add external clock detect method (#3180)

* updated submodule

* usb_serial: populate usb_device before usb_run. Upstream now leaves the global usb_device zero-initialized and expects hackrf_usb.c to memcpy a per-board const into it. We don't link hackrf_usb.c, so do the memcpy here. Also flip control_in to enable_zlp=true to match the new endpoint API.

* baseband: derive IS_* board defines from BOARD. Upstream moved platform IS_* macros from platform_detect.h to cmake. Set them per BOARD here since we don't include platform-detect.cmake. Drop the duplicate clkin.c entry.

* sd_over_usb: drop duplicate driver objects, fix setup callback. Upstream now defines i2c0/i2c1, spi_bus_ssp0/1, sgpio_config and rf_path in the common driver files, so stop redefining them here and patch the runtime fields in pin_setup() instead. Update si5351c_reset_pll() call to the two-arg form. Replace the no-op transceiver_usb_setup_complete stub with one that delegates to usb_setup_complete.

* sd_over_usb: populate usb_device before usb_run. Same fix as the application side: memcpy a const template into usb_device before usb_device_init/usb_run, otherwise the descriptor pointer is NULL. Also pass enable_zlp=true on control_in to match the new endpoint API.

* fix unicode in comment

* remove lz4 bufs reservation in M0

.github/pull_request_template.md

@@ -64,4 +64,6 @@ If you are modifying an existing app, make sure the wiki page reflects your chan
 - [ ] Attached proof of testing on real PortaPack hardware *(or marked N/A as a trusted contributor)*
 - [ ] Attached proof of testing against a real emitter/receiver (if RF-related), or marked N/A with justification
 - [ ] I understand that by getting this PR merged, I am implicitly agreeing to create or update the corresponding wiki page (including a main-screen screenshot, description, controls, and limitations)
+- [ ] I own all rights to this code (i.e., all code contained in this PR), including compliant usage rights for third-party libraries, and I agree that this code is licensed under the license of this project (GPL-3.0). 
+- [ ] If any third-party libraries are used, I confirm that their licenses comply with the requirements for contributing to this repository.
 - [ ] Reviewed the [Contributing Guidelines](https://github.com/portapack-mayhem/mayhem-firmware/wiki/Contributing-Guidelines)

firmware/application/apps/ui_looking_glass_app.cpp

@@ -31,6 +31,7 @@
 using namespace portapack;
 
 namespace ui {
+
 void GlassView::focus() {
     range_presets.focus();
 }
@@ -44,7 +45,7 @@ GlassView::~GlassView() {
 
 // Function to map the value from one range to another
 int32_t GlassView::map(int32_t value, int32_t fromLow, int32_t fromHigh, int32_t toLow, int32_t toHigh) {
-    return toLow + (value - fromLow) * (toHigh - toLow) / (fromHigh - fromLow);
+    return toLow + ((value - fromLow) * (toHigh - toLow) + (fromHigh - fromLow) / 2) / (fromHigh - fromLow);
 }
 
 void GlassView::update_display_beep() {
@@ -128,8 +129,9 @@ void GlassView::reset_live_view() {
     max_freq_power = -1000;
 
     // Clear screen in peak mode.
+    const int spectrum_height = screen_height - spectrum_y;
     if (live_frequency_view == 2)
-        display.fill_rectangle({{0, 108 + 16}, {screen_width, screen_height - (108 + 16)}}, {0, 0, 0});
+        display.fill_rectangle({{0, spectrum_y}, {screen_width, spectrum_height}}, {0, 0, 0});
 }
 
 void GlassView::add_spectrum_pixel(uint8_t power) {
@@ -144,11 +146,9 @@ void GlassView::add_spectrum_pixel(uint8_t power) {
             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, screen_height - (108 + 16)};
-
+            constexpr int raw_min = 0.5f + rssi_sample_range * rssi_voltage_min / adc_voltage_max;
+            constexpr int raw_max = 0.5f + rssi_sample_range * rssi_voltage_max / adc_voltage_max;
+            const int spectrum_height = screen_height - spectrum_y;
             // drawing and keeping track of max freq
             for (uint16_t xpos = 0; xpos < screen_width; xpos++) {
                 // save max powerwull freq
@@ -156,14 +156,16 @@ void GlassView::add_spectrum_pixel(uint8_t power) {
                     max_freq_power = spectrum_data[xpos];
                     max_freq_hold = get_freq_from_bin_pos(xpos);
                 }
-                int16_t point = y_max_range.clip(((spectrum_data[xpos] - raw_min) * (screen_height - (108 + 16))) / raw_delta);
-                uint8_t color_gradient = (point * 255) / 212;
+                int16_t point = map(spectrum_data[xpos], 0, 255, 0, spectrum_height);
                 // clear if not in peak view
                 if (live_frequency_view != 2) {
-                    display.fill_rectangle({{xpos, 108 + 16}, {1, screen_height - point}}, {0, 0, 0});
+                    display.fill_rectangle({{xpos, spectrum_y}, {1, screen_height - point}}, {0, 0, 0});
                 }
-                display.fill_rectangle({{xpos, screen_height - point}, {1, point}}, {color_gradient, 0, uint8_t(255 - color_gradient)});
+                display.fill_rectangle({{xpos, screen_height - point}, {1, point}}, gradient.lut[spectrum_data[xpos]]);
             }
+            // indicate RSSI min and max power
+            display.fill_rectangle({{0, screen_height - map(raw_min, 0, 255, 0, spectrum_height)}, {screen_width, 1}}, -gradient.lut[raw_min]);
+            display.fill_rectangle({{0, screen_height - map(raw_max, 0, 255, 0, spectrum_height)}, {screen_width, 1}}, -gradient.lut[raw_max]);
             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));

firmware/application/apps/ui_looking_glass_app.hpp

@@ -104,6 +104,7 @@ class GlassView : public View {
     };
 
     void on_freqchg(int64_t freq);
+    // Function to map the value from one range to another
     int32_t map(int32_t value, int32_t fromLow, int32_t fromHigh, int32_t toLow, int32_t toHigh);
     std::vector<preset_entry> presets_db{};
     void manage_beep_audio();
@@ -164,6 +165,9 @@ class GlassView : public View {
     uint8_t offset = 0;
     uint8_t ignore_dc = 0;
 
+    // start of spectrum area
+    static constexpr int spectrum_y = (108 + 16);
+
     Labels labels{
         {{0, UI_POS_Y(0)}, "MIN:     MAX:     LNA   VGA  ", Theme::getInstance()->fg_light->foreground},
         {{0, 1 * 16}, "RANGE:       FILTER:     AMP:", Theme::getInstance()->fg_light->foreground},

firmware/application/baseband_api.cpp

@@ -432,6 +432,10 @@ void set_epirb_tx_config(EPIRBTXDataMessage& message) {
     send_message(&message);
 }
 
+void set_epirb_rx_config(EPIRBRXConfig& message) {
+    send_message(&message);
+}
+
 void set_p25tx_data(const uint8_t* dibits, uint16_t frame_length) {
     const size_t max_len = sizeof(shared_memory.bb_data.data);
     if (frame_length > max_len) frame_length = max_len;
@@ -443,6 +447,10 @@ void set_p25tx_data(const uint8_t* dibits, uint16_t frame_length) {
 
 static bool baseband_image_running = false;
 
+bool is_image_running() {
+    return baseband_image_running;
+}
+
 void run_image(const spi_flash::image_tag_t image_tag) {
     if (baseband_image_running) {
         chDbgPanic("BBRunning");

firmware/application/baseband_api.hpp

@@ -118,6 +118,7 @@ void set_bitstream_config(uint32_t deviation, uint8_t mode);
 void set_rtty_config(uint16_t baud, uint16_t shift, uint8_t* payload = nullptr, uint16_t payload_length = 0);  // baud*100
 void set_rtty_config(RTTYDataMessage& message);
 void set_epirb_tx_config(EPIRBTXDataMessage& message);
+void set_epirb_rx_config(EPIRBRXConfig& message);
 void set_p25tx_data(const uint8_t* dibits, uint16_t frame_length);
 
 void request_roger_beep();
@@ -125,6 +126,7 @@ void request_rssi_beep();
 void request_beep_stop();
 void request_audio_beep(uint32_t freq, uint32_t sample_rate, uint32_t duration_ms);
 
+bool is_image_running();
 void run_image(const portapack::spi_flash::image_tag_t image_tag);
 void run_prepared_image(const uint32_t m4_code);
 void shutdown();

firmware/application/clock_manager.cpp

@@ -424,17 +424,34 @@ using namespace hackrf::one;
 
 void ClockManager::init_clock_generator() {
 #ifdef PRALINE
-    // PRALINE: Configure clock input mux GPIO
-    // GPIO0_15 (clkin_ctrl) selects GP_CLKIN source:
-    //   0 = P1 connector (external)
-    //   1 = P22 (internal Si5351 CLK2)
-    constexpr GPIO gpio_clkin_ctrl = gpio[GPIO0_15];
-    gpio_clkin_ctrl.output();
-    gpio_clkin_ctrl.write(1);  // CLKIN_SIGNAL_P22 = 1 = internal Si5351 CLK2
+    // thoese PIN can review platform_scu file
+    // have many conflict and modify for clock init
+    // P2_10 -> GPIO0[14]  P1_CTRL0
+    LPC_SCU->SFSP[2][10] = 0xF0;
+    // P6_8  -> GPIO5[16]  P1_CTRL1
+    LPC_SCU->SFSP[6][8] = 0xF4;
+    // P6_9  -> GPIO3[5]   P1_CTRL2
+    LPC_SCU->SFSP[6][9] = 0xF0;
+    // P1_20 -> GPIO0[15]  CLKIN_CTRL
+    LPC_SCU->SFSP[1][20] = 0xF0;
+
+    constexpr GPIO gpio_p1_ctrl0 = gpio[GPIO0_14];
+    constexpr GPIO gpio_p1_ctrl1 = gpio[GPIO5_16];
+    constexpr GPIO gpio_p1_ctrl2 = gpio[GPIO3_5];
+    constexpr GPIO gpio_clkin_ctrl = gpio[GPIO0_15];
+
+    gpio_p1_ctrl0.output();
+    gpio_p1_ctrl1.output();
+    gpio_p1_ctrl2.output();
+    gpio_clkin_ctrl.output();
+
+    // P1 control = 100 and choose P22 clock external clock on portapack
+    gpio_p1_ctrl0.write(0);
+    gpio_p1_ctrl1.write(0);
+    gpio_p1_ctrl2.write(1);
+    gpio_clkin_ctrl.write(1);
+    chThdSleepMilliseconds(20);
 
-    // Also enable MCU clock gate (GPIO0_8)
-    gpio_r9_mcu_clk_en.output();
-    gpio_r9_mcu_clk_en.write(1);
 #else
     // HackRF One r9: GPIO0_8 (mcu_clk_en) gates Si5351 CLK2/CLK7 to GP_CLKIN
     if (hackrf_r9) {
@@ -458,10 +475,23 @@ void ClockManager::init_clock_generator() {
      * 4. Reset PLLs
      * 5. Enable outputs
      */
-    clock_generator.set_pll_input_sources(si5351a_pll_input_sources);
-
-    /* Skip MCU CLKIN setup and reference detection for PRALINE - not applicable */
-    reference = Reference{ReferenceSource::Xtal, 0};  // PLLA
+    // change there detect method same as hackrf one
+    // PLLA -> XTAL，PLLB -> CLKIN
+    clock_generator.set_pll_input_sources(si5351c_pll_input_sources);
+    // although the name a and the branch define CLK2 MCU CLOCK
+    // only use CLK2
+    auto si5351_clock_control_common = si5351a_clock_control_common;
+    constexpr size_t clock_generator_output_pro_mcu_clkin = 2;
+    // clk_src define CLKIN
+    clock_generator.set_clock_control(
+        clock_generator_output_pro_mcu_clkin,
+        si5351_clock_control_common[clock_generator_output_pro_mcu_clkin]
+            .clk_src(ClockControl::ClockSource::CLKIN)
+            .clk_pdn(ClockControl::ClockPowerDown::Power_On));
+    clock_generator.enable_output(clock_generator_output_pro_mcu_clkin);
+    chThdSleepMilliseconds(20);
+    // should be extern icon and 10MHz
+    reference = choose_reference();
 
     /* Clock control will be set AFTER multisynth configuration - see below */
 #else

firmware/application/external/battleship/ui_battleship.cpp

@@ -6,11 +6,9 @@
  * ------------------------------------------------------------
  */
 
+#pragma GCC push_options
+#pragma GCC optimize("Os")
 #include "ui_battleship.hpp"
-#include "portapack_shared_memory.hpp"
-#include "utility.hpp"
-#include "modems.hpp"
-#include "bch_code.hpp"
 
 using namespace portapack;
 using namespace modems;
@@ -28,7 +26,6 @@ BattleshipView::BattleshipView(NavigationView& nav)
     baseband::run_image(portapack::spi_flash::image_tag_pocsag2);
 
     add_children({&text_title, &text_subtitle,
-                  //&rect_radio_settings, &rect_audio_settings, &rect_team_selection,
                   &label_radio, &button_frequency,
                   &label_rf_amp, &checkbox_rf_amp,
                   &label_lna, &field_lna,
@@ -151,8 +148,6 @@ BattleshipView::BattleshipView(NavigationView& nav)
     field_tx_gain.set_parent_rect({185, 118, 32, 16});
     checkbox_sound.set_parent_rect({17, 187, 80, 24});
     field_volume.set_parent_rect({165, 187, 32, 16});
-    // button_red_team.set_parent_rect({25, 242, 85, 45});
-    // button_blue_team.set_parent_rect({130, 242, 85, 45});
 
     // Make menu elements focusable
     button_frequency.set_focusable(true);
@@ -196,34 +191,22 @@ void BattleshipView::init_game() {
 }
 
 void BattleshipView::show_hide_menu(bool menu_vis) {
-    text_title.hidden(!menu_vis);
-    text_subtitle.hidden(!menu_vis);
-    // rect_radio_settings.hidden(!menu_vis);    rect_audio_settings.hidden(!menu_vis);    rect_team_selection.hidden(!menu_vis);
-    label_radio.hidden(!menu_vis);
-    button_frequency.hidden(!menu_vis);
-    label_rf_amp.hidden(!menu_vis);
-    checkbox_rf_amp.hidden(!menu_vis);
-    label_lna.hidden(!menu_vis);
-    field_lna.hidden(!menu_vis);
-    label_vga.hidden(!menu_vis);
-    field_vga.hidden(!menu_vis);
-    label_tx_gain.hidden(!menu_vis);
-    field_tx_gain.hidden(!menu_vis);
-    label_audio.hidden(!menu_vis);
-    checkbox_sound.hidden(!menu_vis);
-    label_volume.hidden(!menu_vis);
-    field_volume.hidden(!menu_vis);
-    label_team.hidden(!menu_vis);
-    button_red_team.hidden(!menu_vis);
-    button_blue_team.hidden(!menu_vis);
-    rssi.hidden(menu_vis);
-    button_rotate.hidden(menu_vis);
-    button_place.hidden(menu_vis);
-    button_menu.hidden(menu_vis);
+    Widget* const menu_widgets[] = {
+        &text_title, &text_subtitle, &label_radio, &button_frequency,
+        &label_rf_amp, &checkbox_rf_amp, &label_lna, &field_lna,
+        &label_vga, &field_vga, &label_tx_gain, &field_tx_gain,
+        &label_audio, &checkbox_sound, &label_volume, &field_volume,
+        &label_team, &button_red_team, &button_blue_team};
+    for (auto* w : menu_widgets) {
+        w->hidden(!menu_vis);
+    }
+
+    Widget* const game_widgets[] = {
+        &rssi, &button_rotate, &button_place, &button_menu};
+    for (auto* w : game_widgets) {
+        w->hidden(menu_vis);
+    }
 
-    // button_rotate.set_focusable(false); //no need, since can't focus on hidden
-    // button_place.set_focusable(false);
-    // button_menu.set_focusable(false);
     set_dirty();
 }
 
@@ -340,40 +323,23 @@ void BattleshipView::paint(Painter& painter) {
     if (game_state == GameState::MENU) {
         draw_menu_screen(painter);
 
-        // Custom paint team buttons
-        if (!button_red_team.hidden()) {
-            Rect r = button_red_team.screen_rect();
-            painter.fill_rectangle(r, Color::dark_red());
-            painter.draw_rectangle(r, Color::red());
+        auto draw_team_btn = [&painter](Button& btn, Color bg, Color border, const char* name) {
+            if (btn.hidden()) return;
+            Rect r = btn.screen_rect();
+            painter.fill_rectangle(r, bg);
+            painter.draw_rectangle(r, border);
 
-            if (button_red_team.has_focus()) {
+            if (btn.has_focus()) {
                 painter.draw_rectangle({r.location().x() - 1, r.location().y() - 1, r.size().width() + 2, r.size().height() + 2}, Color::yellow());
             }
 
-            auto style_white = Style{
-                .font = ui::font::fixed_8x16,
-                .background = Color::dark_red(),
-                .foreground = Color::white()};
-            painter.draw_string(r.center() - Point(24, 16), style_white, "RED");
-            painter.draw_string(r.center() - Point(24, 0), style_white, "TEAM");
-        }
+            auto style = Style{.font = ui::font::fixed_8x16, .background = bg, .foreground = Color::white()};
+            painter.draw_string(r.center() - Point(24, 16), style, name);
+            painter.draw_string(r.center() - Point(24, 0), style, "TEAM");
+        };
 
-        if (!button_blue_team.hidden()) {
-            Rect r = button_blue_team.screen_rect();
-            painter.fill_rectangle(r, Color::dark_blue());
-            painter.draw_rectangle(r, Color::blue());
-
-            if (button_blue_team.has_focus()) {
-                painter.draw_rectangle({r.location().x() - 1, r.location().y() - 1, r.size().width() + 2, r.size().height() + 2}, Color::yellow());
-            }
-
-            auto style_white = Style{
-                .font = ui::font::fixed_8x16,
-                .background = Color::dark_blue(),
-                .foreground = Color::white()};
-            painter.draw_string(r.center() - Point(24, 16), style_white, "BLUE");
-            painter.draw_string(r.center() - Point(24, 0), style_white, "TEAM");
-        }
+        draw_team_btn(button_red_team, Color::dark_red(), Color::red(), "RED");
+        draw_team_btn(button_blue_team, Color::dark_blue(), Color::blue(), "BLUE");
 
         return;
     }
@@ -417,27 +383,25 @@ void BattleshipView::paint(Painter& painter) {
 void BattleshipView::draw_menu_screen(Painter& painter) {
     painter.draw_hline({12, 20 + 16}, screen_width - 24, Color::dark_cyan());
 
-    painter.fill_rectangle({13, 59, screen_width - 26, 116}, Color::dark_grey());
-    painter.draw_hline({12, 58}, screen_width - 24, Color::cyan());
-    painter.draw_hline({12, 157}, screen_width - 24, Color::cyan());
+    const struct {
+        Rect rect;
+        Point line1_pos;
+        Point line2_pos;
+    } boxes[] = {
+        {{13, 59, screen_width - 26, 116}, {12, 58}, {12, 157}},
+        {{13, 165, screen_width - 24, 57}, {12, 164}, {12, 223}},
+        {{13, 232, screen_width - 26, 67}, {12, 232}, {12, 300}}};
 
