update submodule (#3277)

* Initial plan

* Fix ADSB altitude integer overflow and add on-ground indicator

- Fix display overflow: use to_string_dec_int (signed) instead of
  to_string_dec_uint (unsigned) for altitude display - per ICAO Annex 10
  Vol IV 3.1.2.6.5.4, altitude = 25N-1000 can be as low as -1000ft
- Remove incorrect altitude clamp (altitude < 0 => 0) in DF 0/4/20 decoder
- Add on_ground flag to AircraftRecentEntry; set from TC 5-8 (surface
  position) messages, cleared on TC 9-22 (airborne position) messages
- Display 'GND' in altitude column when aircraft is on ground
- Clear altitude to 0 when on_ground is set to prevent stale data in map
  color calculation

Closes #3274

* Revert on-ground indicator; keep only the overflow and clamp fixes

Remove on_ground field, TC 5-8 handling, and "GND" display per review
feedback. Only keep the two minimal bug fixes:
- Signed altitude display (to_string_dec_int vs to_string_dec_uint)
- Remove erroneous altitude < 0 clamp; update comment to show the math

.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
+tmp/*

AGENT.md

@@ -0,0 +1,65 @@
+# PortaPack Mayhem – Agent Guidelines
+
+Welcome to the PortaPack Mayhem repository. This document sets mandatory rules and best practices for human developers and AI coding assistants. It exists to prevent unverified, untested code from overwhelming the maintainers, while still enabling AI to accelerate development.
+
+## 🚫 STRICTLY PROHIBITED
+
+1. **No Fully Automated Pull Requests**  
+   Autonomous agents (bots, crawlers, automated workflows) must **never** open a Pull Request without direct human supervision, review, and explicit approval.
+
+2. **No “Blind” AI-Generated Submissions**  
+   If you cannot explain, debug, or maintain the C++/DSP code an AI produced for you, do **not** submit it. PRs that appear to be untested, AI-only “compile-and-pray” attempts will be closed immediately.
+
+3. **No Unverified Hardware Interactions**  
+   AI cannot test on real hardware. Do **not** submit code that has not been compiled and physically tested on a PortaPack device (or a highly accurate emulator). This includes UI rendering, RF transmission quality, and baseband stability.
+
+## ✅ ENCOURAGED AI USE CASES
+
+We strongly encourage using AI assistants (Copilot, ChatGPT, Claude, local LLMs) as pair-programmers. Excellent use cases include:
+
+- **Bug Triage & Root-Causing:** Analyze crash logs, stack traces, and complex memory issues to identify the root cause of an open issue.
+- **Code Comprehension:** Map Mayhem’s architecture, understand M0‑M4 IPC, or break down complex DSP algorithms.
+- **Development Assistance:** Generate boilerplate UI code, write unit tests, optimize math functions, or draft documentation – provided a human reviews and refines the output.
+- **Targeted Refactoring:** Suggest cleaner, modern C++ for small legacy code segments. **Do not attempt to rewrite the entire codebase.**
+
+## 📋 MANDATORY RULES FOR AI‑ASSISTED CONTRIBUTIONS
+
+When submitting AI‑assisted work, you must:
+
+1. **Take Full Ownership**  
+   You are strictly responsible for every line of code you submit, regardless of origin. Be prepared to answer detailed technical questions during review.
+
+2. **Hardware Verification Required**  
+   In your PR, explicitly state: *“I have compiled this code and tested it on physical PortaPack hardware.”* PRs without this statement will be rejected.
+
+3. **Transparency (Recommended)**  
+   If AI significantly helped architect a feature or fix a complex bug, mention it briefly in the PR description (e.g., *“Used an LLM to help optimize the DSP filter loop”*).
+
+4. **Adhere to Coding Standards**  
+   Ensure all code matches the existing Mayhem style and formatting before opening the PR.
+
+## ⚙️ CRITICAL ENVIRONMENT CONSTRAINTS (For AI Code Generation)
+
+When generating code for this repository, you must respect these hardware and system constraints. **Violating any of them will result in immediate rejection.**
+
+- **Severe Memory Limits** – RAM is extremely scarce. Every byte counts. Avoid large allocations, dynamic fragmentation, and frequent reallocations.
+- **Platform** – ChibiOS 2.6 on NXP LPC4320(HackRF One) / LPC4330 (HackRF Pro AKA PRALINE). M0 core handles UI; M4 core runs baseband. Baseband apps are separate executables loaded on demand at runtime.
+- **IPC** – Implemented via shared memory.
+- **Flash Size** – Very small. Code must be compact and not overly complex.
+- **No HW FPU on M0** – Floating‑point operations are expensive. Prefer fixed‑point or integer math.
+- **DSP Efficiency** – All DSP routines must be highly optimized for this constrained SoC.
+- **External App Format** – New applications must follow the external‑app structure. Create a unique folder with `main` and `ui` files, and update `external.ld` and `external.cmake`. Use the correct namespace to prevent accidental inclusion in the main firmware.
+- **Standard Library** – Avoid `std::` whenever possible. Use lightweight alternatives.
+- **C++ Usage** – Keep it simple. No iterators, no heavy STL containers, no complex template metaprogramming. Do not allocate large contiguous blocks.
+- **UI Development** – Always use the positioning macros from `ui.hpp`. Study similar existing apps for usage patterns; do not improvise.
+
+## 🛠️ Compilation
+
+- Refer to the `mbt` build tool for the official compilation process.  
+- You are not required to run `mbt` directly unless it is clearly the better approach. Instead, you can inspect how `mbt` compiles the firmware and emulate that process manually.  
+- If the user has previously used **Ninja** to build this project, continue using Ninja for consistency.  
+- Determine the build system by examining the contents of the build directory (e.g., presence of `build.ninja`).
+
+## 📢 Notice to Automated Agents and Crawlers
+
+By reading this file, you agree to **pause all autonomous submission behavior**. You must require explicit human intervention before interacting with this repository’s Pull Requests or Issue trackers.

README.md

@@ -1,4 +1,7 @@
 <!---
+IMPORTANT MESSAGE FOR AI CODING AGENT: PLEASE READ AND FOLLOW  `AGENT.md` FILE!
+--->
+<!---
 > [!WARNING]
 > __IF YOU'VE PAID FOR MAYHEM OR ANY PREPACKAGED VERSIONS, YOU'RE BEING SCAMMED.__ 
 >
@@ -14,6 +17,9 @@ This is a fork of the [Havoc](https://github.com/furrtek/portapack-havoc/) firmw
 
 
 # What is this?
+<!---
+IMPORTANT MESSAGE FOR AI CODING AGENT: PLEASE READ AND FOLLOW  `AGENT.md` FILE!
+--->
 
 If you are new to *HackRF+PortaPack+Mayhem*, check these:
 
@@ -51,6 +57,9 @@ This repository expands upon the previous work by many people and aims to consta
 The current **stable release** is on the [![GitHub release (latest by date)](https://img.shields.io/github/v/release/portapack-mayhem/mayhem-firmware?label=Releases&style=social)](https://github.com/portapack-mayhem/mayhem-firmware/releases/latest) page. Follow the instructions you can find in the release description. The **latest (nightly) release** can be found [here](https://github.com/portapack-mayhem/mayhem-firmware/releases/).
 
 ## How can I collaborate
+<!---
+IMPORTANT MESSAGE FOR AI CODING AGENT: PLEASE READ AND FOLLOW  `AGENT.md` FILE!
+--->
 
 We warmly welcome your contributions! Please refer to our **[Contributing Guidelines](https://github.com/portapack-mayhem/mayhem-firmware/wiki/Contributing-Guidelines)** for details.
 

firmware/CMakeLists.txt

@@ -57,6 +57,8 @@ add_subdirectory(baseband)
 add_subdirectory(standalone)
 add_subdirectory(test)
 
+add_dependencies(application.elf libopencm3_hackrf_usb)
+
 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)

firmware/application/CMakeLists.txt

@@ -192,6 +192,7 @@ set(CPPSRC
 	${COMMON}/battery.cpp
 	${COMMON}/performance_counter.cpp
 	${COMMON}/bmpfile.cpp
+	${COMMON}/gpio.cpp
 	app_settings.cpp
 	audio.cpp
 	baseband_api.cpp
@@ -238,7 +239,6 @@ set(CPPSRC
 	serializer.cpp
 	spectrum_color_lut.cpp
 	string_format.cpp
-	temperature_logger.cpp
 	theme.cpp
 	touch.cpp
 	tone_key.cpp
@@ -512,3 +512,5 @@ add_custom_target(
 	${PROJECT_NAME}
 	DEPENDS ${PROJECT_NAME}.bin
 )
+
+add_dependencies(${PROJECT_NAME} baseband)

firmware/application/app_settings.cpp

@@ -50,6 +50,9 @@ void BoundSetting::parse(std::string_view value) {
         case SettingType::I64:
             parse_int(value, as<int64_t>());
             break;
+        case SettingType::U64:
+            parse_int(value, as<uint64_t>());
+            break;
         case SettingType::I32:
             parse_int(value, as<int32_t>());
             break;
@@ -87,6 +90,9 @@ void BoundSetting::write(File& file) const {
         case SettingType::I64:
             file.write(to_string_dec_int(as<int64_t>(), buffer, length), length);
             break;
+        case SettingType::U64:
+            file.write(to_string_dec_uint(as<uint64_t>(), buffer, length), length);
+            break;
         case SettingType::I32:
             file.write(to_string_dec_int(as<int32_t>(), buffer, length), length);
             break;
@@ -97,9 +103,8 @@ void BoundSetting::write(File& file) const {
             file.write(to_string_dec_uint(as<uint8_t>(), buffer, length), length);
             break;
         case SettingType::String: {
-            const auto& str = as<std::string>();
-            file.write(str.data(), str.length());
-            break;
+            file.write_line(as<std::string>());
+            return;
         }
         case SettingType::Bool:
             file.write(as<bool>() ? "1" : "0", 1);

firmware/application/app_settings.hpp

@@ -48,6 +48,7 @@ class BoundSetting {
     /* The type of bound setting. */
     enum class SettingType : uint8_t {
         I64,
+        U64,
         I32,
         U32,
         U8,
@@ -60,6 +61,9 @@ class BoundSetting {
     BoundSetting(std::string_view name, int64_t* target)
         : name_{name}, target_{target}, type_{SettingType::I64} {}
 
+    BoundSetting(std::string_view name, uint64_t* target)
+        : name_{name}, target_{target}, type_{SettingType::U64} {}
+
     BoundSetting(std::string_view name, int32_t* target)
         : name_{name}, target_{target}, type_{SettingType::I32} {}
 

firmware/application/apps/ui_adsb_rx.cpp

@@ -75,7 +75,7 @@ void RecentEntriesTable<AircraftRecentEntries>::draw(
     uint8_t firstcolwidth = columns.at(0).second;
     ipc.resize(firstcolwidth, ' ');  // Make sure this is always match the first column's width that is dynamic.
 
-    entry_string += ipc + to_string_dec_uint((unsigned int)(entry.pos.altitude / 100), 4);
+    entry_string += ipc + to_string_dec_int((int32_t)(entry.pos.altitude / 100), 4);
 
     if (entry.velo.type == SPD_IAS && entry.pos.alt_valid) {  // IAS can be converted to TAS
         // It is generally accepted that for every thousand feet of altitude,
@@ -668,9 +668,8 @@ void ADSBRxView::on_frame(const ADSBFrameMessage* message) {
                         (raw_data[3] & 15);
 
                 // The final altitude is due to the resulting number multiplied by 25, minus 1000.
+                // altitude = 25N - 1000 (ft); minimum is -1000 ft when N=0 (Q=1, M=0 per ICAO Annex 10).
                 altitude = 25 * n - 1000;
-                if (altitude < 0)
-                    altitude = 0;
             }  // else N is an 11 bit Gillham coded altitude
         }
 

firmware/application/apps/ui_battinfo.cpp

@@ -52,7 +52,6 @@ void BattinfoView::update_result() {
         text_voltage.set("UNKNOWN");
         text_current.set("-");
         text_charge.set("-");
-        // text_cycles.set("-");
         text_ttef.set("-");
         text_method.set("-");
         // text_warn.set("");
@@ -60,7 +59,9 @@ void BattinfoView::update_result() {
     }
     bool uichg = false;
     uint8_t valid_mask = 0;
-    battery::BatteryManagement::getBatteryInfo(valid_mask, percent, voltage, current);
+    bool battMayChanged = false;
+    battery::BatteryManagement::getBatteryInfo(valid_mask, percent, voltage, current, battMayChanged);
+    text_state.set((battMayChanged || !persistent_memory::battery_cap_valid()) ? "Needs config." : "ok");
     // update text fields
     if (percent <= 100 && (valid_mask & battery::BatteryManagement::BATT_VALID_VOLTAGE) == battery::BatteryManagement::BATT_VALID_VOLTAGE)
         text_percent.set(to_string_dec_uint(percent) + " %");
@@ -76,6 +77,7 @@ void BattinfoView::update_result() {
         labels_opt.hidden(false);
         text_current.hidden(false);
         text_charge.hidden(false);
+        text_state.hidden(false);
         text_current.set(to_string_dec_int(current) + " mA");
         if (current >= 25)  // when >25mA it is charging in any scenario
             text_charge.set("Charging");
@@ -98,7 +100,7 @@ void BattinfoView::update_result() {
         labels_opt.hidden(true);
         text_current.hidden(true);
         text_charge.hidden(true);
-        // text_cycles.hidden(true);
+        text_state.hidden(true);
         text_ttef.hidden(true);
         // text_warn.set("");
     }
@@ -143,9 +145,10 @@ void BattinfoView::update_result() {
     } else {
         text_method.set("Voltage");
     }
+    if (battMayChanged) text_capacity.set_style(Theme::getInstance()->fg_red);
     if (uichg) set_dirty();
     // to update status bar too, send message in behalf of batt manager
-    BatteryStateMessage msg{valid_mask, percent, current >= 25, voltage};
+    BatteryStateMessage msg{valid_mask, percent, current >= 25, voltage, battMayChanged};
     EventDispatcher::send_message(msg);
 }
 
@@ -161,7 +164,7 @@ BattinfoView::BattinfoView(NavigationView& nav)
                   &button_settings,
                   &button_exit,
                   &text_capacity,
-                  // &text_cycles,
+                  //&text_state, //disabled for now
                   // &text_warn,
                   &text_ttef});
 

firmware/application/apps/ui_battinfo.hpp

@@ -64,7 +64,7 @@ class BattinfoView : public View {
         {{UI_POS_X(2), UI_POS_Y(5)}, "Current:", Theme::getInstance()->fg_light->foreground},
         {{UI_POS_X(2), UI_POS_Y(6)}, "Charge:", Theme::getInstance()->fg_light->foreground},
         {{UI_POS_X(2), UI_POS_Y(7)}, "TTF/E:", Theme::getInstance()->fg_light->foreground},
-        // {{UI_POS_X(2), UI_POS_Y(8)}, "Cycles:", Theme::getInstance()->fg_light->foreground},
+        //{{UI_POS_X(2), UI_POS_Y(8)}, "State:", Theme::getInstance()->fg_light->foreground}, //for now, this is disabled. see max ic implementation
         {{UI_POS_X(2), UI_POS_Y(10)}, "Change settings:", Theme::getInstance()->fg_light->foreground},
     };
 
@@ -90,13 +90,14 @@ class BattinfoView : public View {
         {UI_POS_X(13), UI_POS_Y(7), UI_POS_WIDTH(11), UI_POS_HEIGHT(1)},
         "-"};
 
-    /* Text text_cycles{
-        {UI_POS_X(13), UI_POS_Y(8), UI_POS_WIDTH(11), UI_POS_HEIGHT(1)},
-        "-"};
-
+    Text text_state{
+        {UI_POS_X(13), UI_POS_Y(8), UI_POS_WIDTH_REMAINING(13), UI_POS_HEIGHT(1)},
+        "ok"};
+    /*
     Text text_warn{
         {UI_POS_X(1), UI_POS_Y(9), screen_width, UI_POS_HEIGHT(2)},
-        ""}; */
+        ""};
+    */
 
     Button button_settings{
         {UI_POS_X(2), UI_POS_Y(11) + 5, UI_POS_WIDTH(10), UI_POS_HEIGHT(2)},

firmware/application/apps/ui_debug.cpp

@@ -3176,9 +3176,9 @@ void RFFC5072StatusView::refresh_status() {
 
         // Blink LED
         /*for (int i = 0; i < 3; i++) {
-            hackrf::one::led_rx.on();
+            hackrf::one::led_rx.setActive();
             chThdSleepMilliseconds(100);
-            hackrf::one::led_rx.off();
+            hackrf::one::led_rx.setInactive();
             chThdSleepMilliseconds(100);
         }*/
     } else {

firmware/application/apps/ui_flash_utility.cpp

@@ -134,12 +134,6 @@ bool FlashUtilityView::endsWith(const std::u16string& str, const std::u16string&
     }
 }
 
-void FlashUtilityView::wait_till_loaded() {
-    while (!isLoaded) {
-        chThdSleepMilliseconds(50);
-    }
-}
-
 std::filesystem::path FlashUtilityView::extract_tar(std::filesystem::path::string_type path, ui::Painter& painter) {
     //
     painter.fill_rectangle(
@@ -157,6 +151,7 @@ std::filesystem::path FlashUtilityView::extract_tar(std::filesystem::path::strin
 
 bool FlashUtilityView::flash_firmware(std::filesystem::path::string_type path) {
     ui::Painter painter;
+    menu_view.hidden(true);
     if (endsWith(path, u".tar")) {
         // extract, then update
         path = extract_tar(u'/' + path, painter).native();
@@ -166,13 +161,14 @@ bool FlashUtilityView::flash_firmware(std::filesystem::path::string_type path) {
         painter.fill_rectangle({0, 50, portapack::display.width(), 90}, Theme::getInstance()->bg_darkest->background);
         painter.draw_string({0, 60}, *Theme::getInstance()->fg_red, "BAD FIRMWARE FILE OR W/R ERR");
         chThdSleepMilliseconds(5000);
+        menu_view.hidden(false);
         return false;
     }
     painter.fill_rectangle(
         {0, 0, portapack::display.width(), portapack::display.height()},
         Theme::getInstance()->bg_darkest->background);
 
-    painter.draw_string({12, 24}, this->nav_.style(), "This will take 15 seconds.");
+    painter.draw_string({12, 24}, this->nav_.style(), "This will take 15-45 sec.");
     painter.draw_string({12, 64}, this->nav_.style(), "Please wait while LED RX");
     painter.draw_string({12, 84}, this->nav_.style(), "is on and TX is flashing.");
     painter.draw_string({12, 124}, this->nav_.style(), "Device will then restart.");

firmware/application/apps/ui_flash_utility.hpp

@@ -49,7 +49,6 @@ class FlashUtilityView : public View {
 
     std::string title() const override { return "Flash Utility"; };
     bool flash_firmware(std::filesystem::path::string_type path);
-    void wait_till_loaded();
 
    private:
     NavigationView& nav_;
@@ -68,14 +67,6 @@ class FlashUtilityView : public View {
     void firmware_selected(std::filesystem::path::string_type path);
 
     bool endsWith(const std::u16string& str, const std::u16string& suffix);
-    bool isLoaded = false;
-    uint8_t refreshcnt = 0;
-    MessageHandlerRegistration message_handler_frame_sync{
-        Message::ID::DisplayFrameSync,
-        [this](const Message* const) {
-            refreshcnt++;
-            if (refreshcnt > 5) isLoaded = true;
-        }};
 };
 
 } /* namespace ui */

firmware/application/apps/ui_looking_glass_app.cpp

@@ -328,8 +328,8 @@ void GlassView::update_min(int32_t v) {
         min_size = search_span;
     if (min_size < 1)
         min_size = 1;
-    if (v > 7200 - min_size) {
-        v = 7200 - min_size;
+    if (v > LOOKING_GLASS_MAX_FREQ_MHZ - min_size) {
+        v = LOOKING_GLASS_MAX_FREQ_MHZ - min_size;
     }
     if (v > (field_frequency_max.value() - min_size))
         field_frequency_max.set_value(v + min_size, false);
@@ -348,6 +348,9 @@ void GlassView::update_max(int32_t v) {
     if (v < min_size) {
         v = min_size;
     }
+    if (v > LOOKING_GLASS_MAX_FREQ_MHZ) {
+        v = LOOKING_GLASS_MAX_FREQ_MHZ;
+    }
     if (v < (field_frequency_min.value() + min_size))
         field_frequency_min.set_value(v - min_size, false);
     if (locked_range)
@@ -398,7 +401,7 @@ GlassView::GlassView(
                   &button_jump,
                   &button_rst,
                   &button_rssi,
-                  &freq_stats});
+                  &freq_stats, &button_play});
 
     load_presets();  // Load available presets from TXT files (or default).
     preset_index = clip<uint8_t>(preset_index, 0, presets_db.size());
@@ -554,6 +557,21 @@ GlassView::GlassView(
         reset_live_view();
     };
 
+    button_play.on_select = [this](ImageButton&) {
+        paused = !paused;
+        if (paused) {
+            button_play.set_foreground(Theme::getInstance()->fg_red->foreground);
+            button_play.set_background(Theme::getInstance()->fg_red->background);
+            baseband::spectrum_streaming_stop();
+            button_play.set_bitmap(&bitmap_play);
+        } else {
+            button_play.set_foreground(Theme::getInstance()->fg_green->foreground);
+            button_play.set_background(Theme::getInstance()->fg_green->background);
+            baseband::spectrum_streaming_start();
+            button_play.set_bitmap(&bitmap_stop);
+        }
+    };
+
     display.scroll_set_area(109, screen_height - 1);  // Restart scroll on the correct coordinates
 
     // trigger:
@@ -630,7 +648,7 @@ void GlassView::load_presets() {
                 parse_int(cols[1], entry.max);
                 entry.label = trimr(cols[2]);
 
-                if (entry.min == 0 || entry.max == 0 || entry.min >= entry.max)
+                if (entry.max == 0 || entry.min >= entry.max)
                     continue;  // Invalid line.
 
                 presets_db.emplace_back(std::move(entry));

firmware/application/apps/ui_looking_glass_app.hpp

@@ -42,6 +42,7 @@ namespace ui {
 #define LOOKING_GLASS_SLICE_WIDTH_MAX 20000000
 #define LOOKING_GLASS_MAX_SAMPLERATE 20000000
 #define MHZ_DIV 1000000
+#define LOOKING_GLASS_MAX_FREQ_MHZ 7250  // HackRF upper tuning limit (band_high top), in MHz
 
 // blanked DC (16 centered bins ignored ) and top left and right (2 bins ignored on each side )
 #define LOOKING_GLASS_FASTSCAN 0
@@ -129,6 +130,8 @@ class GlassView : public View {
     void populate_presets();
     void launch_audio(rf::Frequency center_freq);
 
+    bool paused{false};
+
     rf::Frequency search_span{0};
     rf::Frequency f_center{0};
     rf::Frequency f_center_ini{0};
@@ -179,14 +182,14 @@ class GlassView : public View {
     NumberField field_frequency_min{
         {UI_POS_X(4), UI_POS_Y(0)},
         4,
-        {0, 7199},
+        {0, LOOKING_GLASS_MAX_FREQ_MHZ - 1},
         1,  // number of steps by encoder delta
         ' '};
 
     NumberField field_frequency_max{
         {UI_POS_X(13), UI_POS_Y(0)},
         4,
-        {1, 7200},
+        {1, LOOKING_GLASS_MAX_FREQ_MHZ},
         1,  // number of steps by encoder delta
         ' '};
 
@@ -221,6 +224,12 @@ class GlassView : public View {
         {UI_POS_X_RIGHT(8), UI_POS_Y(2.25), UI_POS_WIDTH(8), UI_POS_HEIGHT(0.5)},
         ""};
 
+    ImageButton button_play{
+        {UI_POS_X_RIGHT(2), UI_POS_Y(3.25) - 2, UI_POS_WIDTH(2), UI_POS_HEIGHT(0.5)},
+        &bitmap_stop,
+        Theme::getInstance()->fg_green->foreground,
+        Theme::getInstance()->fg_green->background};
+
     TextField field_marker{
         {UI_POS_X(12), UI_POS_Y(3), UI_POS_WIDTH(9), UI_POS_HEIGHT(1)},
         ""};

firmware/application/apps/ui_settings.cpp

@@ -6,7 +6,7 @@
  * Copyright (C) 2024 Mark Thompson
  * Copyright (C) 2024 u-foka
  * Copyright (C) 2024 HTotoo
- * copyleft 2024 zxkmm AKA zix aka sommermorgentraum
+ * copyleft 2024 zxkmm
  *
  * This file is part of PortaPack.
  *
@@ -1163,6 +1163,7 @@ SetBatteryView::SetBatteryView(NavigationView& nav) {
                   &field_battcap,
                   &button_help_cap,
                   &checkbox_overridebatt,
+                  &checkbox_battery_replaceable,
                   &checkbox_battery_charge_hint});
 
     if (i2cdev::I2CDevManager::get_dev_by_model(I2C_DEVMDL::I2CDEVMDL_MAX17055)) add_children({&button_reset, &labels2});
@@ -1170,14 +1171,20 @@ SetBatteryView::SetBatteryView(NavigationView& nav) {
     button_save.on_select = [&nav, this](Button&) {
         pmem::set_ui_override_batt_calc(checkbox_overridebatt.value());
         pmem::set_ui_battery_charge_hint(checkbox_battery_charge_hint.value());
+        pmem::set_battery_replaceable(checkbox_battery_replaceable.value());
         battery::BatteryManagement::set_calc_override(checkbox_overridebatt.value());
-        if (((uint32_t)field_battcap.value() != pmem::battery_cap_mah()) || (!pmem::battery_cap_valid())) {
+        i2cdev::I2cDev_MAX17055* dev = (i2cdev::I2cDev_MAX17055*)i2cdev::I2CDevManager::get_dev_by_model(I2C_DEVMDL::I2CDEVMDL_MAX17055);
+        if (dev) dev->resetChangedFlag();
+        if ((((uint32_t)field_battcap.value() != pmem::battery_cap_mah()) || (!pmem::battery_cap_valid())) || (dev && dev->getIsBattChanged())) {
             pmem::set_battery_cap_mah(field_battcap.value());
-            i2cdev::I2cDev_MAX17055* dev = (i2cdev::I2cDev_MAX17055*)i2cdev::I2CDevManager::get_dev_by_model(I2C_DEVMDL::I2CDEVMDL_MAX17055);
             if (dev && !dev->reInit()) {
                 nav.display_modal("Error", "Battery gauge re-init failed");
                 return;
             }
+            if (dev) {
+                dev->resetChangedFlag();
+                dev->update();  // resend the new data
+            }
         }
         send_system_refresh();
         nav.pop();
@@ -1206,6 +1213,7 @@ SetBatteryView::SetBatteryView(NavigationView& nav) {
 
     checkbox_overridebatt.set_value(pmem::ui_override_batt_calc());
     checkbox_battery_charge_hint.set_value(pmem::ui_battery_charge_hint());
+    checkbox_battery_replaceable.set_value(pmem::battery_replaceable());
 
     field_battcap.set_value(pmem::battery_cap_mah());
 

firmware/application/apps/ui_settings.hpp

@@ -5,7 +5,7 @@
  * Copyright (C) 2023 Kyle Reed
  * Copyright (C) 2024 Mark Thompson
  * Copyright (C) 2024 u-foka
- * copyleft 2024 zxkmm AKA zix aka sommermorgentraum
+ * copyleft 2024 zxkmm
  *
  * This file is part of PortaPack.
  *
@@ -1053,7 +1053,7 @@ class SetBatteryView : public View {
         {{UI_POS_X_CENTER(17), UI_POS_Y(8)}, "Battery capacity", Theme::getInstance()->fg_light->foreground},
         {{UI_POS_X(7), UI_POS_Y(9)}, "mAh", Theme::getInstance()->fg_light->foreground}};
 
-    Labels labels2{{{UI_POS_X(1), UI_POS_Y(11)}, "Reset IC's learned params.", Theme::getInstance()->fg_light->foreground}};
+    Labels labels2{{{UI_POS_X(1), UI_POS_Y_BOTTOM(7)}, "Reset IC's learned params.", Theme::getInstance()->fg_light->foreground}};
 
     NumberField field_battcap{
         {UI_POS_X(1), UI_POS_Y(9)},
@@ -1078,17 +1078,22 @@ class SetBatteryView : public View {
         23,
         "Charge hint"};
 
+    Checkbox checkbox_battery_replaceable{
+        {UI_POS_X(2), UI_POS_Y(11)},
+        23,
+        "Replaceable battery"};
+
     Button button_cancel{
-        {UI_POS_X_CENTER(12) + UI_POS_WIDTH(8), UI_POS_Y_BOTTOM(4), UI_POS_WIDTH(12), UI_POS_HEIGHT(2)},
+        {UI_POS_X_CENTER(12) + UI_POS_WIDTH(8), UI_POS_Y_BOTTOM(3), UI_POS_WIDTH(12), UI_POS_HEIGHT(2)},
         "Cancel",
     };
 
     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)},
+        {UI_POS_X_CENTER(12) - UI_POS_WIDTH(8), UI_POS_Y_BOTTOM(3), UI_POS_WIDTH(12), UI_POS_HEIGHT(2)},
         "Save"};
 
     Button button_reset{
-        {UI_POS_X_CENTER(12) - UI_POS_WIDTH(8), UI_POS_Y(13), UI_POS_WIDTH(12), UI_POS_HEIGHT(2)},
+        {UI_POS_X_CENTER(12) - UI_POS_WIDTH(8), UI_POS_Y_BOTTOM(6), UI_POS_WIDTH(12), UI_POS_HEIGHT(2)},
         "Reset",
     };
 };

firmware/application/baseband_api.cpp

@@ -361,6 +361,16 @@ void set_noaaapt_config() {
     send_message(&message);
 }
 
+void set_vor_config(bool enabled) {
+    const VorRxConfigureMessage message{enabled};
+    send_message(&message);
+}
+
+void set_vor_tx_config(uint16_t radial_deg, bool ident_enabled, const std::string& ident, bool enabled) {
+    const VorTxConfigureMessage message{radial_deg, ident_enabled, ident.c_str(), enabled};
+    send_message(&message);
+}
+
 void set_flex_config() {
     const FlexConfigureMessage message{};
     send_message(&message);
@@ -445,6 +455,14 @@ void set_p25tx_data(const uint8_t* dibits, uint16_t frame_length) {
     send_message(&msg);
 }
 
+void set_hunter_config(uint32_t threshold, uint32_t hangtime_ms, bool start) {
+    HunterConfigMessage message{};
+    message.energy_threshold = threshold;
+    message.hangtime_ms = hangtime_ms;
+    message.start = start;
+    send_message(&message);
+}
+
 static bool baseband_image_running = false;
 
 bool is_image_running() {

firmware/application/baseband_api.hpp

@@ -113,6 +113,8 @@ 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_vor_config(bool enabled = true);
+void set_vor_tx_config(uint16_t radial_deg, bool ident_enabled = true, const std::string& ident = "", bool enabled = true);
 void set_flex_config();
 void set_bitstream_config(uint32_t deviation, uint8_t mode);                                                   // mode 0 for am, 1 for 2fsk
 void set_rtty_config(uint16_t baud, uint16_t shift, uint8_t* payload = nullptr, uint16_t payload_length = 0);  // baud*100
@@ -120,6 +122,7 @@ void set_rtty_config(RTTYDataMessage& message);
 void set_epirb_tx_config(EPIRBTXDataMessage& message);
 void set_epirb_rx_config(EPIRBRXConfig& message);
 void set_p25tx_data(const uint8_t* dibits, uint16_t frame_length);
+void set_hunter_config(uint32_t threshold, uint32_t hangtime_ms, bool start);
 
 void request_roger_beep();
 void request_rssi_beep();

firmware/application/clock_manager.cpp

@@ -25,12 +25,19 @@
 #include "portapack_io.hpp"
 #include "portapack.hpp"
 
+#include "lpc43xx.inc"
+
 #include "hackrf_hal.hpp"
 using namespace hackrf::one;
 
 #include "lpc43xx_cpp.hpp"
 using namespace lpc43xx;
 
+#ifdef PRALINE
+#include "hackrf_gpio.hpp"
+#include "gpio.hpp"
+#endif
+
 #ifdef PRALINE
 extern "C" {
 #include "fpga_bridge.h"
@@ -412,7 +419,11 @@ std::string ClockManager::get_freq() {
            to_string_dec_uint((reference.frequency % 1000000) / 100, 4, '0') + " MHz";
 }
 
-static void portapack_tcxo_enable() {
+void ClockManager::portapack_tcxo_enable() {
+#ifdef PRALINE
+    gpio_control::clkin_ctrl.setActive();
+    set_p1_control(P1_Function::P22_ClkIn);
+#endif
     portapack::io.reference_oscillator(true);
 
     /* Delay >10ms at 96MHz clock speed for reference oscillator to start. */
@@ -421,7 +432,10 @@ static void portapack_tcxo_enable() {
     while (delay--);
 }
 
