Update version.txt

fix skip consecutive match

.github/workflows/past_version.txt

@@ -1 +1 @@
-v1.5.4
+v1.6.0

.github/workflows/version.txt

@@ -1 +1 @@
-v1.6.0
+v1.7.0

CMakeLists.txt

@@ -45,7 +45,7 @@ endif()
 set(LICENSE_PATH ${CMAKE_CURRENT_LIST_DIR}/LICENSE)
 set(HARDWARE_PATH ${CMAKE_CURRENT_LIST_DIR}/hardware)
 
-add_subdirectory(hackrf/firmware/hackrf_usb)
+add_subdirectory(hackrf-portapack)
 
 set(HACKRF_FIRMWARE_DFU_FILENAME hackrf_usb.dfu)
 set(HACKRF_FIRMWARE_BIN_FILENAME hackrf_usb_ram.bin)

README.md

@@ -39,7 +39,7 @@ The current **stable release** is on the [![GitHub release (latest by date)](htt
 ## How can I collaborate
 You can write [documentation](https://github.com/eried/portapack-mayhem/wiki), fix bugs and [answer issues](https://github.com/eried/portapack-mayhem/issues) or add new functionality. Please check the following [guide](https://github.com/eried/portapack-mayhem/wiki/How-to-collaborate) with details.
 
-Consider that the hardware and firmware has been created and maintain by a [lot](https://github.com/mossmann/hackrf/graphs/contributors) of [people](https://github.com/eried/portapack-mayhem/graphs/contributors), so always try colaborating your time and effort first. For coding related questions, if something does not fit as an issue, please join our Discord by clicking the chat badge on [top](#portapack-mayhem).
+Consider that the hardware and firmware has been created and maintain by a [lot](https://github.com/mossmann/hackrf/graphs/contributors) of [people](https://github.com/eried/portapack-mayhem/graphs/contributors), so always try collaborating your time and effort first. For coding related questions, if something does not fit as an issue, please join our Discord by clicking the chat badge on [top](#portapack-mayhem).
 
 [![Contributors](https://contrib.rocks/image?repo=eried/portapack-mayhem)](https://github.com/eried/portapack-mayhem/graphs/contributors)
 

dockerfile

@@ -14,7 +14,7 @@ COPY ./ /havocsrc
 
 #Fetch dependencies from APT
 RUN apt-get update && \
-        apt-get install -y tar wget dfu-util cmake python bzip2 curl python3 python3-yaml && \
+        apt-get install -y tar wget dfu-util cmake python bzip2 lz4 curl python3 python3-yaml && \
         apt-get -qy autoremove
 
 #Install current pip from PyPa

dockerfile-alpine

@@ -13,7 +13,7 @@ COPY ./ /havocsrc
 # Fetch dependencies from APK
 RUN echo "http://dl-cdn.alpinelinux.org/alpine/edge/testing" >> /etc/apk/repositories
 RUN apk update -U
-RUN apk add --no-cache git tar wget cmake curl bzip2 make
+RUN apk add --no-cache git tar wget cmake curl bzip2 lz4 make
 RUN apk add --no-cache dfu-util ccache icu-data-full
 RUN apk add --no-cache python3 py3-pip py3-yaml
 RUN apk add --no-cache py3-pyyaml-env-tag

dockerfile-nogit

@@ -11,7 +11,7 @@ WORKDIR /havoc/firmware
 
 # Fetch dependencies from APT
 RUN apt-get update && \
-	apt-get install -y git tar wget dfu-util cmake python3 ccache bzip2 curl && \
+	apt-get install -y git tar wget dfu-util cmake python3 ccache bzip2 liblz4-tool curl && \
 	apt-get -qy autoremove
 
 #Install current pip from PyPa

dockerfile-nogit-alpine

@@ -10,7 +10,7 @@ WORKDIR /havoc/firmware
 # Fetch dependencies from APK
 RUN echo "http://dl-cdn.alpinelinux.org/alpine/edge/testing" >> /etc/apk/repositories
 RUN apk update -U
-RUN apk add --no-cache git tar wget cmake curl bzip2 make
+RUN apk add --no-cache git tar wget cmake curl bzip2 lz4 make
 RUN apk add --no-cache dfu-util ccache icu-data-full
 RUN apk add --no-cache python3 py3-pip py3-yaml
 RUN apk add --no-cache py3-pyyaml-env-tag

firmware/CMakeLists.txt

@@ -28,6 +28,7 @@ set(CHIBIOS_PORTAPACK ${PROJECT_SOURCE_DIR}/chibios-portapack)
 set(EXTRACT_CPLD_DATA ${PROJECT_SOURCE_DIR}/tools/extract_cpld_data.py)
 set(MAKE_SPI_IMAGE ${PROJECT_SOURCE_DIR}/tools/make_spi_image.py)
 set(MAKE_IMAGE_CHUNK ${PROJECT_SOURCE_DIR}/tools/make_image_chunk.py)
+set(LZ4 lz4)
 
 set(FIRMWARE_NAME portapack-h1_h2-mayhem)
 set(FIRMWARE_FILENAME ${FIRMWARE_NAME}.bin)

firmware/application/CMakeLists.txt

@@ -155,6 +155,7 @@ set(CPPSRC
 	${COMMON}/ui_widget.cpp
 	${COMMON}/utility.cpp
 	${COMMON}/wm8731.cpp
+	${COMMON}/performance_counter.cpp
 	app_settings.cpp
 	audio.cpp
 	baseband_api.cpp
@@ -230,10 +231,13 @@ set(CPPSRC
 	apps/ui_nrf_rx.cpp
 	apps/ui_aprs_tx.cpp
 	apps/ui_bht_tx.cpp
+	apps/ui_dfu_menu.cpp
 	apps/ui_coasterp.cpp
 	apps/ui_debug.cpp
 	apps/ui_encoders.cpp
 	apps/ui_fileman.cpp
+	apps/ui_flash_utility.cpp
+	apps/ui_sd_over_usb.cpp
 	apps/ui_freqman.cpp
 	apps/ui_jammer.cpp
 	apps/ui_keyfob.cpp
@@ -317,7 +321,10 @@ set(TCSRC)
 set(TCPPSRC)
 
 # List ASM source files here
-set(ASMSRC ${PORTASM})
+set(ASMSRC
+	${PORTASM}
+	lz4.S
+)
 
 set(INCDIR ${CMAKE_CURRENT_BINARY_DIR} ${COMMON} ${PORTINC} ${KERNINC} ${TESTINC}
 	${HALINC} ${PLATFORMINC} ${BOARDINC}

firmware/application/apps/analog_audio_app.hpp

@@ -117,6 +117,7 @@ private:
 			{ " 2m ", 2000000 },
 			{ " 1m ", 1000000 },
 			{ "500k", 500000 },
+			{ "100k", 100000 },
 		}
 	};
 	

firmware/application/apps/ert_app.cpp

@@ -41,6 +41,7 @@ std::string type(Packet::Type value) {
 	case Packet::Type::Unknown:	return "???";
 	case Packet::Type::IDM:		return "IDM";
 	case Packet::Type::SCM:		return "SCM";
+	case Packet::Type::SCMPLUS:	return "SCM+";
 	}
 }
 
@@ -62,7 +63,8 @@ std::string commodity_type(CommodityType value) {
 
 void ERTLogger::on_packet(const ert::Packet& packet) {
 	const auto formatted = packet.symbols_formatted();
-	log_file.write_entry(packet.received_at(), formatted.data + "/" + formatted.errors);
+	std::string entry = ert::format::type(packet.type()) + " " + formatted.data + "/" + formatted.errors;
+	log_file.write_entry(packet.received_at(), entry);
 }
 
 const ERTRecentEntry::Key ERTRecentEntry::invalid_key { };

firmware/application/apps/replay_app.cpp

@@ -161,10 +161,16 @@ void ReplayAppView::start() {
 		sample_rate * 8,
 		baseband_bandwidth,
 		rf::Direction::Transmit,
-        rf_amp,         //  previous code line : "receiver_model.rf_amp()," was passing the same rf_amp of all Receiver Apps  
+		rf_amp,         //  previous code line : "receiver_model.rf_amp()," was passing the same rf_amp of all Receiver Apps  
 		static_cast<int8_t>(receiver_model.lna()),
 		static_cast<int8_t>(receiver_model.vga())
 	});  
+	
+	if (portapack::persistent_memory::stealth_mode()){
+		DisplaySleepMessage message;
+		EventDispatcher::send_message(message);
+	}
+	
 } 
 
 void ReplayAppView::stop(const bool do_loop) {

firmware/application/apps/soundboard_app.cpp

@@ -206,7 +206,7 @@ void SoundBoardView::refresh_list() {
 				file_list[n].string().substr(0, 30),
 				ui::Color::white(),
 				nullptr,
-				[this](){
+				[this](KeyEvent){
 					on_select_entry();
 				}
 			});

firmware/application/apps/tpms_app.cpp

@@ -35,6 +35,7 @@ namespace tpms {
 namespace format {
 
 static bool use_kpa = true;
+static bool use_celsius = true;
 
 std::string type(Reading::Type type) {
 	return to_string_dec_uint(toUType(type), 2);
@@ -45,15 +46,11 @@ std::string id(TransponderID id) {
 }
 
 std::string pressure(Pressure pressure) {
-	if(use_kpa){
-		return to_string_dec_int(pressure.kilopascal(), 3);
-	}
-	return to_string_dec_int(pressure.psi(), 3);
-	
+	return to_string_dec_int(use_kpa? pressure.kilopascal():pressure.psi(), 3);
 }
 
 std::string temperature(Temperature temperature) {
-	return to_string_dec_int(temperature.celsius(), 3);
+	return to_string_dec_int(use_celsius? temperature.celsius():temperature.fahrenheit(), 3);
 }
 
 std::string flags(Flags flags) {
@@ -111,15 +108,15 @@ void RecentEntriesTable<TPMSRecentEntries>::draw(
 	std::string line = tpms::format::type(entry.type) + " " + tpms::format::id(entry.id);
 
 	if( entry.last_pressure.is_valid() ) {
-		line += " " + tpms::format::pressure(entry.last_pressure.value());
+		line += "  " + tpms::format::pressure(entry.last_pressure.value());
 	} else {
-		line += " " "   ";
+		line += "  " "   ";
 	}
 
 	if( entry.last_temperature.is_valid() ) {
-		line += " " + tpms::format::temperature(entry.last_temperature.value());
+		line += "  " + tpms::format::temperature(entry.last_temperature.value());
 	} else {
-		line += " " "   ";
+		line += "  " "   ";
 	}
 
 	if( entry.received_count > 999 ) {
@@ -145,10 +142,12 @@ TPMSAppView::TPMSAppView(NavigationView&) {
 		&rssi,
 		&channel,
 		&options_band,
+		&options_pressure,
+		&options_temperature,	
 		&field_rf_amp,
 		&field_lna,
 		&field_vga,
-		&options_type,
+		&recent_entries_view
 	});
 
 	// load app settings
@@ -181,16 +180,19 @@ TPMSAppView::TPMSAppView(NavigationView&) {
 	};
 	options_band.set_by_value(target_frequency());
 
-	options_type.on_change = [this](size_t, int32_t i) {		
-		if (i == 0){
-			tpms::format::use_kpa = true;
-		} else if (i == 1){
-			tpms::format::use_kpa = false;
-		}	
-		update_type();
+	options_pressure.on_change = [this](size_t, int32_t i) {		
+		tpms::format::use_kpa = !i;
+		update_view();
 	};
 
-	options_type.set_selected_index(0, true);
+	options_pressure.set_selected_index(0, true);
+
+	options_temperature.on_change = [this](size_t, int32_t i) {		
+		tpms::format::use_celsius = !i;
+		update_view();
+	};
+
+	options_temperature.set_selected_index(0, true);
 
 	logger = std::make_unique<TPMSLogger>();
 	if( logger ) {
@@ -214,16 +216,8 @@ void TPMSAppView::focus() {
 	options_band.focus();
 }
 
-void TPMSAppView::update_type() {
-	if (tpms::format::use_kpa){
-		remove_child(&recent_entries_view_psi);
-		add_child(&recent_entries_view_kpa);
-		recent_entries_view_kpa.set_parent_rect(view_normal_rect);
-	} else {
-		remove_child(&recent_entries_view_kpa);
-		add_child(&recent_entries_view_psi);
-		recent_entries_view_psi.set_parent_rect(view_normal_rect);
-	}	
+void TPMSAppView::update_view() {
+	recent_entries_view.set_parent_rect(view_normal_rect);
 }
 
 void TPMSAppView::set_parent_rect(const Rect new_parent_rect) {
@@ -231,7 +225,7 @@ void TPMSAppView::set_parent_rect(const Rect new_parent_rect) {
 
 	view_normal_rect  = { 0, header_height, new_parent_rect.width(), new_parent_rect.height() - header_height };
 
-	update_type();
+	update_view();
 }
 
 void TPMSAppView::on_packet(const tpms::Packet& packet) {
@@ -244,23 +238,13 @@ void TPMSAppView::on_packet(const tpms::Packet& packet) {
 		const auto reading = reading_opt.value();
 		auto& entry = ::on_packet(recent, TPMSRecentEntry::Key { reading.type(), reading.id() });
 		entry.update(reading);
-		
-		if(tpms::format::use_kpa){
-			recent_entries_view_kpa.set_dirty();
-		} else {
-			recent_entries_view_psi.set_dirty();
-		}
+		recent_entries_view.set_dirty();
 	}
 }
 
 void TPMSAppView::on_show_list() {
-	if(tpms::format::use_kpa){
-		recent_entries_view_kpa.hidden(false);
-		recent_entries_view_kpa.focus();
-	} else {
-		recent_entries_view_psi.hidden(false);
-		recent_entries_view_psi.focus();
-	}
+	recent_entries_view.hidden(false);
+	recent_entries_view.focus();
 }
 
 void TPMSAppView::on_band_changed(const uint32_t new_band_frequency) {

firmware/application/apps/tpms_app.hpp

@@ -144,7 +144,7 @@ private:
 		}
 	};
 
-	OptionsField options_type {
+	OptionsField options_pressure {
 		{ 5 * 8, 0 * 16 },
 		3,
 		{
@@ -153,6 +153,15 @@ private:
 		}
 	};
 
+	OptionsField options_temperature {
+		{ 9 * 8, 0 * 16 },
+		1,
+		{
+			{ "C", 0 },
+			{ "F", 1 }
+		}
+	};
+
 	RFAmpField field_rf_amp {
 		{ 13 * 8, 0 * 16 }
 	};
@@ -168,31 +177,21 @@ private:
 	TPMSRecentEntries recent { };
 	std::unique_ptr<TPMSLogger> logger { };
 
-	const RecentEntriesColumns columns_kpa { {
+	const RecentEntriesColumns columns { {
 		{ "Tp", 2 },
 		{ "ID", 8 },
-		{ "kPa", 3 },
-		{ "C", 3 },
+		{ "Pres", 4 },
+		{ "Temp", 4 },
 		{ "Cnt", 3 },
 		{ "Fl", 2 },
 	} };
-	TPMSRecentEntriesView recent_entries_view_kpa { columns_kpa, recent };
-
-	const RecentEntriesColumns columns_psi { {
-		{ "Tp", 2 },
-		{ "ID", 8 },
-		{ "PSI", 3 },
-		{ "C", 3 },
-		{ "Cnt", 3 },
-		{ "Fl", 2 },
-	} };
-	TPMSRecentEntriesView recent_entries_view_psi { columns_psi, recent };
+	TPMSRecentEntriesView recent_entries_view { columns, recent };
 
 	uint32_t target_frequency_ = initial_target_frequency;
 
 	void on_packet(const tpms::Packet& packet);
 	void on_show_list();
-	void update_type();
+	void update_view();
 
 	void on_band_changed(const uint32_t new_band_frequency);
 

firmware/application/apps/ui_debug.cpp

@@ -266,7 +266,9 @@ bool ControlsSwitchesWidget::on_key(const KeyEvent key) {
 }
 
 void ControlsSwitchesWidget::paint(Painter& painter) {
-	const std::array<Rect, 7> button_rects { {
+	const auto pos = screen_pos();
+
+	const std::array<Rect, 8> button_rects { {
 		{ 64, 32, 16, 16 }, // Right
 		{  0, 32, 16, 16 }, // Left
 		{ 32, 64, 16, 16 }, // Down
@@ -274,27 +276,63 @@ void ControlsSwitchesWidget::paint(Painter& painter) {
 		{ 32, 32, 16, 16 }, // Select
 		{ 16, 96, 16, 16 }, // Encoder phase 0
 		{ 48, 96, 16, 16 }, // Encoder phase 1
+		{ 96,  0, 16, 16 }, // Dfu
 	} };
-	const auto pos = screen_pos();
-	auto switches_raw = control::debug::switches();
-	auto switches_debounced = get_switches_state().to_ulong();
-	auto switches_event = key_event_mask;
 
 	for(const auto r : button_rects) {
-		const auto c =
-			((switches_event & 1) ?
-				Color::red() :
-				((switches_debounced & 1) ?
-					Color::green() :
-					((switches_raw & 1) ?
-						Color::yellow() :
-						Color::blue()
-					)
-				)
-			);
-		painter.fill_rectangle(r + pos, c);
+		painter.fill_rectangle(r + pos, Color::blue());
+	}
+
+	const std::array<Rect, 8> raw_rects { {
+		{ 64 + 1, 32 + 1, 16 - 2, 16 - 2 }, // Right
+		{  0 + 1, 32 + 1, 16 - 2, 16 - 2 }, // Left
+		{ 32 + 1, 64 + 1, 16 - 2, 16 - 2 }, // Down
+		{ 32 + 1,  0 + 1, 16 - 2, 16 - 2 }, // Up
+		{ 32 + 1, 32 + 1, 16 - 2, 16 - 2 }, // Select
+		{ 16 + 1, 96 + 1, 16 - 2, 16 - 2 }, // Encoder phase 0
+		{ 48 + 1, 96 + 1, 16 - 2, 16 - 2 }, // Encoder phase 1
+		{ 96 + 1,  0 + 1, 16 - 2, 16 - 2 }, // Dfu
+	} };
+
+	auto switches_raw = control::debug::switches();
+	for(const auto r : raw_rects) {
+		if (switches_raw & 1)
+			painter.fill_rectangle(r + pos, Color::yellow());
+
 		switches_raw >>= 1;
+	}
+
+	const std::array<Rect, 6> debounced_rects { {
+		{ 64 + 2, 32 + 2, 16 - 4, 16 - 4 }, // Right
+		{  0 + 2, 32 + 2, 16 - 4, 16 - 4 }, // Left
+		{ 32 + 2, 64 + 2, 16 - 4, 16 - 4 }, // Down
+		{ 32 + 2,  0 + 2, 16 - 4, 16 - 4 }, // Up
+		{ 32 + 2, 32 + 2, 16 - 4, 16 - 4 }, // Select
+		{ 96 + 2,  0 + 2, 16 - 4, 16 - 4 }, // Dfu
+	} };
+
+	auto switches_debounced = get_switches_state().to_ulong();
+	for(const auto r : debounced_rects) {
+		if (switches_debounced & 1)
+			painter.fill_rectangle(r + pos, Color::green());
+
 		switches_debounced >>= 1;
+	}
+
+	const std::array<Rect, 6> events_rects { {
+		{ 64 + 3, 32 + 3, 16 - 6, 16 - 6 }, // Right
+		{  0 + 3, 32 + 3, 16 - 6, 16 - 6 }, // Left
+		{ 32 + 3, 64 + 3, 16 - 6, 16 - 6 }, // Down
+		{ 32 + 3,  0 + 3, 16 - 6, 16 - 6 }, // Up
+		{ 32 + 3, 32 + 3, 16 - 6, 16 - 6 }, // Select
+		{ 96 + 3,  0 + 3, 16 - 6, 16 - 6 }, // Dfu
+	} };
+
+	auto switches_event = key_event_mask;
+	for(const auto r : events_rects) {
+		if (switches_event & 1)
+			painter.fill_rectangle(r + pos, Color::red());
+
 		switches_event >>= 1;
 	}
 }

firmware/application/apps/ui_dfu_menu.cpp

@@ -0,0 +1,99 @@
+/*
+ * Copyright (C) 2023 Bernd Herzog
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "ui_dfu_menu.hpp"
+#include "portapack_shared_memory.hpp"
+#include "performance_counter.hpp"
+
+namespace ui {
+
+DfuMenu::DfuMenu(NavigationView& nav) : nav_ (nav) {
+	add_children({
+		&text_head,
+		&labels,
+		&text_info_line_1,
+		&text_info_line_2,
+		&text_info_line_3,
+		&text_info_line_4,
+		&text_info_line_5,
+		&text_info_line_6,
+		&text_info_line_7,
+		&text_info_line_8
+	});
+}
+
+void DfuMenu::paint(Painter& painter) {
+	auto utilisation = get_cpu_utilisation_in_percent();
+
+	text_info_line_1.set(to_string_dec_uint(chCoreStatus(), 6));
+	text_info_line_2.set(to_string_dec_uint((uint32_t)get_free_stack_space(), 6));
+	text_info_line_3.set(to_string_dec_uint(utilisation, 6));
+	text_info_line_4.set(to_string_dec_uint(shared_memory.m4_heap_usage, 6));
+	text_info_line_5.set(to_string_dec_uint(shared_memory.m4_stack_usage, 6));
+	text_info_line_6.set(to_string_dec_uint(shared_memory.m4_cpu_usage, 6));
+	text_info_line_7.set(to_string_dec_uint(shared_memory.m4_buffer_missed, 6));
+	text_info_line_8.set(to_string_dec_uint(chTimeNow()/1000, 6));
+
+	constexpr auto margin = 5;
+	constexpr auto lines = 8 + 2;
+
+	painter.fill_rectangle(
+		{
+			{6 * CHARACTER_WIDTH - margin, 3 * LINE_HEIGHT - margin},
+			{15 * CHARACTER_WIDTH + margin * 2, lines * LINE_HEIGHT + margin * 2}
+		},
+		ui::Color::black()
+	);
+
+	painter.fill_rectangle(
+		{
+			{5 * CHARACTER_WIDTH - margin, 3 * LINE_HEIGHT - margin},
+			{CHARACTER_WIDTH, lines * LINE_HEIGHT + margin * 2}
+		},
+		ui::Color::dark_cyan()
+	);
+
+	painter.fill_rectangle(
+		{
+			{21 * CHARACTER_WIDTH + margin, 3 * LINE_HEIGHT - margin},
+			{CHARACTER_WIDTH, lines * LINE_HEIGHT + margin * 2}
+		},
+		ui::Color::dark_cyan()
+	);
+
+	painter.fill_rectangle(
+		{
+			{5 * CHARACTER_WIDTH - margin, 3 * LINE_HEIGHT - margin - 8},
+			{17 * CHARACTER_WIDTH + margin * 2, 8}
+		},
+		ui::Color::dark_cyan()
+	);
+
+	painter.fill_rectangle(
+		{
+			{5 * CHARACTER_WIDTH - margin, (lines+3) * LINE_HEIGHT + margin},
+			{17 * CHARACTER_WIDTH + margin * 2, 8}
+		},
+		ui::Color::dark_cyan()
+	);
+}
+
+} /* namespace ui */

firmware/application/apps/ui_dfu_menu.hpp

@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2023 Bernd Herzog
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __UI_DFU_MENU_H__
+#define __UI_DFU_MENU_H__
+
+#include <cstdint>
+
+#include "ui_widget.hpp"
+#include "event_m0.hpp"
+#include "debug.hpp"
+#include "string_format.hpp"
+
+#define LINE_HEIGHT 16
+#define CHARACTER_WIDTH 8
+
+namespace ui {
+class NavigationView;
+
+class DfuMenu : public View {
+public:
+	DfuMenu(NavigationView& nav);
+	~DfuMenu() = default;
+
+	void paint(Painter& painter) override;
+
+private:
+	NavigationView& nav_;
+	
+	Text text_head {{ 6 * CHARACTER_WIDTH, 3 * LINE_HEIGHT, 11 * CHARACTER_WIDTH, 1 * LINE_HEIGHT }, "Performance"};
+
+	Labels labels {
+		{ { 6 * CHARACTER_WIDTH, 5 * LINE_HEIGHT }, "M0 heap:", Color::dark_cyan() },
+		{ { 6 * CHARACTER_WIDTH, 6 * LINE_HEIGHT }, "M0 stack:", Color::dark_cyan() },
+		{ { 6 * CHARACTER_WIDTH, 7 * LINE_HEIGHT }, "M0 cpu %:", Color::dark_cyan() },
+		{ { 6 * CHARACTER_WIDTH, 8 * LINE_HEIGHT }, "M4 heap:", Color::dark_cyan() },
+		{ { 6 * CHARACTER_WIDTH, 9 * LINE_HEIGHT }, "M4 stack:", Color::dark_cyan() },
+		{ { 6 * CHARACTER_WIDTH,10 * LINE_HEIGHT }, "M4 cpu %:", Color::dark_cyan() },
+		{ { 6 * CHARACTER_WIDTH,11 * LINE_HEIGHT }, "M4 miss:", Color::dark_cyan() },
+		{ { 6 * CHARACTER_WIDTH,12 * LINE_HEIGHT }, "uptime:", Color::dark_cyan() }
+	};
+
+	Text text_info_line_1 {{ 15 * CHARACTER_WIDTH, 5 * LINE_HEIGHT, 5 * CHARACTER_WIDTH, 1 * LINE_HEIGHT }, ""};
+	Text text_info_line_2 {{ 15 * CHARACTER_WIDTH, 6 * LINE_HEIGHT, 5 * CHARACTER_WIDTH, 1 * LINE_HEIGHT }, ""};
+	Text text_info_line_3 {{ 15 * CHARACTER_WIDTH, 7 * LINE_HEIGHT, 5 * CHARACTER_WIDTH, 1 * LINE_HEIGHT }, ""};
+	Text text_info_line_4 {{ 15 * CHARACTER_WIDTH, 8 * LINE_HEIGHT, 5 * CHARACTER_WIDTH, 1 * LINE_HEIGHT }, ""};
+	Text text_info_line_5 {{ 15 * CHARACTER_WIDTH, 9 * LINE_HEIGHT, 5 * CHARACTER_WIDTH, 1 * LINE_HEIGHT }, ""};
+	Text text_info_line_6 {{ 15 * CHARACTER_WIDTH,10 * LINE_HEIGHT, 5 * CHARACTER_WIDTH, 1 * LINE_HEIGHT }, ""};
+	Text text_info_line_7 {{ 15 * CHARACTER_WIDTH,11 * LINE_HEIGHT, 5 * CHARACTER_WIDTH, 1 * LINE_HEIGHT }, ""};
+	Text text_info_line_8 {{ 15 * CHARACTER_WIDTH,12 * LINE_HEIGHT, 5 * CHARACTER_WIDTH, 1 * LINE_HEIGHT }, ""};
+};
+
+} /* namespace ui */
+
+#endif/*__UI_DFU_MENU_H__*/

firmware/application/apps/ui_fileman.cpp

@@ -20,72 +20,173 @@
  * Boston, MA 02110-1301, USA.
  */
 
+/* TODO:
+ * - Paging menu items
+ * - Copy/Move
+ */
+
+#include <algorithm>
 #include "ui_fileman.hpp"
 #include "string_format.hpp"
 #include "portapack.hpp"
 #include "event_m0.hpp"
 
 using namespace portapack;
+namespace fs = std::filesystem;
+
+namespace {
+using namespace ui;
+
+bool is_hidden_file(const fs::path& path) {
+	return !path.empty() && path.native()[0] == u'.';
+}
+
+// Gets a truncated name from a path for display.
+std::string truncate(const fs::path& path, size_t max_length) {
+	auto name = path.string();
+	return name.length() <= max_length ? name : name.substr(0, max_length);
+}
+
+// Gets a human readable file size string.
+std::string get_pretty_size(uint32_t file_size) {
+	static const std::string suffix[5] = { "B", "kB", "MB", "GB", "??" };
+	size_t suffix_index = 0;
+	
+	while (file_size >= 1024) {
+		file_size /= 1024;
+		suffix_index++;
+	}
+
+	if (suffix_index > 4)
+		suffix_index = 4;
+	
+	return to_string_dec_uint(file_size) + suffix[suffix_index];
+}
+
+// Case insensitive path equality on underlying "native" string.
+bool iequal(
+	const fs::path& lhs,
+	const fs::path& rhs
+) {
+	const auto& lhs_str = lhs.native();
+	const auto& rhs_str = rhs.native();
+
+	// NB: Not correct for Unicode/locales.
+	if (lhs_str.length() == rhs_str.length()) {
+		for (size_t i = 0; i < lhs_str.length(); ++i)
+			if (towupper(lhs_str[i]) != towupper(rhs_str[i]))
+				return false;
+
+		return true;
+	}
+
+	return false;
+}
+
+// Inserts the entry into the entry list sorted directories first then by file name.
+void insert_sorted(std::vector<fileman_entry>& entries, fileman_entry&& entry) {
+	auto it = std::lower_bound(std::begin(entries), std::end(entries), entry,
+		[](const fileman_entry& lhs, const fileman_entry& rhs) {
+			if (lhs.is_directory && !rhs.is_directory)
+				return true;
+			else if (!lhs.is_directory && rhs.is_directory)
+				return false;
+			else
+				return lhs.path < rhs.path;
+		});
+
+	entries.insert(it, std::move(entry));
+}
+
+// Returns the partner file path or an empty path if no partner is found.
+fs::path get_partner_file(fs::path path) {
+	if (fs::is_directory(path))
+		return { };
+
+	const fs::path txt_path{ u".TXT" };
+	const fs::path c16_path{ u".C16" };
+	auto ext = path.extension();
+
+	if (iequal(ext, txt_path))
+		ext = c16_path;
+	else if (iequal(ext, c16_path))
+		ext = txt_path;
+	else
+		return { };
+
+	path.replace_extension(ext);
+	return fs::file_exists(path) && !fs::is_directory(path) ? path : fs::path{ };
+}
+
+// Modal prompt to update the partner file if it exists.
+// Runs continuation on_partner_action to update the partner file.
+// Returns true is a partner is found, otherwise false.
+// Path must be the full path to the file.
+bool partner_file_prompt(
+	NavigationView& nav,
+	const fs::path& path,
+	std::string action_name,
+	std::function<void(const fs::path&, bool)> on_partner_action
+) {
+	auto partner = get_partner_file(path);
+
+	if (partner.empty())
+		return false;
+
+	nav.push_under_current<ModalMessageView>(
+		"Partner File",
+		partner.filename().string() + "\n" + action_name + " this file too?",
+		YESNO,
+		[&nav, partner, on_partner_action](bool choice) {
+			if (on_partner_action)
+				on_partner_action(partner, choice);
+		}
+	);
+
+	return true;
+}
+
+}
 
 namespace ui {
 
-void FileManBaseView::load_directory_contents(const std::filesystem::path& dir_path) {
+/* FileManBaseView ***********************************************************/
+
+void FileManBaseView::load_directory_contents(const fs::path& dir_path) {
 	current_path = dir_path;
-	
-	text_current.set(dir_path.string().length()? dir_path.string().substr(0, 30 - 6):"(sd root)");
-
 	entry_list.clear();
-	
-	auto filtering = (bool)extension_filter.size();
-	
-	// List directories and files, put directories up top
-	if (dir_path.string().length())
-		entry_list.push_back({ u"..", 0, true });
+	auto filtering = !extension_filter.empty();
 
-	for (const auto& entry : std::filesystem::directory_iterator(dir_path, u"*")) {
+	text_current.set(dir_path.empty() ? "(sd root)" : truncate(dir_path, 24));
+	
+	for (const auto& entry : fs::directory_iterator(dir_path, u"*")) {
+		// Hide files starting with '.' (hidden / tmp).
+		if (is_hidden_file(entry.path()))
+			continue;
 
-		// do not display dir / files starting with '.' (hidden / tmp)
-		if (entry.path().string().length() && entry.path().filename().string()[0] != '.') {
-			if (std::filesystem::is_regular_file(entry.status())) {
-				bool matched = true;
-				if (filtering) {
-					auto entry_extension = entry.path().extension().string();
-				
-					for (auto &c: entry_extension)
-						c = toupper(c);
-					
-					if (entry_extension != extension_filter)
-						matched = false;
-				}
-				
-				if (matched)
-					entry_list.push_back({ entry.path(), (uint32_t)entry.size(), false });
-			} else if (std::filesystem::is_directory(entry.status())) {
-				entry_list.insert(entry_list.begin(), { entry.path(), 0, true });
-			}
+		if (fs::is_regular_file(entry.status())) {
+			if (!filtering || iequal(entry.path().extension(), extension_filter))
+				insert_sorted(entry_list, { entry.path(), (uint32_t)entry.size(), false });
+		} else if (fs::is_directory(entry.status())) {
+			insert_sorted(entry_list, { entry.path(), 0, true });
 		}
 	}
+
+	// Add "parent" directory if not at the root.
+	if (!dir_path.empty())
+		entry_list.insert(entry_list.begin(), { parent_dir_path, 0, true });
 }
 
-std::filesystem::path FileManBaseView::get_selected_path() {
-	auto selected_path_str = current_path.string();
-	auto entry_path = entry_list[menu_view.highlighted_index()].entry_path.string();
-	
-	if (entry_path == "..") {
-		selected_path_str = get_parent_dir().string();
-	} else {
-		if (selected_path_str.back() != '/')
-			selected_path_str += '/';
-		
-		selected_path_str += entry_path;
-	}
-	
-	return selected_path_str;
+fs::path FileManBaseView::get_selected_full_path() const {
+	if (get_selected_entry().path == parent_dir_path)
+		return current_path.parent_path();
+
+	return current_path / get_selected_entry().path;
 }
 
-std::filesystem::path FileManBaseView::get_parent_dir() {
-	auto current_path_str = current_path.string();
-	return current_path.string().substr(0, current_path_str.find_last_of('/'));
+const fileman_entry& FileManBaseView::get_selected_entry() const {
+	// TODO: return reference to an "empty" entry on OOB?
+	return entry_list[menu_view.highlighted_index()];
 }
 
 FileManBaseView::FileManBaseView(
@@ -105,20 +206,20 @@ FileManBaseView::FileManBaseView(
 	};
 
 	if (!sdcIsCardInserted(&SDCD1)) {
-		empty_root=true;
+		empty_root = true;
 		text_current.set("NO SD CARD!");
+		return;
+	}
+	
+	load_directory_contents(current_path);
+
+	if (!entry_list.size()) {
+		empty_root = true;
+		text_current.set("EMPTY SD CARD!");
 	} else {
-		load_directory_contents(current_path);
-		if (!entry_list.size())
-		{
-			empty_root = true;
-			text_current.set("EMPTY SD CARD!");
-		} else {
-			menu_view.on_left = [&nav, this]() {
-				load_directory_contents(get_parent_dir());
-				refresh_list();
-			};
-		}
+		menu_view.on_left = [this]() {
+			pop_dir();
+		};
 	}
 }
 
@@ -130,67 +231,83 @@ void FileManBaseView::focus() {
 	}
 }
 
+void FileManBaseView::push_dir(const fs::path& path) {
+	if (path == parent_dir_path) {
+		pop_dir();
+	} else {
+		current_path /= path;
+		saved_index_stack.push_back(menu_view.highlighted_index());
+		menu_view.set_highlighted(0);
+		reload_current();
+	}
+}
+
+void FileManBaseView::pop_dir() {
+	if (saved_index_stack.empty())
+		return;
+
+	current_path = current_path.parent_path();
+	reload_current();
+	menu_view.set_highlighted(saved_index_stack.back());
+	saved_index_stack.pop_back();
+}
+
 void FileManBaseView::refresh_list() {
 	if (on_refresh_widgets)
 		on_refresh_widgets(false);
 
+	auto prev_highlight = menu_view.highlighted_index();
 	menu_view.clear();
 	
-	for (size_t n = 0; n < entry_list.size(); n++) {
-		auto entry = &entry_list[n];
-		auto entry_name = entry->entry_path.filename().string().substr(0, 20);
-		
-		if (entry->is_directory) {
-			
+	for (const auto& entry : entry_list) {
+		auto entry_name = truncate(entry.path, 20);
+	
+		if (entry.is_directory) {
 			menu_view.add_item({
 				entry_name,
 				ui::Color::yellow(),
 				&bitmap_icon_dir,
-				[this](){
+				[this](KeyEvent key) {
 					if (on_select_entry)
-						on_select_entry();
+						on_select_entry(key);
 				}
 			});
-			
+	
 		} else {
-			
-			auto file_size = entry->size;
-			size_t suffix_index = 0;
-			
-			while (file_size >= 1024) {
-				file_size /= 1024;
-				suffix_index++;
-			}
-			if (suffix_index > 4)
-				suffix_index = 4;
-			
-			std::string size_str = to_string_dec_uint(file_size) + suffix[suffix_index];
-			
-			auto entry_extension = entry->entry_path.extension().string();
-			for (auto &c: entry_extension)
-				c = toupper(c);
-			
-			// Associate extension to icon and color
-			size_t c;
-			for (c = 0; c < file_types.size() - 1; c++) {
-				if (entry_extension == file_types[c].extension)
-					break;
-			}
+			const auto& assoc = get_assoc(entry.path.extension());
+			auto size_str = get_pretty_size(entry.size);
 			
 			menu_view.add_item({
 				entry_name + std::string(21 - entry_name.length(), ' ') + size_str,
-				file_types[c].color,
-				file_types[c].icon,
-				[this](){
+				assoc.color,
+				assoc.icon,
+				[this](KeyEvent key) {
 					if (on_select_entry)
-						on_select_entry();
+						on_select_entry(key);
 				}
 			});
-			
 		}
 	}
 	