-    painter.fill_rectangle({13, 165, screen_width - 24, 57}, Color::dark_grey());
-    painter.draw_hline({12, 164}, screen_width - 24, Color::cyan());
-    painter.draw_hline({12, 223}, screen_width - 24, Color::cyan());
-
-    painter.fill_rectangle({13, 232, screen_width - 26, 67}, Color::dark_grey());
-    painter.draw_hline({12, 232}, screen_width - 24, Color::cyan());
-    painter.draw_hline({12, 300}, screen_width - 24, Color::cyan());
+    for (const auto& box : boxes) {
+        painter.fill_rectangle(box.rect, Color::dark_grey());
+        painter.draw_hline(box.line1_pos, screen_width - 24, Color::cyan());
+        painter.draw_hline(box.line2_pos, screen_width - 24, Color::cyan());
+    }
 
     // Radio status indicator
     Point indicator_pos{UI_POS_MAXWIDTH - 20, 59};
-    if (is_transmitting) {
-        painter.fill_rectangle({indicator_pos, {6, 6}}, Color::red());
-        painter.draw_rectangle({indicator_pos.x() - 1, indicator_pos.y() - 1, 8, 8}, Color::light_grey());
-    } else {
-        painter.fill_rectangle({indicator_pos, {6, 6}}, Color::green());
-        painter.draw_rectangle({indicator_pos.x() - 1, indicator_pos.y() - 1, 8, 8}, Color::light_grey());
-    }
+    painter.fill_rectangle({indicator_pos, {6, 6}}, is_transmitting ? Color::red() : Color::green());
+    painter.draw_rectangle({indicator_pos.x() - 1, indicator_pos.y() - 1, 8, 8}, Color::light_grey());
 }
 
 void BattleshipView::draw_grid(Painter& painter, uint16_t grid_x, uint16_t grid_y, const std::array<std::array<CellState, GRID_SIZE>, GRID_SIZE>& grid, bool show_ships, bool is_offense_grid) {
@@ -464,11 +428,14 @@ void BattleshipView::draw_cell(Painter& painter, uint16_t cell_x, uint16_t cell_
 
     if (game_state == GameState::PLACING_SHIPS && !is_offense_grid && current_ship_index < 5) {
         uint8_t ship_size = my_ships[current_ship_index].size();
+        uint8_t dx = placing_horizontal ? 1 : 0;
+        uint8_t dy = placing_horizontal ? 0 : 1;
+        uint16_t grid_x = (cell_x - 1) / CELL_SIZE;
+        uint16_t grid_y = (cell_y - GRID_OFFSET_Y - 6) / CELL_SIZE;
+
         for (uint8_t i = 0; i < ship_size; i++) {
-            uint16_t preview_x = placing_horizontal ? cursor_x + i : cursor_x;
-            uint16_t preview_y = placing_horizontal ? cursor_y : cursor_y + i;
-            uint16_t grid_x = (cell_x - 1) / CELL_SIZE;
-            uint16_t grid_y = (cell_y - GRID_OFFSET_Y - 6) / CELL_SIZE;
+            uint16_t preview_x = cursor_x + (i * dx);
+            uint16_t preview_y = cursor_y + (i * dy);
             if (grid_x == preview_x && grid_y == preview_y && preview_x < GRID_SIZE && preview_y < GRID_SIZE) {
                 return;
             }
@@ -540,9 +507,12 @@ void BattleshipView::draw_ship_preview(Painter& painter) {
     uint8_t size = ship.size();
     bool can_place = can_place_ship(cursor_x, cursor_y, size, placing_horizontal);
 
+    uint8_t dx = placing_horizontal ? 1 : 0;
+    uint8_t dy = placing_horizontal ? 0 : 1;
+
     for (uint8_t i = 0; i < size; i++) {
-        uint8_t x = placing_horizontal ? cursor_x + i : cursor_x;
-        uint8_t y = placing_horizontal ? cursor_y : cursor_y + i;
+        uint8_t x = cursor_x + (i * dx);
+        uint8_t y = cursor_y + (i * dy);
 
         if (x < GRID_SIZE && y < GRID_SIZE) {
             uint16_t cell_x = GRID_OFFSET_X + x * CELL_SIZE + 1;
@@ -561,18 +531,21 @@ bool BattleshipView::can_place_ship(uint8_t x, uint8_t y, uint8_t size, bool hor
         return false;
     }
 
+    uint8_t dx = horizontal ? 1 : 0;
+    uint8_t dy = horizontal ? 0 : 1;
+
     for (uint8_t i = 0; i < size; i++) {
-        uint8_t check_x = horizontal ? x + i : x;
-        uint8_t check_y = horizontal ? y : y + i;
+        uint8_t check_x = x + (i * dx);
+        uint8_t check_y = y + (i * dy);
 
         if (my_grid[check_y][check_x] != CellState::EMPTY) {
             return false;
         }
 
-        for (int dy = -1; dy <= 1; dy++) {
-            for (int dx = -1; dx <= 1; dx++) {
-                int adj_x = check_x + dx;
-                int adj_y = check_y + dy;
+        for (int ddy = -1; ddy <= 1; ddy++) {
+            for (int ddx = -1; ddx <= 1; ddx++) {
+                int adj_x = check_x + ddx;
+                int adj_y = check_y + ddy;
 
                 if (adj_x >= 0 && adj_x < GRID_SIZE &&
                     adj_y >= 0 && adj_y < GRID_SIZE) {
@@ -604,10 +577,11 @@ void BattleshipView::place_ship() {
     ship.horizontal = placing_horizontal;
     ship.placed = true;
 
+    uint8_t dx = placing_horizontal ? 1 : 0;
+    uint8_t dy = placing_horizontal ? 0 : 1;
+
     for (uint8_t i = 0; i < size; i++) {
-        uint8_t x = placing_horizontal ? cursor_x + i : cursor_x;
-        uint8_t y = placing_horizontal ? cursor_y : cursor_y + i;
-        my_grid[y][x] = CellState::SHIP;
+        my_grid[cursor_y + (i * dy)][cursor_x + (i * dx)] = CellState::SHIP;
     }
 
     current_ship_index++;
@@ -644,9 +618,14 @@ void BattleshipView::place_ship() {
 void BattleshipView::send_message(const GameMessage& msg) {
     static const char* msg_strings[] = {"READY", "SHOT:", "HIT:", "MISS:", "SUNK:", "WIN"};
 
-    std::string message = msg_strings[static_cast<int>(msg.type)];
+    std::string message;
+    message.reserve(16);
+    message.append(msg_strings[static_cast<int>(msg.type)]);
+
     if (msg.type != MessageType::READY && msg.type != MessageType::WIN) {
-        message += to_string_dec_uint(msg.x) + "," + to_string_dec_uint(msg.y);
+        message.append(to_string_dec_uint(msg.x));
+        message.append(",");
+        message.append(to_string_dec_uint(msg.y));
     }
 
     configure_radio_tx();
@@ -836,11 +815,12 @@ void BattleshipView::process_shot(uint8_t x, uint8_t y) {
             if (!ship.placed) continue;
 
             bool hit_this_ship = false;
-            for (uint8_t i = 0; i < ship.size(); i++) {
-                uint8_t check_x = ship.horizontal ? ship.x + i : ship.x;
-                uint8_t check_y = ship.horizontal ? ship.y : ship.y + i;
 
-                if (check_x == x && check_y == y) {
+            uint8_t dx = ship.horizontal ? 1 : 0;
+            uint8_t dy = ship.horizontal ? 0 : 1;
+
+            for (uint8_t i = 0; i < ship.size(); i++) {
+                if ((ship.x + i * dx) == x && (ship.y + i * dy) == y) {
                     hit_this_ship = true;
                     ship.hits++;
                     break;
@@ -852,9 +832,7 @@ void BattleshipView::process_shot(uint8_t x, uint8_t y) {
                 ships_remaining--;
 
                 for (uint8_t i = 0; i < ship.size(); i++) {
-                    uint8_t sunk_x = ship.horizontal ? ship.x + i : ship.x;
-                    uint8_t sunk_y = ship.horizontal ? ship.y : ship.y + i;
-                    my_grid[sunk_y][sunk_x] = CellState::SUNK;
+                    my_grid[ship.y + (i * dy)][ship.x + (i * dx)] = CellState::SUNK;
                 }
                 break;
             }
@@ -887,7 +865,12 @@ void BattleshipView::process_shot(uint8_t x, uint8_t y) {
 }
 
 void BattleshipView::update_score() {
-    current_score = "W:" + to_string_dec_uint(wins) + " L:" + to_string_dec_uint(losses);
+    current_score.clear();
+    current_score.reserve(16);
+    current_score.append("W:");
+    current_score.append(to_string_dec_uint(wins));
+    current_score.append(" L:");
+    current_score.append(to_string_dec_uint(losses));
 }
 
 bool BattleshipView::on_touch(const TouchEvent event) {
@@ -980,3 +963,4 @@ bool BattleshipView::on_key(const KeyEvent key) {
 }
 
 }  // namespace ui::external_app::battleship
+#pragma GCC pop_options

firmware/application/external/battleship/ui_battleship.hpp

@@ -9,6 +9,11 @@
 #ifndef __UI_BATTLESHIP_H__
 #define __UI_BATTLESHIP_H__
 
+#include "portapack_shared_memory.hpp"
+#include "utility.hpp"
+#include "modems.hpp"
+#include "bch_code.hpp"
+
 #include "ui.hpp"
 #include "ui_navigation.hpp"
 #include "ui_receiver.hpp"

firmware/application/external/epirb_rx/beacon.cpp

@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2026 Frederic BORRY - ADRASEC 31
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "beacon.hpp"
+#include <cstdio>
+#include "string_format.hpp"
+
+// Some but not all methods of beacon class have been externalized in .cpp file
+// This has been done to try and optimize application size by preventing the compiler to inline methods
+namespace ui::external_app::epirb_rx {
+
+size_t Beacon::formatSummary(char* buffer, bool with_time) {
+    size_t result = 0;
+    if (with_time) {
+        result += formatTime(buffer);
+        buffer[result++] = '-';
+    }
+    result += sprintf((buffer + result), "%4s-%5s-", shortId().c_str(), getType());
+    if (location.isUnknown()) {
+        result += sprintf((buffer + result), "      ");
+    } else {
+        result += location.toString((buffer + result), Location::LocationFormat::MAIDENHEAD_LOCATOR);
+    }
+    result += sprintf((buffer + result), "[%s%s%s]", isFrameValid() ? (bch1Corrected || bch2Corrected) ? STR_COLOR_YELLOW : STR_COLOR_GREEN : STR_COLOR_RED, getSatus().c_str(), STR_COLOR_WHITE);
+    return result;
+}
+
+bool Beacon::isFrameValid() {
+    return isBch1Valid() && ((!hasBch2) || isBch2Valid()) && (!isEmpty);
+}
+
+std::string Beacon::shortId() {
+    std::string result = std::string(hexId);
+    return (result.size() >= 4) ? result.substr(0, 4) : result;
+}
+
+size_t Beacon::formatTime(char* buffer) {
+    return sprintf(buffer, "%02d:%02d:%02d", date.hour(), date.minute(), date.second());
+}
+
+}  // namespace ui::external_app::epirb_rx