-static void portapack_tcxo_disable() {
+void ClockManager::portapack_tcxo_disable() {
+#ifdef PRALINE
+    gpio_control::clkin_ctrl.setInactive();
+#endif
     portapack::io.reference_oscillator(false);
 }
 
@@ -429,33 +443,6 @@ static void portapack_tcxo_disable() {
 using namespace hackrf::one;
 
 void ClockManager::init_clock_generator() {
-#ifdef PRALINE
-    /* Route the PRALINE P22 10MHz reference to the Si5351 CLKIN pin. */
-    LPC_SCU->SFSP[2][10] = 0xF0;
-    LPC_SCU->SFSP[6][8] = 0xF4;
-    LPC_SCU->SFSP[6][9] = 0xF0;
-    LPC_SCU->SFSP[1][20] = 0xF0;
-
-    gpio_p1_ctrl0.output();
-    gpio_p1_ctrl1.output();
-    gpio_p1_ctrl2.output();
-    gpio_clkin_ctrl.output();
-
-    gpio_p1_ctrl0.write(0);
-    gpio_p1_ctrl1.write(0);
-    gpio_p1_ctrl2.write(1);
-    gpio_clkin_ctrl.write(1);
-
-    chThdSleepMilliseconds(20);
-
-#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();
@@ -693,7 +680,7 @@ ClockManager::Reference ClockManager::choose_reference() {
     }
 #else
     if (hackrf_r9) {
-        gpio_r9_clkin_en.write(1);
+        gpio_control::r9_clkin_en.setActive();
         volatile uint32_t delay = 240000 + 24000;
         while (delay--);
     }
@@ -708,7 +695,7 @@ ClockManager::Reference ClockManager::choose_reference() {
     }
 
     if (hackrf_r9) {
-        gpio_r9_clkin_en.write(0);
+        gpio_control::r9_clkin_en.setInactive();
     }
 #endif
 
@@ -1195,8 +1182,7 @@ void ClockManager::enable_clock_output(bool enable) {
     }
 #else
     if (hackrf_r9) {
-        gpio_r9_clkout_en.output();
-        gpio_r9_clkout_en.write(enable);
+        gpio_control::r9_clkout_en.setState(enable);
 
         // NOTE: RETURNING HERE IF HACKRF_R9 TO PREVENT CLK2 FROM BEING DISABLED OR FREQ MODIFIED SINCE CLK2 ON R9 IS
         // USED FOR BOTH CLKOUT AND FOR THE MCU_CLOCK (== GP_CLKIN) WHICH OTHER LP43XX CLOCKS CURRENTLY RELY ON.
@@ -1224,3 +1210,74 @@ void ClockManager::enable_clock_output(bool enable) {
     }
 #endif
 }
+
+#ifdef PRALINE
+
+void ClockManager::set_p1_control(P1_Function func) {
+    // Truth table based on P1_Control.csv (L=setInactive, H=setActive)
+    switch (func) {
+        case P1_Function::TriggerIn:
+            gpio_control::p1_ctrl2.setInactive();
+            gpio_control::p1_ctrl1.setInactive();
+            gpio_control::p1_ctrl0.setInactive();
+            break;
+        case P1_Function::AuxClk1:
+            gpio_control::p1_ctrl2.setInactive();
+            gpio_control::p1_ctrl1.setInactive();
+            gpio_control::p1_ctrl0.setActive();
+            break;
+        case P1_Function::ClkIn:
+            gpio_control::p1_ctrl2.setInactive();
+            gpio_control::p1_ctrl1.setActive();
+            gpio_control::p1_ctrl0.setInactive();
+            break;
+        case P1_Function::TriggerOut:
+            gpio_control::p1_ctrl2.setInactive();
+            gpio_control::p1_ctrl1.setActive();
+            gpio_control::p1_ctrl0.setActive();
+            break;
+        case P1_Function::P22_ClkIn:
+            gpio_control::p1_ctrl2.setActive();
+            gpio_control::p1_ctrl1.setInactive();
+            gpio_control::p1_ctrl0.setInactive();
+            break;
+        case P1_Function::P2_5:
+            gpio_control::p1_ctrl2.setActive();
+            gpio_control::p1_ctrl1.setInactive();
+            gpio_control::p1_ctrl0.setActive();
+            break;
+        case P1_Function::NotConnected:
+            gpio_control::p1_ctrl2.setActive();
+            gpio_control::p1_ctrl1.setActive();
+            gpio_control::p1_ctrl0.setInactive();
+            break;
+        case P1_Function::AuxClk2:
+            gpio_control::p1_ctrl2.setActive();
+            gpio_control::p1_ctrl1.setActive();
+            gpio_control::p1_ctrl0.setActive();
+            break;
+    }
+}
+
+void ClockManager::set_p2_control(P2_Function func) {
+    // Ensure all P2 control pins are configured as outputs
+
+    // Truth table based on P2_Control.csv (L=setInactive, H=setActive)
+    switch (func) {
+        case P2_Function::Clk3:
+            // CTRL0 is 'X' (don't care) according to CSV, we default it to Low (setInactive)
+            gpio_control::p2_ctrl1.setInactive();
+            gpio_control::p2_ctrl0.setInactive();
+            break;
+        case P2_Function::TriggerIn:
+            gpio_control::p2_ctrl1.setActive();
+            gpio_control::p2_ctrl0.setInactive();
+            break;
+        case P2_Function::TriggerOut:
+            gpio_control::p2_ctrl1.setActive();
+            gpio_control::p2_ctrl0.setActive();
+            break;
+    }
+}
+
+#endif

firmware/application/clock_manager.hpp

@@ -77,6 +77,29 @@ class ClockManager {
     void set_reference_ppb(const int32_t ppb);
 
 #ifdef PRALINE
+
+    enum class P1_Function {
+        TriggerIn,     // CTRL2: L, CTRL1: L, CTRL0: L
+        AuxClk1,       // CTRL2: L, CTRL1: L, CTRL0: H
+        ClkIn,         // CTRL2: L, CTRL1: H, CTRL0: L
+        TriggerOut,    // CTRL2: L, CTRL1: H, CTRL0: H
+        P22_ClkIn,     // CTRL2: H, CTRL1: L, CTRL0: L
+        P2_5,          // CTRL2: H, CTRL1: L, CTRL0: H
+        NotConnected,  // CTRL2: H, CTRL1: H, CTRL0: L (NC)
+        AuxClk2        // CTRL2: H, CTRL1: H, CTRL0: H
+    };
+
+    // Multiplexer 2 (P2) Functions - Based on P2_Control.csv
+    enum class P2_Function {
+        Clk3,       // CTRL1: L, CTRL0: X (Don't care)
+        TriggerIn,  // CTRL1: H, CTRL0: L
+        TriggerOut  // CTRL1: H, CTRL0: H
+    };
+
+    // Function declarations
+    void set_p1_control(P1_Function func);
+    void set_p2_control(P2_Function func);
+
     uint8_t get_resampling_n() const { return _resampling_n; }
 
     // Si5351 diagnostic methods
@@ -93,6 +116,9 @@ class ClockManager {
 
     void enable_clock_output(bool enable);
 
+    void portapack_tcxo_enable();
+    void portapack_tcxo_disable();
+
    private:
     I2C& i2c0;
     si5351::Si5351& clock_generator;

firmware/application/config_mode.cpp

@@ -24,6 +24,11 @@
 #include "hackrf_gpio.hpp"
 #include "portapack_hal.hpp"
 
+#include "board.h"
+
+#include "gpio.hpp"
+using namespace gpio_control;
+
 void config_mode_blink_until_dfu();
 
 void config_mode_set() {
@@ -56,7 +61,6 @@ uint32_t blink_patterns[] = {
 
 void config_mode_run() {
     configure_pins_portapack();
-    portapack::gpio_dfu.input();
     portapack::persistent_memory::cache::init();
 
     if (hackrf_r9) {
@@ -75,14 +79,14 @@ void config_mode_run() {
         config_mode_blink_until_dfu();
     }
 
-    auto last_dfu_btn = portapack::gpio_dfu.read();
+    auto last_dfu_btn = dfu_button.read();
 
     int32_t counter = 0;
     int8_t blink_pattern_value = portapack::persistent_memory::config_cpld() +
                                  (portapack::persistent_memory::config_disable_external_tcxo() ? 5 : 0);
 
     while (true) {
-        auto dfu_btn = portapack::gpio_dfu.read();
+        auto dfu_btn = dfu_button.read();
         auto dfu_clicked = last_dfu_btn == true && dfu_btn == false;
         last_dfu_btn = dfu_btn;
 
@@ -103,16 +107,16 @@ void config_mode_run() {
 
         auto tx_value = ((tx_blink_pattern >> ((counter >> 0) & 31)) & 0x1) == 0x1;
         if (tx_value) {
-            hackrf::one::led_tx.on();
+            led_tx.setActive();
         } else {
-            hackrf::one::led_tx.off();
+            led_tx.setInactive();
         }
 
         auto rx_value = ((rx_blink_pattern >> ((counter >> 0) & 31)) & 0x1) == 0x1;
         if (rx_value) {
-            hackrf::one::led_rx.on();
+            led_rx.setActive();
         } else {
-            hackrf::one::led_rx.off();
+            led_rx.setInactive();
         }
 
         chThdSleepMilliseconds(100);
@@ -122,17 +126,17 @@ void config_mode_run() {
 
 void config_mode_blink_until_dfu() {
     while (true) {
-        hackrf::one::led_tx.on();
-        hackrf::one::led_rx.on();
-        hackrf::one::led_usb.on();
+        led_tx.setActive();
+        led_rx.setActive();
+        led_usb.setActive();
         chThdSleepMilliseconds(10);
 
-        hackrf::one::led_tx.off();
-        hackrf::one::led_rx.off();
-        hackrf::one::led_usb.off();
+        led_tx.setInactive();
+        led_rx.setInactive();
+        led_usb.setInactive();
         chThdSleepMilliseconds(115);
 
-        auto dfu_btn = portapack::gpio_dfu.read();
+        auto dfu_btn = dfu_button.read();
         if (dfu_btn)
             break;
     }
@@ -140,7 +144,7 @@ void config_mode_blink_until_dfu() {
     while (true) {
         chThdSleepMilliseconds(10);
 
-        auto dfu_btn = portapack::gpio_dfu.read();
+        auto dfu_btn = dfu_button.read();
         if (!dfu_btn)
             break;
     }

firmware/application/debug.cpp

@@ -33,6 +33,9 @@
 #include "irq_controls.hpp"
 #include "file_path.hpp"
 
+#include "gpio.hpp"
+using namespace gpio_control;
+
 using namespace ui;
 
 #define DEBUG_LOG_FILE "debug_log.txt"
@@ -134,9 +137,9 @@ void draw_line(int32_t y_offset, const char* label, regarm_t value) {
 }
 
 void runtime_error(uint8_t source) {
-    LED led = (source == CORTEX_M0) ? hackrf::one::led_rx : hackrf::one::led_tx;
+    const auto& led = (source == CORTEX_M0) ? led_rx : led_tx;
 
-    led.off();
+    led.setInactive();
 
     // wait for DFU button release if pressed, so we don't immediately jump into stack dump
     while (swizzled_switches() & (1 << (int)Switch::Dfu));

firmware/application/event_m0.cpp

@@ -37,8 +37,8 @@
 
 #include "ch.h"
 
-#include "hackrf_gpio.hpp"
-using namespace hackrf::one;
+#include "gpio.hpp"
+using namespace gpio_control;
 
 #include "irq_rtc.hpp"
 
@@ -185,10 +185,11 @@ void EventDispatcher::charge_deep_sleep(const bool sleep) {
 
         SCB->ICSR |= SCB_ICSR_PENDSTCLR_Msk;
 
+        power_control::vaa_power_off();
+        power_control::core_power_off();
+
 #ifdef PRALINE
         // Power management and GPIO configuration for Praline hardware
-        gpio_vaa_disable.set();
-        gpio_1v2_enable.clear();
         LPC_GPIO->DIR[0] &= ~0xFFFF4000;
         LPC_GPIO->DIR[1] &= ~0xFFFF1000;
         LPC_GPIO->DIR[2] &= ~((1 << 14) | (1 << 13) | (1 << 12) | (1 << 11) | (1 << 10) | (1 << 6) | (1 << 0));
@@ -196,8 +197,6 @@ void EventDispatcher::charge_deep_sleep(const bool sleep) {
         LPC_GPIO->DIR[5] &= ~(1 << 16);
 #else
         // Power management and GPIO configuration for legacy hardware
-        gpio_og_vaa_disable.set();
-        gpio_r9_vaa_disable.clear();
         LPC_GPIO->DIR[0] &= ~0xFFFF4000;
         LPC_GPIO->DIR[1] &= ~0xFFFF1000;
         LPC_GPIO->DIR[2] &= ~((1 << 14) | (1 << 13) | (1 << 12) | (1 << 11) | (1 << 10) | (1 << 6) | (1 << 0));
@@ -228,8 +227,8 @@ void EventDispatcher::charge_deep_sleep(const bool sleep) {
 
         LPC_ADC0->CR &= ~(1 << 21);
         LPC_ADC1->CR &= ~(1 << 21);
-        led_rx.off();
-        led_usb.off();
+        led_rx.setInactive();
+        led_usb.setInactive();
 
         rtc_wakeup_init();
         NVIC_EnableIRQ(I2C0_OR_I2C1_IRQn);
@@ -238,28 +237,29 @@ void EventDispatcher::charge_deep_sleep(const bool sleep) {
             // --- Battery Status Check (I2C) ---
             detect = battery::BatteryManagement::isDetected();
             if (detect) {
-                battery::BatteryManagement::getBatteryInfo(valid_mask, percent, voltage, current);
+                bool dummy;
+                battery::BatteryManagement::getBatteryInfo(valid_mask, percent, voltage, current, dummy);
 
                 bool is_full = (valid_mask == 31 && percent == 100 && current <= 10) ||
                                (valid_mask == 1 && percent == 100);
 
                 if (is_full) {
                     // Case 1: Battery full (All LEDs off)
-                    led_rx.off();
-                    led_tx.off();
+                    led_rx.setInactive();
+                    led_tx.setInactive();
                 } else if ((voltage < 4150 && current < 10) || valid_mask == 0) {
                     // Case 2: Not full but low current draw (<10mA) -> Charging error
-                    led_tx.on();  // LED indicates error/idle
-                    led_rx.off();
+                    led_tx.setActive();  // LED indicates error/idle
+                    led_rx.setInactive();
                 } else {
                     // Case 3: Actively charging
-                    led_rx.on();  // LED indicates charging
-                    led_tx.off();
+                    led_rx.setActive();  // LED indicates charging
+                    led_tx.setInactive();
                 }
             } else {
                 // Case 4: Battery IC not detected -> Error or H2 or older, so don't show that as an error.
-                led_tx.on();
-                led_rx.on();
+                led_tx.setActive();
+                led_rx.setActive();
             }
 
             // Shut down I2C and power down the APB bus for sleep
@@ -400,8 +400,6 @@ void EventDispatcher::handle_local_queue() {
 void EventDispatcher::handle_rtc_tick() {
     sd_card::poll_inserted();
 
-    portapack::temperature_logger.second_tick();
-
     const auto backlight_timer = portapack::persistent_memory::config_backlight_timer();
     if (backlight_timer.timeout_enabled()) {
         if (portapack::bl_tick_counter == backlight_timer.timeout_seconds())

firmware/application/external/app_manager/ui_app_manager.cpp

@@ -1,5 +1,5 @@
 /*
- * copyleft 2024 zxkmm AKA zix aka sommermorgentraum
+ * copyleft 2024 zxkmm
  *
  * This file is part of PortaPack.
  *

firmware/application/external/app_manager/ui_app_manager.hpp

@@ -1,5 +1,5 @@
 /*
- * copyleft 2024 zxkmm AKA zix aka sommermorgentraum
+ * copyleft 2024 zxkmm
  *
  * This file is part of PortaPack.
  *

firmware/application/external/blespam/ui_blespam.cpp

@@ -294,11 +294,11 @@ void BLESpamView::createWindowsPacket() {
     std::copy(res.begin(), res.end(), advertisementData);
 }
 
-void BLESpamView::createNameSpamPacket() {
-    const char* names[] = {"PortaHack", "PwnBt", "iSpam", "GenericFoodVagon", "SignalSnoop", "ByteBandit", "RadioRogue", "RadioRebel", "ByteBlast"};
-
-    const char* name = names[rand() % 9];  //"PortaHack";
+// Builds a "Complete Local Name" HID advertisement for the given name.
+// Shared by NameSpam (built-in list) and Custom (SD card list) modes.
+void BLESpamView::buildNamePacket(const char* name) {
     uint8_t name_len = strlen(name);
+    if (name_len > 19) name_len = 19;  // clamp so the hex string fits advertisementData[63]
 
     uint8_t size = 12 + name_len;
     uint8_t i = 0;
@@ -327,6 +327,65 @@ void BLESpamView::createNameSpamPacket() {
     std::copy(res.begin(), res.end(), advertisementData);
 }
 
+void BLESpamView::createNameSpamPacket() {
+    const char* names[] = {"PortaHack", "PwnBt", "iSpam", "GenericFoodVagon", "SignalSnoop", "ByteBandit", "RadioRogue", "RadioRebel", "ByteBlast"};
+    buildNamePacket(names[rand() % 9]);
+}
+
+// Opens /BLESPAM/NAME.txt once and keeps it open for the session.
+void BLESpamView::open_custom_file() {
+    custom_loaded_ = true;  // attempt only once
+    auto open_error = custom_file_.open(u"/BLESPAM/NAME.txt");
+    custom_file_valid_ = !open_error;  // false -> caller falls back to NameSpam
+}
+
+// Reads the next line into custom_name_ (clamped to 19 chars), advancing the
+// file position. At end of file it seeks back to the start to cycle. Returns
+// false if the file holds no usable name. Only one line is ever held in RAM.
+bool BLESpamView::read_next_custom_name() {
+    if (!custom_file_valid_) return false;
+
+    custom_name_.clear();
+    bool wrapped = false;
+    char c;
+
+    while (true) {
+        auto read_result = custom_file_.read(&c, 1);
+        if (read_result.is_error()) return false;
+
+        if (read_result.value() == 0) {
+            // end of file
+            if (!custom_name_.empty()) break;
+            // use the final line
+            if (wrapped) return false;
+            // no usable name in file
+            if (custom_file_.seek(0).is_error()) return false;
+            // loop back to the first line
+            wrapped = true;
+            continue;
+        }
+
+        if (c == '\n' || c == '\r') {
+            if (!custom_name_.empty()) break;  // got a complete line
+            continue;                          // skip blank lines / CRLF pairs
+        }
+
+        if (custom_name_.size() < 19)  // clamp; keep scanning rest of long line
+            custom_name_.push_back(c);
+    }
+    return true;
+}
+
+void BLESpamView::createCustomPacket() {
+    if (!custom_loaded_) open_custom_file();
+
+    if (!read_next_custom_name()) {  // no file / unreadable / empty -> fall back
+        createNameSpamPacket();
+        return;
+    }
+    buildNamePacket(custom_name_.c_str());
+}
+
 char BLESpamView::randomNameChar() {
     int randVal = rand() % 62;  // 26 uppercase + 26 lowercase + 10 digits
     if (randVal < 26) {
@@ -622,6 +681,9 @@ void BLESpamView::createPacket(ATK_TYPE attackType) {
         case ATK_NAMERANDOM:
             createNameRandomPacket();
             break;
+        case ATK_CUSTOM:
+            createCustomPacket();
+            break;
         case ATK_ALL_SAFE:
             createAnyPacket(true);
             break;

firmware/application/external/blespam/ui_blespam.hpp

@@ -39,6 +39,7 @@
 #include "radio_state.hpp"
 #include "log_file.hpp"
 #include "utility.hpp"
+#include "file.hpp"
 
 using namespace ui;
 
@@ -52,6 +53,7 @@ enum ATK_TYPE {
     ATK_SAMSUNG,
     ATK_NAMESPAM,
     ATK_NAMERANDOM,
+    ATK_CUSTOM,
     ATK_ALL_SAFE,
     ATK_ALL
 };
@@ -131,8 +133,9 @@ class BLESpamView : public View {
          {"Samsung", 4},
          {"NameSpam", 5},
          {"NameRandom", 6},
-         {"All-Safe", 7},
-         {"All", 8}}};
+         {"NameCustom", 7},
+         {"All-Safe", 8},
+         {"All", 9}}};
 
     bool is_running{false};
 
@@ -144,6 +147,11 @@ class BLESpamView : public View {
     bool randomMac{true};
     bool randomDev{true};
 
+    File custom_file_{};             // kept open while in Custom mode
+    std::string custom_name_{};      // holds only the current name (clamped)
+    bool custom_loaded_{false};      // true once an open attempt has been made
+    bool custom_file_valid_{false};  // true if /BLESPAM/NAME.txt opened successfully
+
     uint8_t channel_number = 37;
     char mac[13] = "010203040407";
     char advertisementData[63] = {"03032CFE06162CFED5A59E020AB4\0"};
@@ -156,7 +164,11 @@ class BLESpamView : public View {
     void createIosPacket(bool crash);
     void createSamsungPacket();
     void createWindowsPacket();
+    void buildNamePacket(const char* name);  // shared name advertisement builder (NameSpam / Custom)
     void createNameSpamPacket();
+    void createCustomPacket();
+    void open_custom_file();       // open /BLESPAM/NAME.txt once (one name per line)
+    bool read_next_custom_name();  // read next line into custom_name_, looping at EOF
     void createNameRandomPacket();
     void createAnyPacket(bool safe);
     void createPacket(ATK_TYPE attackType);

firmware/application/external/epirb_rx/ui_beaconlist.cpp

@@ -41,29 +41,26 @@ void BeaconUIList::paint(Painter& painter) {
     auto base_style = Theme::getInstance()->bg_darkest;
 
     for (auto offset = 0u; offset < BEACON_HISTORY_SIZE; ++offset) {
-        // The whole frame needs to be cleared so every line 'slot'
-        // is redrawn even when `text` just left empty.
-        auto text = std::string{};
         auto index = start_index_ + offset;
-        auto line_position = rect.location() + Point{0, 1 + (int)offset * char_height};
-        auto is_selected = offset == selected_index_;
-        auto style = base_style;
 
         if (index < db_->size()) {
+            auto line_position = rect.location() + Point{0, 1 + (int)offset * char_height};
+            auto is_selected = (offset == selected_index_);
+            auto style = base_style;
+
             // Get beacon entry and format it's summary
             auto& entry = db_->get_beacon(index);
             char buffer[64];
             entry.formatSummary(buffer, true);
-            text = std::string(buffer);
+
+            if (index == db_->get_current_beacon_index())
+                // If this is the currently displayed beacon change color
+                style = Theme::getInstance()->bg_medium;
+
+            // Draw entry line using stack buffer directly to avoid heap allocation
+            painter.draw_string(
+                line_position, (is_selected ? style->invert() : *style), buffer);
         }
-
-        if (index == db_->get_current_beacon_index())
-            // If this is the currently displayed beacon change color
-            style = Theme::getInstance()->bg_medium;
-
-        // Draw entry line
-        painter.draw_string(
-            line_position, (is_selected ? style->invert() : *style), text);
     }
 
     // Draw a bounding rectangle when focused.

firmware/application/external/epirb_rx/ui_epirb_rx.cpp

@@ -39,7 +39,7 @@ namespace ui::external_app::epirb_rx {
 
 // URL templates
 #define MAPS_URL_TEMPLATE "https://www.google.com/maps/search/?api=1&query=%s%%2C%s"
-#define BEACON_URL_TEMPALTE "https://decoder2.herokuapp.com/decoded/"
+#define BEACON_URL_TEMPLATE "https://decoder2.herokuapp.com/decoded/"
 
 #ifndef DISABLE_COUNTRY_CACHE
 int CountryManager::cache_count = 0;
@@ -71,15 +71,24 @@ void TextArea::paint(Painter& painter) {
     const Style& s = has_focus() ? style().invert() : style();
 
     painter.fill_rectangle(rect, s.background);
-    // We use \t as line separator since \n is used in STR_COLOR_GREEN
-    auto rows = split_string(content, '\t');
 
     const int line_height = s.font.line_height();
-    size_t line_idx = 0;
-    for (auto row : rows) {
-        painter.draw_string(rect.location() + Point(0, line_idx * line_height), s, row);
+    int line_idx = 0;
+
+    // Efficiently draw lines separated by \t without heap allocations
+    std::string_view sv{content};
+    size_t start = 0;
+    size_t end;
+
+    while ((end = sv.find('\t', start)) != std::string_view::npos) {
+        painter.draw_string(rect.location() + Point(0, line_idx * line_height), s, sv.substr(start, end - start));
+        start = end + 1;
         line_idx++;
     }
+
+    if (start < sv.length()) {
+        painter.draw_string(rect.location() + Point(0, line_idx * line_height), s, sv.substr(start));
+    }
 }
 
 void TextArea::set_content(std::string_view value) {
@@ -102,10 +111,12 @@ bool TextArea::on_key(const KeyEvent key) {
 void EPIRBAppView::decode_packet(const baseband::Packet& packet, Beacon& beacon) {
     // Convert packet bits to byte array for easier processing
     uint8_t data[BEACON_DATA_SIZE]{};
-    for (size_t i = 0; i < std::min(packet.size() / 8, (size_t)BEACON_DATA_SIZE); i++) {
+    size_t max_bytes = std::min(packet.size() / 8, (size_t)BEACON_DATA_SIZE);
+    size_t packet_bit_idx = 0;
+    for (size_t i = 0; i < max_bytes; i++) {
         uint8_t byte_val = 0;
-        for (int bit = 0; bit < 8 && (i * 8 + bit) < packet.size(); bit++) {
-            if (packet[i * 8 + bit]) {
+        for (int bit = 0; bit < 8; bit++, packet_bit_idx++) {
+            if (packet[packet_bit_idx]) {
                 byte_val |= (1 << (7 - bit));
             }
         }
@@ -120,17 +131,31 @@ void EPIRBAppView::decode_packet(const baseband::Packet& packet, Beacon& beacon)
 
 #ifdef LOGGER
 void EPIRBLogger::on_packet(Beacon& beacon) {
-    std::string entry = std::string(beacon.getType()) + "," +
-                        beacon.hexId + "," +
-                        beacon.getProtocolName();  // + ",";
-                                                   // to_string_dec_uint(static_cast<uint8_t>(beacon.emergency_type)) + ",";
-    /*if (!beacon.location.isUnknown()) {
-        entry += beacon.location.toString(Location::LocationFormat::DECIMAL);
-    } else {
-        entry += ",";
-    }
-    entry += "," + beacon.country.toString() + "," +
-             beacon.getSatus() + "\n";*/
+    std::string entry;
+    // Pre-allocate enough memory to avoid heap fragmentation and resizing
+    // 128 bytes should be plenty for this specific log line
+    entry.reserve(128);
+    entry += beacon.getType();
+    entry += ",";
+    entry += beacon.hexId;
+    entry += ",";
+    entry += beacon.getProtocolName();
+
+    /* If you ever uncomment the rest of the logging,
+     * keep using the same pattern! Like this:
+     *
+     * if (!beacon.location.isUnknown()) {
+     * entry += beacon.location.toString(Location::LocationFormat::DECIMAL);
+     * } else {
+     * entry += ",";
+     * }
+     * entry += ",";
+     * entry += beacon.country.toString();
+     * entry += ",";
+     * entry += beacon.getSatus();
+     * entry += "\n";
+     */
+
     log_file.write_entry(beacon.date, entry);
 }
 #endif
@@ -294,12 +319,12 @@ void EPRIBQRView::set_beacon(Beacon* beacon) {
 }
 
 void EPRIBQRView::update_display() {
-    // Update data => we use a single TextArea component for code size optimizaton
+    // Update data => we use a single TextArea component for code size optimization
     char buffer[128];
     char* buffer_pointer = buffer;
-    buffer_pointer += sprintf(buffer_pointer, "%sQR:%s\t\t\t\t\t\t\t\t", STR_COLOR_CYAN, STR_COLOR_WHITE);
+    buffer_pointer += sprintf(buffer_pointer, STR_COLOR_CYAN "QR:" STR_COLOR_WHITE "\t\t\t\t\t\t\t\t");
     if (current_beacon) {
-        buffer_pointer += sprintf(buffer_pointer, "%sData:%s\t", STR_COLOR_CYAN, STR_COLOR_WHITE);
+        buffer_pointer += sprintf(buffer_pointer, STR_COLOR_CYAN "Data:" STR_COLOR_WHITE "\t");
         // HEX ID 30 Hexa or HEX ID 22 Hexa bit 26 to 112
         buffer_pointer += current_beacon->toHexString(buffer_pointer, current_beacon->frame, true, 3, 11);
         (*(buffer_pointer++)) = '\t';
@@ -320,7 +345,7 @@ void EPRIBQRView::update_qr() {
         if (show_map) {
             // Map is selected
             if (!current_beacon->location.isUnknown()) {
-                // Loation is known => actually draw QR
+                // Location is known => actually draw QR
                 current_beacon->location.formatFloatLocation(qr_url, MAPS_URL_TEMPLATE);
                 show_qr = true;
             }
@@ -328,7 +353,7 @@ void EPRIBQRView::update_qr() {
             // Detail is selected
             char* buffer_pointer = qr_url;
             // Send to heroku decoder
-            buffer_pointer += sprintf(qr_url, BEACON_URL_TEMPALTE);
+            buffer_pointer += sprintf(qr_url, BEACON_URL_TEMPLATE);
             current_beacon->hexString(buffer_pointer, false);
             show_qr = true;
         }
@@ -389,11 +414,10 @@ EPIRBAppView::EPIRBAppView(ui::NavigationView& nav)
                   &view_rx,
 #endif
                   &view_qr});
-    using option_t = std::pair<std::string, int32_t>;
-    using options_t = std::vector<option_t>;
-    options_t frequ_options;
+
+    ui::OptionsField::options_t frequ_options;
     // Set frequency combo content according to FREQ.TXT file content
-    for (auto freq : ResourceManager::get_frequencies()) {
+    for (const auto& freq : ResourceManager::get_frequencies()) {
         int32_t freq_value = atol(freq.c_str());
         frequ_options.emplace_back(to_string_rounded_freq(freq_value, 3), freq_value);
     }
@@ -402,7 +426,7 @@ EPIRBAppView::EPIRBAppView(ui::NavigationView& nav)
     options_frequency.on_change = [this](size_t, ui::OptionsField::value_t v) {
         receiver_model.set_target_frequency(v);
     };
-    // Restore frequency from preferencies
+    // Restore frequency from preferences
     options_frequency.set_by_value(receiver_model.target_frequency());
 
     // Tick second timer
@@ -456,6 +480,13 @@ EPIRBAppView::EPIRBAppView(ui::NavigationView& nav)
     audio::set_rate(audio::Rate::Hz_24000);
     audio::output::start();
 
+    // Tint the channel-power bar red when the front-end overloads (ADC near
+    // full scale). Clipping distorts the constant-envelope carrier and the
+    // +/-1.1 rad biphase jumps the decoder relies on, so this cues the user to
+    // reduce RF-amp/LNA/VGA gain. -3 dBFS is a heuristic on the post-decimation
+    // level (not a literal ADC clip count); tune if it trips too early/late.
+    channel.set_overload_threshold(-3);
+
     update_display();
 