-	menu_view.set_highlighted(0);	// Refresh
+	menu_view.set_highlighted(prev_highlight);
+}
+
+void FileManBaseView::reload_current() {
+	load_directory_contents(current_path);
+	refresh_list();
+}
+
+const FileManBaseView::file_assoc_t& FileManBaseView::get_assoc(
+	const fs::path& ext) const
+{
+	size_t index = 0;
+
+	for (; index < file_types.size() - 1; ++index)
+		if (iequal(ext, file_types[index].extension))
+			return file_types[index];
+
+	// Default to last entry in the list.
+	return file_types[index];
 }
 
 /*void FileSaveView::on_save_name() {
@@ -215,8 +332,9 @@ FileSaveView::FileSaveView(
 	};
 }*/
 
-void FileLoadView::refresh_widgets(const bool v) {
-	(void)v; //avoid unused warning
+/* FileLoadView **************************************************************/
+
+void FileLoadView::refresh_widgets(const bool) {
 	set_dirty();
 }
 
@@ -238,45 +356,92 @@ FileLoadView::FileLoadView(
 	
 	refresh_list();
 	
-	on_select_entry = [&nav, this]() {
-		if (entry_list[menu_view.highlighted_index()].is_directory) {
-			load_directory_contents(get_selected_path());
-			refresh_list();
+	on_select_entry = [this](KeyEvent) {
+		if (get_selected_entry().is_directory) {
+			push_dir(get_selected_entry().path);
 		} else {
 			nav_.pop();
 			if (on_changed)
-				on_changed(current_path.string() + '/' + entry_list[menu_view.highlighted_index()].entry_path.string());
+				on_changed(get_selected_full_path());
 		}
 	};
 }
 
-void FileManagerView::on_rename(NavigationView& nav) {
-	text_prompt(nav, name_buffer, max_filename_length, [this](std::string& buffer) {
-		std::string destination_path = current_path.string();
-		if (destination_path.back() != '/')
-			destination_path += '/';
-		destination_path = destination_path + buffer;
-		rename_file(get_selected_path(), destination_path);
-		load_directory_contents(current_path);
-		refresh_list();
-	});
+/* FileManagerView ***********************************************************/
+
+void FileManagerView::on_rename() {
+	auto& entry = get_selected_entry();
+	name_buffer = entry.path.filename().string();
+	uint32_t cursor_pos = (uint32_t)name_buffer.length();
+
+	if (auto pos = name_buffer.find_last_of(".");
+		pos != name_buffer.npos && !entry.is_directory)
+		cursor_pos = pos;
+
+	text_prompt(nav_, name_buffer, cursor_pos, max_filename_length,
+		[this](std::string& renamed) {
+			auto renamed_path = fs::path{ renamed };
+			rename_file(get_selected_full_path(), current_path / renamed_path);
+
+			auto has_partner = partner_file_prompt(nav_, get_selected_full_path(), "Rename",
+				[this, renamed_path](const fs::path& partner, bool should_rename) mutable {
+					if (should_rename) {
+						auto new_name = renamed_path.replace_extension(partner.extension());
+						rename_file(current_path / partner, current_path / new_name);
+					}
+					reload_current();
+				}
+			);
+
+			if (!has_partner)
+				reload_current();
+		});
 }
 
 void FileManagerView::on_delete() {
-	delete_file(get_selected_path());
-	load_directory_contents(current_path);
-	refresh_list();
+	auto name = get_selected_entry().path.filename().string();
+	nav_.push<ModalMessageView>("Delete", "Delete " + name + "\nAre you sure?", YESNO,
+		[this](bool choice) {
+			if (choice) {
+				delete_file(get_selected_full_path());
+
+				auto has_partner = partner_file_prompt(
+					nav_, get_selected_full_path(), "Delete",
+					[this](const fs::path& partner, bool should_delete) {
+						if (should_delete)
+							delete_file(current_path / partner);
+						reload_current();
+					}
+				);
+
+				if (!has_partner)
+					reload_current();
+			}
+		}
+	);
+}
+
+void FileManagerView::on_new_dir() {
+	name_buffer = "";
+	text_prompt(nav_, name_buffer, max_filename_length, [this](std::string& dir_name) {
+		make_new_directory(current_path / dir_name);
+		reload_current();
+	});
+}
+
+bool FileManagerView::selected_is_valid() const {
+	return !entry_list.empty() &&
+		get_selected_entry().path != parent_dir_path;
 }
 
 void FileManagerView::refresh_widgets(const bool v) {
 	button_rename.hidden(v);
-	button_new_dir.hidden(v);
 	button_delete.hidden(v);
+	button_new_dir.hidden(v);
 	set_dirty();
 }
 
 FileManagerView::~FileManagerView() {
-	// Flush ?
 }
 
 FileManagerView::FileManagerView(
@@ -293,47 +458,40 @@ FileManagerView::FileManagerView(
 			&labels,
 			&text_date,
 			&button_rename,
+			&button_delete,
 			&button_new_dir,
-			&button_delete
 		});
 		
 		menu_view.on_highlight = [this]() {
-			text_date.set(to_string_FAT_timestamp(file_created_date(get_selected_path())));
+      // TODO: enable/disable buttons.
+      if (selected_is_valid())
+  			text_date.set(to_string_FAT_timestamp(file_created_date(get_selected_full_path())));
+      else
+        text_date.set("");
 		};
 		
 		refresh_list();
-		
-		on_select_entry = [this]() {
-			if (entry_list[menu_view.highlighted_index()].is_directory) {
-				load_directory_contents(get_selected_path());
-				refresh_list();
-			} else
+	
+		on_select_entry = [this](KeyEvent key) {
+			if (key == KeyEvent::Select && get_selected_entry().is_directory) {
+				push_dir(get_selected_entry().path);
+			} else {
 				button_rename.focus();
+			}
 		};
 		
-		button_new_dir.on_select = [this, &nav](Button&) {
-			name_buffer.clear();
-			
-			text_prompt(nav, name_buffer, max_filename_length, [this](std::string& buffer) {
-				make_new_directory(current_path.string() + '/' + buffer);
-				load_directory_contents(current_path);
-				refresh_list();
-			});
+		button_rename.on_select = [this](Button&) {
+			if (selected_is_valid())
+				on_rename();
 		};
-		
-		button_rename.on_select = [this, &nav](Button&) {
-			name_buffer = entry_list[menu_view.highlighted_index()].entry_path.filename().string().substr(0, max_filename_length);
-			on_rename(nav);
+
+		button_delete.on_select = [this](Button&) {
+			if (selected_is_valid())
+				on_delete();
 		};
-		
-		button_delete.on_select = [this, &nav](Button&) {
-			// Use display_modal ?
-			nav.push<ModalMessageView>("Delete", "Delete " + entry_list[menu_view.highlighted_index()].entry_path.filename().string() + "\nAre you sure?", YESNO,
-				[this](bool choice) {
-					if (choice)
-						on_delete();
-				}
-			);
+
+		button_new_dir.on_select = [this](Button&) {
+			on_new_dir();
 		};
 	} 
 }

firmware/application/apps/ui_fileman.hpp

@@ -31,7 +31,7 @@
 namespace ui {
 
 struct fileman_entry {
-	std::filesystem::path entry_path { };
+	std::filesystem::path path { };
 	uint32_t size { };
 	bool is_directory { };
 };
@@ -43,50 +43,56 @@ public:
 		std::string filter
 	);
 
-	void focus() override;
-	
-	void load_directory_contents(const std::filesystem::path& dir_path);
-	std::filesystem::path get_selected_path();
-	
+	void focus() override;	
 	std::string title() const override { return "Fileman"; };
 	
 protected:
-	NavigationView& nav_;
-	
-	static constexpr size_t max_filename_length = 30 - 2;
-	
-	const std::string suffix[5] = { "B", "kB", "MB", "GB", "??" };
-	
+	static constexpr size_t max_filename_length = 50;
+
 	struct file_assoc_t {
-		std::string extension;
+		std::filesystem::path extension;
 		const Bitmap* icon;
 		ui::Color color;
 	};
 	
 	const std::vector<file_assoc_t> file_types = {
-		{ ".TXT", &bitmap_icon_file_text, ui::Color::white() },
-		{ ".PNG", &bitmap_icon_file_image, ui::Color::green() },
-		{ ".BMP", &bitmap_icon_file_image, ui::Color::green() },
-		{ ".C8",  &bitmap_icon_file_iq, ui::Color::blue() },
-		{ ".C16", &bitmap_icon_file_iq, ui::Color::blue() },
-		{ ".WAV", &bitmap_icon_file_wav, ui::Color::dark_magenta() },
-		{ "", &bitmap_icon_file, ui::Color::light_grey() }
+		{ u".TXT", &bitmap_icon_file_text, ui::Color::white() },
+		{ u".PNG", &bitmap_icon_file_image, ui::Color::green() },
+		{ u".BMP", &bitmap_icon_file_image, ui::Color::green() },
+		{ u".C8",  &bitmap_icon_file_iq, ui::Color::dark_cyan() },
+		{ u".C16", &bitmap_icon_file_iq, ui::Color::dark_cyan() },
+		{ u".WAV", &bitmap_icon_file_wav, ui::Color::dark_magenta() },
+		{ u"", &bitmap_icon_file, ui::Color::light_grey() } // NB: Must be last.
 	};
-	
-	bool empty_root { false };
-	std::function<void(void)> on_select_entry { nullptr };
-	std::function<void(bool)> on_refresh_widgets { nullptr };
-	std::vector<fileman_entry> entry_list { };
-	std::filesystem::path current_path { u"" };
-	std::string extension_filter { "" };
-	
-	void change_category(int32_t category_id);
-	std::filesystem::path get_parent_dir();
+
+
+	std::filesystem::path get_selected_full_path() const;
+	const fileman_entry& get_selected_entry() const;
+
+	void push_dir(const std::filesystem::path& path);
+	void pop_dir();
 	void refresh_list();
+	void reload_current();
+	void load_directory_contents(const std::filesystem::path& dir_path);
+	const file_assoc_t& get_assoc(const std::filesystem::path& ext) const;
+
+	NavigationView& nav_;
+
+	bool empty_root { false };
+	std::function<void(KeyEvent)> on_select_entry { nullptr };
+	std::function<void(bool)> on_refresh_widgets { nullptr };
+
+	const std::filesystem::path parent_dir_path { u".." };
+	std::filesystem::path current_path { u"" };
+	std::filesystem::path extension_filter { u"" };
+
+	std::vector<fileman_entry> entry_list { };
+	std::vector<uint32_t> saved_index_stack { };
 	
 	Labels labels {
 		{ { 0, 0 }, "Path:", Color::light_grey() }
 	};
+
 	Text text_current {
 		{ 6 * 8, 0 * 8, 24 * 8, 16 },
 		"",
@@ -142,11 +148,16 @@ public:
 	~FileManagerView();
 
 private:
+	// Passed by ref to other views needing lifetime extension.
 	std::string name_buffer { };
 	
 	void refresh_widgets(const bool v);
-	void on_rename(NavigationView& nav);
+	void on_rename();
 	void on_delete();
+	void on_new_dir();
+
+	// True if the selected entry is a real file item.
+	bool selected_is_valid() const;
 	
 	Labels labels {
 		{ { 0, 26 * 8 }, "Created ", Color::light_grey() }
@@ -161,16 +172,16 @@ private:
 		{ 0 * 8, 29 * 8, 14 * 8, 32 },
 		"Rename"
 	};
+
 	Button button_delete {
 		{ 16 * 8, 29 * 8, 14 * 8, 32 },
 		"Delete"
 	};
-	
+
 	Button button_new_dir {
 		{ 0 * 8, 34 * 8, 14 * 8, 32 },
-		"New dir"
+		"New Dir"
 	};
-	
 };
 
 } /* namespace ui */

firmware/application/apps/ui_flash_utility.cpp

@@ -0,0 +1,89 @@
+/*
+ * Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
+ * Copyright (C) 2023 Bernd Herzog
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "ui_flash_utility.hpp"
+#include "portapack_shared_memory.hpp"
+
+namespace ui {
+
+Thread* FlashUtilityView::thread { nullptr };
+static constexpr size_t max_filename_length = 26;
+
+FlashUtilityView::FlashUtilityView(NavigationView& nav) : nav_ (nav) {
+	add_children({
+		&labels,
+		&menu_view
+	});
+
+	menu_view.set_parent_rect({ 0, 3 * 8, 240, 33 * 8 });
+
+	for (const auto& entry : std::filesystem::directory_iterator(u"FIRMWARE", u"*.bin")) {
+		auto filename = entry.path().filename();
+		auto path = entry.path().native();
+
+		menu_view.add_item({
+			filename.string().substr(0, max_filename_length),
+			ui::Color::red(),
+			&bitmap_icon_temperature,
+			[this, path](KeyEvent) {
+				this->firmware_selected(path);
+			}
+		});
+	}
+}
+
+void FlashUtilityView::firmware_selected(std::filesystem::path::string_type path) {
+	nav_.push<ModalMessageView>(
+		"Warning!",
+		"This will replace your\ncurrent firmware.\n\nIf things go wrong you are\nrequired to flash manually\nwith dfu.",
+		YESNO,
+		[this, path](bool choice) {
+			if (choice) {
+				std::u16string full_path = std::u16string(u"FIRMWARE/") + path;
+				this->flash_firmware(full_path);
+			}
+		}
+	);
+}
+
+void FlashUtilityView::flash_firmware(std::filesystem::path::string_type path) {
+	ui::Painter painter;
+		painter.fill_rectangle(
+		{ 0, 0, portapack::display.width(), portapack::display.height() },
+		ui::Color::black()
+	);
+
+	painter.draw_string({ 12, 24 }, this->nav_.style(), "This will take 15 seconds.");
+	painter.draw_string({ 12, 64 }, this->nav_.style(), "Please wait while LEDs RX");
+	painter.draw_string({ 12, 84 }, this->nav_.style(), "and TX are flashing.");
+	painter.draw_string({ 12, 124 }, this->nav_.style(), "Then restart the device.");
+
+	std::memcpy(&shared_memory.bb_data.data[0], path.c_str(), (path.length() + 1) * 2);
+	m4_init(portapack::spi_flash::image_tag_flash_utility, portapack::memory::map::m4_code, false);
+	m0_halt();
+}
+
+void FlashUtilityView::focus() {
+	menu_view.focus();
+}
+
+} /* namespace ui */

firmware/application/apps/ui_flash_utility.hpp

@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
+ * Copyright (C) 2023 Bernd Herzog
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __UI_FLSH_UITILTY_H__
+#define __UI_FLSH_UITILTY_H__
+
+#include "ui_widget.hpp"
+#include "ui_navigation.hpp"
+#include "string_format.hpp"
+#include "ff.h"
+#include "baseband_api.hpp"
+#include "core_control.hpp"
+
+#include <cstdint>
+
+namespace ui {
+
+class FlashUtilityView : public View {
+public:
+	FlashUtilityView(NavigationView& nav);
+
+	void focus() override;
+	
+	std::string title() const override { return "Flash Utility"; };	
+
+private:
+	NavigationView& nav_;
+	
+	bool confirmed = false;
+	static Thread* thread;
+
+	Labels labels {
+		{ { 4, 4 }, "Select firmware to flash:", Color::white() }
+	};
+
+	MenuView menu_view {
+		{ 0, 2 * 8, 240, 26 * 8 },
+		true
+	};
+
+	void firmware_selected(std::filesystem::path::string_type path);
+	void flash_firmware(std::filesystem::path::string_type path);
+};
+
+} /* namespace ui */
+
+#endif/*__UI_FLSH_UITILTY_H__*/

firmware/application/apps/ui_freqman.cpp

@@ -120,7 +120,7 @@ void FreqManBaseView::refresh_list() {
 				freqman_item_string(database[n], 30),
 				ui::Color::white(),
 				nullptr,
-				[this](){
+				[this](KeyEvent){
 					if (on_select_frequency)
 						on_select_frequency();
 				}

firmware/application/apps/ui_level.hpp

@@ -48,8 +48,6 @@ namespace ui {
 
 			void focus() override;
 
-			void big_display_freq( int64_t f );
-
 			const Style style_grey {		// level
 				.font = font::fixed_8x16,
 					.background = Color::black(),

firmware/application/apps/ui_looking_glass_app.cpp

@@ -26,10 +26,9 @@ using namespace portapack;
 
 namespace ui
 {
-
     void GlassView::focus()
     {
-        field_marker.focus();
+        button_marker.focus();
     }
 
     GlassView::~GlassView()
@@ -39,6 +38,24 @@ namespace ui
         baseband::shutdown();
     }
 
+    // Returns the next multiple of num that is a multiple of multiplier
+    int64_t GlassView::next_mult_of(int64_t num, int64_t multiplier) {
+        return ((num / multiplier) + 1) * multiplier;
+    }
+
+    void GlassView::adjust_range(int64_t* f_min, int64_t* f_max, int64_t width) {
+        int64_t span = *f_max - *f_min;
+        int64_t num_intervals = span / width;
+        if( span % width != 0 )
+        {
+            num_intervals++;
+        }
+        int64_t new_span = num_intervals * width;
+        int64_t delta_span = (new_span - span) / 2;
+        *f_min -= delta_span;
+        *f_max += delta_span;
+    }
+
     void GlassView::on_lna_changed(int32_t v_db)
     {
         receiver_model.set_lna(v_db);
@@ -49,12 +66,71 @@ namespace ui
         receiver_model.set_vga(v_db);
     }
 
-    void GlassView::add_spectrum_pixel(Color color)
+    void GlassView::reset_live_view( bool clear_screen )
     {
-        spectrum_row[pixel_index++] = color;
+        max_freq_hold = 0 ;
+        max_freq_power = -1000 ;
+        if( clear_screen )
+        {
+            // only clear screen in peak mode
+            if( live_frequency_view == 2 )
+            {
+                display.fill_rectangle( { { 0 , 108 + 16 } , { 240 , 320 - (108 + 16) } } , { 0 , 0 , 0 } );
+            }
+        }
+    }
+
+    void GlassView::add_spectrum_pixel( uint8_t power )
+    {
+        static int64_t last_max_freq = 0 ;
+
+        spectrum_row[pixel_index] = spectrum_rgb3_lut[power] ; // row of colors
+        spectrum_data[pixel_index] = ( live_frequency_integrate * spectrum_data[pixel_index] + power ) / (live_frequency_integrate + 1); // smoothing 
+        pixel_index ++ ;
+
         if (pixel_index == 240) // got an entire waterfall line
         {
-            display.draw_pixels({{0, display.scroll(1)}, {240, 1}}, spectrum_row); // new line at top, one less var, speedier
+            if( live_frequency_view > 0 )
+            {
+                constexpr int rssi_sample_range = 256;
+                constexpr float rssi_voltage_min = 0.4;
+                constexpr float rssi_voltage_max = 2.2;
+                constexpr float adc_voltage_max = 3.3;
+                constexpr int raw_min = rssi_sample_range * rssi_voltage_min / adc_voltage_max;
+                constexpr int raw_max = rssi_sample_range * rssi_voltage_max / adc_voltage_max;
+                constexpr int raw_delta = raw_max - raw_min;
+                const range_t<int> y_max_range { 0 , 320 - ( 108 + 16 ) };
+
+                //drawing and keeping track of max freq
+                for( uint16_t xpos = 0 ; xpos < 240 ; xpos ++ )
+                {
+                    // save max powerwull freq 
+                    if( spectrum_data[ xpos ] > max_freq_power )
+                    {
+                        max_freq_power = spectrum_data[ xpos ];
+                        max_freq_hold = f_min + ( (f_max - f_min) * xpos) / 240 ;
+                    }
+
+                    int16_t point = y_max_range.clip( ( ( spectrum_data[ xpos ] - raw_min ) * ( 320 - ( 108 + 16 ) ) ) / raw_delta );
+                    uint8_t color_gradient = (point * 255) / 212 ;
+                    // clear if not in peak view
+                    if( live_frequency_view != 2 )
+                    {
+                        display.fill_rectangle( { { xpos , 108 + 16 } , { 1 , 320 - point } } , { 0 , 0 , 0 } );
+                    }
+                    display.fill_rectangle( { { xpos , 320 - point } , { 1 , point } } , { color_gradient , 0 , uint8_t( 255 - color_gradient ) } );
+                } 
+                if( last_max_freq != max_freq_hold )
+                {
+                    last_max_freq = max_freq_hold ;
+                    freq_stats.set( "MAX HOLD: "+to_string_short_freq( max_freq_hold ) );
+                }
+                PlotMarker( marker );
+            }
+            else
+            {
+                display.draw_pixels({{0, display.scroll(1)}, {240, 1}}, spectrum_row); // new line at top, one less var, speedier
+            }
             pixel_index = 0;                                                       // Start New cascade line
         }
     }
@@ -63,53 +139,123 @@ namespace ui
     // Each having the radio signal power for it's corresponding frequency slot
     void GlassView::on_channel_spectrum(const ChannelSpectrum &spectrum)
     {
+        // default fast scan offset 
+        uint8_t offset = 2 ;
         baseband::spectrum_streaming_stop();
-
-        // Convert bins of this spectrum slice into a representative max_power and when enough, into pixels
-        // Spectrum.db has 256 bins. Center 12 bins are ignored (DC spike is blanked) Leftmost and rightmost 2 bins are ignored
-        // All things said and done, we actually need 240 of those bins:
-        for (uint8_t bin = 0; bin < 240; bin++)
+        if( fast_scan || ( LOOKING_GLASS_SLICE_WIDTH < LOOKING_GLASS_SLICE_WIDTH_MAX ) )
         {
-            if (bin < 120)
+            // Convert bins of this spectrum slice into a representative max_power and when enough, into pixels
+            // Spectrum.db has 256 bins.
+            // All things said and done, we actually need 240 of those bins
+            for (uint8_t bin = 0; bin < 240; bin++)
             {
-                if (spectrum.db[134 + bin] > max_power) // 134
-                    max_power = spectrum.db[134 + bin];
-            }
-            else
-            {
-                if (spectrum.db[bin - 118] > max_power) // 118
-                    max_power = spectrum.db[bin - 118];
-            }
-
-            bins_Hz_size += each_bin_size; // add this bin Hz count into the "pixel fulfilled bag of Hz"
-
-            if (bins_Hz_size >= marker_pixel_step) // new pixel fullfilled
-            {
-                if (min_color_power < max_power)
-                    add_spectrum_pixel(spectrum_rgb3_lut[max_power]); // Pixel will represent max_power
-                else
-                    add_spectrum_pixel(0); // Filtered out, show black
-
-                max_power = 0;
-
-                if (!pixel_index) // Received indication that a waterfall line has been completed
+                // if the view is done in one pass, show it like in analog_audio_app
+                if( ( LOOKING_GLASS_SLICE_WIDTH < LOOKING_GLASS_SLICE_WIDTH_MAX ) )
                 {
-                    bins_Hz_size = 0;                      // Since this is an entire pixel line, we don't carry "Pixels into next bin"
-                    f_center = f_center_ini;               // Start a new sweep
-                    radio::set_tuning_frequency(f_center); // tune rx for this new slice directly, faster than using persistent memory saving
-                    chThdSleepMilliseconds(10);
-                    baseband::spectrum_streaming_start(); // Do the RX
-                    return;
+                    // Center 16 bins are ignored (DC spike is blanked)
+                    if (bin < 120)
+                    {
+                        if (spectrum.db[256 - 120 + bin] > max_power) // 134
+                            max_power = spectrum.db[256 - 120 + bin];
+                    }
+                    else
+                    {
+                        if (spectrum.db[ bin - 120] > max_power) // 118
+                            max_power = spectrum.db[bin - 120];
+                    }
+                }
+                else // view is made in multiple pass, use original bin picking
+                {
+                    // Center 12 bins are ignored (DC spike is blanked) Leftmost and rightmost 2 bins are ignored
+                    if (bin < 120)
+                    {
+                        if (spectrum.db[134 + bin] > max_power) // 134
+                            max_power = spectrum.db[134 + bin];
+                    }
+                    else
+                    {
+                        if (spectrum.db[bin - 118] > max_power) // 118
+                            max_power = spectrum.db[bin - 118];
+                    }
+                }
+                
+                if( bin == 120 )
+                {
+                    bins_Hz_size += 12 * each_bin_size; // add DC bin Hz count into the "pixel fulfilled bag of Hz"
+                }
+                else
+                {
+                    bins_Hz_size += each_bin_size; // add this bin Hz count into the "pixel fulfilled bag of Hz"
                 }
-                bins_Hz_size -= marker_pixel_step; // reset bins size, but carrying the eventual excess Hz into next pixel
-            }
-        }
 
-        f_center += LOOKING_GLASS_SLICE_WIDTH; // Move into the next bandwidth slice NOTE: spectrum.sampling_rate = LOOKING_GLASS_SLICE_WIDTH
+                if (bins_Hz_size >= marker_pixel_step) // new pixel fullfilled
+                {
+                    if (min_color_power < max_power)
+                        add_spectrum_pixel(max_power); // Pixel will represent max_power
+                    else
+                        add_spectrum_pixel(0); // Filtered out, show black
+
+                    max_power = 0;
+
+                    if (!pixel_index) // Received indication that a waterfall line has been completed
+                    {
+                        bins_Hz_size = 0;                               // Since this is an entire pixel line, we don't carry "Pixels into next bin"
+                        f_center = f_center_ini - offset * each_bin_size ;   // Start a new sweep
+                        radio::set_tuning_frequency(f_center); // tune rx for this new slice directly, faster than using persistent memory saving
+                        chThdSleepMilliseconds(10);
+                        baseband::spectrum_streaming_start(); // Do the RX
+                        return;
+                    }
+                    bins_Hz_size -= marker_pixel_step; // reset bins size, but carrying the eventual excess Hz into next pixel
+                }
+            }
+            f_center += ( 256 - ( 2 * offset ) ) * each_bin_size ; // Move into the next bandwidth slice NOTE: spectrum.sampling_rate = LOOKING_GLASS_SLICE_WIDTH
+                                                                   // lost bins are taken in account so next slice first ignored bins overlap previous kept ones
+        }
+        else //slow scan
+        { 
+            offset = 32 ;
+            uint8_t bin_length = 80 ;
+            for (uint8_t bin = offset ; bin < bin_length + offset ; bin++)
+            {
+                if (bin < 120)
+                {
+                    if (spectrum.db[134 + bin] > max_power) // 134
+                        max_power = spectrum.db[134 + bin];
+                }
+                else
+                {
+                    if (spectrum.db[bin - 118] > max_power) // 118
+                        max_power = spectrum.db[bin - 118];
+                }
+
+                bins_Hz_size += each_bin_size; // add this bin Hz count into the "pixel fulfilled bag of Hz"
+
+                if (bins_Hz_size >= marker_pixel_step) // new pixel fullfilled
+                {
+                    if (min_color_power < max_power)
+                        add_spectrum_pixel(max_power); // Pixel will represent max_power
+                    else
+                        add_spectrum_pixel(0); // Filtered out, show black
+
+                    max_power = 0;
+
+                    if (!pixel_index) // Received indication that a waterfall line has been completed
+                    {
+                        bins_Hz_size = 0;                              // Since this is an entire pixel line, we don't carry "Pixels into next bin"
+                        f_center = f_center_ini - offset * each_bin_size ;  // Start a new sweep
+                        radio::set_tuning_frequency(f_center); // tune rx for this new slice directly, faster than using persistent memory saving
+                        chThdSleepMilliseconds(10);
+                        baseband::spectrum_streaming_start(); // Do the RX
+                        return;
+                    }
+                    bins_Hz_size -= marker_pixel_step; // reset bins size, but carrying the eventual excess Hz into next pixel
+                }
+            }
+            f_center +=  bin_length * each_bin_size ;
+        }
         radio::set_tuning_frequency(f_center); // tune rx for this new slice directly, faster than using persistent memory saving
         chThdSleepMilliseconds(5);
-
-        // receiver_model.set_tuning_frequency(f_center); //tune rx for this slice
         baseband::spectrum_streaming_start(); // Do the RX
     }
 
@@ -127,50 +273,71 @@ namespace ui
 
     void GlassView::on_range_changed()
     {
+        reset_live_view( false );
         f_min = field_frequency_min.value();
         f_max = field_frequency_max.value();
         search_span = f_max - f_min;
-
-        field_marker.set_range(f_min, f_max);              // Move the marker between range
-        field_marker.set_value(f_min + (search_span / 2)); // Put MARKER AT MIDDLE RANGE
-        text_range.set(to_string_dec_uint(search_span));
+                                                           
+        if( locked_range )
+        {
+            button_range.set_text(">"+to_string_dec_uint(search_span)+"<");
+        }
+        else
+        {
+            button_range.set_text(" "+to_string_dec_uint(search_span)+" ");
+        }
 
         f_min = (f_min)*MHZ_DIV; // Transpose into full frequency realm
         f_max = (f_max)*MHZ_DIV;
-        search_span = search_span * MHZ_DIV;
+        adjust_range( &f_min , &f_max , 240 );
 
-        marker_pixel_step = search_span / 240;                                        // Each pixel value in Hz
-        text_marker_pm.set(to_string_dec_uint((marker_pixel_step / X2_MHZ_DIV) + 1)); // Give idea of +/- marker precision
+        marker_pixel_step = (f_max - f_min) / 240;                                        // Each pixel value in Hz
+        marker = f_min + (f_max - f_min) / 2 ;
+        button_marker.set_text( to_string_short_freq( marker ) );
+        PlotMarker( marker ); // Refresh marker on screen
 
-        int32_t marker_step = marker_pixel_step / MHZ_DIV;
-        if (!marker_step)
-            field_marker.set_step(1); // in case selected range is less than 240 (pixels)
-        else
-            field_marker.set_step(marker_step); // step needs to be a pixel wide.
-
-        f_center_ini = f_min + (LOOKING_GLASS_SLICE_WIDTH / 2); // Initial center frequency for sweep
-
-        PlotMarker(field_marker.value()); // Refresh marker on screen
-
-        f_center = f_center_ini; // Reset sweep into first slice
         pixel_index = 0;         // reset pixel counter
         max_power = 0;
         bins_Hz_size = 0; // reset amount of Hz filled up by pixels
+        if( (f_max - f_min) <= LOOKING_GLASS_SLICE_WIDTH_MAX )
+        {
+            LOOKING_GLASS_SLICE_WIDTH = (f_max - f_min) ;
+            receiver_model.set_sampling_rate(LOOKING_GLASS_SLICE_WIDTH);      
+            receiver_model.set_baseband_bandwidth(LOOKING_GLASS_SLICE_WIDTH/2); 
+        }
+        else if( LOOKING_GLASS_SLICE_WIDTH != LOOKING_GLASS_SLICE_WIDTH_MAX )
+        {
+            LOOKING_GLASS_SLICE_WIDTH = LOOKING_GLASS_SLICE_WIDTH_MAX ;
+            receiver_model.set_sampling_rate(LOOKING_GLASS_SLICE_WIDTH);      
+            receiver_model.set_baseband_bandwidth(LOOKING_GLASS_SLICE_WIDTH); 
+        }
+        if( next_mult_of( LOOKING_GLASS_SLICE_WIDTH , 256 ) > LOOKING_GLASS_SLICE_WIDTH_MAX )
+            LOOKING_GLASS_SLICE_WIDTH = LOOKING_GLASS_SLICE_WIDTH_MAX ;
+        else
+            LOOKING_GLASS_SLICE_WIDTH = next_mult_of( LOOKING_GLASS_SLICE_WIDTH , 256 );
 
+        receiver_model.set_squelch_level(0);
+        each_bin_size = LOOKING_GLASS_SLICE_WIDTH / 256 ; 
+        f_center_ini = f_min + (LOOKING_GLASS_SLICE_WIDTH / 2) ; // Initial center frequency for sweep
+        f_center = f_center_ini ; // Reset sweep into first slice
         baseband::set_spectrum(LOOKING_GLASS_SLICE_WIDTH, field_trigger.value());
         receiver_model.set_tuning_frequency(f_center_ini); // tune rx for this slice
     }
 
     void GlassView::PlotMarker(rf::Frequency pos)
     {
-        pos = pos * MHZ_DIV;
         pos -= f_min;
         pos = pos / marker_pixel_step; // Real pixel
-
-        portapack::display.fill_rectangle({0, 100, 240, 8}, Color::black());        // Clear old marker and whole marker rectangle btw
-        portapack::display.fill_rectangle({(int)pos - 2, 100, 5, 3}, Color::red()); // Red marker top
-        portapack::display.fill_rectangle({(int)pos - 1, 103, 3, 3}, Color::red()); // Red marker middle
-        portapack::display.fill_rectangle({(int)pos, 106, 1, 2}, Color::red());     // Red marker bottom
+        
+        uint8_t shift_y = 0 ;
+        if( live_frequency_view > 0 ) // plot one line down when in live view
+        {
+            shift_y = 16 ;
+        }
+        portapack::display.fill_rectangle({0, 100 + shift_y, 240, 8}, Color::black());        // Clear old marker and whole marker rectangle btw
+        portapack::display.fill_rectangle({(int)pos - 2, 100 + shift_y, 5, 3}, Color::red()); // Red marker top
+        portapack::display.fill_rectangle({(int)pos - 1, 103 + shift_y, 3, 3}, Color::red()); // Red marker middle
+        portapack::display.fill_rectangle({(int)pos, 106 + shift_y, 1, 2}, Color::red());     // Red marker bottom
     }
 
     GlassView::GlassView(
@@ -183,96 +350,116 @@ namespace ui
                       &field_frequency_max,
                       &field_lna,
                       &field_vga,
-                      &text_range,
+                      &button_range,
                       &steps_config,
+                      &scan_type,
+                      &view_config,
+                      &level_integration,
                       &filter_config,
                       &field_rf_amp,
                       &range_presets,
-                      &field_marker,
-                      &text_marker_pm,
-                      &field_trigger});
+                      &button_marker,
+                      &field_trigger,
+                      &button_jump,
+                      &button_rst,
+                      &freq_stats});
 
         load_Presets(); // Load available presets from TXT files (or default)
 
-        field_frequency_min.set_value(presets_db[0].min); // Defaults to first preset
-        field_frequency_min.set_step( steps );
         field_frequency_min.on_change = [this](int32_t v)
         {
-            int32_t steps_ = steps ;
-            if( steps_ < 24 )
-                steps_ = 24 ;
-            if( v > 7200 - steps_ )
+            reset_live_view( true );
+            int32_t min_size = steps ;
+            if( locked_range )
+                min_size = search_span ;
+            if( min_size < 2 )
+                min_size = 2 ;
+            if( v > 7200 - min_size )
             {
-                v = 7200 - steps_ ;
+                v = 7200 - min_size ;
                 field_frequency_min.set_value( v ); 
             }
-            if (v >= (field_frequency_max.value() - steps_ ) )
-                field_frequency_max.set_value( v + steps_ );
+            if (v > (field_frequency_max.value() - min_size ) )
+                field_frequency_max.set_value( v + min_size );
+            if( locked_range )
+                field_frequency_max.set_value( v + min_size );
             this->on_range_changed();
         };
+        field_frequency_min.set_value(presets_db[0].min); // Defaults to first preset
+        field_frequency_min.set_step( steps );
 
         field_frequency_min.on_select = [this, &nav](NumberField& field) {
             auto new_view = nav_.push<FrequencyKeypadView>(field_frequency_min.value()*1000000);
             new_view->on_changed = [this, &field](rf::Frequency f) {
                 int32_t freq = f / 1000000 ;
-                int32_t steps_ = steps ;
-                if( steps_ < 24 )
-                    steps_ = 24 ;
-                if( freq > (7200 - steps_ ) )
-                    freq= 7200 - steps_  ;
+                int32_t min_size = steps ;
+                if( locked_range )
+                    min_size = search_span ;
+                if( min_size < 2 )
+                    min_size = 2 ;
+                if( freq > (7200 - min_size ) )
+                    freq = 7200 - min_size  ;
                 field_frequency_min.set_value( freq );
-                if( field_frequency_max.value() < ( freq + steps_ ) )
-                    field_frequency_max.set_value( freq + steps_ );
+                if( field_frequency_max.value() < ( freq + min_size ) )
+                    field_frequency_max.set_value( freq + min_size );
                 this->on_range_changed();
             };
         };
 
-        field_frequency_max.set_value(presets_db[0].max); // Defaults to first preset
-        field_frequency_max.set_step( steps );
         field_frequency_max.on_change = [this](int32_t v)
         {          
-            int32_t steps_ = steps ;
-            if( steps_ < 24 )
-                steps_ = 24 ;
-            if( v < steps_ )
+            reset_live_view( true );
+            int32_t min_size = steps ;
+            if( locked_range )
+                min_size = search_span ;
+            if( min_size < 2 )
+                min_size = 2 ;
+            if( v < min_size )
             {
-                v = steps_ ;
+                v = min_size ;
                 field_frequency_max.set_value( v ); 
             }
-            if (v < (field_frequency_min.value() + steps_) )
-                field_frequency_min.set_value(v - steps_);
+            if (v < (field_frequency_min.value() + min_size) )
+                field_frequency_min.set_value(v - min_size);
+            if( locked_range )
+                field_frequency_min.set_value( v - min_size );
             this->on_range_changed();
         };
+        field_frequency_max.set_value(presets_db[0].max); // Defaults to first preset
+        field_frequency_max.set_step( steps );
 
         field_frequency_max.on_select = [this, &nav](NumberField& field) {
             auto new_view = nav_.push<FrequencyKeypadView>(field_frequency_max.value()*1000000);
             new_view->on_changed = [this, &field](rf::Frequency f) {
-                int32_t steps_ = steps ;
-                if( steps_ < 24 )
-                    steps_ = 24 ;
+                int32_t min_size = steps ;
+                if( locked_range )
+                    min_size = search_span ;
+                if( min_size < 2 )
+                    min_size = 2 ;
                 int32_t freq = f / 1000000 ;
-                if( freq < 24 )
-                    freq = 24 ;
+                if( freq < min_size )
+                    freq = min_size ;
                 field_frequency_max.set_value( freq );
-                if( field_frequency_min.value() > ( freq - steps) ) 
-                    field_frequency_min.set_value( freq - steps );
+                if( field_frequency_min.value() > ( freq - min_size) ) 
+                    field_frequency_min.set_value( freq - min_size );
                 this->on_range_changed();
             };
         };
 