firmware/application/external/epirb_rx/beacon.hpp

@@ -0,0 +1,856 @@
+/*
+ * Copyright (C) 2026 Frederic BORRY - ADRASEC 31
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __BEACON_RX_H__
+#define __BEACON_RX_H__
+
+#include "country.hpp"
+#include "location.hpp"
+#include "rtc_time.hpp"
+#include "resources.hpp"
+
+namespace ui::external_app::epirb_rx {
+
+// Size for beacon frame buffer
+#define BEACON_DATA_SIZE 18  // Max 144 bits => 18 bytes
+
+// Constants for BCH control code calculation
+#define BCH_21_POLYNOMIAL 0b1001101101100111100011UL
+#define BCH_21_POLY_LENGTH 22
+#define BCH_12_POLYNOMIAL 0b1010100111001UL
+#define BCH_12_POLY_LENGTH 13
+
+// See content of sdcard/EPIRB/RES/BEACON.RES
+#define ADDITIONAL_DATA_RESOURCE_START 25
+#define LONG_ADDITIONAL_DATA_RESOURCE_START 33
+#define EMERGENCY_RESOURCE_START 39
+#define EMERGENCY_OTHER_RESOURCE_START 49
+#define AUX_DEVICE_RESOURCE_START 53
+
+/**
+ * This is the main class for beaon handling
+ */
+class Beacon {
+   public:
+    // Real beacon or test beacon ?
+    enum class FrameMode { NORMAL,
+                           SELF_TEST,
+                           UNKNOWN };
+    // Type of main location device
+    enum class MainLocatingDevice { UNDEFINED,
+                                    INTERNAL_NAV,
+                                    EXTERNAL_NAV };
+    // Type of aux location device
+    enum class AuxLocatingDevice { UNDEFINED,
+                                   NONE,
+                                   NONE_OR_OTHER,
+                                   OTHER,
+                                   MHZ121_5,
+                                   SART };
+
+    // Protcol type
+    enum class ProtocolType {
+        UNKNOWN,
+        USER,
+        STANDARD_LOCATION,
+        NATIONAL_LOCATION,
+        RLS_LOCATION,
+        ELT_DT_LOCATION,
+        SPARE
+    };
+
+    // Protocol
+    enum class Protocol {
+        USER_EPIRB_MARITIME,
+        USER_EPIRB_RADIO,
+        USER_ELT,
+        USER_SERIAL,
+        USER_TEST,
+        USER_ORB,
+        USER_NAT,
+        USER_2G,
+        STD_EPIRB,
+        STD_ELT_24,
+        STD_ELT_SERIAL,
+        STD_ELT_AIRCRAFT,
+        STD_EPIRB_SERIAL,
+        STD_PLB_SERIAL,
+        STD_SHIP,
+        STD_TEST,
+        NAT_ELT,
+        NAT_EPIRB,
+        NAT_PLB,
+        NAT_TEST,
+        RLS,
+        ELT_DT,
+        SPARE,
+        UNKNOWN
+    };
+
+#define UNKNOWN_LABEL "Unk."
+
+    // Returns true for User protocol beacons
+    bool protocolIsUser() { return (protocolType == ProtocolType::USER); };
+    // Returns true for National Location protocol beacons
+    bool protocolIsNational() { return (protocolType == ProtocolType::NATIONAL_LOCATION); };
+    // Returns true for Standard Location protocol beacons
+    bool protocolIsStandard() { return (protocolType == ProtocolType::STANDARD_LOCATION); };
+    // Returns true for RLS location protocol beacons
+    bool protocolIsRls() { return (protocolType == ProtocolType::RLS_LOCATION); };
+    // Returns true for RLS or ELT Location protocol beacons
+    bool protocolIsRlsOrElt() { return (protocolType == ProtocolType::RLS_LOCATION || protocolType == ProtocolType::ELT_DT_LOCATION); };
+    // Returns true for unknown protocol beacons
+    bool protocolIsUnknown() { return (protocolType == ProtocolType::UNKNOWN); };
+
+    // Returns the protocol name
+    const char* getProtocolName() {
+        switch (protocolType) {
+            case ProtocolType::STANDARD_LOCATION:
+                return "Standard";
+            case ProtocolType::NATIONAL_LOCATION:
+                return "National";
+            case ProtocolType::RLS_LOCATION:
+                return "RLS";
+            case ProtocolType::ELT_DT_LOCATION:
+                return "ELT(DT)";
+            case ProtocolType::USER:
+                return longFrame ? "User Location" : "User";
+            case ProtocolType::SPARE:
+                return "Spare";
+            default:
+                return UNKNOWN_LABEL;
+        }
+    }
+
+    // Get protocol type for this beacon
+    ProtocolType getProtocolType() {
+        switch (protocol) {
+            case Protocol::USER_EPIRB_MARITIME:
+            case Protocol::USER_EPIRB_RADIO:
+            case Protocol::USER_ELT:
+            case Protocol::USER_SERIAL:
+            case Protocol::USER_TEST:
+            case Protocol::USER_ORB:
+            case Protocol::USER_NAT:
+            case Protocol::USER_2G:
+                return ProtocolType::USER;
+            case Protocol::STD_EPIRB:
+            case Protocol::STD_ELT_24:
+            case Protocol::STD_ELT_SERIAL:
+            case Protocol::STD_ELT_AIRCRAFT:
+            case Protocol::STD_PLB_SERIAL:
+            case Protocol::STD_SHIP:
+            case Protocol::STD_TEST:
+                return ProtocolType::STANDARD_LOCATION;
+            case Protocol::NAT_ELT:
+            case Protocol::NAT_EPIRB:
+            case Protocol::NAT_PLB:
+            case Protocol::NAT_TEST:
+                return ProtocolType::NATIONAL_LOCATION;
+            case Protocol::RLS:
+                return ProtocolType::RLS_LOCATION;
+            case Protocol::ELT_DT:
+                return ProtocolType::ELT_DT_LOCATION;
+            case Protocol::SPARE:
+                return ProtocolType::SPARE;
+            case Protocol::UNKNOWN:
+            default:
+                return ProtocolType::UNKNOWN;
+        }
+    }
+
+    // True for long frames, fals for short grames
+    bool longFrame{true};
+    // True if protocol flag is set for this frame
+    bool protocolFlag{false};
+    // Frame mode (Test or Real)
+    FrameMode frameMode{FrameMode::UNKNOWN};
+    // Main location device
+    MainLocatingDevice mainLocatingDevice{MainLocatingDevice::UNDEFINED};
+    // Axiliary location device
+    AuxLocatingDevice auxLocatingDevice{AuxLocatingDevice::UNDEFINED};
+    // Protocol code for this beacon
+    long protocolCode{0};
+    // Protocol of this beacon
+    Protocol protocol{Protocol::UNKNOWN};
+    // Protocol type of this beacon
+    ProtocolType protocolType{ProtocolType::UNKNOWN};
+    // Country of this beacon
+    Country country{};
+    // Frame data
+    uint8_t frame[BEACON_DATA_SIZE];
+    // Location of this beacon
+    Location location{};
+    // HexId of this beacon
+    uint64_t identifier{0};
+    // Date of reception of this beacon
+    rtc::RTC date{};
+    // Trus if this beacon has additional data
+    bool hasAdditionalData{false};
+    // The additional data tring
+    char additionalData[48]{0};
+    // True if this beacon has a serial number
+    bool hasSerialNumber{false};
+    // The serial number string
+    char serialNumber[32]{0};
+    // Beacon's Hex ID string
+    char hexId[32]{0};
+    // BCH1 code value
+    uint32_t bch1{};
+    // BCH1 calculated value
+    uint32_t computedBch1{};
+    // True if data has been corrected to match BCH1 code
+    bool bch1Corrected{false};
+    // True if this beacon has a BCH2 correction code
+    bool hasBch2{false};
+    // BCH2 code value
+    uint32_t bch2{};
+    // BCH2 calculated value
+    uint32_t computedBch2{};
+    // True if data has been corrected to match BCH2 code
+    bool bch2Corrected{false};
+    // True if this beacon is empty (not initialized)
+    bool isEmpty{true};
+    // True if thsi beacon contains emergency data
+    bool hasEmergency{false};
+    // True if emenrgency data is automatic for this beacon
+    bool isAutoamticEmergency{false};
+    // True if this beacon is a Maritime beacon
+    bool isMaritime{false};
+    // Emergency type string
+    char emergencyType[32]{0};
+
+    /**
+     * Returns the requested bits in this beacon's frame
+     */
+    uint64_t getBits(int startBit, int endBit) {
+        uint64_t result = 0;
+        startBit--;
+        int numBits = endBit - startBit;
+        const uint8_t* pData = &(frame[startBit / 8]);
+        uint8_t b = *pData;
+        int bitOffset = 7 - (startBit % 8);
+        for (int i = 0; i < numBits; ++i) {
+            result <<= 1;
+            result |= ((b >> bitOffset) & 0x01);
+            if (--bitOffset < 0) {
+                b = *(++pData);
+                bitOffset = 7;
+            }
+        }
+        return result;
+    }
+
+    /**
+     * Compute a BCH control code for the given bits and poly
+     */
+    uint64_t computeBCH(int startBit, int endBit, unsigned long poly, int polyLength) {
+        int dataLength = endBit - startBit + 1;
+        int totalLength = dataLength + polyLength - 1;
+        uint64_t result = getBits(startBit, startBit + polyLength - 1);
+        for (int i = polyLength; i <= totalLength; i++) {
+            bool firstBit = result >> (polyLength - 1);
+            if (firstBit) result = result ^ poly;
+            if (i < totalLength) {
+                result = result << 1;
+                if (i < dataLength) result |= getBits(startBit + i, startBit + i);
+            }
+        }
+        return result;
+    }
+
+    /**
+     * Compute BCH1 code
+     */
+    uint64_t computeBCH1() { return computeBCH(25, 85, BCH_21_POLYNOMIAL, BCH_21_POLY_LENGTH); }
+    /**
+     * Compute BCH2 code
+     */
+    uint64_t computeBCH2() { return computeBCH(107, 132, BCH_12_POLYNOMIAL, BCH_12_POLY_LENGTH); }
+
+    /**
+     * Convert this frame's data to an hex string
+     */
+    static size_t toHexString(char* buffer, uint8_t* frame, bool withSpace, int start, int end) {
+        size_t result = 0;
+        for (uint8_t i = start; i < end; i++) {
+            if (withSpace && i > start) buffer[result++] = ' ';
+            result += sprintf((buffer + result), "%02X", frame[i]);
+        }
+        buffer[result] = 0;
+        return result;
+    }
+
+    Beacon() {}
+    Beacon(const Beacon& other) = delete;
+    Beacon& operator=(const Beacon& other) = delete;
+
+    /**
+     * Set the data for this Beacon and parse it
+     */
+    void setFrame(const uint8_t* frameBuffer) {
+        frameMode = FrameMode::UNKNOWN;
+        mainLocatingDevice = MainLocatingDevice::UNDEFINED;
+        auxLocatingDevice = AuxLocatingDevice::UNDEFINED;
+        protocolCode = 0;
+        protocol = Protocol::UNKNOWN;
+        protocolType = ProtocolType::UNKNOWN;
+        country.code = 0;
+        country.alphaCode[0] = 0;
+        country.shortName[0] = 0;
+        location.clear();
+        identifier = 0;
+        hasAdditionalData = false;
+        additionalData[0] = 0;
+        hasSerialNumber = false;
+        serialNumber[0] = 0;
+        hexId[0] = 0;
+        bch1 = 0;
+        computedBch1 = 0;
+        hasBch2 = false;
+        bch1Corrected = false;
+        bch2 = 0;
+        computedBch2 = 0;
+        bch2Corrected = false;
+        isEmpty = true;
+        hasEmergency = false;
+        isAutoamticEmergency = false;
+        isMaritime = false;
+        emergencyType[0] = 0;
+        std::memcpy(frame, (const void*)frameBuffer, BEACON_DATA_SIZE);
+        parseFrame();
+    }
+
+    /**
+     * Flip the specified bit in this beacon's data
+     */
+    void flipBit(int bit) {
+        int byteIdx = (bit - 1) / 8;
+        int bitIdx = 7 - ((bit - 1) % 8);
+        frame[byteIdx] ^= (1 << bitIdx);
+    }
+
+    /**
+     * Single bit error correction to match BCH1 or BCH2 code
+     */
+    void simpleCorrection(bool isBCH1) {
+        for (int i = (isBCH1 ? 25 : 107); i <= (isBCH1 ? 85 : 132); i++) {
+            flipBit(i);
+            if ((isBCH1 ? (computeBCH1() == bch1) : (computeBCH2() == bch2))) {
+                if (isBCH1) {
+                    computedBch1 = bch1;
+                    bch1Corrected = true;
+                } else {
+                    computedBch2 = bch2;
+                    bch2Corrected = true;
+                }
+                break;
+            }
+            flipBit(i);  // Restore bit value
+        }
+    }
+
+    /**
+     * Return the string representation of this beacon's type
+     */
+    const char* getType() {
+        if ((protocol == Protocol::USER_EPIRB_MARITIME) || (protocol == Protocol::USER_EPIRB_RADIO) || (protocol == Protocol::STD_EPIRB) || (protocol == Protocol::STD_EPIRB_SERIAL) || (protocol == Protocol::NAT_EPIRB)) return "EPIRB";
+        if ((protocol == Protocol::USER_ELT) || (protocol == Protocol::STD_ELT_24) || (protocol == Protocol::STD_ELT_SERIAL) || (protocol == Protocol::STD_ELT_AIRCRAFT) || (protocol == Protocol::NAT_ELT) || (protocol == Protocol::ELT_DT)) return "ELT";
+        if ((protocol == Protocol::STD_PLB_SERIAL) || (protocol == Protocol::NAT_PLB)) return "PLB";
+        if ((protocol == Protocol::USER_TEST) || (protocol == Protocol::STD_TEST) || (protocol == Protocol::NAT_TEST)) return "TEST";
+        if (protocol == Protocol::USER_SERIAL) return "SRIAL";
+        if (protocol == Protocol::USER_ORB) return "ORB";
+        if (protocol == Protocol::USER_NAT) return "NAT";
+        if (protocol == Protocol::USER_2G) return "2G";
+        if (protocol == Protocol::STD_SHIP) return "SHIP";
+        if (protocol == Protocol::RLS) return "RLS";
+        if (protocol == Protocol::SPARE) return "SPARE";
+        return UNKNOWN_LABEL;
+    }
+
+    /**
+     * Returns true if this beacon has a main location device
+     */
+    bool hasMainLocatingDevice() { return (mainLocatingDevice != MainLocatingDevice::UNDEFINED); }
+
+    /**
+     * Returns this beacon's main location device string representation
+     */
+    const char* getMainLocatingDeviceName() {
+        if (mainLocatingDevice == MainLocatingDevice::EXTERNAL_NAV) return "Exernal";
+        if (mainLocatingDevice == MainLocatingDevice::INTERNAL_NAV) return "Internal";
+        return UNKNOWN_LABEL;
+    }
+
+    /**
+     * Returns true if this beacon has a main location device
+     */
+    bool hasAuxLocatingDevice() { return (auxLocatingDevice != AuxLocatingDevice::UNDEFINED); }
+
+    /**
+     * Returns true if this beacon has a main location device
+     */
+    const char* getAuxLocatingDeviceName() {
+        return ResourceManager::get_beacon_resource(AUX_DEVICE_RESOURCE_START + ((int)auxLocatingDevice));
+    }
+
+    /**
+     * Set the serial number for this beacon
+     */
+    void setSerialNumber(uint32_t serial) {
+        sprintf(serialNumber, "%ld (0x%08lX)", serial, serial);
+    }
+
+    /**
+     * Returns true if BCH1 code is valid
+     */
+    bool isBch1Valid() { return (bch1 == computedBch1); }
+
+    /**
+     * Returns true if BCH2 code is valid
+     */
+
+    bool isBch2Valid() { return (bch2 == computedBch2); }
+
+    /**
+     * Returns true if frame is valid
+     */
+    bool isFrameValid();
+
+    /**
+     * Returns true if frame is orbito
+     */
+    bool isOrbito() { return (protocol == Protocol::USER_ORB); }
+
+    /**
+     * Write the hex preresentation of this frame in the provided buffer
+     */
+    size_t hexString(char* buffer, bool withHeader) {
+        return toHexString(buffer, frame, false, (withHeader ? 0 : 3), (longFrame ? 18 : 14));
+    }
+
+    /**
+     * Returns the short ID for this beacon
+     */
+    std::string shortId();
+
+    /**
+     * Returns the string representation of the status of this frame
+     */
+    std::string getSatus() {
+        if (isFrameValid())
+            return "OK";
+        else
+            return "KO";
+    }
+
+    /**
+     * Format this beacon's time
+     */
+    size_t formatTime(char* buffer);
+
+    /**
+     * Format this beacon's summary
+     */
+    size_t formatSummary(char* buffer, bool with_time);
+
+   private:
+    /* Baudot code matrix */
+    static constexpr char BAUDOT_CODE[64] = {' ', '5', ' ', '9', ' ', ' ', ' ', ' ', ' ', ' ', '4', ' ', '8', '0', ' ', ' ',
+                                             '3', ' ', ' ', ' ', ' ', '6', ' ', '/', '-', '2', ' ', ' ', '7', '1', ' ', ' ',
+                                             ' ', 'T', ' ', 'O', ' ', 'H', 'N', 'M', ' ', 'L', 'R', 'G', 'I', 'P', 'C', 'V',
+                                             'E', 'Z', 'D', 'B', 'S', 'Y', 'F', 'X', 'A', 'W', 'J', ' ', 'U', 'Q', 'K', '\0'};
+
+    /**
+     * Parse this beacon's protocol
+     */
+    void parseProtocol() {
+        protocolFlag = getBits(26, 26);
+        if (protocolFlag)
+            protocolCode = getBits(37, 39);
+        else
+            protocolCode = getBits(37, 40);
+
+        if (!longFrame || protocolFlag == 1) {
+            switch (protocolCode) {
+                case 0b000:
+                    protocol = Protocol::USER_ORB;
+                    break;
+                case 0b001:
+                    protocol = Protocol::USER_ELT;
+                    break;
+                case 0b010:
+                    protocol = Protocol::USER_EPIRB_MARITIME;
+                    isMaritime = true;
+                    break;
+                case 0b011:
+                    protocol = Protocol::USER_SERIAL;
+                    break;
+                case 0b100:
+                    protocol = Protocol::USER_NAT;
+                    break;
+                case 0b101:
+                    protocol = Protocol::USER_2G;
+                    break;
+                case 0b110:
+                    protocol = Protocol::USER_EPIRB_RADIO;
+                    isMaritime = true;
+                    break;
+                case 0b111:
+                    protocol = Protocol::USER_TEST;
+                    break;
+                default:
+                    protocol = Protocol::UNKNOWN;
+            }
+        } else {
+            switch (protocolCode) {
+                case 0b0010:
+                    protocol = Protocol::STD_EPIRB;
+                    break;
+                case 0b0011:
+                    protocol = Protocol::STD_ELT_24;
+                    break;
+                case 0b0100:
+                    protocol = Protocol::STD_ELT_SERIAL;
+                    break;
+                case 0b0101:
+                    protocol = Protocol::STD_ELT_AIRCRAFT;
+                    break;
+                case 0b0110:
+                    protocol = Protocol::STD_EPIRB_SERIAL;
+                    break;
+                case 0b0111:
+                    protocol = Protocol::STD_PLB_SERIAL;
+                    break;
+                case 0b1000:
+                    protocol = Protocol::NAT_ELT;
+                    break;
+                case 0b1001:
+                    protocol = Protocol::ELT_DT;
+                    break;
+                case 0b1010:
+                    protocol = Protocol::NAT_EPIRB;
+                    break;
+                case 0b1011:
+                    protocol = Protocol::NAT_PLB;
+                    break;
+                case 0b1100:
+                    protocol = Protocol::STD_SHIP;
+                    break;
+                case 0b1101:
+                    protocol = Protocol::RLS;
+                    break;
+                case 0b1110:
+                    protocol = Protocol::STD_TEST;
+                    break;
+                case 0b1111:
+                    protocol = Protocol::NAT_TEST;
+                    break;
+                default:
+                    protocol = Protocol::UNKNOWN;
+            }
+        }
+    }
+
+    /**
+     * Parse this beacon's additional data
+     */
+    void parseAdditionalData() {
+        hasAdditionalData = false;
+        hasSerialNumber = false;
+        if (protocolFlag) {
+            if (protocolCode == 0b011) {
+                uint8_t serialUserProtocol = getBits(40, 42);
+                hasAdditionalData = true;
+                switch (serialUserProtocol) {
+                    case 0b100:
+                    case 0b010:
+                        isMaritime = true;
+                        // fallthrough
+                    case 0b000:
+                    case 0b001:
+                    case 0b011:
+                    case 0b110:
+                        strcpy(additionalData, ResourceManager::get_beacon_resource(ADDITIONAL_DATA_RESOURCE_START + serialUserProtocol));
+                        break;
+                    default:
+                        hasAdditionalData = false;
+                }
+                hasSerialNumber = true;
+                setSerialNumber((serialUserProtocol == 0b011) ? getBits(44, 67) : (serialUserProtocol == 0b001) ? getBits(62, 73)
+                                                                                                                : getBits(44, 63));
+            }
+            if (!longFrame) {
+                hasEmergency = getBits(107, 107);
+                if (hasEmergency) {
+                    isAutoamticEmergency = getBits(108, 108);
+                    if (isMaritime) {
+                        uint8_t emmergency = getBits(109, 112);
+                        switch (emmergency) {
+                            case 0b0001:
+                            case 0b0010:
+                            case 0b0011:
+                            case 0b0100:
+                            case 0b0101:
+                            case 0b0110:
+                            case 0b0111:
+                            case 0b1000:
+                                strcpy(emergencyType, ResourceManager::get_beacon_resource(EMERGENCY_RESOURCE_START + emmergency));
+                                break;
+                            default:
+                                strcpy(emergencyType, ResourceManager::get_beacon_resource(EMERGENCY_RESOURCE_START));
+                        }
+                    } else {
+                        bool fire = getBits(109, 109);
+                        bool med = getBits(110, 110);
+                        bool disabled = getBits(111, 111);
+                        char* emmergency_pointer = emergencyType;
+                        if (fire) emmergency_pointer += sprintf(emmergency_pointer, "%s", ResourceManager::get_beacon_resource(EMERGENCY_OTHER_RESOURCE_START));
+                        if (med) {
+                            if (fire) emmergency_pointer += sprintf(emmergency_pointer, "%c", '+');
+                            emmergency_pointer += sprintf(emmergency_pointer, "%s", ResourceManager::get_beacon_resource(EMERGENCY_OTHER_RESOURCE_START + 1));
+                        }
+                        if (disabled) {
+                            if (fire || med) emmergency_pointer += sprintf(emmergency_pointer, "%c", '+');
+                            sprintf(emmergency_pointer, "%s", ResourceManager::get_beacon_resource(EMERGENCY_OTHER_RESOURCE_START + 2));
+                        }
+                    }
+                }
+            }
+        } else if (longFrame) {
+            switch (protocolCode) {
+                case 0b0010:
+                    hasSerialNumber = true;
+                    setSerialNumber(getBits(61, 64));
+                    break;
+                case 0b1100: {
+                    hasAdditionalData = true;
+                    uint32_t mmsi = getBits(41, 60);
+                    sprintf(additionalData, ResourceManager::get_beacon_resource(LONG_ADDITIONAL_DATA_RESOURCE_START), mmsi, mmsi);
+                } break;
+                case 0b0011: {
+                    hasAdditionalData = true;
+                    hasSerialNumber = true;
+                    setSerialNumber(getBits(41, 64));
+                    strcpy(additionalData, ResourceManager::get_beacon_resource(LONG_ADDITIONAL_DATA_RESOURCE_START + 1));
+                } break;
+                case 0b0100:
+                case 0b0110:
+                case 0b0111: {
+                    hasAdditionalData = true;
+                    hasSerialNumber = true;
+                    uint32_t csTaNumber = getBits(41, 50);
+                    sprintf(additionalData, ResourceManager::get_beacon_resource(LONG_ADDITIONAL_DATA_RESOURCE_START + 2), csTaNumber);
+                    setSerialNumber(getBits(51, 64));
+                } break;
+                case 0b0101: {
+                    hasAdditionalData = true;
+                    hasSerialNumber = true;
+                    uint32_t data = getBits(41, 45);
+                    char char1 = BAUDOT_CODE[data + 32];
+                    data = getBits(46, 50);
+                    char char2 = BAUDOT_CODE[data + 32];
+                    data = getBits(51, 55);
+                    char char3 = BAUDOT_CODE[data + 32];
+                    sprintf(additionalData, ResourceManager::get_beacon_resource(LONG_ADDITIONAL_DATA_RESOURCE_START + 3), char1, char2, char3);
+                    setSerialNumber(getBits(56, 64));
+                } break;
+                case 0b1000:
+                case 0b1010:
+                case 0b1011:
+                case 0b1111: {
+                    hasSerialNumber = true;
+                    hasAdditionalData = true;
+                    setSerialNumber(getBits(41, 58));
+                    uint32_t natNum = getBits(127, 132);
+                    sprintf(additionalData, ResourceManager::get_beacon_resource(LONG_ADDITIONAL_DATA_RESOURCE_START + 4), natNum);
+                } break;
+            }
+        }
+    }
+
+    /**
+     * Parse this beacon's locating device
+     */
+    void parseLocatingDevices() {
+        bool mainLoc;
+        if (protocolIsStandard() || protocolIsNational()) {
+            mainLoc = getBits(111, 111);
+            mainLocatingDevice = mainLoc ? MainLocatingDevice::INTERNAL_NAV : MainLocatingDevice::EXTERNAL_NAV;
+        } else if (protocolIsUser() || protocolIsRls()) {
+            mainLoc = getBits(107, 107);
+            mainLocatingDevice = mainLoc ? MainLocatingDevice::INTERNAL_NAV : MainLocatingDevice::EXTERNAL_NAV;
+        }
+        if (protocolIsStandard() || protocolIsNational()) {
+            auxLocatingDevice = getBits(112, 112) ? AuxLocatingDevice::MHZ121_5 : AuxLocatingDevice::NONE_OR_OTHER;
+        } else if (protocolIsRls()) {
+            auxLocatingDevice = getBits(108, 108) ? AuxLocatingDevice::MHZ121_5 : AuxLocatingDevice::NONE_OR_OTHER;
+        } else if (protocolIsUser() && protocolCode != 0b100) {
+            uint8_t aux = getBits(84, 85);
+            if (aux == 0b00)
+                auxLocatingDevice = AuxLocatingDevice::NONE;
+            else if (aux == 0b01)
+                auxLocatingDevice = AuxLocatingDevice::MHZ121_5;
+            else if (aux == 0b10)
+                auxLocatingDevice = AuxLocatingDevice::SART;
+            else
+                auxLocatingDevice = AuxLocatingDevice::OTHER;
+        }
+    }
+
+    /**
+     * Parse this beacon's frame data
+     */
+    void parseFrame() {
+        long latofmin, latofsec, lonofmin, lonofsec;
+        bool latoffset, lonoffset;
+
+        longFrame = getBits(25, 25);
+        parseProtocol();
+        protocolType = getProtocolType();
+        CountryManager::get_country(getBits(27, 36), country);
+
+        if (frame[2] == 0xD0)
+            frameMode = FrameMode::SELF_TEST;
+        else if (frame[2] == 0x2F)
+            frameMode = FrameMode::NORMAL;
+        else
+            frameMode = FrameMode::UNKNOWN;
+
+        if (longFrame) {
+            if (protocolIsUser() && !isOrbito()) {
+                location.latitude.orientation = (frame[13] & 0x10) >> 4;
+                location.latitude.degrees = ((frame[13] & 0x0F) << 3 | (frame[14] & 0xE0) >> 5);
+                location.latitude.minutes = ((frame[14] & 0x1E) >> 1) * 4;
+                location.longitude.orientation = (frame[14] & 0x01);
+                location.longitude.degrees = (frame[15]);
+                location.longitude.minutes = ((frame[16] & 0xF0) >> 4) * 4;
+            } else if (protocolIsNational()) {
+                latoffset = (frame[14] & 0x80) >> 7;
+                location.latitude.orientation = (frame[7] & 0x20) >> 5;
+                location.latitude.degrees = ((frame[7] & 0x1F) << 2 | (frame[8] & 0xC0) >> 6);
+                location.latitude.minutes = ((frame[8] & 0x3E) >> 1) * 2;
+                latofmin = (frame[14] & 0x60) >> 5;
+                latofsec = ((frame[14] & 0x1E) >> 1) * 4;
+                location.latitude.apply_offset(latoffset, latofmin, latofsec);
+                lonoffset = (frame[14] & 0x01);
+                location.longitude.orientation = (frame[8] & 0x01);
+                location.longitude.degrees = (frame[9]);
+                location.longitude.minutes = ((frame[10] & 0xF8) >> 3) * 2;
+                lonofmin = (frame[15] & 0xC0) >> 6;
+                lonofsec = ((frame[15] & 0x3C) >> 2) * 4;
+                location.longitude.apply_offset(lonoffset, lonofmin, lonofsec);
+            } else if (protocolIsStandard()) {
+                latoffset = (frame[14] & 0x80) >> 7;
+                location.latitude.orientation = (frame[8] & 0x80) >> 7;
+                location.latitude.degrees = (frame[8] & 0x7F);
+                location.latitude.minutes = ((frame[9] & 0xC0) >> 6) * 15;
+                latofmin = (frame[14] & 0x7C) >> 2;
+                latofsec = ((frame[14] & 0x03) << 2 | (frame[15] & 0xC0) >> 6) * 4;
+                location.latitude.apply_offset(latoffset, latofmin, latofsec);
+                lonoffset = (frame[15] & 0x20) >> 5;
+                location.longitude.orientation = (frame[9] & 0x20) >> 5;
+                location.longitude.degrees = ((frame[9] & 0x1F) << 3 | (frame[10] & 0xE0) >> 5);
+                location.longitude.minutes = ((frame[10] & 0x18) >> 3) * 15;
+                lonofmin = (frame[15] & 0x1F);
+                lonofsec = ((frame[16] & 0xF0) >> 4) * 4;
+                location.longitude.apply_offset(lonoffset, lonofmin, lonofsec);
+            } else if (protocolIsRlsOrElt()) {
+                latoffset = (frame[14] & 0x20) >> 5;
+                location.latitude.orientation = (frame[8] & 0x20) >> 5;
+                location.latitude.degrees = ((frame[8] & 0x1F) << 2) | ((frame[9] & 0xC0) >> 6);
+                location.latitude.minutes = ((frame[9] & 0x20) >> 5) * 30;
+                latofmin = (frame[14] & 0x1E) >> 1;
+                latofsec = ((frame[14] & 0x01) << 3 | (frame[15] & 0xE0) >> 5) * 4;
+                location.latitude.apply_offset(latoffset, latofmin, latofsec);
+                lonoffset = (frame[15] & 0x10) >> 4;
+                location.longitude.orientation = (frame[9] & 0x10) >> 4;
+                location.longitude.degrees = ((frame[9] & 0x0F) << 4 | (frame[10] & 0xF0) >> 4);
+                location.longitude.minutes = ((frame[10] & 0x08) >> 3) * 30;
+                lonofmin = (frame[15] & 0x0F);
+                lonofsec = ((frame[16] & 0xF0) >> 4) * 4;
+                location.longitude.apply_offset(lonoffset, lonofmin, lonofsec);
+            }
+        }
+
+        parseAdditionalData();
+        parseLocatingDevices();
+
+        identifier = getBits(26, 85);
+
+        uint32_t hexIdHigh = (uint32_t)(identifier >> 32);
+        uint32_t hexIdLow = (uint32_t)identifier;
+
+        if (protocolIsStandard()) {
+            // default value of bits 65 to 74 = 0 111111111 / default value of bits 75 to 85 = 0 1111111111
+            hexIdLow &= 0b11111111'11100000'00000000'00000000;
+            hexIdLow |= 0b00000000'00001111'11111011'11111111;
+        } else if (protocolIsNational()) {
+            // default value of bits 59 to 71 = 0 1111111 00000 / default value of bits 72 to 85 = 0 11111111 00000
+            hexIdLow &= 0b11111000'00000000'00000000'00000000;
+            hexIdLow |= 0b00000011'11111000'00011111'11100000;
+        } else if (protocolIsRlsOrElt()) {
+            // default value of bits 67 to 75 = 0 11111111 / default value of bits 76 to 85 = 0 111111111
+            hexIdLow &= 0b11111111'11111000'00000000'00000000;
+            hexIdLow |= 0b00000000'00000011'11111101'11111111;
+        }
+        std::sprintf(hexId, "%07lX%08lX", hexIdHigh, hexIdLow);
+
+        if (isOrbito() && !longFrame) {
+            isEmpty = true;
+            for (size_t i = 3; i < BEACON_DATA_SIZE; i++) {
+                if (frame[i] != 0) {
+                    isEmpty = false;
+                    break;
+                }
+            }
+        } else
+            isEmpty = false;
+
+        bch1 = getBits(86, 106);
+        computedBch1 = computeBCH1();
+        // Try and correct single bit error on  BCH1 (bits 25-85)
+        if (computedBch1 != bch1) {
+            simpleCorrection(true);
+        }
+
+        hasBch2 = longFrame && !isOrbito();
+        if (hasBch2) {
+            bch2 = getBits(133, 144);
+            computedBch2 = computeBCH2();
+            // Try and correct single bit error on  BCH2 (bits 107 - 132)
+            if (computedBch2 != bch2) {
+                simpleCorrection(false);
+            }
+        }
+        static bool isCorrecting = false;
+        // If BCH1 or BCH2 has been corrected, we need to parse frame again to update beacon properties
+        if (!isCorrecting && (bch1Corrected || bch2Corrected)) {
+            // Prevent recursion
+            isCorrecting = true;
+            parseFrame();
+            isCorrecting = false;
+        }
+    }
+};
+}  // namespace ui::external_app::epirb_rx
+
+#endif  // __BEACON_RX_H__