 #ifdef LOGGER
@@ -551,7 +582,10 @@ void EPIRBAppView::update_map() {
         if (!beacon.location.isUnknown()) {
             hide_map = false;
             // Set new position
-            view_map.set_main_marker(std::string(beacon.getType()) + "-" + beacon.shortId(), beacon.location.latitude.getFloatValue(), beacon.location.longitude.getFloatValue());
+            std::string tag = beacon.getType();
+            tag += "-";
+            tag += beacon.shortId();
+            view_map.set_main_marker(tag, beacon.location.latitude.getFloatValue(), beacon.location.longitude.getFloatValue());
             // Add all beacons with valid locations as markers
             for (size_t j = 0; j < size; j++) {
                 if (cur_index != j) {
@@ -560,8 +594,10 @@ void EPIRBAppView::update_map() {
                         ui::GeoMarker marker;
                         marker.lat = other_beacon.location.latitude.getFloatValue();
                         marker.lon = other_beacon.location.longitude.getFloatValue();
-                        marker.angle = 0;
-                        marker.tag = std::string(other_beacon.getType()) + "-" + other_beacon.shortId();
+                        tag = other_beacon.getType();
+                        tag += "-";
+                        tag += other_beacon.shortId();
+                        marker.tag = tag;
                         view_map.add_marker(marker);
                     }
                 }
@@ -580,15 +616,16 @@ void EPIRBAppView::on_tick_second() {
 }
 
 void EPIRBAppView::update_display() {
-    // We use a single TextArea for code size optimization
     char buffer[128];
-    char* buffer_pointer = buffer;
-    buffer_pointer += sprintf(buffer_pointer, "%sListening...     Beacon:%s%2d/%d\t", STR_COLOR_CYAN, STR_COLOR_WHITE, (beacon_db.get_current_beacon_index() + 1), beacons_received);
-    buffer_pointer += sprintf(buffer_pointer, "%sStats: %s%03dOK %s%03dCOR %s%03dERR\t", STR_COLOR_CYAN, STR_COLOR_GREEN, packets_valid, STR_COLOR_YELLOW, packets_corrected, STR_COLOR_RED, packets_error);
-    buffer_pointer += sprintf(buffer_pointer, "%sCurrent:%s ", STR_COLOR_CYAN, STR_COLOR_WHITE);
+    int len = sprintf(buffer,
+                      STR_COLOR_CYAN "Listening...    Beacon:" STR_COLOR_WHITE "%2d/%d\t" STR_COLOR_CYAN "Stats: " STR_COLOR_GREEN "%03dOK " STR_COLOR_YELLOW "%03dCOR " STR_COLOR_RED "%03dERR\t" STR_COLOR_CYAN "Current:" STR_COLOR_WHITE " ",
+                      (beacon_db.get_current_beacon_index() + 1), beacons_received,
+                      packets_valid, packets_corrected, packets_error);
+
     if (!beacon_db.empty()) {
-        beacon_db.get_current_beacon().formatSummary(buffer_pointer, false);
+        beacon_db.get_current_beacon().formatSummary(buffer + len, false);
     }
+
     text_status.set_content(buffer);
 }
 

firmware/application/external/epirb_rx/ui_epirb_rx.hpp

@@ -1,324 +1,324 @@
-/*
- * Copyright (C) 2024 EPIRB Decoder Implementation
- * Copyright (C) 2026 Frederic BORRY - ADRASEC 31
- *
- * 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 __UI_EPIRB_RX_H__
-#define __UI_EPIRB_RX_H__
-
-#include "app_settings.hpp"
-#include "radio_state.hpp"
-#include "ui_widget.hpp"
-#include "ui_navigation.hpp"
-#include "ui_receiver.hpp"
-#include "ui_geomap.hpp"
-
-// Specan is disable to keep application size below the 32k limit
-// #define SPECAN
-
-// Comment to disable timout reset on select and save approx 200 bytes of flash
-#ifndef PRALINE
-// Application does not fit on Praline with RESET_TIMER enabled
-#define RESET_TIMER
-#endif
-// Comment to disable squelch control
-#define SQUELCH
-// Comment to disable beacon selection by encoder on detail tab
-#define DETAIL_TAB_BEACON_SEL
-// #define LOGGER
-
-#ifdef SPECAN
-#include "ui_spectrum.hpp"
-#endif
-
-#include "ui_tabview.hpp"
-
-#include "ui_qrcode.hpp"
-
-#include "event_m0.hpp"
-#include "message.hpp"
-#include "log_file.hpp"
-
-#include "baseband_packet.hpp"
-
-#include "audio.hpp"
-
-#include "beacon.hpp"
-#include "beacon_db.hpp"
-#include "ui_beaconlist.hpp"
-#include "resources.hpp"
-
-namespace ui::external_app::epirb_rx {
-
-/**
- * Status of a packet
- */
-enum class PacketStatus : uint8_t {
-    Valid = 0,
-    Corrected = 1,
-    Error = 2
-};
-
-// Position of tabs in tab view
-#define EPIRB_TAB_POS_Y (UI_POS_Y(4) + 3 * 8)
-// Height of tabs in tab view
-#define EPIRB_TAB_HEIGHT (screen_height - EPIRB_TAB_POS_Y - UI_POS_HEIGHT(1))
-
-#ifdef LOGGER
-class EPIRBLogger {
-   public:
-    Optional<File::Error> append(const std::filesystem::path& filename) {
-        return log_file.append(filename);
-    }
-
-    void on_packet(Beacon& beacon);
-
-   private:
-    LogFile log_file{};
-};
-#endif
-
-/**
- * Dedicated TextArea component used to optimize application code size
- */
-class TextArea : public Widget {
-   public:
-    TextArea(Rect parent_rect);
-
-#ifdef RESET_TIMER
-    std::function<void(TextArea&)> on_select{};
-    bool on_key(const KeyEvent key) override;
-#endif
-
-    void set_content(std::string_view value);
-    void paint(Painter& painter) override;
-
-   private:
-    std::string content{};
-};
-
-// Forward declaration
-class EPIRBAppView;
-
-/**
- * View for beacon detail tab
- */
-class EPIRBDetailView : public View {
-   public:
-    EPIRBDetailView(Rect parent_rect, EPIRBAppView& parent);
-    void set_beacon(Beacon& beacon);
-#ifdef DETAIL_TAB_BEACON_SEL
-    bool on_encoder(EncoderEvent delta) override;
-#endif
-
-   private:
-    TextArea text_beacon{{UI_POS_X(0), UI_POS_Y(0), UI_POS_MAXWIDTH, EPIRB_TAB_HEIGHT}};
-    EPIRBAppView& parent_app;
-};
-
-#define EPIRB_RX_DEFAULT_LATITUDE 43.604f
-#define EPIRB_RX_DEFAULT_LONGITUDE 1.458f
-
-/**
- * View for beacon map tab
- */
-class EPIRBMapView : public View {
-   public:
-    EPIRBMapView(Rect parent_rect);
-    void paint(Painter& painter) override;
-    void on_show() override;
-    void set_main_marker(const std::string& label, float lat, float lon);
-    void clear_markers();
-    void add_marker(GeoMarker& marker);
-    void hide_map(bool hide);
-    void repaint();
-
-   private:
-    GeoMap geomap{{0, 0, UI_POS_MAXWIDTH, EPIRB_TAB_HEIGHT}};
-    float lat_{EPIRB_RX_DEFAULT_LATITUDE};
-    float lon_{EPIRB_RX_DEFAULT_LONGITUDE};
-    bool map_hidden{true};
-};
-
-#define QR_WIDTH 126
-#define QR_HEIGHT 127
-
-/**
- * Vieaw for Beacon QR tab
- */
-class EPRIBQRView : public View {
-   public:
-    EPRIBQRView(Rect parent_rect);
-    EPRIBQRView(const EPRIBQRView&) = delete;
-    EPRIBQRView& operator=(const EPRIBQRView&) = delete;
-
-    void set_beacon(Beacon* beacon);
-    void update_qr();
-    void update_display();
-
-   private:
-    bool show_map{true};
-    Beacon* current_beacon{nullptr};
-    char qr_url[128];
-
-    OptionsField options_qr{
-        {UI_POS_X(5), UI_POS_Y(1)},
-        6,
-        {{"Map", 0},
-         {"Detail", 1}}};
-
-    QRCodeImage qr_code{
-        {UI_POS_MAXWIDTH - QR_WIDTH - UI_POS_X(1), UI_POS_Y(1), QR_WIDTH, QR_HEIGHT}};
-
-    TextArea text_data{{UI_POS_X(0), UI_POS_Y(1), UI_POS_MAXWIDTH, EPIRB_TAB_HEIGHT - UI_POS_Y(1)}};
-};
-
-#ifdef SPECAN
-class EPIRBRxView : public spectrum::WaterfallView {
-   public:
-    EPIRBRxView(EPIRBAppView& parent, Rect parent_rect);
-    void on_show() override;
-    void on_hide() override;
-
-   private:
-    EPIRBAppView& app_view;
-};
-#endif
-
-class EPIRBAppView final : public ui::View {
-   public:
-    EPIRBAppView(ui::NavigationView& nav);
-    ~EPIRBAppView();
-
-    void focus() override;
-    void refresh();
-
-    // Message to configure rx baseband
-    EPIRBRXConfig epirb_rx_config_message{};
-    void send_config();
-    // Beacons database
-    BeaconDB beacon_db{};
-    // Update display when beacon selection changed0
-    void on_beacon_change();
-
-    std::string title() const override { return "EPIRB RX"; }
-
-   private:
-    uint8_t squelch{50};
-    // The delay between each frame
-    uint32_t countdown{50};
-    app_settings::SettingsManager settings_{
-        "rx_epirb",
-        app_settings::Mode::RX,
-        {
-            {"epirb_squelch"sv, &squelch},
-            {"countdown"sv, &countdown},
-        }};
-
-    ui::NavigationView& nav_;
-
-#ifdef LOGGER
-    std::unique_ptr<EPIRBLogger> logger{};
-#endif
-
-    OptionsField options_frequency{
-        {UI_POS_X(0), UI_POS_Y(0)},
-        7,
-        {}};
-
-    ui::RFAmpField field_rf_amp{
-        {UI_POS_X(8), UI_POS_Y(0)}};
-
-    ui::LNAGainField field_lna{
-        {UI_POS_X(10), UI_POS_Y(0)}};
-
-    ui::VGAGainField field_vga{
-        {UI_POS_X(13), UI_POS_Y(0)}};
-
-    ui::RSSI rssi{
-        {UI_POS_X(16), UI_POS_Y(0), UI_POS_WIDTH_REMAINING(22), 4}};
-
-    ui::Channel channel{
-        {UI_POS_X(16), UI_POS_Y(0) + 5, UI_POS_WIDTH_REMAINING(22), 4}};
-
-    // ui::Audio audio{
-    //     {UI_POS_X(16), UI_POS_Y(0) + 10, UI_POS_WIDTH_REMAINING(22), 4}};
-
-    ui::AudioVolumeField field_volume{
-        {UI_POS_WIDTH_REMAINING(2), UI_POS_Y(0)}};
-
-#ifdef SQUELCH
-    NumberField field_squelch{
-        {UI_POS_WIDTH_REMAINING(5), UI_POS_Y(0)},
-        2,
-        {0, 99},
-        1,
-        ' '};
-#endif
-
-    // Status display
-    TextArea text_status{{UI_POS_X(0), UI_POS_Y(1), UI_POS_MAXWIDTH, UI_POS_HEIGHT(3)}};
-    TextArea text_timeout{
-        {UI_POS_X(13), UI_POS_Y(1), UI_POS_WIDTH(3), UI_POS_HEIGHT(1)}};
-    SignalToken signal_token_tick_second{};
-    // Timeout string
-    int16_t timeout{0};
-
-    // Tab View
-    Rect view_rect = {0, EPIRB_TAB_POS_Y, UI_POS_MAXWIDTH, EPIRB_TAB_HEIGHT};
-
-    BeaconUIList view_list{view_rect};
-    EPIRBDetailView view_detail{view_rect, (*this)};
-    EPIRBMapView view_map{view_rect};
-#ifdef SPECAN
-    EPIRBRxView view_rx{*this, view_rect};
-#endif
-
-    EPRIBQRView view_qr{view_rect};
-
-    TabView tab_view{
-        {"List", Theme::getInstance()->fg_cyan->foreground, &view_list},
-        {"Detail", Theme::getInstance()->fg_green->foreground, &view_detail},
-        {"Map", Theme::getInstance()->fg_yellow->foreground, &view_map},
-#ifdef SPECAN
-        {"RX", Theme::getInstance()->fg_orange->foreground, &view_rx},
-#endif
-        {"QR", Theme::getInstance()->fg_orange->foreground, &view_qr}};
-
-    uint16_t beacons_received = 0;
-    uint16_t packets_valid = 0;
-    uint16_t packets_corrected = 0;
-    uint16_t packets_error = 0;
-
-    MessageHandlerRegistration message_handler_packet{
-        Message::ID::EPIRBPacket,
-        [this](Message* const p) { on_packet(p); }};
-
-    static void decode_packet(const baseband::Packet& packet, Beacon& beacon);
-    void on_packet(Message* const p);
-    void update_map();
-    void on_tick_second();
-
-    void update_display();
-};
-
-}  // namespace ui::external_app::epirb_rx
-
+/*
+ * Copyright (C) 2024 EPIRB Decoder Implementation
+ * Copyright (C) 2026 Frederic BORRY - ADRASEC 31
+ *
+ * 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 __UI_EPIRB_RX_H__
+#define __UI_EPIRB_RX_H__
+
+#include "app_settings.hpp"
+#include "radio_state.hpp"
+#include "ui_widget.hpp"
+#include "ui_navigation.hpp"
+#include "ui_receiver.hpp"
+#include "ui_geomap.hpp"
+
+// Specan is disable to keep application size below the 32k limit
+// #define SPECAN
+
+// Comment to disable timout reset on select and save approx 200 bytes of flash
+#ifndef PRALINE
+// Application does not fit on Praline with RESET_TIMER enabled
+#define RESET_TIMER
+#endif
+// Comment to disable squelch control
+#define SQUELCH
+// Comment to disable beacon selection by encoder on detail tab
+#define DETAIL_TAB_BEACON_SEL
+// #define LOGGER
+
+#ifdef SPECAN
+#include "ui_spectrum.hpp"
+#endif
+
+#include "ui_tabview.hpp"
+
+#include "ui_qrcode.hpp"
+
+#include "event_m0.hpp"
+#include "message.hpp"
+#include "log_file.hpp"
+
+#include "baseband_packet.hpp"
+
+#include "audio.hpp"
+
+#include "beacon.hpp"
+#include "beacon_db.hpp"
+#include "ui_beaconlist.hpp"
+#include "resources.hpp"
+
+namespace ui::external_app::epirb_rx {
+
+/**
+ * Status of a packet
+ */
+enum class PacketStatus : uint8_t {
+    Valid = 0,
+    Corrected = 1,
+    Error = 2
+};
+
+// Position of tabs in tab view
+#define EPIRB_TAB_POS_Y (UI_POS_Y(4) + 3 * 8)
+// Height of tabs in tab view
+#define EPIRB_TAB_HEIGHT (screen_height - EPIRB_TAB_POS_Y - UI_POS_HEIGHT(1))
+
+#ifdef LOGGER
+class EPIRBLogger {
+   public:
+    Optional<File::Error> append(const std::filesystem::path& filename) {
+        return log_file.append(filename);
+    }
+
+    void on_packet(Beacon& beacon);
+
+   private:
+    LogFile log_file{};
+};
+#endif
+
+/**
+ * Dedicated TextArea component used to optimize application code size
+ */
+class TextArea : public Widget {
+   public:
+    TextArea(Rect parent_rect);
+
+#ifdef RESET_TIMER
+    std::function<void(TextArea&)> on_select{};
+    bool on_key(const KeyEvent key) override;
+#endif
+
+    void set_content(std::string_view value);
+    void paint(Painter& painter) override;
+
+   private:
+    std::string content{};
+};
+
+// Forward declaration
+class EPIRBAppView;
+
+/**
+ * View for beacon detail tab
+ */
+class EPIRBDetailView : public View {
+   public:
+    EPIRBDetailView(Rect parent_rect, EPIRBAppView& parent);
+    void set_beacon(Beacon& beacon);
+#ifdef DETAIL_TAB_BEACON_SEL
+    bool on_encoder(EncoderEvent delta) override;
+#endif
+
+   private:
+    TextArea text_beacon{{UI_POS_X(0), UI_POS_Y(0), UI_POS_MAXWIDTH, EPIRB_TAB_HEIGHT}};
+    EPIRBAppView& parent_app;
+};
+
+#define EPIRB_RX_DEFAULT_LATITUDE 43.604f
+#define EPIRB_RX_DEFAULT_LONGITUDE 1.458f
+
+/**
+ * View for beacon map tab
+ */
+class EPIRBMapView : public View {
+   public:
+    EPIRBMapView(Rect parent_rect);
+    void paint(Painter& painter) override;
+    void on_show() override;
+    void set_main_marker(const std::string& label, float lat, float lon);
+    void clear_markers();
+    void add_marker(GeoMarker& marker);
+    void hide_map(bool hide);
+    void repaint();
+
+   private:
+    GeoMap geomap{{0, 0, UI_POS_MAXWIDTH, EPIRB_TAB_HEIGHT}};
+    float lat_{EPIRB_RX_DEFAULT_LATITUDE};
+    float lon_{EPIRB_RX_DEFAULT_LONGITUDE};
+    bool map_hidden{true};
+};
+
+#define QR_WIDTH 126
+#define QR_HEIGHT 127
+
+/**
+ * Vieaw for Beacon QR tab
+ */
+class EPRIBQRView : public View {
+   public:
+    EPRIBQRView(Rect parent_rect);
+    EPRIBQRView(const EPRIBQRView&) = delete;
+    EPRIBQRView& operator=(const EPRIBQRView&) = delete;
+
+    void set_beacon(Beacon* beacon);
+    void update_qr();
+    void update_display();
+
+   private:
+    bool show_map{true};
+    Beacon* current_beacon{nullptr};
+    char qr_url[128];
+
+    OptionsField options_qr{
+        {UI_POS_X(5), UI_POS_Y(1)},
+        6,
+        {{"Map", 0},
+         {"Detail", 1}}};
+
+    QRCodeImage qr_code{
+        {UI_POS_MAXWIDTH - QR_WIDTH - UI_POS_X(1), UI_POS_Y(1), QR_WIDTH, QR_HEIGHT}};
+
+    TextArea text_data{{UI_POS_X(0), UI_POS_Y(1), UI_POS_MAXWIDTH, EPIRB_TAB_HEIGHT - UI_POS_Y(1)}};
+};
+
+#ifdef SPECAN
+class EPIRBRxView : public spectrum::WaterfallView {
+   public:
+    EPIRBRxView(EPIRBAppView& parent, Rect parent_rect);
+    void on_show() override;
+    void on_hide() override;
+
+   private:
+    EPIRBAppView& app_view;
+};
+#endif
+
+class EPIRBAppView final : public ui::View {
+   public:
+    EPIRBAppView(ui::NavigationView& nav);
+    ~EPIRBAppView();
+
+    void focus() override;
+    void refresh();
+
+    // Message to configure rx baseband
+    EPIRBRXConfig epirb_rx_config_message{};
+    void send_config();
+    // Beacons database
+    BeaconDB beacon_db{};
+    // Update display when beacon selection changed0
+    void on_beacon_change();
+
+    std::string title() const override { return "EPIRB RX"; }
+
+   private:
+    uint8_t squelch{50};
+    // The delay between each frame
+    uint32_t countdown{50};
+    app_settings::SettingsManager settings_{
+        "rx_epirb",
+        app_settings::Mode::RX,
+        {
+            {"epirb_squelch"sv, &squelch},
+            {"countdown"sv, &countdown},
+        }};
+
+    ui::NavigationView& nav_;
+
+#ifdef LOGGER
+    std::unique_ptr<EPIRBLogger> logger{};
+#endif
+
+    OptionsField options_frequency{
+        {UI_POS_X(0), UI_POS_Y(0)},
+        7,
+        {}};
+
+    ui::RFAmpField field_rf_amp{
+        {UI_POS_X(8), UI_POS_Y(0)}};
+
+    ui::LNAGainField field_lna{
+        {UI_POS_X(10), UI_POS_Y(0)}};
+
+    ui::VGAGainField field_vga{
+        {UI_POS_X(13), UI_POS_Y(0)}};
+
+    ui::RSSI rssi{
+        {UI_POS_X(16), UI_POS_Y(0), UI_POS_WIDTH_REMAINING(22), 4}};
+
+    ui::Channel channel{
+        {UI_POS_X(16), UI_POS_Y(0) + 5, UI_POS_WIDTH_REMAINING(22), 4}};
+
+    // ui::Audio audio{
+    //     {UI_POS_X(16), UI_POS_Y(0) + 10, UI_POS_WIDTH_REMAINING(22), 4}};
+
+    ui::AudioVolumeField field_volume{
+        {UI_POS_WIDTH_REMAINING(2), UI_POS_Y(0)}};
+
+#ifdef SQUELCH
+    NumberField field_squelch{
+        {UI_POS_WIDTH_REMAINING(5), UI_POS_Y(0)},
+        2,
+        {0, 99},
+        1,
+        ' '};
+#endif
+
+    // Status display
+    TextArea text_status{{UI_POS_X(0), UI_POS_Y(1), UI_POS_MAXWIDTH, UI_POS_HEIGHT(3)}};
+    TextArea text_timeout{
+        {UI_POS_X(13), UI_POS_Y(1), UI_POS_WIDTH(3), UI_POS_HEIGHT(1)}};
+    SignalToken signal_token_tick_second{};
+    // Timeout string
+    int16_t timeout{0};
+
+    // Tab View
+    Rect view_rect = {0, EPIRB_TAB_POS_Y, UI_POS_MAXWIDTH, EPIRB_TAB_HEIGHT};
+
+    BeaconUIList view_list{view_rect};
+    EPIRBDetailView view_detail{view_rect, (*this)};
+    EPIRBMapView view_map{view_rect};
+#ifdef SPECAN
+    EPIRBRxView view_rx{*this, view_rect};
+#endif
+
+    EPRIBQRView view_qr{view_rect};
+
+    TabView tab_view{
+        {"List", Theme::getInstance()->fg_cyan->foreground, &view_list},
+        {"Detail", Theme::getInstance()->fg_green->foreground, &view_detail},
+        {"Map", Theme::getInstance()->fg_yellow->foreground, &view_map},
+#ifdef SPECAN
+        {"RX", Theme::getInstance()->fg_orange->foreground, &view_rx},
+#endif
+        {"QR", Theme::getInstance()->fg_orange->foreground, &view_qr}};
+
+    uint16_t beacons_received = 0;
+    uint16_t packets_valid = 0;
+    uint16_t packets_corrected = 0;
+    uint16_t packets_error = 0;
+
+    MessageHandlerRegistration message_handler_packet{
+        Message::ID::EPIRBPacket,
+        [this](Message* const p) { on_packet(p); }};
+
+    static void decode_packet(const baseband::Packet& packet, Beacon& beacon);
+    void on_packet(Message* const p);
+    void update_map();
+    void on_tick_second();
+
+    void update_display();
+};
+
+}  // namespace ui::external_app::epirb_rx
+
 #endif  // __UI_EPIRB_RX_H__

firmware/application/external/epirb_tx/beacon.hpp

@@ -143,30 +143,6 @@ static void push_bits(uint8_t* buf, int& pos, uint64_t v, int n) {
         set_bit(buf, pos++, (v >> i) & 1);
 }
 
-/**
- * Convert a beacon to hex string representation
- * @param frame the frame to convert
- * @param start true for the first half of the frame, false for the second half
- * @return the hex string representation of the specieid half of the frame
- */
-std::string beacon_to_hex_string(const uint8_t* frame, bool start) {
-    static const char hex[] = "0123456789ABCDEF";
-
-    std::string out;
-    out.resize(18);
-
-    int offset = start ? 0 : 9;
-
-    for (int i = 0; i < 9; i++) {
-        uint8_t b = frame[offset + i];
-
-        out[i * 2] = hex[b >> 4];
-        out[i * 2 + 1] = hex[b & 0x0F];
-    }
-
-    return out;
-}
-
 /**
  * Generate a beacon in the provided buffer
  * @param frame the buffer to generate the frame in
@@ -351,6 +327,204 @@ size_t generate_beacon(uint8_t* frame, const BeaconParams& params) {
     return 18;
 }
 
+/**
+ * Convert a beacon hex string representation (generic range)
+ * @param frame the frame data
+ * @param offset_bytes starting byte offset
+ * @param count_bytes number of bytes to convert
+ * @return the hex string representation
+ */
+std::string beacon_to_hex_string_range(const uint8_t* frame, int offset_bytes, int count_bytes) {
+    static const char hex[] = "0123456789ABCDEF";
+    std::string out;
+    out.resize(count_bytes * 2);
+    for (int i = 0; i < count_bytes; i++) {
+        uint8_t b = frame[offset_bytes + i];
+        out[i * 2] = hex[b >> 4];
+        out[i * 2 + 1] = hex[b & 0x0F];
+    }
+    return out;
+}
+
+// ---------------------------------------------------------------------------
+// SGB (Second Generation Beacon) — T.018 Rev 7, March 2021
+// ---------------------------------------------------------------------------
+
+// Reference values from T.018 canonical test vector (Appendix B.1)
+#define SGB_TAC_NUMBER 230     // TAC number (16 bits, 0–65535)
+#define SGB_SERIAL_NUMBER 573  // Serial number within TAC (14 bits, 0–16383)
+#define SGB_HOMING_DEVICE 1    // 1 = beacon has 121.5 / 243 MHz homing device
+#define SGB_RLS_FUNCTION 0     // 0 = no Return Link Service function
+
+// BCH(250,202) generator polynomial — lower 48 bits (without leading X^48 term)
+// Full g(x): X^48+X^47+X^46+X^42+X^41+X^40+X^39+X^38+X^37+X^35+X^33+X^32+X^31
+//            +X^26+X^24+X^23+X^22+X^20+X^19+X^18+X^17+X^16+X^13+X^12+X^11+X^10
+//            +X^7+X^4+X^2+X+1
+// Binary MSB-first: 1110001111110101110000101110111110011110010010111 (T.018 App. B.1)
+#define SGB_BCH_G_LOWER UINT64_C(0xC7EB85DF3C97)
+
+/**
+ * Encode latitude for SGB GNSS location protocol (T.018 Appendix C)
+ * Pushes 23 bits: 1-bit N/S flag + 7-bit degrees + 15-bit decimal fraction
+ * @param frame the frame buffer
+ * @param pos current bit position (modified in-place)
+ * @param south true if southern hemisphere
+ * @param lat_mag absolute latitude in decimal degrees (0..90)
+ */
+static void push_sgb_latitude(uint8_t* frame, int& pos, bool south, float lat_mag) {
+    push_bits(frame, pos, south ? 1 : 0, 1);
+    uint32_t deg = (uint32_t)lat_mag;
+    if (deg > 90) deg = 90;
+    float frac = lat_mag - (float)deg;
+    uint32_t frac_n = (uint32_t)(frac * 32768.0f + 0.5f);
+    if (frac_n >= 32768) {
+        frac_n = 0;
+        if (deg < 90) deg++;
+    }
+    push_bits(frame, pos, deg, 7);
+    push_bits(frame, pos, frac_n, 15);
+}
+
+/**
+ * Encode longitude for SGB GNSS location protocol (T.018 Appendix C)
+ * Pushes 24 bits: 1-bit E/W flag + 8-bit degrees + 15-bit decimal fraction
+ * @param frame the frame buffer
+ * @param pos current bit position (modified in-place)
+ * @param west true if western hemisphere
+ * @param lon_mag absolute longitude in decimal degrees (0..180)
+ */
+static void push_sgb_longitude(uint8_t* frame, int& pos, bool west, float lon_mag) {
+    push_bits(frame, pos, west ? 1 : 0, 1);
+    uint32_t deg = (uint32_t)lon_mag;
+    if (deg > 180) deg = 180;
+    float frac = lon_mag - (float)deg;
+    uint32_t frac_n = (uint32_t)(frac * 32768.0f + 0.5f);
+    if (frac_n >= 32768) {
+        frac_n = 0;
+        if (deg < 180) deg++;
+    }
+    push_bits(frame, pos, deg, 8);
+    push_bits(frame, pos, frac_n, 15);
+}
+
+/**
+ * Compute BCH(250,202) parity using LFSR method (T.018 Appendix B.1)
+ * Reads 202 message bits from buffer positions 6..207 and writes
+ * 48 BCH parity bits to buffer positions 208..255.
+ * @param frame the 32-byte SGB buffer (message already written at bits 6..207)
+ */
+static void compute_sgb_bch(uint8_t* frame) {
+    uint64_t reg = 0;
+    for (int i = 0; i < 202; i++) {
+        int bp = i + 6;  // buffer bit position (6 = start of message after padding)
+        bool msg_bit = (frame[bp >> 3] >> (7 - (bp & 7))) & 1;
+        bool feedback = ((reg >> 47) & 1) ^ (msg_bit ? 1u : 0u);
+        reg = (reg << 1) & UINT64_C(0xFFFFFFFFFFFF);
+        if (feedback) reg ^= SGB_BCH_G_LOWER;
+    }
+    // Append 48-bit remainder at buffer positions 208..255
+    int pos = 208;
+    push_bits(frame, pos, reg, 48);
+}
+
+/**
+ * Map BeaconType to SGB 3-bit beacon type code (T.018 Table 3.1, bits 138-140)
+ * 000=ELT, 001=EPIRB, 010=PLB
+ */
+static uint8_t sgb_beacon_type_code(BeaconType t) {
+    switch (t) {
+        case BeaconType::EPIRB:
+            return 0b001;
+        case BeaconType::PLB:
+            return 0b010;
+        default:
+        case BeaconType::ELT:
+            return 0b000;
+    }
+}
+
+/**
+ * Generate a Second Generation Beacon (SGB / T.018) frame.
+ * The 250-bit frame is stored in 32 bytes with 6 leading padding bits
+ * (bits 0..4 = 0, bit 5 = 1).
+ * The rotating field is Type 0 — G.008 Objective Requirements (Table 3.3),
+ * with elapsed_hours and time_last_loc_min updated from elapsed_s.
+ * @param frame     32-byte output buffer
+ * @param params    beacon parameters
+ * @param elapsed_s seconds elapsed since beacon activation (drives rotating field)
+ * @return 32 (size of the generated frame in bytes)
+ */
+size_t generate_sgb_beacon(uint8_t* frame, const BeaconParams& params, uint32_t elapsed_s) {
+    memset(frame, 0, 32);
+
+    // 6 padding bits at start of 32-byte buffer: [0,0,0,0,1,0]  (5th bit (1 based index as per specification) = 1 to indicate self-test mode)
+    set_bit(frame, 4, 1);
+
+    // Message bits start at buffer bit position 6 (= SGB message bit 1)
+    int pos = 6;
+
+    // Bits  1-16:  TAC number (16 bits) — T.018 Table 3.1
+    push_bits(frame, pos, SGB_TAC_NUMBER, 16);
+    // Bits 17-30:  Serial number within TAC (14 bits)
+    push_bits(frame, pos, SGB_SERIAL_NUMBER, 14);
+    // Bits 31-40:  Country code (10 bits, ITU MID)
+    push_bits(frame, pos, params.country & 0x3FFU, 10);
+    // Bit  41:     Status of homing device (1 = has 121.5/243 MHz homing device)
+    push_bits(frame, pos, params.has_121_5 ? 1 : 0, 1);
+    // Bit  42:     RLS function flag (0 = no RLS)
+    push_bits(frame, pos, SGB_RLS_FUNCTION, 1);
+    // Bit  43:     Test protocol flag
+    push_bits(frame, pos, params.is_test ? 1 : 0, 1);
+
+    // Bits 44-66:  Encoded GNSS latitude (23 bits) — T.018 Appendix C
+    float lat_mag = params.location.latitude < 0.0f ? -params.location.latitude : params.location.latitude;
+    push_sgb_latitude(frame, pos, params.location.south, lat_mag);
+    // Bits 67-90:  Encoded GNSS longitude (24 bits)
+    float lon_mag = params.location.longitude < 0.0f ? -params.location.longitude : params.location.longitude;
+    push_sgb_longitude(frame, pos, params.location.west, lon_mag);
+
+    // Bits 91-137: Vessel ID (47 bits = 3-bit type selector + 44-bit body)
+    // Type 000 = No aircraft/maritime identity; body all zeros
+    push_bits(frame, pos, 0, 47);
+
+    // Bits 138-140: Beacon type (3 bits)
+    push_bits(frame, pos, sgb_beacon_type_code(params.type), 3);
+
+    // Bits 141-154: Spare (14 bits, all 1s in normal operation)
+    push_bits(frame, pos, 0x3FFFU, 14);
+
+    // Bits 155-202: Rotating Field Type 0 — G.008 Objective Requirements (Table 3.3)
+    // Bits 155-158: Identifier (4 bits = 0000)
+    push_bits(frame, pos, 0b0000U, 4);
+    // Bits 159-164: Elapsed time since activation (6 bits, 0-63 h, truncated at 63)
+    uint32_t elapsed_h = elapsed_s / 3600;
+    if (elapsed_h > 63) elapsed_h = 63;
+    push_bits(frame, pos, elapsed_h, 6);
+    // Bits 165-175: Time from last encoded location (11 bits, 0-2046 min; 2047 = no fix)
+    uint32_t loc_age_min = elapsed_s / 60;
+    if (loc_age_min > 2046) loc_age_min = 2046;
+    push_bits(frame, pos, loc_age_min, 11);
+    // Bits 176-185: Altitude of encoded location (10 bits; 0x3FF = no altitude)
+    push_bits(frame, pos, 0x3FFU, 10);
+    // Bits 186-193: Dilution of Precision (4-bit HDOP + 4-bit VDOP; 0 = best HDOP, 0 = best VDOP)
+    push_bits(frame, pos, 0b00000000U, 8);
+    // Bits 194-195: Activation notification (00 = manual by user)
+    push_bits(frame, pos, 0b00U, 2);
+    // Bits 196-198: Remaining battery capacity (101 = >75%)
+    push_bits(frame, pos, 0b101U, 3);
+    // Bits 199-200: GNSS status (10 = 3D fix)
+    push_bits(frame, pos, 0b10U, 2);
+    // Bits 201-202: Spare (00)
+    push_bits(frame, pos, 0b00U, 2);
+
+    // pos == 208: 6 padding + 202 message bits consumed
+
+    // Bits 203-250: BCH(250,202) parity (48 bits) computed and written at positions 208-255
+    compute_sgb_bch(frame);
+
+    return 32;
+}
+
 }  // namespace ui::external_app::epirb_tx
 