-        field_lna.set_value(receiver_model.lna());
         field_lna.on_change = [this](int32_t v)
         {
+            reset_live_view( true );
             this->on_lna_changed(v);
         };
+        field_lna.set_value(receiver_model.lna());
 
-        field_vga.set_value(receiver_model.vga());
         field_vga.on_change = [this](int32_t v_db)
         {
+            reset_live_view( true );
             this->on_vga_changed(v_db);
         };
+        field_vga.set_value(receiver_model.vga());
 
-        steps_config.set_selected_index(3); //default of 250 Mhz steps
         steps_config.on_change = [this](size_t n, OptionsField::value_t v)
         {
             (void)n;
@@ -280,6 +467,67 @@ namespace ui
             field_frequency_max.set_step( v );
             steps = v ;
         };
+        steps_config.set_selected_index(0); //default of 1 Mhz steps
+                                            
+        scan_type.on_change = [this](size_t n, OptionsField::value_t v)
+        {
+            (void)n;
+            fast_scan = v ;
+        };
+        scan_type.set_selected_index(0); // default legacy fast scan
+
+        view_config.on_change = [this](size_t n, OptionsField::value_t v)
+        {
+            (void)n;
+            // clear between changes
+            reset_live_view( true );
+            if( v == 0 )
+            {
+                live_frequency_view = 0 ;
+                level_integration.hidden( true );
+                freq_stats.hidden( true );
+                button_jump.hidden( true );
+                button_rst.hidden( true );
+                display.scroll_set_area(109, 319); // Restart scroll on the correct coordinates
+            }
+            else if( v == 1 )
+            {
+                display.fill_rectangle( { { 0 , 108 } , { 240 , 24 } } , { 0 , 0 , 0 } );
+                live_frequency_view = 1 ;
+                display.scroll_disable();
+                level_integration.hidden( false );
+                freq_stats.hidden( false );
+                button_jump.hidden( false );
+                button_rst.hidden( false );
+            }
+            else if( v == 2 )
+            {
+                display.fill_rectangle( { { 0 , 108 } , { 240 , 24 } } , { 0 , 0 , 0 } );
+                live_frequency_view = 2 ;
+                display.scroll_disable();
+                level_integration.hidden( false );
+                freq_stats.hidden( false );
+                button_jump.hidden( false );
+                button_rst.hidden( false );
+            }
+            set_dirty();
+        };
+        view_config.set_selected_index(0); //default spectrum
+
+        level_integration.on_change = [this](size_t n, OptionsField::value_t v)
+        {
+            (void)n;
+            reset_live_view( true );
+            live_frequency_integrate = v ;
+        };
+        level_integration.set_selected_index(3); //default integration of ( 3 * old value + new_value ) / 4
+
+        filter_config.on_change = [this](size_t n, OptionsField::value_t v) {
+            (void)n;
+            reset_live_view( true );
+            min_color_power = v;
+        };
+        filter_config.set_selected_index(0);
 
         range_presets.on_change = [this](size_t n, OptionsField::value_t v)
         {
@@ -289,26 +537,57 @@ namespace ui
             this->on_range_changed();
         };
 
-        field_marker.on_change = [this](int32_t v)
+        button_marker.on_change = [this]()
         {
-            PlotMarker(v); // Refresh marker on screen
+            marker = marker + button_marker.get_encoder_delta() * marker_pixel_step ;
+            if( marker < f_min )
+                marker = f_min ;
+            if( marker > f_max )
+                marker = f_max ;
+            button_marker.set_text( to_string_short_freq( marker ) );
+			button_marker.set_encoder_delta( 0 );
+            PlotMarker( marker ); // Refresh marker on screen
         };
 
-        field_marker.on_select = [this](NumberField &)
+        button_marker.on_select = [this](ButtonWithEncoder &)
         {
-            f_center = field_marker.value();
-            f_center = f_center * MHZ_DIV;
-            receiver_model.set_tuning_frequency(f_center); // Center tune rx in marker freq.
+            receiver_model.set_tuning_frequency(marker); // Center tune rx in marker freq.
             receiver_model.set_frequency_step(MHZ_DIV);    // Preset a 1 MHz frequency step into RX -> AUDIO
             nav_.pop();
             nav_.push<AnalogAudioView>(); // Jump into audio view
         };
 
-        field_trigger.set_value(32); // Defaults to 32, as normal triggering resolution
         field_trigger.on_change = [this](int32_t v)
         {
             baseband::set_spectrum(LOOKING_GLASS_SLICE_WIDTH, v);
         };
+        field_trigger.set_value(32); // Defaults to 32, as normal triggering resolution
+                                     
+        button_range.on_select = [this](Button&) {
+            if( locked_range )
+            {
+                locked_range = false ;
+                button_range.set_style(&style_white);
+                button_range.set_text(" "+to_string_dec_uint(search_span)+" ");
+            }
+            else
+            {
+                locked_range = true ;
+                button_range.set_style(&style_red);
+                button_range.set_text(">"+to_string_dec_uint(search_span)+"<");
+            }
+        };
+
+        button_jump.on_select = [this](Button&) {
+            receiver_model.set_tuning_frequency(max_freq_hold); // Center tune rx in marker freq.
+            receiver_model.set_frequency_step(MHZ_DIV);    // Preset a 1 MHz frequency step into RX -> AUDIO
+            nav_.pop();
+            nav_.push<AnalogAudioView>(); // Jump into audio view
+        };
+
+        button_rst.on_select = [this](Button&) {
+            reset_live_view( true );
+        };
 
         display.scroll_set_area(109, 319);
         baseband::set_spectrum(LOOKING_GLASS_SLICE_WIDTH, field_trigger.value()); // trigger:

firmware/application/apps/ui_looking_glass_app.hpp

@@ -1,6 +1,7 @@
 /*
  * Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
  * Copyright (C) 2020 euquiq
+ * Copyright (C) 2023 gullradriel, Nilorea Studio Inc.
  *
  * This file is part of PortaPack.
  *
@@ -36,13 +37,14 @@
 
 namespace ui
 {
-#define LOOKING_GLASS_SLICE_WIDTH	20000000 // Each slice bandwidth 20 MHz
+#define LOOKING_GLASS_SLICE_WIDTH_MAX 20000000
 #define MHZ_DIV	            1000000
 #define X2_MHZ_DIV	        2000000
 
     class GlassView : public View
     {
         public:
+			
             GlassView(NavigationView &nav);
 
             GlassView( const GlassView &);
@@ -64,15 +66,37 @@ namespace ui
                 rf::Frequency max{};
                 std::string label{};
             };
+            
+            const Style style_white {		// free range
+                .font = font::fixed_8x16,
+                .background = Color::black(),
+                .foreground = Color::white(),
+            };
+
+            const Style style_red {		// locked range
+                .font = font::fixed_8x16,
+                .background = Color::black(),
+                .foreground = Color::red(),
+            };
 
             std::vector<preset_entry> presets_db{};
+            
+            // Each slice bandwidth 20 MHz and a multiple of 256
+            // since we are using LOOKING_GLASS_SLICE_WIDTH/256 as the each_bin_size
+            // it should also be a multiple of 2 since we are using LOOKING_GLASS_SLICE_WIDTH / 2 as centering freq
+            int64_t LOOKING_GLASS_SLICE_WIDTH = 20000000;
+
+            // frequency rounding helpers
+            int64_t next_mult_of(int64_t num, int64_t multiplier);
+            void adjust_range(int64_t* f_min, int64_t* f_max, int64_t width);
 
             void on_channel_spectrum(const ChannelSpectrum& spectrum);
             void do_timers();
             void on_range_changed();
             void on_lna_changed(int32_t v_db);
             void on_vga_changed(int32_t v_db);
-            void add_spectrum_pixel(Color color);
+            void reset_live_view( bool clear_screen );
+            void add_spectrum_pixel(uint8_t power);
             void PlotMarker(rf::Frequency pos);
             void load_Presets();
             void txtline_process(std::string& line);
@@ -83,22 +107,30 @@ namespace ui
             rf::Frequency search_span { 0 };
             rf::Frequency f_center { 0 };
             rf::Frequency f_center_ini { 0 };
+            rf::Frequency marker { 0 };
             rf::Frequency marker_pixel_step { 0 };
-            rf::Frequency each_bin_size { LOOKING_GLASS_SLICE_WIDTH  / 240 };
+            rf::Frequency each_bin_size { LOOKING_GLASS_SLICE_WIDTH  / 256 };
             rf::Frequency bins_Hz_size { 0 };
             uint8_t min_color_power { 0 };
             uint32_t pixel_index { 0 };
             std::array<Color, 240> spectrum_row = { 0 };
+            std::array<uint8_t, 240> spectrum_data = { 0 };
             ChannelSpectrumFIFO* fifo { nullptr }; 
             uint8_t max_power = 0;
-            int32_t steps = 250 ; // default of 250 Mhz steps
+            int32_t steps = 0 ;
+            uint8_t live_frequency_view = 0 ;
+            int16_t live_frequency_integrate = 3 ;
+            int64_t max_freq_hold = 0 ;
+            int16_t max_freq_power = -1000 ;
+            bool fast_scan = true ; // default to legacy fast scan
+            bool locked_range = false ; 
 
             Labels labels{
                 {{0, 0}, "MIN:     MAX:     LNA   VGA  ", Color::light_grey()},
-                    {{0, 1 * 16}, " RANGE:     FILTER:      AMP:", Color::light_grey()},
+                    {{0, 1 * 16}, "RANGE:       FILTER:      AMP:", Color::light_grey()},
                     {{0, 2 * 16}, "PRESET:", Color::light_grey()},
-                    {{0, 3 * 16}, "MARKER:     MHz +/-    MHz", Color::light_grey()},
-                    {{0, 4 * 16}, "RESOLUTION:     STEPS:", Color::light_grey()}
+                    {{0, 3 * 16}, "MARKER:            MHz", Color::light_grey()},
+                    {{0, 4 * 16}, "RES:    STEP:", Color::light_grey()}
             };
 
             NumberField field_frequency_min {
@@ -125,24 +157,12 @@ namespace ui
                 { 27 * 8, 0 * 16 }
             };
 
-            Text text_range{
+            Button  button_range{
                 {7 * 8, 1 * 16, 4 * 8, 16},
                     ""};
 
-            OptionsField steps_config{
-                { 22 * 8, 4 * 16},
-                    4,
-                    {
-                        {"1",    1},
-                        {"50",   50},
-                        {"100",  100},
-                        {"250",  250}, 
-                        {"500",  500},
-                        {"1000", 1000}, 
-                    }};
-
             OptionsField filter_config{
-                {19 * 8, 1 * 16},
+                {20 * 8, 1 * 16},
                     4,
                     {
                         {"OFF ", 0},
@@ -160,24 +180,80 @@ namespace ui
                         {" NONE (WIFI 2.4GHz)", 0},
                     }};
 
-            NumberField field_marker{
-                {7 * 8, 3 * 16},
-                    4,
-                    {0, 7200},
-                    25,
-                    ' '};
-
-            Text text_marker_pm{
-                {20 * 8, 3 * 16, 2 * 8, 16},
-                    ""};
+            ButtonWithEncoder button_marker{
+                {7 * 8, 3 * 16 , 10 * 8 , 16},
+                " "
+            };
 
             NumberField field_trigger{
-                {11 * 8, 4 * 16},
+                {4 * 8, 4 * 16},
                     3,
                     {2, 128},
                     2,
                     ' '};
 
+            OptionsField steps_config{
+                { 13 * 8, 4 * 16},
+                3,
+                {
+                    {"1",    1},
+                    {"25",   25},
+                    {"50",   50},
+                    {"100",  100},
+                    {"250",  250}, 
+                    {"500",  500},
+                }
+            };
+
+			OptionsField scan_type{
+                { 17 * 8, 4 * 16},
+                2,
+                {
+                    {"F-", true },
+                    {"S-", false },
+                }
+            };
+
+            OptionsField view_config{
+                { 19 * 8, 4 * 16},
+                7,
+                {
+                    {"SPCTR-V", 0 },
+                    {"LEVEL-V", 1 },
+                    {"PEAK-V" , 2 },
+                }
+            };
+
+            OptionsField level_integration{
+                { 27 * 8, 4 * 16},
+                2,
+                {
+                    {"x0", 0 },
+                    {"x1", 1 },
+                    {"x2", 2 },
+                    {"x3", 3 },
+                    {"x4", 4 },
+                    {"x5", 5 },
+                    {"x6", 6 },
+                    {"x7", 7 },
+                    {"x8", 8 },
+                    {"x9", 9 },
+                    }};
+
+            Button button_jump {
+                { 240 - 4 * 8 , 5 * 16 , 4 * 8, 16 },
+                "JMP"
+            };
+
+            Button button_rst {
+                { 240 - 9 * 8 , 5 * 16 , 4 * 8, 16 },
+                "RST"
+            };
+
+            Text freq_stats{
+                {0 * 8, 5 * 16 , 240 - 10 * 8 , 8 },
+                ""
+            };
 
             MessageHandlerRegistration message_handler_spectrum_config {
                 Message::ID::ChannelSpectrumConfig,

firmware/application/apps/ui_mictx.cpp

@@ -180,7 +180,10 @@ void MicTXView::rxaudio(bool is_on) {
 		receiver_model.set_sampling_rate(3072000);
 		receiver_model.set_baseband_bandwidth(1750000);	
 //		receiver_model.set_tuning_frequency(field_frequency.value()); //probably this too can be commented out.
-		receiver_model.set_tuning_frequency(rx_frequency); // Now with seperate controls!
+	    if (bool_same_F_tx_rx_enabled) 								// when stop TX ,define to which freq RX we return 
+			    receiver_model.set_tuning_frequency(tx_frequency);  // Update freq also for RX = TX	
+		else 
+		        receiver_model.set_tuning_frequency(rx_frequency);  // Now with seperate freq controls!
 		receiver_model.set_lna(rx_lna);
 		receiver_model.set_vga(rx_vga);
 		receiver_model.set_rf_amp(rx_amp);
@@ -237,6 +240,7 @@ MicTXView::MicTXView(
 		&field_frequency,
 		&options_tone_key,
 		&check_rogerbeep,
+		&check_common_freq_tx_rx,	// added to handle common or separate freq- TX/RX
 		&check_rxactive,
 		&field_volume,
 		&field_rxbw,
@@ -266,6 +270,7 @@ MicTXView::MicTXView(
 		&field_frequency,
 		&options_tone_key,
 		&check_rogerbeep,
+		&check_common_freq_tx_rx,	// added to handle common or separate freq- TX/RX
 		&check_rxactive,
 		&field_volume,
 		&field_rxbw,
@@ -332,8 +337,12 @@ MicTXView::MicTXView(
 	field_frequency.set_step(receiver_model.frequency_step());
 	field_frequency.on_change = [this](rf::Frequency f) {
 		tx_frequency = f;
-		if(!rx_enabled)
+		if(!rx_enabled) {					// not activated receiver. just update freq TX
 			transmitter_model.set_tuning_frequency(f);
+	    } else {							// activated receiver.
+			if (bool_same_F_tx_rx_enabled)	// user selected common freq- TX = RX
+			    receiver_model.set_tuning_frequency(f); //Update common freq also for RX			
+		}	
 	};
 	field_frequency.on_edit = [this, &nav]() {
 		focused_ui = 0;
@@ -341,8 +350,12 @@ MicTXView::MicTXView(
 		auto new_view = nav.push<FrequencyKeypadView>(tx_frequency);
 		new_view->on_changed = [this](rf::Frequency f) {
 			tx_frequency = f;
-			if(!rx_enabled)
+			if(!rx_enabled) {
 				transmitter_model.set_tuning_frequency(f);
+		    } else {
+				if (bool_same_F_tx_rx_enabled)
+				  receiver_model.set_tuning_frequency(f); //Update freq also for RX
+			}	
 			this->field_frequency.set_value(f);
 			set_dirty();
 		};
@@ -511,6 +524,13 @@ MicTXView::MicTXView(
 		rogerbeep_enabled = v;
 	};
 
+    check_common_freq_tx_rx.on_select = [this](Checkbox&, bool v) {
+		bool_same_F_tx_rx_enabled = v;
+		field_rxfrequency.hidden(v); 	//Hide or show separated freq RX field . (When no hide user can enter down indep. freq for RX)
+		set_dirty();					//Refresh GUI interface
+		receiver_model.set_tuning_frequency(v ? tx_frequency : rx_frequency);	// To go to the proper tuned freq. when toggling it
+	};
+
 	field_va_level.on_change = [this](int32_t v) {
 		va_level = v;
 		vumeter.set_mark(v);
@@ -563,12 +583,12 @@ MicTXView::MicTXView(
 	rx_frequency = receiver_model.tuning_frequency();
 	field_rxfrequency.set_value(rx_frequency);
 	field_rxfrequency.set_step(receiver_model.frequency_step());
-	field_rxfrequency.on_change = [this](rf::Frequency f) {
+	field_rxfrequency.on_change = [this](rf::Frequency f) {		// available when field rxfrequency not hidden => user selected separated freq RX/TX-
 		rx_frequency = f;
 		if(rx_enabled)
 			receiver_model.set_tuning_frequency(f);
 	};
-	field_rxfrequency.on_edit = [this, &nav]() {
+	field_rxfrequency.on_edit = [this, &nav]() {				// available when field rxfrequency not hidden => user selected separated freq RX/TX-
 		focused_ui = 1;
 		// TODO: Provide separate modal method/scheme?
 		auto new_view = nav.push<FrequencyKeypadView>(rx_frequency);

firmware/application/apps/ui_mictx.hpp

@@ -80,6 +80,7 @@ private:
 	bool va_enabled { false };
 	bool ptt_enabled { true };
 	bool rogerbeep_enabled { false };
+    bool bool_same_F_tx_rx_enabled { false };
 	bool rx_enabled { false };
 	uint32_t tone_key_index { };
 	float mic_gain { 1.0 };
@@ -123,9 +124,9 @@ private:
 		{ {20 * 8, 10 * 8 }, "DEC:", Color::light_grey() },
 		{ { 4 * 8, ( 13 * 8 ) - 2 }, "TONE KEY:", Color::light_grey() },
 		{ { 7 * 8, 23 * 8 }, "VOL:", Color::light_grey() },
-		{ {14 * 8, 23 * 8 }, "RXBW:", Color::light_grey() },				//we remove the label "FM" because we will display all MOD types RX_BW.
-		{ {17 * 8, 25 * 8 }, "SQ:", Color::light_grey() },
-		{ { 5 * 8, 25 * 8 }, "F:", Color::light_grey() },
+		{ {14 * 8, 23 * 8 }, "RXBW:", Color::light_grey() },		//we remove the label "FM" because we will display all MOD types RX_BW.
+		{ {20 * 8, 25 * 8 }, "SQ:", Color::light_grey() },
+		{ { 5 * 8, 25 * 8 }, "F_RX:", Color::light_grey() }, 			
 		{ { 5 * 8, 27 * 8 }, "LNA:", Color::light_grey()},
 		{ {12 * 8, 27 * 8 }, "VGA:", Color::light_grey()},
 		{ {19 * 8, 27 * 8 }, "AMP:", Color::light_grey()}
@@ -145,8 +146,8 @@ private:
 		{ { 4 * 8, ( 13 * 8 ) - 2 }, "TONE KEY:", Color::light_grey() },
 		{ { (6 * 8)+4, 23 * 8 }, "VOL:", Color::light_grey() },
 		{ {14 * 8, 23 * 8 }, "RXBW:", Color::light_grey() },			//we remove the label "FM" because we will display all MOD types RX_BW.
-		{ {17 * 8, 25 * 8 }, "SQ:", Color::light_grey() },
-		{ { 5 * 8, 25 * 8 }, "F:", Color::light_grey() },
+		{ {20 * 8, 25 * 8 }, "SQ:", Color::light_grey() },
+		{ { 5 * 8, 25 * 8 }, "F_RX:", Color::light_grey() },
 		{ { 5 * 8, 27 * 8 }, "LNA:", Color::light_grey()},
 		{ {12 * 8, 27 * 8 }, "VGA:", Color::light_grey()},
 		{ {19 * 8, 27 * 8 }, "AMP:", Color::light_grey()}
@@ -287,7 +288,7 @@ OptionsField options_wm8731_boost_mode {
 	};
 
 	Checkbox check_rogerbeep {
-		{ 3 * 8, ( 16 * 8 ) + 4 },
+		{ 3 * 8, ( 16 * 8 ) + 7 },
 		10,
 		"Roger beep",
 		false
@@ -295,11 +296,18 @@ OptionsField options_wm8731_boost_mode {
 
 	Checkbox check_rxactive {
 		{ 3 * 8, ( 21 * 8 ) - 4 },
-		8,
+		18,								// it was 8, but if it is string size should be 18
 		"RX audio listening",
 		false
 	};
 
+	Checkbox check_common_freq_tx_rx {
+		{ 18 * 8, ( 16* 8 ) + 7 },
+		8,
+		"F = F_RX",
+		false
+	};
+
 	NumberField field_volume {
 		{ 11* 8, 23 * 8 },
 		2,
@@ -319,7 +327,7 @@ OptionsField options_wm8731_boost_mode {
 	};
 	
 	NumberField field_squelch {
-		{ 20 * 8, 25 * 8 },
+		{ 23 * 8, 25 * 8 },
 		2,
 		{ 0, 99 },
 		1,
@@ -327,7 +335,7 @@ OptionsField options_wm8731_boost_mode {
 	};
 
 	FrequencyField field_rxfrequency {
-		{ 7 * 8, 25 * 8 },
+		{ 10 * 8, 25 * 8 },
 	};
 
 	NumberField field_rxlna {
@@ -347,7 +355,7 @@ OptionsField options_wm8731_boost_mode {
 	};
 
 	NumberField field_rxamp {
-		{ 23 * 8, 27 * 8 },
+		{ 24 * 8, 27 * 8 },
 		1,
 		{ 0, 1 },
 		1,

firmware/application/apps/ui_recon.cpp

@@ -30,10 +30,9 @@
 #define MSG_RECON_SET_MODULATION 10000          // for handle_retune to know that recon thread triggered a modulation change. f is the index of the modulation
 #define MSG_RECON_SET_BANDWIDTH 20000           // for handle_retune to know that recon thread triggered a bandwidth change. f is the new bandwidth value index for current modulation
 #define MSG_RECON_SET_STEP 30000                // for handle_retune to know that recon thread triggered a bandwidth change. f is the new bandwidth value index for current modulation
-#define MSG_RECON_SET_RECEIVER_BANDWIDTH 40000 	// for handle_retune to know that recon thread triggered a receiver bandwidth change. f is the new bandwidth in hz
+#define MSG_RECON_SET_RECEIVER_BANDWIDTH 40000  // for handle_retune to know that recon thread triggered a receiver bandwidth change. f is the new bandwidth in hz
 #define MSG_RECON_SET_RECEIVER_SAMPLERATE 50000 // for handle_retune to know that recon thread triggered a receiver samplerate change. f is the new samplerate in hz/s
 
-
 using namespace portapack;
 using portapack::memory::map::backup_ram;
 
@@ -104,7 +103,7 @@ namespace ui {
 
 	void ReconThread::change_recon_direction() {
 		_fwd = !_fwd;
-		//        chThdSleepMilliseconds(300);	//Give some pause after reversing recon direction
+		//chThdSleepMilliseconds(300);	//Give some pause after reversing recon direction
 	}
 
 	bool ReconThread::get_recon_direction() {
@@ -150,9 +149,11 @@ namespace ui {
 		return 0;
 	}
 
-	void ReconThread::run() {
-
-		if (frequency_list_.size() > 0 )	{			//IF THERE IS A FREQUENCY LIST ...
+	void ReconThread::run()
+	{
+		//IF THERE IS A FREQUENCY LIST ...
+		if (frequency_list_.size() > 0 )
+		{
 			int64_t minfreq = 0 ;
 			int64_t maxfreq = 0 ;
 			bool has_looped = false ;
@@ -200,121 +201,93 @@ namespace ui {
 			last_entry . bandwidth = -1 ;
 			last_entry . step = -1 ;
 			bool restart_recon = false;					//Flag whenever scanning is restarting after a pause
-			int16_t last_index = -1 ;														
 
-			while( !chThdShouldTerminate() && frequency_list_.size() > 0 ) {
-				has_looped = false ;
-				entry_has_changed = false ;
+			while( !chThdShouldTerminate() && frequency_list_.size() > 0 ) 
+			{
 				if( !_freq_delete )
 				{
-					if( _recon || _stepper != 0 || _index_stepper != 0 || last_index !=frequency_index )
+					has_looped = false ;
+					if( last_entry . frequency_a != freq || entry_has_changed )
 					{
-						last_index = frequency_index ;
-						if( last_entry . frequency_a != freq )
+						last_entry . frequency_a = freq ;
+						receiver_model.set_tuning_frequency( freq );	// Retune
+						message.freq = freq ;
+						message.range = frequency_index ;
+						EventDispatcher::send_message(message);
+					}
+					entry_has_changed = false ;
+
+					// Set modulation if any
+					if( last_entry . modulation != frequency_list_[ frequency_index ] . modulation && frequency_list_[ frequency_index ] . modulation >= 0 )
+					{
+						last_entry . modulation = frequency_list_[ frequency_index ]. modulation;
+						message.freq  = last_entry . modulation  ;
+						message.range = MSG_RECON_SET_MODULATION ;
+						EventDispatcher::send_message(message);
+					}
+					// Set bandwidth if any
+					if( last_entry . bandwidth != frequency_list_[ frequency_index ] . bandwidth && frequency_list_[ frequency_index ] . bandwidth >= 0 )
+					{
+						last_entry . bandwidth = frequency_list_[ frequency_index ]. bandwidth;
+						message.freq  = last_entry . bandwidth  ;
+						message.range = MSG_RECON_SET_BANDWIDTH ;
+						EventDispatcher::send_message(message);
+					}
+					if( last_entry . step != frequency_list_[ frequency_index ] . step && frequency_list_[ frequency_index ] . step >= 0 )
+					{
+						last_entry . step = frequency_list_[ frequency_index ]. step ;
+						message.freq  = last_entry . step ;
+						message.range = MSG_RECON_SET_STEP ;
+						EventDispatcher::send_message(message);
+						step = freqman_entry_get_step_value( last_entry . step );
+					}
+
+					if( _recon || _stepper != 0 || _index_stepper != 0 )
+					{
+						if( _freq_lock == 0 || _stepper != 0 || _index_stepper != 0 )  //normal recon (not performing freq_lock)
 						{
-							last_entry . frequency_a = freq ;
-							receiver_model.set_tuning_frequency( freq );	// Retune
-							message.freq = freq ;
-							message.range = frequency_index ;
-							EventDispatcher::send_message(message);
-						}
-						// Set modulation if any
-						if( last_entry . modulation != frequency_list_[ frequency_index ] . modulation && frequency_list_[ frequency_index ] . modulation >= 0 )
-						{
-							last_entry . modulation = frequency_list_[ frequency_index ]. modulation;
-							message.freq  = last_entry . modulation  ;
-							message.range = MSG_RECON_SET_MODULATION ;
-							EventDispatcher::send_message(message);
-						}
-						// Set bandwidth if any
-						if( last_entry . bandwidth != frequency_list_[ frequency_index ] . bandwidth && frequency_list_[ frequency_index ] . bandwidth >= 0 )
-						{
-							last_entry . bandwidth = frequency_list_[ frequency_index ]. bandwidth;
-							message.freq  = last_entry . bandwidth  ;
-							message.range = MSG_RECON_SET_BANDWIDTH ;
-							EventDispatcher::send_message(message);
-						}
-						if( last_entry . step != frequency_list_[ frequency_index ] . step && frequency_list_[ frequency_index ] . step >= 0 )
-						{
-							last_entry . step = frequency_list_[ frequency_index ]. step ;
-							message.freq  = last_entry . step ;
-							message.range = MSG_RECON_SET_STEP ;
-							EventDispatcher::send_message(message);
-							step = freqman_entry_get_step_value( last_entry . step );
-						}
-						if( _freq_lock == 0 || _stepper != 0 )  //normal recon (not performing freq_lock)
-						{
-							if( !restart_recon || _stepper != 0 )
+							if( !restart_recon || _stepper != 0 || _index_stepper != 0 )
 							{
 
-								/* we are doing a range */
-								if( frequency_list_[ frequency_index ] . type == RANGE ) {
-
-									if ( ( _fwd && _stepper == 0 ) || _stepper > 0 ) {
-										//forward
-										freq += step ;
-										// if bigger than range max
-										if (freq > maxfreq ) {
-											// when going forward we already know that we can skip a whole range => two values in the list
-											frequency_index ++ ;
-											entry_has_changed = true ;
-											// looping
-											if( (uint32_t)frequency_index >= frequency_list_.size() )
-											{
-												has_looped = true ;
-												frequency_index = 0  ;
-											}
-										}
-									}
-									else  if( (!_fwd && _stepper == 0 ) || _stepper < 0 ) {
-										//reverse
-										freq -= step ;
-										// if lower than range min
-										if (freq < minfreq ) {
-											// when back we have to check one step at a time
-											frequency_index -- ;
-											entry_has_changed = true ;
-											// looping
-											if( frequency_index < 0 )
-											{
-												has_looped = true ;
-												frequency_index = frequency_list_.size() - 1 ;
-											}
-										}
-									}
-								}
-								else if( frequency_list_[ frequency_index ] . type == SINGLE ) {
-									if ( (_fwd && _stepper == 0 ) || _stepper > 0 ) {					//forward
-										frequency_index++;
-										entry_has_changed = true ;
-										// looping
-										if( (uint32_t)frequency_index >= frequency_list_.size() )
-										{
-											has_looped = true ;
-											frequency_index = 0 ;
-										}
-									}
-									else if( (!_fwd && _stepper == 0 ) || _stepper < 0 ) {
-										//reverse
-										frequency_index--;
-										entry_has_changed = true ;
-										// if previous if under the list => go back from end
-										if( frequency_index < 0 )
-										{
-											has_looped = true ;
-											frequency_index =  frequency_list_.size() - 1 ;
-										}
-									}
-								}
-								else if( frequency_list_[ frequency_index ] . type == HAMRADIO )
+								if( _index_stepper == 0 )
 								{
-									if ( (_fwd && _stepper == 0 ) || _stepper > 0 ) {					//forward
-										if( ( minfreq != maxfreq ) && freq == minfreq )
-										{
-											freq = maxfreq ;
+									/* we are doing a range */
+									if( frequency_list_[ frequency_index ] . type == RANGE ) {
+										if ( ( _fwd && _stepper == 0 ) || _stepper > 0 ) {
+											//forward
+											freq += step ;
+											// if bigger than range max
+											if (freq > maxfreq ) {
+												// when going forward we already know that we can skip a whole range => two values in the list
+												frequency_index ++ ;
+												entry_has_changed = true ;
+												// looping
+												if( (uint32_t)frequency_index >= frequency_list_.size() )
+												{
+													has_looped = true ;
+													frequency_index = 0  ;
+												}
+											}
 										}
-										else
-										{
+										else  if( (!_fwd && _stepper == 0 ) || _stepper < 0 ) {
+											//reverse
+											freq -= step ;
+											// if lower than range min
+											if (freq < minfreq ) {
+												// when back we have to check one step at a time
+												frequency_index -- ;
+												entry_has_changed = true ;
+												// looping
+												if( frequency_index < 0 )
+												{
+													has_looped = true ;
+													frequency_index = frequency_list_.size() - 1 ;
+												}
+											}
+										}
+									}
+									else if( frequency_list_[ frequency_index ] . type == SINGLE ) {
+										if ( (_fwd && _stepper == 0 ) || _stepper > 0 ) {					//forward
 											frequency_index++;
 											entry_has_changed = true ;
 											// looping
@@ -324,15 +297,8 @@ namespace ui {
 												frequency_index = 0 ;
 											}
 										}
-									}
-									else if( (!_fwd  && _stepper == 0 ) || _stepper < 0 ) {
-										//reverse
-										if( ( minfreq != maxfreq ) && freq == maxfreq )
-										{
-											freq = minfreq ;
-										}
-										else
-										{
+										else if( (!_fwd && _stepper == 0 ) || _stepper < 0 ) {
+											//reverse
 											frequency_index--;
 											entry_has_changed = true ;
 											// if previous if under the list => go back from end
@@ -343,98 +309,132 @@ namespace ui {
 											}
 										}
 									}
+									else if( frequency_list_[ frequency_index ] . type == HAMRADIO )
+									{
+										if ( (_fwd && _stepper == 0 ) || _stepper > 0 ) {					//forward
+											if( ( minfreq != maxfreq ) && freq == minfreq )
+											{
+												freq = maxfreq ;
+											}
+											else
+											{
+												frequency_index++;
+												entry_has_changed = true ;
+												// looping
+												if( (uint32_t)frequency_index >= frequency_list_.size() )
+												{
+													has_looped = true ;
+													frequency_index = 0 ;
+												}
+											}
+										}
+										else if( (!_fwd  && _stepper == 0 ) || _stepper < 0 ) {
+											//reverse
+											if( ( minfreq != maxfreq ) && freq == maxfreq )
+											{
+												freq = minfreq ;
+											}
+											else
+											{
+												frequency_index--;
+												entry_has_changed = true ;
+												// if previous if under the list => go back from end
+												if( frequency_index < 0 )
+												{
+													has_looped = true ;
+													frequency_index =  frequency_list_.size() - 1 ;
+												}
+											}
+										}
+									}
+									// set index to boundary if !continuous
+									if( has_looped && !_continuous )
+									{
+										entry_has_changed = true ;
+										/* prepare values for the next run, when user will resume */
+										if( ( _fwd && _stepper == 0 ) || _stepper > 0 )
+										{
+											frequency_index = 0 ;
+										}
+										else if( ( !_fwd && _stepper == 0 ) || _stepper < 0 )
+										{
+											frequency_index = frequency_list_.size() - 1 ;
+										}
+									}
 								}
-								// set index to boundary if !continuous
+								else
+								{
+									if( _index_stepper > 0 )
+										frequency_index ++ ;
+									if( _index_stepper < 0 )
+										frequency_index -- ;
+									if( frequency_index < 0 )
+										frequency_index = frequency_list_.size() - 1 ;
+									if( (unsigned)frequency_index >= frequency_list_.size() )
+										frequency_index = 0 ;
+									entry_has_changed = true ;
+								}
+
+								// reload entry if changed
+								if( entry_has_changed ){
+									switch( frequency_list_[ frequency_index ] . type ){
+										case SINGLE:
+											freq = frequency_list_[ frequency_index ] . frequency_a ;
+											break;
+										case RANGE:
+											minfreq = frequency_list_[ frequency_index ] . frequency_a ;
+											maxfreq = frequency_list_[ frequency_index ] . frequency_b ;
+											if( ( _fwd && _stepper == 0 ) || _stepper > 0 || _index_stepper > 0 )
+											{
+												freq = minfreq ;
+											}
+											else if( ( !_fwd && _stepper == 0 ) || _stepper < 0 || _index_stepper < 0 )
+											{
+												freq = maxfreq ;
+											}
+											break;
+										case HAMRADIO:
+											minfreq = frequency_list_[ frequency_index ] . frequency_a ;
+											maxfreq = frequency_list_[ frequency_index ] . frequency_b ;
+											if(  ( _fwd && _stepper == 0 ) || _stepper > 0 || _index_stepper > 0 )
+											{
+												freq = minfreq ;
+											}
+											else if( ( !_fwd && _stepper == 0 ) || _stepper < 0 || _index_stepper < 0 )
+											{
+												freq = maxfreq ;
+											}
+											break;
+										default:
+											break;
+									}
+									restart_recon = true ;
+								} 
+								// send a pause message with the right freq
 								if( has_looped && !_continuous )
 								{
-									entry_has_changed = true ;
-									/* prepare values for the next run, when user will resume */
-									if( ( _fwd && _stepper == 0 ) || _stepper > 0 )
-									{
-										frequency_index = 0 ;
-									}
-									else if( ( !_fwd && _stepper == 0 ) || _stepper < 0 )
-									{
-										frequency_index = frequency_list_.size() - 1 ;
-									}
+									// signal pause to handle_retune
+									message.freq = freq ;
+									message.range = MSG_RECON_PAUSE ;
+									EventDispatcher::send_message(message);
+									receiver_model.set_tuning_frequency( freq );	// Retune to actual freq
 								}
-							}
+								if( _stepper < 0 ) _stepper ++ ;
+								if( _stepper > 0 ) _stepper -- ;
+								if( _index_stepper < 0 ) _index_stepper ++ ;
+								if( _index_stepper > 0 ) _index_stepper -- ;
+							} // if( !restart_recon || _stepper != 0 || _index_stepper != 0 )
 							else
 							{
 								restart_recon = false ;
 							}
-						}
-					}
-					else
-					{
-						restart_recon = true ;
-					}
-					if( _index_stepper != 0 )
-					{
-						if( _index_stepper > 0 )
-							frequency_index ++ ;
-						if( _index_stepper < 0 )
-							frequency_index -- ;
-						if( frequency_index < 0 )
-							frequency_index = frequency_list_.size() - 1 ;
-						if( (unsigned)frequency_index >= frequency_list_.size() )
-							frequency_index = 0 ;
-						entry_has_changed = true ;
-					}
-					// reload entry if changed
-					if( entry_has_changed ){
-						switch( frequency_list_[ frequency_index ] . type ){
-							case SINGLE:
-								freq = frequency_list_[ frequency_index ] . frequency_a ;
-								break;
-							case RANGE:
-								minfreq = frequency_list_[ frequency_index ] . frequency_a ;
-								maxfreq = frequency_list_[ frequency_index ] . frequency_b ;
-								if( ( _fwd && _stepper == 0 ) || _stepper > 0 || _index_stepper > 0 )
-								{
-									freq = minfreq ;
-								}
-								else if( ( !_fwd && _stepper == 0 ) || _stepper < 0 || _index_stepper < 0 )
-								{
-									freq = maxfreq ;
-								}
-								break;
-							case HAMRADIO:
-								minfreq = frequency_list_[ frequency_index ] . frequency_a ;
-								maxfreq = frequency_list_[ frequency_index ] . frequency_b ;
-								if(  ( _fwd && _stepper == 0 ) || _stepper > 0 || _index_stepper > 0 )
-								{
-									freq = minfreq ;
-								}
-								else if( ( !_fwd && _stepper == 0 ) || _stepper < 0 || _index_stepper < 0 )
-								{
-									freq = maxfreq ;
-								}
-								break;
-							default:
-								break;
-						}
-
-					} 
-					// send a pause message with the right freq
-					if( has_looped && !_continuous )
-					{
-						// signal pause to handle_retune
-						receiver_model.set_tuning_frequency( freq );	// Retune to actual freq
-						message.freq = freq ;
-						message.range = MSG_RECON_PAUSE ;
-						EventDispatcher::send_message(message);
-					}
-					if( _stepper < 0 ) _stepper ++ ;
-					if( _stepper > 0 ) _stepper -- ;
-					if( _index_stepper < 0 ) _index_stepper ++ ;
-					if( _index_stepper > 0 ) _index_stepper -- ;
-
-				}
+						} // if( _freq_lock == 0 || _stepper != 0 || _index_stepper != 0 ) 
+					} // if( _recon || _stepper != 0 || _index_stepper != 0 )
+				} // if( !freq_delete )
 				chThdSleepMilliseconds( _lock_duration );	//Needed to (eventually) stabilize the receiver into new freq
-			}
-		}
-	}
+			} //while( !chThdShouldTerminate() && frequency_list_.size() > 0 )
+		}//if (frequency_list_.size() > 0 )		
+	} //ReconThread::run
 