firmware/application/external/epirb_rx/beacon_db.cpp

@@ -0,0 +1,95 @@
+/*
+ * Copyright (C) 2026 Frederic BORRY - ADRASEC 31
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "beacon_db.hpp"
+
+namespace ui::external_app::epirb_rx {
+
+/**
+ * Add a beacon to the database.
+ * @return the added beacon reference.
+ */
+Beacon& BeaconDB::add_beacon() {
+    Beacon& result = recent_beacons[recent_beacon_pos];
+    recent_beacon_pos = (recent_beacon_pos + 1) % BEACON_HISTORY_SIZE;
+    if (recent_beacon_pos == 0) recent_beacon_full = true;
+    return result;
+}
+
+/**
+ * Get the size of the beacon database
+ * @return the size of the beacon database
+ */
+size_t BeaconDB::size() {
+    return recent_beacon_full ? BEACON_HISTORY_SIZE : recent_beacon_pos;
+}
+
+/**
+ * Returns true if the database is empty
+ * @return true if the database is empty
+ */
+bool BeaconDB::empty() {
+    return (!recent_beacon_full && (recent_beacon_pos == 0));
+}
+
+/**
+ * Returns the beacon at the provided index
+ */
+Beacon& BeaconDB::get_beacon(size_t index) {
+    // Start from last beacon et go backward
+    int16_t pos = (int16_t)recent_beacon_pos - 1 - index;
+    while (pos < 0) pos += BEACON_HISTORY_SIZE;
+    return recent_beacons[pos % BEACON_HISTORY_SIZE];
+}
+
+/**
+ * Set currently selected beacon
+ * @param index the selected index
+ */
+void BeaconDB::set_current_beacon(size_t index) {
+    current_beacon_index = index;
+}
+
+/**
+ * Get currently selected index
+ * @return the currently selected index
+ */
+size_t BeaconDB::get_current_beacon_index() {
+    return current_beacon_index;
+}
+
+/**
+ * Get the currently selected beacon
+ * @return the currently selected beacon
+ */
+Beacon& BeaconDB::get_current_beacon() {
+    return get_beacon(current_beacon_index);
+}
+
+/**
+ * Clear beacon database
+ */
+void BeaconDB::clear() {
+    recent_beacon_pos = 0;
+    recent_beacon_full = false;
+}
+
+}  // namespace ui::external_app::epirb_rx

firmware/application/external/epirb_rx/beacon_db.hpp

@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2026 Frederic BORRY - ADRASEC 31
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __BEACON_DB_H__
+#define __BEACON_DB_H__
+
+#include "beacon.hpp"
+
+namespace ui::external_app::epirb_rx {
+
+// Size of beacon database calculated to match the beacon list component size
+#define BEACON_HISTORY_SIZE 13
+
+class BeaconDB {
+   public:
+    Beacon& add_beacon();
+    Beacon& get_beacon(size_t index);
+    Beacon& get_current_beacon();
+    size_t get_current_beacon_index();
+    void set_current_beacon(size_t index);
+    size_t size();
+    bool empty();
+    void clear();
+
+   private:
+    // Actual beacon database array
+    Beacon recent_beacons[BEACON_HISTORY_SIZE];
+    // Position of the insertion pointer
+    int8_t recent_beacon_pos{0};
+    // Beacon selection handling
+    size_t current_beacon_index{0};
+    // True when database is full
+    bool recent_beacon_full{false};
+};
+
+}  // namespace ui::external_app::epirb_rx
+
+#endif /* __BEACON_DB_H__ */

firmware/application/external/epirb_rx/country.hpp

@@ -0,0 +1,122 @@
+/*
+ * Copyright (C) 2026 Frederic BORRY - ADRASEC 31
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __COUNTRY_RX_H__
+#define __COUNTRY_RX_H__
+
+#include "string_format.hpp"
+#include "file_reader.hpp"
+#include "file_path.hpp"
+
+namespace ui::external_app::epirb_rx {
+
+#define DISABLE_COUNTRY_CACHE
+
+// Country struct
+struct Country {
+    int16_t code;
+    char alphaCode[4];   // 3 chars + null
+    char shortName[11];  // 10 chars + null
+};
+
+class CountryManager {
+   public:
+    static void get_country(int code, Country& out) {
+#ifndef DISABLE_COUNTRY_CACHE
+        // Check cache
+        for (int i = 0; i < cache_count; i++) {
+            if (cache[i].code == code) {
+                out = cache[i];
+                if (i > 0) {  // Promotion
+                    Country tmp = cache[i];
+                    for (int j = i; j > 0; j--) cache[j] = cache[j - 1];
+                    cache[0] = tmp;
+                }
+                return;
+            }
+        }
+#endif
+        // Cache miss => load from file
+        if (load_from_file(code, out)) {
+#ifndef DISABLE_COUNTRY_CACHE
+            // Insert in cache
+            int limit = (cache_count < 16) ? cache_count : 15;
+            for (int j = limit; j > 0; j--) cache[j] = cache[j - 1];
+            cache[0] = out;
+            if (cache_count < 16) cache_count++;
+#endif
+        } else {
+            out.code = code;
+            out.alphaCode[0] = '\0';
+            out.shortName[0] = '\0';
+        }
+    }
+
+   private:
+#ifndef DISABLE_COUNTRY_CACHE
+    static Country cache[16];
+    static int cache_count;
+#endif
+
+    static bool load_from_file(int target_code, Country& out) {
+        FIL file;
+        if (f_open(&file, (epirb_dir / u"RES/COUNTRY.RES").tchar(), FA_READ) != FR_OK) return false;
+
+        TCHAR line[48];
+        bool found = false;
+
+        while (f_gets(line, sizeof(line) / sizeof(TCHAR), &file)) {
+            // Light parsing method
+            TCHAR* p = line;
+
+            // Parse CODE
+            int c = 0;
+            while (*p >= '0' && *p <= '9') c = c * 10 + (*p++ - '0');
+            if (c != target_code || *p != ':') continue;
+            p++;  // Skip ':'
+
+            out.code = (int16_t)c;
+
+            // Parse ALPHA CODE (3 chars)
+            for (int i = 0; i < 3 && *p != ':'; i++) out.alphaCode[i] = (char)*p++;
+            out.alphaCode[3] = '\0';
+            if (*p != ':') continue;
+            p++;  // Skip ':'
+
+            // Parse SHORT NAME
+            int i = 0;
+            while (i < static_cast<int>(sizeof(out.shortName) - 1) && *p != '\r' && *p != '\n' && *p != '\0') {
+                out.shortName[i++] = (char)*p++;
+            }
+            out.shortName[i] = '\0';
+
+            found = true;
+            break;
+        }
+
+        f_close(&file);
+        return found;
+    }
+};
+
+}  // namespace ui::external_app::epirb_rx
+
+#endif  // __COUNTRY_RX_H__

firmware/application/external/epirb_rx/location.cpp

@@ -0,0 +1,149 @@
+/*
+ * Copyright (C) 2026 Frederic BORRY - ADRASEC 31
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "location.hpp"
+#include <cstdio>
+#include "string_format.hpp"
+
+namespace ui::external_app::epirb_rx {
+
+void Location::Angle::clear() {
+    degrees = 255;
+    minutes = 0;
+    seconds = 0;
+    orientation = false;
+    floatValue = 255;
+}
+
+float Location::Angle::getFloatValue() {
+    if (floatValue >= 255) {
+        floatValue = (float)degrees;
+        floatValue += ((float)minutes / 60.0f);
+        floatValue += ((float)seconds / 3600.0f);
+        if (orientation) {
+            floatValue = -floatValue;
+        }
+    }
+    return floatValue;
+}
+
+void Location::Angle::apply_offset(bool positive, long ofmin, long ofsec) {
+    if (positive) {
+        minutes += ofmin;
+        seconds += ofsec;
+    } else {
+        minutes -= ofmin;
+        if (minutes < 0) {
+            minutes += 60;
+            degrees -= 1;
+        }
+        seconds -= ofsec;
+        if (seconds < 0) {
+            seconds += 60;
+            minutes -= 1;
+        }
+    }
+}
+
+void Location::clear() {
+    latitude.clear();
+    longitude.clear();
+}
+
+bool Location::isUnknown() {
+    return (latitude.degrees >= 255 || longitude.degrees >= 255);
+}
+
+char Location::gps_letterize(int x) {
+    return (char)x + 65;
+}
+
+size_t Location::gps_compute_locator(char* buffer, float lat, float lon, int precision) {
+    size_t result = 0;
+
+    lon += 180.0f;
+    lat += 90.0f;
+
+    int A = lon / 20;
+    int B = lat / 10;
+
+    lon -= A * 20;
+    lat -= B * 10;
+
+    int C = lon / 2;
+    int D = lat / 1;
+
+    lon -= C * 2;
+    lat -= D * 1;
+
+    int E = lon / (5.0f / 60.0f);
+    int F = lat / (2.5f / 60.0f);
+
+    lon -= E * (5.0f / 60.0f);
+    lat -= F * (2.5f / 60.0f);
+
+    int G = lon / (5.0f / 600.0f);
+    int H = lat / (2.5f / 600.0f);
+
+    buffer[result++] = char('A' + A);
+    buffer[result++] = char('A' + B);
+
+    if (precision >= 4) {
+        buffer[result++] = char('0' + C);
+        buffer[result++] = char('0' + D);
+    }
+
+    if (precision >= 6) {
+        buffer[result++] = char('a' + E);
+        buffer[result++] = char('a' + F);
+    }
+
+    if (precision >= 8) {
+        buffer[result++] = char('0' + G);
+        buffer[result++] = char('0' + H);
+    }
+    buffer[result] = 0;
+    return result;
+}
+
+size_t Location::toString(char* buffer, LocationFormat format, int precision) {
+    if (isUnknown()) {
+        return sprintf(buffer, "%s", "GPS not synchronized");
+    }
+    switch (format) {
+        case LocationFormat::SEXAGESIMAL: {
+            return sprintf(buffer, "%ld\xB0%02ld'%02ld\"%c, %ld\xB0%02ld'%02ld\"%c",  // 0xB0 is degree ° symbol in our 8x16 font
+                           latitude.degrees, latitude.minutes, latitude.seconds, latitude.orientation ? 'S' : 'N',
+                           longitude.degrees, longitude.minutes, longitude.seconds, longitude.orientation ? 'W' : 'E');
+        }
+        case LocationFormat::MAIDENHEAD_LOCATOR:
+            return gps_compute_locator(buffer, latitude.getFloatValue(), longitude.getFloatValue(), precision);
+        default:
+        case LocationFormat::DECIMAL:
+            return sprintf(buffer, "%s, %s", to_string_decimal(latitude.getFloatValue(), 5).c_str(), to_string_decimal(longitude.getFloatValue(), 5).c_str());
+    }
+}
+
+void Location::formatFloatLocation(char* buffer, const char* format) {
+    sprintf(buffer, format, to_string_decimal(latitude.getFloatValue(), 6).c_str(), to_string_decimal(longitude.getFloatValue(), 6).c_str());
+}
+
+}  // namespace ui::external_app::epirb_rx

firmware/application/external/epirb_rx/location.hpp

@@ -0,0 +1,76 @@
+/*
+ * Copyright (C) 2026 Frederic BORRY - ADRASEC 31
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+#ifndef __LOCATION_RX_H__
+#define __LOCATION_RX_H__
+
+#include <cstddef>
+
+namespace ui::external_app::epirb_rx {
+
+class Location {
+   public:
+    class Angle {
+       public:
+        long degrees = 0;
+        long minutes = 0;
+        long seconds = 0;
+        bool orientation = false;  // false = N/E, true = S/W
+
+        Angle() {}
+        Angle(long degrees)
+            : degrees(degrees) {}
+
+        void clear();
+
+        float getFloatValue();
+
+        // Apply an offset (minutes / seconds) with sign-based borrow into minutes/degrees.
+        // Out-of-line to keep parseFrame from inlining the same arithmetic 6 times.
+        void apply_offset(bool positive, long ofmin, long ofsec);
+
+       private:
+        float floatValue = 255.0f;
+    };
+
+    enum class LocationFormat { DECIMAL,
+                                SEXAGESIMAL,
+                                MAIDENHEAD_LOCATOR };
+
+    Angle latitude = Angle(127);
+    Angle longitude = Angle(255);
+
+    void clear();
+
+    bool isUnknown();
+
+    static char gps_letterize(int x);
+
+    // For code size optimization reasons, string manipulation is performed with char buffers
+    // with no char buffer size check. Caller methods take care of providing large enough buffers
+    static size_t gps_compute_locator(char* buffer, float lat, float lon, int precision = 6);
+    size_t toString(char* buffer, LocationFormat format, int precision = 6);
+
+    void formatFloatLocation(char* buffer, const char* format);
+};
+
+}  // namespace ui::external_app::epirb_rx
+
+#endif  // __LOCATION_RX_H__

firmware/application/external/epirb_rx/main.cpp

@@ -73,7 +73,7 @@ __attribute__((section(".external_app.app_epirb_rx.application_information"), us
         0x00,
         0x00,
     },
-    /*.icon_color = */ ui::Color::orange().v,
+    /*.icon_color = */ ui::Color::green().v,
     /*.menu_location = */ app_location_t::RX,
     /*.desired_menu_position = */ -1,
 