 #endif /*__BEACON_H__*/

firmware/application/external/epirb_tx/ui_epirb_tx.cpp

@@ -67,12 +67,17 @@ static uint8_t hexToByte(char high, char low) {
     return (hexval(high) << 4) | hexval(low);
 }
 
-std::string EPIRBTXAppView::frame_to_hex_string(bool start) {
-    return beacon_to_hex_string(epirb_tx_message.data, start);
+std::string EPIRBTXAppView::frame_to_hex_string_range(int offset_bytes, int count_bytes) {
+    return beacon_to_hex_string_range(epirb_tx_message.data, offset_bytes, count_bytes);
 }
 
 void EPIRBTXAppView::generate_frame(BeaconParams params) {
-    epirb_tx_message.data_len = generate_beacon(epirb_tx_message.data, params);
+    if (format_sgb) {
+        uint32_t elapsed_s = sgb_start_time > 0 ? (chTimeNow() - sgb_start_time) / 1000 : 0;
+        epirb_tx_message.data_len = generate_sgb_beacon(epirb_tx_message.data, params, elapsed_s);
+    } else {
+        epirb_tx_message.data_len = generate_beacon(epirb_tx_message.data, params);
+    }
 }
 
 void EPIRBTXAppView::on_timer() {
@@ -125,7 +130,7 @@ void EPIRBTXAppView::update_am_transmission() {
     if (am_enabled && transmitting && !transmitting_bpsk) {
         // Start am transmission
         // Restore am frequency
-        epirb_tx_message.mode_bpsk = false;
+        epirb_tx_message.mode_406 = false;
         transmitter_model.set_target_frequency(am_frequency);
         // Send config to baseband
         baseband::set_epirb_tx_config(epirb_tx_message);
@@ -146,10 +151,18 @@ void EPIRBTXAppView::update_frame(bool updateConfig) {
         file_mode_ui->text_description.set(beacon.description.substr(0, max_text_width_ext));
         file_mode_ui->text_description_end.set(beacon.description.size() > max_text_width_ext ? "-" + beacon.description.substr(max_text_width_ext, max_text_width_ext + max_text_width_ext - 1) : "");
         // Udapte frame content on display
-        text_frame.set(beacon.frame.substr(0, 18));
-        text_frame_end.set(beacon.frame.size() > 18 ? beacon.frame.substr(18, 36) : "");
+        bool is_fgb = beacon.frame.size() <= BEACON_HEXA_SIZE_FGB;
+        if (is_fgb) {
+            text_frame.set(beacon.frame.substr(0, BEACON_HEXA_SPLIT_FGB));
+            text_frame_end.set(beacon.frame.size() > BEACON_HEXA_SPLIT_FGB ? beacon.frame.substr(BEACON_HEXA_SPLIT_FGB, BEACON_HEXA_SPLIT_FGB) : "");
+            text_frame_sgb_end.set("");
+        } else {
+            text_frame.set(" " + beacon.frame.substr(1, BEACON_HEXA_SPLIT_SGB - 1));
+            text_frame_end.set(beacon.frame.size() > BEACON_HEXA_SPLIT_SGB ? beacon.frame.substr(BEACON_HEXA_SPLIT_SGB, BEACON_HEXA_SPLIT_SGB) : "");
+            text_frame_sgb_end.set(beacon.frame.size() > 2 * BEACON_HEXA_SPLIT_SGB ? beacon.frame.substr(2 * BEACON_HEXA_SPLIT_SGB, BEACON_HEXA_SPLIT_SGB) : "");
+        }
         // Prepare tx configuration
-        epirb_tx_message.data_len = std::min<size_t>((beacon.frame.size() / 2), 18);
+        epirb_tx_message.data_len = std::min<size_t>((beacon.frame.size() / 2), BEACON_SIZE_SGB);
         for (uint8_t i = 0; i < epirb_tx_message.data_len; i++) {
             epirb_tx_message.data[i] = hexToByte(
                 beacon.frame[2 * i],
@@ -159,8 +172,17 @@ void EPIRBTXAppView::update_frame(bool updateConfig) {
         // In manual mode, generate frame content for current beacon params
         generate_frame(beacon_params);
         // Update frame content on display
-        text_frame.set(frame_to_hex_string(true));
-        text_frame_end.set(frame_to_hex_string(false));
+        if (format_sgb) {
+            // SGB: 32 bytes across 3 lines (BEACON_HEXA_SPLIT_SGB = 22 hex chars = 11 bytes)
+            // Remove first nibble and replace it with a space to match COSPAS hexadecimal representation specification
+            text_frame.set(" " + frame_to_hex_string_range(0, BEACON_HEXA_SPLIT_SGB / 2).substr(1));
+            text_frame_end.set(frame_to_hex_string_range(BEACON_HEXA_SPLIT_SGB / 2, BEACON_HEXA_SPLIT_SGB / 2));
+            text_frame_sgb_end.set(frame_to_hex_string_range(BEACON_HEXA_SPLIT_SGB, (BEACON_HEXA_SPLIT_SGB / 2) - 1));
+        } else {
+            text_frame.set(frame_to_hex_string_range(0, BEACON_HEXA_SPLIT_FGB / 2));
+            text_frame_end.set(frame_to_hex_string_range(BEACON_HEXA_SPLIT_FGB / 2, BEACON_HEXA_SPLIT_FGB / 2));
+            text_frame_sgb_end.set("");
+        }
     }
     if (updateConfig && send_on_change && loop) {
         // Need to update config / send new beacon
@@ -176,14 +198,14 @@ void EPIRBTXAppView::update_frame(bool updateConfig) {
 }
 
 void EPIRBTXAppView::update_config() {
-    if (!epirb_tx_message.mode_bpsk) {
+    if (!epirb_tx_message.mode_406) {
         // Previously in AM mode => restore bpsk frequency
         transmitter_model.set_target_frequency(bpsk_frequency);
         // Update displayed frequency
         tx_view.on_show();
     }
     // Set mode to bpsk
-    epirb_tx_message.mode_bpsk = true;
+    epirb_tx_message.mode_406 = true;
     transmitting_bpsk = true;
     // Set pre/post count
     epirb_tx_message.pre_count = (160 * TONES_SAMPLERATE) / 1000;   // 160 ms carrier (COSPAS spec.)
@@ -198,6 +220,13 @@ void EPIRBTXAppView::set_tx_button_state(bool active) {
 }
 
 void EPIRBTXAppView::start_tx() {
+    if (format_sgb && !mode_file) {
+        // Track start time for the SGB rotating field elapsed-time counter
+        if (!transmitting) sgb_start_time = chTimeNow();
+        // update_frame regenerates the SGB frame with current elapsed time and refreshes display
+        update_frame(false);
+        set_dirty();
+    }
     last_frame_time = chTimeNow();
     update_config();
     loop = loop_enabled;
@@ -221,7 +250,7 @@ void EPIRBTXAppView::on_tx_progress(const uint32_t progress, const bool done) {
         transmitting_bpsk = false;
         if (am_enabled) {
             // BPSK frame sent, switch back to 121.5 AM signal
-            epirb_tx_message.mode_bpsk = false;
+            epirb_tx_message.mode_406 = false;
             // Start am transmission
             update_am_transmission();
         } else {
@@ -310,6 +339,7 @@ void EPIRBTXAppView::update_mode() {
     options_beacon_type.hidden(mode_file);
     options_beacon_protocol.hidden(mode_file);
     options_beacon_country.hidden(mode_file);
+    options_format.hidden(mode_file);
     text_field_beacon_locator.hidden(mode_file);
 }
 
@@ -323,6 +353,7 @@ EPIRBTXAppView::EPIRBTXAppView(
                   &text_beacon_type,
                   &options_beacon_type,
                   &options_beacon_protocol,
+                  &options_format,
                   &text_beacon_country,
                   &options_beacon_country,
                   &checkbox_beacon_internal,
@@ -335,6 +366,7 @@ EPIRBTXAppView::EPIRBTXAppView(
                   &text_field_beacon_locator,
                   &text_frame,
                   &text_frame_end,
+                  &text_frame_sgb_end,
                   &text_timeout,
                   &checkbox_loop,
                   &field_delay,
@@ -376,6 +408,7 @@ EPIRBTXAppView::EPIRBTXAppView(
     init_from_locator(beacon_params.location);
     update_mode();
     update_location();
+    options_format.set_by_value(format_sgb ? 1 : 0);
 
     options_mode.on_change = [this](size_t, OptionsField::value_t value) {
         mode_file = (((BeaconMode)value) == BeaconMode::FILE);
@@ -405,6 +438,13 @@ EPIRBTXAppView::EPIRBTXAppView(
         set_dirty();
     };
 
+    options_format.on_change = [this](size_t, OptionsField::value_t v) {
+        format_sgb = (v == 1);
+        sgb_start_time = 0;  // reset elapsed counter when format changes
+        update_frame();
+        set_dirty();
+    };
+
     options_am_channel.on_change = [this](size_t, OptionsField::value_t v) {
         bool is_real = false;
         switch ((AmChannel)v) {
@@ -458,6 +498,9 @@ EPIRBTXAppView::EPIRBTXAppView(
             case BpskChannel::O:
                 bpsk_frequency = BPSK_FREQUENCY_O;
                 break;
+            case BpskChannel::SGB:
+                bpsk_frequency = BPSK_FREQUENCY_SGB;
+                break;
             default:
                 v = (uint8_t)BpskChannel::HAM;
                 // fallthrough
@@ -590,6 +633,9 @@ EPIRBTXAppView::EPIRBTXAppView(
                 case BPSK_FREQUENCY_O:
                     bpsk_channel = (uint8_t)BpskChannel::O;
                     break;
+                case BPSK_FREQUENCY_SGB:
+                    bpsk_channel = (uint8_t)BpskChannel::SGB;
+                    break;
                 default:
                     bpsk_channel = (uint8_t)BpskChannel::MANUAL;
                     manual_bpsk_frequency = bpsk_frequency;
@@ -642,11 +688,14 @@ void EPIRBTXAppView::load_beacons() {
             Beacon beacon{};
             beacon.title = trim(cols[0]);
             beacon.description = trim(cols[1]);
-            // Make sure frame is not longer tha 18 bytes / 36 hex character
-            beacon.frame = trim(cols[2]).substr(0, 36);
+            // 1G uses up to 36 hex chars, 2G uses 64 hex chars (250 bits rounded to 32 bytes).
+            beacon.frame = trim(cols[2]).substr(0, BEACON_HEXA_SIZE_SGB);
             size_t size = beacon.frame.size();
             if (size <= 0)
                 continue;  // Invalid line.
+            if ((size % 2) != 0) {
+                beacon.frame = "0" + beacon.frame;  // Pad with leading 0 to make it even length
+            }
             // Beacon is valid, add it to the list
             beacons.emplace_back(std::move(beacon));
         }

firmware/application/external/epirb_tx/ui_epirb_tx.hpp

@@ -33,9 +33,12 @@
 #include "message.hpp"
 #include "tonesets.hpp"
 
-#define BEACON_HEXA_SIZE 36
-#define BEACON_HEXA_HALF_SIZE 18
-#define BEACON_SIZE 18
+#define BEACON_SIZE_FGB 18
+#define BEACON_SIZE_SGB 32
+#define BEACON_HEXA_SIZE_FGB BEACON_SIZE_FGB * 2
+#define BEACON_HEXA_SIZE_SGB BEACON_SIZE_SGB * 2
+#define BEACON_HEXA_SPLIT_FGB 18
+#define BEACON_HEXA_SPLIT_SGB 22
 
 #define AM_TEST_FREQUENCY 121375000
 #define AM_REAL_FREQUENCY 121500000
@@ -49,6 +52,7 @@
 #define BPSK_FREQUENCY_K 406052000
 #define BPSK_FREQUENCY_N 406061000
 #define BPSK_FREQUENCY_O 406064000
+#define BPSK_FREQUENCY_SGB 406050000
 
 namespace ui::external_app::epirb_tx {
 
@@ -85,7 +89,8 @@ enum class BpskChannel {
     K = 6,
     N = 7,
     O = 8,
-    MANUAL = 10
+    MANUAL = 10,
+    SGB = 100
 };
 
 struct Location {
@@ -129,7 +134,7 @@ class EPIRBTXAppView : public View {
     void on_timer();
     void load_beacons();
     void set_tx_button_state(bool active);
-    std::string frame_to_hex_string(bool start);
+    std::string frame_to_hex_string_range(int offset_bytes, int count_bytes);
     void generate_frame(BeaconParams params);
     void update_frame(bool updateConfig = true);
     void update_bpsk_frequency();
@@ -214,6 +219,7 @@ class EPIRBTXAppView : public View {
             {"country"sv, &beacon_country},
             {"internal"sv, &beacon_internal},
             {"locator"sv, &locator},
+            {"sgb"sv, &format_sgb},
         }};
 
     // Time of the last sent frame
@@ -224,6 +230,10 @@ class EPIRBTXAppView : public View {
     bool transmitting_bpsk{false};
     // True when currently looping on sending beacons
     bool loop{false};
+    // True when SGB (Second Generation Beacon) format is selected
+    bool format_sgb{false};
+    // System time (ms) when the current SGB transmission session started
+    uint32_t sgb_start_time{0};
 
     // Current EPIRBTXDataMessage for baseband
     EPIRBTXDataMessage epirb_tx_message{};
@@ -302,10 +312,17 @@ class EPIRBTXAppView : public View {
          {"PLB", (uint8_t)BeaconType::PLB}}};
     OptionsField options_beacon_protocol{
         {UI_POS_X(9 + 7), UI_POS_Y(1)},
-        30,
+        8,
         {{"User", (uint8_t)BeaconProtocol::USER},
          {"Standard", (uint8_t)BeaconProtocol::STANDARD},
          {"National", (uint8_t)BeaconProtocol::NATIONAL}}};
+    // Format selector (FGB / SGB) — manual mode only, same row as type/protocol
+    OptionsField options_format{
+        {UI_POS_X_RIGHT(4), UI_POS_Y(1)},
+        4,
+        {{"FGB", 0},
+         {"SGB", 1}}};
+
     OptionsField options_beacon_country{
         {UI_POS_X(9), UI_POS_Y(2)},
         7,
@@ -337,6 +354,9 @@ class EPIRBTXAppView : public View {
     Text text_frame_end{
         {UI_POS_X(6), UI_POS_Y(7), UI_POS_WIDTH_REMAINING(6), UI_POS_DEFAULT_HEIGHT},
         ""};
+    Text text_frame_sgb_end{
+        {UI_POS_X(6), UI_POS_Y(8), UI_POS_WIDTH_REMAINING(6), UI_POS_DEFAULT_HEIGHT},
+        ""};
 
     Text text_timeout{
         {UI_POS_X(14), UI_POS_Y(10), UI_POS_WIDTH(2), UI_POS_DEFAULT_HEIGHT},
@@ -389,6 +409,7 @@ class EPIRBTXAppView : public View {
          {"406.052 MHz (K)", (uint8_t)BpskChannel::K},
          {"406.061 MHz (N)", (uint8_t)BpskChannel::N},
          {"406.064 MHz (O)", (uint8_t)BpskChannel::O},
+         {"406.050 MHz (SGB)", (uint8_t)BpskChannel::SGB},
          {"Manual", (uint8_t)BpskChannel::MANUAL}}};
 
     // Transmitter view

firmware/application/external/external.cmake

@@ -133,6 +133,14 @@ set(EXTCPPSRC
 	external/noaaapt_rx/main.cpp
 	external/noaaapt_rx/ui_noaaapt_rx.cpp
 
+	#vor_rx
+	external/vor_rx/main.cpp
+	external/vor_rx/ui_vor_rx.cpp
+
+	#vor_tx
+	external/vor_tx/main.cpp
+	external/vor_tx/ui_vor_tx.cpp
+
 	#shoppingcart_lock 272 bytes
 	external/shoppingcart_lock/main.cpp
 	external/shoppingcart_lock/shoppingcart_lock.cpp
@@ -161,6 +169,7 @@ set(EXTCPPSRC
 	#mcu_temperature    112
 	external/mcu_temperature/main.cpp
 	external/mcu_temperature/mcu_temperature.cpp
+	external/mcu_temperature/temperature_logger.cpp
 
 	#fmradio  640
 	external/fmradio/main.cpp
@@ -327,7 +336,7 @@ set(EXTCPPSRC
 	external/rtty_tx/ui_rtty_tx.cpp
 	external/rtty_tx/baudot.cpp
 
-    #pocsag_tx
+	#pocsag_tx
 	external/pocsag_tx/main.cpp
 	external/pocsag_tx/ui_pocsag_tx.cpp
 
@@ -362,6 +371,26 @@ set(EXTCPPSRC
 	#hard_reset
 	external/hard_reset/main.cpp
 	external/hard_reset/ui_hard_reset.cpp
+
+	#secplustx
+	external/secplustx/main.cpp
+	external/secplustx/ui_secplustx.cpp
+	external/secplustx/secplustx.cpp
+
+  #signal_hunter
+  external/signal_hunter/main.cpp
+  external/signal_hunter/ui_signal_hunter.cpp
+
+
+	#tetra rx
+	external/tetra_rx/main.cpp
+	external/tetra_rx/ui_tetra_rx.cpp
+	external/tetra_rx/tetra_crc.cpp
+	external/tetra_rx/tetra_descrambler.cpp
+	external/tetra_rx/tetra_interleave.cpp
+	external/tetra_rx/tetra_rcpc.cpp
+	external/tetra_rx/tetra_viterbi.cpp
+
 )
 
 set(EXTAPPLIST
@@ -396,6 +425,8 @@ set(EXTAPPLIST
 	acars_rx
 	wefax_rx
 	noaaapt_rx
+	vor_rx
+	vor_tx
 	shoppingcart_lock
 	ookbrute
 	ook_editor
@@ -451,6 +482,9 @@ set(EXTAPPLIST
 	two_tone_pager
 	two_tone_rx
 	hard_reset
+	secplustx
+  signal_hunter
+	tetra_rx
 )
 
 # sdusb has type conflicts with PRALINE (HackRF Pro) - add only for non-PRALINE builds

firmware/application/external/external.ld

@@ -110,6 +110,11 @@ MEMORY
     ram_external_app_two_tone_rx           (rwx) : org = 0xAE050000, len = 32k
     ram_external_app_flex_tx               (rwx) : org = 0xAE060000, len = 32k
     ram_external_app_hard_reset            (rwx) : org = 0xAE070000, len = 32k
+    ram_external_app_secplustx             (rwx) : org = 0xAE080000, len = 32k
+    ram_external_app_vor_rx                (rwx) : org = 0xAE090000, len = 32k
+    ram_external_app_vor_tx                (rwx) : org = 0xAE0A0000, len = 32k
+    ram_external_app_signal_hunter         (rwx) : org = 0xAE0B0000, len = 32k
+    ram_external_app_tetra_rx              (rwx) : org = 0xAE0C0000, len = 32k
 }
 
 SECTIONS
@@ -390,6 +395,18 @@ SECTIONS
         *(*ui*external_app*noaaapt_rx*);
     } > ram_external_app_noaaapt_rx
 
+    .external_app_vor_rx : ALIGN(4) SUBALIGN(4)
+    {
+        KEEP(*(.external_app.app_vor_rx.application_information));
+        *(*ui*external_app*vor_rx*);
+    } > ram_external_app_vor_rx
+
+    .external_app_vor_tx : ALIGN(4) SUBALIGN(4)
+    {
+        KEEP(*(.external_app.app_vor_tx.application_information));
+        *(*ui*external_app*vor_tx*);
+    } > ram_external_app_vor_tx
+
     .external_app_breakout : ALIGN(4) SUBALIGN(4)
     {
         KEEP(*(.external_app.app_breakout.application_information));
@@ -635,4 +652,25 @@ SECTIONS
         KEEP(*(.external_app.app_hard_reset.application_information));
         *(*ui*external_app*hard_reset*);
     } > ram_external_app_hard_reset
+
+    .external_app_secplustx : ALIGN(4) SUBALIGN(4)
+    {
+        KEEP(*(.external_app.app_secplustx.application_information));
+        *(*ui*external_app*secplustx*);
+    } > ram_external_app_secplustx
+
+    .external_app_signal_hunter : ALIGN(4) SUBALIGN(4)
+    {
+      KEEP(*(.external_app.app_signal_hunter.application_information));
+      *(*ui*external_app*signal_hunter*);
+    } > ram_external_app_signal_hunter
+
+    .external_app_tetra_rx : ALIGN(4) SUBALIGN(4)
+    {
+        KEEP(*(.external_app.app_tetra_rx.application_information));
+        *(*ui*external_app*tetra_rx*);
+    } > ram_external_app_tetra_rx
+
+
+
 }

firmware/application/external/font_viewer/ui_font_viewer.cpp

@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2023 Mark Thompson
- * copyleft 2024 zxkmm AKA zix aka sommermorgentraum
+ * copyleft 2024 zxkmm
  *
  * This file is part of PortaPack.
  *

firmware/application/external/font_viewer/ui_font_viewer.hpp

@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2023 Mark Thompson
- * copyleft 2024 zxkmm AKA zix aka sommermorgentraum
+ * copyleft 2024 zxkmm
  *
  * This file is part of PortaPack.
  *

firmware/application/external/game2048/ui_game2048.cpp

@@ -1,5 +1,5 @@
 /*
- * copyleft 2025 zxkmm AKA zix aka sommermorgentraum
+ * copyleft 2025 zxkmm
  *
  * This file is part of PortaPack.
  *

firmware/application/external/game2048/ui_game2048.hpp

@@ -1,5 +1,5 @@
 /*
- * copyleft 2025 zxkmm AKA zix aka sommermorgentraum
+ * copyleft 2025 zxkmm
  *
  * This file is part of PortaPack.
  *

firmware/application/external/hopper/ui_hopper.cpp

@@ -2,7 +2,7 @@
  * Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
  * Copyright (C) 2016 Furrtek
  * Copyright (C) 2020 euquiq
- * copyleft 2024 zxkmm AKA zix aka sommermorgentraum
+ * copyleft 2024 zxkmm
  *
  * This file is part of PortaPack.
  *

firmware/application/external/hopper/ui_hopper.hpp

@@ -2,7 +2,7 @@
  * Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
  * Copyright (C) 2016 Furrtek
  * Copyright (C) 2020 euquiq
- * copyleft 2024 zxkmm AKA zix aka sommermorgentraum
+ * copyleft 2024 zxkmm
  *
  * This file is part of PortaPack.
  *

firmware/application/external/mcu_temperature/mcu_temperature.cpp

@@ -8,14 +8,12 @@ using namespace portapack;
 namespace ui::external_app::mcu_temperature {
 
 void McuTemperatureWidget::paint(Painter& painter) {
-    const auto logger = portapack::temperature_logger;
-
     const auto rect = screen_rect();
     const Color color_background{0, 0, 64};
     const Color color_foreground = Theme::getInstance()->fg_green->foreground;
     const Color color_reticle{128, 128, 128};
 
-    const auto graph_width = static_cast<int>(logger.capacity()) * bar_width;
+    const auto graph_width = static_cast<int>(temperature_logger.capacity()) * bar_width;
     const Rect graph_rect{
         rect.left() + (rect.width() - graph_width) / 2, rect.top() + 8,
         graph_width, rect.height()};
@@ -25,7 +23,7 @@ void McuTemperatureWidget::paint(Painter& painter) {
     painter.draw_rectangle(frame_rect, color_reticle);
     painter.fill_rectangle(graph_rect, color_background);
 
-    const auto history = logger.history();
+    const auto history = temperature_logger.history();
     for (size_t i = 0; i < history.size(); i++) {
         const Coord x = graph_rect.right() - (history.size() - i) * bar_width;
         const auto sample = history[i];

firmware/application/external/mcu_temperature/mcu_temperature.hpp

@@ -32,7 +32,7 @@
 #include "portapack.hpp"
 #include "memory_map.hpp"
 #include "irq_controls.hpp"
-
+#include "temperature_logger.hpp"
 #include <functional>
 #include <utility>
 
@@ -43,14 +43,25 @@ class McuTemperatureWidget : public Widget {
     explicit McuTemperatureWidget(
         Rect parent_rect)
         : Widget{parent_rect} {
+        signal_token_tick_second = rtc_time::signal_tick_second += [this]() {
+            this->on_tick_second();
+        };
+    }
+    ~McuTemperatureWidget() {
+        rtc_time::signal_tick_second -= signal_token_tick_second;
+    }
+    void on_tick_second() {
+        temperature_logger.second_tick();
+        set_dirty();
     }
-
     void paint(Painter& painter) override;
 
    private:
+    TemperatureLogger temperature_logger{};
+
     using sample_t = uint32_t;
     using temperature_t = int32_t;
-
+    SignalToken signal_token_tick_second{};
     temperature_t temperature(const sample_t sensor_value) const;
     Coord screen_y(const temperature_t temperature, const Rect& screen_rect) const;
 

firmware/application/external/mcu_temperature/temperature_logger.cpp

@@ -25,6 +25,8 @@
 
 #include <algorithm>
 
+namespace ui::external_app::mcu_temperature {
+
 void TemperatureLogger::second_tick() {
     sample_phase++;
     if (sample_phase >= sample_interval) {
@@ -67,3 +69,5 @@ void TemperatureLogger::push_sample(const TemperatureLogger::sample_t sample) {
     samples_count++;
     sample_phase = 0;
 }
+
+}  // namespace ui::external_app::mcu_temperature

firmware/application/external/mcu_temperature/temperature_logger.hpp

@@ -27,6 +27,8 @@
 #include <array>
 #include <vector>
 
+namespace ui::external_app::mcu_temperature {
+
 class TemperatureLogger {
    public:
     using sample_t = int8_t;
@@ -49,4 +51,6 @@ class TemperatureLogger {
     void push_sample(const sample_t sample);
 };
 
+}  // namespace ui::external_app::mcu_temperature
+
 #endif /*__TEMPERATURE_LOGGER_H__*/

firmware/application/external/metronome/ui_metronome.cpp

@@ -1,5 +1,5 @@
 /*
- * copyleft 2024 zxkmm AKA zix aka sommermorgentraum
+ * copyleft 2024 zxkmm
  *
  * This file is part of PortaPack.
  *

firmware/application/external/metronome/ui_metronome.hpp

@@ -1,5 +1,5 @@
 /*
- * copyleft 2024 zxkmm AKA zix aka sommermorgentraum
+ * copyleft 2024 zxkmm
  *
  * This file is part of PortaPack.
  *

firmware/application/external/ook_editor/ui_ook_editor.cpp

@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2024 Samir Sánchez Garnica @sasaga92
- * copyleft 2024 zxkmm AKA zix aka sommermorgentraum
+ * copyleft 2024 zxkmm
 
  *
  * This file is part of PortaPack.

firmware/application/external/ook_editor/ui_ook_editor.hpp

@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2024 Samir Sánchez Garnica @sasaga92
- * copyleft 2024 zxkmm AKA zix aka sommermorgentraum
+ * copyleft 2024 zxkmm
  *
  * This file is part of PortaPack.
  *

firmware/application/external/ookbrute/ui_ookbrute.cpp

@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2024 HTotoo
- * copyleft 2024 zxkmm AKA zix aka sommermorgentraum
+ * copyleft 2024 zxkmm
  *
  * This file is part of PortaPack.
  *

firmware/application/external/ookbrute/ui_ookbrute.hpp

@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2024 HTotoo
- * copyleft 2024 zxkmm AKA zix aka sommermorgentraum
+ * copyleft 2024 zxkmm
  *
  * This file is part of PortaPack.
  *

firmware/application/external/playlist_editor/ui_playlist_editor.cpp

@@ -1,5 +1,5 @@
 /*
- * copyleft 2025 zxkmm AKA zix aka sommermorgentraum
+ * copyleft 2025 zxkmm
  *
  * This file is part of PortaPack.
  *

firmware/application/external/playlist_editor/ui_playlist_editor.hpp

@@ -1,5 +1,5 @@
 /*
- * copyleft 2025 zxkmm AKA zix aka sommermorgentraum
+ * copyleft 2025 zxkmm
  *
  * This file is part of PortaPack.
  *

firmware/application/external/secplustx/main.cpp

@@ -0,0 +1,81 @@
+/*
+ * Copyright (C) 2026 Synray
+ *
+ * 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_navigation.hpp"
+#include "ui_secplustx.hpp"
+#include "external_app.hpp"
+
+namespace ui::external_app::ui_secplustx {
+void initialize_app(ui::NavigationView& nav) {
+    nav.push<SecplusTXView>();
+}
+}  // namespace ui::external_app::ui_secplustx
+
+extern "C" {
+
+__attribute__((section(".external_app.app_secplustx.application_information"), used)) application_information_t _application_information_secplustx = {
+    /*.memory_location = */ (uint8_t*)0x00000000,
+    /*.externalAppEntry = */ ui::external_app::ui_secplustx::initialize_app,
+    /*.header_version = */ CURRENT_HEADER_VERSION,
+    /*.app_version = */ VERSION_MD5,
+    /*.app_name = */ "Security+",
+    /*.bitmap_data = */ {
+        0b00100000,
+        0b00000000,
+        0b00100000,
+        0b00100000,
+        0b00100000,
+        0b01110000,
+        0b00100000,
+        0b00100000,
+        0b11100000,
+        0b00000111,
+        0b11110000,
+        0b00001111,
+        0b00110000,
+        0b00001100,
+        0b00110000,
+        0b00001100,
+        0b11110000,
+        0b00001111,
+        0b11110000,
+        0b00001111,
+        0b01110000,
+        0b00001101,
+        0b10110000,
+        0b00001110,
+        0b01110000,
+        0b00001101,
+        0b10110000,
+        0b00001110,
+        0b11110000,
+        0b00001111,
+        0b11100000,
+        0b00000111,
+    },
+    /*.icon_color = */ ui::Color::yellow().v,
+    /*.menu_location = */ app_location_t::TX,
+    /*.desired_menu_position = */ -1,
+    /*.m4_app_tag = portapack::spi_flash::image_tag_ook */ {'P', 'O', 'O', 'K'},
+    /*.m4_app_offset = */ 0x00000000,  // will be filled at compile time
+};
+}