 	bool ReconView::check_sd_card()
 	{
@@ -443,9 +443,7 @@ namespace ui {
 
 	void ReconView::set_display_freq( int64_t freq )
 	{
-		int64_t freqMHz = ( freq / 1000000 );
-		int64_t freqMhzFloatingPart = ( freq - ( 1000000 * freqMHz ) ) / 100 ;
-		big_display.set( "FREQ: "+to_string_dec_int( freqMHz )+"."+to_string_dec_int( freqMhzFloatingPart )+" MHz" );
+		big_display.set( "FREQ: "+to_string_short_freq( freq )+" MHz" );
 	}
 
 	void ReconView::handle_retune( int64_t freq , uint32_t index ) {
@@ -477,8 +475,8 @@ namespace ui {
 				receiver_model.disable();
 				baseband::shutdown();
 				change_mode( freq );
-				if ( !recon_thread->is_recon() ) 						//for some motive, audio output gets stopped.
-					audio::output::start();								    //So if recon was stopped we resume audio
+				if ( !recon_thread->is_recon() ) // for some motive, audio output gets stopped.
+					audio::output::start();      // so if recon was stopped we resume audio
 				receiver_model.enable();
 				field_mode.set_selected_index( freq );
 				return ;
@@ -528,32 +526,32 @@ namespace ui {
 					}
 				}
 			}
-		}
-
-		uint32_t freq_lock = recon_thread->is_freq_lock();
-
-		if( freq_lock == 0 ) {
-			//NO FREQ LOCK, ONGOING STANDARD SCANNING
-			if( index < 1000 && index < frequency_list.size() )
+			text_cycle.set_text( to_string_dec_uint( index + 1 , 3 ) );
+			if(frequency_list[index].description.size() > 0) 
 			{
-				text_cycle.set_text( to_string_dec_uint( index + 1 , 3 ) );
-				if(frequency_list[index].description.size() > 0) 
+				switch( frequency_list[current_index].type )
 				{
-					switch( frequency_list[current_index].type )
-					{
-						case RANGE:
-							desc_cycle.set( "R: " + frequency_list[current_index].description ); //Show new description
-							break ;
-						case HAMRADIO:
-							desc_cycle.set( "H: " + frequency_list[current_index].description ); //Show new description
-							break ;
-						default:
-						case SINGLE:
-							desc_cycle.set( "S: " + frequency_list[current_index].description ); //Show new description
-							break ;
-					}
+					case RANGE:
+						desc_cycle.set( "R: " + frequency_list[current_index].description ); //Show new description
+						break ;
+					case HAMRADIO:
+						desc_cycle.set( "H: " + frequency_list[current_index].description ); //Show new description
+						break ;
+					default:
+					case SINGLE:
+						desc_cycle.set( "S: " + frequency_list[current_index].description ); //Show new description
+						break ;
 				}
 			}
+			else
+			{
+				desc_cycle.set( "...no description..." ); //Show new description
+			}
+		}
+	
+		uint32_t freq_lock = recon_thread->is_freq_lock();
+		if( freq_lock == 0 ) {
+			//NO FREQ LOCK, ONGOING STANDARD SCANNING
 			big_display.set_style(&style_white);
 			if( !userpause )
 				button_pause.set_text("<PAUSE>");	
@@ -647,7 +645,7 @@ namespace ui {
 		static int32_t last_db = 999999 ;
 		static int32_t last_nb_match = 999999 ;
 		static int32_t last_timer = -1 ;
-		if( recon_thread && frequency_list.size() > 0 )
+		if( recon_thread )
 		{
 			int32_t nb_match = recon_thread->is_freq_lock();
 			if( last_db != db )
@@ -672,15 +670,6 @@ namespace ui {
 				text_timer.set( "TIMER: " + to_string_dec_int( timer ) );
 			}
 		}
-		else
-		{
-			if( refresh_display )
-			{
-				text_max.set( to_string_dec_int( db ) + " db" );
-				freq_stats.set( "RSSI: " +to_string_dec_int( rssi.get_min() )+"/"+to_string_dec_int( rssi.get_avg() )+"/"+to_string_dec_int( rssi.get_max() )+" db" );
-				text_timer.set( "TIMER: " + to_string_dec_int( timer ) );
-			}
-		}
 	}
 
 	ReconView::ReconView( NavigationView& nav) : nav_ { nav } {
@@ -722,15 +711,11 @@ namespace ui {
 		} );
 
 		// Recon directory
-		if( check_sd_card() ) {                     // Check to see if SD Card is mounted
+		if( check_sd_card() ) {					 // Check to see if SD Card is mounted
 			make_new_directory( u"/RECON" );
 			sd_card_mounted = true ;
 		}
-
 		def_step = 0 ;
-		change_mode(AM_MODULATION);	//Start on AM
-		field_mode.set_by_value(AM_MODULATION);	//Reflect the mode into the manual selector
-
 		//HELPER: Pre-setting a manual range, based on stored frequency
 		rf::Frequency stored_freq = persistent_memory::tuned_frequency();
 		receiver_model.set_tuning_frequency( stored_freq );
@@ -748,14 +733,12 @@ namespace ui {
 		load_hamradios = persistent_memory::recon_load_hamradios();
 		update_ranges = persistent_memory::recon_update_ranges_when_recon();
 
-		//Loading input and output file from settings
-		ReconSetupLoadStrings( "RECON/RECON.CFG" , input_file , output_file , recon_lock_duration , recon_lock_nb_match , squelch , recon_match_mode , wait , recon_lock_duration , volume );
-
 		field_volume.set_value( volume );
-
-		// load auto common app settings
 		if( sd_card_mounted )
 		{
+			//Loading input and output file from settings
+			ReconSetupLoadStrings( "RECON/RECON.CFG" , input_file , output_file , recon_lock_duration , recon_lock_nb_match , squelch , recon_match_mode , wait , recon_lock_duration , volume );
+			// load auto common app settings
 			auto rc = settings.load("recon", &app_settings);
 			if(rc == SETTINGS_OK) {
 				field_lna.set_value(app_settings.lna);
@@ -764,12 +747,7 @@ namespace ui {
 				receiver_model.set_rf_amp(app_settings.rx_amp);
 			}
 		}
-		button_scanner_mode.set_style( &style_blue );
-		button_scanner_mode.set_text( "RECON" );
-		file_name.set( "USE:" );
-
-		field_squelch.set_value( squelch );
-
+	
 		button_manual_start.on_select = [this, &nav](ButtonWithEncoder& button) {
 			auto new_view = nav_.push<FrequencyKeypadView>(frequency_range.min);
 			new_view->on_changed = [this, &button](rf::Frequency f) {
@@ -1001,21 +979,21 @@ namespace ui {
 							switch( frequency_list[current_index].type )
 							{
 								case RANGE:
-									desc_cycle.set( "R: " + frequency_list[current_index].description ); //Show new description
+									desc_cycle.set( "R: " + frequency_list[current_index].description );
 									break ;
 								case HAMRADIO:
-									desc_cycle.set( "H: " + frequency_list[current_index].description ); //Show new description
+									desc_cycle.set( "H: " + frequency_list[current_index].description );
 									break ;
 								default:
 								case SINGLE:
-									desc_cycle.set( "S: " + frequency_list[current_index].description ); //Show new description
+									desc_cycle.set( "S: " + frequency_list[current_index].description );
 									break ;
 							}
 						}
 						else
 						{
-							desc_cycle.set( "no description" ); //Show new description
-							show_max( true );					//UPDATE new list size on screen
+							desc_cycle.set( "...no description..." );
+							show_max( true );
 						}
 						text_cycle.set_text( to_string_dec_uint( current_index + 1 , 3 ) );
 
@@ -1169,7 +1147,6 @@ namespace ui {
 
 				def_step = step_mode.selected_index(); // max range val
 
-
 				manual_freq_entry . type = RANGE ;
 				manual_freq_entry . description =
 					"R " + to_string_short_freq(frequency_range.min) + ">"
@@ -1190,11 +1167,14 @@ namespace ui {
 				freq_stats.set( "0/0/0" );
 
 				show_max(); /* display step information */
-				text_cycle.set_text( "MANUAL SEARCH" );
+				text_cycle.set_text( "1" );
+				text_max.set( "/1" );
 				button_scanner_mode.set_style( &style_white );
 				button_scanner_mode.set_text( "MSEARCH" );
 				file_name.set_style( &style_white );
-				file_name.set( "USE: MANUAL RANGE" );
+				file_name.set( "MANUAL RANGE RECON" );
+				desc_cycle.set_style( &style_white );
+				desc_cycle.set( "MANUAL RANGE RECON" );
 
 				start_recon_thread();
 				user_resume();
@@ -1232,7 +1212,7 @@ namespace ui {
 		button_restart.on_select = [this](Button&) {
 			if( frequency_list.size() > 0 )
 			{
-				def_step = step_mode.selected_index();     //Use def_step from manual selector
+				def_step = step_mode.selected_index();	 //Use def_step from manual selector
 				frequency_file_load( true );
 				if( recon_thread )
 				{
@@ -1251,9 +1231,20 @@ namespace ui {
 				show_max();
 				user_resume();
 			}
+			if( scanner_mode )
+			{
+				file_name.set_style( &style_red );
+				button_scanner_mode.set_style( &style_red );
+				button_scanner_mode.set_text( "SCANNER" );
+			}
+			else
+			{
+				file_name.set_style( &style_blue );
+				button_scanner_mode.set_style( &style_blue );
+				button_scanner_mode.set_text( "RECON" );
+			}
 		};
 
-
 		button_add.on_select = [this](ButtonWithEncoder&) {  //frequency_list[current_index]
 			if( !scanner_mode)
 			{
@@ -1377,7 +1368,8 @@ namespace ui {
 
 			ReconSetupSaveStrings( "RECON/RECON.CFG" , input_file , output_file , recon_lock_duration , recon_lock_nb_match , squelch , recon_match_mode , wait , recon_lock_duration , field_volume.value() );
 
-			user_pause();
+			if( frequency_list.size() != 0 )
+				user_pause();
 
 			auto open_view = nav.push<ReconSetupView>(input_file,output_file,recon_lock_duration,recon_lock_nb_match,recon_match_mode);
 			open_view -> on_changed = [this](std::vector<std::string> result) {
@@ -1385,7 +1377,7 @@ namespace ui {
 				output_file = result[1];
 				recon_lock_duration = strtol( result[2].c_str() , nullptr , 10 );
 				recon_lock_nb_match = strtol( result[3].c_str() , nullptr , 10 );
-				recon_match_mode    = strtol( result[4].c_str() , nullptr , 10 );
+				recon_match_mode	= strtol( result[4].c_str() , nullptr , 10 );
 
 				ReconSetupSaveStrings( "RECON/RECON.CFG" , input_file , output_file , recon_lock_duration , recon_lock_nb_match , squelch , recon_match_mode , wait , recon_lock_duration , field_volume.value() );
 
@@ -1455,7 +1447,6 @@ namespace ui {
 			}
 		};
 
-		//PRE-CONFIGURATION:
 		field_wait.on_change = [this](int32_t v)
 		{
 			wait = v ;
@@ -1476,6 +1467,7 @@ namespace ui {
 				field_wait.set_style( &style_green );
 			}
 		};
+
 		field_lock_wait.on_change = [this](int32_t v)
 		{
 			lock_wait = v ;
@@ -1500,6 +1492,22 @@ namespace ui {
 				field_lock_wait.set_style(&style_red);
 			}
 		};
+		
+		field_squelch.on_change = [this](int32_t v) {
+			squelch = v ;
+		};
+
+		field_volume.on_change = [this](int32_t v) { 
+			this->on_headphone_volume_changed(v);	
+		};
+
+		//PRE-CONFIGURATION:
+		change_mode(AM_MODULATION);	//Start on AM
+		field_mode.set_by_value(AM_MODULATION);	//Reflect the mode into the manual selector
+		button_scanner_mode.set_style( &style_blue );
+		button_scanner_mode.set_text( "RECON" );
+		file_name.set( "=>" );
+		field_squelch.set_value( squelch );
 
 		field_wait.set_value(wait);
 		lock_wait = ( 4 * ( recon_lock_duration * recon_lock_nb_match ) );
@@ -1507,16 +1515,13 @@ namespace ui {
 		if( lock_wait < 400 )
 			lock_wait = 400 ;
 		field_lock_wait.set_value(lock_wait);
-
-		field_squelch.on_change = [this](int32_t v) {
-			squelch = v ;
-		};
-		field_volume.on_change = [this](int32_t v) { this->on_headphone_volume_changed(v);	};
 		field_volume.set_value((receiver_model.headphone_volume() - audio::headphone::volume_range().max).decibel() + 99);
 
 		//FILL STEP OPTIONS
 		freqman_set_modulation_option( field_mode );
 		freqman_set_step_option( step_mode );
+		
+		receiver_model.set_tuning_frequency( portapack::persistent_memory::tuned_frequency() );	// Retune
 
 		if( filedelete )
 		{
@@ -1524,11 +1529,11 @@ namespace ui {
 		}
 
 		frequency_file_load( false ); /* do not stop all at start */
-		if( recon_thread && frequency_list.size() > 0 )
+		if( recon_thread )
 		{
 			recon_thread->set_lock_duration( recon_lock_duration );
 			recon_thread->set_lock_nb_match( recon_lock_nb_match );
-			if( update_ranges )
+			if( update_ranges && frequency_list.size() > 0 )
 			{
 				button_manual_start.set_text( to_string_short_freq( frequency_list[ current_index ] . frequency_a ) );
 				frequency_range.min = frequency_list[ current_index ] . frequency_a ;
@@ -1543,7 +1548,6 @@ namespace ui {
 					frequency_range.max = frequency_list[ current_index ] . frequency_a ;
 				}
 			}
-
 			if( autostart )
 			{
 				timer = 0 ; 	 		//Will trigger a recon_resume() on_statistics_update, also advancing to next freq.
@@ -1566,42 +1570,77 @@ namespace ui {
 		}
 		audio::output::stop();
 
-		if( !scanner_mode)
+		def_step = step_mode.selected_index();		// use def_step from manual selector
+		frequency_list.clear();					 // clear the existing frequency list (expected behavior)
+		std::string file_input = input_file ;	   // default recon mode
+		if( scanner_mode )
 		{
-			def_step = step_mode.selected_index();		//Use def_step from manual selector
-			frequency_list.clear();                         // clear the existing frequency list (expected behavior)
-			if( !load_freqman_file_ex( input_file , frequency_list, load_freqs, load_ranges, load_hamradios ) )
-			{
-				desc_cycle.set(" NO " + input_file + ".TXT FILE ..." );
-				file_name.set_style( &style_white );
-				file_name.set( "USE: NO DATA" );
-			}
-			else
-			{
-				file_name.set_style( &style_blue );
-				file_name.set( "USE: "+input_file + ".TXT" );
-			}
-			step_mode.set_selected_index(def_step); //Impose the default step into the manual step selector
+			file_input = output_file ;
+			file_name.set_style( &style_red );
+			button_scanner_mode.set_style( &style_red );
+			button_scanner_mode.set_text( "SCANNER" );
 		}
 		else
 		{
-			def_step = step_mode.selected_index();		//Use def_step from manual selector
-			frequency_list.clear();                         // clear the existing frequency list (expected behavior)
-			if( !load_freqman_file_ex( output_file , frequency_list, load_freqs, load_ranges, load_hamradios ) )
+			file_name.set_style( &style_blue );
+			button_scanner_mode.set_style( &style_blue );
+			button_scanner_mode.set_text( "RECON" );
+		}
+		file_name.set_style( &style_white );
+		desc_cycle.set_style( &style_white );
+		if( !load_freqman_file_ex( file_input , frequency_list, load_freqs, load_ranges, load_hamradios ) )
+		{	
+			file_name.set_style( &style_red );
+			desc_cycle.set_style( &style_red );
+			desc_cycle.set(" NO " + file_input + ".TXT FILE ..." );
+			file_name.set( "=> NO DATA" );
+		}
+		else
+		{
+			file_name.set( "=> "+file_input );
+			if( frequency_list.size() == 0 )
 			{
-				desc_cycle.set(" NO " + output_file + ".TXT FILE ..." );
-				file_name.set_style( &style_white );
-				file_name.set( "USE:" );
+				file_name.set_style( &style_red );
+				desc_cycle.set_style( &style_red );
+				desc_cycle.set("/0 no entries in list" );
+				file_name.set( "BadOrEmpty "+file_input );
 			}
 			else
 			{
-				file_name.set( "USE: "+output_file + ".TXT" );
-				file_name.set_style( &style_red );
+				if( frequency_list.size() > FREQMAN_MAX_PER_FILE )
+				{
+					file_name.set_style( &style_yellow );
+					desc_cycle.set_style( &style_yellow );
+				}
 			}
-			step_mode.set_selected_index(def_step); //Impose the default step into the manual step selector
 		}
-
+		step_mode.set_selected_index(def_step); //Impose the default step into the manual step selector
 		start_recon_thread();
+		std::string description = "...no description..." ;
+		if( frequency_list.size() != 0 )
+		{
+			current_index = 0 ;
+			recon_thread-> set_freq_index( 0 );
+			switch( frequency_list[current_index].type )
+			{
+				case RANGE:
+					description = "R: " + frequency_list[current_index].description ;
+					break ;
+				case HAMRADIO:
+					description = "H: " + frequency_list[current_index].description ; 
+					break ;
+				default:
+				case SINGLE:
+					description = "S: " + frequency_list[current_index].description ;
+					break ;
+			}
+			text_cycle.set_text( to_string_dec_uint( current_index + 1 , 3 ) );
+		}
+		else
+		{
+			text_cycle.set_text( " " );
+		}
+		desc_cycle.set( description );
 	}
 
 	void ReconView::on_statistics_update(const ChannelStatistics& statistics) {
@@ -1751,12 +1790,12 @@ namespace ui {
 	void ReconView::recon_resume() {
 		audio::output::stop();
 		if( !recon_thread->is_recon() )
-			recon_thread->set_recon(true);       // RESUME!
+			recon_thread->set_recon(true);	   // RESUME!
 		big_display.set_style(&style_white); //Back to grey color
 	}
 
 	void ReconView::user_pause() {
-		timer = 0 ; 	 		        // Will trigger a recon_resume() on_statistics_update, also advancing to next freq.
+		timer = 0 ; 	 				// Will trigger a recon_resume() on_statistics_update, also advancing to next freq.
 										//button_pause.set_text("<RESUME>");	//PAUSED, show resume
 		userpause=true;
 		continuous_lock=false;
@@ -1764,9 +1803,9 @@ namespace ui {
 	}
 
 	void ReconView::user_resume() {
-		timer = 0 ; 	 		        // Will trigger a recon_resume() on_statistics_update, also advancing to next freq.
+		timer = 0 ; 	 				// Will trigger a recon_resume() on_statistics_update, also advancing to next freq.
 										//button_pause.set_text("<PAUSE>");		//Show button for pause
-		userpause=false;			    // Resume recon
+		userpause=false;				// Resume recon
 		continuous_lock=false;
 		recon_resume();
 	}

firmware/application/apps/ui_recon.hpp

@@ -39,6 +39,8 @@
 #include "file.hpp"
 #include "app_settings.hpp"
 
+// maximum usable freq
+#define MAX_UFREQ 7200000000
 
 namespace ui {
 
@@ -118,8 +120,6 @@ namespace ui {
 
 			void focus() override;
 
-			void big_display_freq( int64_t f );
-
 			const Style style_grey {		// recon
 				.font = font::fixed_8x16,
 					.background = Color::black(),
@@ -178,7 +178,7 @@ namespace ui {
 			bool check_sd_card();
 			void handle_coded_squelch(const uint32_t value);
 
-			jammer::jammer_range_t frequency_range { false, 0, 0 };  //perfect for manual recon task too...
+			jammer::jammer_range_t frequency_range { false, 0, MAX_UFREQ };  //perfect for manual recon task too...
 			int32_t squelch { 0 };
 			int32_t db { 0 };
 			int32_t timer { 0 };
@@ -200,8 +200,6 @@ namespace ui {
 			bool load_hamradios = { true };
 			bool update_ranges = { true };
 			bool fwd = { true };
-			// maximum usable freq
-			long long int MAX_UFREQ = { 7200000000 };
 			uint32_t recon_lock_nb_match = { 10 };
 			uint32_t recon_lock_duration = { 50 };
 			uint32_t recon_match_mode = { 0 };
@@ -270,16 +268,16 @@ namespace ui {
 			};
 
 			RSSI rssi {
-				{ 0 * 16, 2 * 16, 240 - 5 * 8 - 1 , 16 },
+				{ 0 * 16, 2 * 16, 240 - 8 * 8 + 4 , 16 },
 			}; 
 
 			ButtonWithEncoder text_cycle {
-				{ 0, 3 * 16, 3 * 8, 16 },  
+				{ 0, 3 * 16, 4 * 8, 16 },  
 					""
 			};
 
 			Text text_max {
-				{ 3 * 8, 3 * 16, 20 * 8 , 16 },  
+				{ 4 * 8, 3 * 16, 240 - 7 * 8 - 4 * 8 , 16 },  
 			};
 
 			Text desc_cycle {
@@ -292,11 +290,11 @@ namespace ui {
 			   }; */
 
 			Text big_display {		//Show frequency in text mode
-				{ 0, 5 * 16 , 21 * 8, 16 },
+				{ 0, 5 * 16 , 23 * 8, 16 },
 			};
 
 			Text freq_stats {		//Show frequency stats in text mode
-				{ 0, 6 * 16 , 21 * 8, 16 },
+				{ 0, 6 * 16 , 23 * 8, 16 },
 			};
 
 			// TIMER: 9999
@@ -311,12 +309,12 @@ namespace ui {
 			};
 
 			Button button_recon_setup {
-				{ 240 - 5 * 8 , 2 * 16 , 5 * 8, 28 },
-					"OPT"
+				{ 240 - 7 * 8 , 2 * 16 , 7 * 8, 28 },
+					"CONFIG"
 			};
 
 			Button button_looking_glass {
-				{ 240 - 5 * 8 , 5 * 16 , 5 * 8, 28 },
+				{ 240 - 7 * 8 , 5 * 16 , 7 * 8, 28 },
 					"GLASS"
 			};
 

firmware/application/apps/ui_scanner.hpp

@@ -88,8 +88,6 @@ public:
 	
 	void focus() override;
 
-	void big_display_freq(rf::Frequency f);
-
 	const Style style_grey {		// scanning
 		.font = font::fixed_8x16,
 		.background = Color::black(),

firmware/application/apps/ui_sd_over_usb.cpp

@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
+ * Copyright (C) 2023 Bernd Herzog
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "ui_sd_over_usb.hpp"
+#include "portapack_shared_memory.hpp"
+
+namespace ui {
+
+SdOverUsbView::SdOverUsbView(NavigationView& nav) : nav_ (nav) {
+	add_children({
+		&labels,
+		&button_run
+	});
+
+	button_run.on_select = [this](Button&) {
+		ui::Painter painter;
+			painter.fill_rectangle(
+			{ 0, 0, portapack::display.width(), portapack::display.height() },
+			ui::Color::black()
+		);
+
+		painter.draw_bitmap(
+			{ portapack::display.width()/2-8, portapack::display.height()/2-8 },
+			bitmap_icon_hackrf,
+			ui::Color::yellow(),
+			ui::Color::black()
+		);
+
+		sdcDisconnect(&SDCD1);
+		sdcStop(&SDCD1);
+
+		portapack::shutdown(true);
+		m4_init(portapack::spi_flash::image_tag_usb_sd, portapack::memory::map::m4_code, false);
+		m0_halt();
+		/* will not return*/
+	};
+}
+
+void SdOverUsbView::focus() {
+	button_run.focus();
+}
+
+} /* namespace ui */

firmware/application/apps/ui_sd_over_usb.hpp

@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
+ * Copyright (C) 2023 Bernd Herzog
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __UI_SD_OVER_USB_H__
+#define __UI_SD_OVER_USB_H__
+
+#include "ui_widget.hpp"
+#include "ui_navigation.hpp"
+#include "string_format.hpp"
+#include "ff.h"
+#include "baseband_api.hpp"
+#include "core_control.hpp"
+
+#include <cstdint>
+
+namespace ui {
+
+class SdOverUsbView : public View {
+public:
+	SdOverUsbView(NavigationView& nav);
+
+	void focus() override;
+
+	std::string title() const override { return "Flash Utility"; };	
+
+private:
+	NavigationView& nav_;
+	
+	Labels labels {
+		{ { 3 * 8, 2 * 16 }, "Click Run to start the", Color::white() },
+		{ { 3 * 8, 3 * 16 }, "USB Mass Storage Mode.", Color::white() },
+		{ { 3 * 8, 5 * 16 }, "It can take up to 20s", Color::white() },
+		{ { 3 * 8, 6 * 16 }, "for the drive to be", Color::white() },
+		{ { 3 * 8, 7 * 16 }, "available.", Color::white() },
+	};
+
+	Button button_run {
+		{ 9 * 8, 15 * 16, 12 * 8, 3 * 16 },
+		"Run" 
+	};		
+};
+
+} /* namespace ui */
+
+#endif /*__UI_SD_OVER_USB_H__*/

firmware/application/apps/ui_settings.cpp

@@ -41,426 +41,539 @@ using namespace portapack;
 #include "freqman.hpp"
 
 namespace ui {
+	SetDateTimeView::SetDateTimeView(
+			NavigationView& nav
+			) {
+		button_save.on_select = [&nav, this](Button&){
+			const auto model = this->form_collect();
+			const rtc::RTC new_datetime {
+				model.year, model.month, model.day,
+					model.hour, model.minute, model.second
+			};
+			rtcSetTime(&RTCD1, &new_datetime);
+			nav.pop();
+		},
 
-SetDateTimeView::SetDateTimeView(
-	NavigationView& nav
-) {
-	button_save.on_select = [&nav, this](Button&){
-		const auto model = this->form_collect();
-		const rtc::RTC new_datetime {
-			model.year, model.month, model.day,
-			model.hour, model.minute, model.second
+			button_cancel.on_select = [&nav](Button&){
+				nav.pop();
+			},
+
+			add_children({
+					&labels,
+					&field_year,
+					&field_month,
+					&field_day,
+					&field_hour,
+					&field_minute,
+					&field_second,
+					&button_save,
+					&button_cancel,
+					});
+
+		rtc::RTC datetime;
+		rtcGetTime(&RTCD1, &datetime);
+		SetDateTimeModel model {
+			datetime.year(),
+				datetime.month(),
+				datetime.day(),
+				datetime.hour(),
+				datetime.minute(),
+				datetime.second()
 		};
-		rtcSetTime(&RTCD1, &new_datetime);
-		nav.pop();
-	},
 
-	button_cancel.on_select = [&nav](Button&){
-		nav.pop();
-	},
-
-	add_children({
-		&labels,
-		&field_year,
-		&field_month,
-		&field_day,
-		&field_hour,
-		&field_minute,
-		&field_second,
-		&button_save,
-		&button_cancel,
-	});
-
-	rtc::RTC datetime;
-	rtcGetTime(&RTCD1, &datetime);
-	SetDateTimeModel model {
-		datetime.year(),
-		datetime.month(),
-		datetime.day(),
-		datetime.hour(),
-		datetime.minute(),
-		datetime.second()
-	};
-
-	form_init(model);
-}
-
-void SetDateTimeView::focus() {
-	button_cancel.focus();
-}
-
-void SetDateTimeView::form_init(const SetDateTimeModel& model) {
-	field_year.set_value(model.year);
-	field_month.set_value(model.month);
-	field_day.set_value(model.day);
-	field_hour.set_value(model.hour);
-	field_minute.set_value(model.minute);
-	field_second.set_value(model.second);
-}
-
-SetDateTimeModel SetDateTimeView::form_collect() {
-	return {
-		.year = static_cast<uint16_t>(field_year.value()),
-		.month = static_cast<uint8_t>(field_month.value()),
-		.day = static_cast<uint8_t>(field_day.value()),
-		.hour = static_cast<uint8_t>(field_hour.value()),
-		.minute = static_cast<uint8_t>(field_minute.value()),
-		.second = static_cast<uint8_t>(field_second.value())
-	};
-}
-
-SetRadioView::SetRadioView(
-	NavigationView& nav
-) {
-	button_cancel.on_select = [&nav](Button&){
-		nav.pop();
-	};
-
-	const auto reference = portapack::clock_manager.get_reference();
-	
-	std::string source_name("---");
-	switch(reference.source) {
-	case ClockManager::ReferenceSource::Xtal:      source_name = "HackRF";    break;
-	case ClockManager::ReferenceSource::PortaPack: source_name = "PortaPack"; break;
-	case ClockManager::ReferenceSource::External:  source_name = "External";  break;
+		form_init(model);
 	}
 
-	value_source.set(source_name);
-	value_source_frequency.set(to_string_dec_uint(reference.frequency / 1000000, 2) + "." + to_string_dec_uint((reference.frequency % 1000000) / 100, 4, '0') + " MHz");
+	void SetDateTimeView::focus() {
+		button_cancel.focus();
+	}
 
-	label_source.set_style(&style_text);
-	value_source.set_style(&style_text);
-	value_source_frequency.set_style(&style_text);
+	void SetDateTimeView::form_init(const SetDateTimeModel& model) {
+		field_year.set_value(model.year);
+		field_month.set_value(model.month);
+		field_day.set_value(model.day);
+		field_hour.set_value(model.hour);
+		field_minute.set_value(model.minute);
+		field_second.set_value(model.second);
+	}
 
-	add_children({
-		&label_source,
-		&value_source,
-		&value_source_frequency,
-	});
+	SetDateTimeModel SetDateTimeView::form_collect() {
+		return {
+			.year = static_cast<uint16_t>(field_year.value()),
+				.month = static_cast<uint8_t>(field_month.value()),
+				.day = static_cast<uint8_t>(field_day.value()),
+				.hour = static_cast<uint8_t>(field_hour.value()),
+				.minute = static_cast<uint8_t>(field_minute.value()),
+				.second = static_cast<uint8_t>(field_second.value())
+		};
+	}
+
+	SetRadioView::SetRadioView(
+			NavigationView& nav
+			) {
+		button_cancel.on_select = [&nav](Button&){
+			nav.pop();
+		};
+
+		const auto reference = portapack::clock_manager.get_reference();
+
+		std::string source_name("---");
+		switch(reference.source) {
+			case ClockManager::ReferenceSource::Xtal:      source_name = "HackRF";    break;
+			case ClockManager::ReferenceSource::PortaPack: source_name = "PortaPack"; break;
+			case ClockManager::ReferenceSource::External:  source_name = "External";  break;
+		}
+
+		value_source.set(source_name);
+		value_source_frequency.set(to_string_dec_uint(reference.frequency / 1000000, 2) + "." + to_string_dec_uint((reference.frequency % 1000000) / 100, 4, '0') + " MHz");
+
+		label_source.set_style(&style_text);
+		value_source.set_style(&style_text);
+		value_source_frequency.set_style(&style_text);
 
-	if( reference.source == ClockManager::ReferenceSource::Xtal ) {
 		add_children({
-			&labels_correction,
-			&field_ppm,
-		});
+				&label_source,
+				&value_source,
+				&value_source_frequency,
+				});
+
+		if( reference.source == ClockManager::ReferenceSource::Xtal ) {
+			add_children({
+					&labels_correction,
+					&field_ppm,
+					});
+		}
+
+		add_children({
+				&check_clkout,
+				&field_clkout_freq,
+				&labels_clkout_khz,
+				&value_freq_step,
+				&labels_bias,
+				&check_bias,
+				&button_save,
+				&button_cancel
+				});
+
+		SetFrequencyCorrectionModel model {
+			static_cast<int8_t>(portapack::persistent_memory::correction_ppb() / 1000) , 0
+		};
+
+		form_init(model);
+
+		check_clkout.set_value(portapack::persistent_memory::clkout_enabled());
+		check_clkout.on_select = [this](Checkbox&, bool v) {
+			clock_manager.enable_clock_output(v);
+			portapack::persistent_memory::set_clkout_enabled(v);
+			StatusRefreshMessage message { };
+			EventDispatcher::send_message(message);
+		};
+
+		field_clkout_freq.set_value(portapack::persistent_memory::clkout_freq());
+		value_freq_step.set_style(&style_text);
+
+		field_clkout_freq.on_select = [this](NumberField&) {
+			freq_step_khz++;
+			if(freq_step_khz > 3) {
+				freq_step_khz = 0;
+			}
+			switch(freq_step_khz) {
+				case 0:
+					value_freq_step.set("   |");
+					break;
+				case 1:
+					value_freq_step.set("  | ");
+					break;
+				case 2:
+					value_freq_step.set(" |  ");
+					break;
+				case 3:
+					value_freq_step.set("|   ");
+					break;
+			}
+			field_clkout_freq.set_step(pow(10, freq_step_khz));
+		};
+
+		check_bias.set_value(portapack::get_antenna_bias());
+		check_bias.on_select = [this](Checkbox&, bool v) {
+			portapack::set_antenna_bias(v);
+			StatusRefreshMessage message { };
+			EventDispatcher::send_message(message);
+		};
+
+		button_save.on_select = [this, &nav](Button&){
+			const auto model = this->form_collect();
+			portapack::persistent_memory::set_correction_ppb(model.ppm * 1000);
+			portapack::persistent_memory::set_clkout_freq(model.freq);
+			clock_manager.enable_clock_output(portapack::persistent_memory::clkout_enabled());
+			nav.pop();
+		};
 	}
 
-	add_children({
-		&check_clkout,
-		&field_clkout_freq,
-		&labels_clkout_khz,
-		&value_freq_step,
-		&labels_bias,
-		&check_bias,
-		&button_save,
-		&button_cancel
-	});
+	void SetRadioView::focus() {
+		button_save.focus();
+	}
 
-	SetFrequencyCorrectionModel model {
-		static_cast<int8_t>(portapack::persistent_memory::correction_ppb() / 1000) , 0
-	};
+	void SetRadioView::form_init(const SetFrequencyCorrectionModel& model) {
+		field_ppm.set_value(model.ppm);
+	}
 