firmware/application/external/epirb_rx/resources.hpp

@@ -0,0 +1,100 @@
+/*
+ * Copyright (C) 2026 Frederic BORRY - ADRASEC 31
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __RESOUCES_H__
+#define __RESOUCES_H__
+
+#include <cstring>
+#include <vector>
+#include "file_reader.hpp"
+#include "file_path.hpp"
+
+namespace ui::external_app::epirb_rx {
+
+#define UNKNOWN_LABEL "Unk."
+
+extern std::vector<std::string> beacon_res;
+extern std::vector<std::string> freq;
+
+/**
+ * This class is used to load string resources from SD card.
+ * This is done mostly to reduce application size and keep it under the 32kb limit.
+ * It's also used to load frequency values, allowing users to customize frequency list by editing FREQ.TXT file on SD card.
+ */
+class ResourceManager {
+   public:
+    // Singleton getter
+    static ResourceManager* getInstance();
+
+    // Singleton instance
+    static ResourceManager* current;
+    // Used from standalone app, to prevent memleak
+    static void destroy();
+
+    // Get a string from BEACON.RES file
+    static const char* get_beacon_resource(uint8_t line) {
+        ResourceManager* rm = getInstance();
+        if (rm->beacon_res.empty()) {
+            load_file((epirb_dir / u"RES/BEACON.RES"), rm->beacon_res);
+        }
+        if (line < rm->beacon_res.size()) {
+            return rm->beacon_res[line].c_str();
+        }
+        return UNKNOWN_LABEL;
+    }
+
+    // Get frequency values
+    static const std::vector<std::string>& get_frequencies() {
+        ResourceManager* rm = getInstance();
+        if (rm->freq.empty()) {
+            load_file((epirb_dir / u"FREQ.TXT"), rm->freq);
+        }
+        return rm->freq;
+    }
+
+   private:
+    // BEACON.RES content
+    std::vector<std::string> beacon_res{};
+    // FREQ.TXT content
+    std::vector<std::string> freq{};
+
+    static void load_file(const std::filesystem::path& path, std::vector<std::string>& vect) {
+        FIL file;
+        if (f_open(&file, path.tchar(), FA_READ) == FR_OK) {
+            TCHAR line_buffer[32];
+            // Read the file line by line
+            while (f_gets(line_buffer, sizeof(line_buffer) / sizeof(TCHAR), &file)) {
+                std::string s;
+                for (int i = 0; line_buffer[i] != '\0' && line_buffer[i] != '\n' && line_buffer[i] != '\r'; i++) {
+                    // Convert each TCHAR in char
+                    s += (char)line_buffer[i];
+                }
+                vect.push_back(std::move(s));
+            }
+            f_close(&file);
+        }
+        if (vect.empty()) vect.push_back(UNKNOWN_LABEL);
+    }
+};
+
+}  // namespace ui::external_app::epirb_rx
+
+#endif  // __RESOUCES_H__

firmware/application/external/epirb_rx/ui_beaconlist.cpp

@@ -0,0 +1,143 @@
+/*
+ * Copyright (C) 2026 Frederic BORRY - ADRASEC 31
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "ui_beaconlist.hpp"
+#include <algorithm>
+
+namespace ui::external_app::epirb_rx {
+
+BeaconUIList::BeaconUIList(Rect parent_rect)
+    : View{parent_rect} {
+    this->set_focusable(true);
+}
+
+void BeaconUIList::paint(Painter& painter) {
+    auto rect = screen_rect();
+    // Clear view
+    painter.fill_rectangle(rect, Theme::getInstance()->bg_darkest->background);
+
+    if (!db_ || (db_->empty())) {
+        return;
+    }
+
+    auto base_style = Theme::getInstance()->bg_darkest;
+
+    for (auto offset = 0u; offset < BEACON_HISTORY_SIZE; ++offset) {
+        // The whole frame needs to be cleared so every line 'slot'
+        // is redrawn even when `text` just left empty.
+        auto text = std::string{};
+        auto index = start_index_ + offset;
+        auto line_position = rect.location() + Point{0, 1 + (int)offset * char_height};
+        auto is_selected = offset == selected_index_;
+        auto style = base_style;
+
+        if (index < db_->size()) {
+            // Get beacon entry and format it's summary
+            auto& entry = db_->get_beacon(index);
+            char buffer[64];
+            entry.formatSummary(buffer, true);
+            text = std::string(buffer);
+        }
+
+        if (index == db_->get_current_beacon_index())
+            // If this is the currently displayed beacon change color
+            style = Theme::getInstance()->bg_medium;
+
+        // Draw entry line
+        painter.draw_string(
+            line_position, (is_selected ? style->invert() : *style), text);
+    }
+
+    // Draw a bounding rectangle when focused.
+    painter.draw_rectangle(rect, (has_focus() ? Theme::getInstance()->bg_darkest->foreground : Theme::getInstance()->bg_darkest->background));
+}
+
+void BeaconUIList::on_show() {
+    set_dirty();
+}
+
+bool BeaconUIList::on_key(const KeyEvent key) {
+    if (!db_ || db_->empty())
+        return false;
+
+    if (key == KeyEvent::Select && on_select) {
+        // Select this beacon
+        on_select(get_index());
+        set_dirty();
+        return true;
+    }
+
+    auto delta = 0;
+    // Change position in the list
+    if (key == KeyEvent::Up && get_index() > 0)
+        delta = -1;
+    else if (key == KeyEvent::Down && get_index() < db_->size() - 1)
+        delta = 1;
+    else
+        return false;
+
+    adjust_selected_index(delta);
+    set_dirty();
+    return true;
+}
+
+bool BeaconUIList::on_encoder(EncoderEvent delta) {
+    if (!db_ || db_->empty())
+        return false;
+    // Change position in the list according to encoder
+    adjust_selected_index(delta);
+    set_dirty();
+    return true;
+}
+
+size_t BeaconUIList::get_index() const {
+    return start_index_ + selected_index_;
+}
+
+void BeaconUIList::set_db(BeaconDB& db) {
+    db_ = &db;
+    start_index_ = 0;
+    selected_index_ = 0;
+    set_dirty();
+}
+
+void BeaconUIList::adjust_selected_index(int delta) {
+    int32_t new_index = selected_index_ + delta;
+
+    // The selection went off the top of the screen, move up.
+    if (new_index < 0) {
+        start_index_ = std::max<int32_t>(start_index_ + new_index, 0);
+        selected_index_ = 0;
+    }
+
+    // Selection is off the bottom of the screen, move down.
+    else if (new_index >= (int32_t)BEACON_HISTORY_SIZE) {
+        start_index_ = std::min<int32_t>(start_index_ + delta, db_->size() - BEACON_HISTORY_SIZE);
+        selected_index_ = BEACON_HISTORY_SIZE - 1;
+    }
+
+    // Otherwise, scroll within the screen, but not past the end.
+    else {
+        selected_index_ = std::min<int32_t>(new_index, db_->size() - 1);
+    }
+}
+
+}  // namespace ui::external_app::epirb_rx

firmware/application/external/epirb_rx/ui_beaconlist.hpp

@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2026 Frederic BORRY - ADRASEC 31
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __UI_BEACONLIST_H__
+#define __UI_BEACONLIST_H__
+
+#include "ui.hpp"
+#include "ui_painter.hpp"
+#include "ui_widget.hpp"
+#include "beacon_db.hpp"
+
+namespace ui::external_app::epirb_rx {
+
+/**
+ * Beacon list component
+ */
+class BeaconUIList : public View {
+   public:
+    std::function<void(size_t)> on_select{};
+
+    BeaconUIList(Rect parent_rect);
+    BeaconUIList(const BeaconUIList& other) = delete;
+    BeaconUIList& operator=(const BeaconUIList& other) = delete;
+
+    void paint(Painter& painter) override;
+    void on_show() override;
+    bool on_key(const KeyEvent key) override;
+    bool on_encoder(EncoderEvent delta) override;
+
+    size_t get_index() const;
+    void set_db(BeaconDB& db);
+
+   private:
+    void adjust_selected_index(int index);
+
+    BeaconDB* db_{nullptr};
+    size_t start_index_{0};
+    size_t selected_index_{0};
+};
+
+}  // namespace ui::external_app::epirb_rx
+
+#endif /*__UI_BEACONLIST_H__*/

firmware/application/external/epirb_rx/ui_epirb_rx.hpp

@@ -1,297 +1,324 @@
-/*
- * Copyright (C) 2024 EPIRB Decoder Implementation
- *
- * This file is part of PortaPack.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; see the file COPYING.  If not, write to
- * the Free Software Foundation, Inc., 51 Franklin Street,
- * Boston, MA 02110-1301, USA.
- */
-
-#ifndef __UI_EPIRB_RX_H__
-#define __UI_EPIRB_RX_H__
-
-#include "app_settings.hpp"
-#include "radio_state.hpp"
-#include "ui_widget.hpp"
-#include "ui_navigation.hpp"
-#include "ui_receiver.hpp"
-#include "ui_geomap.hpp"
-
-#include "event_m0.hpp"
-#include "signal.hpp"
-#include "message.hpp"
-#include "log_file.hpp"
-
-#include "baseband_packet.hpp"
-
-/* #include <cstdint>
-#include <cstddef>
-#include <string>
-#include <array> */
-
-namespace ui::external_app::epirb_rx {
-
-// EPIRB 406 MHz beacon types
-enum class BeaconType : uint8_t {
-    OrbitingLocationBeacon = 0,
-    PersonalLocatorBeacon = 1,
-    EmergencyLocatorTransmitter = 2,
-    SerialELT = 3,
-    NationalELT = 4,
-    Other = 15
-};
-
-// EPIRB distress and emergency types
-enum class EmergencyType : uint8_t {
-    Fire = 0,
-    Flooding = 1,
-    Collision = 2,
-    Grounding = 3,
-    Sinking = 4,
-    Disabled = 5,
-    Abandoning = 6,
-    Piracy = 7,
-    Man_Overboard = 8,
-    Other = 15
-};
-
-struct EPIRBLocation {
-    float latitude;   // degrees, -90 to +90
-    float longitude;  // degrees, -180 to +180
-    bool valid;
-
-    EPIRBLocation()
-        : latitude(0.0f), longitude(0.0f), valid(false) {}
-    EPIRBLocation(float lat, float lon)
-        : latitude(lat), longitude(lon), valid(true) {}
-};
-
-enum class PacketStatus : uint8_t {
-    Valid = 0,
-    Corrected = 1,
-    Error = 2
-};
-
-struct EPIRBBeacon {
-    uint32_t beacon_id;
-    BeaconType beacon_type;
-    EmergencyType emergency_type;
-    EPIRBLocation location;
-    uint32_t country_code;
-    std::string vessel_name;
-    rtc::RTC timestamp;
-    uint32_t sequence_number;
-    PacketStatus packet_status;
-    uint8_t error_count;
-
-    EPIRBBeacon()
-        : beacon_id(0), beacon_type(BeaconType::Other), emergency_type(EmergencyType::Other), location(), country_code(0), vessel_name(), timestamp(), sequence_number(0), packet_status(PacketStatus::Error), error_count(0) {}
-};
-
-class EPIRBDecoder {
-   public:
-    static EPIRBBeacon decode_packet(const baseband::Packet& packet);
-
-   private:
-    static EPIRBLocation decode_location(const std::array<uint8_t, 16>& data);
-    static BeaconType decode_beacon_type(uint8_t type_bits);
-    static EmergencyType decode_emergency_type(uint8_t emergency_bits);
-    static uint32_t decode_country_code(const std::array<uint8_t, 16>& data);
-    static std::string decode_vessel_name(const std::array<uint8_t, 16>& data);
-
-    // BCH error correction methods
-    static PacketStatus perform_bch_check(std::array<uint8_t, 16>& data, uint8_t& error_count);
-    static uint32_t calculate_bch_syndrome(const std::array<uint8_t, 16>& data);
-    static bool correct_single_error(std::array<uint8_t, 16>& data, uint32_t syndrome);
-    static uint8_t count_bit_errors(const std::array<uint8_t, 16>& original, const std::array<uint8_t, 16>& corrected);
-};
-
-class EPIRBLogger {
-   public:
-    Optional<File::Error> append(const std::filesystem::path& filename) {
-        return log_file.append(filename);
-    }
-
-    void on_packet(const EPIRBBeacon& beacon);
-
-   private:
-    LogFile log_file{};
-};
-
-// Forward declarations of formatting functions
-std::string format_beacon_type(BeaconType type);
-std::string format_emergency_type(EmergencyType type);
-std::string format_packet_status(PacketStatus status);
-ui::Color get_packet_status_color(PacketStatus status);
-
-class EPIRBBeaconDetailView : public ui::View {
-   public:
-    std::function<void(void)> on_close{};
-
-    EPIRBBeaconDetailView(ui::NavigationView& nav);
-    EPIRBBeaconDetailView(const EPIRBBeaconDetailView&) = delete;
-    EPIRBBeaconDetailView& operator=(const EPIRBBeaconDetailView&) = delete;
-
-    void set_beacon(const EPIRBBeacon& beacon);
-    const EPIRBBeacon& beacon() const { return beacon_; }
-
-    void focus() override;
-    void paint(ui::Painter&) override;
-
-    ui::GeoMapView* get_geomap_view() { return geomap_view; }
-
-   private:
-    EPIRBBeacon beacon_{};
-
-    ui::Button button_done{
-        {125, 224, 96, 24},
-        "Done"};
-    ui::Button button_see_map{
-        {19, 224, 96, 24},
-        "See on map"};
-
-    ui::GeoMapView* geomap_view{nullptr};
-
-    ui::Rect draw_field(
-        ui::Painter& painter,
-        const ui::Rect& draw_rect,
-        const ui::Style& style,
-        const std::string& label,
-        const std::string& value);
-};
-
-class EPIRBAppView : public ui::View {
-   public:
-    EPIRBAppView(ui::NavigationView& nav);
-    ~EPIRBAppView();
-
-    void set_parent_rect(const ui::Rect new_parent_rect) override;
-    void paint(ui::Painter&) override;
-    void focus() override;
-
-    std::string title() const override { return "EPIRB RX"; }
-
-   private:
-    app_settings::SettingsManager settings_{
-        "rx_epirb", app_settings::Mode::RX};
-
-    ui::NavigationView& nav_;
-
-    std::vector<EPIRBBeacon> recent_beacons{};
-    std::unique_ptr<EPIRBLogger> logger{};
-
-    EPIRBBeaconDetailView beacon_detail_view{nav_};
-
-    static constexpr auto header_height = 4 * 16;
-
-    ui::Text label_frequency{
-        {UI_POS_X(0), UI_POS_Y(0), 4 * 8, 1 * 16},
-        "Freq"};
-
-    ui::OptionsField options_frequency{
-        {5 * 8, UI_POS_Y(0)},
-        7,
-        {
-            {"406.028", 406028000},
-            {"406.025", 406025000},
-            {"406.037", 406037000},
-            {"433.025", 433025000},
-            {"144.875", 144875000},
-        }};
-
-    ui::RFAmpField field_rf_amp{
-        {13 * 8, UI_POS_Y(0)}};
-
-    ui::LNAGainField field_lna{
-        {15 * 8, UI_POS_Y(0)}};
-
-    ui::VGAGainField field_vga{
-        {18 * 8, UI_POS_Y(0)}};
-
-    ui::RSSI rssi{
-        {UI_POS_X(21), 0, UI_POS_WIDTH_REMAINING(24), 4}};
-
-    ui::Channel channel{
-        {UI_POS_X(21), 5, UI_POS_WIDTH_REMAINING(24), 4}};
-
-    ui::AudioVolumeField field_volume{
-        {screen_width - 2 * 8, UI_POS_Y(0)}};
-
-    // Status display
-    ui::Text label_status{
-        {UI_POS_X(0), 1 * 16, 15 * 8, 1 * 16},
-        "Listening..."};
-
-    ui::Text label_beacons_count{
-        {16 * 8, 1 * 16, 14 * 8, 1 * 16},
-        "Beacons: 0"};
-
-    ui::Text label_packet_stats{
-        {UI_POS_X(0), 3 * 16, 29 * 8, 1 * 16},
-        ""};
-
-    // Latest beacon info display
-    ui::Text label_latest{
-        {UI_POS_X(0), 2 * 16, 8 * 8, 1 * 16},
-        "Latest:"};
-
-    ui::Text text_latest_info{
-        {8 * 8, 2 * 16, 22 * 8, 1 * 16},
-        ""};
-
-    // Beacon list
-    ui::Console console{
-        {0, 4 * 16, 240, 152}};
-
-    ui::Button button_map{
-        {0, 224, 60, 24},
-        "Map"};
-
-    ui::Button button_clear{
-        {64, 224, 60, 24},
-        "Clear"};
-
-    ui::Button button_log{
-        {128, 224, 60, 24},
-        "Log"};
-
-    SignalToken signal_token_tick_second{};
-    uint32_t beacons_received = 0;
-    uint32_t packets_valid = 0;
-    uint32_t packets_corrected = 0;
-    uint32_t packets_error = 0;
-
-    MessageHandlerRegistration message_handler_packet{
-        Message::ID::EPIRBPacket,
-        [this](Message* const p) {
-            const auto message = static_cast<const EPIRBPacketMessage*>(p);
-            this->on_packet(message->packet);
-        }};
-
-    void on_packet(const baseband::Packet& packet);
-    void on_beacon_decoded(const EPIRBBeacon& beacon);
-    void on_show_map();
-    void on_clear_beacons();
-    void on_toggle_log();
-    void on_tick_second();
-
-    void update_display();
-    std::string format_beacon_summary(const EPIRBBeacon& beacon);
-    std::string format_location(const EPIRBLocation& location);
-};
-
-}  // namespace ui::external_app::epirb_rx
-
+/*
+ * Copyright (C) 2024 EPIRB Decoder Implementation
+ * Copyright (C) 2026 Frederic BORRY - ADRASEC 31
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __UI_EPIRB_RX_H__
+#define __UI_EPIRB_RX_H__
+
+#include "app_settings.hpp"
+#include "radio_state.hpp"
+#include "ui_widget.hpp"
+#include "ui_navigation.hpp"
+#include "ui_receiver.hpp"
+#include "ui_geomap.hpp"
+
+// Specan is disable to keep application size below the 32k limit
+// #define SPECAN
+
+// Comment to disable timout reset on select and save approx 200 bytes of flash
+#ifndef PRALINE
+// Application does not fit on Praline with RESET_TIMER enabled
+#define RESET_TIMER
+#endif
+// Comment to disable squelch control
+#define SQUELCH
+// Comment to disable beacon selection by encoder on detail tab
+#define DETAIL_TAB_BEACON_SEL
+// #define LOGGER
+
+#ifdef SPECAN
+#include "ui_spectrum.hpp"
+#endif
+
+#include "ui_tabview.hpp"
+
+#include "ui_qrcode.hpp"
+
+#include "event_m0.hpp"
+#include "message.hpp"
+#include "log_file.hpp"
+
+#include "baseband_packet.hpp"
+
+#include "audio.hpp"
+
+#include "beacon.hpp"
+#include "beacon_db.hpp"
+#include "ui_beaconlist.hpp"
+#include "resources.hpp"
+
+namespace ui::external_app::epirb_rx {
+
+/**
+ * Status of a packet
+ */
+enum class PacketStatus : uint8_t {
+    Valid = 0,
+    Corrected = 1,
+    Error = 2
+};
+
+// Position of tabs in tab view
+#define EPIRB_TAB_POS_Y (UI_POS_Y(4) + 3 * 8)
+// Height of tabs in tab view
+#define EPIRB_TAB_HEIGHT (screen_height - EPIRB_TAB_POS_Y - UI_POS_HEIGHT(1))
+
+#ifdef LOGGER
+class EPIRBLogger {
+   public:
+    Optional<File::Error> append(const std::filesystem::path& filename) {
+        return log_file.append(filename);
+    }
+
+    void on_packet(Beacon& beacon);
+
+   private:
+    LogFile log_file{};
+};
+#endif
+
+/**
+ * Dedicated TextArea component used to optimize application code size
+ */
+class TextArea : public Widget {
+   public:
+    TextArea(Rect parent_rect);
+
+#ifdef RESET_TIMER
+    std::function<void(TextArea&)> on_select{};
+    bool on_key(const KeyEvent key) override;
+#endif
+
+    void set_content(std::string_view value);
+    void paint(Painter& painter) override;
+
+   private:
+    std::string content{};
+};
+
+// Forward declaration
+class EPIRBAppView;
+
+/**
+ * View for beacon detail tab
+ */
+class EPIRBDetailView : public View {
+   public:
+    EPIRBDetailView(Rect parent_rect, EPIRBAppView& parent);
+    void set_beacon(Beacon& beacon);
+#ifdef DETAIL_TAB_BEACON_SEL
+    bool on_encoder(EncoderEvent delta) override;
+#endif
+
+   private:
+    TextArea text_beacon{{UI_POS_X(0), UI_POS_Y(0), UI_POS_MAXWIDTH, EPIRB_TAB_HEIGHT}};
+    EPIRBAppView& parent_app;
+};
+
+#define EPIRB_RX_DEFAULT_LATITUDE 43.604f
+#define EPIRB_RX_DEFAULT_LONGITUDE 1.458f
+
+/**
+ * View for beacon map tab
+ */
+class EPIRBMapView : public View {
+   public:
+    EPIRBMapView(Rect parent_rect);
+    void paint(Painter& painter) override;
+    void on_show() override;
+    void set_main_marker(const std::string& label, float lat, float lon);
+    void clear_markers();
+    void add_marker(GeoMarker& marker);
+    void hide_map(bool hide);
+    void repaint();
+
+   private:
+    GeoMap geomap{{0, 0, UI_POS_MAXWIDTH, EPIRB_TAB_HEIGHT}};
+    float lat_{EPIRB_RX_DEFAULT_LATITUDE};
+    float lon_{EPIRB_RX_DEFAULT_LONGITUDE};
+    bool map_hidden{true};
+};
+
+#define QR_WIDTH 126
+#define QR_HEIGHT 127
+
+/**
+ * Vieaw for Beacon QR tab
+ */
+class EPRIBQRView : public View {
+   public:
+    EPRIBQRView(Rect parent_rect);
+    EPRIBQRView(const EPRIBQRView&) = delete;
+    EPRIBQRView& operator=(const EPRIBQRView&) = delete;
+
+    void set_beacon(Beacon* beacon);
+    void update_qr();
+    void update_display();
+
+   private:
+    bool show_map{true};
+    Beacon* current_beacon{nullptr};
+    char qr_url[128];
+
+    OptionsField options_qr{
+        {UI_POS_X(5), UI_POS_Y(1)},
+        6,
+        {{"Map", 0},
+         {"Detail", 1}}};
+
+    QRCodeImage qr_code{
+        {UI_POS_MAXWIDTH - QR_WIDTH - UI_POS_X(1), UI_POS_Y(1), QR_WIDTH, QR_HEIGHT}};
+
+    TextArea text_data{{UI_POS_X(0), UI_POS_Y(1), UI_POS_MAXWIDTH, EPIRB_TAB_HEIGHT - UI_POS_Y(1)}};
+};
+
+#ifdef SPECAN
+class EPIRBRxView : public spectrum::WaterfallView {
+   public:
+    EPIRBRxView(EPIRBAppView& parent, Rect parent_rect);
+    void on_show() override;
+    void on_hide() override;
+
+   private:
+    EPIRBAppView& app_view;
+};
+#endif
+
+class EPIRBAppView final : public ui::View {
+   public:
+    EPIRBAppView(ui::NavigationView& nav);
+    ~EPIRBAppView();
+
+    void focus() override;
+    void refresh();
+
+    // Message to configure rx baseband
+    EPIRBRXConfig epirb_rx_config_message{};
+    void send_config();
+    // Beacons database
+    BeaconDB beacon_db{};
+    // Update display when beacon selection changed0
+    void on_beacon_change();
+
+    std::string title() const override { return "EPIRB RX"; }
+
+   private:
+    uint8_t squelch{50};
+    // The delay between each frame
+    uint32_t countdown{50};
+    app_settings::SettingsManager settings_{
+        "rx_epirb",
+        app_settings::Mode::RX,
+        {
+            {"epirb_squelch"sv, &squelch},
+            {"countdown"sv, &countdown},
+        }};
+
+    ui::NavigationView& nav_;
+
+#ifdef LOGGER
+    std::unique_ptr<EPIRBLogger> logger{};
+#endif
+
+    OptionsField options_frequency{
+        {UI_POS_X(0), UI_POS_Y(0)},
+        7,
+        {}};
+
+    ui::RFAmpField field_rf_amp{
+        {UI_POS_X(8), UI_POS_Y(0)}};
+
+    ui::LNAGainField field_lna{
+        {UI_POS_X(10), UI_POS_Y(0)}};
+
+    ui::VGAGainField field_vga{
+        {UI_POS_X(13), UI_POS_Y(0)}};
+
+    ui::RSSI rssi{
+        {UI_POS_X(16), UI_POS_Y(0), UI_POS_WIDTH_REMAINING(22), 4}};
+
+    ui::Channel channel{
+        {UI_POS_X(16), UI_POS_Y(0) + 5, UI_POS_WIDTH_REMAINING(22), 4}};
+
+    // ui::Audio audio{
+    //     {UI_POS_X(16), UI_POS_Y(0) + 10, UI_POS_WIDTH_REMAINING(22), 4}};
+
+    ui::AudioVolumeField field_volume{
+        {UI_POS_WIDTH_REMAINING(2), UI_POS_Y(0)}};
+
+#ifdef SQUELCH
+    NumberField field_squelch{
+        {UI_POS_WIDTH_REMAINING(5), UI_POS_Y(0)},
+        2,
+        {0, 99},
+        1,
+        ' '};
+#endif
+
+    // Status display
+    TextArea text_status{{UI_POS_X(0), UI_POS_Y(1), UI_POS_MAXWIDTH, UI_POS_HEIGHT(3)}};
+    TextArea text_timeout{
+        {UI_POS_X(13), UI_POS_Y(1), UI_POS_WIDTH(3), UI_POS_HEIGHT(1)}};
+    SignalToken signal_token_tick_second{};
+    // Timeout string
+    int16_t timeout{0};
+
+    // Tab View
+    Rect view_rect = {0, EPIRB_TAB_POS_Y, UI_POS_MAXWIDTH, EPIRB_TAB_HEIGHT};
+
+    BeaconUIList view_list{view_rect};
+    EPIRBDetailView view_detail{view_rect, (*this)};
+    EPIRBMapView view_map{view_rect};
+#ifdef SPECAN
+    EPIRBRxView view_rx{*this, view_rect};
+#endif
+
+    EPRIBQRView view_qr{view_rect};
+
+    TabView tab_view{
+        {"List", Theme::getInstance()->fg_cyan->foreground, &view_list},
+        {"Detail", Theme::getInstance()->fg_green->foreground, &view_detail},
+        {"Map", Theme::getInstance()->fg_yellow->foreground, &view_map},
+#ifdef SPECAN
+        {"RX", Theme::getInstance()->fg_orange->foreground, &view_rx},
+#endif
+        {"QR", Theme::getInstance()->fg_orange->foreground, &view_qr}};
+
+    uint16_t beacons_received = 0;
+    uint16_t packets_valid = 0;
+    uint16_t packets_corrected = 0;
+    uint16_t packets_error = 0;
+
+    MessageHandlerRegistration message_handler_packet{
+        Message::ID::EPIRBPacket,
+        [this](Message* const p) { on_packet(p); }};
+
+    static void decode_packet(const baseband::Packet& packet, Beacon& beacon);
+    void on_packet(Message* const p);
+    void update_map();
+    void on_tick_second();
+
+    void update_display();
+};
+
+}  // namespace ui::external_app::epirb_rx
+
 #endif  // __UI_EPIRB_RX_H__