firmware/application/external/secplustx/secplustx.cpp

@@ -0,0 +1,150 @@
+/*
+ * Copyright 2022 Clayton Smith (argilo@gmail.com)
+ *
+ * This file is part of secplus.
+ *
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ *
+ */
+
+#include "secplustx.hpp"
+
+namespace ui::external_app::ui_secplustx {
+
+static void v2_calc_parity(const uint64_t fixed, uint32_t* data) {
+    uint32_t parity = (fixed >> 32) & 0xf;
+    int8_t offset;
+
+    *data &= 0xffff0fff;
+    for (offset = 0; offset < 32; offset += 4) {
+        parity ^= ((*data >> offset) & 0xf);
+    }
+    *data |= (parity << 12);
+}
+
+static void encode_v2_rolling(const uint32_t rolling,
+                              uint32_t* rolling_halves) {
+    uint32_t rolling_reversed = 0;
+    int8_t i, half;
+
+    for (i = 0; i < 28; i++) {
+        rolling_reversed |= ((rolling >> i) & 1) << (28 - i - 1);
+    }
+
+    rolling_halves[0] = 0;
+    rolling_halves[1] = 0;
+
+    for (half = 0; half < 2; half++) {
+        for (i = 0; i < 8; i += 2) {
+            rolling_halves[half] |= rolling_reversed % 3 << i;
+            rolling_reversed /= 3;
+        }
+    }
+
+    for (half = 0; half < 2; half++) {
+        for (i = 10; i < 18; i += 2) {
+            rolling_halves[half] |= rolling_reversed % 3 << i;
+            rolling_reversed /= 3;
+        }
+    }
+
+    rolling_halves[0] |= (rolling_reversed % 3) << 8;
+    rolling_reversed /= 3;
+
+    rolling_halves[1] |= (rolling_reversed % 3) << 8;
+}
+
+static const int8_t ORDER[16] = {9, 33, 6, -1, 24, 18, 36, -1,
+                                 24, 36, 6, -1, -1, -1, -1, -1};
+static const int8_t INVERT[16] = {6, 2, 1, -1, 7, 5, 3, -1,
+                                  4, 0, 5, -1, -1, -1, -1, -1};
+
+static void v2_scramble(const uint32_t* parts, const uint8_t frame_type, uint8_t* packet_half) {
+    const int8_t order = ORDER[packet_half[0] >> 4];
+    const int8_t invert = INVERT[packet_half[0] & 0xf];
+    int8_t i;
+    uint8_t out_offset = 10;
+    int8_t end;
+    uint32_t parts_permuted[3];
+
+    end = (frame_type == 0 ? 5 : 8);
+    for (i = 1; i < end; i++) {
+        packet_half[i] = 0;
+    }
+
+    parts_permuted[0] =
+        (invert & 4) ? ~parts[(order >> 4) & 3] : parts[(order >> 4) & 3];
+    parts_permuted[1] =
+        (invert & 2) ? ~parts[(order >> 2) & 3] : parts[(order >> 2) & 3];
+    parts_permuted[2] = (invert & 1) ? ~parts[order & 3] : parts[order & 3];
+
+    end = (frame_type == 0 ? 8 : 0);
+    for (i = 18 - 1; i >= end; i--) {
+        packet_half[out_offset >> 3] |= ((parts_permuted[0] >> i) & 1)
+                                        << (7 - (out_offset % 8));
+        out_offset++;
+        packet_half[out_offset >> 3] |= ((parts_permuted[1] >> i) & 1)
+                                        << (7 - (out_offset % 8));
+        out_offset++;
+        packet_half[out_offset >> 3] |= ((parts_permuted[2] >> i) & 1)
+                                        << (7 - (out_offset % 8));
+        out_offset++;
+    }
+}
+
+static void encode_v2_half_parts(const uint32_t rolling, const uint32_t fixed, const uint16_t data, const uint8_t frame_type, uint8_t* packet_half) {
+    uint32_t parts[3];
+
+    parts[0] = ((fixed >> 10) << 8) | (data >> 8);
+    parts[1] = ((fixed & 0x3ff) << 8) | (data & 0xff);
+    parts[2] = rolling;
+
+    packet_half[0] = (uint8_t)rolling;
+
+    v2_scramble(parts, frame_type, packet_half);
+}
+
+static int8_t v2_check_limits(const uint32_t rolling, const uint64_t fixed) {
+    if ((rolling >> 28) != 0) {
+        return -1;
+    }
+
+    if ((fixed >> 40) != 0) {
+        return -1;
+    }
+
+    return 0;
+}
+
+static void encode_v2_half(const uint32_t rolling, const uint32_t fixed, const uint16_t data, const uint8_t frame_type, uint8_t* packet_half) {
+    encode_v2_half_parts(rolling, fixed, data, frame_type, packet_half);
+
+    /* shift indicator two bits to the right */
+    packet_half[1] |= (packet_half[0] & 0x3) << 6;
+    packet_half[0] >>= 2;
+
+    /* set frame type */
+    packet_half[0] |= (frame_type << 6);
+}
+
+int8_t encode_v2(const uint32_t rolling, const uint64_t fixed, uint32_t data, const uint8_t frame_type, uint8_t* packet1, uint8_t* packet2) {
+    int8_t err = 0;
+    uint32_t rolling_halves[2];
+
+    err = v2_check_limits(rolling, fixed);
+    if (err < 0) {
+        return err;
+    }
+
+    encode_v2_rolling(rolling, rolling_halves);
+    v2_calc_parity(fixed, &data);
+
+    encode_v2_half(rolling_halves[0], fixed >> 20, data >> 16, frame_type,
+                   packet1);
+    encode_v2_half(rolling_halves[1], fixed & 0xfffff, data & 0xffff, frame_type,
+                   packet2);
+
+    return 0;
+}
+
+};  // namespace ui::external_app::ui_secplustx

firmware/application/external/secplustx/secplustx.hpp

@@ -0,0 +1,19 @@
+/*
+ * Copyright 2022 Clayton Smith (argilo@gmail.com)
+ *
+ * This file is part of secplus.
+ *
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ *
+ */
+
+#ifndef __SECPLUSTX__
+#define __SECPLUSTX__
+
+#include <cstdint>
+
+namespace ui::external_app::ui_secplustx {
+int8_t encode_v2(const uint32_t rolling, const uint64_t fixed, uint32_t data, const uint8_t frame_type, uint8_t* packet1, uint8_t* packet2);
+};
+
+#endif

firmware/application/external/secplustx/ui_secplustx.cpp

@@ -0,0 +1,227 @@
+#include "ui_secplustx.hpp"
+
+#include <string_view>
+#include <string>
+#include <utility>
+#include <vector>
+
+#include "secplustx.hpp"
+#include "ui_fileman.hpp"
+#include "file_reader.hpp"
+#include "baseband_api.hpp"
+#include "string_format.hpp"
+#include "optional.hpp"
+
+using namespace portapack;
+using namespace ui;
+
+namespace fs = std::filesystem;
+
+namespace ui::external_app::ui_secplustx {
+
+static constexpr uint8_t secplus_repeat_count = 3;
+static constexpr float secplus_sample_rate = OOK_SAMPLERATE / 4000.0f;
+
+Optional<SecplusData> SecplusTXView::read_secplus_file(const fs::path& file_path) {
+    File file{};
+    if (auto error = file.open(file_path)) return {};
+
+    std::string raw = *FileLineReader{file}.begin();
+    std::vector chunks = split_string(raw, ';');
+    if (chunks.empty()) return {};
+
+    SecplusData data{};
+    data.version = static_cast<SecplusVersion>(std::strtoul(chunks[0].data(), NULL, 10));
+    switch (data.version) {
+        case SecplusVersion::V1:
+            return {};  // unimplemented
+        case SecplusVersion::V2: {
+            if (chunks.size() != 6) return {};
+            data.name = std::string{chunks[1]};
+            if (data.name.empty()) data.name = "Remote";
+            data.has_data = std::strtoul(chunks[2].data(), NULL, 10);
+            data.fixed_code = std::strtoull(chunks[3].data(), NULL, 16);
+            data.rolling_code = std::strtoul(chunks[4].data(), NULL, 16);
+            data.data = std::strtoul(chunks[5].data(), NULL, 16);
+            return data;
+        }
+        default:
+            return {};
+    }
+}
+
+bool SecplusTXView::write_secplus_file(const fs::path& file_path, const SecplusData& data) {
+    ensure_directory(secplus_dir);
+    File file{};
+    if (auto error = file.create(file_path)) {
+        return false;
+    }
+
+    switch (data.version) {
+        case SecplusVersion::V1:
+            return false;  // unimplemented
+        case SecplusVersion::V2: {
+            std::string formatted = to_string_dec_uint(static_cast<uint8_t>(data.version));
+            formatted += ';';
+            formatted += data.name;
+            formatted += ';';
+            formatted += to_string_dec_uint(data.has_data);
+            formatted += ';';
+            formatted += to_string_hex(data.fixed_code);
+            formatted += ';';
+            formatted += to_string_hex(data.rolling_code);
+            formatted += ';';
+            formatted += to_string_hex(data.data);
+            file.write_line(formatted);
+            file.close();
+            return true;
+        }
+        default:
+            return false;
+    }
+}
+
+SecplusTXView::SecplusTXView(NavigationView& nav)
+    : nav_{nav} {
+    if (!fs::file_exists(file_path)) write_secplus_file(file_path, data);
+    baseband::run_image(portapack::spi_flash::image_tag_ook);
+
+    add_children({&button_open,
+                  &button_save,
+                  &field_name,
+                  &labels,
+                  &field_fixed,
+                  &field_rolling,
+                  &has_data,
+                  &field_data,
+                  &learn_mode,
+                  &autosave,
+                  &progressbar,
+                  &tx_view});
+
+    button_open.on_select = [this](const Button&) {
+        ensure_directory(secplus_dir);
+        auto open_view = nav_.push<FileLoadView>(".SECPLUS");
+        open_view->push_dir(secplus_dir);
+        open_view->on_changed = [this](fs::path path) { file_path = path.string(); };
+        nav_.set_on_pop([this]() { reload_data(); });
+    };
+    button_save.on_select = [this](const Button&) { write_secplus_file(file_path, data); };
+
+    field_name.on_select = [this, &nav](TextField&) {
+        buffer = data.name;
+        text_prompt(nav_, buffer, field_name.parent_rect().width() / UI_POS_DEFAULT_WIDTH, ENTER_KEYBOARD_MODE_ALPHA, [this](std::string& new_name) {
+            data.name = new_name;
+            field_name.set_text(new_name);
+            save_data();
+        });
+    };
+    field_fixed.on_change = [this](SymField& field) { data.fixed_code = field.to_integer(); };
+    field_rolling.on_change = [this](SymField& field) { data.rolling_code = field.to_integer(); };
+    field_data.on_change = [this](SymField& field) { data.data = field.to_integer(); };
+    has_data.on_select = [this](Checkbox& checkbox, bool value) {
+        data.has_data = value;
+        // fade if inactive, otherwise use default style
+        const Style* new_style = value ? &style() : Theme::getInstance()->fg_medium;
+        checkbox.set_style(new_style);
+        field_data.set_style(new_style);
+        field_data.set_focusable(value);
+    };
+    tx_view.on_edit_frequency = [this]() {
+        auto new_view = nav_.push<FrequencyKeypadView>(transmitter_model.target_frequency());
+        new_view->on_changed = [](rf::Frequency f) {
+            transmitter_model.set_target_frequency(f);
+        };
+    };
+
+    tx_view.on_start = [this]() { start_tx(); };
+    tx_view.on_stop = [this]() {
+        baseband::kill_ook();
+        stop_tx();
+    };
+
+    autosave.set_value(true);
+    reload_data();
+}
+
+void SecplusTXView::save_data() {
+    if (autosave.value()) write_secplus_file(file_path, data);
+}
+
+void SecplusTXView::reload_data() {
+    if (auto result = read_secplus_file(file_path)) data = std::move(*result);
+    // always update data, use default values if read failed
+    field_name.set_text(data.name);
+    has_data.set_value(data.has_data);
+    field_rolling.set_value(data.rolling_code);
+    field_fixed.set_value(data.fixed_code);
+    field_data.set_value(data.data);
+}
+
+void SecplusTXView::start_tx() {
+    uint8_t packet1[8]{};
+    uint8_t packet2[8]{};
+    size_t bitstream_length = 0;
+
+    constexpr uint8_t packet1_indicator = 0b00;
+    constexpr uint8_t packet2_indicator = 0b01;
+    auto encode_packet = [&bitstream_length](uint8_t indicator, auto& packet, bool has_data) {
+        constexpr uint32_t preamble = 0b0000000000000000'1111;
+        constexpr uint32_t blank_size = 24;
+        auto manchester_encode = [&bitstream_length](auto& x, uint32_t size) {
+            for (uint32_t i = 0; i < size; ++i) {
+                bool bit = (x >> (size - 1 - i)) & 1;
+                encoders::bitstream_append(bitstream_length, 2, bit ? 0b01 : 0b10);
+            }
+        };
+        manchester_encode(preamble, 20);
+        manchester_encode(indicator, 2);
+        for (uint8_t byte = 0; byte < (has_data ? 8 : 5); ++byte) manchester_encode(packet[byte], 8);
+        encoders::bitstream_append(bitstream_length, blank_size, 0);
+    };
+
+    if (encode_v2(data.rolling_code, data.fixed_code, data.data, data.has_data, packet1, packet2) < 0) {
+        nav_.display_modal("Error", "Invalid rolling/fixed code");
+        return;
+    }
+    encode_packet(packet1_indicator, packet1, has_data.value());
+    encode_packet(packet2_indicator, packet2, has_data.value());
+
+    if (!learn_mode.value()) {
+        field_rolling.set_value(++data.rolling_code);
+        field_rolling.set_dirty();
+    }
+
+    progressbar.set_max(secplus_repeat_count);
+    progressbar.set_value(1);
+
+    tx_view.set_transmitting(true);
+    transmitter_model.enable();
+    baseband::set_ook_data(
+        bitstream_length,
+        secplus_sample_rate,
+        secplus_repeat_count,
+        0);
+}
+
+void SecplusTXView::stop_tx() {
+    transmitter_model.disable();
+    progressbar.set_value(0);
+    tx_view.set_transmitting(false);
+}
+
+void SecplusTXView::on_tx_progress(uint32_t progress, bool done) {
+    progressbar.set_value(progress + 1);
+    if (done) {
+        stop_tx();
+        save_data();
+    }
+}
+
+SecplusTXView::~SecplusTXView() {
+    transmitter_model.disable();
+    baseband::shutdown();
+    save_data();
+}
+
+}  // namespace ui::external_app::ui_secplustx

firmware/application/external/secplustx/ui_secplustx.hpp

@@ -0,0 +1,96 @@
+#ifndef __UI_SECPLUSTX__
+#define __UI_SECPLUSTX__
+
+#include <cstdint>
+#include <string>
+
+#include "ui.hpp"
+#include "file.hpp"
+#include "ui_transmitter.hpp"
+#include "transmitter_model.hpp"
+#include "file_path.hpp"
+#include "app_settings.hpp"
+#include "radio_state.hpp"
+#include "encoders.hpp"
+#include "string_format.hpp"
+
+namespace ui::external_app::ui_secplustx {
+
+enum class SecplusVersion : uint8_t {
+    V1,
+    V2,
+};
+
+struct SecplusData {
+    SecplusVersion version;
+    std::string name;
+    bool has_data;
+    uint64_t fixed_code;
+    uint32_t rolling_code;
+    uint32_t data;
+};
+
+class SecplusTXView : public View {
+   public:
+    void focus() override { button_open.focus(); }
+    SecplusTXView(NavigationView& nav);
+    ~SecplusTXView();
+
+    std::string title() const override {
+        return "Security+";
+    }
+
+   private:
+    std::string file_path = (secplus_dir / "DEFAULT.SECPLUS").string();
+    SecplusData data{SecplusVersion::V2, "Remote", false, 0, 0, 0};
+    std::string buffer{};
+
+    NavigationView& nav_;
+    TxRadioState radio_state_{
+        315000000,
+        1750000,
+        OOK_SAMPLERATE};
+
+    app_settings::SettingsManager settings_{"tx_secplus", app_settings::Mode::TX, {{"file_path"sv, &file_path}}};
+
+    Button button_open{{UI_POS_X(1), UI_POS_Y(1), screen_width / 2 - UI_POS_X(1), UI_POS_HEIGHT(2)}, "Open"};
+    Button button_save{{screen_width / 2, UI_POS_Y(1), screen_width / 2 - UI_POS_X(1), UI_POS_HEIGHT(2)}, "Save"};
+
+    // remote data
+    TextField field_name{{UI_POS_X(1), UI_POS_Y(3), UI_POS_WIDTH_REMAINING(2), UI_POS_HEIGHT(1)}, "Remote"};
+    Labels labels{
+        {{UI_POS_X(1), UI_POS_Y(4)}, "Fixed:", Theme::getInstance()->fg_medium->foreground},
+        {{UI_POS_X(1), UI_POS_Y(5)}, "Rolling:", Theme::getInstance()->fg_medium->foreground}};
+    SymField field_fixed{{UI_POS_X(10), UI_POS_Y(4)}, 10, SymField::Type::Hex, true};
+    SymField field_rolling{{UI_POS_X(10), UI_POS_Y(5)}, 7, SymField::Type::Hex, true};
+    Checkbox has_data{{UI_POS_X(1), UI_POS_Y(6)}, 5, "Data:", true};
+    SymField field_data{{UI_POS_X(10), UI_POS_Y(6)}, 8, SymField::Type::Hex, true};
+
+    // options
+    Checkbox learn_mode{{UI_POS_X(1), UI_POS_Y(7)}, 5, "Learn", true};
+    Checkbox autosave{{UI_POS_X(1), UI_POS_Y(8)}, 8, "Autosave", true};
+
+    ProgressBar progressbar{{UI_POS_X(2), UI_POS_Y_BOTTOM(5.75), UI_POS_WIDTH_REMAINING(4), UI_POS_HEIGHT(1)}};
+
+    TransmitterView tx_view{UI_POS_Y_BOTTOM(4), 1000000, 0};
+
+    Optional<SecplusData> read_secplus_file(const std::filesystem::path& file_path);
+    bool write_secplus_file(const std::filesystem::path& file_path, const SecplusData& data);
+    void save_data();
+    void reload_data();
+    void start_tx();
+    void stop_tx();
+
+    void on_tx_progress(uint32_t progress, bool done);
+
+    MessageHandlerRegistration message_handler_tx_progress{
+        Message::ID::TXProgress,
+        [this](const Message* const p) {
+            const auto message = *reinterpret_cast<const TXProgressMessage*>(p);
+            this->on_tx_progress(message.progress, message.done);
+        }};
+};
+
+}  // namespace ui::external_app::ui_secplustx
+
+#endif

firmware/application/external/signal_hunter/main.cpp

@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2026 Matej Sochan
+ *
+ * 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_signal_hunter.hpp"
+#include "ui_navigation.hpp"
+#include "external_app.hpp"
+
+namespace ui::external_app::signal_hunter {
+void initialize_app(ui::NavigationView& nav) {
+    nav.push<SignalHunterAppView>();
+}
+}  // namespace ui::external_app::signal_hunter
+
+extern "C" {
+__attribute__((section(".external_app.app_signal_hunter.application_information"), used)) application_information_t _application_information_signal_hunter = {
+    /*.memory_location = */ (uint8_t*)0x00000000,
+    /*.externalAppEntry = */ ui::external_app::signal_hunter::initialize_app,
+    /*.header_version = */ CURRENT_HEADER_VERSION,
+    /*.app_version = */ VERSION_MD5,
+    /*.app_name = */ "SigHunter",
+    /*.bitmap_data = */ {0x80, 0x01, 0x80, 0x01, 0xE0, 0x07, 0xF0, 0x0F, 0x98, 0x19, 0x8C, 0x31, 0x84, 0x21, 0xFF, 0xFF, 0xFF, 0xFF, 0x84, 0x21, 0x8C, 0x31, 0x98, 0x19, 0xF0, 0x0F, 0xE0, 0x07, 0x80, 0x01, 0x80, 0x01},
+    /*.icon_color = */ ui::Color::green().v,
+    /*.menu_location = */ app_location_t::RX,
+    /*.desired_menu_position = */ -1,
+
+    /*.m4_app_tag = */ {'H', 'U', 'N', 'T'},
+    /*.m4_app_offset = */ 0x00000000,
+};
+}

firmware/application/external/signal_hunter/ui_signal_hunter.cpp

@@ -0,0 +1,403 @@
+/*
+ * Copyright (C) 2026 Matej Sochan
+ *
+ * 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_signal_hunter.hpp"
+#include "receiver_model.hpp"
+#include "baseband_api.hpp"
+#include "ui_fileman.hpp"
+#include "freqman_db.hpp"
+#include "string_format.hpp"
+#include "io_file.hpp"
+#include "rtc_time.hpp"
+
+using namespace portapack;
+
+namespace ui::external_app::signal_hunter {
+
+// --- TAB 1: Main View ---
+HunterMainView::HunterMainView(Rect parent_rect, SignalHunterAppView& parent)
+    : View(parent_rect), parent_app(parent) {
+    add_children({&text_current_freq, &text_status, &button_start_stop, &text_hits});
+    update_frequency(433920000);
+
+    button_start_stop.on_select = [this](Button&) {
+        parent_app.is_hunting = !parent_app.is_hunting;
+        if (parent_app.is_hunting) {
+            button_start_stop.set_text("STOP");
+            // Set initial frequency based on set mode (single freq / freq hopping)
+            if (parent_app.freq_hop_mode && !parent_app.frequency_list.empty()) {
+                parent_app.current_freq_index = 0;
+                auto freq = parent_app.frequency_list[0];
+                receiver_model.set_target_frequency(freq);
+                update_frequency(freq);
+            } else {
+                receiver_model.set_target_frequency(parent_app.single_frequency);
+                update_frequency(parent_app.single_frequency);
+            }
+            update_status("HUNTING...", Theme::getInstance()->fg_green);
+            parent_app.send_hunter_config(true);
+        } else {
+            button_start_stop.set_text("START");
+            update_status("IDLE", Theme::getInstance()->fg_light);
+            set_recording_state(false);
+            parent_app.send_hunter_config(false);
+        }
+    };
+}
+
+void HunterMainView::on_show() {
+    if (!parent_app.freq_hop_mode) {
+        current_freq_ = receiver_model.target_frequency();
+    }
+
+    update_frequency(current_freq_);  // force repaint
+}
+
+void HunterMainView::focus() {
+    if (!parent_app.freq_hop_mode) {
+        current_freq_ = receiver_model.target_frequency();
+    }
+
+    update_frequency(current_freq_);
+    button_start_stop.focus();
+}
+
+void HunterMainView::set_recording_state(bool recording) {
+    if (recording)
+        text_current_freq.set_style(Theme::getInstance()->fg_red);
+    else
+        text_current_freq.set_style(Theme::getInstance()->fg_light);
+
+    text_current_freq.set_dirty();    // force ui update
+    update_frequency(current_freq_);  // repaint with the new color
+}
+
+void HunterMainView::update_frequency(rf::Frequency freq) {
+    current_freq_ = freq;
+    text_current_freq.set(to_string_dec_uint(freq) + " Hz");
+}
+
+void HunterMainView::update_status(const std::string& status, const Style* style) {
+    text_status.set(status);
+    text_status.set_style(style);
+}
+
+void HunterMainView::update_hits(uint32_t hits) {
+    text_hits.set("Hits: " + to_string_dec_uint(hits));
+}
+
+// --- TAB 2: Freqs View ---
+HunterFreqsView::HunterFreqsView(Rect parent_rect, SignalHunterAppView& parent)
+    : View(parent_rect), parent_app(parent) {
+    add_children({&button_load_file,
+                  &button_clear,
+                  &labels,
+                  &field_dwell,
+                  &text_loaded_info});
+
+    field_dwell.set_value(parent_app.hop_dwell_ms);
+    field_dwell.on_change = [this](int32_t v) { parent_app.hop_dwell_ms = v; };
+
+    button_load_file.on_select = [this](Button&) {
+        auto* view = parent_app.get_nav().push<FileLoadView>(".TXT");
+        if (view) {
+            view->on_changed = [this](std::filesystem::path path) {
+                parent_app.frequency_list.clear();
+                parent_app.current_freq_index = 0;
+                FreqmanDB db{};
+                db.open(path);
+                for (const auto& entry : db) {
+                    if (entry.frequency_a > 0)
+                        parent_app.frequency_list.push_back(entry.frequency_a);
+                }
+                parent_app.freqman_file = path.stem().string();
+
+                // Switch to HOP mode if a file was loaded
+                if (!parent_app.frequency_list.empty())
+                    parent_app.freq_hop_mode = true;
+
+                update_list_count();
+
+                // Update the mode display in the Config tab
+                if (parent_app.get_config_view()) {
+                    parent_app.get_config_view()->update_mode_display();
+                }
+            };
+        }
+    };
+
+    button_clear.on_select = [this](Button&) {
+        parent_app.frequency_list.clear();
+        parent_app.current_freq_index = 0;
+        parent_app.freq_hop_mode = false;
+
+        update_list_count();
+
+        // Update the mode display in the Config tab
+        if (parent_app.get_config_view()) {
+            parent_app.get_config_view()->update_mode_display();
+        }
+    };
+}
+
+void HunterFreqsView::update_list_count() {
+    text_loaded_info.set("Loaded: " +
+                         to_string_dec_uint(parent_app.frequency_list.size()) + " freqs");
+}
+
+void HunterFreqsView::focus() {
+    button_load_file.focus();
+}
+
+// --- TAB 3: Config View ---
+HunterConfigView::HunterConfigView(Rect parent_rect, SignalHunterAppView& parent)
+    : View(parent_rect), parent_app(parent), field_single_freq{{UI_POS_X(2), UI_POS_Y(4)}, parent.get_nav()} {
+    add_children({&button_mode,
+                  &field_single_freq,
+                  &labels,
+                  &field_threshold,
+                  &field_hang_time,
+                  &text_info_config});
+
+    button_mode.on_select = [this](Button&) {
+        parent_app.freq_hop_mode = !parent_app.freq_hop_mode;
+        update_mode_display();
+    };
+
+    field_single_freq.set_value(parent_app.single_frequency);
+
+    field_threshold.set_value(parent_app.energy_threshold);
+    field_threshold.on_change = [this](int32_t v) { parent_app.energy_threshold = v; };
+
+    field_hang_time.set_value(parent_app.hangtime_ms);
+    field_hang_time.on_change = [this](int32_t v) { parent_app.hangtime_ms = v; };
+
+    update_mode_display();
+}
+
+void HunterConfigView::on_show() {
+    auto current = receiver_model.target_frequency();
+    parent_app.single_frequency = current;
+    field_single_freq.set_value(current);
+}
+
+void HunterConfigView::update_mode_display() {
+    if (parent_app.freq_hop_mode)
+        button_mode.set_text("MODE: HOP (" +
+                             to_string_dec_uint(parent_app.frequency_list.size()) + " freqs)");
+    else
+        button_mode.set_text("MODE: SINGLE");
+}
+
+void HunterConfigView::focus() {
+    field_threshold.focus();
+}
+
+// --- Main App View ---
+SignalHunterAppView::SignalHunterAppView(ui::NavigationView& nav)
+    : frequency_list{},
+      nav_(nav) {
+    baseband::run_prepared_image(portapack::memory::map::m4_code.base());
+
+    receiver_model.set_target_frequency(433920000);
+    receiver_model.set_baseband_bandwidth(1750000);
+    receiver_model.set_sampling_rate(2000000);
+    receiver_model.enable();
+
+    view_main = std::make_unique<HunterMainView>(content_rect, *this);
+    view_freqs = std::make_unique<HunterFreqsView>(content_rect, *this);
+    view_config = std::make_unique<HunterConfigView>(content_rect, *this);
+
+    tab_view = std::make_unique<TabView>(std::initializer_list<TabView::TabDef>{
+        {"Target", Color::cyan(), view_main.get()},
+        {"Freqs", Color::green(), view_freqs.get()},
+        {"Config", Color::yellow(), view_config.get()}});
+    tab_view->set_parent_rect(view_rect);
+
+    add_children({&field_lna,
+                  &field_vga,
+                  &field_rf_amp,
+                  &rssi,
+                  tab_view.get(),
+                  view_main.get(),
+                  view_freqs.get(),
+                  view_config.get()});
+
+    view_freqs->hidden(true);
+    view_config->hidden(true);
+
+    using namespace app_settings;
+    settings_ = std::make_unique<SettingsManager>(
+        "ext_signal_hunter", Mode::RX,
+        SettingBindings{
+            {"threshold"sv, &energy_threshold},
+            {"hangtime_ms"sv, &hangtime_ms},
+            {"hop_dwell_ms"sv, &hop_dwell_ms},
+            {"single_freq"sv, &single_frequency},
+            {"file"sv, &freqman_file}});
+}
+
+SignalHunterAppView::~SignalHunterAppView() {
+    if (!freq_hop_mode) {
+        single_frequency = receiver_model.target_frequency();
+    }
+
+    // Safely shutdown recording
+    stop_recording();
+    receiver_model.disable();
+    baseband::shutdown();
+}
+
+void SignalHunterAppView::focus() {
+    if (tab_view)
+        tab_view->focus();
+}
+
+// TIMER LOGIC: Based on display refresh rate
+void SignalHunterAppView::on_frame_sync() {
+    // Timer running only if, HUNTING, in HOPPING mode, not recording + we have the freqs list
+    if (is_hunting && freq_hop_mode && !capture_thread && !frequency_list.empty()) {
+        hop_timer_ms += 17;  // 1 frame in a 60 Hz display ~ 16.6 ms
+
+        // if Dwell Time has passed, change frequency
+        if (hop_timer_ms >= hop_dwell_ms) {
+            hop_timer_ms = 0;
+
+            current_freq_index = (current_freq_index + 1) % frequency_list.size();
+            auto next_freq = frequency_list[current_freq_index];
+            receiver_model.set_target_frequency(next_freq);
+
+            if (view_main) {
+                view_main->update_frequency(next_freq);
+            }
+        }
+    } else {
+        hop_timer_ms = 0;  // if not hunting / recording -> timer = 0
+    }
+}
+
+// Recording control logic via M0 <-> M4 IPC
+void SignalHunterAppView::send_hunter_config(bool start) {
+    // Send config to baseband processor via IPC mechanism
+    baseband::set_hunter_config(energy_threshold, hangtime_ms, start);
+
+    if (!start) {
+        stop_recording();
+    }
+}
+
+void SignalHunterAppView::on_hunter_trigger(const HunterTriggerMessage* /*message*/) {
+    // M4 has detected signal above threshold - start I/Q capture
+    if (!capture_thread && is_hunting) {
+        trigger_hits++;
+        view_main->update_hits(trigger_hits);
+        view_main->update_status("RECORDING!", Theme::getInstance()->fg_red);
+        view_main->set_recording_state(true);
+
+        start_recording();
+    }
+}
+
+void SignalHunterAppView::on_hunter_stop(const HunterStopMessage*) {
+    if (capture_thread) {
+        stop_recording();
+        view_main->set_recording_state(false);
+
+        if (is_hunting) {
+            if (freq_hop_mode && !frequency_list.empty()) {
+                // Next frequency
+                current_freq_index = (current_freq_index + 1) % frequency_list.size();
+                auto next_freq = frequency_list[current_freq_index];
+                receiver_model.set_target_frequency(next_freq);
+                view_main->update_frequency(next_freq);
+
+                // Reset the timer
+                hop_timer_ms = 0;
+            }
+            view_main->update_status("HUNTING...", Theme::getInstance()->fg_green);
+        }
+    }
+}
+
+void SignalHunterAppView::start_recording() {
+    rtc::RTC datetime{};
+    rtc_time::now(datetime);
+
+    // Generate timestamped filename for capture session
+    const std::string capture_filename = "HNT_" +
+                                         to_string_dec_uint(datetime.year(), 4, '0') +
+                                         to_string_dec_uint(datetime.month(), 2, '0') +
+                                         to_string_dec_uint(datetime.day(), 2, '0') + "T" +
+                                         to_string_dec_uint(datetime.hour(), 2, '0') +
+                                         to_string_dec_uint(datetime.minute(), 2, '0') +
+                                         to_string_dec_uint(datetime.second(), 2, '0');
+
+    // Use FileWriter for direct raw I/Q dump to avoid M0 CPU bottlenecks.
+    // FileConvertWriter is heavier
+    auto writer = std::make_unique<FileWriter>();
+    auto create_error = writer->create(std::filesystem::path(u"/CAPTURES") / (capture_filename + ".C16"));
+
+    if (create_error.is_valid()) {
+        if (view_main) view_main->update_status("SD ERROR", Theme::getInstance()->fg_red);
+
+        send_hunter_config(false);
+        is_hunting = false;
+        if (view_main) view_main->set_start_button_text("START");
+
+        return;
+    }
+
+    current_capture_filename = capture_filename;
+
+    capture_thread = std::make_unique<CaptureThread>(
+        std::move(writer),
+        4096,
+        4,
+        []() {},
+        [](File::Error) {});
+
+    if (view_main) view_main->update_status("RECORDING!", Theme::getInstance()->fg_red);
+}
+
+void SignalHunterAppView::stop_recording() {
+    // Stop I/Q capture and release SD card for metadata write
+    capture_thread.reset();
+
+    // Generate metadata file after capture completes
+    if (!current_capture_filename.empty()) {
+        File txt_file;
+        auto txt_error = txt_file.create(std::filesystem::path(u"/CAPTURES") / (current_capture_filename + ".TXT"));
+
+        // is_valid() returns true only if error is present (counter-intuitive)
+        if (!txt_error.is_valid()) {
+            std::string metadata =
+                "center_frequency=" + to_string_dec_uint(receiver_model.target_frequency()) + "\n" +
+                // Divide main sample rate by decimation factor (8) to match C16 sample rate
+                "sample_rate=" + to_string_dec_uint(receiver_model.sampling_rate() / 8) + "\n";
+
+            txt_file.write(metadata.c_str(), metadata.length());
+        }
+        // Clear filename for next capture cycle
+        current_capture_filename.clear();
+    }
+}
+
+}  // namespace ui::external_app::signal_hunter

