Redraw"};
+
+    // Calibration suggestion display
+    Text text_calibration{
+        {UI_POS_X(1), UI_POS_Y(3), UI_POS_WIDTH(17), UI_POS_HEIGHT(1)},
+        "Calib: N/A"};
+
+    void on_audio_spectrum();
+    void update_display(uint16_t line_num, const uint8_t* rgb_line);
+    void redraw_image();  // Disabled due to memory constraints
+    void start_audio();
+    void on_start_stop();  // Combined start/stop handler
+    void on_stop();
+    void on_mode_changed(const size_t index);
+    void on_progress(uint16_t line, uint16_t total_lines);
+    void on_calibration(int16_t suggested_phase, int16_t suggested_slant, uint16_t sync_count);
+    void write_bmp_header();
+    void write_line_to_file(uint16_t line_num, const uint8_t* rgb_line);
+    void finish_image();
+};
+
+}  // namespace ui::external_app::sstvrx
+
+#endif  // __SSTVRX_H__

firmware/application/external/subcarrx/main.cpp

@@ -0,0 +1,81 @@
+/*
+ * Copyright (C) 2026 HTotoo
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "ui_subcar.hpp"
+#include "ui_navigation.hpp"
+#include "external_app.hpp"
+
+namespace ui::external_app::subcarrx {
+void initialize_app(ui::NavigationView& nav) {
+    nav.push<SubCarView>();
+}
+}  // namespace ui::external_app::subcarrx
+extern "C" {
+
+__attribute__((section(".external_app.app_subcarrx.application_information"), used)) application_information_t _application_information_subcarrx = {
+    /*.memory_location = */ (uint8_t*)0x00000000,
+    /*.externalAppEntry = */ ui::external_app::subcarrx::initialize_app,
+    /*.header_version = */ CURRENT_HEADER_VERSION,
+    /*.app_version = */ VERSION_MD5,
+
+    /*.app_name = */ "SubCar",
+    /*.bitmap_data = */ {
+        0xC0,
+        0x03,
+        0xE0,
+        0x07,
+        0x30,
+        0x0C,
+        0x30,
+        0x0C,
+        0x30,
+        0x0C,
+        0x30,
+        0x0C,
+        0xE0,
+        0x07,
+        0xC0,
+        0x03,
+        0x80,
+        0x01,
+        0x80,
+        0x01,
+        0x80,
+        0x01,
+        0x80,
+        0x01,
+        0x80,
+        0x07,
+        0x80,
+        0x03,
+        0x80,
+        0x07,
+        0x80,
+        0x01,
+    },
+    /*.icon_color = */ ui::Color::orange().v,
+    /*.menu_location = */ app_location_t::RX,
+    /*.desired_menu_position = */ -1,
+
+    /*.m4_app_tag = portapack::spi_flash::image_tag_acars */ {'P', 'S', 'C', 'D'},
+    /*.m4_app_offset = */ 0x00000000,  // will be filled at compile time
+};
+}

firmware/application/external/subcarrx/ui_subcar.cpp

@@ -0,0 +1,539 @@
+/*
+ * Copyright (C) 2026 HTotoo
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "ui_subcar.hpp"
+#include "audio.hpp"
+#include "baseband_api.hpp"
+#include "string_format.hpp"
+#include "file_path.hpp"
+#include "portapack_persistent_memory.hpp"
+
+using namespace portapack;
+using namespace ui;
+
+namespace ui::external_app::subcarrx {
+
+std::string SubCarRecentEntry::to_csv() {
+    std::string csv = ";";
+    csv += SubCarView::getSensorTypeName((FPROTO_SUBCAR_SENSOR)sensorType);
+    csv += ";" + to_string_dec_uint(bits) + ";";
+    csv += to_string_hex(data, 64 / 4) + ";" + to_string_hex(data2, 64 / 4);
+    return csv;
+}
+
+void SubCarLogger::log_data(SubCarRecentEntry& data) {
+    log_file.write_entry(data.to_csv());
+}
+
+void SubCarRecentEntryDetailView::update_data() {
+    // process protocol data
+    parseProtocol();
+    // set text elements
+    text_type.set(SubCarView::getSensorTypeName((FPROTO_SUBCAR_SENSOR)entry_.sensorType));
+
+    text_id.set("0x" + to_string_hex(serial));
+    if (entry_.bits > 0) console.writeln("Bits: " + to_string_dec_uint(entry_.bits));
+    if (!btn.empty()) console.writeln("Btn: " + btn);
+    if (cnt != SD_NO_CNT) console.writeln("Cnt: " + to_string_dec_uint(cnt));
+    if (entry_.data != 0) console.writeln("Data : " + to_string_hex(entry_.data));
+    if (entry_.data2 != 0) console.writeln("Data2: " + to_string_hex(entry_.data2));
+}
+
+SubCarRecentEntryDetailView::SubCarRecentEntryDetailView(NavigationView& nav, const SubCarRecentEntry& entry)
+    : nav_{nav},
+      entry_{entry} {
+    add_children({&button_done,
+                  &text_type,
+                  &text_id,
+                  &console,
+                  &labels});
+
+    button_done.on_select = [&nav](const ui::Button&) {
+        nav.pop();
+    };
+    update_data();
+}
+
+void SubCarRecentEntryDetailView::focus() {
+    button_done.focus();
+}
+
+void SubCarView::focus() {
+    field_frequency.focus();
+}
+
+SubCarView::SubCarView(NavigationView& nav)
+    : nav_{nav} {
+    add_children({&rssi,
+                  &channel,
+                  &field_rf_amp,
+                  &field_lna,
+                  &field_vga,
+                  &field_frequency,
+                  &button_clear_list,
+                  &check_log,
+                  &labels,
+                  &options_mode,
+                  &recent_entries_view});
+
+    baseband::run_prepared_image(portapack::memory::map::m4_code.base());
+    logger = std::make_unique<SubCarLogger>();
+
+    button_clear_list.on_select = [this](Button&) {
+        recent.clear();
+        recent_entries_view.set_dirty();
+    };
+    field_frequency.set_step(10000);
+    check_log.on_select = [this](Checkbox&, bool v) {
+        logging = v;
+        if (logger && logging) {
+            logger->append(logs_dir.string() + "/SubCarLOG_" + to_string_timestamp(rtc_time::now()) + ".CSV");
+            logger->write_header();
+        }
+    };
+    check_log.set_value(logging);
+    const Rect content_rect{0, header_height, screen_width, screen_height - header_height};
+    recent_entries_view.set_parent_rect(content_rect);
+    recent_entries_view.on_select = [this](const SubCarRecentEntry& entry) {
+        nav_.push<SubCarRecentEntryDetailView>(entry);
+    };
+
+    options_mode.on_change = [this](size_t, int32_t v) {
+        modulation = v;
+        chThdSleepMilliseconds(100);  // wait for the baseband thread to process the previous config, to avoid glitchy output when switching modes
+        baseband::set_subghzd_config(modulation, receiver_model.sampling_rate());
+    };
+    signal_token_tick_second = rtc_time::signal_tick_second += [this]() {
+        on_tick_second();
+    };
+    options_mode.set_selected_index(modulation, true);
+    receiver_model.enable();
+}
+
+void SubCarView::on_tick_second() {
+    for (auto& entry : recent) {
+        entry.inc_age(1);
+    }
+    recent_entries_view.set_dirty();
+}
+
+void SubCarView::on_data(const SubCarDataMessage* data) {
+    SubCarRecentEntry key{data->sensorType, data->data, data->data2, data->bits};
+    if (logger && logging) {
+        logger->log_data(key);
+    }
+    auto matching_recent = find(recent, key.key());
+    if (matching_recent != std::end(recent)) {
+        // Found within. Move to front of list, increment counter.
+        (*matching_recent).reset_age();
+        recent.push_front(*matching_recent);
+        recent.erase(matching_recent);
+    } else {
+        recent.emplace_front(key);
+        truncate_entries(recent, 64);
+    }
+    recent_entries_view.set_dirty();
+}
+
+SubCarView::~SubCarView() {
+    rtc_time::signal_tick_second -= signal_token_tick_second;
+    receiver_model.disable();
+    baseband::shutdown();
+}
+
+const char* SubCarView::getSensorTypeName(FPROTO_SUBCAR_SENSOR type) {
+    switch (type) {
+        case FPC_SUZUKI:
+            return "Suzuki";
+        case FPC_VW:
+            return "VW";
+        case FPC_SUBARU:
+            return "Subaru";
+        case FPC_KIAV5:
+            return "Kia V5";
+        case FPC_KIAV3V4:
+            return "Kia V3/V4";
+        case FPC_KIAV2:
+            return "Kia V2";
+        case FPC_KIAV1:
+            return "Kia V1";
+        case FPC_KIAV0:
+            return "Kia V0";
+        case FPC_FORDV0:
+            return "Ford V0";
+        case FPC_FIATV0:
+            return "Fiat V0";
+        case FPC_BMWV0:
+            return "BMW V0";
+            /* case FPC_KIAV6:
+                 return "Kia V6";*/
+
+        case FPC_Invalid:
+        default:
+            return "Unknown";
+    }
+}
+
+std::string SubCarView::pad_string_with_spaces(int snakes) {
+    std::string paddedStr(snakes, ' ');
+    return paddedStr;
+}
+
+void SubCarView::on_freqchg(int64_t freq) {
+    field_frequency.set_value(freq);
+}
+
+void subaru_decode_count(const uint8_t* KB, uint16_t* count) {
+    uint8_t lo = 0;
+    if ((KB[4] & 0x40) == 0)
+        lo |= 0x01;
+    if ((KB[4] & 0x80) == 0)
+        lo |= 0x02;
+    if ((KB[5] & 0x01) == 0)
+        lo |= 0x04;
+    if ((KB[5] & 0x02) == 0)
+        lo |= 0x08;
+    if ((KB[6] & 0x01) == 0)
+        lo |= 0x10;
+    if ((KB[6] & 0x02) == 0)
+        lo |= 0x20;
+    if ((KB[5] & 0x40) == 0)
+        lo |= 0x40;
+    if ((KB[5] & 0x80) == 0)
+        lo |= 0x80;
+
+    uint8_t REG_SH1 = (KB[7] << 4) & 0xF0;
+    if (KB[5] & 0x04)
+        REG_SH1 |= 0x04;
+    if (KB[5] & 0x08)
+        REG_SH1 |= 0x08;
+    if (KB[6] & 0x80)
+        REG_SH1 |= 0x02;
+    if (KB[6] & 0x40)
+        REG_SH1 |= 0x01;
+
+    uint8_t REG_SH2 = ((KB[6] << 2) & 0xF0) | ((KB[7] >> 4) & 0x0F);
+
+    uint8_t SER0 = KB[3];
+    uint8_t SER1 = KB[1];
+    uint8_t SER2 = KB[2];
+
+    uint8_t total_rot = 4 + lo;
+    for (uint8_t i = 0; i < total_rot; ++i) {
+        uint8_t t_bit = (SER0 >> 7) & 1;
+        SER0 = ((SER0 << 1) & 0xFE) | ((SER1 >> 7) & 1);
+        SER1 = ((SER1 << 1) & 0xFE) | ((SER2 >> 7) & 1);
+        SER2 = ((SER2 << 1) & 0xFE) | t_bit;
+    }
+
+    uint8_t T1 = SER1 ^ REG_SH1;
+    uint8_t T2 = SER2 ^ REG_SH2;