firmware/application/external/epirb_tx/location.hpp

@@ -24,7 +24,6 @@
 #include "portapack.hpp"
 #include "ui_epirb_tx.hpp"
 #include <cmath>
-#include <cctype>
 #include <cstdio>
 
 namespace ui::external_app::epirb_tx {
@@ -37,17 +36,17 @@ namespace ui::external_app::epirb_tx {
  * @param min output minutes value
  * @param sec output seconds value
  */
-static void decimal_to_dms(double value, bool& negative, uint16_t& deg, uint8_t& min, uint8_t& sec) {
+static void decimal_to_dms(float value, bool& negative, int16_t& deg, int8_t& min, int8_t& sec) {
     negative = value < 0;
     value = std::fabs(value);
 
-    deg = (uint16_t)value;
+    deg = (int16_t)value;
 
-    double m = (value - deg) * 60.0;
-    min = (uint8_t)m;
+    float m = (value - deg) * 60.0f;
+    min = (int8_t)m;
 
-    double s = (m - min) * 60.0;
-    sec = (uint8_t)(s + 0.5);
+    float s = (m - min) * 60.0f;
+    sec = (int8_t)(s + 0.5f);
 
     if (sec == 60) {
         sec = 0;
@@ -68,8 +67,8 @@ static void decimal_to_dms(double value, bool& negative, uint16_t& deg, uint8_t&
  * @param sec seconds value
  * @return value the decimal value
  */
-static double dms_to_decimal(bool negative, uint16_t deg, uint8_t min, uint8_t sec) {
-    double v = deg + min / 60.0 + sec / 3600.0;
+static float dms_to_decimal(bool negative, int16_t deg, int8_t min, int8_t sec) {
+    float v = deg + min / 60.0f + sec / 3600.0f;
     return negative ? -v : v;
 }
 
@@ -80,55 +79,60 @@ static double dms_to_decimal(bool negative, uint16_t deg, uint8_t min, uint8_t s
  * @param lon output longitude
  */
 static void maidenhead_to_decimal(const std::string& loc, float& lat, float& lon) {
-    static const double lon_step[] =
+    static const float lon_step[] =
         {
-            20.0,
-            2.0,
-            1.0 / 12.0,
-            1.0 / 120.0,
-            1.0 / 2880.0};
+            20.0f,
+            2.0f,
+            1.0f / 12.0f,
+            1.0f / 120.0f,
+            1.0f / 2880.0f};
 
-    static const double lat_step[] =
+    static const float lat_step[] =
         {
-            10.0,
-            1.0,
-            1.0 / 24.0,
-            1.0 / 240.0,
-            1.0 / 5760.0};
+            10.0f,
+            1.0f,
+            1.0f / 24.0f,
+            1.0f / 240.0f,
+            1.0f / 5760.0f};
 
-    lon = -180.0;
-    lat = -90.0;
+    lon = -180.0f;
+    lat = -90.0f;
 
     int pairs = loc.size() / 2;
+
     if (pairs > 5)
         pairs = 5;
 
-    for (int i = 0; i < pairs; i++) {
-        char c1 = std::toupper(loc[i * 2]);
-        char c2 = std::toupper(loc[i * 2 + 1]);
+    if (pairs > 0) {
+        for (int i = 0; i < pairs; i++) {
+            char c1 = loc[i * 2];
+            char c2 = loc[i * 2 + 1];
+            if (c1 >= 'a' && c1 <= 'z') c1 -= ('a' - 'A');
+            if (c2 >= 'a' && c2 <= 'z') c2 -= ('a' - 'A');
 
-        double lon_size = lon_step[i];
-        double lat_size = lat_step[i];
+            float lon_size = lon_step[i];
+            float lat_size = lat_step[i];
 
-        int v1, v2;
+            int v1, v2;
 
-        if (i % 2 == 0)  // letters
-        {
-            v1 = c1 - 'A';
-            v2 = c2 - 'A';
-        } else  // digits
-        {
-            v1 = c1 - '0';
-            v2 = c2 - '0';
+            if (i % 2 == 0)  // letters
+            {
+                v1 = c1 - 'A';
+                v2 = c2 - 'A';
+            } else  // digits
+            {
+                v1 = c1 - '0';
+                v2 = c2 - '0';
+            }
+
+            lon += v1 * lon_size;
+            lat += v2 * lat_size;
         }
 
-        lon += v1 * lon_size;
-        lat += v2 * lat_size;
+        // Cell center
+        lon += lon_step[pairs - 1] / 2.0f;
+        lat += lat_step[pairs - 1] / 2.0f;
     }
-
-    // Cell center
-    lon += lon_step[pairs - 1] / 2.0;
-    lat += lat_step[pairs - 1] / 2.0;
 }
 
 /**
@@ -138,9 +142,9 @@ static void maidenhead_to_decimal(const std::string& loc, float& lat, float& lon
  * @param precision (optional, defaults to 8) the number of charater for the maidenhead locator
  * @return the locator
  */
-static std::string decimal_to_maidenhead(double lat, double lon, int precision = 8) {
-    lon += 180.0;
-    lat += 90.0;
+static std::string decimal_to_maidenhead(float lat, float lon, int precision = 8) {
+    lon += 180.0f;
+    lat += 90.0f;
 
     int A = lon / 20;
     int B = lat / 10;
@@ -154,14 +158,14 @@ static std::string decimal_to_maidenhead(double lat, double lon, int precision =
     lon -= C * 2;
     lat -= D * 1;
 
-    int E = lon / (5.0 / 60.0);
-    int F = lat / (2.5 / 60.0);
+    int E = lon / (5.0f / 60.0f);
+    int F = lat / (2.5f / 60.0f);
 
-    lon -= E * (5.0 / 60.0);
-    lat -= F * (2.5 / 60.0);
+    lon -= E * (5.0f / 60.0f);
+    lat -= F * (2.5f / 60.0f);
 
-    int G = lon / (5.0 / 600.0);
-    int H = lat / (2.5 / 600.0);
+    int G = lon / (5.0f / 600.0f);
+    int H = lat / (2.5f / 600.0f);
 
     std::string locator;
 
@@ -247,9 +251,9 @@ void init_from_dms(Location& loc) {
  * Convert the provided Loaction to it's latitude string (format <xxx°yy'zz"N>)
  */
 std::string to_latitude_string(const Location& location) {
-    char buffer[16];
+    char buffer[20];
     // Format :  <xxx°yy'zz"N>
-    snprintf(buffer, sizeof(buffer), "%3d\260%02d'%02d\"%c", location.lat_deg, location.lat_min, location.lat_sec, location.south ? 'S' : 'N');
+    sprintf(buffer, "%3d\260%02d'%02d\"%c", location.lat_deg, location.lat_min, location.lat_sec, location.south ? 'S' : 'N');
     return std::string(buffer);
 }
 
@@ -257,12 +261,12 @@ std::string to_latitude_string(const Location& location) {
  * Convert the provided Loaction to it's longitude string (format <xxx°yy'zz"W>)
  */
 std::string to_longitude_string(const Location& location) {
-    char buffer[16];
+    char buffer[20];
     // Format :  <xxx°yy'zz"W>
-    snprintf(buffer, sizeof(buffer), "%3d\260%02d'%02d\"%c", location.long_deg, location.long_min, location.long_sec, location.west ? 'W' : 'E');
+    sprintf(buffer, "%3d\260%02d'%02d\"%c", location.long_deg, location.long_min, location.long_sec, location.west ? 'W' : 'E');
     return std::string(buffer);
 }
 