firmware/application/external/signal_hunter/ui_signal_hunter.hpp

@@ -0,0 +1,192 @@
+/*
+ * Copyright (C) 2026 Matej Sochan
+ *
+ * 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 __UI_SIGNAL_HUNTER_H__
+#define __UI_SIGNAL_HUNTER_H__
+
+#include "app_settings.hpp"
+#include "rf_path.hpp"
+#include "ui_widget.hpp"
+#include "ui_navigation.hpp"
+#include "ui_receiver.hpp"
+#include "ui_tabview.hpp"
+#include "ui_freq_field.hpp"
+#include "capture_thread.hpp"
+#include "message.hpp"
+#include <vector>
+#include <memory>
+
+namespace ui::external_app::signal_hunter {
+
+class SignalHunterAppView;
+
+// --- TAB 1: Main View ---
+class HunterMainView : public View {
+   public:
+    HunterMainView(Rect parent_rect, SignalHunterAppView& parent);
+    void on_show() override;
+    void focus() override;
+    void update_status(const std::string& status, const Style* style);
+    void update_hits(uint32_t hits);
+    void update_frequency(rf::Frequency freq);
+    void set_recording_state(bool recording);
+    void set_start_button_text(const std::string& text) { button_start_stop.set_text(text); }
+
+   private:
+    SignalHunterAppView& parent_app;
+    rf::Frequency current_freq_{433920000};
+    Text text_current_freq{{UI_POS_X_CENTER(14), UI_POS_Y(3), 112, 16}, ""};
+    Text text_status{{UI_POS_X_CENTER(12), UI_POS_Y(6), 96, 16}, "IDLE"};
+    Button button_start_stop{{UI_POS_X_CENTER(10), UI_POS_Y(8), 80, 32}, "START"};
+    Text text_hits{{UI_POS_X_CENTER(10), UI_POS_Y(11), 80, 16}, "Hits: 0"};
+};
+
+// --- TAB 2: Freqs View ---
+class HunterFreqsView : public View {
+   public:
+    HunterFreqsView(Rect parent_rect, SignalHunterAppView& parent);
+    void focus() override;
+    void update_list_count();
+
+   private:
+    SignalHunterAppView& parent_app;
+    Button button_load_file{{UI_POS_X(2), UI_POS_Y(1), 80, 28}, "LOAD FILE"};
+    Button button_clear{{UI_POS_X_RIGHT(12), UI_POS_Y(1), 80, 28}, "CLEAR"};
+
+    Labels labels{
+        {{UI_POS_X(2), UI_POS_Y(4)}, "Dwell Time (ms):", Color::light_grey()}};
+    NumberField field_dwell{{UI_POS_X_RIGHT(8), UI_POS_Y(4)}, 4, {10, 9999}, 10, ' '};
+
+    Text text_loaded_info{{UI_POS_X(2), UI_POS_Y(6), 208, 16}, "Loaded: 0 freqs"};
+};
+
+// --- TAB 3: Config View ---
+class HunterConfigView : public View {
+   public:
+    HunterConfigView(Rect parent_rect, SignalHunterAppView& parent);
+    void update_mode_display();
+    void focus() override;
+    void on_show() override;
+
+   private:
+    SignalHunterAppView& parent_app;
+
+    Button button_mode{
+        {UI_POS_X(2), UI_POS_Y(2), 208, 28},
+        "MODE: SINGLE"};
+
+    RxFrequencyField field_single_freq;  // UI_POS_Y(4)
+
+    Labels labels{
+        {{UI_POS_X(2), UI_POS_Y(6)}, "Energy Threshold:", Color::light_grey()},
+        {{UI_POS_X(2), UI_POS_Y(8)}, "Hang-Time (ms):", Color::light_grey()}};
+
+    NumberField field_threshold{{UI_POS_X_RIGHT(8), UI_POS_Y(6)}, 5, {100, 99999}, 100, ' '};
+    NumberField field_hang_time{{UI_POS_X_RIGHT(8), UI_POS_Y(8)}, 4, {10, 5000}, 10, ' '};
+
+    Text text_info_config{
+        {UI_POS_X(2), UI_POS_Y(10), 208, 16},
+        "Restart HUNT after change"};
+};
+
+// --- MAIN APP VIEW ---
+class SignalHunterAppView final : public ui::View {
+   public:
+    SignalHunterAppView(ui::NavigationView& nav);
+    ~SignalHunterAppView();
+    void focus() override;
+    std::string title() const override { return "SignalHunter"; }
+    ui::NavigationView& get_nav() { return nav_; }
+
+    // Application state shared across all views
+    std::vector<rf::Frequency> frequency_list;
+    uint32_t current_freq_index{0};
+    uint32_t energy_threshold{5000};
+    uint32_t hangtime_ms{500};
+    uint32_t hop_dwell_ms{200};
+    std::string freqman_file{"TARGETS"};
+    bool is_hunting{false};
+    uint32_t trigger_hits{0};
+    rf::Frequency single_frequency{433920000};
+    bool freq_hop_mode{false};
+
+    void send_hunter_config(bool start);
+    HunterMainView* get_main_view() { return view_main.get(); }
+    HunterConfigView* get_config_view() { return view_config.get(); }
+
+   private:
+    ui::NavigationView& nav_;
+
+    std::unique_ptr<app_settings::SettingsManager> settings_{};
+    std::unique_ptr<HunterMainView> view_main{};
+    std::unique_ptr<HunterFreqsView> view_freqs{};
+    std::unique_ptr<HunterConfigView> view_config{};
+    std::unique_ptr<TabView> tab_view{};
+
+    std::string current_capture_filename{};
+    std::unique_ptr<CaptureThread> capture_thread{};
+
+    ui::LNAGainField field_lna{{UI_POS_X(0), UI_POS_Y(0)}};
+    ui::VGAGainField field_vga{{UI_POS_X(7), UI_POS_Y(0)}};
+    ui::RFAmpField field_rf_amp{{UI_POS_X(14), UI_POS_Y(0)}};
+    ui::RSSI rssi{{UI_POS_X(0), UI_POS_Y(1), UI_POS_MAXWIDTH, 4}};
+
+    static constexpr Dim tab_bar_h = 20;
+
+    Rect view_rect{
+        0, UI_POS_Y(2) + 4, UI_POS_MAXWIDTH,
+        screen_height - (UI_POS_Y(2) + 4) - UI_POS_HEIGHT(1)};
+
+    Rect content_rect{
+        0, UI_POS_Y(2) + 4 + tab_bar_h, UI_POS_MAXWIDTH,
+        screen_height - (UI_POS_Y(2) + 4 + tab_bar_h) - UI_POS_HEIGHT(1)};
+
+    void on_hunter_trigger(const HunterTriggerMessage* message);
+    void on_hunter_stop(const HunterStopMessage* message);
+    void start_recording();
+    void stop_recording();
+
+    // timer variables
+    uint32_t hop_timer_ms{0};
+    void on_frame_sync();
+
+    MessageHandlerRegistration message_handler_frame_sync{
+        Message::ID::DisplayFrameSync,
+        [this](const Message* const) {
+            this->on_frame_sync();
+        }};
+
+    MessageHandlerRegistration message_handler_trigger{
+        Message::ID::HunterTrigger,
+        [this](const Message* const p) {
+            this->on_hunter_trigger(static_cast<const HunterTriggerMessage*>(p));
+        }};
+
+    MessageHandlerRegistration message_handler_stop{
+        Message::ID::HunterStop,
+        [this](const Message* const p) {
+            this->on_hunter_stop(static_cast<const HunterStopMessage*>(p));
+        }};
+};
+
+}  // namespace ui::external_app::signal_hunter
+
+#endif /*__UI_SIGNAL_HUNTER_H__*/

firmware/application/external/stopwatch/ui_stopwatch.cpp

@@ -1,6 +1,6 @@
 /*
  * Copyright 2025 Mark Thompson
- * copyleft 2025 zxkmm AKA zix aka sommermorgentraum
+ * copyleft 2025 zxkmm
  *
  * This file is part of PortaPack.
  *

firmware/application/external/stopwatch/ui_stopwatch.hpp

@@ -1,6 +1,6 @@
 /*
  * Copyright 2025 Mark Thompson
- * copyleft 2025 zxkmm AKA zix aka sommermorgentraum
+ * copyleft 2025 zxkmm
  *
  * This file is part of PortaPack.
  *

firmware/application/external/tetra_rx/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_tetra_rx.hpp"
+#include "ui_navigation.hpp"
+#include "external_app.hpp"
+
+namespace ui::external_app::tetra_rx {
+void initialize_app(ui::NavigationView& nav) {
+    nav.push<TetraRxView>();
+}
+}  // namespace ui::external_app::tetra_rx
+extern "C" {
+
+__attribute__((section(".external_app.app_tetra_rx.application_information"), used)) application_information_t _application_information_tetra_rx = {
+    /*.memory_location = */ (uint8_t*)0x00000000,
+    /*.externalAppEntry = */ ui::external_app::tetra_rx::initialize_app,
+    /*.header_version = */ CURRENT_HEADER_VERSION,
+    /*.app_version = */ VERSION_MD5,
+
+    /*.app_name = */ "Tetra",
+    /*.bitmap_data = */ {
+        0xE0,
+        0x0F,
+        0x18,
+        0x38,
+        0xE4,
+        0x67,
+        0x7E,
+        0xCE,
+        0xC7,
+        0xCC,
+        0x00,
+        0x00,
+        0xFF,
+        0x4F,
+        0xBA,
+        0xB2,
+        0x9A,
+        0xEE,
+        0xBA,
+        0xB2,
+        0x00,
+        0x00,
+        0x3B,
+        0xE3,
+        0x73,
+        0x7E,
+        0xC6,
+        0x27,
+        0x1C,
+        0x18,
+        0xF0,
+        0x07,
+    },
+    /*.icon_color = */ ui::Color::orange().v,
+    /*.menu_location = */ app_location_t::RX,
+    /*.desired_menu_position = */ -1,
+
+    /*.m4_app_tag = portapack::spi_flash::image_tag_tetrarx*/ {'P', 'T', 'E', 'T'},
+    /*.m4_app_offset = */ 0x00000000,  // will be filled at compile time
+};
+}

firmware/application/external/tetra_rx/tetra_bits.hpp

@@ -0,0 +1,45 @@
+#pragma once
+
+#include <stdint.h>
+#include <stddef.h>
+
+namespace ui::external_app::tetra_rx {
+
+class BitVector {
+   public:
+    BitVector(uint8_t* p, size_t bits)
+        : data_(p),
+          bits_(bits) {
+    }
+
+    inline bool get(size_t bit) const {
+        return (data_[bit >> 3] >>
+                (7 - (bit & 7))) &
+               1;
+    }
+
+    inline void set(size_t bit, bool value) {
+        if (value)
+            data_[bit >> 3] |=
+                1 << (7 - (bit & 7));
+        else
+            data_[bit >> 3] &=
+                ~(1 << (7 - (bit & 7)));
+    }
+
+    inline void xor_bit(size_t bit, bool value) {
+        if (value)
+            data_[bit >> 3] ^=
+                1 << (7 - (bit & 7));
+    }
+
+    inline size_t size() const {
+        return bits_;
+    }
+
+   private:
+    uint8_t* data_;
+    size_t bits_;
+};
+
+}  // namespace ui::external_app::tetra_rx

firmware/application/external/tetra_rx/tetra_crc.cpp

@@ -0,0 +1,33 @@
+#include "tetra_crc.hpp"
+
+namespace ui::external_app::tetra_rx {
+
+uint16_t CRC::crc16_itut_bits(
+    const uint8_t* bits,
+    uint32_t n_bits,
+    uint16_t init) {
+    uint16_t crc = init;
+
+    for (uint32_t i = 0; i < n_bits; i++) {
+        uint8_t bit =
+            (bits[i >> 3] >>
+             (7 - (i & 7))) &
+            1;
+
+        crc ^= uint16_t(bit) << 15;
+
+        if (crc & 0x8000) {
+            crc =
+                (crc << 1) ^
+                0x1021;
+        } else {
+            crc <<= 1;
+        }
+
+        crc &= 0xffff;
+    }
+
+    return crc;
+}
+
+}  // namespace ui::external_app::tetra_rx

firmware/application/external/tetra_rx/tetra_crc.hpp

@@ -0,0 +1,17 @@
+#pragma once
+
+#include <stdint.h>
+
+namespace ui::external_app::tetra_rx {
+
+class CRC {
+   public:
+    static constexpr uint16_t CRC_OK = 0x1d0f;
+
+    static uint16_t crc16_itut_bits(
+        const uint8_t* bits,
+        uint32_t n_bits,
+        uint16_t init = 0xffff);
+};
+
+}  // namespace ui::external_app::tetra_rx

firmware/application/external/tetra_rx/tetra_descrambler.cpp

@@ -0,0 +1,60 @@
+#include "tetra_descrambler.hpp"
+
+namespace ui::external_app::tetra_rx {
+
+static inline uint8_t lfsr_step(uint32_t& s) {
+    uint8_t b = 0;
+
+    b ^= (s >> (32 - 32)) & 1;
+    b ^= (s >> (32 - 26)) & 1;
+    b ^= (s >> (32 - 23)) & 1;
+    b ^= (s >> (32 - 22)) & 1;
+    b ^= (s >> (32 - 16)) & 1;
+    b ^= (s >> (32 - 12)) & 1;
+    b ^= (s >> (32 - 11)) & 1;
+    b ^= (s >> (32 - 10)) & 1;
+    b ^= (s >> (32 - 8)) & 1;
+    b ^= (s >> (32 - 7)) & 1;
+    b ^= (s >> (32 - 5)) & 1;
+    b ^= (s >> (32 - 4)) & 1;
+    b ^= (s >> (32 - 2)) & 1;
+    b ^= (s >> (32 - 1)) & 1;
+
+    s = (s >> 1) | (uint32_t(b) << 31);
+
+    return b;
+}
+
+void Descrambler::generate(
+    uint32_t init,
+    uint8_t* seq,
+    size_t bits) {
+    uint32_t s = init;
+
+    for (size_t i = 0; i < bits; i++)
+        seq[i] = lfsr_step(s);
+}
+
+void Descrambler::descramble(
+    BitVector& bits,
+    uint32_t init) {
+    uint32_t s = init;
+
+    for (size_t i = 0; i < bits.size(); i++)
+        bits.xor_bit(i, lfsr_step(s));
+}
+
+uint32_t Descrambler::dmo_scramb_init(
+    uint32_t mni,
+    uint32_t src) {
+    uint32_t init =
+        (src & 0xFFFFFF) |
+        ((mni & 0x3F) << 24);
+
+    init <<= 2;
+    init |= 3;
+
+    return init;
+}
+
+}  // namespace ui::external_app::tetra_rx

firmware/application/external/tetra_rx/tetra_descrambler.hpp

@@ -0,0 +1,26 @@
+#pragma once
+
+#include <stdint.h>
+#include "tetra_bits.hpp"
+
+namespace ui::external_app::tetra_rx {
+
+class Descrambler {
+   public:
+    static constexpr uint32_t SCRAMB_INIT_BSCH = 0x00000003;
+
+    static void descramble(
+        BitVector& bits,
+        uint32_t init = SCRAMB_INIT_BSCH);
+
+    static void generate(
+        uint32_t init,
+        uint8_t* sequence,
+        size_t bits);
+
+    static uint32_t dmo_scramb_init(
+        uint32_t mni,
+        uint32_t src);
+};
+
+}  // namespace ui::external_app::tetra_rx

firmware/application/external/tetra_rx/tetra_interleave.cpp

@@ -0,0 +1,21 @@
+#include "tetra_interleave.hpp"
+
+namespace ui::external_app::tetra_rx {
+
+void Interleave::block_deinterleave(
+    BitVector& in,
+    BitVector& out,
+    uint32_t K,
+    uint32_t a) {
+    for (uint32_t i = 1; i <= K; i++) {
+        uint32_t k =
+            1 +
+            ((a * i) % K);
+
+        out.set(
+            i - 1,
+            in.get(k - 1));
+    }
+}
+
+}  // namespace ui::external_app::tetra_rx

firmware/application/external/tetra_rx/tetra_interleave.hpp

@@ -0,0 +1,16 @@
+#pragma once
+
+#include "tetra_bits.hpp"
+
+namespace ui::external_app::tetra_rx {
+
+class Interleave {
+   public:
+    static void block_deinterleave(
+        BitVector& in,
+        BitVector& out,
+        uint32_t K,
+        uint32_t a);
+};
+
+}  // namespace ui::external_app::tetra_rx

firmware/application/external/tetra_rx/tetra_rcpc.cpp

@@ -0,0 +1,24 @@
+#include "tetra_rcpc.hpp"
+#include <string.h>
+
+namespace ui::external_app::tetra_rx {
+
+static constexpr uint8_t P_RATE_2_3[3] = {1, 2, 5};
+
+static constexpr uint32_t T_RATE_2_3 = 3;
+static constexpr uint32_t PERIOD = 8;
+
+void RCPC::depuncture_2_3(BitVector& in, uint8_t* out, uint32_t in_bits) {
+    const uint32_t mother_bits = ((in_bits + T_RATE_2_3 - 1) / T_RATE_2_3) * PERIOD + PERIOD;
+    memset(out, ERASED, mother_bits);
+    for (uint32_t j = 1; j <= in_bits; j++) {
+        uint32_t i = j;
+        uint32_t k = PERIOD * ((i - 1) / T_RATE_2_3);
+        k += P_RATE_2_3[(i - 1) % T_RATE_2_3];
+        if (k >= 1 && k <= mother_bits) {
+            out[k - 1] = in.get(j - 1);
+        }
+    }
+}
+
+}  // namespace ui::external_app::tetra_rx

firmware/application/external/tetra_rx/tetra_rcpc.hpp

@@ -0,0 +1,18 @@
+#pragma once
+
+#include <stdint.h>
+#include "tetra_bits.hpp"
+
+namespace ui::external_app::tetra_rx {
+
+class RCPC {
+   public:
+    static constexpr uint8_t ERASED = 0xff;
+
+    static void depuncture_2_3(
+        BitVector& in,
+        uint8_t* out,
+        uint32_t in_bits);
+};
+
+}  // namespace ui::external_app::tetra_rx

firmware/application/external/tetra_rx/tetra_viterbi.cpp

@@ -0,0 +1,73 @@
+#include "tetra_viterbi.hpp"
+#include <string.h>
+
+namespace ui::external_app::tetra_rx {
+
+int Viterbi::decode_cch(
+    const uint8_t* mother,
+    uint32_t n_info,
+    uint8_t* bits,
+    uint8_t* trace_buffer) {  // Puffer by caller
+
+    // Store these on stack, to avoid flash space usage
+    const uint8_t next_state[16][2] = {
+        {0, 1}, {2, 3}, {4, 5}, {6, 7}, {8, 9}, {10, 11}, {12, 13}, {14, 15}, {0, 1}, {2, 3}, {4, 5}, {6, 7}, {8, 9}, {10, 11}, {12, 13}, {14, 15}};
+    const uint8_t next_output[16][2] = {
+        {0, 15}, {11, 4}, {6, 9}, {13, 2}, {5, 10}, {14, 1}, {3, 12}, {8, 7}, {15, 0}, {4, 11}, {9, 6}, {2, 13}, {10, 5}, {1, 14}, {12, 3}, {7, 8}};
+
+    const uint16_t INF = 0x3fff;
+    uint16_t cost[16];
+    uint16_t new_cost[16];
+
+    // Initialization
+    for (int i = 0; i < 16; i++) cost[i] = INF;
+    cost[0] = 0;
+
+    for (uint32_t step = 0; step < n_info; step++) {
+        for (int i = 0; i < 16; i++) new_cost[i] = INF;
+        const uint8_t* rx = &mother[step * 4];
+
+        for (int prev = 0; prev < 16; prev++) {
+            if (cost[prev] >= INF) continue;
+
+            for (int bit = 0; bit < 2; bit++) {
+                const uint8_t pattern = next_output[prev][bit];
+                const uint8_t next = next_state[prev][bit];
+
+                uint16_t d = 0;
+                for (int b = 0; b < 4; b++) {
+                    if (rx[b] != 0xff && rx[b] != ((pattern >> (3 - b)) & 1)) d++;
+                }
+
+                const uint16_t total = cost[prev] + d;
+                if (total < new_cost[next]) {
+                    new_cost[next] = total;
+                    trace_buffer[step * 16 + next] = (prev << 1) | bit;
+                }
+            }
+        }
+        memcpy(cost, new_cost, sizeof(cost));
+    }
+
+    // Traceback
+    uint8_t best_state = 0;
+    for (int i = 1; i < 16; i++) {
+        if (cost[i] < cost[best_state]) best_state = i;
+    }
+
+    uint8_t state = best_state;
+    memset(bits, 0, (n_info + 7) >> 3);
+
+    for (int step = (int)n_info - 1; step >= 0; step--) {
+        uint8_t packed = trace_buffer[step * 16 + state];
+        uint8_t prev = (packed >> 1) & 0x0F;
+        uint8_t bit = packed & 0x01;
+
+        if (bit) bits[step >> 3] |= (1 << (7 - (step & 7)));
+        state = prev;
+    }
+
+    return cost[best_state];
+}
+
+}  // namespace ui::external_app::tetra_rx

firmware/application/external/tetra_rx/tetra_viterbi.hpp

@@ -0,0 +1,17 @@
+#pragma once
+
+#include <stdint.h>
+#include <string.h>
+
+namespace ui::external_app::tetra_rx {
+
+class Viterbi {
+   public:
+    int decode_cch(
+        const uint8_t* mother,
+        uint32_t n_info,
+        uint8_t* bits,
+        uint8_t* trace_buffer);
+};
+
+}  // namespace ui::external_app::tetra_rx

firmware/application/external/tetra_rx/ui_tetra_rx.cpp

@@ -0,0 +1,354 @@
+#include "ui_tetra_rx.hpp"
+#include "rtc_time.hpp"
+#include "baseband_api.hpp"
+#include "string_format.hpp"
+#include "portapack_persistent_memory.hpp"
+#include "file_path.hpp"
+#include "tetra_crc.hpp"
+#include "tetra_descrambler.hpp"
+#include "tetra_interleave.hpp"
+#include "tetra_rcpc.hpp"
+#include "tetra_viterbi.hpp"
+#include <cstring>
+
+using namespace portapack;
+using namespace ui;
+
+namespace ui::external_app::tetra_rx {
+
+template <size_t OutBytes>
+bool TetraChannelDecoder::decode_block(
+    const std::array<uint8_t, 63>& burst,
+    size_t offset,
+    size_t len_t5,
+    size_t type1_bits,
+    size_t type2_bits,
+    size_t interleave_a,
+    std::array<uint8_t, OutBytes>& out,
+    uint16_t& crc,
+    int& cost,
+    uint32_t scramb_init) {
+    std::array<uint8_t, 64> t5{};
+    std::array<uint8_t, 64> t3{};
+    std::array<uint8_t, 1200> mother{};
+    std::array<uint8_t, 64> type2{};
+
+    out.fill(0);
+
+    for (size_t i = 0; i < len_t5; i++) {
+        set_bit(t5, i, get_bit(burst, offset + i));
+    }
+
+    BitVector t5_bits{t5.data(), len_t5};
+    Descrambler::descramble(t5_bits, scramb_init);
+
+    BitVector t3_bits{t3.data(), len_t5};
+    Interleave::block_deinterleave(t5_bits, t3_bits, len_t5, interleave_a);
+
+    RCPC::depuncture_2_3(t3_bits, mother.data(), len_t5);
+    Viterbi viterbi;
+    cost = viterbi.decode_cch(mother.data(), type2_bits, type2.data(), trace_buffer);
+    crc = CRC::crc16_itut_bits(type2.data(), type1_bits + 16);
+    for (size_t i = 0; i < type1_bits; i++) {
+        set_bit(out, i, (type2[i >> 3] >> (7 - (i & 7))) & 1);
+    }
+    return crc == CRC::CRC_OK;
+}
+
+TetraChannelDecoder::Result TetraChannelDecoder::decode_dnb(const TetraDnbMessage& message) {
+    Result result{};
+    result.inverted = message.inverted;
+
+    if (!network_synced)
+        return result;
+
+    std::array<uint8_t, 63> buffer{};
+    std::copy(message.payload.begin(), message.payload.end(), buffer.begin());
+
+    uint32_t tmo_dnb_seed = (((uint32_t)last_mcc << 20) | ((uint32_t)last_mnc << 6) | (uint32_t)last_bcc) << 2 | 3;
+    // 1. DNB Full slot (SCH/F)
+    bool ok = decode_block(buffer, 0, SCH_F_LEN_BITS, SCH_F_TYPE1_BITS, SCH_F_TYPE2_BITS,
+                           SCH_F_INTERLEAVE_A, result.payload, result.crc, result.cost, tmo_dnb_seed);
+
+    // 2. SCH/HD Block 1
+    if (!ok) {
+        ok = decode_block(buffer, 0, BLK2_LEN_BITS, SB2_TYPE1_BITS, SB2_TYPE2_BITS,
+                          SB2_INTERLEAVE_A, result.payload, result.crc, result.cost, tmo_dnb_seed);
+    }
+
+    // 3. SCH/HD Block 2
+    if (!ok) {
+        ok = decode_block(buffer, 216, BLK2_LEN_BITS, SB2_TYPE1_BITS, SB2_TYPE2_BITS,
+                          SB2_INTERLEAVE_A, result.payload, result.crc, result.cost, tmo_dnb_seed);
+    }
+
+    if (ok) {
+        result.type = Result::Type::Dnb;
+        result.is_ok = true;
+        parse_mac_pdu(result);
+    }
+
+    return result;
+}
+
+TetraChannelDecoder::Result TetraChannelDecoder::decode_burst(const TetraBurstMessage& message) {
+    Result result{};
+    result.sync_errors = message.sync_errors;
+    result.inverted = message.inverted;
+
+    // 1. SCH/S
+    bool ok = decode_block(
+        message.payload, BLK1_OFFSET_BITS, BLK1_LEN_BITS,
+        SB1_TYPE1_BITS, SB1_TYPE2_BITS, SB1_INTERLEAVE_A,
+        result.payload, result.crc, result.cost,
+        Descrambler::SCRAMB_INIT_BSCH);
+
+    if (!ok) return result;
+
+    result.type = Result::Type::Sync;
+    result.is_ok = true;
+    parse_sync_pdu(result);
+
+    uint16_t current_mcc = result.mcc;
+    uint16_t current_mnc = result.mnc;
+    uint8_t current_bcc = result.bcc;
+    uint8_t current_enc = result.encryption;
+
+    // 2. SCH/H
+    uint16_t h_crc = 0;
+    int h_cost = 0;
+
+    ok = decode_block(
+        message.payload, TMO_BLK2_OFFSET_BITS, BLK2_LEN_BITS,
+        SB2_TYPE1_BITS, SB2_TYPE2_BITS, SB2_INTERLEAVE_A,
+        result.payload, h_crc, h_cost,
+        Descrambler::SCRAMB_INIT_BSCH);
+
+    if (ok) {
+        result.type = Result::Type::SyncFull;
+        result.crc = h_crc;
+        result.cost = h_cost;
+
+        result.mcc = current_mcc;
+        result.mnc = current_mnc;
+        result.bcc = current_bcc;
+        result.encryption = current_enc;
+
+        parse_mac_pdu(result);
+    } else {
+        result.encryption = current_enc;
+    }
+
+    return result;
+}
+
+uint32_t TetraChannelDecoder::read_bits(const uint8_t* bytes, size_t bit, size_t count) const {
+    uint32_t value = 0;
+    for (size_t i = 0; i < count; i++) {
+        value <<= 1;
+        value |= (bytes[(bit + i) >> 3] >> (7 - ((bit + i) & 7))) & 1;
+    }
+    return value;
+}
+
+void TetraChannelDecoder::parse_sync_pdu(Result& result) {
+    // Sys 4 bit, then BCC
+    result.bcc = read_bits(result.payload.data(), 4, 6);
+    result.timeslot = read_bits(result.payload.data(), 10, 2);
+    result.frame_number = read_bits(result.payload.data(), 12, 5);
+    result.encryption = read_bits(result.payload.data(), 30, 1);
+    result.mcc = read_bits(result.payload.data(), 31, 10);
+    result.mnc = read_bits(result.payload.data(), 41, 14);
+
+    last_mcc = result.mcc;
+    last_mnc = result.mnc;
+    last_bcc = result.bcc;
+    network_synced = true;
+}
+
+void TetraChannelDecoder::parse_mac_pdu(Result& result) {
+    result.pdu_type = read_bits(result.payload.data(), 0, 2);
+
+    if (result.pdu_type == 0) {  // MAC-RESOURCE
+        result.encryption = read_bits(result.payload.data(), 4, 2);
+        uint8_t length_ind = read_bits(result.payload.data(), 7, 6);
+
+        if (result.encryption == 0 && length_ind > 0 && length_ind < 62) {
+            size_t offset = 13;
+            uint8_t addr_type = read_bits(result.payload.data(), offset, 3);
+            offset += 3;
+
+            if (addr_type == 1) {
+                result.calling_ssi = read_bits(result.payload.data(), offset, 24);
+                offset += 24;
+            } else if (addr_type == 2) {
+                offset += 10;
+            } else if (addr_type == 3 || addr_type == 4) {
+                result.calling_ssi = read_bits(result.payload.data(), offset, 24);
+                offset += 24;
+            } else if (addr_type == 5) {
+                offset += 34;
+            } else if (addr_type == 6) {
+                offset += 30;
+            } else if (addr_type == 7) {
+                offset += 34;
+            }
+
+            // skip optional fields
+            if (read_bits(result.payload.data(), offset++, 1)) offset += 4;  // Power control
+            if (read_bits(result.payload.data(), offset++, 1)) offset += 8;  // Slot grant
+
+            uint8_t chan_alloc = read_bits(result.payload.data(), offset++, 1);
+
+            if (chan_alloc == 0) {
+                uint8_t llc_type = read_bits(result.payload.data(), offset, 4);
+                offset += 4;
+
+                // LLC header skipped
+                if (llc_type == 0 || llc_type == 1)
+                    offset += 2;
+                else if (llc_type == 2 || llc_type == 3 || llc_type == 6 || llc_type == 7)
+                    offset += 1;
+
+                uint8_t mle_type = read_bits(result.payload.data(), offset, 3);
+                offset += 3;
+
+                // 1 = CMCE
+                if (mle_type == 1) {
+                    result.cmce_type = read_bits(result.payload.data(), offset, 5);
+                    offset += 5;
+                    result.call_id = read_bits(result.payload.data(), offset, 14);
+                }
+            }
+        }
+    } else if (result.pdu_type == 2) {  // SYSINFO/BCAST
+        uint8_t bcast_type = read_bits(result.payload.data(), 2, 2);
+        if (bcast_type == 0) {
+            result.la = read_bits(result.payload.data(), 82, 14);
+            result.encryption = read_bits(result.payload.data(), 122, 1);
+        }
+    }
+}
+
+TetraRxView::TetraRxView(NavigationView& nav)
+    : nav_{nav} {
+    baseband::run_prepared_image(portapack::memory::map::m4_code.base());
+
+    add_children({&rssi, &channel, &field_rf_amp, &field_lna, &field_vga,
+                  &field_frequency, &text_mcc, &text_la, &text_pdu,
+                  &text_mnc, &text_ts, &text_fn, &text_bcc, &text_enc, &text_debug, &console});
+
+    field_frequency.set_step(25000);
+
+    receiver_model.set_modulation(ReceiverModel::Mode::NarrowbandFMAudio);
+    receiver_model.set_sampling_rate(3072000);
+    receiver_model.set_baseband_bandwidth(1750000);
+    receiver_model.set_squelch_level(0);
+    receiver_model.enable();
+}
+
+void TetraRxView::focus() {
+    field_frequency.focus();
+}
+
+void TetraRxView::on_data_tetra(const TetraBurstMessage& message) {
+    packet_count++;
+    auto result = decoder.decode_burst(message);
+
+    if (result.type == TetraChannelDecoder::Result::Type::Sync ||
+        result.type == TetraChannelDecoder::Result::Type::SyncFull) {
+        valid_count++;
+
+        text_mcc.set("MCC: " + to_string_dec_uint(result.mcc));
+        text_mnc.set("MNC: " + to_string_dec_uint(result.mnc));
+        text_bcc.set("BCC: " + to_string_dec_uint(result.bcc));
+        text_ts.set("TS:  " + to_string_dec_uint(result.timeslot));
+        text_fn.set("FN:  " + to_string_dec_uint(result.frame_number));
+
+        std::string enc_str = (result.encryption != 0) ? "Encrypted" : "Clear";
+        text_enc.set("ENC: " + enc_str);
+
+        if (result.type == TetraChannelDecoder::Result::Type::SyncFull) {
+            h_valid_count++;
+            if (result.la != 0xffff) text_la.set("LA:  " + to_string_dec_uint(result.la));
+            text_pdu.set("PDU: " + decoder.get_pdu_name(result.pdu_type));
+        }
+    }
+    text_debug.set(
+        "Syn: " + to_string_dec_uint(packet_count) +
+        ", V: " + to_string_dec_uint(valid_count) +
+        ", H: " + to_string_dec_uint(h_valid_count) +
+        ", E:" + to_string_dec_uint(result.sync_errors));
+}
+
+void TetraRxView::on_data_dnb(const TetraDnbMessage& message) {
+    dnb_count++;
+    auto result = decoder.decode_dnb(message);
+
+    if (result.is_ok && result.type == TetraChannelDecoder::Result::Type::Dnb) {
+        if (result.la != 0xffff) text_la.set("LA:  " + to_string_dec_uint(result.la));
+        text_pdu.set("PDU: " + decoder.get_pdu_name(result.pdu_type));
+
+        std::string enc_str = (result.encryption != 0) ? "Encrypted" : "Clear";
+        text_enc.set("ENC: " + enc_str);
+
+        // if (rate_limiter++ < 2) console.writeln("DNB: " + decoder.get_pdu_name(result.pdu_type));
+        if (result.cmce_type != 0xff) {
+            std::string msg = "";
+            if (result.cmce_type == 7)
+                msg = "SETUP";
+            else if (result.cmce_type == 1)
+                msg = "CALL PROCEEDING";
+            else if (result.cmce_type == 0)
+                msg = "ALERTING";
+            else if (result.cmce_type == 2)
+                msg = "CONNECT";
+            else if (result.cmce_type == 3)
+                msg = "CONNECT ACK";
+            else if (result.cmce_type == 11)
+                msg = "TX GRANTED";
+            else if (result.cmce_type == 9)
+                msg = "TX CEASED";
+            else if (result.cmce_type == 13)
+                msg = "TX WAIT";
+            else if (result.cmce_type == 10)
+                msg = "TX CONTINUE";
+            else if (result.cmce_type == 12)
+                msg = "TX INTERRUPT";
+            else if (result.cmce_type == 4)
+                msg = "DISCONNECT";
+            else if (result.cmce_type == 6)
+                msg = "RELEASE";
+            else if (result.cmce_type == 5)
+                msg = "INFO";
+            else if (result.cmce_type == 8)
+                msg = "STATUS";
+            else if (result.cmce_type == 14)
+                msg = "SDS DATA";
+            else if (result.cmce_type == 15)
+                msg = "FACILITY";
+            else if (result.cmce_type == 16)
+                msg = "CALL RESTORE";
+            else if (result.cmce_type == 31)
+                msg = "NOT SUPPORTED";
+            else
+                msg = "CMCE:" + to_string_dec_uint(result.cmce_type);
+
+            console.writeln(msg);
+            if (result.call_id != 0xffff) {
+                console.writeln("ID:" + to_string_dec_uint(result.call_id) + " | SSI:" + to_string_dec_uint(result.calling_ssi));
+            }
+        }
+    }
+}
+
+void TetraRxView::on_timer() {
+    rate_limiter = 0;
+}
+
+TetraRxView::~TetraRxView() {
+    receiver_model.disable();
+    baseband::shutdown();
+}
+
+}  // namespace ui::external_app::tetra_rx