-	form_init(model);
-
-	check_clkout.set_value(portapack::persistent_memory::clkout_enabled());
-	check_clkout.on_select = [this](Checkbox&, bool v) {
-		clock_manager.enable_clock_output(v);
-		portapack::persistent_memory::set_clkout_enabled(v);
-		StatusRefreshMessage message { };
-		EventDispatcher::send_message(message);
-	};
-
-   	field_clkout_freq.set_value(portapack::persistent_memory::clkout_freq());
-	value_freq_step.set_style(&style_text);
-
-	field_clkout_freq.on_select = [this](NumberField&) {
-		freq_step_khz++;
-		if(freq_step_khz > 3) {
-			freq_step_khz = 0;
-		}
-		switch(freq_step_khz) {
-			case 0:
-				value_freq_step.set("   |");
-				break;
-			case 1:
-				value_freq_step.set("  | ");
-				break;
-			case 2:
-				value_freq_step.set(" |  ");
-				break;
-			case 3:
-				value_freq_step.set("|   ");
-				break;
-		}
-		field_clkout_freq.set_step(pow(10, freq_step_khz));
-	};
-
-	check_bias.set_value(portapack::get_antenna_bias());
-	check_bias.on_select = [this](Checkbox&, bool v) {
-		portapack::set_antenna_bias(v);
-		StatusRefreshMessage message { };
-		EventDispatcher::send_message(message);
-	};
-
-	button_save.on_select = [this, &nav](Button&){
-		const auto model = this->form_collect();
-		portapack::persistent_memory::set_correction_ppb(model.ppm * 1000);
-		portapack::persistent_memory::set_clkout_freq(model.freq);
-		clock_manager.enable_clock_output(portapack::persistent_memory::clkout_enabled());
-		nav.pop();
-	};
-}
-
-void SetRadioView::focus() {
-	button_save.focus();
-}
-
-void SetRadioView::form_init(const SetFrequencyCorrectionModel& model) {
-	field_ppm.set_value(model.ppm);
-}
-
-SetFrequencyCorrectionModel SetRadioView::form_collect() {
-	return {
-		.ppm = static_cast<int8_t>(field_ppm.value()),
-		.freq = static_cast<uint32_t>(field_clkout_freq.value()),
-	};
-}
-
-
-SetUIView::SetUIView(NavigationView& nav) {
-	add_children({
-		&checkbox_disable_touchscreen,
-		&checkbox_speaker,
-		&checkbox_bloff,
-		&options_bloff,
-		&checkbox_showsplash,
-		&checkbox_showclock,
-		&options_clockformat,
-		&checkbox_guireturnflag,
-		&button_save,
-		&button_cancel
-	});
-	
-	checkbox_disable_touchscreen.set_value(persistent_memory::disable_touchscreen());
-	checkbox_speaker.set_value(persistent_memory::config_speaker());
-	checkbox_showsplash.set_value(persistent_memory::config_splash());
-	checkbox_showclock.set_value(!persistent_memory::hide_clock());
-	checkbox_guireturnflag.set_value(persistent_memory::show_gui_return_icon());
-	
-	const auto backlight_config = persistent_memory::config_backlight_timer();
-	checkbox_bloff.set_value(backlight_config.timeout_enabled());
-	options_bloff.set_by_value(backlight_config.timeout_enum());
-
-	if (persistent_memory::clock_with_date()) {
-		options_clockformat.set_selected_index(1);
-	} else {
-		options_clockformat.set_selected_index(0);
+	SetFrequencyCorrectionModel SetRadioView::form_collect() {
+		return {
+			.ppm = static_cast<int8_t>(field_ppm.value()),
+				.freq = static_cast<uint32_t>(field_clkout_freq.value()),
+		};
 	}
 
 
-	button_save.on_select = [&nav, this](Button&) {
-		persistent_memory::set_config_backlight_timer({
-			(persistent_memory::backlight_timeout_t)options_bloff.selected_index_value(),
-			checkbox_bloff.value()
-		});
-				
-		if (checkbox_showclock.value()){
-		    if (options_clockformat.selected_index() == 1)
-			    persistent_memory::set_clock_with_date(true);    
-     		else
-			    persistent_memory::set_clock_with_date(false);		
+	SetUIView::SetUIView(NavigationView& nav) {
+		add_children({
+				&checkbox_disable_touchscreen,
+				&checkbox_speaker,
+				&checkbox_bloff,
+				&options_bloff,
+				&checkbox_showsplash,
+				&checkbox_showclock,
+				&options_clockformat,
+				&checkbox_guireturnflag,
+				&button_save,
+				&button_cancel
+				});
+
+		checkbox_disable_touchscreen.set_value(persistent_memory::disable_touchscreen());
+		checkbox_speaker.set_value(persistent_memory::config_speaker());
+		checkbox_showsplash.set_value(persistent_memory::config_splash());
+		checkbox_showclock.set_value(!persistent_memory::hide_clock());
+		checkbox_guireturnflag.set_value(persistent_memory::show_gui_return_icon());
+
+		const auto backlight_config = persistent_memory::config_backlight_timer();
+		checkbox_bloff.set_value(backlight_config.timeout_enabled());
+		options_bloff.set_by_value(backlight_config.timeout_enum());
+
+		if (persistent_memory::clock_with_date()) {
+			options_clockformat.set_selected_index(1);
+		} else {
+			options_clockformat.set_selected_index(0);
 		}
 
-		if (checkbox_speaker.value())  audio::output::speaker_mute();		//Just mute audio if speaker is disabled
-		persistent_memory::set_config_speaker(checkbox_speaker.value());	//Store Speaker status
-        	StatusRefreshMessage message { };					//Refresh status bar with/out speaker
-        	EventDispatcher::send_message(message);
-	
-		persistent_memory::set_config_splash(checkbox_showsplash.value());
-		persistent_memory::set_clock_hidden(!checkbox_showclock.value());
-		persistent_memory::set_gui_return_icon(checkbox_guireturnflag.value());
-		persistent_memory::set_disable_touchscreen(checkbox_disable_touchscreen.value());
-		nav.pop();
-	};
-	button_cancel.on_select = [&nav, this](Button&) {
-		nav.pop();
-	};
-}
 
-void SetUIView::focus() {
-	button_save.focus();
-}
+		button_save.on_select = [&nav, this](Button&) {
+			persistent_memory::set_config_backlight_timer({
+					(persistent_memory::backlight_timeout_t)options_bloff.selected_index_value(),
+					checkbox_bloff.value()
+					});
+
+			if (checkbox_showclock.value()){
+				if (options_clockformat.selected_index() == 1)
+					persistent_memory::set_clock_with_date(true);    
+				else
+					persistent_memory::set_clock_with_date(false);		
+			}
+
+			if (checkbox_speaker.value())  audio::output::speaker_mute();		//Just mute audio if speaker is disabled
+			persistent_memory::set_config_speaker(checkbox_speaker.value());	//Store Speaker status
+			StatusRefreshMessage message { };					//Refresh status bar with/out speaker
+			EventDispatcher::send_message(message);
+
+			persistent_memory::set_config_splash(checkbox_showsplash.value());
+			persistent_memory::set_clock_hidden(!checkbox_showclock.value());
+			persistent_memory::set_gui_return_icon(checkbox_guireturnflag.value());
+			persistent_memory::set_disable_touchscreen(checkbox_disable_touchscreen.value());
+			nav.pop();
+		};
+		button_cancel.on_select = [&nav, this](Button&) {
+			nav.pop();
+		};
+	}
+
+	void SetUIView::focus() {
+		button_save.focus();
+	}
 
 
-// ---------------------------------------------------------
-// Appl. Settings
-// ---------------------------------------------------------
-SetAppSettingsView::SetAppSettingsView(NavigationView& nav) {
-	add_children({
-		&checkbox_load_app_settings,
-		&checkbox_save_app_settings,
-		&button_save,
-		&button_cancel
-	});
-	
-	checkbox_load_app_settings.set_value(persistent_memory::load_app_settings());
-	checkbox_save_app_settings.set_value(persistent_memory::save_app_settings());
+	// ---------------------------------------------------------
+	// Appl. Settings
+	// ---------------------------------------------------------
+	SetAppSettingsView::SetAppSettingsView(NavigationView& nav) {
+		add_children({
+				&checkbox_load_app_settings,
+				&checkbox_save_app_settings,
+				&button_save,
+				&button_cancel
+				});
 
+		checkbox_load_app_settings.set_value(persistent_memory::load_app_settings());
+		checkbox_save_app_settings.set_value(persistent_memory::save_app_settings());
 
-	button_save.on_select = [&nav, this](Button&) {
-		persistent_memory::set_load_app_settings(checkbox_load_app_settings.value());
-		persistent_memory::set_save_app_settings(checkbox_save_app_settings.value());
-		nav.pop();
-	};
-	button_cancel.on_select = [&nav, this](Button&) {
-		nav.pop();
-	};
-}
+		button_save.on_select = [&nav, this](Button&) {
+			persistent_memory::set_load_app_settings(checkbox_load_app_settings.value());
+			persistent_memory::set_save_app_settings(checkbox_save_app_settings.value());
+			nav.pop();
+		};
+		button_cancel.on_select = [&nav, this](Button&) {
+			nav.pop();
+		};
+	}
 
-void SetAppSettingsView::focus() {
-	button_save.focus();
-}
+	void SetAppSettingsView::focus() {
+		button_save.focus();
+	}
 
-// ---------------------------------------------------------
-// Converter Settings
-// ---------------------------------------------------------
-SetConverterSettingsView::SetConverterSettingsView(NavigationView& nav) {
-	add_children({
-		&check_show_converter,
-		&check_converter,
-		&converter_mode,
-		&button_converter_freq,
-		&button_save,
-		&button_cancel
-	});
+	// ---------------------------------------------------------
+	// Converter Settings
+	// ---------------------------------------------------------
+	SetConverterSettingsView::SetConverterSettingsView(NavigationView& nav) {
+		add_children({
+				&check_show_converter,
+				&check_converter,
+				&converter_mode,
+				&button_converter_freq,
+				&button_save,
+				&button_cancel
+				});
 
-	check_show_converter.set_value(!portapack::persistent_memory::config_hide_converter());
-	check_show_converter.on_select = [this](Checkbox&, bool v) {
-        portapack::persistent_memory::set_config_hide_converter(!v);
-        if( !v )
-        {
-		    check_converter.set_value(false);
-        }
-        // Retune to take converter change in account
-	    receiver_model.set_tuning_frequency( portapack::persistent_memory::tuned_frequency() );	
-        //Refresh status bar with/out converter
-        StatusRefreshMessage message { };				
-       	EventDispatcher::send_message(message);
-	};
+		check_show_converter.set_value(!portapack::persistent_memory::config_hide_converter());
+		check_show_converter.on_select = [this](Checkbox&, bool v) {
+			portapack::persistent_memory::set_config_hide_converter(!v);
+			if( !v )
+			{
+				check_converter.set_value(false);
+			}
+			// Retune to take converter change in account
+			receiver_model.set_tuning_frequency( portapack::persistent_memory::tuned_frequency() );	
+			//Refresh status bar with/out converter
+			StatusRefreshMessage message { };				
+			EventDispatcher::send_message(message);
+		};
 
-	check_converter.set_value(portapack::persistent_memory::config_converter());
-	check_converter.on_select = [this](Checkbox&, bool v) {
-        if( v )
-        {
-            check_show_converter.set_value(true);
-            portapack::persistent_memory::set_config_hide_converter(false);
-        }
-        portapack::persistent_memory::set_config_converter(v);
-        // Retune to take converter change in account
-	    receiver_model.set_tuning_frequency( portapack::persistent_memory::tuned_frequency() );	
-        //Refresh status bar with/out converter
-        StatusRefreshMessage message { };				
-       	EventDispatcher::send_message(message);
-	};
+		check_converter.set_value(portapack::persistent_memory::config_converter());
+		check_converter.on_select = [this](Checkbox&, bool v) {
+			if( v )
+			{
+				check_show_converter.set_value(true);
+				portapack::persistent_memory::set_config_hide_converter(false);
+			}
+			portapack::persistent_memory::set_config_converter(v);
+			// Retune to take converter change in account
+			receiver_model.set_tuning_frequency( portapack::persistent_memory::tuned_frequency() );	
+			//Refresh status bar with/out converter
+			StatusRefreshMessage message { };				
+			EventDispatcher::send_message(message);
+		};
 
-	converter_mode.set_by_value( portapack::persistent_memory::config_updown_converter() );
-	converter_mode.on_change = [this](size_t, OptionsField::value_t v) {
-		portapack::persistent_memory::set_config_updown_converter( v );
-		//Refresh status bar with icon up or down
-        StatusRefreshMessage message { };				
-       	EventDispatcher::send_message(message);
-	};
-				
-    button_converter_freq.set_text( to_string_short_freq( portapack::persistent_memory::config_converter_freq() ) + "MHz");
-    button_converter_freq.on_select = [this, &nav](Button& button) {
-            auto new_view = nav.push<FrequencyKeypadView>(portapack::persistent_memory::config_converter_freq() );
-            new_view->on_changed = [this, &button](rf::Frequency f) {
-                portapack::persistent_memory::set_config_converter_freq( f );
-                // Retune to take converter change in account
-        	    receiver_model.set_tuning_frequency( portapack::persistent_memory::tuned_frequency() );	
-                button_converter_freq.set_text( "<" + to_string_short_freq( f ) + " MHz>" );
-            };
-        };
-	
-	button_save.on_select = [&nav, this](Button&) {
-		nav.pop();
-	};
-	button_cancel.on_select = [&nav, this](Button&) {
-		nav.pop();
-	};
-}
+		converter_mode.set_by_value( portapack::persistent_memory::config_updown_converter() );
+		converter_mode.on_change = [this](size_t, OptionsField::value_t v) {
+			portapack::persistent_memory::set_config_updown_converter( v );
+			//Refresh status bar with icon up or down
+			StatusRefreshMessage message { };				
+			EventDispatcher::send_message(message);
+		};
 
-void SetConverterSettingsView::focus() {
-	button_save.focus();
-}
+		button_converter_freq.set_text( to_string_short_freq( portapack::persistent_memory::config_converter_freq() ) + "MHz");
+		button_converter_freq.on_select = [this, &nav](Button& button) {
+			auto new_view = nav.push<FrequencyKeypadView>(portapack::persistent_memory::config_converter_freq() );
+			new_view->on_changed = [this, &button](rf::Frequency f) {
+				portapack::persistent_memory::set_config_converter_freq( f );
+				// Retune to take converter change in account
+				receiver_model.set_tuning_frequency( portapack::persistent_memory::tuned_frequency() );	
+				button_converter_freq.set_text( "<" + to_string_short_freq( f ) + " MHz>" );
+			};
+		};
 
-SetAudioView::SetAudioView(NavigationView& nav) {
-	add_children({
-		&labels,
-		&field_tone_mix,
-		&button_save,
-		&button_cancel
-	});
+		button_save.on_select = [&nav, this](Button&) {
+			nav.pop();
+		};
+		button_cancel.on_select = [&nav, this](Button&) {
+			nav.pop();
+		};
+	}
 
-	field_tone_mix.set_value(persistent_memory::tone_mix());
-	
-	button_save.on_select = [&nav, this](Button&) {
-		persistent_memory::set_tone_mix(field_tone_mix.value());
-		nav.pop();
-	};
+	void SetConverterSettingsView::focus() {
+		button_save.focus();
+	}
 
-	button_cancel.on_select = [&nav, this](Button&) {
-		nav.pop();
-	};
-}
+	// ---------------------------------------------------------
+	// Persistent Memory Settings
+	// ---------------------------------------------------------
+	SetPersistentMemoryView::SetPersistentMemoryView(NavigationView& nav) {
+		add_children({
+				&text_pmem_about,
+				&text_pmem_informations,
+				&text_pmem_status,
+				&check_load_mem_at_startup,
+				&button_save_mem_to_file,
+				&button_load_mem_from_file,
+  				&button_load_mem_defaults,
+				&button_return
+				});
 
-void SetAudioView::focus() {
-	button_save.focus();
-}
+		bool load_mem_at_startup = false ;
+		File pmem_flag_file_handle ;
 
-SetQRCodeView::SetQRCodeView(NavigationView& nav) {
-	add_children({
-		&checkbox_bigger_qr,
-		&button_save,
-		&button_cancel
-	});
+		std::string folder = "SETTINGS";
+		make_new_directory(folder);
 
-	checkbox_bigger_qr.set_value(persistent_memory::show_bigger_qr_code());
-	
-	button_save.on_select = [&nav, this](Button&) {
-		persistent_memory::set_show_bigger_qr_code(checkbox_bigger_qr.value());
-		nav.pop();
-	};
+		std::string pmem_flag_file = "/SETTINGS/PMEM_FILEFLAG" ;
+		auto result = pmem_flag_file_handle.open(pmem_flag_file);	
+		if(!result.is_valid()) 
+		{
+			load_mem_at_startup = true ;
+		}
+		check_load_mem_at_startup.set_value(load_mem_at_startup);
+		check_load_mem_at_startup.on_select = [this](Checkbox&, bool v) {
+			File pmem_flag_file_handle ;
+			std::string pmem_flag_file = "/SETTINGS/PMEM_FILEFLAG" ;
+			if( v )
+			{
+				auto result = pmem_flag_file_handle.open(pmem_flag_file);	
+				if(result.is_valid()) 
+				{
+					auto result = pmem_flag_file_handle.create(pmem_flag_file); //third: create if it is not there
+					if( !result.is_valid() )
+					{
+						text_pmem_status.set("pmem flag file created");
+					}
+					else
+					{
+						text_pmem_status.set("!err. creating pmem flagfile!");
+					}
+				}
+				else
+				{
+					text_pmem_status.set("pmem flag already present");
+				}
+			}
+			else
+			{
+				auto result = delete_file( pmem_flag_file );
+				if( result != 0 )
+				{
+					text_pmem_status.set("!err. deleting pmem flagfile!");
+				}
+				else
+				{
+					text_pmem_status.set("pmem flag file deleted");
+				}
+			}
+		};
 
-	button_cancel.on_select = [&nav, this](Button&) {
-		nav.pop();
-	};
+		button_save_mem_to_file.on_select = [&nav, this](Button&) {
+			if( !portapack::persistent_memory::save_persistent_settings_to_file("SETTINGS/pmem_settings") )
+			{
+				text_pmem_status.set("!problem saving settings!");
+			}
+			else
+			{
+				text_pmem_status.set("settings saved");
+			}
+		};
 
-}
+		button_load_mem_from_file.on_select = [&nav, this](Button&) {
+			if( !portapack::persistent_memory::load_persistent_settings_from_file("SETTINGS/pmem_settings") )
+			{
+				text_pmem_status.set("!problem loading settings!");
+			}
+			else
+			{
+				text_pmem_status.set("settings loaded");
+				//Refresh status bar with icon up or down
+				StatusRefreshMessage message { };				
+				EventDispatcher::send_message(message);
+			}
+		};
 
-void SetQRCodeView::focus() {
-	button_save.focus();
-}
+		button_load_mem_defaults.on_select = [&nav, this](Button&) {
+        	nav.push<ModalMessageView>(
+			"Warning!",
+			"This will reset the p.mem\nand set the default settings",
+			YESNO,
+			[this](bool choice) {
+				if (choice) {
+ 					portapack::persistent_memory::cache::defaults();
+				}
+			} );
+		};
 
-// ---------------------------------------------------------
-// Settings main menu
-// ---------------------------------------------------------
-SettingsMenuView::SettingsMenuView(NavigationView& nav) {
-    if( portapack::persistent_memory::show_gui_return_icon() )
-    {
-        add_items( { { "..", 		ui::Color::light_grey(),&bitmap_icon_previous,	[&nav](){ nav.pop(); } } } );
-    }
-	add_items({
-		{ "Audio",          ui::Color::dark_cyan(), &bitmap_icon_speaker,          [&nav](){ nav.push<SetAudioView>(); } },
-		{ "Radio",          ui::Color::dark_cyan(), &bitmap_icon_options_radio,    [&nav](){ nav.push<SetRadioView>(); } },
-		{ "User Interface", ui::Color::dark_cyan(), &bitmap_icon_options_ui,       [&nav](){ nav.push<SetUIView>(); } },
-		{ "Date/Time",      ui::Color::dark_cyan(), &bitmap_icon_options_datetime, [&nav](){ nav.push<SetDateTimeView>(); } },
-		{ "Calibration",    ui::Color::dark_cyan(), &bitmap_icon_options_touch,    [&nav](){ nav.push<TouchCalibrationView>(); } },
-		{ "App Settings",   ui::Color::dark_cyan(), &bitmap_icon_setup,            [&nav](){ nav.push<SetAppSettingsView>(); } },
-		{ "Converter",      ui::Color::dark_cyan(), &bitmap_icon_options_radio,    [&nav](){ nav.push<SetConverterSettingsView>(); } },
-		{ "QR Code",        ui::Color::dark_cyan(), &bitmap_icon_qr_code,          [&nav](){ nav.push<SetQRCodeView>(); } }
-	});
-	set_max_rows(2); // allow wider buttons
-}
+		button_return.on_select = [&nav, this](Button&) {
+			nav.pop();
+		};
+	}
+
+	void SetPersistentMemoryView::focus() {
+		button_return.focus();
+	}
+
+	//
+	// Audio settings
+	//
+	SetAudioView::SetAudioView(NavigationView& nav) {
+		add_children({
+				&labels,
+				&field_tone_mix,
+				&button_save,
+				&button_cancel
+				});
+
+		field_tone_mix.set_value(persistent_memory::tone_mix());
+
+		button_save.on_select = [&nav, this](Button&) {
+			persistent_memory::set_tone_mix(field_tone_mix.value());
+			nav.pop();
+		};
+
+		button_cancel.on_select = [&nav, this](Button&) {
+			nav.pop();
+		};
+	}
+
+	void SetAudioView::focus() {
+		button_save.focus();
+	}
+
+	SetQRCodeView::SetQRCodeView(NavigationView& nav) {
+		add_children({
+				&checkbox_bigger_qr,
+				&button_save,
+				&button_cancel
+				});
+
+		checkbox_bigger_qr.set_value(persistent_memory::show_bigger_qr_code());
+
+		button_save.on_select = [&nav, this](Button&) {
+			persistent_memory::set_show_bigger_qr_code(checkbox_bigger_qr.value());
+			nav.pop();
+		};
+
+		button_cancel.on_select = [&nav, this](Button&) {
+			nav.pop();
+		};
+
+	}
+
+	void SetQRCodeView::focus() {
+		button_save.focus();
+	}
+
+	// ---------------------------------------------------------
+	// Settings main menu
+	// ---------------------------------------------------------
+	SettingsMenuView::SettingsMenuView(NavigationView& nav) {
+		if( portapack::persistent_memory::show_gui_return_icon() )
+		{
+			add_items( { { "..", 		ui::Color::light_grey(),&bitmap_icon_previous,	[&nav](){ nav.pop(); } } } );
+		}
+		add_items({
+				{ "Audio",          ui::Color::dark_cyan(), &bitmap_icon_speaker,          [&nav](){ nav.push<SetAudioView>(); } },
+				{ "Radio",          ui::Color::dark_cyan(), &bitmap_icon_options_radio,    [&nav](){ nav.push<SetRadioView>(); } },
+				{ "User Interface", ui::Color::dark_cyan(), &bitmap_icon_options_ui,       [&nav](){ nav.push<SetUIView>(); } },
+				{ "Date/Time",      ui::Color::dark_cyan(), &bitmap_icon_options_datetime, [&nav](){ nav.push<SetDateTimeView>(); } },
+				{ "Calibration",    ui::Color::dark_cyan(), &bitmap_icon_options_touch,    [&nav](){ nav.push<TouchCalibrationView>(); } },
+				{ "App Settings",   ui::Color::dark_cyan(), &bitmap_icon_setup,            [&nav](){ nav.push<SetAppSettingsView>(); } },
+				{ "Converter",      ui::Color::dark_cyan(), &bitmap_icon_options_radio,    [&nav](){ nav.push<SetConverterSettingsView>(); } },
+				{ "QR Code",        ui::Color::dark_cyan(), &bitmap_icon_qr_code,          [&nav](){ nav.push<SetQRCodeView>(); } },
+				{ "P.Memory Mgmt",      ui::Color::dark_cyan(), &bitmap_icon_memory,       [&nav](){ nav.push<SetPersistentMemoryView>(); } },
+				});
+		set_max_rows(2); // allow wider buttons
+	}
 
 } /* namespace ui */

firmware/application/apps/ui_settings.hpp

@@ -314,7 +314,7 @@ private:
 		25,
 		"Save app settings"
 	};
-	
+
 	Button button_save {
 		{ 2 * 8, 16 * 16, 12 * 8, 32 },
 		"Save"
@@ -432,6 +432,59 @@ private:
 	};
 };
 
+class SetPersistentMemoryView : public View {
+public:
+	SetPersistentMemoryView(NavigationView& nav);
+	
+	void focus() override;
+	
+	std::string title() const override { return "P.Mem Mgmt"; };
+	
+private:
+
+	Text text_pmem_about {
+		{ 0, 1 * 16, 240 , 16 },
+		"PersistentMemory from/to SD"
+	};
+
+	Text text_pmem_informations {
+		{ 0, 2 * 16, 240 , 16 },
+		"use: when no/dead coin bat."
+	};
+
+	Text text_pmem_status {
+		{ 0, 3 * 16, 240 , 16 },
+		""
+	};
+
+    Checkbox check_load_mem_at_startup {
+		{ 18, 6 * 16},
+		19,
+		"load from sd at startup"
+	};
+
+	Button button_save_mem_to_file {
+		{ 0, 8 * 16, 240, 32 },
+		"save p.mem to sdcard"
+	};
+	
+	Button button_load_mem_from_file {
+		{ 0, 10 * 16 + 4 , 240, 32 },
+		"load p.mem from sdcard"
+	};
+
+    Button button_load_mem_defaults {
+		{ 0, 12 * 16 + 8 , 240, 32 },
+		"! reset p.mem, load defaults !"
+	};
+
+	Button button_return {
+		{ 16 * 8, 16 * 16, 12 * 8, 32 },
+		"Return",
+	};
+};
+
+
 class SettingsMenuView : public BtnGridView {
 public:
 	SettingsMenuView(NavigationView& nav);

firmware/application/apps/ui_siggen.hpp

@@ -49,26 +49,26 @@ private:
 	void on_tx_progress(const uint32_t progress, const bool done);
 	
 	const std::string shape_strings[7] = {
-		"CW",
-		"Sine",
-		"Triangle",
-		"Saw up",
-		"Saw down",
-		"Square",
-		"Noise"
+		"CW-just carrier",
+		"Sine signal    ",
+		"Triangle signal",
+		"Saw up signal  ",
+		"Saw down signal",
+		"Square signal  ",
+		"Noise signal   "	// using 16 bits LFSR register, 16 order polynomial feedback.
 	};
 	
 	bool auto_update { false };
 	
 	Labels labels {
-		{ { 6 * 8, 4 + 10 }, "Shape:", Color::light_grey() },
-		{ { 7 * 8, 7 * 8 }, "Tone:      Hz", Color::light_grey() },
+		{ { 3 * 8, 4 + 10 }, "Shape:", Color::light_grey() },
+		{ { 6 * 8, 7 * 8 }, "Tone:      Hz", Color::light_grey() },
 		{ { 22 * 8, 15 * 8 + 4 }, "s.", Color::light_grey() },
 		{ { 8 * 8, 20 * 8 }, "Modulation: FM", Color::light_grey() }
 	};
 	
 	ImageOptionsField options_shape {
-		{ 13 * 8, 4, 32, 32 },
+		{ 10 * 8, 4, 32, 32 },
 		Color::white(),
 		Color::black(),
 		{
@@ -83,7 +83,7 @@ private:
 	};
 	
 	Text text_shape {
-		{ 18 * 8, 4 + 10, 8 * 8, 16 },
+		{ 15 * 8, 4 + 10, 8 * 8, 16 },
 		""
 	};
 	
@@ -94,12 +94,12 @@ private:
 	};
 	
 	Button button_update {
-		{ 6 * 8, 10 * 8, 8 * 8, 3 * 8 },
+		{ 5 * 8, 10 * 8, 8 * 8, 3 * 8 },
 		"Update"
 	};
 	
 	Checkbox checkbox_auto {
-		{ 16 * 8, 10 * 8 },
+		{ 15 * 8, 10 * 8 },
 		4,
 		"Auto"
 	};

firmware/application/core_control.cpp

@@ -1,5 +1,6 @@
 /*
  * Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
+ * Copyright (C) 2023 Bernd Herzog
  *
  * This file is part of PortaPack.
  *
@@ -28,22 +29,20 @@ using namespace lpc43xx;
 
 #include "message.hpp"
 #include "baseband_api.hpp"
+#include "lz4.h"
 
 #include <cstring>
 
-/* TODO: OK, this is cool, but how do I put the M4 to sleep so I can switch to
- * a different image? Other than asking the old image to sleep while the M0
- * makes changes?
- *
- * I suppose I could force M4MEMMAP to an invalid memory reason which would
- * cause an exception and effectively halt the M4. But that feels gross.
- */
 void m4_init(const portapack::spi_flash::image_tag_t image_tag, const portapack::memory::region_t to, const bool full_reset) {
 	const portapack::spi_flash::chunk_t* chunk = reinterpret_cast<const portapack::spi_flash::chunk_t*>(portapack::spi_flash::images.base());
 	while(chunk->tag) {
-		if( chunk->tag == image_tag ) {
-			/* Initialize M4 code RAM */
-			std::memcpy(reinterpret_cast<void*>(to.base()), &chunk->data[0], chunk->length);
+		if(chunk->tag == image_tag) {
+
+			const void *src = &chunk->data[0];
+			void *dst = reinterpret_cast<void*>(to.base());
+
+			/* extract and initialize M4 code RAM */
+			unlz4_len(src, dst, chunk->compressed_data_size);
 
 			/* M4 core is assumed to be sleeping with interrupts off, so we can mess
 			 * with its address space and RAM without concern.

firmware/application/event_m0.cpp

@@ -43,6 +43,7 @@ using namespace lpc43xx;
 #include <array>
 
 #include "ui_font_fixed_8x16.hpp"
+#include "ui_navigation.hpp"
 
 extern "C" {
 
@@ -262,6 +263,8 @@ void EventDispatcher::on_touch_event(ui::TouchEvent event) {
 void EventDispatcher::handle_lcd_frame_sync() {
 	DisplayFrameSyncMessage message;
 	message_map.send(&message);
+
+	static_cast<ui::SystemView *>(top_widget)->paint_overlay();
 	painter.paint_widget_tree(top_widget);
 
 	portapack::backlight()->on();
@@ -304,7 +307,12 @@ void EventDispatcher::handle_switches() {
 		if( switches_state[i] ) {
 			const auto event = static_cast<ui::KeyEvent>(i);
 			if( !event_bubble_key(event) ) {
-				context.focus_manager().update(top_widget, event);
+				if (switches_state[(size_t)ui::KeyEvent::Dfu]) {
+					static_cast<ui::SystemView *>(top_widget)->toggle_overlay();
+				}
+				else {
+					context.focus_manager().update(top_widget, event);
+				}
 			}
 
 			in_key_event = true;

firmware/application/file.cpp

@@ -250,6 +250,15 @@ std::string filesystem_error::what() const {
 	}
 }
 
+path path::parent_path() const {
+	const auto index = _s.find_last_of(preferred_separator);
+	if( index == _s.npos ) {
+		return { }; // NB: Deviation from STL.
+	} else {
+		return _s.substr(0, index);
+	}
+}
+
 path path::extension() const {
 	const auto t = filename().native();
 	const auto index = t.find_last_of(u'.');
@@ -296,6 +305,14 @@ path& path::replace_extension(const path& replacement) {
 	return *this;
 }
 
+bool operator==(const path& lhs, const path& rhs) {
+	return lhs.native() == rhs.native();
+}
+
+bool operator!=(const path& lhs, const path& rhs) {
+	return !(lhs == rhs);
+}
+
 bool operator<(const path& lhs, const path& rhs) {
 	return lhs.native() < rhs.native();
 }
@@ -304,6 +321,18 @@ bool operator>(const path& lhs, const path& rhs) {
 	return lhs.native() > rhs.native();
 }
 
+path operator+(const path& lhs, const path& rhs) {
+	path result = lhs;
+	result += rhs;
+	return result;
+}
+
+path operator/(const path& lhs, const path& rhs) {
+	path result = lhs;
+	result /= rhs;
+	return result;
+}
+
 directory_iterator::directory_iterator(
 	std::filesystem::path path,
 	std::filesystem::path wild
@@ -311,7 +340,7 @@ directory_iterator::directory_iterator(
 {
 	impl = std::make_shared<Impl>();
 	const auto result = f_findfirst(&impl->dir, &impl->filinfo, reinterpret_cast<const TCHAR*>(path.c_str()), reinterpret_cast<const TCHAR*>(pattern.c_str()));
-	if( result != FR_OK ) {
+	if( result != FR_OK || impl->filinfo.fname[0] == (TCHAR)'\0') {
 		impl.reset();
 		// TODO: Throw exception if/when I enable exceptions...
 	}
@@ -333,6 +362,20 @@ bool is_regular_file(const file_status s) {
 	return !(s & AM_DIR);
 }
 
+bool file_exists(const path& file_path) {
+	FILINFO filinfo;
+	auto fr = f_stat(reinterpret_cast<const TCHAR*>(file_path.c_str()), &filinfo);
+	
+	return fr == FR_OK;
+}
+
+bool is_directory(const path& file_path) {
+	FILINFO filinfo;
+	auto fr = f_stat(reinterpret_cast<const TCHAR*>(file_path.c_str()), &filinfo);
+	
+	return fr == FR_OK && is_directory(static_cast<file_status>(filinfo.fattrib));
+}
+
 space_info space(const path& p) {
 	DWORD free_clusters { 0 };
 	FATFS* fs;

firmware/application/file.hpp

@@ -123,6 +123,7 @@ struct path {
 		return *this;
 	}
 
+	path parent_path() const;
 	path extension() const;
 	path filename() const;
 	path stem() const;
@@ -151,14 +152,25 @@ struct path {
 		return *this;
 	}
 
+	path& operator/=(const path& p) {
+		if (_s.back() != preferred_separator)
+			_s += preferred_separator;
+		_s += p._s;
+		return *this;
+	}
+
 	path& replace_extension(const path& replacement = path());
 
 private:
 	string_type _s;
 };
 
+bool operator==(const path& lhs, const path& rhs);
+bool operator!=(const path& lhs, const path& rhs);
 bool operator<(const path& lhs, const path& rhs);
 bool operator>(const path& lhs, const path& rhs);
+path operator+(const path& lhs, const path& rhs);
+path operator/(const path& lhs, const path& rhs);
 
 using file_status = BYTE;
 
@@ -227,6 +239,8 @@ inline bool operator!=(const directory_iterator& lhs, const directory_iterator&
 
 bool is_directory(const file_status s);
 bool is_regular_file(const file_status s);
+bool file_exists(const path& file_path);
+bool is_directory(const path& file_path);
 
 space_info space(const path& p);
 
@@ -245,6 +259,8 @@ uint32_t make_new_directory(const std::filesystem::path& dir_path);
 
 std::vector<std::filesystem::path> scan_root_files(const std::filesystem::path& directory, const std::filesystem::path& extension);
 std::vector<std::filesystem::path> scan_root_directories(const std::filesystem::path& directory);
+
+/* Gets an auto incrementing filename. */
 std::filesystem::path next_filename_stem_matching_pattern(std::filesystem::path filename_stem_pattern);
 
 /* Values added to FatFs FRESULT enum, values outside the FRESULT data type */

firmware/application/freqman.cpp

@@ -229,7 +229,7 @@ bool load_freqman_file_ex(std::string& file_stem, freqman_db& db, bool load_freq
             {
                 db.push_back({ frequency_a, frequency_b, description, type , modulation , bandwidth , step , tone });
                 n++;
-                if (n >= FREQMAN_MAX_PER_FILE) return true;
+                if (n > FREQMAN_MAX_PER_FILE) return true;
             }
 
             line_start = line_end + 1;

firmware/application/freqman.hpp

@@ -31,9 +31,10 @@
 #include "string_format.hpp"
 #include "ui_widget.hpp"
 
-#define FREQMAN_DESC_MAX_LEN 30
-#define FREQMAN_MAX_PER_FILE 500        /* MAX PER FILES */
-#define FREQMAN_MAX_PER_FILE_STR "500"  /*STRING OF FREQMAN_MAX_PER_FILE */
+#define FREQMAN_DESC_MAX_LEN 24         // This is the number of characters that can be drawn in front of "R: TEXT..." before taking a full screen line
+#define FREQMAN_MAX_PER_FILE 115        // Maximum of entries we can read. This is a hardware limit
+                                        // It was tested and lowered to leave a bit of space to the caller
+#define FREQMAN_MAX_PER_FILE_STR "115"  // STRING OF FREQMAN_MAX_PER_FILE
 
 using namespace ui;
 using namespace std;

firmware/application/irq_controls.cpp

@@ -42,7 +42,7 @@ using namespace hackrf::one;
 
 static Thread* thread_controls_event = NULL;
 
-static std::array<Debounce, 7> switch_debounce;
+static std::array<Debounce, 8> switch_debounce;
 
 static Encoder encoder;
 
@@ -193,11 +193,13 @@ void controls_init() {
 
 SwitchesState get_switches_state() {
 	SwitchesState result;
-	for(size_t i=0; i<result.size(); i++) {
+	for(size_t i=0; i<result.size()-1; i++) {
  		// TODO: Ignore multiple keys at the same time?
  		result[i] = switch_debounce[i].state();
 	}
 
+	result[result.size()-1] = switch_debounce[switch_debounce.size()-1].state();
+
 	return result;
 }
 

firmware/application/irq_controls.hpp

@@ -33,9 +33,10 @@ enum class Switch {
 	Down = 2,
 	Up = 3,
 	Sel = 4,
+	Dfu = 5,
 };
 