+
+    uint8_t hi = 0;
+    if ((T1 & 0x10) == 0)
+        hi |= 0x04;
+    if ((T1 & 0x20) == 0)
+        hi |= 0x08;
+    if ((T2 & 0x80) == 0)
+        hi |= 0x02;
+    if ((T2 & 0x40) == 0)
+        hi |= 0x01;
+    if ((T1 & 0x01) == 0)
+        hi |= 0x40;
+    if ((T1 & 0x02) == 0)
+        hi |= 0x80;
+    if ((T2 & 0x08) == 0)
+        hi |= 0x20;
+    if ((T2 & 0x04) == 0)
+        hi |= 0x10;
+    *count = ((hi << 8) | lo) & 0xFFFF;
+}
+
+void SubCarRecentEntryDetailView::parseProtocol() {
+    btn = "";
+    cnt = SD_NO_CNT;
+    serial = 0;
+
+    if (entry_.sensorType == FPC_Invalid) return;
+
+    if (entry_.sensorType == FPC_SUZUKI) {
+        uint32_t data_high = (uint32_t)(entry_.data >> 32);
+        uint32_t data_low = (uint32_t)entry_.data;
+        serial = ((data_high & 0xFFF) << 16) | (data_low >> 16);
+        uint8_t buttonid = (data_low >> 12) & 0xF;
+        cnt = (data_high << 4) >> 16;
+        btn = to_string_dec_uint(buttonid);
+        return;
+    }
+    if (entry_.sensorType == FPC_VW) {
+        // uint32_t key_high = (entry_.data >> 32) & 0xFFFFFFFF;
+        uint32_t key_low = entry_.data & 0xFFFFFFFF;
+        serial = key_low;  // trimmed to 32 bits for VW
+        uint8_t check = entry_.data2 & 0xFF;
+        uint8_t btnid = (check >> 4) & 0xF;
+        switch (btnid) {
+            case 0x1:
+                btn = "UNLOCK";
+                break;
+            case 0x2:
+                btn = "LOCK";
+                break;
+            case 0x3:
+                btn = "Un+Lk";
+                break;
+            case 0x4:
+                btn = "TRUNK";
+                break;
+            case 0x5:
+                btn = "Un+Tr";
+                break;
+            case 0x6:
+                btn = "Lk+Tr";
+                break;
+            case 0x7:
+                btn = "Un+Lk+Tr";
+                break;
+            case 0x8:
+                btn = "PANIC";
+                break;
+            default:
+                btn = "Unknown";
+                break;
+        }
+    }
+    if (entry_.sensorType == FPC_SUBARU) {
+        uint8_t* data_bytes = (uint8_t*)entry_.data;
+        serial = ((uint32_t)data_bytes[1] << 16) | ((uint32_t)data_bytes[2] << 8) | data_bytes[3];
+        uint8_t button = data_bytes[0] & 0x0F;
+        btn = to_string_dec_uint(button);
+        uint16_t cnttmp = 0;
+        subaru_decode_count(data_bytes, &cnttmp);
+        cnt = cnttmp;
+    }
+
+    if (entry_.sensorType == FPC_KIAV5) {
+        uint64_t yek = 0;
+        for (int i = 0; i < 8; i++) {
+            uint8_t byte = (entry_.data2 >> (i * 8)) & 0xFF;
+            uint8_t reversed = 0;
+            for (int b = 0; b < 8; b++) {
+                if (byte & (1 << b))
+                    reversed |= (1 << (7 - b));
+            }
+            yek |= ((uint64_t)reversed << ((7 - i) * 8));
+        }
+        serial = (uint32_t)((yek >> 32) & 0x0FFFFFFF);
+        uint8_t button = (uint8_t)((yek >> 60) & 0x0F);
+        uint32_t encrypted = (uint32_t)(yek & 0xFFFFFFFF);
+        btn = to_string_dec_uint(button);
+        // decode
+        uint8_t keystore_bytes[] = {0x53, 0x54, 0x46, 0x52, 0x4b, 0x45, 0x30, 0x30};
+        uint8_t s0 = (encrypted & 0xFF);
+        uint8_t s1 = (encrypted >> 8) & 0xFF;
+        uint8_t s2 = (encrypted >> 16) & 0xFF;
+        uint8_t s3 = (encrypted >> 24) & 0xFF;
+        int round_index = 1;
+        for (size_t i = 0; i < 18; i++) {
+            uint8_t r = keystore_bytes[round_index] & 0xFF;
+            int steps = 8;
+            while (steps > 0) {
+                uint8_t base;
+                if ((s3 & 0x40) == 0) {
+                    base = (s3 & 0x02) == 0 ? 0x74 : 0x2E;
+                } else {
+                    base = (s3 & 0x02) == 0 ? 0x3A : 0x5C;
+                }
+
+                if (s2 & 0x08) {
+                    base = (((base >> 4) & 0x0F) | ((base & 0x0F) << 4)) & 0xFF;
+                }
+                if (s1 & 0x01) {
+                    base = ((base & 0x3F) << 2) & 0xFF;
+                }
+                if (s0 & 0x01) {
+                    base = (base << 1) & 0xFF;
+                }
+
+                uint8_t temp = (s3 ^ s1) & 0xFF;
+                s3 = ((s3 & 0x7F) << 1) & 0xFF;
+                if (s2 & 0x80) {
+                    s3 |= 0x01;
+                }
+                s2 = ((s2 & 0x7F) << 1) & 0xFF;
+                if (s1 & 0x80) {
+                    s2 |= 0x01;
+                }
+                s1 = ((s1 & 0x7F) << 1) & 0xFF;
+                if (s0 & 0x80) {
+                    s1 |= 0x01;
+                }
+                s0 = ((s0 & 0x7F) << 1) & 0xFF;
+
+                uint8_t chk = (base ^ (r ^ temp)) & 0xFF;
+                if (chk & 0x80) {
+                    s0 |= 0x01;
+                }
+                r = ((r & 0x7F) << 1) & 0xFF;
+                steps--;
+            }
+            round_index = (round_index - 1) & 0x7;
+        }
+        cnt = (s0 + (s1 << 8)) & 0xFFFF;
+    }
+
+    if (entry_.sensorType == FPC_KIAV3V4) {
+        // not decrypted!
+        serial = (uint32_t)entry_.data;
+        // uint8_t button = entry_.data2 & 0xFF;
+        btn = "?";  // to_string_dec_uint(button);
+    }
+
+    if (entry_.sensorType == FPC_KIAV2) {
+        serial = (uint32_t)((entry_.data >> 20) & 0xFFFFFFFF);
+        uint8_t button = (uint8_t)((entry_.data >> 16) & 0x0F);
+        uint16_t raw_count = (uint16_t)((entry_.data >> 4) & 0xFFF);
+        cnt = ((raw_count >> 4) | (raw_count << 8)) & 0xFFF;
+        btn = to_string_dec_uint(button);
+    }
+
+    if (entry_.sensorType == FPC_KIAV1) {
+        serial = (uint32_t)((entry_.data >> 24) & 0xFFFFFFFF);
+        uint8_t button = (uint8_t)((entry_.data >> 16) & 0xFF);
+        cnt = (uint8_t)((entry_.data >> 4) & 0xF) << 8 | ((entry_.data >> 8) & 0xFF);
+        btn = to_string_dec_uint(button);
+    }
+
+    if (entry_.sensorType == FPC_KIAV0) {
+        serial = (uint32_t)((entry_.data >> 12) & 0x0FFFFFFF);
+        uint8_t button = (entry_.data >> 8) & 0x0F;
+        cnt = (entry_.data >> 40) & 0xFFFF;
+        btn = to_string_dec_uint(button);
+    }
+    if (entry_.sensorType == FPC_FORDV0) {
+        uint8_t buf[13] = {0};
+
+        for (int i = 0; i < 8; ++i) {
+            buf[i] = (uint8_t)(entry_.data >> (56 - i * 8));
+        }
+
+        buf[8] = (uint8_t)(entry_.data2 >> 8);
+        buf[9] = (uint8_t)(entry_.data2 & 0xFF);
+        uint8_t tmp = buf[8];
+        uint8_t parity = 0;
+        uint8_t parity_any = (tmp != 0);
+        while (tmp) {
+            parity ^= (tmp & 1);
+            tmp >>= 1;
+        }
+        buf[11] = parity_any ? parity : 0;
+        uint8_t xor_byte;
+        uint8_t limit;
+        if (buf[11]) {
+            xor_byte = buf[7];
+            limit = 7;
+        } else {
+            xor_byte = buf[6];
+            limit = 6;
+        }
+
+        for (int idx = 1; idx < limit; ++idx) {
+            buf[idx] ^= xor_byte;
+        }
+
+        if (buf[11] == 0) {
+            buf[7] ^= xor_byte;
+        }
+
+        uint8_t orig_b7 = buf[7];
+        buf[7] = (orig_b7 & 0xAA) | (buf[6] & 0x55);
+        uint8_t mixed = (buf[6] & 0xAA) | (orig_b7 & 0x55);
+        buf[12] = mixed;
+        buf[6] = mixed;
+
+        uint32_t serial_le = ((uint32_t)buf[1]) |
+                             ((uint32_t)buf[2] << 8) |
+                             ((uint32_t)buf[3] << 16) |
+                             ((uint32_t)buf[4] << 24);
+
+        serial = ((serial_le & 0xFF) << 24) |
+                 (((serial_le >> 8) & 0xFF) << 16) |
+                 (((serial_le >> 16) & 0xFF) << 8) |
+                 ((serial_le >> 24) & 0xFF);
+
+        uint8_t button = (buf[5] >> 4) & 0x0F;
+
+        cnt = ((buf[5] & 0x0F) << 16) |
+              (buf[6] << 8) |
+              buf[7];
+        btn = to_string_dec_uint(button);
+    }
+
+    if (entry_.sensorType == FPC_FIATV0) {
+        serial = (uint32_t)(entry_.data & 0xFFFFFFFF);
+        cnt = (uint32_t)((entry_.data >> 32) & 0xFFFFFFFF);
+        uint8_t button = (uint8_t)(entry_.data2 & 0xFF);
+        btn = to_string_dec_uint(button);
+    }
+
+    if (entry_.sensorType == FPC_BMWV0) {
+        serial = (uint32_t)((entry_.data >> 12) & 0x0FFFFFFF);
+        uint8_t button = (entry_.data >> 8) & 0x0F;
+        cnt = (entry_.data >> 40) & 0xFFFF;
+        btn = to_string_dec_uint(button);
+    }
+
+    /*if (entry_.sensorType == FPC_KIAV6) {
+        // not decrypted!
+        serial = 0;
+        btn = "?";
+        cnt = 0;
+    }*/
+
+    return;
+}
+
+}  // namespace ui::external_app::subcarrx
+
+namespace ui {
+
+template <>
+void RecentEntriesTable<ui::external_app::subcarrx::SubCarRecentEntries>::draw(
+    const Entry& entry,
+    const Rect& target_rect,
+    Painter& painter,
+    const Style& style,
+    ui::RecentEntriesColumns& columns) {
+    std::string line{};
+    line.reserve(30);
+
+    line = ui::external_app::subcarrx::SubCarView::getSensorTypeName((FPROTO_SUBCAR_SENSOR)entry.sensorType);
+    line = line + " " + to_string_hex(entry.data << 32);
+    line.resize(columns.at(0).second, ' ');
+    std::string ageStr = to_string_dec_uint(entry.age);
+    std::string bitsStr = to_string_dec_uint(entry.bits);
+    line += ui::external_app::subcarrx::SubCarView::pad_string_with_spaces(5 - bitsStr.length()) + bitsStr;
+    line += ui::external_app::subcarrx::SubCarView::pad_string_with_spaces(4 - ageStr.length()) + ageStr;
+
+    line.resize(target_rect.width() / 8, ' ');
+    painter.draw_string(target_rect.location(), style, line);
+}
+
+}  // namespace ui