firmware/application/external/tetra_rx/ui_tetra_rx.hpp

@@ -0,0 +1,192 @@
+#ifndef __UI_TETRA_RX_H__
+#define __UI_TETRA_RX_H__
+
+#include "ui.hpp"
+#include "ui_language.hpp"
+#include "ui_navigation.hpp"
+#include "ui_receiver.hpp"
+#include "ui_freq_field.hpp"
+#include "app_settings.hpp"
+#include "radio_state.hpp"
+#include "log_file.hpp"
+#include "utility.hpp"
+#include "message.hpp"
+#include <array>
+#include <string>
+
+using namespace ui;
+
+namespace ui::external_app::tetra_rx {
+
+class TetraChannelDecoder {
+   public:
+    struct Result {
+        enum class Type { None,
+                          Sync,
+                          SyncFull,
+                          Dnb };
+        Type type{Type::None};
+
+        bool is_ok{false};
+        uint8_t sync_errors{0};
+        bool inverted{false};
+
+        uint16_t crc{0};
+        int cost{0};
+
+        uint8_t timeslot{0xff};
+        uint8_t frame_number{0xff};
+        uint16_t mcc{0xffff};
+        uint16_t mnc{0xffff};
+        uint8_t bcc{0xff};
+
+        uint8_t pdu_type{0xff};
+        uint16_t la{0xffff};
+        uint8_t encryption{0xff};
+
+        uint8_t cmce_type{0xff};
+        uint16_t call_id{0xffff};
+        uint32_t calling_ssi{0};
+
+        std::array<uint8_t, 34> payload{};
+    };
+
+    std::string get_pdu_name(uint8_t pdu_type) {
+        switch (pdu_type) {
+            case 0:
+                return "MAC-RESOURCE";
+            case 1:
+                return "MAC-FRAG";
+            case 2:
+                return "SYSINFO/BCAST";
+            case 3:
+                return "MAC-U-SIGNAL";
+            default:
+                return "UNK_" + std::to_string(pdu_type);
+        }
+    }
+
+    Result decode_burst(const TetraBurstMessage& message);
+    Result decode_dnb(const TetraDnbMessage& message);
+
+   private:
+    static constexpr size_t BLK1_OFFSET_BITS = 94;
+    static constexpr size_t BLK1_LEN_BITS = 120;
+    static constexpr size_t TMO_BLK2_OFFSET_BITS = 282;
+    static constexpr size_t BLK2_LEN_BITS = 216;
+    static constexpr size_t SB1_TYPE1_BITS = 60;
+    static constexpr size_t SB1_TYPE2_BITS = 80;
+    static constexpr size_t SB1_INTERLEAVE_A = 11;
+    static constexpr size_t SB2_TYPE1_BITS = 124;
+    static constexpr size_t SB2_TYPE2_BITS = 144;
+    static constexpr size_t SB2_INTERLEAVE_A = 101;
+
+    static constexpr size_t SCH_F_LEN_BITS = 432;
+    static constexpr size_t SCH_F_TYPE1_BITS = 268;
+    static constexpr size_t SCH_F_TYPE2_BITS = 288;
+    static constexpr size_t SCH_F_INTERLEAVE_A = 103;
+
+    uint16_t last_mcc{0};
+    uint16_t last_mnc{0};
+    uint8_t last_bcc{0};
+    bool network_synced{false};
+
+    // Viterbi buffer
+    uint8_t trace_buffer[9216];
+
+    template <size_t OutBytes>
+    bool decode_block(const std::array<uint8_t, 63>& burst,
+                      size_t offset,
+                      size_t len_t5,
+                      size_t type1_bits,
+                      size_t type2_bits,
+                      size_t interleave_a,
+                      std::array<uint8_t, OutBytes>& out,
+                      uint16_t& crc,
+                      int& cost,
+                      uint32_t scramb_init);
+
+    void parse_sync_pdu(Result& result);
+    void parse_mac_pdu(Result& result);
+    uint32_t read_bits(const uint8_t* bytes, size_t bit, size_t count) const;
+
+    template <size_t N>
+    uint8_t get_bit(const std::array<uint8_t, N>& arr, size_t bit_idx) const {
+        return (arr[bit_idx / 8] >> (7 - (bit_idx % 8))) & 0x01;
+    }
+
+    template <size_t N>
+    void set_bit(std::array<uint8_t, N>& arr, size_t bit_idx, uint8_t val) const {
+        if (val)
+            arr[bit_idx / 8] |= (1 << (7 - (bit_idx % 8)));
+        else
+            arr[bit_idx / 8] &= ~(1 << (7 - (bit_idx % 8)));
+    }
+};
+
+class TetraRxView : public View {
+   public:
+    TetraRxView(NavigationView& nav);
+    ~TetraRxView();
+    void focus() override;
+    std::string title() const override { return "Tetra RX"; };
+
+   private:
+    NavigationView& nav_;
+    RxRadioState radio_state_{};
+    app_settings::SettingsManager settings_{"rx_tetra", app_settings::Mode::RX};
+
+    uint32_t packet_count{0};
+    uint32_t valid_count{0};
+    uint32_t h_valid_count{0};
+    uint32_t dnb_count{0};
+
+    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_RIGHT(9), UI_POS_Y(0), UI_POS_WIDTH(9), 4}};
+    Channel channel{{UI_POS_X_RIGHT(9), UI_POS_Y(0) + 5, UI_POS_WIDTH(9), 4}};
+
+    Text text_mcc{{UI_POS_X(0), UI_POS_Y(1), UI_POS_WIDTH(15), UI_POS_HEIGHT(1)}, "MCC: ---"};
+    Text text_mnc{{UI_POS_X(15), UI_POS_Y(1), UI_POS_WIDTH(15), UI_POS_HEIGHT(1)}, "MNC: ---"};
+    Text text_ts{{UI_POS_X(0), UI_POS_Y(2), UI_POS_WIDTH(15), UI_POS_HEIGHT(1)}, "TS:  -"};       // time slot
+    Text text_fn{{UI_POS_X(15), UI_POS_Y(2), UI_POS_WIDTH(15), UI_POS_HEIGHT(1)}, "FN:  -"};      // frame number
+    Text text_bcc{{UI_POS_X(0), UI_POS_Y(3), UI_POS_WIDTH(15), UI_POS_HEIGHT(1)}, "BCC: -"};      // Base Station Color Code
+    Text text_enc{{UI_POS_X(15), UI_POS_Y(3), UI_POS_WIDTH(15), UI_POS_HEIGHT(1)}, "ENC: -"};     // encoded or not
+    Text text_la{{UI_POS_X(0), UI_POS_Y(4), UI_POS_WIDTH(15), UI_POS_HEIGHT(1)}, "LA:  ----"};    // Location Area
+    Text text_pdu{{UI_POS_X(15), UI_POS_Y(4), UI_POS_WIDTH(15), UI_POS_HEIGHT(1)}, "PDU: ----"};  // pdu content type
+
+    Text text_debug{{UI_POS_X(0), UI_POS_Y(5), UI_POS_MAXWIDTH, UI_POS_HEIGHT(1)}, "Syn: 0, V: 0, H: 0, E:0"};  // sync, valid, h_valid, errors corrected in top part
+    Console console{{UI_POS_X(0), UI_POS_Y(6) + 8, UI_POS_MAXWIDTH, screen_height - (UI_POS_Y(7) + 8)}};
+
+    TetraChannelDecoder decoder{};
+
+    void on_data_tetra(const TetraBurstMessage&);
+    void on_data_dnb(const TetraDnbMessage&);
+
+    uint8_t rate_limiter{0};  // limiter, to keep the device responsive
+    void on_timer();
+
+    MessageHandlerRegistration message_handler_frame_sync{
+        Message::ID::DisplayFrameSync,
+        [this](const Message* const) {
+            this->on_timer();
+        }};
+
+    MessageHandlerRegistration message_handler_packet{
+        Message::ID::TetraBsch,
+        [this](Message* const p) {
+            this->on_data_tetra(*static_cast<const TetraBurstMessage*>(p));
+        }};
+
+    MessageHandlerRegistration message_handler_dnb{
+        Message::ID::TetraDnb,
+        [this](Message* const p) {
+            this->on_data_dnb(*static_cast<const TetraDnbMessage*>(p));
+        }};
+};
+
+}  // namespace ui::external_app::tetra_rx
+
+#endif

firmware/application/external/tuner/ui_tuner.cpp

@@ -1,5 +1,5 @@
 /*
- * copyleft 2024 zxkmm AKA zix aka sommermorgentraum
+ * copyleft 2024 zxkmm
  *
  * This file is part of PortaPack.
  *

firmware/application/external/tuner/ui_tuner.hpp

@@ -1,5 +1,5 @@
 /*
- * copyleft 2024 zxkmm AKA zix aka sommermorgentraum
+ * copyleft 2024 zxkmm
  *
  * This file is part of PortaPack.
  *

firmware/application/external/vor_rx/main.cpp

@@ -0,0 +1,85 @@
+/*
+ * Copyright (C) 2026 PortaPack Mayhem
+ *
+ * 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; if not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "ui.hpp"
+#include "ui_vor_rx.hpp"
+#include "ui_navigation.hpp"
+#include "external_app.hpp"
+
+namespace ui::external_app::vor_rx {
+
+void initialize_app(ui::NavigationView& nav) {
+    nav.push<VorRxView>();
+}
+
+}  // namespace ui::external_app::vor_rx
+
+extern "C" {
+
+__attribute__((section(".external_app.app_vor_rx.application_information"), used)) application_information_t _application_information_vor_rx = {
+    /*.memory_location = */ (uint8_t*)0x00000000,
+    /*.externalAppEntry = */ ui::external_app::vor_rx::initialize_app,
+    /*.header_version = */ CURRENT_HEADER_VERSION,
+    /*.app_version = */ VERSION_MD5,
+
+    /*.app_name = */ "VOR RX",
+    /*.bitmap_data = */ {
+        0x00,
+        0x00,
+        0x00,
+        0x00,
+        0x00,
+        0x00,
+        0x80,
+        0x01,
+        0xC0,
+        0x03,
+        0xE0,
+        0x07,
+        0xF0,
+        0x0F,
+        0xF8,
+        0x1F,
+        0xF8,
+        0x1F,
+        0xF0,
+        0x0F,
+        0xE0,
+        0x07,
+        0xC0,
+        0x03,
+        0x80,
+        0x01,
+        0x00,
+        0x00,
+        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_vor_rx */ {'P', 'V', 'R', 'X'},
+    /*.m4_app_offset = */ 0x00000000,  // will be filled at compile time
+};
+}

firmware/application/external/vor_rx/ui_vor_rx.cpp

@@ -0,0 +1,341 @@
+/*
+ * Copyright (C) 2026 PortaPack Mayhem
+ *
+ * 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; if not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "ui_vor_rx.hpp"
+
+#include "audio.hpp"
+#include "string_format.hpp"
+
+#include <algorithm>
+#include <cstdint>
+
+using namespace portapack;
+using namespace ui;
+
+namespace ui::external_app::vor_rx {
+
+void VorLogger::write_header() {
+    log_file.write_raw("Time;Course;Radial;Deviation;Quality;Flag;");
+}
+
+void VorLogger::log_status(const VorRxStatusDataMessage& message, uint16_t course_deg) {
+    const int16_t deviation = static_cast<int16_t>((static_cast<int32_t>(message.radial_deg) - static_cast<int32_t>(course_deg) + 540) % 360 - 180);
+    std::string row = ";";
+    row += to_string_dec_uint(course_deg);
+    row += ";" + to_string_dec_uint(message.radial_deg);
+    row += ";" + std::to_string(deviation);
+    row += ";" + to_string_dec_uint(message.quality);
+    row += ";" + std::string(message.valid ? (message.to_from ? "TO" : "FROM") : "--");
+    log_file.write_entry(rtc_time::now(), row);
+}
+
+VorCdiIndicator::VorCdiIndicator(Point position)
+    : Widget{{position, {screen_width, 32}}} {
+}
+
+void VorCdiIndicator::set_course(uint16_t course_deg) {
+    if (course_deg_ != course_deg) {
+        course_deg_ = course_deg;
+        set_dirty();
+    }
+}
+
+void VorCdiIndicator::set_radial(uint16_t radial_deg) {
+    if (radial_deg_ != radial_deg) {
+        radial_deg_ = radial_deg;
+        set_dirty();
+    }
+}
+
+void VorCdiIndicator::set_valid(bool valid) {
+    if (valid_ != valid) {
+        valid_ = valid;
+        set_dirty();
+    }
+}
+
+int32_t VorCdiIndicator::normalize_signed_degrees(int32_t degrees) {
+    while (degrees <= -180) {
+        degrees += 360;
+    }
+    while (degrees > 180) {
+        degrees -= 360;
+    }
+    return degrees;
+}
+
+void VorCdiIndicator::paint(Painter& painter) {
+    const auto r = screen_rect();
+    const auto theme = Theme::getInstance();
+    const auto line_color = valid_ ? theme->fg_light->foreground : theme->bg_medium->foreground;
+    const auto needle_color = valid_ ? theme->fg_red->foreground : theme->bg_medium->foreground;
+
+    // Clear background so old needle positions don't linger.
+    painter.fill_rectangle(r, theme->bg_darkest->background);
+
+    const auto center_x = static_cast<Coord>(r.left() + r.width() / 2);
+    const auto center_y = static_cast<Coord>(r.top() + r.height() / 2);
+
+    // Horizontal scale line.
+    painter.draw_hline({static_cast<Coord>(r.left() + 8), center_y}, r.width() - 16, line_color);
+
+    // Evenly spaced tick marks, longer at center.
+    constexpr int32_t tick_spacing = 40;
+    for (int32_t tick = -2; tick <= 2; ++tick) {
+        const auto x = static_cast<Coord>(center_x + tick * tick_spacing);
+        const auto len = (tick == 0) ? 14 : 8;
+        painter.draw_vline({x, static_cast<Coord>(center_y - len / 2)}, len, line_color);
+    }
+
+    // Deviation needle, clamped to +/-10 degrees full-scale.
+    const int32_t deviation = normalize_signed_degrees(static_cast<int32_t>(radial_deg_) - static_cast<int32_t>(course_deg_));
+    const int32_t scaled = std::max<int32_t>(-10, std::min<int32_t>(10, deviation));
+    // +/-10 deg full-scale maps to +/-2 ticks (2 * tick_spacing); the division
+    // is exact for the clamped range so no rounding is needed.
+    const int16_t needle_offset = static_cast<int16_t>((scaled * (2 * tick_spacing)) / 10);
+    const auto needle_x = static_cast<Coord>(center_x + needle_offset);
+    painter.draw_vline({needle_x, static_cast<Coord>(r.top() + 4)}, r.height() - 8, needle_color);
+}
+
+VorRxView::VorRxView(NavigationView& nav)
+    : nav_{nav} {
+    add_children({&field_rf_amp,
+                  &field_lna,
+                  &field_vga,
+                  &field_volume,
+                  &field_frequency,
+                  &rssi,
+                  &channel,
+                  &audio,
+                  &labels,
+                  &text_status,
+                  &text_band,
+                  &text_next,
+                  &field_course,
+                  &text_course_unit,
+                  &field_calibration,
+                  &text_calib_unit,
+                  &text_radial,
+                  &text_flag,
+                  &text_cdi_title,
+                  &cdi_indicator,
+                  &check_log,
+                  &button_start_stop});
+
+    field_frequency.set_step(8333);
+    if (field_frequency.value() == 0) {
+        field_frequency.set_value(110'000'000);
+    }
+
+    field_course.set_value(0);
+    field_course.on_change = [this](int32_t) {
+        update_cdi();
+    };
+
+    field_calibration.set_value(0);
+    field_calibration.on_change = [this](int32_t) {
+        refresh_radial();
+    };
+
+    logger = std::make_unique<VorLogger>();
+    check_log.set_value(logging_);
+    check_log.on_select = [this](Checkbox&, bool v) {
+        logging_ = v;
+        update_logging();
+    };
+    update_logging();
+
+    button_start_stop.on_select = [this](Button&) {
+        if (running_) {
+            stop_receiver();
+        } else {
+            start_receiver();
+        }
+    };
+
+    start_receiver();
+}
+
+VorRxView::~VorRxView() {
+    stop_receiver();
+}
+
+void VorRxView::focus() {
+    field_frequency.focus();
+}
+
+void VorRxView::start_receiver() {
+    baseband::run_prepared_image(portapack::memory::map::m4_code.base());
+    baseband::set_vor_config(true);
+
+    radial_filter_valid_ = false;
+    flag_state_ = 0;
+
+    receiver_model.set_hidden_offset(0);
+    receiver_model.set_modulation(ReceiverModel::Mode::AMAudio);
+    receiver_model.set_frequency_step(8333);
+    receiver_model.set_sampling_rate(3072000);
+    receiver_model.set_baseband_bandwidth(1750000);
+    receiver_model.enable();
+
+    // enable() applies the AM configuration, which forces the audio codec to
+    // 12 kHz. The VOR baseband keeps its channel at 48 kHz (so the 9960 Hz
+    // subcarrier stays representable), so re-assert 48 kHz audio afterwards.
+    audio::set_rate(audio::Rate::Hz_48000);
+    audio::output::start();
+
+    running_ = true;
+    update_status();
+}
+
+void VorRxView::stop_receiver() {
+    if (!running_) {
+        return;
+    }
+
+    running_ = false;
+    baseband::set_vor_config(false);
+    receiver_model.disable();
+    baseband::shutdown();
+    audio::output::stop();
+    update_status();
+}
+
+void VorRxView::update_status() {
+    text_status.set(running_ ? "Running" : "Idle");
+    button_start_stop.set_text(running_ ? "Stop" : "Start");
+}
+
+void VorRxView::update_logging() {
+    if (logger && logging_) {
+        logger->append(logs_dir / (std::string("VOR_") + to_string_timestamp(rtc_time::now()) + ".CSV"));
+        logger->write_header();
+    }
+}
+
+void VorRxView::on_vor_status(const VorRxStatusDataMessage& message) {
+    if (!running_) {
+        return;
+    }
+
+    last_radial_deg_ = message.radial_deg;
+    last_valid_ = message.valid;
+    have_status_ = true;
+
+    if (message.valid) {
+        last_radial_deg_ = smooth_radial(message.radial_deg);
+    } else {
+        // Drop the filter history so a fresh lock doesn't drag from stale data.
+        radial_filter_valid_ = false;
+    }
+
+    text_next.set(message.valid ? "Locked" : "Searching");
+    refresh_radial();
+    if (logger && logging_) {
+        VorRxStatusDataMessage calibrated = message;
+        calibrated.radial_deg = calibrated_radial(last_radial_deg_);
+        calibrated.to_from = (flag_state_ == 2);
+        logger->log_status(calibrated, field_course.value());
+    }
+}
+
+uint16_t VorRxView::smooth_radial(uint16_t radial_deg) {
+    // Wrapped exponential moving average. At ~10 updates/s blending 20% of each
+    // new reading (alpha = 0.8) gives a ~0.5 s time constant while cutting the
+    // jitter by ~3x. Stepping along the shortest arc in 1/64 deg fixed point
+    // handles the 0/360 deg wrap without any trig (which would otherwise pull
+    // newlib's float sin/cos/atan2 argument-reduction code into flash ROM).
+    constexpr int32_t scale = 64;
+    constexpr int32_t full_circle = 360 * scale;
+    const int32_t target = static_cast<int32_t>(radial_deg) * scale;
+
+    if (!radial_filter_valid_) {
+        radial_smoothed_fp_ = target;
+        radial_filter_valid_ = true;
+    } else {
+        int32_t diff = (target - radial_smoothed_fp_) % full_circle;
+        if (diff < -full_circle / 2) {
+            diff += full_circle;
+        } else if (diff > full_circle / 2) {
+            diff -= full_circle;
+        }
+        // 20% step toward the new reading (1 - alpha).
+        radial_smoothed_fp_ += diff / 5;
+        radial_smoothed_fp_ %= full_circle;
+        if (radial_smoothed_fp_ < 0) {
+            radial_smoothed_fp_ += full_circle;
+        }
+    }
+
+    return static_cast<uint16_t>((radial_smoothed_fp_ + scale / 2) / scale) % 360;
+}
+
+uint16_t VorRxView::calibrated_radial(uint16_t radial_deg) const {
+    int32_t value = (static_cast<int32_t>(radial_deg) + field_calibration.value()) % 360;
+    if (value < 0) {
+        value += 360;
+    }
+    return static_cast<uint16_t>(value);
+}
+
+void VorRxView::refresh_radial() {
+    if (!have_status_) {
+        return;
+    }
+
+    const uint16_t radial = calibrated_radial(last_radial_deg_);
+    text_radial.set(to_string_dec_uint(radial, 3) + " deg");
+    text_flag.set(to_from_label(radial));
+    cdi_indicator.set_radial(radial);
+    cdi_indicator.set_valid(last_valid_);
+}
+
+const char* VorRxView::to_from_label(uint16_t radial_deg) {
+    if (!last_valid_) {
+        flag_state_ = 0;
+        return "--";
+    }
+
+    // TO/FROM is set by the selected OBS course relative to the received radial,
+    // not by the radial alone. Take the difference wrapped to [-180, 180]: the
+    // switch is at the 90 deg abeam point. |diff| < 90 means the selected course
+    // leads away from the station (FROM); |diff| > 90 means toward it (TO).
+    int32_t diff = (static_cast<int32_t>(radial_deg) - field_course.value() + 540) % 360 - 180;
+    const int32_t adiff = (diff < 0) ? -diff : diff;
+
+    // Hysteresis: hold the current flag within a +/-5 deg dead zone around the
+    // 90 deg boundary so noise near abeam doesn't rapidly toggle TO/FROM.
+    if (adiff < 85) {
+        flag_state_ = 1;  // FROM
+    } else if (adiff > 95) {
+        flag_state_ = 2;  // TO
+    }
+
+    if (flag_state_ == 1) return "FROM";
+    if (flag_state_ == 2) return "TO";
+    return "--";  // abeam / ambiguous
+}
+
+void VorRxView::update_cdi() {
+    cdi_indicator.set_course(field_course.value());
+}
+
+}  // namespace ui::external_app::vor_rx

firmware/application/external/vor_rx/ui_vor_rx.hpp

@@ -0,0 +1,200 @@
+/*
+ * Copyright (C) 2026 PortaPack Mayhem
+ *
+ * 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; if not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __UI_VOR_RX_H__
+#define __UI_VOR_RX_H__
+
+#include "audio.hpp"
+#include "baseband_api.hpp"
+#include "file_path.hpp"
+#include "log_file.hpp"
+#include "rtc_time.hpp"
+#include "portapack.hpp"
+#include "ui.hpp"
+#include "ui_audio.hpp"
+#include "ui_channel.hpp"
+#include "ui_freq_field.hpp"
+#include "ui_navigation.hpp"
+#include "ui_receiver.hpp"
+#include "ui_rssi.hpp"
+
+namespace ui::external_app::vor_rx {
+
+class VorLogger {
+   public:
+    Optional<File::Error> append(const std::filesystem::path& filename) {
+        return log_file.append(filename);
+    }
+
+    void write_header();
+    void log_status(const VorRxStatusDataMessage& message, uint16_t course_deg);
+
+   private:
+    LogFile log_file{};
+};
+
+class VorCdiIndicator : public Widget {
+   public:
+    VorCdiIndicator(Point position);
+
+    void set_course(uint16_t course_deg);
+    void set_radial(uint16_t radial_deg);
+    void set_valid(bool valid);
+
+    void paint(Painter& painter) override;
+
+   private:
+    static int32_t normalize_signed_degrees(int32_t degrees);
+
+    uint16_t course_deg_{0};
+    uint16_t radial_deg_{0};
+    bool valid_{false};
+};
+
+class VorRxView : public View {
+   public:
+    VorRxView(NavigationView& nav);
+    ~VorRxView();
+
+    void focus() override;
+
+    std::string title() const override { return "VOR RX"; }
+
+   private:
+    void start_receiver();
+    void stop_receiver();
+    void update_status();
+    void on_vor_status(const VorRxStatusDataMessage& message);
+    void update_cdi();
+    void refresh_radial();
+    uint16_t calibrated_radial(uint16_t radial_deg) const;
+    uint16_t smooth_radial(uint16_t radial_deg);
+    const char* to_from_label(uint16_t radial_deg);
+    void update_logging();
+
+    NavigationView& nav_;
+    bool running_{false};
+    bool logging_{false};
+    bool have_status_{false};
+    uint16_t last_radial_deg_{0};
+    bool last_valid_{false};
+    uint8_t flag_state_{0};  // TO/FROM hysteresis: 0=unknown, 1=FROM, 2=TO
+    // Circular exponential moving average of the radial. Each 100 ms estimate
+    // is noisy (~10 deg std even when locked), so blend it along the shortest
+    // arc in 1/64 deg fixed point to average correctly across the 0/360 deg
+    // wrap without trig.
+    bool radial_filter_valid_{false};
+    int32_t radial_smoothed_fp_{0};
+
+    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)}};
+    AudioVolumeField field_volume{
+        {screen_width - 2 * 8, UI_POS_Y(0)}};
+
+    RSSI rssi{
+        {UI_POS_X(21), 0, UI_POS_WIDTH_REMAINING(21) - UI_POS_WIDTH(2), 4}};
+    Channel channel{
+        {UI_POS_X(21), 5, UI_POS_WIDTH_REMAINING(21) - UI_POS_WIDTH(2), 4}};
+    Audio audio{
+        {UI_POS_X(21), 10, UI_POS_WIDTH_REMAINING(21) - UI_POS_WIDTH(2), 4}};
+
+    NumberField field_course{
+        {UI_POS_X(14), UI_POS_Y(4)},
+        3,
+        {0, 359},
+        1,
+        '0'};
+
+    NumberField field_calibration{
+        {UI_POS_X(14), UI_POS_Y(7)},
+        4,
+        {-359, 359},
+        1,
+        ' '};
+
+    Labels labels{
+        {{UI_POS_X(0), UI_POS_Y(1)}, "Status:", Theme::getInstance()->fg_light->foreground},
+        {{UI_POS_X(0), UI_POS_Y(2)}, "VOR Band:", Theme::getInstance()->fg_light->foreground},
+        {{UI_POS_X(0), UI_POS_Y(3)}, "Decoder:", Theme::getInstance()->fg_light->foreground},
+        {{UI_POS_X(0), UI_POS_Y(4)}, "Course (OBS):", Theme::getInstance()->fg_light->foreground},
+        {{UI_POS_X(0), UI_POS_Y(5)}, "Rec. Radial:", Theme::getInstance()->fg_light->foreground},
+        {{UI_POS_X(0), UI_POS_Y(6)}, "Flag:", Theme::getInstance()->fg_light->foreground},
+        {{UI_POS_X(0), UI_POS_Y(7)}, "Calibration:", Theme::getInstance()->fg_light->foreground}};
+
+    Text text_status{
+        {UI_POS_X(14), UI_POS_Y(1), UI_POS_WIDTH_REMAINING(14), UI_POS_HEIGHT(1)},
+        "Idle"};
+    Text text_band{
+        {UI_POS_X(14), UI_POS_Y(2), UI_POS_WIDTH_REMAINING(14), UI_POS_HEIGHT(1)},
+        "108.00-117.95MHz"};
+    Text text_next{
+        {UI_POS_X(14), UI_POS_Y(3), UI_POS_WIDTH_REMAINING(14), UI_POS_HEIGHT(1)},
+        "Pending"};
+    Text text_course_unit{
+        {UI_POS_X(18), UI_POS_Y(4), UI_POS_WIDTH_REMAINING(18), UI_POS_HEIGHT(1)},
+        "deg"};
+    Text text_radial{
+        {UI_POS_X(14), UI_POS_Y(5), UI_POS_WIDTH_REMAINING(14), UI_POS_HEIGHT(1)},
+        "--"};
+    Text text_flag{
+        {UI_POS_X(14), UI_POS_Y(6), UI_POS_WIDTH_REMAINING(14), UI_POS_HEIGHT(1)},
+        "--"};
+    Text text_calib_unit{
+        {UI_POS_X(19), UI_POS_Y(7), UI_POS_WIDTH_REMAINING(19), UI_POS_HEIGHT(1)},
+        "deg"};
+
+    Text text_cdi_title{
+        {UI_POS_X(0), UI_POS_Y(9), UI_POS_WIDTH_REMAINING(0), UI_POS_HEIGHT(1)},
+        "Course Deviation Indicator"};
+
+    VorCdiIndicator cdi_indicator{
+        {UI_POS_X(0), UI_POS_Y(10)}};
+
+    std::unique_ptr<VorLogger> logger{};
+
+    Button button_start_stop{
+        {UI_POS_X(9), UI_POS_Y(14), UI_POS_WIDTH(12), UI_POS_HEIGHT(2)},
+        "Start"};
+
+    Checkbox check_log{
+        {UI_POS_X(7), UI_POS_Y(17)},
+        3,
+        "LOG to SD Card",
+        true};
+
+    MessageHandlerRegistration message_handler_vor_status{
+        Message::ID::VorRxStatusData,
+        [this](const Message* p) {
+            const auto message = *reinterpret_cast<const VorRxStatusDataMessage*>(p);
+            on_vor_status(message);
+        }};
+};
+
+}  // namespace ui::external_app::vor_rx
+
+#endif  // __UI_VOR_RX_H__

firmware/application/external/vor_tx/main.cpp

@@ -0,0 +1,85 @@
+/*
+ * Copyright (C) 2026 PortaPack Mayhem
+ *
+ * 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; if not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "ui.hpp"
+#include "ui_vor_tx.hpp"
+#include "ui_navigation.hpp"
+#include "external_app.hpp"
+
+namespace ui::external_app::vor_tx {
+
+void initialize_app(ui::NavigationView& nav) {
+    nav.push<VorTxView>();
+}
+
+}  // namespace ui::external_app::vor_tx
+
+extern "C" {
+
+__attribute__((section(".external_app.app_vor_tx.application_information"), used)) application_information_t _application_information_vor_tx = {
+    /*.memory_location = */ (uint8_t*)0x00000000,
+    /*.externalAppEntry = */ ui::external_app::vor_tx::initialize_app,
+    /*.header_version = */ CURRENT_HEADER_VERSION,
+    /*.app_version = */ VERSION_MD5,
+
+    /*.app_name = */ "VOR TX",
+    /*.bitmap_data = */ {
+        0x00,
+        0x00,
+        0x00,
+        0x00,
+        0x00,
+        0x00,
+        0x80,
+        0x01,
+        0xC0,
+        0x03,
+        0xE0,
+        0x07,
+        0xF0,
+        0x0F,
+        0xF8,
+        0x1F,
+        0xF8,
+        0x1F,
+        0xF0,
+        0x0F,
+        0xE0,
+        0x07,
+        0xC0,
+        0x03,
+        0x80,
+        0x01,
+        0x00,
+        0x00,
+        0x00,
+        0x00,
+        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_vor_tx */ {'P', 'V', 'T', 'X'},
+    /*.m4_app_offset = */ 0x00000000,  // will be filled at compile time
+};
+}