 }  // namespace ui::external_app::epirb_tx
 
-#endif /*__LOCATION_H__*/
+#endif /*__LOCATION_H__*/

firmware/application/external/epirb_tx/ui_epirb_tx.hpp

@@ -1,404 +1,417 @@
-/*
- * Copyright (C) 2026 Frederic BORRY - ADRASEC 31
- *
- * This file is part of PortaPack.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; see the file COPYING.  If not, write to
- * the Free Software Foundation, Inc., 51 Franklin Street,
- * Boston, MA 02110-1301, USA.
- */
-
-#ifndef __EPIRB_TX_H__
-#define __EPIRB_TX_H__
-
-#include "app_settings.hpp"
-#include "radio_state.hpp"
-#include "ui.hpp"
-#include "ui_widget.hpp"
-#include "ui_navigation.hpp"
-#include "ui_transmitter.hpp"
-
-#include "portapack.hpp"
-#include "message.hpp"
-#include "tonesets.hpp"
-
-#define BEACON_HEXA_SIZE 36
-#define BEACON_HEXA_HALF_SIZE 18
-#define BEACON_SIZE 18
-
-#define AM_TEST_FREQUENCY 121375000
-#define AM_REAL_FREQUENCY 121500000
-
-#define BPSK_FREQUENCY_HAM 433025000
-#define BPSK_FREQUENCY_B 406025000
-#define BPSK_FREQUENCY_C 406028000
-#define BPSK_FREQUENCY_F 406037000
-#define BPSK_FREQUENCY_G 406040000
-#define BPSK_FREQUENCY_J 406049000
-#define BPSK_FREQUENCY_K 406052000
-#define BPSK_FREQUENCY_N 406061000
-#define BPSK_FREQUENCY_O 406064000
-
-namespace ui::external_app::epirb_tx {
-
-enum class BeaconMode {
-    FILE = 0,
-    MODE_MANUAL = 1
-};
-
-enum class BeaconType {
-    EPIRB = 0,
-    ELT = 1,
-    PLB = 2
-};
-
-enum class BeaconProtocol {
-    USER = 0,
-    STANDARD = 1,
-    NATIONAL = 2
-};
-
-enum class AmChannel {
-    TEST = 0,
-    REAL = 1,
-    MANUAL = 2
-};
-
-enum class BpskChannel {
-    HAM = 0,
-    B = 1,
-    C = 2,
-    F = 3,
-    G = 4,
-    J = 5,
-    K = 6,
-    N = 7,
-    O = 8,
-    MANUAL = 10
-};
-
-struct Location {
-    std::string locator;
-    bool south;
-    uint16_t lat_deg;
-    uint8_t lat_min;
-    uint8_t lat_sec;
-    float latitude;
-    bool west;
-    uint16_t long_deg;
-    uint8_t long_min;
-    uint8_t long_sec;
-    float longitude;
-};
-
-struct BeaconParams {
-    BeaconType type;
-    BeaconProtocol protocol;
-    uint32_t country;
-    bool is_test;
-    bool is_internal;
-    bool has_121_5;
-    Location location;
-};
-
-class EPIRBTXAppView : public View {
-   public:
-    EPIRBTXAppView(NavigationView& nav);
-    ~EPIRBTXAppView();
-
-    void focus() override;
-
-    std::string title() const override { return "EPIRB TX"; };
-
-   private:
-    void start_tx();
-    void stop_tx();
-    void update_config();
-    void on_tx_progress(const uint32_t progress, const bool done);
-    void on_timer();
-    void load_beacons();
-    void set_tx_button_state(bool active);
-    std::string frame_to_hex_string(bool start);
-    void generate_frame(BeaconParams params);
-    void update_frame(bool updateConfig = true);
-    void update_bpsk_frequency();
-    void update_am_transmission();
-    void update_mode();
-    void update_location(bool updateLocatorField = true);
-
-    struct Beacon {
-        std::string title{};
-        std::string description{};
-        std::string frame{};
-    };
-    std::vector<Beacon> beacons{};
-    Beacon default_beacon{"Self test", "Serial User Location Protocol", "FFFED0D6E6202820000C29FF51041775302D"};
-
-    BeaconParams beacon_params{BeaconType::ELT, BeaconProtocol::STANDARD, 227, true, true, true, {"JN03RO", false, 0, 0, 0, 0, false, 0, 0, 0, 0}};
-
-    // Currently selected beacon index (from BEACONS.TXT file / options_frame combo)
-    uint32_t selected_beacon{0};
-
-    // Frequency of the transmitter before starting the app (used to restore frequency when leaving)
-    rf::Frequency original_frequency{0};
-    // Frequency of the AM emergency signal
-    rf::Frequency am_frequency{AM_TEST_FREQUENCY};
-    // Frequency of the 406 MHz BPSK signal
-    rf::Frequency bpsk_frequency{BPSK_FREQUENCY_HAM};
-    // Selected am channel
-    uint8_t am_channel{(uint8_t)AmChannel::TEST};
-    // Selected bpsk channel
-    uint8_t bpsk_channel{(uint8_t)BpskChannel::HAM};
-    // Manual AM frequency value
-    rf::Frequency manual_am_frequency{AM_TEST_FREQUENCY};
-    // Manual BPSK frequency value
-    rf::Frequency manual_bpsk_frequency{BPSK_FREQUENCY_HAM};
-
-    // True when using a beacon from the BEACONS.TXT file
-    bool mode_file{false};
-    // True when looping on sending beacons is enabled
-    bool loop_enabled{true};
-    // True if AM emergency signal transmission is enabled
-    bool am_enabled{true};
-    // True if we want to send a new frame each time the user changes the current beacon
-    bool send_on_change{true};
-    // The current locator string
-    std::string locator{"JN03RO"};
-    // The delay between each frame when on loop mode
-    uint32_t delay{50};
-    uint8_t beacon_type{(uint8_t)BeaconType::EPIRB};
-    // Currently selected beacon protocol
-    uint8_t beacon_protocol{(uint8_t)BeaconProtocol::USER};
-    // Currently selected beacon country
-    uint32_t beacon_country{227};
-    // Current beacon's internal state (true for internal location system)
-    bool beacon_internal{true};
-
-    TxRadioState radio_state_{
-        0 /* frequency */,
-        1750000 /* bandwidth */,
-        TONES_SAMPLERATE /* sampling rate */
-    };
-    app_settings::SettingsManager settings_{
-        "tx_epirb",
-        app_settings::Mode::TX,
-        {
-            {"sbeacon"sv, &selected_beacon},
-            {"amfreq"sv, &am_frequency},
-            {"bpskfreq"sv, &bpsk_frequency},
-            {"amchan"sv, &am_channel},
-            {"bpskchan"sv, &bpsk_channel},
-            {"loop"sv, &loop_enabled},
-            {"delay"sv, &delay},
-            {"file"sv, &mode_file},
-            {"am"sv, &am_enabled},
-            {"soc"sv, &send_on_change},
-            {"type"sv, &beacon_type},
-            {"proto"sv, &beacon_protocol},
-            {"country"sv, &beacon_country},
-            {"internal"sv, &beacon_internal},
-            {"locator"sv, &locator},
-        }};
-
-    // Time of the last sent frame
-    uint32_t last_frame_time{0};
-    // True when transmission is enabled
-    bool transmitting{false};
-    // True when transmitting a BPSK frame
-    bool transmitting_bpsk{false};
-    // True when currently looping on sending beacons
-    bool loop{false};
-
-    // Current EPIRBTXDataMessage for baseband
-    EPIRBTXDataMessage epirb_tx_message{};
-
-    const size_t max_text_width = UI_POS_WIDTH_REMAINING(6) / UI_POS_DEFAULT_WIDTH;
-    const size_t max_text_width_ext = UI_POS_WIDTH_REMAINING(0) / UI_POS_DEFAULT_WIDTH;
-
-    Labels labels{
-        {{UI_POS_X(0), UI_POS_Y(0)}, "Source:", Theme::getInstance()->fg_light->foreground},
-        {{UI_POS_X(0), UI_POS_Y(6)}, "Frame:", Theme::getInstance()->fg_light->foreground},
-        {{UI_POS_X(0), UI_POS_Y(10)}, "Next frame in   s.", Theme::getInstance()->fg_light->foreground},
-        {{UI_POS_X(0), UI_POS_Y(12)}, "AM frequency:         MHz", Theme::getInstance()->fg_light->foreground},
-        {{UI_POS_X(0), UI_POS_Y(14)}, "AM   chan.:", Theme::getInstance()->fg_light->foreground},
-        {{UI_POS_X(0), UI_POS_Y(15)}, "BPSK chan.:", Theme::getInstance()->fg_light->foreground},
-        {{UI_POS_X(17), UI_POS_Y(9)}, "s.", Theme::getInstance()->fg_light->foreground}};
-
-    // For file mode
-    Text text_beacon{
-        {UI_POS_X(0), UI_POS_Y(1), UI_POS_WIDTH(7), UI_POS_DEFAULT_HEIGHT},
-        "Beacon:"};
-    // Beacon selection from BEACONS.TXT
-    OptionsField options_frame{
-        {UI_POS_X(7), UI_POS_Y(1)},
-        30,
-        {}};
-    Text text_description_label{
-        {UI_POS_X(0), UI_POS_Y(2), UI_POS_WIDTH(12), UI_POS_DEFAULT_HEIGHT},
-        "Description:"};
-    Text text_description{
-        {UI_POS_X(0), UI_POS_Y(3), UI_POS_WIDTH_REMAINING(0), UI_POS_DEFAULT_HEIGHT},
-        ""};
-    Text text_description_end{
-        {UI_POS_X(0), UI_POS_Y(4), UI_POS_WIDTH_REMAINING(0), UI_POS_DEFAULT_HEIGHT},
-        ""};
-
-    // For manual mode
-    Text text_beacon_type{
-        {UI_POS_X(0), UI_POS_Y(1), UI_POS_WIDTH(8), UI_POS_DEFAULT_HEIGHT},
-        "Type:"};
-    Text text_beacon_country{
-        {UI_POS_X(0), UI_POS_Y(2), UI_POS_WIDTH(8), UI_POS_DEFAULT_HEIGHT},
-        "Country:"};
-    Checkbox checkbox_beacon_internal{
-        {UI_POS_X_RIGHT(12), UI_POS_Y(2)},
-        12,
-        "Internal",
-        true};
-    Text text_beacon_locator{
-        {UI_POS_X(0), UI_POS_Y(3), UI_POS_WIDTH(8), UI_POS_DEFAULT_HEIGHT},
-        "Locator:"};
-    Text text_beacon_latitude{
-        {UI_POS_X(0), UI_POS_Y(4), UI_POS_WIDTH(8), UI_POS_DEFAULT_HEIGHT},
-        "Lat.:"};
-    Text text_beacon_longitude{
-        {UI_POS_X(0), UI_POS_Y(5), UI_POS_WIDTH(8), UI_POS_DEFAULT_HEIGHT},
-        "Long.:"};
-    Text text_beacon_latitude_value{
-        {UI_POS_X(7), UI_POS_Y(4), UI_POS_WIDTH(12), UI_POS_DEFAULT_HEIGHT},
-        ""};
-    Text text_beacon_longitude_value{
-        {UI_POS_X(7), UI_POS_Y(5), UI_POS_WIDTH(12), UI_POS_DEFAULT_HEIGHT},
-        ""};
-    OptionsField options_beacon_type{
-        {UI_POS_X(9), UI_POS_Y(1)},
-        7,
-        {{"EPIRB", (uint8_t)BeaconType::EPIRB},
-         {"ELT", (uint8_t)BeaconType::ELT},
-         {"PLB", (uint8_t)BeaconType::PLB}}};
-    OptionsField options_beacon_protocol{
-        {UI_POS_X(9 + 7), UI_POS_Y(1)},
-        30,
-        {{"User", (uint8_t)BeaconProtocol::USER},
-         {"Standard", (uint8_t)BeaconProtocol::STANDARD},
-         {"National", (uint8_t)BeaconProtocol::NATIONAL}}};
-    OptionsField options_beacon_country{
-        {UI_POS_X(9), UI_POS_Y(2)},
-        7,
-        {{"France", 227},
-         {"USA", 366},
-         {"Germany", 211},
-         {"Russia", 273},
-         {"Spain", 224},
-         {"Japan", 431},
-         {"UK", 232}}};
-    TextField text_field_beacon_locator{
-        {UI_POS_X(9), UI_POS_Y(3), UI_POS_WIDTH(10), UI_POS_DEFAULT_HEIGHT},
-        "JN03RO"};
-    Button button_mangps{
-        {UI_POS_X_RIGHT(9), UI_POS_Y(3), UI_POS_WIDTH(9), UI_POS_HEIGHT(2)},
-        "Set pos."};
-
-    // Mode selection (file/manual)
-    OptionsField options_mode{
-        {UI_POS_X(7), UI_POS_Y(0)},
-        30,
-        {{"File (BEACONS.TXT)", (uint8_t)BeaconMode::FILE},
-         {"Manual (Editor)", (uint8_t)BeaconMode::MODE_MANUAL}}};
-
-    // Frame content
-    Text text_frame{
-        {UI_POS_X(6), UI_POS_Y(6), UI_POS_WIDTH_REMAINING(6), UI_POS_DEFAULT_HEIGHT},
-        ""};
-    Text text_frame_end{
-        {UI_POS_X(6), UI_POS_Y(7), UI_POS_WIDTH_REMAINING(6), UI_POS_DEFAULT_HEIGHT},
-        ""};
-
-    Text text_timeout{
-        {UI_POS_X(14), UI_POS_Y(10), UI_POS_WIDTH(2), UI_POS_DEFAULT_HEIGHT},
-        ""};
-
-    // Transmission settings
-    Checkbox checkbox_loop{
-        {UI_POS_X(0), UI_POS_Y(9)},
-        10,
-        "Resend every",
-        true};
-    NumberField field_delay{
-        {UI_POS_X(15), UI_POS_Y(9)},
-        2,
-        {1, 99},
-        1,
-        ' '};
-    Checkbox checkbox_am{
-        {UI_POS_X(0), UI_POS_Y(11)},
-        10,
-        "AM signal",
-        true};
-    FrequencyField field_am_frequency{
-        {UI_POS_X(13), UI_POS_Y(12)}};
-    Checkbox checkbox_send_on_change{
-        {UI_POS_X(0), UI_POS_Y(13)},
-        14,
-        "Send on change",
-        true};
-    Button button_tx{
-        {UI_POS_X_RIGHT(9), UI_POS_Y(9), UI_POS_WIDTH(9), UI_POS_HEIGHT(2)},
-        "START"};
-    const Style& style_tx_start = *Theme::getInstance()->fg_green;
-    const Style& style_tx_stop = *Theme::getInstance()->fg_red;
-    OptionsField options_am_channel{
-        {UI_POS_X(11), UI_POS_Y(14)},
-        20,
-        {{"121.375 MHz (Test)", 0},
-         {"121.500 MHz /!\\Real", 1},
-         {"Manual", 2}}};
-    OptionsField options_bpsk_channel{
-        {UI_POS_X(11), UI_POS_Y(15)},
-        20,
-        {{"433.025 MHz (Ham)", (uint8_t)BpskChannel::HAM},
-         {"406.025 MHz (B)", (uint8_t)BpskChannel::B},
-         {"406.028 MHz (C)", (uint8_t)BpskChannel::C},
-         {"406.037 MHz (F)", (uint8_t)BpskChannel::F},
-         {"406.040 MHz (G)", (uint8_t)BpskChannel::G},
-         {"406.049 MHz (J)", (uint8_t)BpskChannel::J},
-         {"406.052 MHz (K)", (uint8_t)BpskChannel::K},
-         {"406.061 MHz (N)", (uint8_t)BpskChannel::N},
-         {"406.064 MHz (O)", (uint8_t)BpskChannel::O},
-         {"Manual", (uint8_t)BpskChannel::MANUAL}}};
-
-    // Transmitter view
-    TransmitterView tx_view{
-        (int16_t)UI_POS_Y_BOTTOM(4),
-        10000,
-        12};
-
-    MessageHandlerRegistration message_handler_tx_progress{
-        Message::ID::TXProgress,
-        [this](const Message* const p) {
-            const auto message = *reinterpret_cast<const TXProgressMessage*>(p);
-            this->on_tx_progress(message.progress, message.done);
-        }};
-
-    MessageHandlerRegistration message_handler_frame_sync{
-        // Use frame sync for our applcation timer callback
-        Message::ID::DisplayFrameSync,
-        [this](const Message* const) {
-            this->on_timer();
-        }};
-};
-
-}  // namespace ui::external_app::epirb_tx
-
-#endif /*__EPIRB_TX_H__*/
+/*
+ * Copyright (C) 2026 Frederic BORRY - ADRASEC 31
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __EPIRB_TX_H__
+#define __EPIRB_TX_H__
+
+#include "app_settings.hpp"
+#include "radio_state.hpp"
+#include "ui.hpp"
+#include "ui_widget.hpp"
+#include "ui_navigation.hpp"
+#include "ui_transmitter.hpp"
+
+#include "portapack.hpp"
+#include "message.hpp"
+#include "tonesets.hpp"
+
+#define BEACON_HEXA_SIZE 36
+#define BEACON_HEXA_HALF_SIZE 18
+#define BEACON_SIZE 18
+
+#define AM_TEST_FREQUENCY 121375000
+#define AM_REAL_FREQUENCY 121500000
+
+#define BPSK_FREQUENCY_HAM 433025000
+#define BPSK_FREQUENCY_B 406025000
+#define BPSK_FREQUENCY_C 406028000
+#define BPSK_FREQUENCY_F 406037000
+#define BPSK_FREQUENCY_G 406040000
+#define BPSK_FREQUENCY_J 406049000
+#define BPSK_FREQUENCY_K 406052000
+#define BPSK_FREQUENCY_N 406061000
+#define BPSK_FREQUENCY_O 406064000
+
+namespace ui::external_app::epirb_tx {
+
+enum class BeaconMode {
+    FILE = 0,
+    MODE_MANUAL = 1
+};
+
+enum class BeaconType {
+    EPIRB = 0,
+    ELT = 1,
+    PLB = 2
+};
+
+enum class BeaconProtocol {
+    USER = 0,
+    STANDARD = 1,
+    NATIONAL = 2
+};
+
+enum class AmChannel {
+    TEST = 0,
+    REAL = 1,
+    MANUAL = 2
+};
+
+enum class BpskChannel {
+    HAM = 0,
+    B = 1,
+    C = 2,
+    F = 3,
+    G = 4,
+    J = 5,
+    K = 6,
+    N = 7,
+    O = 8,
+    MANUAL = 10
+};
+
+struct Location {
+    std::string locator;
+    bool south;
+    int16_t lat_deg;
+    int8_t lat_min;
+    int8_t lat_sec;
+    float latitude;
+    bool west;
+    int16_t long_deg;
+    int8_t long_min;
+    int8_t long_sec;
+    float longitude;
+};
+
+struct BeaconParams {
+    BeaconType type;
+    BeaconProtocol protocol;
+    uint32_t country;
+    bool is_test;
+    bool is_internal;
+    bool has_121_5;
+    Location location;
+};
+
+class EPIRBTXAppView : public View {
+   public:
+    EPIRBTXAppView(NavigationView& nav);
+    ~EPIRBTXAppView();
+
+    void focus() override;
+
+    std::string title() const override { return "EPIRB TX"; };
+
+   private:
+    void start_tx();
+    void stop_tx();
+    void update_config();
+    void on_tx_progress(const uint32_t progress, const bool done);
+    void on_timer();
+    void load_beacons();
+    void set_tx_button_state(bool active);
+    std::string frame_to_hex_string(bool start);
+    void generate_frame(BeaconParams params);
+    void update_frame(bool updateConfig = true);
+    void update_bpsk_frequency();
+    void update_am_transmission();
+    void update_mode();
+    void update_location(bool updateLocatorField = true);
+
+    struct Beacon {
+        std::string title{};
+        std::string description{};
+        std::string frame{};
+    };
+    NavigationView& nav_;
+
+    std::vector<Beacon> beacons{};
+    Beacon default_beacon{"Self test", "Serial User Location Protocol", "FFFED0D6E6202820000C29FF51041775302D"};
+
+    BeaconParams beacon_params{BeaconType::ELT, BeaconProtocol::STANDARD, 227, true, true, true, {"JN03RO", false, 0, 0, 0, 0, false, 0, 0, 0, 0}};
+
+    // Currently selected beacon index (from BEACONS.TXT file / options_frame combo)
+    uint32_t selected_beacon{0};
+
+    // Frequency of the transmitter before starting the app (used to restore frequency when leaving)
+    rf::Frequency original_frequency{0};
+    // Frequency of the AM emergency signal
+    rf::Frequency am_frequency{AM_TEST_FREQUENCY};
+    // Frequency of the 406 MHz BPSK signal
+    rf::Frequency bpsk_frequency{BPSK_FREQUENCY_HAM};
+    // Selected am channel
+    uint8_t am_channel{(uint8_t)AmChannel::TEST};
+    // Selected bpsk channel
+    uint8_t bpsk_channel{(uint8_t)BpskChannel::HAM};
+    // Manual AM frequency value
+    rf::Frequency manual_am_frequency{AM_TEST_FREQUENCY};
+    // Manual BPSK frequency value
+    rf::Frequency manual_bpsk_frequency{BPSK_FREQUENCY_HAM};
+
+    // True when using a beacon from the BEACONS.TXT file
+    bool mode_file{false};
+    // True when slideshow is enabled for file mode (change beacon after every transmission)
+    bool slideshow_enabled{false};
+    // True when looping on sending beacons is enabled
+    bool loop_enabled{true};
+    // True if AM emergency signal transmission is enabled
+    bool am_enabled{true};
+    // True if we want to send a new frame each time the user changes the current beacon
+    bool send_on_change{true};
+    // The current locator string
+    std::string locator{"JN03RO"};
+    // The delay between each frame when on loop mode
+    uint32_t delay{50};
+    uint8_t beacon_type{(uint8_t)BeaconType::EPIRB};
+    // Currently selected beacon protocol
+    uint8_t beacon_protocol{(uint8_t)BeaconProtocol::USER};
+    // Currently selected beacon country
+    uint32_t beacon_country{227};
+    // Current beacon's internal state (true for internal location system)
+    bool beacon_internal{true};
+
+    TxRadioState radio_state_{
+        0 /* frequency */,
+        1750000 /* bandwidth */,
+        TONES_SAMPLERATE /* sampling rate */
+    };
+    app_settings::SettingsManager settings_{
+        "tx_epirb",
+        app_settings::Mode::TX,
+        {
+            {"sbeacon"sv, &selected_beacon},
+            {"amfreq"sv, &am_frequency},
+            {"bpskfreq"sv, &bpsk_frequency},
+            {"amchan"sv, &am_channel},
+            {"bpskchan"sv, &bpsk_channel},
+            {"loop"sv, &loop_enabled},
+            {"delay"sv, &delay},
+            {"file"sv, &mode_file},
+            {"slideshow"sv, &slideshow_enabled},
+            {"am"sv, &am_enabled},
+            {"soc"sv, &send_on_change},
+            {"type"sv, &beacon_type},
+            {"proto"sv, &beacon_protocol},
+            {"country"sv, &beacon_country},
+            {"internal"sv, &beacon_internal},
+            {"locator"sv, &locator},
+        }};
+
+    // Time of the last sent frame
+    uint32_t last_frame_time{0};
+    // True when transmission is enabled
+    bool transmitting{false};
+    // True when transmitting a BPSK frame
+    bool transmitting_bpsk{false};
+    // True when currently looping on sending beacons
+    bool loop{false};
+
+    // Current EPIRBTXDataMessage for baseband
+    EPIRBTXDataMessage epirb_tx_message{};
+
+    const size_t max_text_width = UI_POS_WIDTH_REMAINING(6) / UI_POS_DEFAULT_WIDTH;
+    const size_t max_text_width_ext = UI_POS_WIDTH_REMAINING(0) / UI_POS_DEFAULT_WIDTH;
+
+    Labels labels{
+        {{UI_POS_X(0), UI_POS_Y(0)}, "Source:", Theme::getInstance()->fg_light->foreground},
+        {{UI_POS_X(0), UI_POS_Y(6)}, "Frame:", Theme::getInstance()->fg_light->foreground},
+        {{UI_POS_X(0), UI_POS_Y(10)}, "Next frame in   s.", Theme::getInstance()->fg_light->foreground},
+        {{UI_POS_X(0), UI_POS_Y(12)}, "AM frequency:         MHz", Theme::getInstance()->fg_light->foreground},
+        {{UI_POS_X(0), UI_POS_Y(14)}, "AM   chan.:", Theme::getInstance()->fg_light->foreground},
+        {{UI_POS_X(0), UI_POS_Y(15)}, "BPSK chan.:", Theme::getInstance()->fg_light->foreground},
+        {{UI_POS_X(17), UI_POS_Y(9)}, "s.", Theme::getInstance()->fg_light->foreground}};
+
+    // For file mode
+    struct FileModeWidgets {
+        Text text_beacon{
+            {UI_POS_X(0), UI_POS_Y(1), UI_POS_WIDTH(7), UI_POS_DEFAULT_HEIGHT},
+            "Beacon:"};
+        // Beacon selection from BEACONS.TXT
+        OptionsField options_frame{
+            {UI_POS_X(7), UI_POS_Y(1)},
+            30,
+            {}};
+        Text text_description_label{
+            {UI_POS_X(0), UI_POS_Y(2), UI_POS_WIDTH(12), UI_POS_DEFAULT_HEIGHT},
+            "Description:"};
+        Text text_description{
+            {UI_POS_X(0), UI_POS_Y(3), UI_POS_WIDTH_REMAINING(0), UI_POS_DEFAULT_HEIGHT},
+            ""};
+        Text text_description_end{
+            {UI_POS_X(0), UI_POS_Y(4), UI_POS_WIDTH_REMAINING(0), UI_POS_DEFAULT_HEIGHT},
+            ""};
+        Checkbox checkbox_slideshow{
+            {UI_POS_X(0), UI_POS_Y(5)},
+            9,
+            "Slideshow",
+            true};
+    };
+    std::unique_ptr<FileModeWidgets> file_mode_ui{};
+
+    // For manual mode
+    Text text_beacon_type{
+        {UI_POS_X(0), UI_POS_Y(1), UI_POS_WIDTH(8), UI_POS_DEFAULT_HEIGHT},
+        "Type:"};
+    Text text_beacon_country{
+        {UI_POS_X(0), UI_POS_Y(2), UI_POS_WIDTH(8), UI_POS_DEFAULT_HEIGHT},
+        "Country:"};
+    Checkbox checkbox_beacon_internal{
+        {UI_POS_X_RIGHT(12), UI_POS_Y(2)},
+        12,
+        "Internal",
+        true};
+    Text text_beacon_locator{
+        {UI_POS_X(0), UI_POS_Y(3), UI_POS_WIDTH(8), UI_POS_DEFAULT_HEIGHT},
+        "Locator:"};
+    Text text_beacon_latitude{
+        {UI_POS_X(0), UI_POS_Y(4), UI_POS_WIDTH(8), UI_POS_DEFAULT_HEIGHT},
+        "Lat.:"};
+    Text text_beacon_longitude{
+        {UI_POS_X(0), UI_POS_Y(5), UI_POS_WIDTH(8), UI_POS_DEFAULT_HEIGHT},
+        "Long.:"};
+    Text text_beacon_latitude_value{
+        {UI_POS_X(7), UI_POS_Y(4), UI_POS_WIDTH(12), UI_POS_DEFAULT_HEIGHT},
+        ""};
+    Text text_beacon_longitude_value{
+        {UI_POS_X(7), UI_POS_Y(5), UI_POS_WIDTH(12), UI_POS_DEFAULT_HEIGHT},
+        ""};
+    OptionsField options_beacon_type{
+        {UI_POS_X(9), UI_POS_Y(1)},
+        7,
+        {{"EPIRB", (uint8_t)BeaconType::EPIRB},
+         {"ELT", (uint8_t)BeaconType::ELT},
+         {"PLB", (uint8_t)BeaconType::PLB}}};
+    OptionsField options_beacon_protocol{
+        {UI_POS_X(9 + 7), UI_POS_Y(1)},
+        30,
+        {{"User", (uint8_t)BeaconProtocol::USER},
+         {"Standard", (uint8_t)BeaconProtocol::STANDARD},
+         {"National", (uint8_t)BeaconProtocol::NATIONAL}}};
+    OptionsField options_beacon_country{
+        {UI_POS_X(9), UI_POS_Y(2)},
+        7,
+        {{"France", 227},
+         {"USA", 366},
+         {"Germany", 211},
+         {"Russia", 273},
+         {"Spain", 224},
+         {"Japan", 431},
+         {"UK", 232}}};
+    TextField text_field_beacon_locator{
+        {UI_POS_X(9), UI_POS_Y(3), UI_POS_WIDTH(10), UI_POS_DEFAULT_HEIGHT},
+        "JN03RO"};
+    Button button_mangps{
+        {UI_POS_X_RIGHT(9), UI_POS_Y(3), UI_POS_WIDTH(9), UI_POS_HEIGHT(2)},
+        "Set pos."};
+
+    // Mode selection (file/manual)
+    OptionsField options_mode{
+        {UI_POS_X(7), UI_POS_Y(0)},
+        30,
+        {{"File (BEACONS.TXT)", (uint8_t)BeaconMode::FILE},
+         {"Manual (Editor)", (uint8_t)BeaconMode::MODE_MANUAL}}};
+
+    // Frame content
+    Text text_frame{
+        {UI_POS_X(6), UI_POS_Y(6), UI_POS_WIDTH_REMAINING(6), UI_POS_DEFAULT_HEIGHT},
+        ""};
+    Text text_frame_end{
+        {UI_POS_X(6), UI_POS_Y(7), UI_POS_WIDTH_REMAINING(6), UI_POS_DEFAULT_HEIGHT},
+        ""};
+
+    Text text_timeout{
+        {UI_POS_X(14), UI_POS_Y(10), UI_POS_WIDTH(2), UI_POS_DEFAULT_HEIGHT},
+        ""};
+
+    // Transmission settings
+    Checkbox checkbox_loop{
+        {UI_POS_X(0), UI_POS_Y(9)},
+        10,
+        "Resend every",
+        true};
+    NumberField field_delay{
+        {UI_POS_X(15), UI_POS_Y(9)},
+        2,
+        {1, 99},
+        1,
+        ' '};
+    Checkbox checkbox_am{
+        {UI_POS_X(0), UI_POS_Y(11)},
+        10,
+        "AM signal",
+        true};
+    FrequencyField field_am_frequency{
+        {UI_POS_X(13), UI_POS_Y(12)}};
+    Checkbox checkbox_send_on_change{
+        {UI_POS_X(0), UI_POS_Y(13)},
+        14,
+        "Send on change",
+        true};
+    Button button_tx{
+        {UI_POS_X_RIGHT(9), UI_POS_Y(9), UI_POS_WIDTH(9), UI_POS_HEIGHT(2)},
+        "START"};
+    const Style& style_tx_start = *Theme::getInstance()->fg_green;
+    const Style& style_tx_stop = *Theme::getInstance()->fg_red;
+    OptionsField options_am_channel{
+        {UI_POS_X(11), UI_POS_Y(14)},
+        20,
+        {{"121.375 MHz (Test)", 0},
+         {"121.500 MHz /!\\Real", 1},
+         {"Manual", 2}}};
+    OptionsField options_bpsk_channel{
+        {UI_POS_X(11), UI_POS_Y(15)},
+        20,
+        {{"433.025 MHz (Ham)", (uint8_t)BpskChannel::HAM},
+         {"406.025 MHz (B)", (uint8_t)BpskChannel::B},
+         {"406.028 MHz (C)", (uint8_t)BpskChannel::C},
+         {"406.037 MHz (F)", (uint8_t)BpskChannel::F},
+         {"406.040 MHz (G)", (uint8_t)BpskChannel::G},
+         {"406.049 MHz (J)", (uint8_t)BpskChannel::J},
+         {"406.052 MHz (K)", (uint8_t)BpskChannel::K},
+         {"406.061 MHz (N)", (uint8_t)BpskChannel::N},
+         {"406.064 MHz (O)", (uint8_t)BpskChannel::O},
+         {"Manual", (uint8_t)BpskChannel::MANUAL}}};
+
+    // Transmitter view
+    TransmitterView tx_view{
+        (int16_t)UI_POS_Y_BOTTOM(4),
+        10000,
+        12};
+
+    MessageHandlerRegistration message_handler_tx_progress{
+        Message::ID::TXProgress,
+        [this](const Message* const p) {
+            const auto message = *reinterpret_cast<const TXProgressMessage*>(p);
+            this->on_tx_progress(message.progress, message.done);
+        }};
+
+    MessageHandlerRegistration message_handler_frame_sync{
+        // Use frame sync for our applcation timer callback
+        Message::ID::DisplayFrameSync,
+        [this](const Message* const) {
+            this->on_timer();
+        }};
+};
+
+}  // namespace ui::external_app::epirb_tx
+
+#endif /*__EPIRB_TX_H__*/