firmware/application/external/subcarrx/ui_subcar.hpp

@@ -0,0 +1,228 @@
+/*
+ * Copyright (C) 2026 HTotoo
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+/*
+   This and The other files related to this is based on a lot of great people's work. https://github.com/RocketGod-git/ProtoPirate Check the repo, and the credits inside.
+*/
+
+#ifndef __UI_SubCar_H__
+#define __UI_SubCar_H__
+
+#define SD_NO_SERIAL 0xFFFFFFFF
+#define SD_NO_BTN 0xFF
+#define SD_NO_CNT 0xFF
+
+#include "ui.hpp"
+#include "ui_navigation.hpp"
+#include "ui_receiver.hpp"
+#include "ui_freq_field.hpp"
+#include "app_settings.hpp"
+#include "radio_state.hpp"
+#include "utility.hpp"
+#include "log_file.hpp"
+#include "recent_entries.hpp"
+
+#include "../../baseband/fprotos/subcartypes.hpp"
+
+using namespace ui;
+
+namespace ui::external_app::subcarrx {
+
+struct SubCarRecentEntry {
+    using Key = uint64_t;
+    static constexpr Key invalid_key = 0x0fffffff;
+    uint8_t sensorType = FPC_Invalid;
+    uint16_t bits = 0;
+    uint16_t age = 0;  // updated on each seconds, show how long the signal was last seen
+    uint64_t data = 0;
+    uint64_t data2 = 0;
+    SubCarRecentEntry() {}
+    SubCarRecentEntry(
+        uint8_t sensorType,
+        uint64_t data = 0,
+        uint64_t data2 = 0,
+        uint16_t bits = 0)
+        : sensorType{sensorType},
+          bits{bits},
+          data{data},
+          data2{data2} {
+    }
+    Key key() const {
+        return (data ^ ((static_cast<uint64_t>(sensorType) & 0xFF) << 0));  // should be optimized...
+    }
+    void inc_age(int delta) {
+        if (UINT16_MAX - delta > age) age += delta;
+    }
+    void reset_age() {
+        age = 0;
+    }
+
+    std::string to_csv();
+};
+
+class SubCarLogger {
+   public:
+    Optional<File::Error> append(const std::filesystem::path& filename) {
+        return log_file.append(filename);
+    }
+
+    void log_data(SubCarRecentEntry& data);
+    void write_header() {
+        log_file.write_entry(";Type; Bits; Data;");
+    }
+
+   private:
+    LogFile log_file{};
+};
+using SubCarRecentEntries = RecentEntries<SubCarRecentEntry>;
+using SubCarRecentEntriesView = RecentEntriesView<SubCarRecentEntries>;
+
+class SubCarView : public View {
+   public:
+    SubCarView(NavigationView& nav);
+    ~SubCarView();
+
+    void focus() override;
+
+    std::string title() const override { return "SubCar"; };
+    static const char* getSensorTypeName(FPROTO_SUBCAR_SENSOR type);
+    static std::string pad_string_with_spaces(int snakes);
+
+   private:
+    void on_tick_second();
+    void on_data(const SubCarDataMessage* data);
+
+    NavigationView& nav_;
+    RxRadioState radio_state_{
+        433'920'000 /* frequency */,
+        1'750'000 /* bandwidth */,
+        4'000'000 /* sampling rate */,
+        ReceiverModel::Mode::AMAudio};
+    bool logging = false;
+    uint8_t modulation = 0;
+    app_settings::SettingsManager settings_{
+        "rx_subcar",
+        app_settings::Mode::RX,
+        {
+            {"log"sv, &logging},
+            {"modulationmode"sv, &modulation},
+        }};
+
+    SubCarRecentEntries recent{};
+
+    RFAmpField field_rf_amp{
+        {UI_POS_X(13), UI_POS_Y(0)}};
+    LNAGainField field_lna{
+        {UI_POS_X(15), UI_POS_Y(0)}};
+    VGAGainField field_vga{
+        {UI_POS_X(18), UI_POS_Y(0)}};
+    RSSI rssi{
+        {UI_POS_X(21), 0, UI_POS_WIDTH_REMAINING(24), 4}};
+    Channel channel{
+        {UI_POS_X(21), 5, UI_POS_WIDTH_REMAINING(24), 4},
+    };
+    RxFrequencyField field_frequency{
+        {UI_POS_X(0), UI_POS_Y(0)},
+        nav_};
+
+    SignalToken signal_token_tick_second{};
+
+    Button button_clear_list{
+        {UI_POS_X(0), UI_POS_Y(1), UI_POS_WIDTH(7), UI_POS_HEIGHT(2)},
+        "Clear"};
+
+    Checkbox check_log{
+        {UI_POS_X(8), UI_POS_Y(1)},
+        3,
+        "Log",
+        true};
+
+    Labels labels{
+        {{UI_POS_X(15), UI_POS_Y(1)}, "Mode:", Theme::getInstance()->fg_light->foreground},
+    };
+    ui::OptionsField options_mode{
+        {UI_POS_X(22), UI_POS_Y(1)},
+        3,
+        {{"AM", 0}, {"FM", 1}}};
+
+    static constexpr auto header_height = 3 * 16;
+
+    std::unique_ptr<SubCarLogger> logger{};
+
+    ui::RecentEntriesColumns columns{{
+        {"Type", 0},
+        {"Bits", 4},
+        {"Age", 3},
+    }};
+    SubCarRecentEntriesView recent_entries_view{columns, recent};
+
+    void on_freqchg(int64_t freq);
+    MessageHandlerRegistration message_handler_freqchg{
+        Message::ID::FreqChangeCommand,
+        [this](Message* const p) {
+            const auto message = static_cast<const FreqChangeCommandMessage*>(p);
+            this->on_freqchg(message->freq);
+        }};
+
+    MessageHandlerRegistration message_handler_packet{
+        Message::ID::SubCarData,
+        [this](Message* const p) {
+            const auto message = static_cast<const SubCarDataMessage*>(p);
+            this->on_data(message);
+        }};
+};
+
+class SubCarRecentEntryDetailView : public View {
+   public:
+    SubCarRecentEntryDetailView(NavigationView& nav, const SubCarRecentEntry& entry);
+
+    void update_data();
+    void focus() override;
+
+   private:
+    NavigationView& nav_;
+    SubCarRecentEntry entry_{};
+
+    uint32_t serial = 0;
+    std::string btn = "";
+    uint32_t cnt = SD_NO_CNT;
+
+    Text text_type{{UI_POS_X(0), UI_POS_Y(1), UI_POS_WIDTH(15), UI_POS_HEIGHT(1)}, "?"};
+    Text text_id{{UI_POS_X(6), UI_POS_Y(2), UI_POS_WIDTH(10), UI_POS_HEIGHT(1)}, "?"};
+
+    Console console{
+        {UI_POS_X(0), UI_POS_Y(4), UI_POS_MAXWIDTH, screen_height - (4 * 16) - 36}};
+
+    Labels labels{
+        {{UI_POS_X(0), UI_POS_Y(0)}, "Type:", Theme::getInstance()->fg_light->foreground},
+        {{UI_POS_X(0), UI_POS_Y(2)}, "Serial: ", Theme::getInstance()->fg_light->foreground},
+        {{UI_POS_X(0), UI_POS_Y(3)}, "Data:", Theme::getInstance()->fg_light->foreground},
+    };
+
+    Button button_done{
+        {screen_width - 96 - 4, screen_height - 32 - 12, 96, 32},
+        "Done"};
+
+    void parseProtocol();
+};
+
+}  // namespace ui::external_app::subcarrx
+
+#endif /*__UI_SubCar_H__*/

firmware/application/external/tetris/ui_tetris.cpp

@@ -598,8 +598,7 @@ void pause_game() {
     joystick.detach();
     locate((INFO_LEFT + SCREEN_WIDTH) / 2 - 25, 200);
     printf("PAUSED");
-    while ((get_switches_state().to_ulong() & 0x10) == 0)
-        ;
+    while ((get_switches_state().to_ulong() & 0x10) == 0);
     fillrect(INFO_LEFT, 195, SCREEN_WIDTH, 210, Black);
     joystick.attach(&ReadJoystickForFigure, 0.3);
     game.attach(&PlayGame, delays[level]);

firmware/application/external/tpmsrx/tpms_app.hpp

@@ -99,7 +99,7 @@ class TPMSAppView : public View {
 
     // Prevent painting of region covered entirely by a child.
     // TODO: Add flag to View that specifies view does not need to be cleared before painting.
-    void paint(Painter&) override{};
+    void paint(Painter&) override {};
 
     void focus() override;
 

firmware/application/external/waterfall_designer/main.cpp

@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2025 Bernd Herzog
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "ui.hpp"
+#include "ui_waterfall_designer.hpp"
+#include "ui_navigation.hpp"
+#include "external_app.hpp"
+
+namespace ui::external_app::waterfall_designer {
+void initialize_app(ui::NavigationView& nav) {
+    nav.push<WaterfallDesignerView>();
+}
+}  // namespace ui::external_app::waterfall_designer
+
+extern "C" {
+
+__attribute__((section(".external_app.app_waterfall_designer.application_information"), used)) application_information_t _application_information_waterfall_designer = {
+    /*.memory_location = */ (uint8_t*)0x00000000,
+    /*.externalAppEntry = */ ui::external_app::waterfall_designer::initialize_app,
+    /*.header_version = */ CURRENT_HEADER_VERSION,
+    /*.app_version = */ VERSION_MD5,
+
+    /*.app_name = */ "Wt Design",
+    /*.bitmap_data = */ {
+        0x00,
+        0x00,
+        0x00,
+        0x00,
+        0xFE,
+        0x7F,
+        0x03,
+        0xC0,
+        0x53,
+        0xD5,
+        0xAB,
+        0xCA,
+        0x53,
+        0xD5,
+        0xAB,
+        0xCA,
+        0x53,
+        0xD5,
+        0xAB,
+        0xCA,
+        0x53,
+        0xD5,
+        0x03,
+        0xC0,
+        0xFF,
+        0xFF,
+        0xFB,
+        0xD7,
+        0xFE,
+        0x7F,
+        0x00,
+        0x00,
+    },
+    /*.icon_color = */ ui::Color::cyan().v,
+    /*.menu_location = */ app_location_t::UTILITIES,
+    /*.desired_menu_position = */ -1,
+
+    /*.m4_app_tag = portapack::spi_flash::image_tag_none */ {'P', 'C', 'A', 'P'},
+    /*.m4_app_offset = */ 0x00000000,  // will be filled at compile time
+};
+}