firmware/application/external/vor_tx/ui_vor_tx.cpp

@@ -0,0 +1,133 @@
+/*
+ * Copyright (C) 2026 PortaPack Mayhem
+ *
+ * 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; if not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "ui_vor_tx.hpp"
+
+#include "string_format.hpp"
+#include "ui_textentry.hpp"
+
+using namespace portapack;
+using namespace ui;
+
+namespace ui::external_app::vor_tx {
+
+VorTxView::VorTxView(NavigationView& nav)
+    : nav_{nav} {
+    baseband::run_prepared_image(portapack::memory::map::m4_code.base());
+
+    add_children({&labels,
+                  &field_radial,
+                  &text_radial_unit,
+                  &check_ident,
+                  &button_ident_text,
+                  &text_status,
+                  &tx_view});
+
+    field_radial.set_value(radial_);
+    field_radial.on_change = [this](int32_t v) {
+        radial_ = v;
+        if (transmitting_) {
+            update_config();
+        }
+    };
+
+    check_ident.set_value(ident_);
+    check_ident.on_select = [this](Checkbox&, bool v) {
+        ident_ = v;
+        if (transmitting_) {
+            update_config();
+        }
+    };
+
+    button_ident_text.set_text(ident_text_);
+    button_ident_text.on_select = [this](Button&) {
+        text_prompt(nav_, ident_text_, 7, ENTER_KEYBOARD_MODE_ALPHA, [this](std::string&) {
+            button_ident_text.set_text(ident_text_);
+            if (transmitting_) {
+                update_config();
+            }
+        });
+    };
+
+    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);
+        };
+    };
+
+    tx_view.on_start = [this]() {
+        if (tx_acknowledged_) {
+            start_tx();
+            return;
+        }
+        nav_.display_modal(
+            "TX WARNING",
+            "VOR is an aviation nav\nband! TX only into a\ndummy load.",
+            YESNO,
+            [this](bool choice) {
+                if (choice) {
+                    tx_acknowledged_ = true;
+                    start_tx();
+                } else {
+                    tx_view.set_transmitting(false);
+                }
+            });
+    };
+
+    tx_view.on_stop = [this]() {
+        stop_tx();
+    };
+}
+
+VorTxView::~VorTxView() {
+    transmitter_model.disable();
+    baseband::shutdown();
+}
+
+void VorTxView::focus() {
+    tx_view.focus();
+}
+
+void VorTxView::update_config() {
+    baseband::set_vor_tx_config(static_cast<uint16_t>(radial_), ident_, ident_text_);
+}
+
+void VorTxView::start_tx() {
+    transmitter_model.set_sampling_rate(1536000);
+    transmitter_model.set_baseband_bandwidth(1750000);
+    transmitter_model.enable();
+    update_config();
+    transmitting_ = true;
+    tx_view.set_transmitting(true);
+    text_status.set("TX radial " + to_string_dec_uint(radial_));
+    set_dirty();
+}
+
+void VorTxView::stop_tx() {
+    transmitter_model.disable();
+    transmitting_ = false;
+    tx_view.set_transmitting(false);
+    text_status.set("Idle");
+    set_dirty();
+}
+
+}  // namespace ui::external_app::vor_tx

firmware/application/external/vor_tx/ui_vor_tx.hpp

@@ -0,0 +1,113 @@
+/*
+ * Copyright (C) 2026 PortaPack Mayhem
+ *
+ * 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; if not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __UI_VOR_TX_H__
+#define __UI_VOR_TX_H__
+
+#include "app_settings.hpp"
+#include "baseband_api.hpp"
+#include "portapack.hpp"
+#include "radio_state.hpp"
+#include "ui.hpp"
+#include "ui_navigation.hpp"
+#include "ui_receiver.hpp"
+#include "ui_transmitter.hpp"
+
+namespace ui::external_app::vor_tx {
+
+class VorTxView : public View {
+   public:
+    VorTxView(NavigationView& nav);
+    ~VorTxView();
+
+    void focus() override;
+
+    std::string title() const override { return "VOR TX"; }
+
+   private:
+    void start_tx();
+    void stop_tx();
+    void update_config();
+
+    NavigationView& nav_;
+    bool transmitting_{false};
+    bool tx_acknowledged_{false};
+
+    uint32_t radial_{0};
+    bool ident_{true};
+    std::string ident_text_{"VOR"};
+
+    TxRadioState radio_state_{
+        113'500'000 /* frequency */,
+        1750000 /* bandwidth */,
+        1536000 /* sampling rate */
+    };
+
+    app_settings::SettingsManager settings_{
+        "tx_vor",
+        app_settings::Mode::TX,
+        {
+            {"radial"sv, &radial_},
+            {"ident"sv, &ident_},
+            {"ident_text"sv, &ident_text_},
+        }};
+
+    Labels labels{
+        {{UI_POS_X(0), UI_POS_Y(1)}, "Radial:", Theme::getInstance()->fg_light->foreground},
+        {{UI_POS_X(0), UI_POS_Y(5)}, "Ident:", Theme::getInstance()->fg_light->foreground},
+        {{UI_POS_X(0), UI_POS_Y(8)}, "Status:", Theme::getInstance()->fg_light->foreground},
+        {{UI_POS_X(0), UI_POS_Y(10)}, "Lab use: set any freq &", Theme::getInstance()->fg_light->foreground},
+        {{UI_POS_X(0), UI_POS_Y(11)}, "TX into a dummy load.", Theme::getInstance()->fg_light->foreground}};
+
+    NumberField field_radial{
+        {UI_POS_X(8), UI_POS_Y(1)},
+        3,
+        {0, 359},
+        1,
+        '0'};
+
+    Text text_radial_unit{
+        {UI_POS_X(12), UI_POS_Y(1), UI_POS_WIDTH(4), UI_POS_HEIGHT(1)},
+        "deg"};
+
+    Checkbox check_ident{
+        {UI_POS_X(0), UI_POS_Y(3)},
+        13,
+        "CW identifier",
+        true};
+
+    Button button_ident_text{
+        {UI_POS_X(8), UI_POS_Y(5), UI_POS_WIDTH(10), UI_POS_HEIGHT(2)},
+        "VOR"};
+
+    Text text_status{
+        {UI_POS_X(8), UI_POS_Y(8), UI_POS_WIDTH_REMAINING(8), UI_POS_HEIGHT(1)},
+        "Idle"};
+
+    TransmitterView tx_view{
+        (int16_t)UI_POS_Y_BOTTOM(4),
+        8333,
+        1750000};
+};
+
+}  // namespace ui::external_app::vor_tx
+
+#endif  // __UI_VOR_TX_H__

firmware/application/file_path.cpp

@@ -57,4 +57,5 @@ const std::filesystem::path macaddress_dir = u"MACADDRESS";
 const std::filesystem::path splash_dot_bmp = u"/splash.bmp";
 const std::filesystem::path keeloq_keys_dir = u"KEELOQKEYS";
 const std::filesystem::path keeloq_remotes_dir = u"KEELOQREMOTES";
+const std::filesystem::path secplus_dir = u"SECPLUS";
 const std::filesystem::path epirb_dir = u"EPIRB";

firmware/application/file_path.hpp

@@ -58,6 +58,7 @@ 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;
+extern const std::filesystem::path secplus_dir;
 extern const std::filesystem::path epirb_dir;
 
 extern const std::filesystem::path splash_dot_bmp;

firmware/application/hackrf_core_mini.c

@@ -1,5 +1,6 @@
 #include "gpio_lpc.h"
 #include "gpio.h"
+#include "delay.h"
 
 typedef enum {
     LED1 = 0,
@@ -34,6 +35,15 @@ void delay_us_at_mhz(uint32_t us, uint32_t mhz) {
     delay((uint32_t)cycles64);
 }
 
+/* The application M0 core runs from BASE_M4_CLK at 200MHz. */
+void delay_us(uint32_t us) {
+    delay_us_at_mhz(us, 200);
+}
+
+void delay_ms(uint32_t ms) {
+    delay_us_at_mhz(ms * 1000, 200);
+}
+
 void led_on(const led_t led) {
     gpio_set(&gpio_led[led]);
 }

firmware/application/hw/max2831.cpp

@@ -28,10 +28,15 @@
 
 #include "max2831.hpp"
 
+#include "portapack_adc.hpp"
+
 #include "hackrf_hal.hpp"
 #include "hackrf_gpio.hpp"
 using namespace hackrf::one;
 
+#include "gpio.hpp"
+using namespace gpio_control;
+
 #include "ch.h"
 #include "hal.h"
 
@@ -103,12 +108,6 @@ void MAX2831::flush_dirty() {
 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;
@@ -157,7 +156,7 @@ void MAX2831::set_mode(const Mode mode) {
      *   RX:       ENABLE=1, RXTX=0
      *   TX:       ENABLE=1, RXTX=1
      *
-     * Note: gpio_max2831_rx_enable is the RXTX mode select pin.
+     * Note: max2831_rxtx_enable is the RXTX mode select pin.
      * RXTX=0 selects RX, RXTX=1 selects TX.
      */
 
@@ -180,26 +179,26 @@ void MAX2831::set_mode(const Mode mode) {
     switch (mode) {
         default:
         case Mode::Shutdown:
-            gpio_max2831_rx_enable.write(0); /* RXTX=0 */
-            gpio_max283x_enable.write(0);    /* ENABLE=0 */
+            max2831_rxtx_enable.setInactive(); /* RXTX=0 */
+            max283x_enable.setInactive();      /* ENABLE=0 */
             set_rssi_mux(0);
             break;
         case Mode::Standby:
-            gpio_max2831_rx_enable.write(1); /* RXTX=1 */
-            gpio_max283x_enable.write(0);    /* ENABLE=0 */
+            max2831_rxtx_enable.setActive(); /* RXTX=1 */
+            max283x_enable.setInactive();    /* ENABLE=0 */
             set_rssi_mux(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 */
+            max2831_rxtx_enable.setActive(); /* RXTX=1 for TX */
+            max283x_enable.setActive();      /* ENABLE=1 */
             set_rssi_mux(2);                 // transmit power
             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 */
-            set_rssi_mux(1);                 // RSSI
+            max2831_rxtx_enable.setInactive(); /* RXTX=0 for RX */
+            max283x_enable.setActive();        /* ENABLE=1 */
+            set_rssi_mux(1);                   // RSSI
             break;
     }
 
@@ -233,8 +232,15 @@ void MAX2831::set_lna_gain(const int_fast8_t db) {
     } else {
         gain_val = REG11_LNA_GAIN_M33;
     }
+
+    max2831_rxhp.setActive();  // Fast DC offset compensation
+
     set_reg_field(11, REG11_LNA_GAIN_MASK, gain_val);
     flush_reg(11);
+
+    chThdSleepMicroseconds(2);
+
+    max2831_rxhp.setInactive();
 }
 
 void MAX2831::set_vga_gain(const int_fast8_t db) {
@@ -243,10 +249,18 @@ void MAX2831::set_vga_gain(const int_fast8_t db) {
     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;
+
+    max2831_rxhp.setActive();  // Fast DC offset compensation
+
     set_reg_field(11, REG11_RXVGA_GAIN_MASK, value);
     flush_reg(11);
+
+    chThdSleepMicroseconds(2);
+
+    max2831_rxhp.setInactive();
 }
 
 /*
@@ -348,6 +362,16 @@ void MAX2831::set_lpf_rf_bandwidth_rx(const uint32_t bandwidth_minimum) {
 #ifdef PRALINE
     uint32_t actual_bw = bandwidth_minimum;
 
+    /* The MAX2831 internal analog low-pass filter cannot go below 1.75 MHz.
+     * For narrow-band signals (bandwidth < 1.75 MHz), we enable the custom
+     * external Anti-Aliasing (AA) filter on pin P1_14 to prevent aliasing.
+     */
+    if (actual_bw <= 1750000) {
+        gpio_control::aa_en.setActive();  // Enable external narrow AA filter
+    } else {
+        gpio_control::aa_en.setInactive();  // Disable external AA filter for wideband operations
+    }
+
     _desired_lpf_bw = actual_bw;
     if (_mode == Mode::Receive || _mode == Mode::Rx_Calibration) {
         set_lpf_bandwidth_internal(actual_bw);
@@ -361,6 +385,9 @@ void MAX2831::set_lpf_rf_bandwidth_rx(const uint32_t bandwidth_minimum) {
 
 void MAX2831::set_lpf_rf_bandwidth_tx(const uint32_t bandwidth_minimum) {
     _desired_lpf_bw = bandwidth_minimum;
+
+    gpio_control::aa_en.setInactive();  // Disable external AA filter for wideband operations
+
     if (_mode == Mode::Transmit || _mode == Mode::Tx_Calibration) {
         set_lpf_bandwidth_internal(bandwidth_minimum);
     }
@@ -454,13 +481,56 @@ void MAX2831::set_rx_buff_vcm(const size_t v) {
 }
 
 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 */
+    bool not_in_rx = (_mode != Mode::Receive && _mode != Mode::Rx_Calibration);
+
+    if (not_in_rx) {
+        max2831_rxtx_enable.setInactive();
+        max283x_enable.setActive();
+        chThdSleepMilliseconds(1);
+    }
+
+    set_rssi_mux(3);
+    chThdSleepMilliseconds(5);
+
+    uint32_t saved_cr = LPC_ADC1->CR;
+    uint32_t cr_temp = saved_cr;
+    cr_temp &= ~0xFF;
+    cr_temp |= (1 << portapack::adc1_rssi_input);
+
+    if (((cr_temp >> 8) & 0xFF) == 0) {
+        cr_temp |= (0xFF << 8);
+    }
+
+    cr_temp &= ~(1 << 16);
+    cr_temp |= (1 << 21);
+    cr_temp &= ~(7 << 24);
+    cr_temp |= (1 << 24);
+
+    LPC_ADC1->CR = cr_temp;
+
+    uint32_t val;
+    while (((val = LPC_ADC1->DR[portapack::adc1_rssi_input]) & (1UL << 31)) == 0) {
+        __asm__("nop");
+    }
+
+    uint32_t adc_raw = (val >> 6) & 0x3FF;
+
+    LPC_ADC1->CR = saved_cr;
+
+    if (not_in_rx) {
+        set_mode(_mode);
+    } else {
+        set_rssi_mux(1);
+    }
+
+    float v_adc = (adc_raw / 1023.0f) * 3.3f;
+
+    constexpr float V_25_CELSIUS = 1.185f;
+    constexpr float SLOPE = 0.003f;
+
+    float temp = 25.0f + ((v_adc - V_25_CELSIUS) / SLOPE);
+
+    return static_cast<int8_t>(std::max(-128.0f, std::min(127.0f, temp)));
 }
 
 reg_t MAX2831::read(const address_t reg_num) {

firmware/application/hw/max2837.cpp

@@ -19,12 +19,17 @@
  * Boston, MA 02110-1301, USA.
  */
 
+#ifndef PRALINE  // not praline
+
 #include "max2837.hpp"
 
 #include "hackrf_hal.hpp"
 #include "hackrf_gpio.hpp"
 using namespace hackrf::one;
 
+#include "gpio.hpp"
+using namespace gpio_control;
+
 #include "ch.h"
 #include "hal.h"
 
@@ -99,10 +104,6 @@ constexpr uint32_t pll_factor = 1.0 / (4.0 / 3.0 / reference_frequency) + 0.5;
 void MAX2837::init() {
     set_mode(Mode::Shutdown);
 
-    gpio_max283x_enable.output();
-    gpio_max2837_rxenable.output();
-    gpio_max2837_txenable.output();
-
     _map.r.tx_gain.TXVGA_GAIN_SPI_EN = 1;
     _map.r.tx_gain.TXVGA_GAIN_MSB_SPI_EN = 1;
     _map.r.tx_gain.TXVGA_GAIN_SPI = 0x00;
@@ -157,10 +158,6 @@ void MAX2837::set_tx_LO_iq_phase_calibration(const size_t v) {
     // TX calibration , Logic pins , ENABLE, RXENABLE, TXENABLE = 1,0,1 (5dec), and  Reg address 16, D1 (CAL mode 1):DO (CHIP ENABLE 1)
     set_mode(Mode::Tx_Calibration);  // write to ram 3 LOGIC Pins .
 
-    gpio_max283x_enable.output();
-    gpio_max2837_rxenable.output();
-    gpio_max2837_txenable.output();
-
     _map.r.spi_en.CAL_SPI = 1;  // Register Settings reg address 16,  D1 (CAL mode 1)
     _map.r.spi_en.EN_SPI = 1;   // Register Settings reg address 16,  DO (CHIP ENABLE 1)
     flush_one(Register::SPI_EN);
@@ -210,7 +207,7 @@ void MAX2837::set_mode(const Mode mode) {  // We set up the 3 Logic Pins ENABLE,
     _mode = mode;
 
     Mask mask = mode_mask(mode);
-    gpio_max283x_enable.write(toUType(mask) & toUType(Mask::Enable));
+    max283x_enable.write(toUType(mask) & toUType(Mask::Enable));
     gpio_max2837_rxenable.write(toUType(mask) & toUType(Mask::RxEnable));
     gpio_max2837_txenable.write(toUType(mask) & toUType(Mask::TxEnable));
 }
@@ -348,10 +345,6 @@ void MAX2837::set_rx_LO_iq_phase_calibration(const size_t v) {
     // RX calibration , Logic pins , ENABLE, RXENABLE, TXENABLE = 1,1,0 (3dec), and  Reg address 16, D1 (CAL mode 1):DO (CHIP ENABLE 1)
     set_mode(Mode::Rx_Calibration);  // write to ram 3 LOGIC Pins .
 
-    gpio_max283x_enable.output();
-    gpio_max2837_rxenable.output();
-    gpio_max2837_txenable.output();
-
     _map.r.spi_en.CAL_SPI = 1;  // Register Settings reg address 16,  D1 (CAL mode 1)
     _map.r.spi_en.EN_SPI = 1;   // Register Settings reg address 16,  DO (CHIP ENABLE 1)
     flush_one(Register::SPI_EN);
@@ -413,3 +406,5 @@ int8_t MAX2837::temp_sense() {
 }
 
 }  // namespace max2837
+
+#endif  // not PRALINE

firmware/application/hw/max2839.cpp

@@ -19,6 +19,7 @@
  * the Free Software Foundation, Inc., 51 Franklin Street,
  * Boston, MA 02110-1301, USA.
  */
+#ifndef PRALINE  // not praline
 
 #include "max2839.hpp"
 
@@ -26,6 +27,9 @@
 #include "hackrf_gpio.hpp"
 using namespace hackrf::one;
 
+#include "gpio.hpp"
+using namespace gpio_control;
+
 #include "ch.h"
 #include "hal.h"
 
@@ -100,9 +104,6 @@ static int_fast8_t requested_rx_vga_gain = 0;
 void MAX2839::init() {
     set_mode(Mode::Shutdown);
 
-    gpio_max283x_enable.output();
-    gpio_max2839_rxtx.output();
-
     _map.r.rxrf_1.MIMOmode = 1; /* enable RXINB */
 
     _map.r.pa_drv.TXVGA_GAIN_SPI_EN = 1;
@@ -129,6 +130,8 @@ void MAX2839::init() {
 
     _map.r.rssi_vga.RSSI_MODE = 1; /* RSSI independent of RXHP */
 
+    _map.r.rssi_vga.RSSI_INPUT = 0; /* Measure RSSI at VGA Output (stronger signal) */
+
     /*
      * There are two LNA band settings, but we only use one of them.
      * Switching to the other one doesn't make the overall spectrum any
@@ -150,9 +153,6 @@ void MAX2839::set_tx_LO_iq_phase_calibration(const size_t v) {
     // TX calibration , 2 x Logic pins , ENABLE, RXENABLE = 1,0, (2dec), and  Reg address 16, D1 (CAL mode 1):DO (CHIP ENABLE 1)
     set_mode(Mode::Tx_Calibration);  // write to ram 3 LOGIC Pins .
 
-    gpio_max283x_enable.output();  // max2839 has only 2 x pins + regs to decide mode.
-    gpio_max2839_rxtx.output();    // Here is combined rx & tx pin in one port.
-
     _map.r.spi_en.CAL_SPI = 1;  // Register Settings reg address 16,  D1 (CAL mode 1)
     _map.r.spi_en.EN_SPI = 1;   // Register Settings reg address 16,  DO (CHIP ENABLE 1)
     flush_one(Register::SPI_EN);
@@ -201,7 +201,7 @@ void MAX2839::set_mode(const Mode mode) {
     _mode = mode;
 
     Mask mask = mode_mask(mode);
-    gpio_max283x_enable.write(toUType(mask) & toUType(Mask::Enable));
+    max283x_enable.write(toUType(mask) & toUType(Mask::Enable));
     gpio_max2839_rxtx.write(toUType(mask) & toUType(Mask::RxTx));
 }
 
@@ -301,9 +301,8 @@ void MAX2839::configure_rx_gain() {
     }
 
     _map.r.lpf_vga_2.L = lna::gain_ordinal(lna_gain);
-    _dirty[Register::RXRF_2] = 1;
     _map.r.lpf_vga_2.VGA = vga::gain_ordinal(vga_gain);
-    _dirty[Register::LPF_VGA_2] = 1;
+    _dirty[Register::LPF_VGA_2] = 1; /* both L (LNA) and VGA live in LPF_VGA_2 */
     flush();
 }
 
@@ -390,9 +389,6 @@ void MAX2839::set_rx_LO_iq_phase_calibration(const size_t v) {
     // RX calibration , Logic pins , ENABLE, RXENABLE, TXENABLE = 1,1,0 (3dec), and  Reg address 16, D1 (CAL mode 1):DO (CHIP ENABLE 1)
     set_mode(Mode::Rx_Calibration);  // write to ram 3 LOGIC Pins .
 
-    gpio_max283x_enable.output();  // max2839 has only 2 x pins + regs to decide mode.
-    gpio_max2839_rxtx.output();    // Here is combined rx & tx pin in one port.
-
     _map.r.spi_en.CAL_SPI = 1;  // Register Settings reg address 16,  D1 (CAL mode 1)
     _map.r.spi_en.EN_SPI = 1;   // Register Settings reg address 16,  DO (CHIP ENABLE 1)
     flush_one(Register::SPI_EN);
@@ -439,4 +435,5 @@ int8_t MAX2839::temp_sense() {
     return std::min(127, (int)(value * 4.31 - 40));  // reg value is 0 to 31; possible return range is -40 C to 127 C
 }
 
-}  // namespace max2839
+}  // namespace max2839
+#endif  // not PRALINE

firmware/application/hw/rffc507x.cpp

@@ -26,9 +26,13 @@
 #include "utility.hpp"
 
 #include "hackrf_hal.hpp"
+
 #include "hackrf_gpio.hpp"
 using namespace hackrf::one;
 
+#include "gpio.hpp"
+using namespace gpio_control;
+
 #include "hal.h"
 
 #ifdef PRALINE
@@ -175,8 +179,12 @@ struct SynthConfig {
  */
 
 void RFFC507x::init() {
-    gpio_rffc5072_resetx.set();
-    gpio_rffc5072_resetx.output();
+#ifdef PRALINE
+    rf5072_mix_en.setActive();  // RF5072_MIX_EN
+#endif
+
+    rffc5072_resetx.setInactive();
+
     reset();
 
     _bus.init();
@@ -189,9 +197,9 @@ void RFFC507x::reset() {
     /* TODO: Is RESETB pin ignored if sdi_ctrl.sipin=1? Programming guide
      * description of sdi_ctrl.sipin suggests the pin is not ignored.
      */
-    gpio_rffc5072_resetx.clear();
+    rffc5072_resetx.setActive();
     halPolledDelay(ticks_during_reset);
-    gpio_rffc5072_resetx.set();
+    rffc5072_resetx.setInactive();
     halPolledDelay(ticks_after_reset);
 }
 

firmware/application/hw/rffc507x_spi.cpp

@@ -23,48 +23,44 @@
 
 #include "utility.hpp"
 
-#include "hackrf_gpio.hpp"
-using namespace hackrf::one;
+#include "gpio.hpp"
+using namespace gpio_control;
 
 namespace rffc507x {
 namespace spi {
 
 void SPI::init() {
-    gpio_rffc5072_select.set();
-    gpio_rffc5072_clock.clear();
-
-    gpio_rffc5072_select.output();
-    gpio_rffc5072_clock.output();
-    gpio_rffc5072_data.input();
-
-    gpio_rffc5072_data.clear();
+    rffc5072_select.setInactive();
+    rffc5072_clock.setInactive();
+    rffc5072_sdata.input();
+    rffc5072_sdata.setInactive();
 }
 
 inline void SPI::select(const bool active) {
-    gpio_rffc5072_select.write(!active);
+    rffc5072_select.setState(active);
 }
 
 inline void SPI::direction_out() {
-    gpio_rffc5072_data.output();
+    rffc5072_sdata.output();
 }
 
 inline void SPI::direction_in() {
-    gpio_rffc5072_data.input();
+    rffc5072_sdata.input();
 }
 
 inline void SPI::write_bit(const bit_t value) {
-    gpio_rffc5072_data.write(value);
+    rffc5072_sdata.write(value);
 }
 
 inline bit_t SPI::read_bit() {
-    return gpio_rffc5072_data.read() & 1;
+    return rffc5072_sdata.read() & 1;
 }
 
 inline bit_t SPI::transfer_bit(const bit_t bit_out) {
-    gpio_rffc5072_clock.clear();
+    rffc5072_clock.setInactive();
     write_bit(bit_out);
     const bit_t bit_in = read_bit();
-    gpio_rffc5072_clock.set();
+    rffc5072_clock.setActive();
     return bit_in;
 }
 

firmware/application/hw/touch_adc.cpp

@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
- * copyleft 2023 zxkmm AKA zix aka sommermorgentraum
+ * copyleft 2023 zxkmm
  * Copyright (C) 2023 u-foka
  *
  * This file is part of PortaPack.

firmware/application/hw/touch_adc.hpp

@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
- * copyleft 2023 zxkmm AKA zix aka sommermorgentraum
+ * copyleft 2023 zxkmm
  * Copyright (C) 2023 u-foka
  *
  * This file is part of PortaPack.

firmware/application/main.cpp

@@ -132,7 +132,6 @@ Continuous (Fox-oring)
 #include "spi_image.hpp"
 
 #include "debug.hpp"
-#include "led.hpp"
 
 #include "gcc.hpp"
 
@@ -144,6 +143,9 @@ Continuous (Fox-oring)
 #include "lpc43xx.inc"
 
 #include "rffc507x.hpp" /* c/m, avoiding initial short ON Ant_DC_Bias pulse, from cold reset  */
+
+#include "gpio.hpp"
+
 rffc507x::RFFC507x first_if;
 ui::SystemView* system_view_ptr;
 
@@ -185,6 +187,8 @@ static void event_loop() {
 int main(void) {
     rtc_reset_default();
 
+    power_control::vaa_power_on();
+
 #ifndef PRALINE      // Do not perform quick set up of GP01_RFF507X = 1 for PRALINE
     first_if.init(); /* To avoid initial short Ant_DC_Bias pulse ,we need quick set up GP01_RFF507X =1 */
 #endif

firmware/application/portapack.cpp

@@ -56,6 +56,9 @@ using asahi_kasei::ak4951::AK4951;
 #include "i2cdevmanager.hpp"
 #include "battery.hpp"
 
+#include "gpio.hpp"
+using namespace gpio_control;
+
 extern "C" {
 #include "platform_detect.h"
 
@@ -71,11 +74,9 @@ const char* init_error = nullptr;
 portapack::IO io{
     portapack::gpio_dir,
     portapack::gpio_lcd_rdx,
-    portapack::gpio_lcd_wrx,
     portapack::gpio_io_stbx,
     portapack::gpio_addr,
     portapack::gpio_lcd_te,
-    portapack::gpio_dfu,
 };
 
 portapack::BacklightCAT4004 backlight_cat4004;
@@ -99,8 +100,6 @@ AK4951 audio_codec_ak4951{i2c0, 0x12};
 ReceiverModel receiver_model;
 TransmitterModel transmitter_model;
 
-TemperatureLogger temperature_logger;
-
 bool antenna_bias{false};
 uint32_t bl_tick_counter{0};
 uint16_t touch_threshold{32};
@@ -561,12 +560,6 @@ static void initialize_boot_splash_screen() {
  */
 
 init_status_t init() {
-#ifdef PRALINE
-    /* 1. HOLD FPGA IN RESET (Active Low) */
-    // P5_2 is GPIO2[11] (FPGA CRESET)
-    palClearPad(GPIO2, 11);
-#endif
-
     set_idivc_base_clocks(cgu::CLK_SEL::IDIVC);
 
     i2c0.start(i2c_config_boot_clock);
@@ -594,9 +587,12 @@ init_status_t init() {
     }
 
     /* Cache some configuration data from persistent memory. */
+
     rtc_time::dst_init();
     chThdSleepMilliseconds(10);
 
+    power_control::core_power_on();
+
     clock_manager.init_clock_generator();
 
     i2c0.stop();

firmware/application/portapack.hpp

@@ -36,7 +36,6 @@
 
 #include "radio.hpp"
 #include "clock_manager.hpp"
-#include "temperature_logger.hpp"
 #include "theme.hpp"
 
 /* TODO: This would be better as a class to add
@@ -67,11 +66,8 @@ extern ReceiverModel receiver_model;
 extern TransmitterModel transmitter_model;
 
 extern uint32_t bl_tick_counter;
-extern bool antenna_bias;
 extern uint16_t touch_threshold;
 
-extern TemperatureLogger temperature_logger;
-
 /* Get or set the antenna_bias flag.
  * NB: Does not actually update the radio state. */
 void set_antenna_bias(const bool v);

firmware/application/radio.cpp

@@ -53,6 +53,9 @@ using namespace hackrf::one;
 #include "baseband_api.hpp"
 #include "hal.h"  // For LPC_SGPIO
 
+#include "gpio.hpp"
+using namespace gpio_control;
+
 #include <array>
 
 /* Direct access to the radio. Setting values incorrectly can damage
@@ -73,8 +76,8 @@ static constexpr uint32_t ssp_scr(
 /* MAX2831 uses 9-bit SPI transfers */
 static constexpr SPIConfig ssp_config_max283x = {
     .end_cb = NULL,
-    .ssport = gpio_max283x_select.port(),
-    .sspad = gpio_max283x_select.pad(),
+    .ssport = map_max283x_select.gpio_port,
+    .sspad = map_max283x_select.gpio_pad,
     .cr0 =
         CR0_CLOCKRATE(ssp_scr(ssp1_pclk_f, ssp1_cpsr, max283x_spi_f) + 3) | CR0_FRFSPI | CR0_DSS9BIT,
     .cpsr = ssp1_cpsr,
@@ -92,8 +95,8 @@ void set_rx_buff_vcm(const size_t v) {
 /* MAX2837/MAX2839 use 16-bit SPI transfers */
 static constexpr SPIConfig ssp_config_max283x = {
     .end_cb = NULL,
-    .ssport = gpio_max283x_select.port(),
-    .sspad = gpio_max283x_select.pad(),
+    .ssport = map_max283x_select.gpio_port,
+    .sspad = map_max283x_select.gpio_pad,
     .cr0 =
         CR0_CLOCKRATE(ssp_scr(ssp1_pclk_f, ssp1_cpsr, max283x_spi_f) + 3) | CR0_FRFSPI | CR0_DSS16BIT,
     .cpsr = ssp1_cpsr,
@@ -148,10 +151,6 @@ void init() {
     /* PRALINE uses MAX2831 transceiver */
     second_if = (max283x::MAX283x*)&second_if_max2831;
 #else
-    if (hackrf_r9) {
-        gpio_r9_not_ant_pwr.write(1);
-        gpio_r9_not_ant_pwr.output();
-    }
     second_if = hackrf_r9
                     ? (max283x::MAX283x*)&second_if_max2839
                     : (max283x::MAX283x*)&second_if_max2837;
@@ -280,9 +279,9 @@ void set_direction(const rf::Direction new_direction) {
     baseband_codec.set_mode((direction == rf::Direction::Transmit) ? max5864::Mode::Transmit : max5864::Mode::Receive);
 
     if (direction == rf::Direction::Receive)
-        led_rx.on();
+        led_rx.setActive();
     else
-        led_tx.on();
+        led_tx.setActive();
 }
 
 bool set_tuning_frequency(const rf::Frequency frequency) {
@@ -391,15 +390,11 @@ void set_baseband_rate(const uint32_t rate) {
 
 void set_antenna_bias(const bool on) {
 #ifdef PRALINE
-    /* Keep bias control inside the PRALINE RF path state machine so later
-     * band/direction/amp updates don't silently force ANT_BIAS_EN_N off.
-     * Reassert output mode here because this pin is safety-critical and
-     * direct GPIO writes on an input-configured pad have no effect. */
-    gpio_ant_bias_disable.output();
-    rf_path.set_antenna_bias(on);
+    /* Praline: P2_12 = GPIO1[12], ANT_BIAS_EN_N (active LOW) */
+    rf_path.set_ant_bias(on);
 #else
     if (hackrf_r9) {
-        gpio_r9_not_ant_pwr.write(on ? 0 : 1);
+        rf_path.set_ant_bias(on);
     } else {
         first_if.set_gpo1(on ? 0 : 1);
     }
@@ -446,8 +441,8 @@ void disable() {
     first_if.disable();
     set_rf_amp(false);
 
-    led_rx.off();
-    led_tx.off();
+    led_rx.setInactive();
+    led_tx.setInactive();
 }
 
 #ifdef PRALINE