-using SwitchesState = std::bitset<5>;
+using SwitchesState = std::bitset<6>;
 
 using EncoderPosition = uint32_t;
 

firmware/application/lz4.S

@@ -0,0 +1,70 @@
+/* source: https://community.arm.com/arm-community-blogs/b/architectures-and-processors-blog/posts/lz4-decompression-routine-for-cortex-m0-and-later */
+
+                    .syntax             unified
+                    .cpu                cortex-m0
+                    .thumb
+
+/* License: Public Domain - I cannot be held responsible for what it does or does not do if you use it, whether it's modified or not. */
+/* Entry point = unlz4. On entry: r0 = source, r1 = destination. The first two bytes of the source must contain the length of the compressed data. */
+
+                    .func               unlz4
+                    .global             unlz4,unlz4_len
+                    .type               unlz4,%function
+                    .type               unlz4_len,%function
+
+                    .thumb_func
+unlz4:              ldrh                r2,[r0]             /* get length of compressed data */
+                    adds                r0,r0,#2            /* advance source pointer */
+
+                    .thumb_func
+unlz4_len:          push                {r4-r6,lr}          /* save r4, r5, r6 and return-address */
+                    adds                r5,r2,r0            /* point r5 to end of compressed data */
+
+getToken:           ldrb                r6,[r0]             /* get token */
+                    adds                r0,r0,#1            /* advance source pointer */
+                    lsrs                r4,r6,#4            /* get literal length, keep token in r6 */
+                    beq                 getOffset           /* jump forward if there are no literals */
+                    bl                  getLength           /* get length of literals */
+                    movs                r2,r0               /* point r2 to literals */
+                    bl                  copyData            /* copy literals (r2=src, r1=dst, r4=len) */
+                    movs                r0,r2               /* update source pointer */
+
+getOffset:          ldrb                r3,[r0,#0]          /* get match offset's low byte */
+                    subs                r2,r1,r3            /* subtract from destination; this will become the match position */
+                    ldrb                r3,[r0,#1]          /* get match offset's high byte */
+                    lsls                r3,r3,#8            /* shift to high byte */
+                    subs                r2,r2,r3            /* subtract from match position */
+                    adds                r0,r0,#2            /* advance source pointer */
+                    lsls                r4,r6,#28           /* get rid of token's high 28 bits */
+                    lsrs                r4,r4,#28           /* move the 4 low bits back where they were */
+                    bl                  getLength           /* get length of match data */
+                    adds                r4,r4,#4            /* minimum match length is 4 bytes */
+                    bl                  copyData            /* copy match data (r2=src, r1=dst, r4=len) */
+                    cmp                 r0,r5               /* check if we've reached the end of the compressed data */
+                    blt                 getToken            /* if not, go get the next token */
+                    pop                 {r4-r6,pc}          /* restore r4, r5 and r6, then return */
+
+                    .thumb_func
+getLength:          cmp                 r4,#0x0f            /* if length is 15, then more length info follows */
+                    bne                 gotLength           /* jump forward if we have the complete length */
+
+getLengthLoop:      ldrb                r3,[r0]             /* read another byte */
+                    adds                r0,r0,#1            /* advance source pointer */
+                    adds                r4,r4,r3            /* add byte to length */
+                    cmp                 r3,#0xff            /* check if end reached */
+                    beq                 getLengthLoop       /* if not, go round loop */
+gotLength:          bx                  lr                  /* return */
+
+                    .thumb_func
+copyData:           rsbs                r4,r4,#0            /* index = -length */
+                    subs                r2,r2,r4            /* point to end of source */
+                    subs                r1,r1,r4            /* point to end of destination */
+                    
+copyDataLoop:       ldrb                r3,[r2,r4]          /* read byte from source_end[-index] */
+                    strb                r3,[r1,r4]          /* store byte in destination_end[-index] */
+                    adds                r4,r4,#1            /* increment index */
+                    bne                 copyDataLoop        /* keep going until index wraps to 0 */
+                    bx                  lr                  /* return */
+                    .size               unlz4,.-unlz4
+                    .endfunc
+/* 42 narrow instructions = 84 bytes */

firmware/application/lz4.h

@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
+ * Copyright (C) 2023 Bernd Herzog
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __LZ4_H__
+#define __LZ4_H__
+
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+    extern void unlz4_len(const void *aSource, void *aDestination, uint32_t aLength);
+#ifdef __cplusplus
+}
+#endif
+
+#endif /*__LZ4_H__*/

firmware/application/main.cpp

@@ -145,14 +145,14 @@ Continuous (Fox-oring)
 rffc507x::RFFC507x first_if;
 
 static void event_loop() {
-	ui::Context context;
-	ui::SystemView system_view {
+	static ui::Context context;
+	static ui::SystemView system_view {
 		context,
 		portapack::display.screen_rect()
 	};
 
 	EventDispatcher event_dispatcher { &system_view, context };
-	MessageHandlerRegistration message_handler_display_sleep {
+	static MessageHandlerRegistration message_handler_display_sleep {
 		Message::ID::DisplaySleep,
 		[&event_dispatcher](const Message* const) {
 			event_dispatcher.set_display_sleep(true);

firmware/application/portapack.cpp

@@ -61,7 +61,7 @@ portapack::IO io {
 	portapack::gpio_io_stbx,
 	portapack::gpio_addr,
 	portapack::gpio_lcd_te,
-	portapack::gpio_unused,
+	portapack::gpio_dfu,
 };
 
 portapack::BacklightCAT4004 backlight_cat4004;
@@ -489,10 +489,13 @@ bool init() {
 	
 	chThdSleepMilliseconds(10);
 
-	if( !portapack::cpld::update_if_necessary(portapack_cpld_config()) ) {
+	portapack::cpld::CpldUpdateStatus result = portapack::cpld::update_if_necessary(portapack_cpld_config());
+	if ( result == portapack::cpld::CpldUpdateStatus::Program_failed ) {
+
 		chThdSleepMilliseconds(10);
-		// If using a "2021/12 QFP100", press and hold the left button while booting. Should only need to do once.
-		if (load_config() != 3 && load_config() != 4){
+		// Mode left (R1) and right (R2,H2,H2+) bypass going into hackrf mode after failing CPLD update
+		// Mode center (autodetect), up (R1) and down (R2,H2,H2+) will go into hackrf mode after failing CPLD update
+		if (load_config() != 3 /* left */ && load_config() != 4 /* right */){
 			shutdown_base();
 			return false;
 		}
@@ -515,11 +518,13 @@ bool init() {
 	return true;
 }
 
-void shutdown() {
+void shutdown(const bool leave_screen_on) {
 	gpdma::controller.disable();
 
-	backlight()->off();
-	display.shutdown();
+	if (!leave_screen_on) {
+		backlight()->off();
+		display.shutdown();
+	}
 	
 	radio::disable();
 	audio::shutdown();

firmware/application/portapack.hpp

@@ -63,7 +63,7 @@ void set_antenna_bias(const bool v);
 bool get_antenna_bias();
 
 bool init();
-void shutdown();
+void shutdown(const bool leave_screen_on = false);
 
 Backlight* backlight();
 

firmware/application/touch.cpp

@@ -81,16 +81,21 @@ void Manager::feed(const Frame& frame) {
 	const auto touch_raw = frame.touch;
 	//const auto touch_stable = touch_debounce.state();
 	const auto touch_stable = frame.touch;
-	bool touch_pressure = false;
+	bool touch_down_pressure = false;
+	bool touch_up_pressure = false;
 
 	// Only feed coordinate averaging if there's a touch.
 	// TODO: Separate threshold to gate coordinates for filtering?
 	if( touch_raw ) {
 		const auto metrics = calculate_metrics(frame);
 
-		// TODO: Add touch pressure hysteresis?
-		touch_pressure = (metrics.r < r_touch_threshold);
-		if( touch_pressure ) {
+		constexpr float r_touch_down_threshold = 3200.0f;
+		constexpr float r_touch_up_threshold = r_touch_down_threshold * 2.0f;
+
+		touch_down_pressure = (metrics.r < r_touch_down_threshold);
+		touch_up_pressure = (metrics.r < r_touch_up_threshold);
+
+		if( touch_down_pressure ) {
 			filter_x.feed(metrics.x * 1024);
 			filter_y.feed(metrics.y * 1024);
 		}
@@ -101,7 +106,7 @@ void Manager::feed(const Frame& frame) {
 
 	switch(state) {
 	case State::NoTouch:
-		if( touch_stable && touch_pressure && !persistent_memory::disable_touchscreen()) {
+		if( touch_stable && touch_down_pressure && !persistent_memory::disable_touchscreen()) {
 			if( point_stable() ) {
 				state = State::TouchDetected;
 				touch_started();
@@ -110,7 +115,7 @@ void Manager::feed(const Frame& frame) {
 		break;
 
 	case State::TouchDetected:
-		if( touch_stable && touch_pressure ) {
+		if( touch_stable && touch_up_pressure ) {
 			touch_moved();
 		} else {
 			state = State::NoTouch;

firmware/application/touch.hpp

@@ -219,7 +219,6 @@ private:
 		TouchDetected,
 	};
 
-	static constexpr float r_touch_threshold = 640;
 	static constexpr size_t touch_count_threshold { 3 };
 	static constexpr uint32_t touch_stable_bound { 8 };
 

firmware/application/ui/ui_alphanum.cpp

@@ -30,10 +30,6 @@
 
 namespace ui {
 
-void AlphanumView::paint(Painter&) {
-	draw_cursor();
-}
-
 AlphanumView::AlphanumView(
 	NavigationView& nav,
 	std::string& str,
@@ -41,7 +37,7 @@ AlphanumView::AlphanumView(
 ) : TextEntryView(nav, str, max_length)
 {
 	size_t n;
-	
+
 	add_children({
 		&button_mode,
 		&text_raw,
@@ -77,16 +73,7 @@ AlphanumView::AlphanumView(
 	field_raw.set_value('0');
 	field_raw.on_select = [this](NumberField&) {
 		char_add(field_raw.value());
-		update_text();
 	};
-
-	button_ok.on_select = [this, &nav](Button&) {
-		if (on_changed)
-			on_changed(_str);
-		nav.pop();
-	};
-
-	update_text();
 }
 
 void AlphanumView::set_mode(const uint32_t new_mode) {
@@ -120,8 +107,6 @@ void AlphanumView::on_button(Button& button) {
 		char_delete();
 	else
 		char_add(c);
-	
-	update_text();
 }
 
 bool AlphanumView::on_encoder(const EncoderEvent delta) {

firmware/application/ui/ui_alphanum.hpp

@@ -40,7 +40,6 @@ public:
 	AlphanumView& operator=(const AlphanumView&) = delete;
 	AlphanumView& operator=(AlphanumView&&) = delete;
 
-	void paint(Painter& painter) override;
 	bool on_encoder(const EncoderEvent delta) override;
 
 private:

firmware/application/ui/ui_menu.cpp

@@ -163,6 +163,8 @@ void MenuView::clear() {
 	}
 	
 	menu_items.clear();
+	highlighted_item = 0;
+	offset = 0;
 }
 
 void MenuView::add_item(MenuItem new_item) {
@@ -209,7 +211,7 @@ MenuItemView* MenuView::item_view(size_t index) const {
 bool MenuView::set_highlighted(int32_t new_value) {
 	int32_t item_count = (int32_t)menu_items.size();
 	
-	if (new_value < 0)
+	if (new_value < 0 || item_count == 0)
 		return false;
 	
 	if (new_value >= item_count)
@@ -238,7 +240,7 @@ bool MenuView::set_highlighted(int32_t new_value) {
 	return true;
 }
 
-uint32_t MenuView::highlighted_index() {
+uint32_t MenuView::highlighted_index() const {
 	return highlighted_item;
 }
 
@@ -262,7 +264,7 @@ bool MenuView::on_key(const KeyEvent key) {
 	case KeyEvent::Select:
 	case KeyEvent::Right:
 		if( menu_items[highlighted_item].on_select ) {
-			menu_items[highlighted_item].on_select();
+			menu_items[highlighted_item].on_select(key);
 		}
 		return true;
 

firmware/application/ui/ui_menu.hpp

@@ -39,7 +39,7 @@ struct MenuItem {
 	std::string text;
 	ui::Color color;
 	const Bitmap* bitmap;
-	std::function<void(void)> on_select;
+	std::function<void(KeyEvent)> on_select;
 
 	// TODO: Prevent default-constructed MenuItems.
 	// I managed to construct a menu with three extra, unspecified menu items
@@ -87,7 +87,7 @@ public:
 	MenuItemView* item_view(size_t index) const;
 
 	bool set_highlighted(int32_t new_value);
-	uint32_t highlighted_index();
+	uint32_t highlighted_index() const;
 
 	void set_parent_rect(const Rect new_parent_rect) override;
 	void on_focus() override;

firmware/application/ui/ui_rssi.cpp

@@ -102,7 +102,7 @@ namespace ui {
             // show green peak value 
             if( peak_enabled )
             {
-                const Rect r5 { r.left() + peak - 1 , r.top() , 3 , r.height() };
+                const Rect r5 { r.left() + peak - 3 , r.top() , 3 , r.height() };
                 painter.fill_rectangle(
                         r5,
                         Color::green()
@@ -160,7 +160,7 @@ namespace ui {
             // show green peak value if enabled
             if( peak_enabled )
             {
-                const Rect r5 { r.left(), r.bottom() - peak - 1 , r.width() , 3 };
+                const Rect r5 { r.left(), r.bottom() - peak - 3 , r.width() , 3 };
                 painter.fill_rectangle(
                         r5,
                         Color::green()
@@ -434,6 +434,23 @@ namespace ui {
     void RSSIGraph::set_nb_columns( int16_t nb )
     {
         nb_columns = nb ;
+        while( graph_list.size() >  nb_columns )
+        {
+            graph_list.erase( graph_list.begin() );
+        }
+    }
+
+    void RSSIGraph::on_hide() {
+        nb_columns_before_hide = nb_columns ;
+        nb_columns = 1 ;
+        while( graph_list.size() >  nb_columns )
+        {
+            graph_list.erase( graph_list.begin() );
+        }
+    }
+
+    void RSSIGraph::on_show() {
+        nb_columns = nb_columns_before_hide ;
     }
 
     void RSSI::on_focus() {

firmware/application/ui/ui_rssi.hpp

@@ -115,8 +115,12 @@ namespace ui {
             void paint(Painter& painter) override;
             void add_values(int16_t rssi_min, int16_t rssi_avg, int16_t rssi_max, int16_t db );
             void set_nb_columns( int16_t nb );
+            
+            void on_hide() override ;
+            void on_show() override ;
 
         private:
+            uint16_t nb_columns_before_hide = 16 ;
             uint16_t nb_columns = 16 ;
             RSSIGraphList graph_list { } ;
     };

firmware/application/ui/ui_textentry.cpp

@@ -29,9 +29,25 @@ using namespace portapack;
 
 namespace ui {
 
-void text_prompt(NavigationView& nav, std::string& str, const size_t max_length, const std::function<void(std::string&)> on_done) {
+void text_prompt(
+	NavigationView& nav,
+	std::string& str,
+	size_t max_length,
+	std::function<void(std::string&)> on_done
+) {
+	text_prompt(nav, str, str.length(), max_length, on_done);
+}
+
+void text_prompt(
+	NavigationView& nav,
+	std::string& str,
+	uint32_t cursor_pos,
+	size_t max_length,
+	std::function<void(std::string&)> on_done
+) {
 	//if (persistent_memory::ui_config_textentry() == 0) {
 		auto te_view = nav.push<AlphanumView>(str, max_length);
+		te_view->set_cursor(cursor_pos);
 		te_view->on_changed = [on_done](std::string& value) {
 			if (on_done)
 				on_done(value);
@@ -45,76 +61,169 @@ void text_prompt(NavigationView& nav, std::string& str, const size_t max_length,
 	}*/
 }
 
-void TextEntryView::update_text() {
-	if (cursor_pos < 30)
-		text_input.set(_str + std::string(_max_length - _str.length(), ' '));
-	else
-		text_input.set('<' + _str.substr(cursor_pos - 29, 29));
-		
-	draw_cursor();
+/* TextField ***********************************************************/
+
+TextField::TextField(
+	std::string& str,
+	size_t max_length,
+	Point position,
+	uint32_t length
+) : Widget{ { position, { 8 * static_cast<int>(length), 16 } } },
+	text_{ str },
+	max_length_{ std::max<size_t>(max_length, str.length()) },
+	char_count_{ std::max<uint32_t>(length, 1) },
+	cursor_pos_{ text_.length() },
+	insert_mode_{ true }
+{
+	set_focusable(true);
 }
 
+const std::string& TextField::value() const {
+	return text_;
+}
+
+void TextField::set_cursor(uint32_t pos) {
+	cursor_pos_ = std::min<size_t>(pos, text_.length());
+	set_dirty();
+}
+
+void TextField::set_insert_mode() {
+	insert_mode_ = true;
+}
+
+void TextField::set_overwrite_mode() {
+	insert_mode_ = false;
+}
+
+void TextField::char_add(char c) {
+	// Don't add if inserting and at max_length and
+	// don't overwrite if past the end of the text.
+	if ((text_.length() >= max_length_ && insert_mode_) ||
+		(cursor_pos_ >= text_.length() && !insert_mode_))
+		return;
+
+	if (insert_mode_)
+		text_.insert(cursor_pos_, 1, c);
+	else
+		text_[cursor_pos_] = c;
+
+	cursor_pos_++;
+	set_dirty();
+}
+
+void TextField::char_delete() {
+	if (cursor_pos_ == 0)
+		return;
+
+	cursor_pos_--;
+	text_.erase(cursor_pos_, 1);
+	set_dirty();
+}
+
+void TextField::paint(Painter& painter) {
+	constexpr int char_width = 8;
+
+	auto rect = screen_rect();
+	auto text_style = has_focus() ? style().invert() : style();
+	auto offset = 0;
+
+	// Does the string need to be shifted?
+	if (cursor_pos_ >= char_count_)
+		offset = cursor_pos_ - char_count_ + 1;
+
+	// Clear the control.
+	painter.fill_rectangle(rect, text_style.background);
+
+	// Draw the text starting at the offset.
+	for (uint32_t i = 0; i < char_count_ && i + offset < text_.length(); i++) {
+		painter.draw_char(
+			{ rect.location().x() + (static_cast<int>(i) * char_width), rect.location().y() },
+			text_style,
+			text_[i + offset]
+		);
+	}
+
+	// Determine cursor position on screen (either the cursor position or the last char).
+	int32_t cursor_x = char_width * (offset > 0 ? char_count_ - 1 : cursor_pos_);
+	Point cursor_point{ screen_pos().x() + cursor_x, screen_pos().y() };
+	auto cursor_style = text_style.invert();
+
+	// Invert the cursor character when in overwrite mode.
+	if (!insert_mode_ && (cursor_pos_) < text_.length())
+		painter.draw_char(cursor_point, cursor_style, text_[cursor_pos_]);
+
+	// Draw the cursor.
+	Rect cursor_box{ cursor_point, { char_width, 16 } };
+	painter.draw_rectangle(cursor_box, cursor_style.background);
+}
+
+bool TextField::on_key(const KeyEvent key) {
+	if (key == KeyEvent::Left && cursor_pos_ > 0)
+		cursor_pos_--;
+	else if (key == KeyEvent::Right && cursor_pos_ < text_.length())
+		cursor_pos_++;
+	else if (key == KeyEvent::Select)
+		insert_mode_ = !insert_mode_;
+	else
+		return false;
+
+	set_dirty();
+	return true;
+}
+
+bool TextField::on_encoder(const EncoderEvent delta) {
+	int32_t new_pos = cursor_pos_ + delta;
+
+	// Let the encoder wrap around the ends of the text.
+	if (new_pos < 0)
+		new_pos = text_.length();
+	else if (static_cast<size_t>(new_pos) > text_.length())
+		new_pos = 0;
+
+	set_cursor(new_pos);
+	return true;
+}
+
+bool TextField::on_touch(const TouchEvent event) {
+	if (event.type == TouchEvent::Type::Start)
+		focus();
+
+	set_dirty();
+	return true;
+}
+
+/* TextEntryView ***********************************************************/
+
 void TextEntryView::char_delete() {
-	if (!cursor_pos) return;
-	
-	cursor_pos--;
-	_str.resize(cursor_pos);
+	text_input.char_delete();
 }
 
 void TextEntryView::char_add(const char c) {
-	if (cursor_pos >= _max_length) return;
-	
-	_str += c;
-	cursor_pos++;
+	text_input.char_add(c);
 }
 
-void TextEntryView::draw_cursor() {
-	Point draw_pos;
-	
-	draw_pos = { text_input.screen_rect().location().x() + std::min((Coord)cursor_pos, (Coord)28) * 8,
-					text_input.screen_rect().location().y() + 16 };
-	
-	// Erase previous
-	display.fill_rectangle(
-		{ { text_input.screen_rect().location().x(), draw_pos.y() }, { text_input.screen_rect().size().width(), 4 } },
-		Color::black()
-	);
-	// Draw new
-	display.fill_rectangle(
-		{ draw_pos, { 8, 4 } },
-		Color::white()
-	);
+void TextEntryView::set_cursor(uint32_t pos) {
+	text_input.set_cursor(pos);
 }
 
 void TextEntryView::focus() {
-	button_ok.focus();
+	text_input.focus();
 }
 
 TextEntryView::TextEntryView(
 	NavigationView& nav,
 	std::string& str,
 	size_t max_length
-) : _str(str),
-	_max_length(max_length)
+) : text_input{ str, max_length, { 0, 0 } }
 {
-	
-	// Trim from right
-	//_str->erase(std::find_if(_str->rbegin(), _str->rend(), std::not1(std::ptr_fun<int, int>(std::isspace))).base(), _str->end());
-	if (_str.length() > _max_length)
-		_str.resize(_max_length);
-	_str.reserve(_max_length);
-	
-	cursor_pos = _str.length();
-	
 	add_children({
 		&text_input,
 		&button_ok
 	});
-	
-	button_ok.on_select = [this, &nav](Button&) {
-		_str.resize(cursor_pos);
+
+	button_ok.on_select = [this, &str, &nav](Button&) {
 		if (on_changed)
-			on_changed(_str);
+			on_changed(str);
 		nav.pop();
 	};
 }

firmware/application/ui/ui_textentry.hpp

@@ -28,12 +28,60 @@
 
 namespace ui {
 
+// A TextField is bound to a string reference and allows the string
+// to be manipulated. The field itself does not provide the UI for
+// setting the value. It provides the UI of rendering the text,
+// a cursor, and an API to edit the string content.
+class TextField : public Widget {
+public:
+	TextField(std::string& str, Point position, uint32_t length = 30)
+		: TextField{str, 64, position, length} { }
+
+	// Str: the string containing the content to edit.
+	// Max_length: max length the string is allowed to use.
+	// Position: the top-left corner of the control.
+	// Length: the number of characters to display.
+	//   - Characters are 8 pixels wide.
+	//   - The screen can show 30 characters max.
+	//   - The control is 16 pixels tall.
+	TextField(std::string& str, size_t max_length, Point position, uint32_t length = 30);
+
+	TextField(const TextField&) = delete;
+	TextField(TextField&&) = delete;
+	TextField& operator=(const TextField&) = delete;
+	TextField& operator=(TextField&&) = delete;
+
+	const std::string& value() const;
+
+	void set_cursor(uint32_t pos);
+	void set_insert_mode();
+	void set_overwrite_mode();
+
+	void char_add(char c);
+	void char_delete();
+
+	void paint(Painter& painter) override;
+
+	bool on_key(const KeyEvent key) override;
+	bool on_encoder(const EncoderEvent delta) override;
+	bool on_touch(const TouchEvent event) override;
+
+protected:
+	std::string&   text_;
+	size_t         max_length_;
+	uint32_t       char_count_;
+	uint32_t       cursor_pos_;
+	bool           insert_mode_;
+};
+
 class TextEntryView : public View {
 public:
 	std::function<void(std::string&)> on_changed { };
 	
 	void focus() override;
 	std::string title() const override { return "Text entry"; };
+
+	void set_cursor(uint32_t pos);
 	
 protected:
 	TextEntryView(NavigationView& nav, std::string& str, size_t max_length);
@@ -45,24 +93,30 @@ protected:
 
 	void char_add(const char c);
 	void char_delete();
-	void draw_cursor();
-	void update_text();
-	
-	std::string& _str;
-	size_t _max_length;
-	uint32_t cursor_pos { 0 };
-	
-	Text text_input {
-		{ 0, 0, 240, 16 }
-	};
 	
+	TextField text_input;
 	Button button_ok {
 		{ 10 * 8, 33 * 8, 9 * 8, 32 },
 		"OK"
 	};
 };
 
-void text_prompt(NavigationView& nav, std::string& str, size_t max_length, const std::function<void(std::string&)> on_done = nullptr);
+// Show the TextEntry view to receive keyboard input.
+// NB: This function returns immediately. 'str' is taken
+// by reference and its lifetime must be ensured by the
+// caller until the TextEntry view is dismissed.
+void text_prompt(
+	NavigationView& nav,
+	std::string& str,
+	size_t max_length,
+	std::function<void(std::string&)> on_done = nullptr);
+
+void text_prompt(
+	NavigationView& nav,
+	std::string& str,
+	uint32_t cursor_pos,
+	size_t max_length,
+	std::function<void(std::string&)> on_done = nullptr);
 
 } /* namespace ui */
 

firmware/application/ui_navigation.cpp

@@ -29,6 +29,7 @@
 #include "bmp_splash.hpp"
 #include "bmp_modal_warning.hpp"
 #include "portapack_persistent_memory.hpp"
+#include "portapack_shared_memory.hpp"
 
 #include "ui_about_simple.hpp"
 #include "ui_adsb_rx.hpp"
@@ -70,6 +71,8 @@
 #include "ui_playlist.hpp"
 #include "ui_view_wav.hpp"
 #include "ui_whipcalc.hpp"
+#include "ui_flash_utility.hpp"
+#include "ui_sd_over_usb.hpp"
 
 //#include "acars_app.hpp"
 #include "ais_app.hpp"
@@ -613,6 +616,8 @@ UtilitiesMenuView::UtilitiesMenuView(NavigationView& nav) {
 		{ "Antenna length",	ui::Color::green(),		&bitmap_icon_tools_antenna,	[&nav](){ nav.push<WhipCalcView>(); } },
 
 		{ "Wipe SD card",	ui::Color::red(),		&bitmap_icon_tools_wipesd,	[&nav](){ nav.push<WipeSDView>(); } },
+		{ "Flash Utility",	ui::Color::red(),		&bitmap_icon_temperature,	[&nav](){ nav.push<FlashUtilityView>(); } },
+		{ "SD over USB",	ui::Color::yellow(),	&bitmap_icon_hackrf,		[&nav](){ nav.push<SdOverUsbView>(); } },
 	});
 	set_max_rows(2); // allow wider buttons
 }
@@ -719,6 +724,14 @@ SystemView::SystemView(
 	
 		navigation_view.push<SystemMenuView>();
 		
+		File pmem_flag_file_handle ;
+		std::string pmem_flag_file = "/SETTINGS/PMEM_FILEFLAG" ;
+		auto result = pmem_flag_file_handle.open(pmem_flag_file);	
+		if(!result.is_valid()) 
+		{
+			portapack::persistent_memory::load_persistent_settings_from_file("SETTINGS/pmem_settings");
+		}
+
 		if (portapack::persistent_memory::config_splash())
 		{
 			navigation_view.push<BMPView>();
@@ -736,6 +749,36 @@ Context& SystemView::context() const {
 	return context_;
 }
 
+void SystemView::toggle_overlay() {
+	if (overlay_active){
+		this->remove_child(&this->overlay);
+		this->set_dirty();
+		shared_memory.request_m4_performance_counter = 0;
+	}
+	else{
+		this->add_child(&this->overlay);
+		this->set_dirty();
+		shared_memory.request_m4_performance_counter = 1;
+		shared_memory.m4_cpu_usage = 0;
+		shared_memory.m4_heap_usage = 0;
+		shared_memory.m4_stack_usage = 0;
+	}
+
+	overlay_active = !overlay_active;
+}
+
+void SystemView::paint_overlay() {
+	static bool last_paint_state = false;
+	if (overlay_active){
+		// paint background only every other second
+		if ((((chTimeNow()>>10) & 0x01) == 0x01) == last_paint_state)
+			return;
+
+		last_paint_state = !last_paint_state;
+		this->overlay.set_dirty();
+	}
+}
+
 /* ***********************************************************************/
 
 void BMPView::focus() {

firmware/application/ui_navigation.hpp

@@ -33,6 +33,7 @@
 #include "ui_channel.hpp"
 #include "ui_audio.hpp"
 #include "ui_sd_card_status_view.hpp"
+#include "ui_dfu_menu.hpp"
 
 #include "bitmap.hpp"
 #include "ff.h"
@@ -75,6 +76,15 @@ namespace ui
 		{
 			return reinterpret_cast<T *>(push_view(std::unique_ptr<View>(new T(*this, std::forward<Args>(args)...))));
 		}
+
+		// Pushes a new view under the current on the stack so the current view returns into this new one.
+		template <class T, class... Args>
+		void push_under_current(Args &&...args)
+		{
+			auto new_view = std::unique_ptr<View>(new T(*this, std::forward<Args>(args)...));
+			view_stack.insert(view_stack.end() - 1, std::move(new_view));
+		}
+
 		template <class T, class... Args>
 		T *replace(Args &&...args)
 		{
@@ -125,7 +135,7 @@ namespace ui
 			Color::dark_grey()};
 
 		ImageButton button_back{
-			{2, 0 * 16, 16, 16},
+			{0, 0 * 16, 12 * 8, 16},//back button is long enough to cover the title area to make it easier to touch
 			&bitmap_icon_previous,
 			Color::white(),
 			Color::dark_grey()};
@@ -290,10 +300,15 @@ namespace ui
 			const Rect parent_rect);
 
 		Context &context() const override;
+		void toggle_overlay();
+		void paint_overlay();
 
 	private:
+		bool overlay_active {false};
+
 		SystemStatusView status_view{navigation_view};
 		InformationView info_view{navigation_view};
+		DfuMenu overlay{navigation_view};
 		NavigationView navigation_view{};
 		Context &context_;
 	};

firmware/baseband/CMakeLists.txt

@@ -90,8 +90,6 @@ set(CSRC
 	${PORTSRC}
 	${KERNSRC}
 	${TESTSRC}
-	${HALSRC}
-	${PLATFORMSRC}
 	${BOARDSRC}
 )
 
@@ -141,6 +139,7 @@ set(CPPSRC
 	${COMMON}/chibios_cpp.cpp
 	debug.cpp
 	${COMMON}/gcc.cpp
+	${COMMON}/performance_counter.cpp
 	tone_gen.cpp
 )
 
@@ -189,7 +188,7 @@ set(AOPT)
 set(TOPT "-mthumb -DTHUMB")
 
 # Define C warning options here
-set(CWARN "-Wall -Wextra -Wstrict-prototypes")
+set(CWARN "-Wall -Wextra")
 
 # Define C++ warning options here
 set(CPPWARN "-Wall -Wextra")
@@ -262,10 +261,11 @@ macro(DeclareTargets chunk_tag name)
 	project("baseband_${name}")
 
 	include(${RULESPATH}/rules.cmake)
-	add_executable(${PROJECT_NAME}.elf $<TARGET_OBJECTS:baseband_shared> ${MODE_CPPSRC})
+	add_executable(${PROJECT_NAME}.elf $<TARGET_OBJECTS:baseband_shared> ${MODE_CPPSRC} ${HALSRC} ${PLATFORMSRC})
 	set_target_properties(${PROJECT_NAME}.elf PROPERTIES LINK_DEPENDS ${LDSCRIPT})
 	add_definitions(${DEFS})
-	include_directories(. ${INCDIR})
+	target_compile_definitions(${PROJECT_NAME}.elf PUBLIC "-DBASEBAND_${name}")
+	include_directories(. ${INCDIR} ${MODE_INCDIR})
 	link_directories(${LLIBDIR})
 	target_link_libraries(${PROJECT_NAME}.elf ${LIBS})
 	target_link_libraries(${PROJECT_NAME}.elf -Wl,-Map=${PROJECT_NAME}.map)
@@ -273,7 +273,8 @@ macro(DeclareTargets chunk_tag name)
 	add_custom_command(
 		OUTPUT ${PROJECT_NAME}.bin ${PROJECT_NAME}.img
 		COMMAND ${CMAKE_OBJCOPY} -O binary ${PROJECT_NAME}.elf ${PROJECT_NAME}.bin
-		COMMAND ${MAKE_IMAGE_CHUNK} ${PROJECT_NAME}.bin ${chunk_tag} ${PROJECT_NAME}.img
+		COMMAND ${LZ4} -f -9 ${PROJECT_NAME}.bin ${PROJECT_NAME}.lz4
+		COMMAND ${MAKE_IMAGE_CHUNK} ${PROJECT_NAME}.lz4 ${chunk_tag} ${PROJECT_NAME}.img
 		DEPENDS ${PROJECT_NAME}.elf ${MAKE_IMAGE_CHUNK}
 		VERBATIM
 	)
@@ -504,11 +505,70 @@ set(MODE_CPPSRC
 )
 DeclareTargets(PWFM wfm_audio)
 
+### Flash Utility
+
+include(${CHIBIOS_PORTAPACK}/os/various/fatfs_bindings/fatfs.cmake)
+set(MODE_INCDIR ${FATFSINC})
+set(MODE_CPPSRC
+	proc_flash_utility.cpp
+	w25q80bv.cpp
+	${FATFSSRC}
+)
+DeclareTargets(PFUT flash_utility)
+
+### SD over USB
+
+set(MODE_INCDIR
+	${HACKRF_PATH}/firmware
+	${HACKRF_PATH}/firmware/common
+	${HACKRF_PATH}/firmware/libopencm3/include
+)
+set(MODE_CPPSRC
+	sd_over_usb/proc_sd_over_usb.cpp
+	
+	sd_over_usb/scsi.c
+	sd_over_usb/diskio.c
+	sd_over_usb/sd_over_usb.c
+	sd_over_usb/usb_descriptor.c
+	sd_over_usb/hackrf_core.c
+
+	${HACKRF_PATH}/firmware/common/usb.c
+	${HACKRF_PATH}/firmware/common/usb_queue.c
+	${HACKRF_PATH}/firmware/hackrf_usb/usb_device.c
+	${HACKRF_PATH}/firmware/hackrf_usb/usb_endpoint.c
+	${HACKRF_PATH}/firmware/common/usb_request.c
+	${HACKRF_PATH}/firmware/common/usb_standard_request.c
+	${HACKRF_PATH}/firmware/common/platform_detect.c
+	${HACKRF_PATH}/firmware/common/gpio_lpc.c
+	${HACKRF_PATH}/firmware/common/firmware_info.c
+	${HACKRF_PATH}/firmware/common/si5351c.c
+	${HACKRF_PATH}/firmware/common/i2c_bus.c
+	${HACKRF_PATH}/firmware/common/mixer.c
+	${HACKRF_PATH}/firmware/common/clkin.c
+	${HACKRF_PATH}/firmware/common/spi_bus.c
+	${HACKRF_PATH}/firmware/common/sgpio.c
+	${HACKRF_PATH}/firmware/common/rf_path.c
+	${HACKRF_PATH}/firmware/common/i2c_lpc.c
+	${HACKRF_PATH}/firmware/common/spi_ssp.c
+	${HACKRF_PATH}/firmware/common/rffc5071_spi.c
+	${HACKRF_PATH}/firmware/common/rffc5071.c
+	${HACKRF_PATH}/firmware/common/clkin.c
+	${HACKRF_PATH}/firmware/common/gpdma.c
+
+	${HACKRF_PATH}/firmware/libopencm3/lib/cm3/nvic.c
+	${HACKRF_PATH}/firmware/libopencm3/lib/cm3/sync.c
+	${HACKRF_PATH}/firmware/libopencm3/lib/lpc43xx/scu.c
+	${HACKRF_PATH}/firmware/libopencm3/lib/lpc43xx/timer.c
+	${HACKRF_PATH}/firmware/libopencm3/lib/lpc43xx/i2c.c
+)
+DeclareTargets(PUSB sd_over_usb)
+
 ### HackRF "factory" firmware
 
 add_custom_command(
 	OUTPUT hackrf.img
-	COMMAND ${MAKE_IMAGE_CHUNK} ${HACKRF_FIRMWARE_BIN_IMAGE} HRF1 hackrf.img 98304
+	COMMAND ${LZ4} -f -9 ${HACKRF_FIRMWARE_BIN_IMAGE} hackrf.lz4
+	COMMAND ${MAKE_IMAGE_CHUNK} hackrf.lz4 HRF1 hackrf.img
 	DEPENDS ${HACKRF_FIRMWARE_BIN_FILENAME} ${MAKE_IMAGE_CHUNK}
 	VERBATIM
 )

firmware/baseband/baseband_dma.cpp

@@ -20,6 +20,7 @@
  */
 
 #include "baseband_dma.hpp"
+#include "portapack_shared_memory.hpp"
 
 #include <cstdint>
 #include <cstddef>
@@ -103,8 +104,12 @@ static constexpr auto& gpdma_channel_sgpio = gpdma::channels[portapack::sgpio_gp
 
 static ThreadWait thread_wait;
 
+volatile uint32_t buffer_transfered = 0;
+volatile uint32_t buffer_handled = 0;
+
 static void transfer_complete() {
 	const auto next_lli_index = gpdma_channel_sgpio.next_lli() - &lli_loop[0];
+	buffer_transfered++;
 	thread_wait.wake_from_interrupt(next_lli_index);
 }
 