firmware/application/external/waterfall_designer/ui_waterfall_designer.cpp

@@ -0,0 +1,503 @@
+/*
+ * Copyleft Mr. Robot
+ * Copyright HTotoo
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "ui_waterfall_designer.hpp"
+#include "baseband_api.hpp"
+#include "portapack.hpp"
+#include "ui_freqman.hpp"
+#include "file_path.hpp"
+#include "ui_fileman.hpp"
+#include "file_reader.hpp"
+#include "ui_textentry.hpp"
+
+using namespace portapack;
+
+namespace ui::external_app::waterfall_designer {
+
+WaterfallDesignerView::WaterfallDesignerView(NavigationView& nav)
+    : nav_{nav} {
+    baseband::run_prepared_image(portapack::memory::map::m4_code.base());
+
+    add_children({&labels,
+                  &field_frequency,
+                  &field_frequency_step,
+                  &field_rf_amp,
+                  &field_lna,
+                  &field_vga,
+                  &option_bandwidth,
+                  &record_view,
+                  &menu_view,
+                  &button_new,
+                  &button_open,
+                  &button_save,
+                  &button_add_level,
+                  &button_remove_level,
+                  &button_edit_color,
+                  &button_apply_setting,
+                  &waterfall});
+    ensure_directory(waterfalls_dir);
+    ui::Rect waterfall_rect{0, header_height, screen_rect().width(), screen_rect().height() - header_height};
+    waterfall.set_parent_rect(waterfall_rect);
+
+    menu_view.set_parent_rect({0, 1 * 16, screen_width, 7 * 16});
+
+    field_frequency_step.set_by_value(receiver_model.frequency_step());
+    field_frequency_step.on_change = [this](size_t, OptionsField::value_t v) {
+        receiver_model.set_frequency_step(v);
+        this->field_frequency.set_step(v);
+    };
+
+    freqman_set_bandwidth_option(SPEC_MODULATION, option_bandwidth);
+    option_bandwidth.on_change = [this](size_t, uint32_t new_capture_rate) {
+        /* Nyquist would imply a sample rate of 2x bandwidth, but because the ADC
+         * provides 2 values (I,Q), the sample_rate is equal to bandwidth here. */
+
+        /* capture_rate (bandwidth) is used for FFT calculation and display LCD, and also in recording writing SD Card rate. */
+        /* ex. sampling_rate values, 4Mhz, when recording 500 kHz (BW) and fs 8 Mhz, when selected 1 Mhz BW ... */
+        /* ex. recording 500kHz BW to .C16 file, base_rate clock 500kHz x2(I,Q) x 2 bytes (int signed) =2MB/sec rate SD Card. */
+
+        waterfall.stop();
+
+        // record_view determines the correct oversampling to apply and returns the actual sample rate.
+        // NB: record_view is what actually updates proc_capture baseband settings.
+        auto actual_sample_rate = record_view.set_sampling_rate(new_capture_rate);
+
+        // Update the radio model with the actual sampling rate.
+        receiver_model.set_sampling_rate(actual_sample_rate);
+
+        // Get suitable anti-aliasing BPF bandwidth for MAX2837 given the actual sample rate.
+        auto anti_alias_filter_bandwidth = filter_bandwidth_for_sampling_rate(actual_sample_rate);
+        receiver_model.set_baseband_bandwidth(anti_alias_filter_bandwidth);
+
+        capture_rate = new_capture_rate;
+
+        waterfall.start();
+    };
+
+    button_new.on_select = [this]() {
+        on_create_new_profile();
+    };
+
+    button_open.on_select = [this]() {
+        on_open_profile();
+    };
+
+    button_save.on_select = [this]() {
+        on_save_profile();
+    };
+
+    button_add_level.on_select = [this]() {
+        on_add_level();
+    };
+
+    button_remove_level.on_select = [this]() {
+        on_remove_level();
+    };
+
+    button_edit_color.on_select = [this]() {
+        on_edit_color();
+    };
+
+    button_apply_setting.on_select = [this]() {
+        if_apply_setting = true;
+        on_apply_current_to_wtf();
+        // nav_.pop();
+    };
+
+    menu_view.on_highlight = [this]() {
+        highlighted_index_ = menu_view.highlighted_index();
+    };
+
+    receiver_model.enable();
+    option_bandwidth.set_by_value(capture_rate);
+
+    record_view.on_error = [&nav](std::string message) {
+        nav.display_modal("Error", message);
+    };
+
+    button_save.hidden(true);
+    button_add_level.hidden(true);
+    button_remove_level.hidden(true);
+    button_edit_color.hidden(true);
+    button_apply_setting.hidden(true);
+
+    refresh_menu_view();
+}
+
+WaterfallDesignerView::WaterfallDesignerView(
+    NavigationView& nav,
+    ReceiverModel::settings_t override)
+    : WaterfallDesignerView(nav) {
+    // Settings to override when launched from another app (versus from AppSettings .ini file)
+    field_frequency.set_value(override.frequency_app_override);
+}
+
+WaterfallDesignerView::~WaterfallDesignerView() {
+    if (!if_apply_setting) restore_current_profile();
+    receiver_model.disable();
+    baseband::shutdown();
+}
+
+void WaterfallDesignerView::set_parent_rect(const Rect new_parent_rect) {
+    View::set_parent_rect(new_parent_rect);
+
+    ui::Rect waterfall_rect{0, header_height, new_parent_rect.width(), new_parent_rect.height() - header_height};
+    waterfall.set_parent_rect(waterfall_rect);
+}
+
+void WaterfallDesignerView::focus() {
+    button_open.focus();
+}
+
+void WaterfallDesignerView::on_freqchg(int64_t freq) {
+    field_frequency.set_value(freq);
+}
+
+void WaterfallDesignerView::on_open_profile() {
+    auto open_view = nav_.push<FileLoadView>(".txt");
+    open_view->push_dir(waterfalls_dir);
+    open_view->on_changed = [this](std::filesystem::path new_file_path) {
+        on_profile_changed(new_file_path);
+    };
+}
+
+void WaterfallDesignerView::on_profile_changed(std::filesystem::path new_profile_path) {
+    current_profile_path = new_profile_path;
+    profile_levels.clear();
+
+    File playlist_file;
+    auto error = playlist_file.open(new_profile_path.string());
+
+    if (error) return;
+
+    menu_view.clear();
+    auto reader = FileLineReader(playlist_file);
+
+    for (const auto& line : reader) {
+        profile_levels.push_back(line);
+    }
+
+    for (auto& line : profile_levels) {
+        // remove empty lines
+        if (line == "\n" || line == "\r\n" || line == "\r") {
+            profile_levels.erase(std::remove(profile_levels.begin(), profile_levels.end(), line), profile_levels.end());
+        }
+
+        // remove line end \n etc
+        if (line.length() > 0 && (line[line.length() - 1] == '\n' || line[line.length() - 1] == '\r')) {
+            line = line.substr(0, line.length() - 1);
+        }
+    }
+
+    button_save.hidden(false);
+    button_add_level.hidden(false);
+    button_remove_level.hidden(false);
+    button_edit_color.hidden(false);
+    button_apply_setting.hidden(false);
+
+    refresh_menu_view();
+    on_apply_current_to_wtf();
+}
+
+void WaterfallDesignerView::refresh_menu_view() {
+    menu_view.clear();
+
+    for (const auto& line : profile_levels) {
+        if (line.length() == 0 || line[0] == '#') {
+            menu_view.add_item({line,
+                                ui::Color::grey(),
+                                &bitmap_icon_notepad,
+                                [this](KeyEvent) {
+                                    button_add_level.focus();
+                                }});
+        } else {
+            // index,R,G,B
+            size_t pos = 0;
+            size_t next_pos = 0;
+
+            // pass index
+            next_pos = line.find(',', pos);
+            if (next_pos == std::string::npos) continue;
+            pos = next_pos + 1;
+
+            // r
+            next_pos = line.find(',', pos);
+            if (next_pos == std::string::npos) continue;
+            uint8_t r = static_cast<uint8_t>(std::stoi(line.substr(pos, next_pos - pos)));
+            pos = next_pos + 1;
+
+            // g
+            next_pos = line.find(',', pos);
+            if (next_pos == std::string::npos) continue;
+            uint8_t g = static_cast<uint8_t>(std::stoi(line.substr(pos, next_pos - pos)));
+            pos = next_pos + 1;
+
+            // b
+            uint8_t b = static_cast<uint8_t>(std::stoi(line.substr(pos)));
+
+            ui::Color color = ui::Color(r, g, b);
+            menu_view.add_item({line,
+                                color,
+                                &bitmap_icon_cwgen,
+                                [this](KeyEvent) {
+                                    button_remove_level.focus();
+                                }});
+        }
+    }
+    set_dirty();
+}
+
+void WaterfallDesignerView::on_apply_current_to_wtf() {
+    std::filesystem::path system_read_path = "waterfall.txt";
+    copy_file(current_profile_path, system_read_path);
+
+    waterfall.load_gradient();
+
+    set_dirty();
+}
+
+void WaterfallDesignerView::on_save_profile() {
+    if (current_profile_path.empty()) {
+        nav_.display_modal("Err", "No profile file loaded");
+        return;
+    } else if (profile_levels.empty()) {
+        nav_.display_modal("Err", "List is empty");
+        return;
+    }
+
+    File profile_file;
+    auto error = profile_file.open(current_profile_path.string(), false, false);
+
+    if (error) {
+        nav_.display_modal("Err", "open err");
+        return;
+    }
+
+    // clear file
+    profile_file.seek(0);
+    profile_file.truncate();
+
+    // write new data
+    for (const auto& entry : profile_levels) {
+        profile_file.write_line(entry);
+    }
+
+    nav_.display_modal("Save", "Saved profile\n" + current_profile_path.string());
+}
+
+void WaterfallDesignerView::on_add_level() {
+    if (highlighted_index_ >= profile_levels.size()) return;
+    if (profile_levels[highlighted_index_].empty()) return;
+    if (profile_levels[highlighted_index_][0] == '#') return;
+    if (profile_levels[highlighted_index_].find(',') == std::string::npos) return;
+    size_t insert_pos = highlighted_index_;
+    std::string new_entry = "0,128,128,128";
+    profile_levels.insert(profile_levels.begin() + insert_pos, new_entry);
+    refresh_menu_view();
+    on_edit_color();
+}
+
+void WaterfallDesignerView::on_remove_level() {
+    if (highlighted_index_ >= profile_levels.size()) return;
+    if (profile_levels[highlighted_index_].empty()) return;
+    if (profile_levels[highlighted_index_][0] == '#') return;
+    if (profile_levels[highlighted_index_].find(',') == std::string::npos) return;
+    profile_levels.erase(profile_levels.begin() + highlighted_index_);
+    refresh_menu_view();
+}
+
+void WaterfallDesignerView::on_edit_color() {
+    if (highlighted_index_ >= profile_levels.size()) return;
+    if (profile_levels[highlighted_index_].empty()) return;
+    if (profile_levels[highlighted_index_][0] == '#') return;
+    if (profile_levels[highlighted_index_].find(',') == std::string::npos) return;
+
+    auto color_picker_view = nav_.push<WaterfallDesignerColorPickerView>(profile_levels[highlighted_index_]);
+    color_picker_view->on_save = [this](std::string new_color) {
+        profile_levels[highlighted_index_] = new_color;
+        refresh_menu_view();
+        on_apply_current_to_wtf();
+    };
+}
+
+void WaterfallDesignerView::backup_current_profile() {
+    std::filesystem::path curren_wtf_path = "waterfall.txt";
+    std::filesystem::path backup_path = waterfalls_dir / "wtf_des_bk.bk";
+    copy_file(curren_wtf_path, backup_path);
+}
+
+void WaterfallDesignerView::restore_current_profile() {
+    std::filesystem::path backup_path = waterfalls_dir / "wtf_des_bk.bk";
+    std::filesystem::path put_back_path = "waterfall.txt";
+    copy_file(backup_path, put_back_path);
+    delete_file(backup_path);
+}
+
+void WaterfallDesignerView::on_apply_setting() {
+}
+
+void WaterfallDesignerView::on_create_new_profile() {
+    text_prompt(
+        nav_,
+        file_name_buffer,
+        32 - 4,  // fat32
+        ENTER_KEYBOARD_MODE_ALPHA,
+        [this](std::string& buffer) {
+            if (buffer.empty()) return;
+
+            if (buffer.length() < 4 || buffer.substr(buffer.length() - 4) != ".txt") {
+                buffer += ".txt";
+            }
+
+            File new_file;
+            auto error = new_file.create(waterfalls_dir / buffer);
+            if (error) {
+                nav_.display_modal("Err", "create file err");
+                return;
+            }
+
+            profile_levels.clear();
+            current_profile_path = waterfalls_dir / buffer;
+            on_profile_changed(current_profile_path);
+        });
+}
+
+WaterfallDesignerColorPickerView::WaterfallDesignerColorPickerView(NavigationView& nav, std::string color_str)
+    : nav_{nav},
+      color_str_{color_str} {
+    add_children({&labels,
+                  &field_red,
+                  &field_green,
+                  &field_blue,
+                  &field_step,
+                  &field_index,
+                  &progressbar,
+                  &button_save});
+
+    progressbar.set_max(UINT8_MAX);
+
+    size_t pos = 0;
+    size_t next_pos = 0;
+
+    // index
+    next_pos = color_str.find(',', pos);
+    if (next_pos != std::string::npos) {
+        index_ = static_cast<uint8_t>(std::stoi(color_str.substr(pos, next_pos - pos)));
+        pos = next_pos + 1;
+    }
+
+    // r
+    next_pos = color_str.find(',', pos);
+    if (next_pos != std::string::npos) {
+        red_ = static_cast<uint8_t>(std::stoi(color_str.substr(pos, next_pos - pos)));
+        pos = next_pos + 1;
+    }
+
+    // g
+    next_pos = color_str.find(',', pos);
+    if (next_pos != std::string::npos) {
+        green_ = static_cast<uint8_t>(std::stoi(color_str.substr(pos, next_pos - pos)));
+        pos = next_pos + 1;
+    }
+
+    // b
+    blue_ = static_cast<uint8_t>(std::stoi(color_str.substr(pos)));
+
+    field_red.set_value(red_);
+    field_green.set_value(green_);
+    field_blue.set_value(blue_);
+    field_index.set_value(index_);
+
+    // cb
+    field_red.on_change = [this](int32_t) {
+        update_color_index();
+    };
+
+    field_green.on_change = [this](int32_t) {
+        update_color_index();
+    };
+
+    field_blue.on_change = [this](int32_t) {
+        update_color_index();
+    };
+
+    button_save.on_select = [this](Button&) {
+        if (on_save) on_save(build_color_str());
+        nav_.pop();
+    };
+
+    field_index.on_change = [this](int32_t) {
+        update_color_index();
+    };
+
+    field_step.on_change = [this](int32_t) {
+        field_red.set_step(field_step.value());
+        field_green.set_step(field_step.value());
+        field_blue.set_step(field_step.value());
+        field_index.set_step(field_step.value());
+    };
+
+    update_color_index();
+}
+
+void WaterfallDesignerColorPickerView::focus() {
+    button_save.focus();
+}
+
+void WaterfallDesignerColorPickerView::update_color_index() {
+    index_ = static_cast<uint8_t>(field_index.value());
+    red_ = static_cast<uint8_t>(field_red.value());
+    green_ = static_cast<uint8_t>(field_green.value());
+    blue_ = static_cast<uint8_t>(field_blue.value());
+
+    const Rect preview_rect{screen_width - 48, 1 * 16, 40, 40};
+
+    Painter painter_instance_2;
+    painter_instance_2.fill_rectangle(
+        {preview_rect.left(), preview_rect.top(), preview_rect.width(), preview_rect.height()},
+        ui::Color(red_, green_, blue_));
+}
+
+void WaterfallDesignerColorPickerView::paint(Painter& painter) {
+    // this is not duplicated code.
+    // because need to display color when enter,
+    // but it is too early to call update_color() in the constructor.
+
+    const Rect preview_rect{screen_width - 48, 1 * 16, 40, 40};
+
+    painter.fill_rectangle(
+        {preview_rect.left(), preview_rect.top(), preview_rect.width(), preview_rect.height()},
+        ui::Color(red_, green_, blue_));
+}
+
+std::string WaterfallDesignerColorPickerView::build_color_str() {
+    size_t index_pos = color_str_.find(',');
+    if (index_pos != std::string::npos) {
+        return color_str_.substr(0, index_pos + 1) +
+               to_string_dec_uint(red_) + "," +
+               to_string_dec_uint(green_) + "," +
+               to_string_dec_uint(blue_);
+    }
+    return to_string_dec_uint(index_) + "," + to_string_dec_uint(red_) + "," + to_string_dec_uint(green_) + "," + to_string_dec_uint(blue_);
+}
+
+} /* namespace ui::external_app::waterfall_designer */