@@ -158,6 +163,10 @@ void disable() {
 
 baseband::buffer_t wait_for_buffer() {
 	const auto next_index = thread_wait.sleep();
+	buffer_handled++;
+
+	auto buffer_missed = buffer_transfered - buffer_handled;
+	shared_memory.m4_buffer_missed = buffer_missed;
 	
 	if( next_index >= 0 ) {
 		const size_t free_index = (next_index + transfers_per_buffer - 2) & transfers_mask;

firmware/baseband/chconf.h

@@ -508,6 +508,8 @@
 }
 #endif
 
+
+
 /**
  * @brief   System tick event hook.
  * @details This hook is invoked in the system tick handler immediately
@@ -516,6 +518,8 @@
 #if !defined(SYSTEM_TICK_EVENT_HOOK) || defined(__DOXYGEN__)
 #define SYSTEM_TICK_EVENT_HOOK() {                                          \
   /* System tick event code here.*/                                         \
+  extern void update_performance_counters();  \
+  update_performance_counters();  \
 }
 #endif
 

firmware/baseband/debug.cpp

@@ -26,6 +26,7 @@
 #include <hal.h>
 
 #include "portapack_shared_memory.hpp"
+#include "performance_counter.hpp"
 
 void write_m4_panic_msg(const char *panic_message, struct extctx *ctxp) {
     if (ctxp == nullptr) {
@@ -116,5 +117,28 @@ CH_IRQ_HANDLER(HardFaultVector) {
 #endif
 }
 
+void update_performance_counters() {
+	auto performance_counter_active = shared_memory.request_m4_performance_counter;
+	if (performance_counter_active == 0x00)
+		return;
+
+	static bool last_paint_state = false;
+	if ((((chTimeNow()>>10) & 0x01) == 0x01) == last_paint_state)
+		return;
+
+    // Idle thread state is sometimes unuseable
+   	if (chThdGetTicks(chSysGetIdleThread()) > 0x10000000)
+        return;
+
+	last_paint_state = !last_paint_state;
+
+	auto utilisation = get_cpu_utilisation_in_percent();
+	auto free_stack = (uint32_t)get_free_stack_space();
+	auto free_heap = chCoreStatus();
+
+	shared_memory.m4_cpu_usage = utilisation;
+	shared_memory.m4_stack_usage = free_stack;
+	shared_memory.m4_heap_usage = free_heap;
 }
 
+} /* extern "C" */

firmware/baseband/debug.hpp

@@ -36,6 +36,7 @@ inline uint32_t get_free_stack_space(){
     return stack_space_left;
 }
 
+/* Executes a breakpoint only when a debugger is attached. */
 #define HALT_IF_DEBUGGING()                              \
   do {                                                   \
     if ((*(volatile uint32_t *)0xE000EDF0) & (1 << 0)) { \
@@ -43,4 +44,9 @@ inline uint32_t get_free_stack_space(){
     }                                                    \
 } while (0)
 
+/* Stops execution until a debugger is attached. */
+#define HALT_UNTIL_DEBUGGING()                                \
+  while (!((*(volatile uint32_t *)0xE000EDF0) & (1 << 0))) {} \
+  __asm__ __volatile__("bkpt 1")
+
 #endif/*__DEBUG_H__*/

firmware/baseband/dsp_modulate.cpp

@@ -83,6 +83,12 @@ SSB::SSB() : hilbert() {
 }
 
 void SSB::execute(const buffer_s16_t& audio, const buffer_c8_t& buffer, bool& configured_in,  uint32_t& new_beep_index, uint32_t& new_beep_timer,TXProgressMessage& new_txprogress_message, AudioLevelReportMessage& new_level_message,  uint32_t& new_power_acc_count, uint32_t& new_divider ) {
+	//unused
+	(void)configured_in ; 
+	(void)new_beep_index ; 
+	(void)new_beep_timer ; 
+	(void)new_txprogress_message ; 
+
 	// No way to activate correctly  the roger beep in this option, Maybe not enough M4 CPU power , Let's  block roger beep in SSB  selection by now . 
 	int32_t		sample = 0;
 	int8_t		re = 0, im = 0;

firmware/baseband/event_m4.cpp

@@ -20,6 +20,7 @@
  */
 
 #include "event_m4.hpp"
+#include "debug.hpp"
 
 #include "portapack_shared_memory.hpp"
 
@@ -120,3 +121,4 @@ void EventDispatcher::handle_spectrum() {
 	const UpdateSpectrumMessage message;
 	baseband_processor->on_message(&message);
 }
+

firmware/baseband/halconf.h

@@ -119,7 +119,11 @@
  * @brief   Enables the SDC subsystem.
  */
 #if !defined(HAL_USE_SDC) || defined(__DOXYGEN__)
+#if defined(BASEBAND_flash_utility) || defined(BASEBAND_sd_over_usb)
+#define HAL_USE_SDC                 TRUE
+#else
 #define HAL_USE_SDC                 FALSE
+#endif /* BASEBAND_flash_utility */
 #endif
 
 /**

firmware/baseband/proc_ert.cpp

@@ -87,6 +87,7 @@ void ERTProcessor::consume_symbol(
 ) {
 	const uint_fast8_t sliced_symbol = (raw_symbol >= 0.0f) ? 1 : 0;
 	scm_builder.execute(sliced_symbol);
+	scmplus_builder.execute(sliced_symbol);
 	idm_builder.execute(sliced_symbol);
 }
 
@@ -97,6 +98,13 @@ void ERTProcessor::scm_handler(
 	shared_memory.application_queue.push(message);
 }
 
+void ERTProcessor::scmplus_handler(
+	const baseband::Packet& packet
+) {
+	const ERTPacketMessage message { ert::Packet::Type::SCMPLUS, packet };
+	shared_memory.application_queue.push(message);
+}
+
 void ERTProcessor::idm_handler(
 	const baseband::Packet& packet
 ) {

firmware/baseband/proc_ert.hpp

@@ -44,10 +44,14 @@ constexpr uint64_t scm_preamble_and_sync_manchester { 0b101010101001011001100110
 constexpr size_t scm_preamble_and_sync_length { 42 - 10 };
 constexpr size_t scm_payload_length_max { 150 };
 
+// ''.join(['%d%d' % (c, 1-c) for c in map(int, bin(0x16a3)[2:].zfill(16))])
+constexpr uint64_t scmplus_preamble_and_sync_manchester { 0b01010110011010011001100101011010 };
+constexpr size_t scmplus_preamble_and_sync_length { 32 - 0 };
+constexpr size_t scmplus_payload_length_max { 224 };
+
 // ''.join(['%d%d' % (c, 1-c) for c in map(int, bin(0x555516a3)[2:].zfill(32))])
 constexpr uint64_t idm_preamble_and_sync_manchester { 0b0110011001100110011001100110011001010110011010011001100101011010 };
 constexpr size_t idm_preamble_and_sync_length { 64 - 16 };
-
 constexpr size_t idm_payload_length_max { 1408 };
 
 class ERTProcessor : public BasebandProcessor {
@@ -80,6 +84,15 @@ private:
 		}
 	};
 
+	PacketBuilder<BitPattern, NeverMatch, FixedLength> scmplus_builder {
+		{ scmplus_preamble_and_sync_manchester, scmplus_preamble_and_sync_length, 1 },
+		{ },
+		{ scmplus_payload_length_max },
+		[this](const baseband::Packet& packet) {
+			this->scmplus_handler(packet);
+		}
+	};
+	
 	PacketBuilder<BitPattern, NeverMatch, FixedLength> idm_builder {
 		{ idm_preamble_and_sync_manchester, idm_preamble_and_sync_length, 1 },
 		{ },
@@ -91,6 +104,7 @@ private:
 
 	void consume_symbol(const float symbol);
 	void scm_handler(const baseband::Packet& packet);
+	void scmplus_handler(const baseband::Packet& packet);
 	void idm_handler(const baseband::Packet& packet);
 
 	float sum_half_period[2];

firmware/baseband/proc_flash_utility.cpp

@@ -0,0 +1,116 @@
+/*
+ * Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
+ * Copyright (C) 2023 Bernd Herzog
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "ch.h"
+#include "hal.h"
+#include "ff.h"
+
+#include "w25q80bv.hpp"
+#include "debug.hpp"
+#include "portapack_shared_memory.hpp"
+
+#define PAGE_LEN 256U
+#define NUM_PAGES 4096U
+
+void initialize_flash();
+void erase_flash();
+void initialize_sdcard();
+void write_firmware(FIL *);
+void write_page(size_t, uint8_t *, size_t);
+
+int main() {
+	const TCHAR *filename = reinterpret_cast<const TCHAR *>(&shared_memory.bb_data.data[0]);
+
+	initialize_flash();
+	palSetPad(LED_PORT, LEDRX_PAD);
+	erase_flash();
+
+	initialize_sdcard();
+
+	FIL firmware_file;
+	if (f_open(&firmware_file, filename, FA_READ) != FR_OK) chDbgPanic("no file");
+
+	palSetPad(LED_PORT, LEDTX_PAD);
+
+	write_firmware(&firmware_file);
+
+	palClearPad(LED_PORT, LEDTX_PAD);
+	palClearPad(LED_PORT, LEDRX_PAD);
+
+	f_close(&firmware_file);
+
+	while(1)
+		__WFE();
+
+	return 0;
+}
+
+void initialize_flash() {
+	w25q80bv::disable_spifi();
+	w25q80bv::initialite_spi();
+	w25q80bv::setup();
+
+	w25q80bv::wait_for_device();
+	w25q80bv::wait_not_busy();
+}
+
+void erase_flash() {
+	w25q80bv::remove_write_protection();
+	w25q80bv::wait_not_busy();
+
+	w25q80bv::erase_chip();
+	w25q80bv::wait_not_busy();
+}
+
+void initialize_sdcard() {
+	static FATFS fs;
+
+	sdcStart(&SDCD1, nullptr);
+	if (sdcConnect(&SDCD1) == CH_FAILED) chDbgPanic("no sd card #1");
+	if (f_mount(&fs, reinterpret_cast<const TCHAR*>(_T("")), 1) != FR_OK) chDbgPanic("no sd card #2");
+}
+
+void write_firmware(FIL *firmware_file) {
+	uint8_t *data_buffer = &shared_memory.bb_data.data[0];
+
+	for (size_t page_index = 0; page_index < NUM_PAGES; page_index++) {
+		if (page_index % 32 == 0)
+			palTogglePad(LED_PORT, LEDTX_PAD);
+
+		size_t bytes_read;
+		if (f_read(firmware_file, data_buffer, PAGE_LEN, &bytes_read) != FR_OK) chDbgPanic("no data");
+
+		if (bytes_read > 0)
+			write_page(page_index, data_buffer, bytes_read);
+
+		if (bytes_read < PAGE_LEN)
+			return;
+	}
+}
+
+void write_page(size_t page_index, uint8_t *data_buffer, size_t data_length) {
+	w25q80bv::wait_not_busy();
+	w25q80bv::remove_write_protection();
+	w25q80bv::wait_not_busy();
+	w25q80bv::write(page_index, data_buffer, data_length);
+	w25q80bv::wait_not_busy();
+}

firmware/baseband/proc_siggen.cpp

@@ -49,7 +49,7 @@ void SigGenProcessor::execute(const buffer_c8_t& buffer) {
 				// Sine
 				sample = (sine_table_i8[(tone_phase & 0xFF000000) >> 24]);
 			} else if (tone_shape == 2) {
-				// Tri
+				// Triangle
 				int8_t a = (tone_phase & 0xFF000000) >> 24;
 				sample = (a & 0x80) ? ((a << 1) ^ 0xFF) - 0x80 : (a << 1) + 0x80;
 			} else if (tone_shape == 3) {
@@ -61,24 +61,40 @@ void SigGenProcessor::execute(const buffer_c8_t& buffer) {
 			} else if (tone_shape == 5) {
 				// Square
 				sample = (((tone_phase & 0xFF000000) >> 24) & 0x80) ? 127 : -128;
-			} else if (tone_shape == 6) {
-				// Noise
-				sample = (lfsr & 0xFF000000) >> 24;
-				feedback = ((lfsr >> 31) ^ (lfsr >> 29) ^ (lfsr >> 15) ^ (lfsr >> 11)) & 1;
-				lfsr = (lfsr << 1) | feedback;
-				if (!lfsr) lfsr = 0x1337;				// Shouldn't do this :(
+			} else if (tone_shape == 6) { 	
+				// Noise generator, pseudo random noise generator, 16 bits linear-feedback shift register (LFSR) algorithm, variant Fibonacci.
+				// https://en.wikipedia.org/wiki/Linear-feedback_shift_register 
+				// 16 bits LFSR .taps: 16, 15, 13, 4 ;feedback polynomial: x^16 + x^15 + x^13 + x^4 + 1
+				// Periode 65535= 2^n-1, quite continuous .  
+				if (counter == 0) {		// we slow down the shift register, because the pseudo random noise clock freq was too high for modulator.
+					bit_16 = ((lfsr_16 >> 0) ^ (lfsr_16 >> 1) ^ (lfsr_16 >> 3) ^ (lfsr_16 >> 4) ^ (lfsr_16 >> 12) & 1);
+        			lfsr_16 = (lfsr_16 >> 1) | (bit_16 << 15);
+					sample = (lfsr_16 & 0x00FF);					  // main pseudo random noise generator. 		
+				} 
+				if (counter == 5) {		// after many empiric test, that combination mix of >>4 and >>5, gives a reasonable trade off white noise / good rf power level .
+					sample = ((lfsr_16 & 0b0000111111110000) >> 4);   // just changing the spectrum shape .
+				}
+				if (counter == 10) {
+					sample = ((lfsr_16 & 0b0001111111100000) >> 5);   // just changing the spectrum shape .
+				}
+				counter++;
+				if (counter ==15) {	
+					counter=0; 
+				}		 
+			}
+
+			if (tone_shape < 6) 	{  // we are in periodic signals, we need tone phases update.
+				tone_phase += tone_delta;
 			}
 			
-			tone_phase += tone_delta;
-			
-			// Do FM
+			// Do FM modulation
 			delta = sample * fm_delta;
 			
 			phase += delta;
 			sphase = phase + (64 << 24);
 
 			re = (sine_table_i8[(sphase & 0xFF000000) >> 24]);
-			im = (sine_table_i8[(phase & 0xFF000000) >> 24]);
+			im = (sine_table_i8[( phase & 0xFF000000) >> 24]);
 		}
 
 		buffer.p[i] = {re, im};
@@ -104,7 +120,8 @@ void SigGenProcessor::on_message(const Message* const msg) {
 			fm_delta = message.bw * (0xFFFFFFULL / 1536000);
 			tone_shape = message.shape;
 			
-			lfsr = 0x54DF0119;
+			// lfsr = seed_value ;  		// Finally not used , init lfsr 8 bits.
+			 lfsr_16 = seed_value_16;	// init lfsr 16 bits.
 
 			configured = true;
 			break;

firmware/baseband/proc_siggen.hpp

@@ -38,14 +38,18 @@ private:
 	
 	BasebandThread baseband_thread { 1536000, this, NORMALPRIO + 20, baseband::Direction::Transmit };
 	
-	uint32_t tone_delta { 0 }, fm_delta { };
-	uint32_t lfsr { }, feedback { }, tone_shape { };
+	uint32_t tone_delta { 0 }, fm_delta { },tone_phase { 0 };
+	uint8_t tone_shape { };
     uint32_t sample_count { 0 };
     bool auto_off { };
-	uint32_t tone_phase { 0 }, phase { 0 }, delta { 0 }, sphase { 0 };
-	int8_t sample { 0 };
-	int8_t re { 0 }, im { 0 };
-	
+	int32_t phase { 0 }, sphase { 0 }, delta { 0 }; 	// they may have sign in the pseudo random sample generation.
+	int8_t  sample { 0 }, re { 0 }, im { 0 };			// they have sign + and -.
+   	uint16_t seed_value_16 = {0xACE1};					// seed 16 bits lfsr : any nonzero start state will work. 
+	uint16_t lfsr_16 { }, bit_16 { }; 					// bit must be 16-bit to allow bit<<15 later in the code */
+	uint8_t counter {0};
+	// uint8_t seed_value = {0x56}; 					// Finally not used lfsr of 8 bits , seed 8blfsr : any nonzero start state will work. 
+	// uint8_t lfsr { }, bit { };  						// Finally not used lfsr of 8 bits , bit must be 8-bit to allow bit<<7 later in the code */
+
 	TXProgressMessage txprogress_message { };
 };
 

firmware/baseband/sd_over_usb/diskio.c

@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
+ * Copyright (C) 2023 Bernd Herzog
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "diskio.h"
+
+#include "ch.h"
+#include "hal.h"
+
+uint32_t get_capacity(void) {
+    return mmcsdGetCardCapacity(&SDCD1);
+}
+
+bool_t read_block(uint32_t startblk, uint8_t *buf, uint32_t n) {
+    return sdcRead(&SDCD1, startblk, buf, n);
+}
+
+bool_t write_block(uint32_t startblk, uint8_t *buf, uint32_t n) {
+    return sdcWrite(&SDCD1, startblk, buf, n);
+}

firmware/baseband/sd_over_usb/diskio.h

@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
+ * Copyright (C) 2023 Bernd Herzog
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __DISKIO_H__
+#define __DISKIO_H__
+
+#include <stdint.h>
+#include <chtypes.h>
+
+uint32_t get_capacity(void);
+bool_t read_block(uint32_t startblk, uint8_t *buf, uint32_t n);
+bool_t write_block(uint32_t startblk, uint8_t *buf, uint32_t n);
+
+#endif /* __DISKIO_H__ */

firmware/baseband/sd_over_usb/proc_sd_over_usb.cpp

@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
+ * Copyright (C) 2023 Bernd Herzog
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "ch.h"
+#include "hal.h"
+
+extern "C" {
+void start_usb(void);
+void irq_usb(void);
+void usb_transfer(void);
+
+CH_IRQ_HANDLER(Vector60) {
+	irq_usb();
+}
+}
+
+int main() {
+	sdcStart(&SDCD1, nullptr);
+	if (sdcConnect(&SDCD1) == CH_FAILED) chDbgPanic("no sd card #1");
+
+	start_usb();
+
+	while (true) {
+		usb_transfer();
+	}
+
+	return 0;
+}
+
+void update_performance_counters() {}

firmware/baseband/sd_over_usb/scsi.c

@@ -0,0 +1,274 @@
+/*
+ * Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
+ * Copyright (C) 2023 Bernd Herzog
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "scsi.h"
+#include "diskio.h"
+
+volatile bool usb_bulk_block_done = false;
+
+void usb_bulk_block_cb(void* user_data, unsigned int bytes_transferred) {
+    usb_bulk_block_done = true;
+
+    (void)user_data;
+    (void)bytes_transferred;
+}
+
+void usb_send_bulk(void* const data, const uint32_t maximum_length) {
+    usb_bulk_block_done = false;
+
+    usb_transfer_schedule_block(
+        &usb_endpoint_bulk_in,
+        data,
+        maximum_length,
+        usb_bulk_block_cb,
+        NULL);
+
+    while (!usb_bulk_block_done);
+}
+
+void usb_receive_bulk(void* const data, const uint32_t maximum_length) {
+    usb_bulk_block_done = false;
+
+    usb_transfer_schedule_block(
+        &usb_endpoint_bulk_out,
+        data,
+        maximum_length,
+        usb_bulk_block_cb,
+        NULL);
+
+    while (!usb_bulk_block_done);
+}
+
+void usb_send_csw(msd_cbw_t *msd_cbw_data, uint8_t status) {
+    msd_csw_t csw = {
+        .signature = MSD_CSW_SIGNATURE,
+        .tag = msd_cbw_data->tag,
+        .data_residue = 0,
+        .status = status
+    };
+
+    memcpy(&usb_bulk_buffer[0], &csw, sizeof(msd_csw_t));
+    usb_send_bulk(&usb_bulk_buffer[0], sizeof(msd_csw_t));
+}
+
+uint8_t handle_inquiry(msd_cbw_t *msd_cbw_data) {
+    (void)msd_cbw_data;
+
+    scsi_inquiry_response_t ret = {
+        0x00,           /* direct access block device     */
+        0x80,           /* removable                      */
+        0x00, //0x04,           /* SPC-2                          */
+        0x00, //0x02,           /* response data format           */
+        0x20,           /* response has 0x20 + 4 bytes    */
+        0x00,
+        0x00,
+        0x00,
+        "Mayhem",
+        "Portapack MSD",
+        {'v','1','.','6'}
+    };
+
+    memcpy(&usb_bulk_buffer[0], &ret, sizeof(scsi_inquiry_response_t));
+    usb_send_bulk(&usb_bulk_buffer[0], sizeof(scsi_inquiry_response_t));
+
+    return 0;
+}
+
+uint8_t handle_inquiry_serial_number(msd_cbw_t *msd_cbw_data) {
+    (void)msd_cbw_data;
+
+    scsi_unit_serial_number_inquiry_response_t ret = {
+        .peripheral = 0x00,
+        .page_code = 0x80,
+        .reserved = 0,
+        .page_length = 0x08,
+        .serialNumber = "Mayhem"
+    };
+
+    memcpy(&usb_bulk_buffer[0], &ret, sizeof(scsi_unit_serial_number_inquiry_response_t));
+    usb_send_bulk(&usb_bulk_buffer[0], sizeof(scsi_unit_serial_number_inquiry_response_t));
+
+    return 0;
+}
+
+
+uint8_t read_format_capacities(msd_cbw_t *msd_cbw_data) {
+    uint16_t len = msd_cbw_data->cmd_data[7] << 8 | msd_cbw_data->cmd_data[8];
+
+    if (len != 0) {
+        size_t num_blocks = get_capacity();
+
+        scsi_read_format_capacities_response_t ret = {
+            .header = {0, 0, 0, 1 * 8 /* num_entries * 8 */},
+            .blocknum = {((num_blocks) >> 24)& 0xff, ((num_blocks) >> 16)& 0xff, ((num_blocks) >> 8)& 0xff, num_blocks & 0xff},
+            .blocklen = {0b10 /* formated */, 0, (512) >> 8, 0},
+        };
+
+        memcpy(&usb_bulk_buffer[0], &ret, sizeof(scsi_read_format_capacities_response_t));
+        usb_send_bulk(&usb_bulk_buffer[0], sizeof(scsi_read_format_capacities_response_t));
+    }
+
+    return 0;
+}
+
+uint8_t read_capacity10(msd_cbw_t *msd_cbw_data) {
+    (void)msd_cbw_data;
+
+    size_t num_blocks = get_capacity();
+
+    scsi_read_capacity10_response_t ret = {
+        .last_block_addr = cpu_to_be32(num_blocks - 1),
+        .block_size = cpu_to_be32(512)
+    };
+
+    memcpy(&usb_bulk_buffer[0], &ret, sizeof(scsi_read_capacity10_response_t));
+    usb_send_bulk(&usb_bulk_buffer[0], sizeof(scsi_read_capacity10_response_t));
+
+    return 0;
+}
+
+uint8_t request_sense(msd_cbw_t *msd_cbw_data) {
+    (void)msd_cbw_data;
+
+    scsi_sense_response_t ret = {
+        .byte = { 0x70, 0, SCSI_SENSE_KEY_GOOD, 0,
+                0, 0, 0, 8,
+                0, 0 ,0 ,0,
+                SCSI_ASENSE_NO_ADDITIONAL_INFORMATION, SCSI_ASENSEQ_NO_QUALIFIER, 0, 0,
+                0, 0 }
+    };
+
+    memcpy(&usb_bulk_buffer[0], &ret, sizeof(scsi_sense_response_t));
+    usb_send_bulk(&usb_bulk_buffer[0], sizeof(scsi_sense_response_t));
+
+    return 0;
+}
+
+uint8_t mode_sense6(msd_cbw_t *msd_cbw_data) {
+     (void)msd_cbw_data;
+
+   scsi_mode_sense6_response_t ret = {
+        .byte = { 
+            sizeof(scsi_mode_sense6_response_t) - 1,
+            0,
+            0,
+            0 }
+    };
+
+    memcpy(&usb_bulk_buffer[0], &ret, sizeof(scsi_mode_sense6_response_t));
+    usb_send_bulk(&usb_bulk_buffer[0], sizeof(scsi_mode_sense6_response_t));
+
+    return 0;
+}
+
+static data_request_t decode_data_request(const uint8_t *cmd) {
+  data_request_t req;
+  uint32_t lba;
+  uint16_t blk;
+
+  memcpy(&lba, &cmd[2], sizeof(lba));
+  memcpy(&blk, &cmd[7], sizeof(blk));
+
+  req.first_lba = be32_to_cpu(lba);
+  req.blk_cnt = be16_to_cpu(blk);
+
+  return req;
+}
+
+uint8_t data_read10(msd_cbw_t *msd_cbw_data) {
+    data_request_t req = decode_data_request(msd_cbw_data->cmd_data);
+
+    for (size_t block_index = 0; block_index < req.blk_cnt; block_index++) {
+        read_block(req.first_lba + block_index, &usb_bulk_buffer[0], 1 /* n blocks */);
+        usb_send_bulk(&usb_bulk_buffer[0], 512);
+    }
+
+    return 0;
+}
+
+uint8_t data_write10(msd_cbw_t *msd_cbw_data) {
+    data_request_t req = decode_data_request(msd_cbw_data->cmd_data);
+
+    for (size_t block_index = 0; block_index < req.blk_cnt; block_index++) {
+        usb_receive_bulk(&usb_bulk_buffer[0], 512);
+        write_block(req.first_lba + block_index, &usb_bulk_buffer[0], 1 /* n blocks */);
+    }
+
+    return 0;
+}
+
+void scsi_command(msd_cbw_t *msd_cbw_data) {
+    uint8_t status = 1;
+
+    switch (msd_cbw_data->cmd_data[0]) {
+        case SCSI_CMD_INQUIRY:
+            if ((msd_cbw_data->cmd_data[1] & 0b1) && msd_cbw_data->cmd_data[2] == 0x80) {
+                status = handle_inquiry_serial_number(msd_cbw_data);
+            }
+            else if ((msd_cbw_data->cmd_data[1] & 0b11) || msd_cbw_data->cmd_data[2] != 0) {
+                status = 1;
+            }
+            else {
+                status = handle_inquiry(msd_cbw_data);
+            }
+
+            break;
+
+        case SCSI_CMD_REQUEST_SENSE:
+            status = request_sense(msd_cbw_data);
+            break;
+
+        case SCSI_CMD_READ_CAPACITY_10:
+            status = read_capacity10(msd_cbw_data);
+            break;
+
+        case SCSI_CMD_READ_10:
+            status = data_read10(msd_cbw_data);
+            break;
+
+        case SCSI_CMD_WRITE_10:
+            status = data_write10(msd_cbw_data);
+            break;
+
+        case SCSI_CMD_TEST_UNIT_READY:
+            status = 0;
+            break;
+
+        case SCSI_CMD_PREVENT_ALLOW_MEDIUM_REMOVAL:
+            status = 0;
+            break;
+
+        case SCSI_CMD_MODE_SENSE_6:
+            status = mode_sense6(msd_cbw_data);
+            break;
+        
+        case SCSI_CMD_READ_FORMAT_CAPACITIES:
+            status = read_format_capacities(msd_cbw_data);
+            break;
+        
+        case SCSI_CMD_VERIFY_10:
+            status = 0;
+            break;
+    }
+
+    usb_send_csw(msd_cbw_data, status);
+}

firmware/baseband/sd_over_usb/scsi.h

@@ -0,0 +1,197 @@
+/*
+ * Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
+ * Copyright (C) 2023 Bernd Herzog
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __SCSI_H__
+#define __SCSI_H__
+
+#include <stddef.h>
+#include <common/usb.h>
+#include <common/usb_request.h>
+#include <common/usb_standard_request.h>
+#include <hackrf_usb/usb_device.h>
+#include <hackrf_usb/usb_endpoint.h>
+#include <libopencm3/lpc43xx/m4/nvic.h>
+#include <libopencm3/lpc43xx/cgu.h>
+#include "platform_detect.h"
+#include "hackrf_core.h"
+#include "usb_bulk_buffer.h"
+
+#define MSD_CBW_SIGNATURE               0x43425355
+#define MSD_CSW_SIGNATURE               0x53425355
+
+#define SCSI_CMD_TEST_UNIT_READY                0x00
+#define SCSI_CMD_REQUEST_SENSE                  0x03
+#define SCSI_CMD_INQUIRY                        0x12
+#define SCSI_CMD_MODE_SENSE_6                   0x1A
+#define SCSI_CMD_START_STOP_UNIT                0x1B
+#define SCSI_CMD_SEND_DIAGNOSTIC                0x1D
+#define SCSI_CMD_PREVENT_ALLOW_MEDIUM_REMOVAL   0x1E
+#define SCSI_CMD_READ_CAPACITY_10               0x25
+#define SCSI_CMD_READ_FORMAT_CAPACITIES         0x23
+#define SCSI_CMD_READ_10                        0x28
+#define SCSI_CMD_WRITE_10                       0x2A
+#define SCSI_CMD_VERIFY_10                      0x2F
+
+#define SCSI_SENSE_KEY_GOOD                     0x00
+#define SCSI_SENSE_KEY_RECOVERED_ERROR          0x01
+#define SCSI_SENSE_KEY_NOT_READY                0x02
+#define SCSI_SENSE_KEY_MEDIUM_ERROR             0x03
+#define SCSI_SENSE_KEY_HARDWARE_ERROR           0x04
+#define SCSI_SENSE_KEY_ILLEGAL_REQUEST          0x05
+#define SCSI_SENSE_KEY_UNIT_ATTENTION           0x06
+#define SCSI_SENSE_KEY_DATA_PROTECT             0x07
+#define SCSI_SENSE_KEY_BLANK_CHECK              0x08
+#define SCSI_SENSE_KEY_VENDOR_SPECIFIC          0x09
+#define SCSI_SENSE_KEY_COPY_ABORTED             0x0A
+#define SCSI_SENSE_KEY_ABORTED_COMMAND          0x0B
+#define SCSI_SENSE_KEY_VOLUME_OVERFLOW          0x0D
+#define SCSI_SENSE_KEY_MISCOMPARE               0x0E
+
+#define SCSI_ASENSE_NO_ADDITIONAL_INFORMATION   0x00
+#define SCSI_ASENSE_LOGICAL_UNIT_NOT_READY      0x04
+#define SCSI_ASENSE_INVALID_FIELD_IN_CDB        0x24
+#define SCSI_ASENSE_NOT_READY_TO_READY_CHANGE   0x28
+#define SCSI_ASENSE_WRITE_PROTECTED             0x27
+#define SCSI_ASENSE_FORMAT_ERROR                0x31
+#define SCSI_ASENSE_INVALID_COMMAND             0x20
+#define SCSI_ASENSE_LBA_OUT_OF_RANGE            0x21
+#define SCSI_ASENSE_MEDIUM_NOT_PRESENT          0x3A
+
+#define SCSI_ASENSEQ_NO_QUALIFIER               0x00
+#define SCSI_ASENSEQ_FORMAT_COMMAND_FAILED      0x01
+#define SCSI_ASENSEQ_INIT_COMMAND_REQUIRED      0x02
+#define SCSI_ASENSEQ_OPERATION_IN_PROGRESS      0x07
+
+#define MSD_CBW_SIGNATURE               0x43425355
+#define MSD_CSW_SIGNATURE               0x53425355
+
+#define USB_TRANSFER_SIZE 0x2000
+
+typedef struct {
+  uint32_t  signature;
+  uint32_t  tag;
+  uint32_t  data_len;
+  uint8_t   flags;
+  uint8_t   lun;
+  uint8_t   cmd_len;
+  uint8_t   cmd_data[16];
+} __attribute__((packed)) msd_cbw_t;
+
+typedef struct {
+  uint8_t peripheral;
+  uint8_t removable;
+  uint8_t version;
+  uint8_t response_data_format;
+  uint8_t additional_length;
+  uint8_t sccstp;
+  uint8_t bqueetc;
+  uint8_t cmdque;
+  uint8_t vendorID[8];
+  uint8_t productID[16];
+  uint8_t productRev[4];
+} scsi_inquiry_response_t;
+
+typedef struct {
+  uint32_t  signature;
+  uint32_t  tag;
+  uint32_t  data_residue;
+  uint8_t   status;
+} __attribute__((packed)) msd_csw_t;
+
+typedef struct {
+  uint8_t header[4];
+  uint8_t blocknum[4];
+  uint8_t blocklen[4];
+} scsi_read_format_capacities_response_t;
+
+typedef struct {
+  uint32_t last_block_addr;
+  uint32_t block_size;
+} scsi_read_capacity10_response_t;
+
+typedef struct {
+  uint8_t byte[18];
+} scsi_sense_response_t;
+
+typedef struct {
+  uint8_t   byte[4];
+} scsi_mode_sense6_response_t;
+
+typedef struct {
+  uint32_t first_lba;
+  uint16_t blk_cnt;
+} data_request_t;
+
+typedef struct {
+  uint8_t peripheral;
+  uint8_t page_code;
+  uint8_t reserved;
+  uint8_t page_length;
+  uint8_t serialNumber[8];
+} scsi_unit_serial_number_inquiry_response_t;
+
+static inline uint16_t bswap_16(const uint16_t x)
+    __attribute__ ((warn_unused_result))
+    __attribute__ ((const))
+    __attribute__ ((always_inline));
+
+static inline uint16_t bswap_16(const uint16_t x) {
+    uint8_t                             tmp;
+    union { uint16_t x; uint8_t b[2]; } data;
+    
+    data.x    = x;
+    tmp       = data.b[0];
+    data.b[0] = data.b[1];
+    data.b[1] = tmp;
+    
+    return data.x;
+}
+
+static inline uint32_t bswap_32(const uint32_t x)
+    __attribute__ ((warn_unused_result))
+    __attribute__ ((const))
+    __attribute__ ((always_inline));
+
+static inline uint32_t bswap_32(const uint32_t x) {
+    uint8_t                             tmp;
+    union { uint32_t x; uint8_t b[4]; } data;
+    
+    data.x    = x;    
+    tmp       = data.b[0];
+    data.b[0] = data.b[3];
+    data.b[3] = tmp;
+    tmp       = data.b[1];
+    data.b[1] = data.b[2];
+    data.b[2] = tmp;
+    
+    return data.x;
+}
+
+#define be16_to_cpu(x)           bswap_16(x)
+#define be32_to_cpu(x)           bswap_32(x)
+
+#define cpu_to_be16(x)           bswap_16(x)
+#define cpu_to_be32(x)           bswap_32(x)
+
+void scsi_command(msd_cbw_t *msd_cbw_data);
+
+#endif /* __SCSI_H__ */

firmware/baseband/sd_over_usb/sd_over_usb.c

@@ -0,0 +1,132 @@
+/*
+ * Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
+ * Copyright (C) 2023 Bernd Herzog
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "sd_over_usb.h"
+#include "scsi.h"
+
+bool scsi_running = false;
+
+usb_request_status_t report_max_lun(
+	usb_endpoint_t* const endpoint,
+	const usb_transfer_stage_t stage)
+{
+	if (stage == USB_TRANSFER_STAGE_SETUP) {
+		endpoint->buffer[0] = 0;
+		usb_transfer_schedule_block(
+			endpoint->in,
+			&endpoint->buffer,
+			1,
+			NULL,
+			NULL);
+
+		usb_transfer_schedule_ack(endpoint->out);
+
+		scsi_running = true;
+	}
+	
+	return USB_REQUEST_STATUS_OK;
+}
+
+usb_request_status_t usb_class_request(usb_endpoint_t* const endpoint, const usb_transfer_stage_t stage) {
+	usb_request_status_t status = USB_REQUEST_STATUS_STALL;
+
+	volatile uint8_t request = endpoint->setup.request;
+
+	if (request == 0xFE)
+		return report_max_lun(endpoint, stage);
+
+	return status;
+}
+
+const usb_request_handlers_t usb_request_handlers = {
+	.standard = usb_standard_request,
+	.class = usb_class_request,
+	.vendor = 0,
+	.reserved = 0
+};
+
+void usb_configuration_changed(usb_device_t* const device) {
+	(void)device;
+
+	usb_endpoint_init(&usb_endpoint_bulk_in);
+	usb_endpoint_init(&usb_endpoint_bulk_out);
+}
+
+void start_usb(void) {
+	detect_hardware_platform();
+	pin_setup();
+	cpu_clock_init();
+
+	usb_set_configuration_changed_cb(usb_configuration_changed);
+	usb_peripheral_reset();
+
+	usb_device_init(0, &usb_device);
+
+	usb_queue_init(&usb_endpoint_control_out_queue);
+	usb_queue_init(&usb_endpoint_control_in_queue);
+	usb_queue_init(&usb_endpoint_bulk_out_queue);
+	usb_queue_init(&usb_endpoint_bulk_in_queue);
+
+	usb_endpoint_init(&usb_endpoint_control_out);
+	usb_endpoint_init(&usb_endpoint_control_in);
+
+	nvic_set_priority(NVIC_USB0_IRQ, 255);
+
+	usb_run(&usb_device);
+}
+
+void stop_usb(void) {
+	usb_peripheral_reset();
+}
+
+void irq_usb(void) {
+	usb0_isr();
+}
+
+volatile bool transfer_complete = false;
+void scsi_bulk_transfer_complete(void* user_data, unsigned int bytes_transferred)
+{
+	(void)user_data;
+	(void)bytes_transferred;
+
+	transfer_complete = true;
+}
+
+void usb_transfer(void) {
+	if (scsi_running) {
+		transfer_complete = false;
+		usb_transfer_schedule_block(
+			&usb_endpoint_bulk_out,
+			&usb_bulk_buffer[0x4000],
+			USB_TRANSFER_SIZE,
+			scsi_bulk_transfer_complete,
+			NULL);
+
+		while (!transfer_complete);
+
+		msd_cbw_t *msd_cbw_data = (msd_cbw_t *) &usb_bulk_buffer[0x4000];
+
+		if (msd_cbw_data->signature == MSD_CBW_SIGNATURE){
+			scsi_command(msd_cbw_data);
+		}
+	}
+}