firmware/application/external/waterfall_designer/ui_waterfall_designer.hpp

@@ -0,0 +1,265 @@
+/*
+ * Copyleft Mr. Robot
+ * Copyright HTotoo
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __WATERFALL_DESIGNER_APP_HPP__
+#define __WATERFALL_DESIGNER_APP_HPP__
+
+#include "ui_widget.hpp"
+#include "ui_navigation.hpp"
+#include "ui_receiver.hpp"
+#include "ui_freq_field.hpp"
+#include "ui_record_view.hpp"
+#include "ui_spectrum.hpp"
+#include "app_settings.hpp"
+#include "radio_state.hpp"
+#include "file_path.hpp"
+
+namespace ui::external_app::waterfall_designer {
+
+enum class ColorComponent {
+    RED,
+    GREEN,
+    BLUE
+};
+
+class WaterfallDesignerColorPickerView : public View {
+   public:
+    std::function<void(std::string)> on_save{};
+
+    WaterfallDesignerColorPickerView(NavigationView& nav, std::string color_str);
+
+    std::string title() const override { return "Color Picker"; };
+    void focus() override;
+    void paint(Painter& painter) override;
+
+   private:
+    NavigationView& nav_;
+    std::string color_str_;
+    uint8_t index_{0};
+    uint8_t red_{0};
+    uint8_t green_{0};
+    uint8_t blue_{0};
+
+    void update_color_index();
+    std::string build_color_str();
+
+    Labels labels{
+        {{0 * 8, 0 * 16}, "Index", Theme::getInstance()->fg_light->foreground},
+        {{0 * 8, 2 * 16}, "Red", Theme::getInstance()->fg_light->foreground},
+        {{0 * 8, 4 * 16}, "Green", Theme::getInstance()->fg_light->foreground},
+        {{0 * 8, 6 * 16}, "Blue", Theme::getInstance()->fg_light->foreground},
+        {{0 * 8, 8 * 16}, "Step", Theme::getInstance()->fg_light->foreground}};
+
+    NumberField field_index{
+        {0 * 8, 1 * 16},
+        3,
+        {0, 255},
+        1,
+        ' '};
+
+    NumberField field_red{
+        {0 * 8, 3 * 16},
+        3,
+        {0, 255},
+        1,
+        ' '};
+
+    NumberField field_green{
+        {0 * 8, 5 * 16},
+        3,
+        {0, 255},
+        1,
+        ' '};
+
+    NumberField field_blue{
+        {0 * 8, 7 * 16},
+        3,
+        {0, 255},
+        1,
+        ' '};
+
+    NumberField field_step{
+        {0 * 8, 9 * 16},
+        3,
+        {0, 255},
+        1,
+        ' '};
+
+    ProgressBar progressbar{
+        {0 * 8,
+         screen_height - 4 * 16 - 2 * 16 - 1 * 16,
+         screen_width,
+         2 * 16}};
+
+    Button button_save{
+        {0, screen_height - 4 * 16, screen_width, 4 * 16},
+        "Save"};
+};
+
+class WaterfallDesignerView : public View {
+   public:
+    WaterfallDesignerView(NavigationView& nav);
+    WaterfallDesignerView(NavigationView& nav, ReceiverModel::settings_t override);
+    ~WaterfallDesignerView();
+
+    void focus() override;
+    void set_parent_rect(const Rect new_parent_rect) override;
+
+    std::string title() const override { return "Wtf Design"; };
+
+   private:
+    uint32_t capture_rate{500000};
+    uint32_t file_format{0};
+    uint32_t highlighted_index_{0};
+    bool trim{false};
+    std::filesystem::path current_profile_path = "";
+    NavigationView& nav_;
+    RxRadioState radio_state_{ReceiverModel::Mode::Capture};
+    app_settings::SettingsManager settings_{
+        "rx_wtf_designer",
+        app_settings::Mode::RX,
+        {
+            {"capture_rate"sv, &capture_rate},
+            {"file_format"sv, &file_format},
+            {"trim"sv, &trim},
+        }};
+
+    Labels labels{
+        {{0 * 8, 1 * 16}, "Rate:", Theme::getInstance()->fg_light->foreground},
+        {{11 * 8, 1 * 16}, "Format:", Theme::getInstance()->fg_light->foreground},
+    };
+
+    RxFrequencyField field_frequency{
+        {0 * 8, 0 * 16},
+        nav_};
+
+    FrequencyStepView field_frequency_step{
+        {10 * 8, 0 * 16}};
+
+    RFAmpField field_rf_amp{
+        {16 * 8, 0 * 16}};
+
+    LNAGainField field_lna{
+        {18 * 8, 0 * 16}};
+
+    VGAGainField field_vga{
+        {21 * 8, 0 * 16}};
+
+    OptionsField option_bandwidth{
+        {24 * 8, 0 * 16},
+        5,
+        {}};
+
+    MenuView menu_view{};
+
+    NewButton button_new{
+        {0 * 8, 8 * 16, 4 * 8, 32},
+        {},
+        &bitmap_icon_file,
+        Theme::getInstance()->fg_blue->foreground};
+
+    NewButton button_open{
+        {4 * 8, 8 * 16, 4 * 8, 32},
+        {},
+        &bitmap_icon_load,
+        Theme::getInstance()->fg_blue->foreground};
+
+    NewButton button_save{
+        {8 * 8, 8 * 16, 4 * 8, 32},
+        {},
+        &bitmap_icon_save,
+        Theme::getInstance()->fg_blue->foreground};
+
+    NewButton button_add_level{
+        {12 * 8, 8 * 16, 4 * 8, 32},
+        {},
+        &bitmap_icon_add,
+        Theme::getInstance()->fg_blue->foreground};
+
+    NewButton button_remove_level{
+        {16 * 8, 8 * 16, 4 * 8, 32},
+        {},
+        &bitmap_icon_delete,
+        Theme::getInstance()->fg_blue->foreground};
+
+    NewButton button_edit_color{
+        {20 * 8, 8 * 16, 4 * 8, 32},
+        {},
+        &bitmap_icon_notepad,
+        Theme::getInstance()->fg_blue->foreground};
+
+    NewButton button_apply_setting{
+        {24 * 8, 8 * 16, 4 * 8, 32},
+        {},
+        &bitmap_icon_replay,
+        Theme::getInstance()->fg_blue->foreground};
+
+    void backup_current_profile();
+    void restore_current_profile();
+    void on_create_new_profile();
+    void on_open_profile();
+    void on_profile_changed(std::filesystem::path new_profile_path);
+    void on_save_profile();
+    void on_add_level();
+    void on_remove_level();
+    void on_edit_color();
+
+    void refresh_menu_view();
+
+    void on_apply_current_to_wtf();  // will restore if didn't apple, when distruct
+    void on_apply_setting();         // apply set
+
+    bool if_apply_setting{false};
+    /*NB:
+    this works as:
+    each time you change color, it apply as file realtime
+    however if you don't push the apply (play) btn, it would resotore in distructor,
+    if you push apply, it would apply and exit*/
+
+    std::vector<std::string> profile_levels{};
+
+    static constexpr ui::Dim header_height = 10 * 16;
+
+    RecordView record_view{// we still need it cuz it make waterfall correct
+                           {screen_width, screen_height, 30 * 8, 1 * 16},
+                           u"BBD_????.*",
+                           captures_dir,
+                           RecordView::FileType::RawS16,
+                           16384,
+                           3};
+
+    spectrum::WaterfallView waterfall{};
+    std::string file_name_buffer{};  // needed by text_prompy
+
+    MessageHandlerRegistration message_handler_freqchg{
+        Message::ID::FreqChangeCommand,
+        [this](Message* const p) {
+            const auto message = static_cast<const FreqChangeCommandMessage*>(p);
+            this->on_freqchg(message->freq);
+        }};
+
+    void on_freqchg(int64_t freq);
+};
+
+} /* namespace ui::external_app::waterfall_designer */
+
+#endif /*__WATERFALL_DESIGNER_APP_HPP__*/

firmware/application/file.hpp

@@ -315,7 +315,7 @@ class File {
     template <typename T>
     using Result = Result<T, Error>;
 
-    File(){};
+    File() {};
     ~File();
 
     File(File&& other) {

firmware/application/file_path.cpp

@@ -53,3 +53,5 @@ const std::filesystem::path hopper_dir = u"HOPPER";
 const std::filesystem::path subghz_dir = u"SUBGHZ";
 const std::filesystem::path waterfalls_dir = u"WATERFALLS";
 const std::filesystem::path macaddress_dir = u"MACADDRESS";
+const std::filesystem::path keeloq_keys_dir = u"KEELOQKEYS";
+const std::filesystem::path keeloq_remotes_dir = u"KEELOQREMOTES";

firmware/application/file_path.hpp

@@ -55,5 +55,7 @@ extern const std::filesystem::path hopper_dir;
 extern const std::filesystem::path subghz_dir;
 extern const std::filesystem::path waterfalls_dir;
 extern const std::filesystem::path macaddress_dir;
+extern const std::filesystem::path keeloq_keys_dir;
+extern const std::filesystem::path keeloq_remotes_dir;
 
 #endif /* __FILE_PATH_H__ */

firmware/application/freqman_db.cpp

@@ -122,7 +122,7 @@ options_t freqman_steps = {
     {"1kHz        ", 1000},
     {"5kHz (SA AM)", 5000},
     {"6.25kHz(NFM)", 6250},
-    {"8.33kHz(AIR)", 8330},
+    {"8.33kHz(AIR)", 8333},
     {"9kHz (EU AM)", 9000},
     {"10kHz(US AM)", 10000},
     {"12.5kHz(NFM)", 12500},
@@ -144,7 +144,7 @@ options_t freqman_steps_short = {
     {"1kHz", 1000},
     {"5kHz", 5000},
     {"6.25kHz", 6250},
-    {"8.33kHz", 8330},
+    {"8.33kHz", 8333},
     {"9kHz", 9000},
     {"10kHz", 10000},
     {"12.5kHz", 12500},

firmware/application/hackrf_core_mini.c

@@ -0,0 +1,56 @@
+#include "gpio_lpc.h"
+
+typedef enum {
+    LED1 = 0,
+    LED2 = 1,
+    LED3 = 2,
+    LED4 = 3,
+} led_t;
+
+/* GPIO Output PinMux */
+static struct gpio_t gpio_led[] = {
+    GPIO(2, 1),
+    GPIO(2, 2),
+    GPIO(2, 8),
+#ifdef RAD1O
+    GPIO(5, 26),
+#endif
+};
+
+void delay(uint32_t duration) {
+    while (duration--) {
+        /* cannot be optimized out */
+        __asm__ volatile("nop");
+    }
+}
+
+void delay_us_at_mhz(uint32_t us, uint32_t mhz) {
+    /* overflow-safe multiply */
+    uint64_t cycles64 = (uint64_t)us * (uint64_t)mhz;
+    if (cycles64 > UINT32_MAX) {
+        cycles64 = UINT32_MAX;
+    }
+    delay((uint32_t)cycles64);
+}
+
+void led_on(const led_t led) {
+    gpio_set(&gpio_led[led]);
+}
+
+void led_off(const led_t led) {
+    gpio_clear(&gpio_led[led]);
+}
+
+void halt_and_flash(const uint32_t duration) {
+    /* blink LED1, LED2, and LED3 */
+    while (1) {
+        led_on(LED1);
+        led_on(LED2);
+        led_on(LED3);
+        delay(duration);
+        led_off(LED1);
+        led_off(LED2);
+        led_off(LED3);
+        delay(duration);
+    }
+}

firmware/application/hw/debounce.cpp

@@ -37,6 +37,14 @@ void Debounce::enable_repeat() {
     repeat_enabled_ = true;
 }
 
+void Debounce::set_enable_repeat(bool enabled) {
+    repeat_enabled_ = enabled;
+}
+
+bool Debounce::get_repeat_enabled() {
+    return repeat_enabled_;
+}
+
 bool Debounce::get_long_press_enabled() const {
     return long_press_enabled_;
 }

firmware/application/hw/debounce.hpp

@@ -43,6 +43,8 @@ class Debounce {
     bool feed(const uint8_t bit);
     uint8_t state();
     void enable_repeat();
+    void set_enable_repeat(bool enabled);
+    bool get_repeat_enabled();
     bool get_long_press_enabled() const;
     void set_long_press_enabled(bool v);
     bool long_press_occurred();

firmware/application/hw/max2831.cpp

@@ -0,0 +1,441 @@
+/*
+ * Copyright (C) 2025 Great Scott Gadgets
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+/*
+ * MAX2831 driver ported from GSG HackRF reference implementation (max2831.c).
+ * Adapted to work with Mayhem's MAX283x abstraction layer.
+ */
+
+#ifdef PRALINE
+
+#include "max2831.hpp"
+
+#include "hackrf_hal.hpp"
+#include "hackrf_gpio.hpp"
+using namespace hackrf::one;
+
+#include "ch.h"
+#include "hal.h"
+
+#include <algorithm>
+#include <cstring>
+
+namespace max2831 {
+
+using namespace max283x;
+
+/*
+ * MAX2831 uses 9-bit SPI transfers.
+ * An 18-bit word is sent as two 9-bit transfers:
+ *   Word format: [VALUE:14][REG:4]
+ *   First transfer: bits 17:9 (high 9 bits)
+ *   Second transfer: bits 8:0 (low 9 bits)
+ *
+ * This matches the GSG reference implementation exactly.
+ */
+void MAX2831::write_reg(const uint8_t reg, const uint16_t value) {
+    uint32_t word = (((uint32_t)value & 0x3fff) << 4) | (reg & 0xf);
+    uint16_t values[2] = {
+        static_cast<uint16_t>(word >> 9),
+        static_cast<uint16_t>(word & 0x1ff)};
+    _target.transfer(values, 2);
+}
+
+void MAX2831::set_reg_field(const uint8_t reg, const uint16_t mask, const uint16_t value) {
+    _regs[reg] = (_regs[reg] & ~mask) | (value & mask);
+    mark_dirty(reg);
+}
+
+uint16_t MAX2831::get_reg_field(const uint8_t reg, const uint16_t mask, const uint8_t shift) {
+    return (_regs[reg] & mask) >> shift;
+}
+
+void MAX2831::mark_dirty(const uint8_t reg) {
+    _regs_dirty |= (1 << reg);
+}
+
+void MAX2831::mark_clean(const uint8_t reg) {
+    _regs_dirty &= ~(1 << reg);
+}
+
+void MAX2831::flush_reg(const uint8_t reg) {
+    write_reg(reg, _regs[reg]);
+    mark_clean(reg);
+}
+
+void MAX2831::flush_dirty() {
+    for (size_t r = 0; r < reg_count; r++) {
+        if ((_regs_dirty >> r) & 0x1) {
+            flush_reg(r);
+        }
+    }
+}
+
+void MAX2831::init() {
+    set_mode(Mode::Shutdown);
+
+    /* Configure GPIO pins for MAX2831 control */
+    gpio_max283x_enable.output();
+    gpio_max2831_rx_enable.output();
+    gpio_max2831_rxhp.output();
+    gpio_max2831_rxhp.write(0); /* RXHP low = 100 Hz HPF (default) */
+
+    /* Reset to default register values */
+    std::memcpy(_regs.data(), default_regs.data(), sizeof(_regs));
+    _regs_dirty = 0xFFFF;
+
+    /* Write default register values to chip */
+    flush_dirty();
+
+    /* Use SPI control instead of B1-B7 pins for gain settings.
+     * This matches the GSG reference: max2831_setup() */
+    set_reg_field(8, REG8_RXVGA_GAIN_SPI_EN, REG8_RXVGA_GAIN_SPI_EN);
+    set_reg_field(9, REG9_TXVGA_GAIN_SPI_EN, REG9_TXVGA_GAIN_SPI_EN);
+
+    /* Set initial gains - matches GSG reference */
+    set_reg_field(12, REG12_TXVGA_GAIN_MASK, 0x00); /* Minimum TX gain */
+    set_reg_field(7, REG7_RX_HPF_SEL_MASK, REG7_RX_HPF_30KHZ);
+    set_reg_field(11, REG11_LNA_GAIN_MASK, REG11_LNA_GAIN_MAX);
+    set_reg_field(11, REG11_RXVGA_GAIN_MASK, 0x18);  // Moderate RX VGA gain
+
+    /* FORCE MAXIMUM GAIN FOR TESTING */
+    // set_reg_field(11, REG11_RXVGA_GAIN_MASK, 0x1F);  // 62 dB VGA = MAX
+
+    /* Configure baseband filter for 8 MHz TX - matches GSG reference */
+    set_reg_field(8, REG8_LPF_COARSE_MASK, REG8_RX_LPF_7_5M);
+    set_reg_field(7, REG7_RX_LPF_FINE_MASK, REG7_RX_LPF_FINE_100);
+    set_reg_field(7, REG7_TX_LPF_FINE_MASK, REG7_TX_LPF_FINE_100);
+
+    /* Disable clock output */
+    set_reg_field(14, REG14_CLKOUT_PIN_EN, 0);
+
+    /* Write all modified registers */
+    flush_dirty();
+
+    set_mode(Mode::Standby);
+}
+
+void MAX2831::set_mode(const Mode mode) {
+    _mode = mode;
+
+    /*
+     * MAX2831 mode control via ENABLE and RXTX pins.
+     * From GSG hackrf max2831_target.c:
+     *
+     *   Shutdown: ENABLE=0, RXTX=0
+     *   Standby:  ENABLE=0, RXTX=1  (PLL/VCO/LO on, ready for quick TX/RX)
+     *   RX:       ENABLE=1, RXTX=0
+     *   TX:       ENABLE=1, RXTX=1
+     *
+     * Note: gpio_max2831_rx_enable is the RXTX mode select pin.
+     * RXTX=0 selects RX, RXTX=1 selects TX.
+     */
+
+    /* Handle calibration mode bits if needed */
+    bool tx_cal = (mode == Mode::Tx_Calibration);
+    bool rx_cal = (mode == Mode::Rx_Calibration);
+
+    uint16_t current_tx_cal = get_reg_field(6, REG6_TX_CAL_MODE_EN, REG6_TX_CAL_MODE_EN_SHIFT);
+    uint16_t current_rx_cal = get_reg_field(6, REG6_RX_CAL_MODE_EN, REG6_RX_CAL_MODE_EN_SHIFT);
+
+    if (current_tx_cal != (tx_cal ? 1 : 0)) {
+        set_reg_field(6, REG6_TX_CAL_MODE_EN, tx_cal ? REG6_TX_CAL_MODE_EN : 0);
+        flush_dirty();
+    }
+    if (current_rx_cal != (rx_cal ? 1 : 0)) {
+        set_reg_field(6, REG6_RX_CAL_MODE_EN, rx_cal ? REG6_RX_CAL_MODE_EN : 0);
+        flush_dirty();
+    }
+
+    switch (mode) {
+        default:
+        case Mode::Shutdown:
+            gpio_max2831_rx_enable.write(0); /* RXTX=0 */
+            gpio_max283x_enable.write(0);    /* ENABLE=0 */
+            break;
+        case Mode::Standby:
+            gpio_max2831_rx_enable.write(1); /* RXTX=1 */
+            gpio_max283x_enable.write(0);    /* ENABLE=0 */
+            break;
+        case Mode::Transmit:
+        case Mode::Tx_Calibration:
+            gpio_max2831_rx_enable.write(1); /* RXTX=1 for TX */
+            gpio_max283x_enable.write(1);    /* ENABLE=1 */
+            break;
+        case Mode::Receive:
+        case Mode::Rx_Calibration:
+            gpio_max2831_rx_enable.write(0); /* RXTX=0 for RX */
+            gpio_max283x_enable.write(1);    /* ENABLE=1 */
+            break;
+    }
+
+    /* Update LPF bandwidth for current mode */
+    if (_desired_lpf_bw > 0) {
+        set_lpf_bandwidth_internal(_desired_lpf_bw);
+    }
+}
+
+void MAX2831::set_tx_vga_gain(const int_fast8_t db) {
+    /* TX VGA gain: 0-31 dB in ~1 dB steps
+     * Register value: gain * 2 | 1, max 0x3F
+     * This matches GSG reference: max2831_set_txvga_gain() */
+    int_fast8_t db_clipped = std::max(0, std::min(31, (int)db));
+    uint16_t value = std::min((db_clipped << 1) | 1, 0x3f);
+    set_reg_field(12, REG12_TXVGA_GAIN_MASK, value);
+    flush_reg(12);
+}
+
+void MAX2831::set_lna_gain(const int_fast8_t db) {
+    /*
+     * LNA gain has 3 settings (from GSG reference):
+     *   MAX (33 dB), -16 dB from max (17 dB), -33 dB from max (0 dB)
+     * Map from MAX2837 8 dB steps for compatibility
+     */
+    uint16_t gain_val;
+    if (db >= 32) {
+        gain_val = REG11_LNA_GAIN_MAX;
+    } else if (db >= 16) {
+        gain_val = REG11_LNA_GAIN_M16;
+    } else {
+        gain_val = REG11_LNA_GAIN_M33;
+    }
+    set_reg_field(11, REG11_LNA_GAIN_MASK, gain_val);
+    flush_reg(11);
+}
+
+void MAX2831::set_vga_gain(const int_fast8_t db) {
+    /* VGA gain: 0-62 dB in 2 dB steps
+     * This matches GSG reference: max2831_set_vga_gain() */
+    if ((db & 0x1) || db > 62) {
+        return; /* Invalid: must be even and <= 62 */
+    }
+    int_fast8_t db_clipped = std::max(0, std::min(62, (int)db));
+    uint16_t value = (db_clipped >> 1) & 0x1f;
+    set_reg_field(11, REG11_RXVGA_GAIN_MASK, value);
+    flush_reg(11);
+}
+
+/*
+ * LPF bandwidth tables from GSG reference max2831.c
+ */
+struct lpf_ft_t {
+    uint32_t bandwidth_hz;
+    uint8_t ft;
+};
+
+struct lpf_ft_fine_t {
+    uint8_t percent;
+    uint8_t ft_fine;
+};
+
+/* Measured -0.5 dB complex baseband bandwidth for each register setting */
+static constexpr lpf_ft_t rx_lpf_ft[] = {
+    {11600000, REG8_RX_LPF_7_5M},
+    {15100000, REG8_RX_LPF_8_5M},
+    {22600000, REG8_RX_LPF_15M},
+    {28300000, REG8_RX_LPF_18M},
+    {0, 0},
+};
+
+static constexpr lpf_ft_fine_t rx_lpf_ft_fine[] = {
+    {90, REG7_RX_LPF_FINE_90},
+    {95, REG7_RX_LPF_FINE_95},
+    {100, REG7_RX_LPF_FINE_100},
+    {105, REG7_RX_LPF_FINE_105},
+    {110, REG7_RX_LPF_FINE_110},
+    {0, 0},
+};
+
+static constexpr lpf_ft_t tx_lpf_ft[] = {
+    {11900000, REG8_TX_LPF_8M},
+    {15800000, REG8_TX_LPF_11M},
+    {23600000, REG8_TX_LPF_16_5M},
+    {31300000, REG8_TX_LPF_22_5M},
+    {0, 0},
+};
+
+static constexpr lpf_ft_fine_t tx_lpf_ft_fine[] = {
+    {90, REG7_TX_LPF_FINE_90},
+    {95, REG7_TX_LPF_FINE_95},
+    {100, REG7_TX_LPF_FINE_100},
+    {105, REG7_TX_LPF_FINE_105},
+    {110, REG7_TX_LPF_FINE_110},
+    {115, REG7_TX_LPF_FINE_115},
+    {0, 0},
+};
+
+uint32_t MAX2831::set_lpf_bandwidth_internal(const uint32_t bandwidth_hz) {
+    const lpf_ft_t* coarse;
+    const lpf_ft_fine_t* fine;
+
+    if (_mode == Mode::Receive || _mode == Mode::Rx_Calibration) {
+        coarse = rx_lpf_ft;
+        fine = rx_lpf_ft_fine;
+    } else {
+        coarse = tx_lpf_ft;
+        fine = tx_lpf_ft_fine;
+    }
+
+    /* Find coarse and fine settings for LPF - matches GSG reference */
+    bool found = false;
+    const lpf_ft_fine_t* f = fine;
+    for (; coarse->bandwidth_hz != 0; coarse++) {
+        uint32_t coarse_aux = coarse->bandwidth_hz / 100;
+        for (f = fine; f->percent != 0; f++) {
+            if ((coarse_aux * f->percent) >= bandwidth_hz) {
+                found = true;
+                break;
+            }
+        }
+        if (found) break;
+    }
+
+    /* Use the widest setting if a wider bandwidth than our maximum is requested */
+    if (!found) {
+        coarse--;
+        f--;
+    }
+
+    /* Program found settings */
+    set_reg_field(8, REG8_LPF_COARSE_MASK, coarse->ft);
+    if (_mode == Mode::Receive || _mode == Mode::Rx_Calibration) {
+        set_reg_field(7, REG7_RX_LPF_FINE_MASK, f->ft_fine);
+    } else {
+        /* TX fine values are already shifted in the constants (REG7_TX_LPF_FINE_*) */
+        set_reg_field(7, REG7_TX_LPF_FINE_MASK, f->ft_fine);
+    }
+    flush_dirty();
+
+    return coarse->bandwidth_hz * f->percent / 100;
+}
+
+void MAX2831::set_lpf_rf_bandwidth_rx(const uint32_t bandwidth_minimum) {
+    _desired_lpf_bw = bandwidth_minimum;
+    if (_mode == Mode::Receive || _mode == Mode::Rx_Calibration) {
+        set_lpf_bandwidth_internal(bandwidth_minimum);
+    }
+}
+
+void MAX2831::set_lpf_rf_bandwidth_tx(const uint32_t bandwidth_minimum) {
+    _desired_lpf_bw = bandwidth_minimum;
+    if (_mode == Mode::Transmit || _mode == Mode::Tx_Calibration) {
+        set_lpf_bandwidth_internal(bandwidth_minimum);
+    }
+}
+
+bool MAX2831::set_frequency(const rf::Frequency lo_frequency) {
+    /*
+     * MAX2831 frequency synthesis from GSG reference max2831_set_frequency():
+     *   F_LO = F_REF * (N + F/2^20) / R
+     * Where:
+     *   F_REF = 40 MHz reference
+     *   R = reference divider (1 or 2), we use R=2
+     *   N = integer divider (8 bits)
+     *   F = fractional divider (20 bits)
+     *
+     * Using R=2: F_LO = 40M * (N + F/2^20) / 2 = 20M * (N + F/2^20)
+     */
+
+    /* MAX2831 supports 2.3-2.6 GHz */
+    if (lo_frequency < 2300000000ULL || lo_frequency > 2600000000ULL) {
+        return false;
+    }
+
+    /* From GSG reference: ASSUME 40MHz PLL. Ratio = F*R/40,000,000.
+     * TODO: fixed to R=2. Check if it's worth exploring R=1. */
+    uint32_t freq = lo_frequency;
+    freq += (20000000 >> 21); /* Round to nearest frequency */
+    uint32_t div_int = freq / 20000000;
+    uint32_t div_rem = freq % 20000000;
+    uint32_t div_frac = 0;
+    uint32_t div_cmp = 20000000;
+
+    for (int i = 0; i < 20; i++) {
+        div_frac <<= 1;
+        div_rem <<= 1;
+        if (div_rem >= div_cmp) {
+            div_frac |= 0x1;
+            div_rem -= div_cmp;
+        }
+    }
+
+    /* Write order matters - matches GSG reference */
+    /* REG 3: SYN_INT (bits 7:0) and SYN_FRAC_LO (bits 13:8) */
+    uint16_t reg3_val = (div_int & 0xFF) | ((div_frac & 0x3F) << 8);
+    _regs[3] = reg3_val;
+    mark_dirty(3);
+
+    /* REG 4: SYN_FRAC_HI (bits 13:0) - upper 14 bits of 20-bit fractional */
+    uint16_t reg4_val = (div_frac >> 6) & 0x3FFF;
+    _regs[4] = reg4_val;
+    mark_dirty(4);
+
+    flush_dirty();
+
+    return true;
+}
+
+void MAX2831::set_rx_LO_iq_phase_calibration(const size_t v) {
+    /* MAX2831 doesn't have the same IQ calibration as MAX2837 */
+    (void)v;
+}
+
+void MAX2831::set_tx_LO_iq_phase_calibration(const size_t v) {
+    /* MAX2831 doesn't have the same IQ calibration as MAX2837 */
+    (void)v;
+}
+
+void MAX2831::set_rx_buff_vcm(const size_t v) {
+    /* MAX2831 RX IQ common mode voltage is in register 15
+     * Values: 0=1.1V, 1=1.2V, 2=1.3V, 3=1.45V */
+    uint16_t vcm = std::min(v, (size_t)3) << REG15_RXIQ_VCM_SHIFT;
+    set_reg_field(15, REG15_RXIQ_VCM_MASK, vcm);
+    flush_reg(15);
+}
+
+int8_t MAX2831::temp_sense() {
+    /* MAX2831 temperature sensor can be read via RSSI MUX.
+     * This would require:
+     * 1. Switch RSSI_MUX to temperature mode
+     * 2. Read the ADC
+     * 3. Switch back to RSSI mode
+     * For now, return a placeholder value. */
+    return 25; /* Room temperature placeholder */
+}
+
+reg_t MAX2831::read(const address_t reg_num) {
+    /* MAX2831 doesn't support SPI read, return cached value */
+    if (reg_num < reg_count) {
+        return _regs[reg_num];
+    }
+    return 0;
+}
+
+void MAX2831::write(const address_t reg_num, const reg_t value) {
+    if (reg_num < reg_count) {
+        _regs[reg_num] = value & 0x3FFF; /* 14-bit registers */
+        write_reg(reg_num, _regs[reg_num]);
+        mark_clean(reg_num);
+    }
+}
+
+}  // namespace max2831
+#endif