firmware/baseband/sd_over_usb/sd_over_usb.h

@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
+ * Copyright (C) 2023 Bernd Herzog
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __USB_SD_OVER_USB_H__
+#define __USB_SD_OVER_USB_H__
+
+#include <stddef.h>
+#include <common/usb.h>
+#include <common/usb_request.h>
+#include <common/usb_standard_request.h>
+#include <hackrf_usb/usb_device.h>
+#include <hackrf_usb/usb_endpoint.h>
+#include <libopencm3/lpc43xx/m4/nvic.h>
+#include <libopencm3/lpc43xx/cgu.h>
+#include "platform_detect.h"
+#include "hackrf_core.h"
+#include "usb_bulk_buffer.h"
+
+void start_usb(void);
+void stop_usb(void);
+void irq_usb(void);
+void usb_transfer(void);
+
+#endif /* __USB_SD_OVER_USB_H__ */

firmware/baseband/sd_over_usb/usb_bulk_buffer.h

@@ -0,0 +1,39 @@
+/*
+ * Copyright 2012-2022 Great Scott Gadgets <info@greatscottgadgets.com>
+ * Copyright 2012 Jared Boone
+ * Copyright 2013 Benjamin Vernoux
+ *
+ * This file is part of HackRF.
+ *
+ * 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 __USB_BULK_BUFFER_H__
+#define __USB_BULK_BUFFER_H__
+
+#include <stdbool.h>
+#include <stdint.h>
+
+#define USB_BULK_BUFFER_SIZE 0x8000
+#define USB_BULK_BUFFER_MASK 0x7FFF
+
+/* Address of usb_bulk_buffer is set in ldscripts. If you change the name of this
+ * variable, it won't be where it needs to be in the processor's address space,
+ * unless you also adjust the ldscripts.
+ */
+extern uint8_t usb_bulk_buffer[USB_BULK_BUFFER_SIZE];
+
+#endif /*__USB_BULK_BUFFER_H__*/

firmware/baseband/sd_over_usb/usb_descriptor.c

@@ -0,0 +1,322 @@
+/*
+ * Copyright 2012-2022 Great Scott Gadgets <info@greatscottgadgets.com>
+ * Copyright 2012 Jared Boone
+ *
+ * This file is part of HackRF.
+ *
+ * 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 <stdint.h>
+
+#include "usb_type.h"
+#include "usb_descriptor.h"
+
+#define USB_VENDOR_ID (0x1D50)
+
+#ifdef HACKRF_ONE
+	#define USB_PRODUCT_ID (0x6089)
+#elif JAWBREAKER
+	#define USB_PRODUCT_ID (0x604B)
+#elif RAD1O
+	#define USB_PRODUCT_ID (0xCC15)
+#else
+	#define USB_PRODUCT_ID (0xFFFF)
+#endif
+
+#define USB_API_VERSION (0x0107)
+
+#define USB_WORD(x) (x & 0xFF), ((x >> 8) & 0xFF)
+
+#define USB_MAX_PACKET0        (64)
+#define USB_MAX_PACKET_BULK_FS (64)
+#define USB_MAX_PACKET_BULK_HS (512)
+
+#define USB_BULK_IN_EP_ADDR  (0x81)
+#define USB_BULK_OUT_EP_ADDR (0x02)
+
+#define USB_STRING_LANGID (0x0409)
+
+uint8_t usb_descriptor_device[] = {
+	18,                         // bLength
+	USB_DESCRIPTOR_TYPE_DEVICE, // bDescriptorType
+	USB_WORD(0x0200),           // bcdUSB
+	0x00,                       // bDeviceClass
+	0x00,                       // bDeviceSubClass
+	0x00,                       // bDeviceProtocol
+	USB_MAX_PACKET0,            // bMaxPacketSize0
+	USB_WORD(USB_VENDOR_ID),    // idVendor
+	USB_WORD(USB_PRODUCT_ID),   // idProduct
+	USB_WORD(USB_API_VERSION),  // bcdDevice
+	0x01,                       // iManufacturer
+	0x02,                       // iProduct
+	0x04,                       // iSerialNumber
+	0x01                        // bNumConfigurations
+};
+
+uint8_t usb_descriptor_device_qualifier[] = {
+	10,                                   // bLength
+	USB_DESCRIPTOR_TYPE_DEVICE_QUALIFIER, // bDescriptorType
+	USB_WORD(0x0200),                     // bcdUSB
+	0x00,                                 // bDeviceClass
+	0x00,                                 // bDeviceSubClass
+	0x00,                                 // bDeviceProtocol
+	64,                                   // bMaxPacketSize0
+	0x01,                                 // bNumOtherSpeedConfigurations
+	0x00                                  // bReserved
+};
+
+uint8_t usb_descriptor_configuration_full_speed[] = {
+	9,                                 // bLength
+	USB_DESCRIPTOR_TYPE_CONFIGURATION, // bDescriptorType
+	USB_WORD(32),                      // wTotalLength
+	0x01,                              // bNumInterfaces
+	0x01,                              // bConfigurationValue
+	0x00,                              // iConfiguration
+	0x80,                              // bmAttributes: USB-powered
+	250,                               // bMaxPower: 500mA
+
+	9,                             // bLength
+	USB_DESCRIPTOR_TYPE_INTERFACE, // bDescriptorType
+	0x00,                          // bInterfaceNumber
+	0x00,                          // bAlternateSetting
+	0x02,                          // bNumEndpoints
+	0x08,                          // bInterfaceClass: vendor-specific
+	0x06,                          // bInterfaceSubClass
+	0x50,                          // bInterfaceProtocol: vendor-specific
+	0x00,                          // iInterface
+
+	7,                                // bLength
+	USB_DESCRIPTOR_TYPE_ENDPOINT,     // bDescriptorType
+	USB_BULK_IN_EP_ADDR,              // bEndpointAddress
+	0x02,                             // bmAttributes: BULK
+	USB_WORD(USB_MAX_PACKET_BULK_FS), // wMaxPacketSize
+	0x00,                             // bInterval: no NAK
+
+	7,                                // bLength
+	USB_DESCRIPTOR_TYPE_ENDPOINT,     // bDescriptorType
+	USB_BULK_OUT_EP_ADDR,             // bEndpointAddress
+	0x02,                             // bmAttributes: BULK
+	USB_WORD(USB_MAX_PACKET_BULK_FS), // wMaxPacketSize
+	0x00,                             // bInterval: no NAK
+
+	0, // TERMINATOR
+};
+
+uint8_t usb_descriptor_configuration_high_speed[] = {
+	9,                                 // bLength
+	USB_DESCRIPTOR_TYPE_CONFIGURATION, // bDescriptorType
+	USB_WORD(32),                      // wTotalLength
+	0x01,                              // bNumInterfaces
+	0x01,                              // bConfigurationValue
+	0x00,                              // iConfiguration
+	0x80,                              // bmAttributes: USB-powered
+	250,                               // bMaxPower: 500mA
+
+	9,                             // bLength
+	USB_DESCRIPTOR_TYPE_INTERFACE, // bDescriptorType
+	0x00,                          // bInterfaceNumber
+	0x00,                          // bAlternateSetting
+	0x02,                          // bNumEndpoints
+	0x08,                          // bInterfaceClass: vendor-specific
+	0x06,                          // bInterfaceSubClass
+	0x50,                          // bInterfaceProtocol: vendor-specific
+	0x00,                          // iInterface
+
+	7,                                // bLength
+	USB_DESCRIPTOR_TYPE_ENDPOINT,     // bDescriptorType
+	USB_BULK_IN_EP_ADDR,              // bEndpointAddress
+	0x02,                             // bmAttributes: BULK
+	USB_WORD(USB_MAX_PACKET_BULK_HS), // wMaxPacketSize
+	0x00,                             // bInterval: no NAK
+
+	7,                                // bLength
+	USB_DESCRIPTOR_TYPE_ENDPOINT,     // bDescriptorType
+	USB_BULK_OUT_EP_ADDR,             // bEndpointAddress
+	0x02,                             // bmAttributes: BULK
+	USB_WORD(USB_MAX_PACKET_BULK_HS), // wMaxPacketSize
+	0x00,                             // bInterval: no NAK
+
+	0, // TERMINATOR
+};
+
+uint8_t usb_descriptor_string_languages[] = {
+	0x04,                        // bLength
+	USB_DESCRIPTOR_TYPE_STRING,  // bDescriptorType
+	USB_WORD(USB_STRING_LANGID), // wLANGID
+};
+
+// clang-format off
+uint8_t usb_descriptor_string_manufacturer[] = {
+	40,                         // bLength
+	USB_DESCRIPTOR_TYPE_STRING, // bDescriptorType
+	'G', 0x00,
+	'r', 0x00,
+	'e', 0x00,
+	'a', 0x00,
+	't', 0x00,
+	' ', 0x00,
+	'S', 0x00,
+	'c', 0x00,
+	'o', 0x00,
+	't', 0x00,
+	't', 0x00,
+	' ', 0x00,
+	'G', 0x00,
+	'a', 0x00,
+	'd', 0x00,
+	'g', 0x00,
+	'e', 0x00,
+	't', 0x00,
+	's', 0x00,
+};
+
+uint8_t usb_descriptor_string_product[] = {
+#ifdef HACKRF_ONE
+	43,                         // bLength
+	USB_DESCRIPTOR_TYPE_STRING, // bDescriptorType
+	'P', 0x00,
+	'o', 0x00,
+	'r', 0x00,
+	't', 0x00,
+	'a', 0x00,
+	'P', 0x00,
+	'a', 0x00,
+	'c', 0x00,
+	'k', 0x00,
+	' ', 0x00,
+
+	'M', 0x00,
+	'a', 0x00,
+	'y', 0x00,
+	'h', 0x00,
+	'e', 0x00,
+	'm', 0x00,
+
+#elif JAWBREAKER
+	36,                         // bLength
+	USB_DESCRIPTOR_TYPE_STRING, // bDescriptorType
+	'H', 0x00,
+	'a', 0x00,
+	'c', 0x00,
+	'k', 0x00,
+	'R', 0x00,
+	'F', 0x00,
+	' ', 0x00,
+	'J', 0x00,
+	'a', 0x00,
+	'w', 0x00,
+	'b', 0x00,
+	'r', 0x00,
+	'e', 0x00,
+	'a', 0x00,
+	'k', 0x00,
+	'e', 0x00,
+	'r', 0x00,
+#elif RAD1O
+	12,                         // bLength
+	USB_DESCRIPTOR_TYPE_STRING, // bDescriptorType
+	'r', 0x00,
+	'a', 0x00,
+	'd', 0x00,
+	'1', 0x00,
+	'o', 0x00,
+#else
+	14,                         // bLength
+	USB_DESCRIPTOR_TYPE_STRING, // bDescriptorType
+	'H', 0x00,
+	'a', 0x00,
+	'c', 0x00,
+	'k', 0x00,
+	'R', 0x00,
+	'F', 0x00,
+#endif
+};
+
+uint8_t usb_descriptor_string_config_description[] = {
+	24,                         // bLength
+	USB_DESCRIPTOR_TYPE_STRING, // bDescriptorType
+	'T', 0x00,
+	'r', 0x00,
+	'a', 0x00,
+	'n', 0x00,
+	's', 0x00,
+	'c', 0x00,
+	'e', 0x00,
+	'i', 0x00,
+	'v', 0x00,
+	'e', 0x00,
+	'r', 0x00,
+};
+
+#ifdef DFU_MODE
+uint8_t usb_descriptor_string_serial_number[] = {
+	30,                         // bLength
+	USB_DESCRIPTOR_TYPE_STRING, // bDescriptorType
+	'R', 0x00,
+	'u', 0x00,
+	'n', 0x00,
+	'n', 0x00,
+	'i', 0x00,
+	'n', 0x00,
+	'g', 0x00,
+	'F', 0x00,
+	'r', 0x00,
+	'o', 0x00,
+	'm', 0x00,
+	'R', 0x00,
+	'A', 0x00,
+	'M', 0x00,
+};
+#else
+uint8_t usb_descriptor_string_serial_number[USB_DESCRIPTOR_STRING_SERIAL_BUF_LEN];
+#endif
+
+uint8_t* usb_descriptor_strings[] = {
+	usb_descriptor_string_languages,
+	usb_descriptor_string_manufacturer,
+	usb_descriptor_string_product,
+	usb_descriptor_string_config_description,
+	usb_descriptor_string_serial_number,
+	0, // TERMINATOR
+};
+
+uint8_t wcid_string_descriptor[] = {
+	18,                          // bLength
+	USB_DESCRIPTOR_TYPE_STRING,  // bDescriptorType
+	'M', 0x00,
+	'S', 0x00,
+	'F', 0x00,
+	'T', 0x00,
+	'1', 0x00,
+	'0', 0x00,
+	'0', 0x00,
+	USB_WCID_VENDOR_REQ, // vendor request code for further descriptor
+	0x00
+};
+
+uint8_t wcid_feature_descriptor[] = {
+	0x28, 0x00, 0x00, 0x00,                  // bLength
+	USB_WORD(0x0100),                        // WCID version
+	USB_WORD(0x0004),                        // WICD descriptor index
+	0x01,                                    // bNumSections
+	0x00,0x00,0x00,0x00,0x00,0x00,0x00,      // Reserved
+	0x00,                                    // bInterfaceNumber
+	0x01,                                    // Reserved
+	'W', 'I', 'N', 'U', 'S', 'B', 0x00,0x00, // Compatible ID, padded with zeros
+	0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, // Sub-compatible ID
+	0x00,0x00,0x00,0x00,0x00,0x00            // Reserved
+};

firmware/baseband/sd_over_usb/usb_descriptor.h

@@ -0,0 +1,42 @@
+/*
+ * Copyright 2012-2022 Great Scott Gadgets <info@greatscottgadgets.com>
+ * Copyright 2012 Jared Boone
+ *
+ * This file is part of HackRF.
+ *
+ * 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 <stdint.h>
+
+extern uint8_t usb_descriptor_device[];
+extern uint8_t usb_descriptor_device_qualifier[];
+extern uint8_t usb_descriptor_configuration_full_speed[];
+extern uint8_t usb_descriptor_configuration_high_speed[];
+extern uint8_t usb_descriptor_string_languages[];
+extern uint8_t usb_descriptor_string_manufacturer[];
+extern uint8_t usb_descriptor_string_product[];
+
+#define USB_DESCRIPTOR_STRING_SERIAL_LEN 32
+#define USB_DESCRIPTOR_STRING_SERIAL_BUF_LEN \
+	(USB_DESCRIPTOR_STRING_SERIAL_LEN * 2 + 2) /* UTF-16LE */
+extern uint8_t usb_descriptor_string_serial_number[];
+
+extern uint8_t* usb_descriptor_strings[];
+
+#define USB_WCID_VENDOR_REQ 0x19
+extern uint8_t wcid_string_descriptor[];
+extern uint8_t wcid_feature_descriptor[];

firmware/baseband/w25q80bv.cpp

@@ -0,0 +1,165 @@
+/*
+ * Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
+ * Copyright (C) 2023 Bernd Herzog
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "w25q80bv.hpp"
+#include "debug.hpp"
+
+namespace w25q80bv {
+
+void disable_spifi(){
+	RESET_CTRL1 = RESET_CTRL1_SPIFI_RST;
+}
+
+void initialite_spi(){
+	palSetPad(W25Q80BV_SELECT_PORT, W25Q80BV_SELECT_PAD);
+	palOutputPad(W25Q80BV_SELECT_PORT, W25Q80BV_SELECT_PAD);
+
+	const uint32_t clock_prescale_rate = 2;
+	const uint32_t serial_clock_rate = 2;
+
+	SSP_CR1(SSP0_BASE) = 0;
+	SSP_CPSR(SSP0_BASE) = clock_prescale_rate;
+	SSP_CR0(SSP0_BASE) = (serial_clock_rate << 8) | SSP_DATA_8BITS;
+	SSP_CR1(SSP0_BASE) = SSP_ENABLE;
+}
+
+void setup() {
+	/* Init SPIFI GPIO to Normal GPIO */
+
+	MMIO32(PIN_GROUP3 + PIN3) = (SCU_SSP_IO | SCU_CONF_FUNCTION2);
+	MMIO32(PIN_GROUP3 + PIN4) = (SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
+	MMIO32(PIN_GROUP3 + PIN5) = (SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
+	MMIO32(PIN_GROUP3 + PIN6) = (SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
+	MMIO32(PIN_GROUP3 + PIN7) = (SCU_GPIO_FAST | SCU_CONF_FUNCTION4);
+	MMIO32(PIN_GROUP3 + PIN8) = (SCU_GPIO_FAST | SCU_CONF_FUNCTION4);
+
+	/* configure SSP pins */
+	MMIO32(SCU_SSP0_CIPO) =  (SCU_SSP_IO | SCU_CONF_FUNCTION5);
+	MMIO32(SCU_SSP0_COPI) =  (SCU_SSP_IO | SCU_CONF_FUNCTION5);
+	MMIO32(SCU_SSP0_SCK) = (SCU_SSP_IO | SCU_CONF_FUNCTION2);
+
+	/* configure GPIO pins */
+	MMIO32(SCU_FLASH_HOLD) = SCU_GPIO_FAST;
+	MMIO32(SCU_FLASH_WP) = SCU_GPIO_FAST;
+	MMIO32(SCU_SSP0_CS) = (SCU_GPIO_FAST | SCU_CONF_FUNCTION4);
+
+	//remove hardware write protection
+	/* drive CS, HOLD, and WP pins high */
+	palSetPad(W25Q80BV_HOLD_PORT, W25Q80BV_HOLD_PAD);
+	palSetPad(W25Q80BV_WP_PORT, W25Q80BV_WP_PAD);
+
+	/* Set GPIO pins as outputs. */
+	palOutputPad(W25Q80BV_HOLD_PORT, W25Q80BV_HOLD_PAD);
+	palOutputPad(W25Q80BV_WP_PORT, W25Q80BV_WP_PAD);
+}
+
+void wait_for_device() {
+	uint8_t device_id;
+	do {
+		device_id = get_device_id();
+	} while (device_id != W25Q80BV_DEVICE_ID_RES &&
+		 device_id != W25Q16DV_DEVICE_ID_RES);
+}
+
+void wait_not_busy() {
+	while (get_status() & W25Q80BV_STATUS_BUSY) {HALT_IF_DEBUGGING();}
+}
+
+void remove_write_protection() {
+	uint8_t data[] = {W25Q80BV_WRITE_ENABLE};
+	palClearPad(W25Q80BV_SELECT_PORT, W25Q80BV_SELECT_PAD);
+
+	for (size_t j = 0; j < 1; j++) {
+		data[j] = spi_ssp_transfer_word(data[j]);
+	}
+
+	palSetPad(W25Q80BV_SELECT_PORT, W25Q80BV_SELECT_PAD);
+
+	while (!(get_status() & W25Q80BV_STATUS_WEL)) {HALT_IF_DEBUGGING();}
+}
+
+uint32_t spi_ssp_transfer_word(const uint32_t data) {
+	while ((SSP_SR(SSP0_BASE) & SSP_SR_TNF) == 0) {HALT_IF_DEBUGGING();}
+	SSP_DR(SSP0_BASE) = data;
+	while (SSP_SR(SSP0_BASE) & SSP_SR_BSY) {HALT_IF_DEBUGGING();}
+	while ((SSP_SR(SSP0_BASE) & SSP_SR_RNE) == 0) {HALT_IF_DEBUGGING();}
+	return SSP_DR(SSP0_BASE);
+}
+
+uint8_t get_status() {
+	uint8_t data[] = {W25Q80BV_READ_STATUS1, 0xFF};
+	palClearPad(W25Q80BV_SELECT_PORT, W25Q80BV_SELECT_PAD);
+
+	for (size_t j = 0; j < 2; j++) {
+		data[j] = spi_ssp_transfer_word(data[j]);
+	}
+
+ 	palSetPad(W25Q80BV_SELECT_PORT, W25Q80BV_SELECT_PAD);
+
+	return data[1];
+}
+
+uint8_t get_device_id() {
+	uint8_t data[] = {W25Q80BV_DEVICE_ID, 0xFF, 0xFF, 0xFF, 0xFF};
+	palClearPad(W25Q80BV_SELECT_PORT, W25Q80BV_SELECT_PAD);
+
+	for (size_t j = 0; j < 5; j++) {
+		data[j] = spi_ssp_transfer_word(data[j]);
+	}
+
+	palSetPad(W25Q80BV_SELECT_PORT, W25Q80BV_SELECT_PAD);
+
+	return data[4];
+}
+
+void erase_chip() {
+	uint8_t data[] = {W25Q80BV_CHIP_ERASE};
+	palClearPad(W25Q80BV_SELECT_PORT, W25Q80BV_SELECT_PAD);
+
+	for (size_t j = 0; j < 1; j++) {
+		data[j] = spi_ssp_transfer_word(data[j]);
+	}
+
+	palSetPad(W25Q80BV_SELECT_PORT, W25Q80BV_SELECT_PAD);
+}
+
+void write(size_t page_index, uint8_t *data_buffer, size_t length) {
+	size_t page_len = 256U;
+	size_t addr = page_index * page_len;
+	uint8_t header[] = {
+		W25Q80BV_PAGE_PROGRAM,
+		(uint8_t)((addr & 0xFF0000) >> 16),
+		(uint8_t)((addr & 0xFF00) >> 8),
+		(uint8_t)(addr & 0xFF)
+	};
+
+	palClearPad(W25Q80BV_SELECT_PORT, W25Q80BV_SELECT_PAD);
+	for (size_t j = 0; j < 4; j++) {
+		header[j] = spi_ssp_transfer_word(header[j]);
+	}
+
+	for (size_t j = 0; j < length; j++) {
+		data_buffer[j] = spi_ssp_transfer_word(data_buffer[j]);
+	}
+	palSetPad(W25Q80BV_SELECT_PORT, W25Q80BV_SELECT_PAD);
+}
+}

firmware/baseband/w25q80bv.hpp

@@ -0,0 +1,140 @@
+/*
+ * Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
+ * Copyright (C) 2023 Bernd Herzog
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __W25Q80BV_H__
+#define __W25Q80BV_H__
+
+#include "ch.h"
+#include "hal.h"
+
+#define RGU_BASE 0x40053000
+#define RESET_CTRL1 MMIO32(RGU_BASE + 0x104)
+#define RESET_CTRL1_SPIFI_RST_SHIFT (21)
+#define RESET_CTRL1_SPIFI_RST (1 << RESET_CTRL1_SPIFI_RST_SHIFT)
+
+#define W25Q80BV_WRITE_ENABLE 0x06
+#define W25Q80BV_CHIP_ERASE   0xC7
+#define W25Q80BV_DEVICE_ID    0xAB
+#define W25Q80BV_PAGE_PROGRAM 0x02
+
+#define PERIPH_BASE_APB0 0x40080000
+#define SCU_BASE (PERIPH_BASE_APB0 + 0x06000)
+#define MMIO32(addr) (*(volatile uint32_t *)(addr))
+
+#define PIN_GROUP3 (SCU_BASE + 0x180)
+#define PIN3 0x00C
+#define PIN4 0x010
+#define PIN5 0x014
+#define PIN6 0x018
+#define PIN7 0x01C
+#define PIN8 0x020
+
+#define BIT0 (1<<0)
+#define BIT1 (1<<1)
+#define BIT2 (1<<2)
+#define BIT3 (1<<3)
+#define BIT4 (1<<4)
+#define BIT5 (1<<5)
+#define BIT6 (1<<6)
+#define BIT7 (1<<7)
+#define BIT8 (1<<8)
+
+#define SCU_CONF_EPUN_DIS_PULLUP (BIT4)
+#define SCU_CONF_EHS_FAST (BIT5)
+#define SCU_CONF_EZI_EN_IN_BUFFER (BIT6)
+#define SCU_CONF_ZIF_DIS_IN_GLITCH_FILT (BIT7)
+
+#define SCU_GPIO_FAST (SCU_CONF_EPUN_DIS_PULLUP | \
+            SCU_CONF_EHS_FAST | \
+            SCU_CONF_EZI_EN_IN_BUFFER | \
+            SCU_CONF_ZIF_DIS_IN_GLITCH_FILT)
+#define SCU_SSP_IO SCU_GPIO_FAST
+
+#define SCU_CONF_FUNCTION0 (0x0)
+#define SCU_CONF_FUNCTION2 (0x2)
+#define SCU_CONF_FUNCTION4 (0x4)
+#define SCU_CONF_FUNCTION5 (0x5)
+
+#define SCU_SSP0_CIPO (PIN_GROUP3 + PIN6)
+#define SCU_SSP0_COPI (PIN_GROUP3 + PIN7)
+#define SCU_SSP0_SCK (PIN_GROUP3 + PIN3)
+#define SCU_SSP0_CS (PIN_GROUP3 + PIN8)
+#define SCU_FLASH_HOLD (PIN_GROUP3 + PIN4)
+#define SCU_FLASH_WP (PIN_GROUP3 + PIN5)
+
+#define W25Q80BV_DEVICE_ID_RES 0x13 /* Expected device_id for W25Q80BV */
+#define W25Q16DV_DEVICE_ID_RES 0x14 /* Expected device_id for W25Q16DV */
+
+#define SSP_CR1(port) MMIO32(port + 0x004)
+#define PERIPH_BASE_APB0 0x40080000
+#define SSP0_BASE (PERIPH_BASE_APB0 + 0x03000)
+#define SSP_CPSR(port) MMIO32(port + 0x010)
+#define SSP_CR0(port) MMIO32(port + 0x000)
+#define SSP_ENABLE  BIT1
+#define SSP_DATA_8BITS  0x7
+
+#define palSetPad(port, pad) (LPC_GPIO->SET[(port)] = 1 << (pad))
+#define palClearPad(port, pad) (LPC_GPIO->CLR[(port)] = 1 << (pad))
+#define palOutputPad(port, pad) (LPC_GPIO->DIR[(port)] |= 1 << (pad))
+#define palTogglePad(port, pad) (LPC_GPIO->NOT[(port)] |= 1 << (pad))
+
+#define W25Q80BV_SELECT_PORT 5
+#define W25Q80BV_SELECT_PAD 11
+#define W25Q80BV_WP_PORT 1
+#define W25Q80BV_WP_PAD 15
+#define W25Q80BV_HOLD_PORT 1
+#define W25Q80BV_HOLD_PAD 14
+
+#define LED_PORT 2
+#define LEDRX_PAD 2
+#define LEDTX_PAD 8
+
+
+#define W25Q80BV_STATUS_BUSY 0x01
+#define W25Q80BV_STATUS_WEL  0x02
+#define W25Q80BV_READ_STATUS1 0x05
+#define W25Q80BV_READ_STATUS2 0x35
+
+#define PERIPH_BASE_APB0                0x40080000
+#define SSP0_BASE                       (PERIPH_BASE_APB0 + 0x03000)
+#define SSP_DR(port) MMIO32(port + 0x008)
+#define SSP_SR(port) MMIO32(port + 0x00C)
+
+#define SSP_SR_TNF                      BIT1
+#define SSP_SR_RNE                      BIT2
+#define SSP_SR_BSY                      BIT4
+
+namespace w25q80bv {
+    void disable_spifi();
+    uint8_t get_status();
+    void wait_for_device();
+    void wait_not_busy();
+    uint32_t spi_ssp_transfer_word(const uint32_t data);
+    void initialite_spi();
+    void setup();
+    void remove_write_protection();
+    uint8_t get_device_id();
+    void erase_chip();
+    void write(size_t page_index, uint8_t *data_buffer, size_t length);
+}
+
+#endif/*__W25Q80BV_H__*/

firmware/chibios-portapack/boards/PORTAPACK_APPLICATION/board.cpp

@@ -508,7 +508,7 @@ static const std::array<scu_setup_t, 26> pins_setup_portapack { {
     {  2,  1, scu_config_normal_drive_t { .mode=4, .epd=0, .epun=1, .ehs=0, .ezi=1, .zif=0 } }, /* U0_RXD: PortaPack P2_1/ADDR */
     {  2,  3, scu_config_normal_drive_t { .mode=4, .epd=0, .epun=1, .ehs=0, .ezi=1, .zif=0 } }, /* I2C1_SDA: PortaPack P2_3/LCD_TE */
     {  2,  4, scu_config_normal_drive_t { .mode=4, .epd=0, .epun=1, .ehs=0, .ezi=1, .zif=0 } }, /* I2C1_SCL: PortaPack P2_4/LCD_RDX */
-    {  2,  8, scu_config_normal_drive_t { .mode=4, .epd=0, .epun=1, .ehs=0, .ezi=0, .zif=0 } }, /* P2_8: 10K PD, BOOT2, DFU switch, PortaPack P2_8/<unused> */
+    {  2,  8, scu_config_normal_drive_t { .mode=1, .epd=0, .epun=0, .ehs=0, .ezi=1, .zif=1 } }, /* P2_8: 10K PD, BOOT2, DFU switch, PortaPack P2_8/<unused> */
     {  2,  9, scu_config_normal_drive_t { .mode=0, .epd=0, .epun=1, .ehs=0, .ezi=1, .zif=0 } }, /* P2_9: 10K PD, BOOT3, PortaPack P2_9/LCD_WRX */
     {  2, 13, scu_config_normal_drive_t { .mode=0, .epd=0, .epun=1, .ehs=0, .ezi=1, .zif=0 } }, /* P2_13: PortaPack P2_13/DIR */
     {  7,  0, scu_config_normal_drive_t { .mode=0, .epd=0, .epun=1, .ehs=0, .ezi=1, .zif=0 } }, /* GPIO3_8: PortaPack GPIO3_8(IO) */

firmware/chibios-portapack/os/ports/GCC/ARMCMx/LPC43xx_M4/ld/LPC43xx_M4.ld

@@ -25,8 +25,10 @@ MEMORY
 {
     flash (rx)  : org = 0x00000000, len = 32752	/* Local SRAM @ 0x10080000 */
     ram   (rwx) : org = 0x10000000, len = 96k   /* Local SRAM @ 0x10000000 */
+	ram_usb (rwx) : org = 0x20008000, len = 32K
 }
 
+usb_bulk_buffer         = ORIGIN(ram_usb);
 __ram_start__           = ORIGIN(ram);
 __ram_size__            = LENGTH(ram);
 __ram_end__             = __ram_start__ + __ram_size__;

firmware/common/cpld_update.cpp

@@ -33,7 +33,7 @@
 namespace portapack {
 namespace cpld {
 
-bool update_if_necessary(
+CpldUpdateStatus update_if_necessary(
 	const Config config
 ) {
 	jtag::GPIOTarget target {
@@ -51,7 +51,7 @@ bool update_if_necessary(
 
 	/* Run-Test/Idle */
 	if( !cpld.idcode_ok() ) {
-		return false;
+		return CpldUpdateStatus::Idcode_check_failed;
 	}
 
 	cpld.sample();
@@ -62,7 +62,7 @@ bool update_if_necessary(
 	 * in passive state.
 	 */
 	if( !cpld.silicon_id_ok() ) {
-		return false;
+		return CpldUpdateStatus::Silicon_id_check_failed;
 	}
 
 	/* Verify CPLD contents against current bitstream. */
@@ -86,7 +86,7 @@ bool update_if_necessary(
 		cpld.disable();
 	}
 
-	return ok;
+	return ok ? CpldUpdateStatus::Success : CpldUpdateStatus::Program_failed;
 }
 
 } /* namespace cpld */

firmware/common/cpld_update.hpp

@@ -27,7 +27,14 @@
 namespace portapack {
 namespace cpld {
 
-bool update_if_necessary(
+enum class CpldUpdateStatus {
+	Success = 0,
+	Idcode_check_failed = 1,
+	Silicon_id_check_failed = 2,
+	Program_failed = 3
+};
+
+CpldUpdateStatus update_if_necessary(
 	const Config config
 );
 

firmware/common/ert_packet.cpp

@@ -47,6 +47,9 @@ ID Packet::id() const {
 		const auto lsb = reader_.read(35, 24);
 		return (msb << 24) | lsb;
 	}
+	if( type() == Type::SCMPLUS ) {
+		return reader_.read(2 * 8, 32);
+	}
 	if( type() == Type::IDM ) {
 		return reader_.read(5 * 8, 32);
 	}
@@ -57,6 +60,9 @@ Consumption Packet::consumption() const {
 	if( type() == Type::SCM ) {
 		return reader_.read(11, 24);
 	}
+	if( type() == Type::SCMPLUS ) {
+		return reader_.read(6 * 8, 32);
+	}	
 	if( type() == Type::IDM ) {
 		return reader_.read(25 * 8, 32);
 	}
@@ -67,6 +73,9 @@ CommodityType Packet::commodity_type() const {
 	if( type() == Type::SCM ) {
 		return reader_.read(5, 4);
 	}
+	if( type() == Type::SCMPLUS ) {
+		return reader_.read(1 * 8 + 4, 4);
+	}	
 	if( type() == Type::IDM ) {
 		return reader_.read(4 * 8 + 4, 4);
 	}
@@ -80,7 +89,8 @@ FormattedSymbols Packet::symbols_formatted() const {
 bool Packet::crc_ok() const {
 	switch(type()) {
 	case Type::SCM:	return crc_ok_scm();
-	case Type::IDM:	return crc_ok_idm();
+	case Type::SCMPLUS:
+	case Type::IDM:	return crc_ok_ccitt();
 	default:		return false;
 	}
 }
@@ -95,7 +105,7 @@ bool Packet::crc_ok_scm() const {
 	return ert_bch.checksum() == 0x0000;
 }
 
-bool Packet::crc_ok_idm() const {
+bool Packet::crc_ok_ccitt() const {
 	CRC<16> ert_crc_ccitt { 0x1021, 0xffff, 0x1d0f };
 	for(size_t i=0; i<length(); i+=8) {
 		ert_crc_ccitt.process_byte(reader_.read(i, 8));

firmware/common/ert_packet.hpp

@@ -45,6 +45,7 @@ public:
 		Unknown = 0,
 		IDM = 1,
 		SCM = 2,
+		SCMPLUS = 3,
 	};
 
 	Packet(
@@ -80,7 +81,7 @@ private:
 	const Reader reader_;
 	const Type type_;
 
-	bool crc_ok_idm() const;
+	bool crc_ok_ccitt() const;
 	bool crc_ok_scm() const;
 };
 

firmware/common/performance_counter.cpp

@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2023 Bernd Herzog
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "performance_counter.hpp"
+#include "ch.h"
+
+uint8_t get_cpu_utilisation_in_percent() {
+	static systime_t last_time = 0;
+	static systime_t last_idle_ticks = 0;
+
+	auto now = chTimeNow();
+	auto idle_ticks = chThdGetTicks(chSysGetIdleThread());
+
+	if (last_time == 0) {
+		last_time = now;
+		last_idle_ticks = idle_ticks;
+
+		return 0;
+	}
+
+	int32_t time_elapsed = now - last_time;
+	int32_t idle_elapsed = idle_ticks - last_idle_ticks;
+
+	int32_t working_ticks = time_elapsed - idle_elapsed;
+
+	if (working_ticks < 0)
+		working_ticks = 0;
+
+	auto utilisation = working_ticks * 100 / time_elapsed;
+
+	last_time = now;
+	last_idle_ticks = idle_ticks;
+
+	if (utilisation > 100) {
+		return 100;
+	}
+
+    return (uint8_t) utilisation;
+}

firmware/common/performance_counter.hpp

@@ -0,0 +1,29 @@
+/*
+ * Copyright (C) 2023 Bernd Herzog
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __PERFORMANCE_COUNTER_H__
+#define __PERFORMANCE_COUNTER_H__
+
+#include <stdint.h>
+
+uint8_t get_cpu_utilisation_in_percent();
+
+#endif /* __PERFORMANCE_COUNTER_H__ */

firmware/common/portapack_hal.hpp

@@ -36,7 +36,7 @@ namespace portapack {
 constexpr GPIO gpio_io_stbx		= gpio[GPIO5_0];	/* P2_0 */
 constexpr GPIO gpio_addr		= gpio[GPIO5_1];	/* P2_1 */
 constexpr GPIO gpio_lcd_te		= gpio[GPIO5_3];	/* P2_3 */
-constexpr GPIO gpio_unused		= gpio[GPIO5_7];	/* P2_8 */
+constexpr GPIO gpio_dfu			= gpio[GPIO5_7];	/* P2_8 */
 constexpr GPIO gpio_lcd_rdx		= gpio[GPIO5_4];	/* P2_4 */
 constexpr GPIO gpio_lcd_wrx		= gpio[GPIO1_10];	/* P2_9 */
 constexpr GPIO gpio_dir			= gpio[GPIO1_13];	/* P2_13 */

firmware/common/portapack_io.cpp

@@ -110,7 +110,8 @@ uint32_t IO::io_update(const TouchPinsConfig write_value) {
 	}
 	gpio_addr.write(addr);
 
-	return switches_raw;
+	auto dfu_btn = portapack::io.dfu_read() & 0x01;
+	return (switches_raw & 0x7f) | (dfu_btn << 7);
 }
 
 }

firmware/common/portapack_io.hpp

@@ -214,6 +214,10 @@ public:
 		return gpio_rot_a.read();
 	}
 
+	uint32_t dfu_read() {
+		return gpio_rot_b.read();
+	}
+
 private:
 	const GPIO gpio_dir;
 	const GPIO gpio_lcd_rdx;