firmware/application/hw/max2831.hpp

@@ -0,0 +1,220 @@
+/*
+ * Copyright (C) 2025 Great Scott Gadgets
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+/*
+ * MAX2831 driver ported from GSG HackRF reference implementation.
+ * Register definitions match max2831_regs.def from hackrf firmware.
+ */
+
+#ifndef __MAX2831_H__
+#define __MAX2831_H__
+
+#include "max283x.hpp"
+#include "gpio.hpp"
+#include "spi_arbiter.hpp"
+
+#include <cstdint>
+#include <array>
+
+namespace max2831 {
+
+using namespace max283x;
+
+/* MAX2831 has 16 registers, each containing 14 bits of data */
+constexpr size_t reg_count = 16;
+
+/* Default register values from GSG HackRF reference (max2831.c) */
+constexpr std::array<uint16_t, reg_count> default_regs = {
+    0x1740, /* 0: enable fractional mode (Table 16 recommends 0x0740, clearing unknown bit) */
+    0x119a, /* 1 */
+    0x1003, /* 2 */
+    0x0079, /* 3: PLL divider settings for 2437 MHz */
+    0x3666, /* 4: PLL divider settings for 2437 MHz */
+    0x00a4, /* 5: divide reference frequency by 2 */
+    0x0060, /* 6: enable TX power detector */
+    0x1022, /* 7: 110% TX LPF bandwidth */
+    0x2021, /* 8: pin control of RX gain, 11 MHz LPF bandwidth */
+    0x03b5, /* 9: pin control of TX gain */
+    0x1d80, /* 10: 3.5 us PA enable delay, zero PA bias */
+    0x0074, /* 11: LNA high gain, RX VGA moderate gain (Table 27 recommends 0x007f, maximum gain) */
+    0x0140, /* 12: TX VGA minimum */
+    0x0e92, /* 13 */
+    0x0100, /* 14: reference clock output disabled */
+    0x0145, /* 15: RX IQ common mode 1.1 V */
+};
+
+/*
+ * Register bit field definitions from max2831_regs.def
+ * Format: REG<num>_<field>_<info>
+ */
+
+/* REG 0: PLL Mode */
+constexpr uint16_t REG0_PLL_MODE_SHIFT = 10;
+constexpr uint16_t REG0_PLL_MODE_MASK = (1 << REG0_PLL_MODE_SHIFT);
+constexpr uint16_t REG0_PLL_MODE_INTEGER = 0;
+constexpr uint16_t REG0_PLL_MODE_FRACTIONAL = 1;
+
+/* REG 3: Synthesizer Integer and Fractional Low */
+constexpr uint16_t REG3_SYN_INT_SHIFT = 0;
+constexpr uint16_t REG3_SYN_INT_MASK = 0x00FF; /* D7:D0 - Integer divider (8 bits) */
+constexpr uint16_t REG3_SYN_FRAC_LO_SHIFT = 8;
+constexpr uint16_t REG3_SYN_FRAC_LO_MASK = 0x3F00; /* D13:D8 - Low 6 bits of fractional divider */
+
+/* REG 4: Synthesizer Fractional High */
+constexpr uint16_t REG4_SYN_FRAC_HI_MASK = 0x3FFF; /* D13:D0 - High 14 bits of fractional divider */
+
+/* REG 5: Reference Divider and Lock Detect */
+constexpr uint16_t REG5_SYN_REF_DIV_SHIFT = 2;
+constexpr uint16_t REG5_SYN_REF_DIV_1 = (0 << REG5_SYN_REF_DIV_SHIFT);
+constexpr uint16_t REG5_SYN_REF_DIV_2 = (1 << REG5_SYN_REF_DIV_SHIFT);
+
+/* REG 6: Calibration Mode */
+constexpr uint16_t REG6_RX_CAL_MODE_EN_SHIFT = 0;
+constexpr uint16_t REG6_RX_CAL_MODE_EN = (1 << REG6_RX_CAL_MODE_EN_SHIFT);
+constexpr uint16_t REG6_TX_CAL_MODE_EN_SHIFT = 1;
+constexpr uint16_t REG6_TX_CAL_MODE_EN = (1 << REG6_TX_CAL_MODE_EN_SHIFT);
+constexpr uint16_t REG6_TX_POWER_DETECT_EN_SHIFT = 6;
+constexpr uint16_t REG6_TX_POWER_DETECT_EN = (1 << REG6_TX_POWER_DETECT_EN_SHIFT);
+
+/* REG 7: LPF Fine Adjustment and RX HPF */
+constexpr uint16_t REG7_RX_LPF_FINE_SHIFT = 0;
+constexpr uint16_t REG7_RX_LPF_FINE_MASK = 0x0007; /* D2:D0 */
+constexpr uint16_t REG7_RX_LPF_FINE_90 = 0;
+constexpr uint16_t REG7_RX_LPF_FINE_95 = 1;
+constexpr uint16_t REG7_RX_LPF_FINE_100 = 2;
+constexpr uint16_t REG7_RX_LPF_FINE_105 = 3;
+constexpr uint16_t REG7_RX_LPF_FINE_110 = 4;
+
+constexpr uint16_t REG7_TX_LPF_FINE_SHIFT = 3;
+constexpr uint16_t REG7_TX_LPF_FINE_MASK = 0x0038; /* D5:D3 */
+constexpr uint16_t REG7_TX_LPF_FINE_90 = (0 << REG7_TX_LPF_FINE_SHIFT);
+constexpr uint16_t REG7_TX_LPF_FINE_95 = (1 << REG7_TX_LPF_FINE_SHIFT);
+constexpr uint16_t REG7_TX_LPF_FINE_100 = (2 << REG7_TX_LPF_FINE_SHIFT);
+constexpr uint16_t REG7_TX_LPF_FINE_105 = (3 << REG7_TX_LPF_FINE_SHIFT);
+constexpr uint16_t REG7_TX_LPF_FINE_110 = (4 << REG7_TX_LPF_FINE_SHIFT);
+constexpr uint16_t REG7_TX_LPF_FINE_115 = (5 << REG7_TX_LPF_FINE_SHIFT);
+
+constexpr uint16_t REG7_RX_HPF_SEL_SHIFT = 12;
+constexpr uint16_t REG7_RX_HPF_SEL_MASK = 0x3000; /* D13:D12 */
+constexpr uint16_t REG7_RX_HPF_100HZ = (0 << REG7_RX_HPF_SEL_SHIFT);
+constexpr uint16_t REG7_RX_HPF_4KHZ = (1 << REG7_RX_HPF_SEL_SHIFT);
+constexpr uint16_t REG7_RX_HPF_30KHZ = (2 << REG7_RX_HPF_SEL_SHIFT);
+
+/* REG 8: LPF Coarse, RSSI MUX, and RX VGA SPI Enable */
+constexpr uint16_t REG8_LPF_COARSE_SHIFT = 0;
+constexpr uint16_t REG8_LPF_COARSE_MASK = 0x0003; /* D1:D0 */
+/* RX and TX share the same coarse LPF setting bits */
+constexpr uint16_t REG8_RX_LPF_7_5M = 0;
+constexpr uint16_t REG8_RX_LPF_8_5M = 1;
+constexpr uint16_t REG8_RX_LPF_15M = 2;
+constexpr uint16_t REG8_RX_LPF_18M = 3;
+constexpr uint16_t REG8_TX_LPF_8M = 0;
+constexpr uint16_t REG8_TX_LPF_11M = 1;
+constexpr uint16_t REG8_TX_LPF_16_5M = 2;
+constexpr uint16_t REG8_TX_LPF_22_5M = 3;
+
+constexpr uint16_t REG8_RSSI_MUX_SHIFT = 8;
+constexpr uint16_t REG8_RSSI_MUX_MASK = 0x0300; /* D9:D8 */
+constexpr uint16_t REG8_RSSI_MUX_RSSI = (0 << REG8_RSSI_MUX_SHIFT);
+constexpr uint16_t REG8_RSSI_MUX_TEMP = (1 << REG8_RSSI_MUX_SHIFT);
+constexpr uint16_t REG8_RSSI_MUX_TX_POWER = (2 << REG8_RSSI_MUX_SHIFT);
+
+constexpr uint16_t REG8_RXVGA_GAIN_SPI_EN_SHIFT = 12;
+constexpr uint16_t REG8_RXVGA_GAIN_SPI_EN = (1 << REG8_RXVGA_GAIN_SPI_EN_SHIFT);
+
+/* REG 9: TX VGA SPI Enable */
+constexpr uint16_t REG9_TXVGA_GAIN_SPI_EN_SHIFT = 10;
+constexpr uint16_t REG9_TXVGA_GAIN_SPI_EN = (1 << REG9_TXVGA_GAIN_SPI_EN_SHIFT);
+
+/* REG 11: RX Gain */
+constexpr uint16_t REG11_RXVGA_GAIN_SHIFT = 0;
+constexpr uint16_t REG11_RXVGA_GAIN_MASK = 0x001F; /* D4:D0 - 5 bits */
+
+constexpr uint16_t REG11_LNA_GAIN_SHIFT = 5;
+constexpr uint16_t REG11_LNA_GAIN_MASK = 0x0060;                     /* D6:D5 - 2 bits */
+constexpr uint16_t REG11_LNA_GAIN_M33 = (0 << REG11_LNA_GAIN_SHIFT); /* -33 dB from max (min) */
+constexpr uint16_t REG11_LNA_GAIN_M16 = (2 << REG11_LNA_GAIN_SHIFT); /* -16 dB from max */
+constexpr uint16_t REG11_LNA_GAIN_MAX = (3 << REG11_LNA_GAIN_SHIFT); /* Maximum LNA gain */
+
+/* REG 12: TX VGA Gain */
+constexpr uint16_t REG12_TXVGA_GAIN_SHIFT = 0;
+constexpr uint16_t REG12_TXVGA_GAIN_MASK = 0x003F; /* D5:D0 - 6 bits */
+
+/* REG 14: Clock Output */
+constexpr uint16_t REG14_CLKOUT_PIN_EN_SHIFT = 9;
+constexpr uint16_t REG14_CLKOUT_PIN_EN = (1 << REG14_CLKOUT_PIN_EN_SHIFT);
+
+/* REG 15: RX IQ Common Mode */
+constexpr uint16_t REG15_RXIQ_VCM_SHIFT = 10;
+constexpr uint16_t REG15_RXIQ_VCM_MASK = 0x0C00;                      /* D11:D10 - 2 bits */
+constexpr uint16_t REG15_RXIQ_VCM_1_1 = (0 << REG15_RXIQ_VCM_SHIFT);  /* 1.1V */
+constexpr uint16_t REG15_RXIQ_VCM_1_2 = (1 << REG15_RXIQ_VCM_SHIFT);  /* 1.2V */
+constexpr uint16_t REG15_RXIQ_VCM_1_3 = (2 << REG15_RXIQ_VCM_SHIFT);  /* 1.3V */
+constexpr uint16_t REG15_RXIQ_VCM_1_45 = (3 << REG15_RXIQ_VCM_SHIFT); /* 1.45V */
+
+class MAX2831 : public MAX283x {
+   public:
+    constexpr MAX2831(
+        spi::arbiter::Target& target)
+        : _target(target) {
+    }
+
+    void init() override;
+    void set_mode(const Mode mode) override;
+
+    void set_tx_vga_gain(const int_fast8_t db) override;
+    void set_lna_gain(const int_fast8_t db) override;
+    void set_vga_gain(const int_fast8_t db) override;
+    void set_lpf_rf_bandwidth_rx(const uint32_t bandwidth_minimum) override;
+    void set_lpf_rf_bandwidth_tx(const uint32_t bandwidth_minimum) override;
+
+    bool set_frequency(const rf::Frequency lo_frequency) override;
+
+    void set_rx_LO_iq_phase_calibration(const size_t v) override;
+    void set_tx_LO_iq_phase_calibration(const size_t v) override;
+
+    void set_rx_buff_vcm(const size_t v) override;
+
+    int8_t temp_sense() override;
+
+    reg_t read(const address_t reg_num) override;
+    void write(const address_t reg_num, const reg_t value) override;
+
+   private:
+    spi::arbiter::Target& _target;
+    Mode _mode{Mode::Standby};
+    std::array<uint16_t, reg_count> _regs{default_regs};
+    uint16_t _regs_dirty{0xFFFF}; /* Track which registers need to be written */
+    uint32_t _desired_lpf_bw{0};  /* Desired LPF bandwidth in Hz */
+
+    void write_reg(const uint8_t reg, const uint16_t value);
+    void set_reg_field(const uint8_t reg, const uint16_t mask, const uint16_t value);
+    uint16_t get_reg_field(const uint8_t reg, const uint16_t mask, const uint8_t shift);
+    void mark_dirty(const uint8_t reg);
+    void mark_clean(const uint8_t reg);
+    void flush_reg(const uint8_t reg);
+    void flush_dirty();
+    uint32_t set_lpf_bandwidth_internal(const uint32_t bandwidth_hz);
+};
+
+}  // namespace max2831
+
+#endif /*__MAX2831_H__*/

firmware/application/hw/rffc507x.cpp

@@ -31,6 +31,24 @@ using namespace hackrf::one;
 
 #include "hal.h"
 
+#ifdef PRALINE
+// Global debug tracking - visible to other files
+struct rffc507x_debug_t {
+    uint32_t requested_freq_mhz;
+    uint32_t calculated_vco_mhz;
+    uint32_t expected_n;
+    uint8_t expected_lodiv;
+    uint8_t expected_presc;
+    bool was_called;
+    uint32_t calc_lo_freq_mhz;     // Input to calculate()
+    uint32_t calc_vco_inside_mhz;  // VCO calculated inside calculate()
+    uint8_t calc_lodiv_log2;       // LO divider log2
+    uint8_t calc_presc_log2;       // Prescaler log2
+    uint64_t calc_n_q24;           // N in Q24 format before shift
+};
+rffc507x_debug_t rffc507x_debug_info = {0, 0, 0, 0, 0, false, 0, 0, 0, 0, 0};
+#endif
+
 namespace rffc507x {
 
 /* Empirical tests indicate no minimum reset pulse width, but the speed
@@ -96,9 +114,31 @@ constexpr size_t divider_min = 1U << divider_log2_min;
 constexpr size_t divider_max = 1U << divider_log2_max;
 
 constexpr size_t divider_log2(const rf::Frequency vco_frequency) {
+#ifdef PRALINE
+    // PRALINE FIX: Avoid N register overflow (9-bit max = 511)
+    // With 40 MHz reference:
+    // - For VCO=5400 MHz, presc=÷2: N = (5400×2)/40 = 270 ✓
+    // - For VCO=5400 MHz, presc=÷4: N = (5400×4)/40 = 540 ✗ OVERFLOW!
+    //
+    // Maximum safe VCO for ÷4 prescaler:
+    // N_max = 511, so VCO_max = (511 × 40) / 4 = 5110 MHz
+    //
+    // Use ÷4 only if VCO < 5110 MHz AND VCO > 3200 MHz
+    // Use ÷2 for VCO >= 5110 MHz to avoid overflow
+
+    constexpr rf::Frequency overflow_threshold = 5110000000ULL;  // Max VCO for ÷4
+    constexpr rf::Frequency min_presc4_freq = 3200000000ULL;     // Min VCO for ÷4
+
+    if ((vco_frequency > min_presc4_freq) && (vco_frequency < overflow_threshold)) {
+        return divider_log2_max;  // ÷4 prescaler
+    } else {
+        return divider_log2_min;  // ÷2 prescaler
+    }
+#else
     return (vco_frequency > (prescaler::divider_min * prescaler::max_frequency))
                ? prescaler::divider_log2_max
                : prescaler::divider_log2_min;
+#endif
 }
 
 } /* namespace prescaler */
@@ -121,9 +161,22 @@ struct SynthConfig {
 
         const size_t prescaler_divider_log2 = prescaler::divider_log2(vco_frequency);
 
+#ifndef PRALINE
         const uint64_t prescaled_lo_q24 = vco_frequency << (24 - prescaler_divider_log2);
+#else
+        const uint64_t prescaled_lo_q24 = vco_frequency << (24 + prescaler_divider_log2);
+#endif
         const uint64_t n_divider_q24 = prescaled_lo_q24 / reference_frequency;
 
+#ifdef PRALINE
+        // DEBUG: Track everything
+        rffc507x_debug_info.calc_lo_freq_mhz = lo_frequency / 1000000;
+        rffc507x_debug_info.calc_vco_inside_mhz = vco_frequency / 1000000;
+        rffc507x_debug_info.calc_lodiv_log2 = lo_divider_log2;
+        rffc507x_debug_info.calc_presc_log2 = prescaler_divider_log2;
+        rffc507x_debug_info.calc_n_q24 = n_divider_q24;
+#endif
+
         return {
             lo_divider_log2,
             prescaler_divider_log2,
@@ -233,6 +286,20 @@ void RFFC507x::set_mixer_current(const uint8_t value) {
 void RFFC507x::set_frequency(const rf::Frequency lo_frequency) {
     const SynthConfig synth_config = SynthConfig::calculate(lo_frequency);
 
+#ifdef PRALINE
+    // Calculate VCO frequency from LO frequency and divider
+    const size_t lo_divider = 1U << synth_config.lo_divider_log2;  // 2^lodiv_log2
+    const rf::Frequency vco_freq = lo_frequency * lo_divider;
+
+    // Track what we calculated
+    rffc507x_debug_info.requested_freq_mhz = lo_frequency / 1000000;
+    rffc507x_debug_info.calculated_vco_mhz = vco_freq / 1000000;
+    rffc507x_debug_info.expected_n = synth_config.n_divider_q24 >> 24;
+    rffc507x_debug_info.expected_lodiv = synth_config.lo_divider_log2;
+    rffc507x_debug_info.expected_presc = synth_config.prescaler_divider_log2;
+    rffc507x_debug_info.was_called = true;
+#endif
+
     /* Boost charge pump leakage if VCO frequency > 3.2GHz, indicated by
      * prescaler divider set to 4 (log2=2) instead of 2 (log2=1).
      */

firmware/application/hw/si5351.cpp

@@ -57,7 +57,15 @@ void Si5351::reset() {
     write_register(Register::CrystalInternalLoadCapacitance, 0b11010010);
     write_register(Register::FanoutEnable, 0x00);
 
+#ifndef PRALINE
     reset_plls();
+#endif
+    // NOTE: Do NOT call reset_plls() here!
+    // Multisynth registers are not yet configured at this point.
+    // Resetting PLLs with power-on default multisynth values (divider=6)
+    // causes Si5351 to output wrong frequencies (66.666 MHz instead of 8 MHz).
+    // The PLL reset should happen in init_clock_generator() AFTER multisynths
+    // are properly configured. This matches HackRF reference firmware.
 }
 
 Si5351::regvalue_t Si5351::read_register(const uint8_t reg) {
@@ -93,7 +101,16 @@ void Si5351::set_ms_frequency(
         .r_div = r_div,
     };
     const auto regs = ms.reg(ms_number);
+
+#ifdef PRALINE
+    /* PRALINE: Use single-byte writes - multi-byte I2C writes seem to fail */
+    const uint8_t base_reg = regs[0];
+    for (size_t i = 1; i < regs.size(); i++) {
+        write_register(base_reg + i - 1, regs[i]);
+    }
+#else
     write(regs);
+#endif
 }
 
 } /* namespace si5351 */

firmware/application/hw/si5351.hpp

@@ -361,8 +361,16 @@ class Si5351 {
     }
 
     void wait_for_device_ready() {
-        while (device_status() & 0x80)
-            ;
+#ifndef PRALINE
+        while (device_status() & 0x80);
+#else
+        // Add timeout to prevent infinite loop if I2C communication fails
+        // (e.g., on PRALINE hardware with different configuration)
+        uint32_t timeout = 100000;
+        while ((device_status() & 0x80) && (timeout > 0)) {
+            timeout--;
+        }
+#endif
     }
 
     bool plla_loss_of_signal() {
@@ -378,10 +386,15 @@ class Si5351 {
     }
 
     void reset_plls() {
+#ifndef PRALINE
         // Datasheet recommends value 0xac, though the low nibble bits are not defined in AN619.
         write_register(Register::PLLReset, 0xac);
+#else
+        // Reset both PLLA and PLLB. Use 0xA0 to match HackRF reference firmware.
+        // The low nibble bits are reserved/undefined in AN619.
+        write_register(Register::PLLReset, 0xa0);
+#endif
     }
-
     regvalue_t read_register(const uint8_t reg);
 
     template <size_t N>
@@ -398,6 +411,18 @@ class Si5351 {
         write(config.reg(ms_number));
     }
 
+#ifdef PRALINE
+    /* Write multisynth config using single-byte writes for debugging */
+    void write_ms_single_byte(const size_t ms_number, const MultisynthFractional& config) {
+        const auto regs = config.reg(ms_number);
+        // regs[0] is the base register address, regs[1-8] are the data bytes
+        const uint8_t base_reg = regs[0];
+        for (size_t i = 1; i < regs.size(); i++) {
+            write_register(base_reg + i - 1, regs[i]);
+        }
+    }
+#endif
+
     void set_ms_frequency(
         const size_t ms_number,
         const uint32_t frequency,
@@ -481,7 +506,6 @@ class Si5351 {
                                                    }});
     }
 };
-
 }  // namespace si5351
 
 #endif /*__SI5351_H__*/

firmware/application/hw/spi_arbiter.hpp

@@ -46,6 +46,14 @@ class Arbiter {
         _bus.transfer(data, count);
     }
 
+#ifdef PRALINE
+    /* Invalidate cached config - forces reconfiguration on next transfer.
+     * Call this after directly manipulating SSP registers (e.g., FPGA access). */
+    void invalidate() {
+        _config = nullptr;
+    }
+#endif
+
    private:
     SPI& _bus;
     const SPIConfig* _config;

firmware/application/irq_controls.cpp

@@ -194,8 +194,12 @@ void timer0_callback(GPTDriver* const) {
     if (encoder_update(switches_raw) || encoder_read())
         event_mask |= EVT_MASK_ENCODER;
 
-    /* Signal event loop */
+        /* Signal event loop */
+#ifdef PRALINE
+    if (event_mask && thread_controls_event) {
+#else
     if (event_mask) {
+#endif
         chSysLockFromIsr();
         chEvtSignalI(thread_controls_event, event_mask);
         chSysUnlockFromIsr();
@@ -227,8 +231,13 @@ void controls_init() {
     gptStart(&GPTD1, &timer0_config);
     gptStartContinuous(&GPTD1, timer0_match_count);
 
+#ifdef PRALINE
     // Enable repeat for directional switches only
     for (auto i = Switch::Right; i <= Switch::Up; incr(i))
+#else
+    // Enable repeat for directional and Select switches only
+    for (auto i = Switch::Right; i <= Switch::Sel; incr(i))
+#endif
         switch_debounce[toUType(i)].enable_repeat();
 }
 
@@ -250,6 +259,22 @@ SwitchesState get_switches_state() {
     return result;
 }
 
+/* Gets the repeat enabled state for all the switches. */
+SwitchesState get_switches_repeat_config() {
+    SwitchesState result;
+
+    for (size_t i = 0; i < result.size(); i++)
+        result[i] = switch_debounce[i].get_repeat_enabled();
+
+    return result;
+}
+
+/* Configures which switches support repeat.*/
+void set_switches_repeat_config(SwitchesState switch_config) {
+    for (size_t i = 0; i < switch_config.size(); i++)
+        switch_debounce[i].set_enable_repeat(switch_config[i]);
+}
+
 /* Gets the long press enabled state for all the switches. */
 SwitchesState get_switches_long_press_config() {
     SwitchesState result;

firmware/application/irq_controls.hpp

@@ -48,6 +48,8 @@ uint8_t swizzled_switches();
 SwitchesState get_switches_state();
 EncoderPosition get_encoder_position();
 touch::Frame get_touch_frame();
+SwitchesState get_switches_repeat_config();
+void set_switches_repeat_config(SwitchesState switch_config);
 
 SwitchesState get_switches_long_press_config();
 void set_switches_long_press_config(SwitchesState switch_config);

firmware/application/irq_lcd_frame.cpp

@@ -52,10 +52,17 @@ extern "C" {
 
 CH_IRQ_HANDLER(PIN_INT4_IRQHandler) {
     CH_IRQ_PROLOGUE();
-
+#ifdef PRALINE
+    if (thread_lcd_frame_event) {
+        chSysLockFromIsr();
+        chEvtSignalI(thread_lcd_frame_event, EVT_MASK_LCD_FRAME_SYNC);
+        chSysUnlockFromIsr();
+    }
+#else
     chSysLockFromIsr();
     chEvtSignalI(thread_lcd_frame_event, EVT_MASK_LCD_FRAME_SYNC);
     chSysUnlockFromIsr();
+#endif
 
     LPC_GPIO_INT->IST = (1U << 4);
 

firmware/application/irq_rtc.cpp

@@ -40,10 +40,17 @@ extern "C" {
 
 CH_IRQ_HANDLER(RTC_IRQHandler) {
     CH_IRQ_PROLOGUE();
-
+#ifdef PRALINE
+    if (thread_rtc_event) {
+        chSysLockFromIsr();
+        chEvtSignalI(thread_rtc_event, EVT_MASK_RTC_TICK);
+        chSysUnlockFromIsr();
+    }
+#else
     chSysLockFromIsr();
     chEvtSignalI(thread_rtc_event, EVT_MASK_RTC_TICK);
     chSysUnlockFromIsr();
+#endif
 
     rtc::interrupt::clear_all();