firmware/application/external/external.cmake

@@ -263,6 +263,10 @@ set(EXTCPPSRC
 	#epirb_rx 168 byte flash 
 	external/epirb_rx/main.cpp
 	external/epirb_rx/ui_epirb_rx.cpp
+	external/epirb_rx/ui_beaconlist.cpp
+	external/epirb_rx/beacon_db.cpp
+	external/epirb_rx/beacon.cpp
+	external/epirb_rx/location.cpp
 
 	#epirb_tx
 	external/epirb_tx/main.cpp
@@ -353,7 +357,11 @@ set(EXTCPPSRC
 
 	#two_tone_rx
 	external/two_tone_rx/main.cpp
-	external/two_tone_rx/ui_two_tone_rx.cpp 
+	external/two_tone_rx/ui_two_tone_rx.cpp
+
+	#hard_reset
+	external/hard_reset/main.cpp
+	external/hard_reset/ui_hard_reset.cpp
 )
 
 set(EXTAPPLIST
@@ -442,6 +450,7 @@ set(EXTAPPLIST
 	p25_tx
 	two_tone_pager
 	two_tone_rx
+	hard_reset
 )
 
 # sdusb has type conflicts with PRALINE (HackRF Pro) - add only for non-PRALINE builds

firmware/application/external/external.ld

@@ -109,6 +109,7 @@ MEMORY
     ram_external_app_two_tone_pager        (rwx) : org = 0xAE040000, len = 32k
     ram_external_app_two_tone_rx           (rwx) : org = 0xAE050000, len = 32k
     ram_external_app_flex_tx               (rwx) : org = 0xAE060000, len = 32k
+    ram_external_app_hard_reset            (rwx) : org = 0xAE070000, len = 32k
 }
 
 SECTIONS
@@ -628,4 +629,10 @@ SECTIONS
         KEEP(*(.external_app.app_flex_tx.application_information));
         *(*ui*external_app*flex_tx*);
     } > ram_external_app_flex_tx
+
+    .external_app_hard_reset : ALIGN(4) SUBALIGN(4)
+    {
+        KEEP(*(.external_app.app_hard_reset.application_information));
+        *(*ui*external_app*hard_reset*);
+    } > ram_external_app_hard_reset
 }

firmware/application/external/hard_reset/main.cpp

@@ -0,0 +1,87 @@
+/*
+ * Copyright (C) 2026 Pezsma
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "ui.hpp"
+#include "ui_hard_reset.hpp"
+#include "ui_navigation.hpp"
+#include "external_app.hpp"
+
+namespace ui::external_app::hard_reset {
+
+void initialize_app(NavigationView& nav) {
+    nav.push<HardResetView>();
+}
+
+}  // namespace ui::external_app::hard_reset
+
+extern "C" {
+
+__attribute__((section(".external_app.app_hard_reset.application_information"), used))
+application_information_t _application_information_hard_reset = {
+    /*.memory_location = */ (uint8_t*)0x00000000,
+    /*.externalAppEntry = */ ui::external_app::hard_reset::initialize_app,
+    /*.header_version = */ CURRENT_HEADER_VERSION,
+    /*.app_version = */ VERSION_MD5,
+
+    /*.app_name = */ "Hard Reset",
+    /*.bitmap_data = */ {
+        0x00,
+        0x00,
+        0x00,
+        0x00,
+        0xC0,
+        0x01,
+        0xFF,
+        0x7F,
+        0xFF,
+        0x7F,
+        0x56,
+        0x35,
+        0x56,
+        0x35,
+        0x56,
+        0x35,
+        0x56,
+        0x35,
+        0x56,
+        0x35,
+        0x56,
+        0x35,
+        0x56,
+        0x35,
+        0x56,
+        0x35,
+        0xFE,
+        0x3F,
+        0xFE,
+        0x3F,
+        0x00,
+        0x00,
+    },
+    /*.icon_color = */ ui::Color::red().v,
+    /*.menu_location = */ app_location_t::SETTINGS,
+    /*.desired_menu_position = */ -1,
+
+    /*.m4_app_tag = portapack::spi_flash::image_tag_none */ {0, 0, 0, 0},
+    /*.m4_app_offset = */ 0x00000000,  // will be filled at compile time
+};
+
+}  // extern "C"

firmware/application/external/hard_reset/ui_hard_reset.cpp

@@ -0,0 +1,239 @@
+/*
+ * Copyright (C) 2026 Pezsma
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "ui_hard_reset.hpp"
+
+#include "portapack.hpp"
+#include "file.hpp"
+#include "file_path.hpp"
+#include "ui_touch_calibration.hpp"
+#include "ui_external_items_menu_loader.hpp"
+#include "app_settings.hpp"
+
+using namespace portapack;
+namespace pmem = portapack::persistent_memory;
+
+namespace ui::external_app::hard_reset {
+HardResetView::HardResetView(ui::NavigationView& nav)
+    : nav_(nav) {
+    add_children({&chk_settings_file,
+                  &chk_bad_apps,
+                  &chk_pmem,
+                  &txt_settings_file_count,
+                  &txt_bad_apps_count,
+                  &btn_yes,
+                  &btn_no,
+                  &text,
+                  &txt_wait});
+
+    txt_wait.set_style(Theme::getInstance()->warning_dark);
+
+    btn_yes.on_select = [this](Button&) {
+        {  // to  free painter after draw
+            Painter painter;
+            txt_wait.hidden(false);
+            text.hidden(true);
+            painter.fill_rectangle(text.screen_rect(), this->style().background);
+            txt_wait.paint(painter);
+        }
+        if (chk_settings_file.value()) {
+            clear_settings_folder();
+        }
+        if (chk_bad_apps.value()) {
+            delete_bad_apps(apps_dir);
+        }
+        if (chk_pmem.value()) {
+            pmem::cache::defaults();
+            StatusRefreshMessage message{};
+            EventDispatcher::send_message(message);
+            nav_.replace<TouchCalibrationView>();
+        } else {
+            nav_.pop();
+        }
+    };
+
+    btn_no.on_select = [this](Button&) {
+        nav_.pop();
+    };
+    txt_settings_file_count.set_style(Theme::getInstance()->fg_magenta);
+    txt_bad_apps_count.set_style(Theme::getInstance()->fg_magenta);
+
+    signal_token_tick_second = rtc_time::signal_tick_second += [this]() {
+        this->calculate();
+        rtc_time::signal_tick_second -= signal_token_tick_second;
+    };
+}
+
+HardResetView::~HardResetView() {
+    rtc_time::signal_tick_second -= signal_token_tick_second;
+}
+
+void HardResetView::calculate() {
+    settings_file_count = count_ini_files_in_directory(settings_dir);
+    txt_settings_file_count.set(to_string_dec_uint(settings_file_count));
+
+    bad_apps_count = count_bad_apps(apps_dir);
+    txt_bad_apps_count.set(to_string_dec_uint(bad_apps_count));
+
+    if (settings_file_count > 0) {
+        chk_settings_file.set_value(true);
+    }
+    if (bad_apps_count > 0) {
+        chk_bad_apps.set_value(true);
+    }
+    chk_pmem.set_value(true);
+    txt_wait.hidden(true);
+    text.set("Warning! Checked items will beerased (bad apps, P.Mem,      settings). Uncheck to keep.   Touch calibration is required only if P.Mem is reset.");
+}
+
+void HardResetView::focus() {
+    btn_no.focus();
+}
+
+uint16_t HardResetView::count_ini_files_in_directory(const std::filesystem::path& dir_path) {
+    int count = 0;
+    for (const auto& entry : std::filesystem::directory_iterator(dir_path, u"*.ini")) {
+        if (std::filesystem::is_regular_file(entry.status())) {
+            count++;
+        }
+    }
+    return count;
+}
+
+void HardResetView::delete_ini_files_in_directory(const std::filesystem::path& dir_path) {
+    bool found_and_deleted;
+    do {
+        found_and_deleted = false;
+        for (const auto& entry : std::filesystem::directory_iterator(dir_path, u"*.ini")) {
+            if (std::filesystem::is_regular_file(entry.status())) {
+                auto full_path = dir_path / entry.path().filename();
+                delete_file(full_path);
+                found_and_deleted = true;
+                break;  // iterator can become invalid if the dir is modified, so break and restart the loop after deletion
+            }
+        }
+    } while (found_and_deleted);
+}
+
+void HardResetView::clear_settings_folder() {
+    delete_ini_files_in_directory(settings_dir);
+}
+
+bool HardResetView::is_bad_app(const std::filesystem::path& file_path, bool is_ppma) {
+    File app;
+    if (app.open(file_path)) {
+        return true;
+    }
+    bool is_bad = false;
+    if (is_ppma) {
+        application_information_t app_info = {};
+        auto readResult = app.read(&app_info, sizeof(application_information_t));
+        if (!readResult || readResult.value() != sizeof(application_information_t)) {
+            is_bad = true;
+        } else if (app_info.header_version != CURRENT_HEADER_VERSION) {
+            is_bad = true;
+        } else if (VERSION_MD5 != app_info.app_version) {
+            is_bad = true;
+        } else {
+            // --- CHECKSUM VALIDATION ---
+            // Similar to run_external_app: read through the file and calculate the checksum
+            app.seek(0);
+            uint32_t checksum = 0;
+            uint8_t buffer[512];  // 512-byte buffer to conserve RAM
+
+            while (true) {
+                auto res = app.read(buffer, sizeof(buffer));
+                if (!res) break;
+                checksum += simple_checksum((uint32_t)buffer, res.value());
+                if (res.value() < sizeof(buffer)) break;  // End of file
+            }
+
+            if (checksum != EXT_APP_EXPECTED_CHECKSUM) {
+                is_bad = true;  // The file body is corrupted / truncated!
+            }
+        }
+    } else {
+        // PPMP validation
+        standalone_application_information_t app_info = {};
+        auto readResult = app.read(&app_info, sizeof(standalone_application_information_t));
+        if (!readResult || readResult.value() != sizeof(standalone_application_information_t)) {
+            is_bad = true;
+        } else if (app_info.header_version > CURRENT_STANDALONE_APPLICATION_API_VERSION) {
+            is_bad = true;
+        }
+    }
+
+    app.close();
+    return is_bad;
+}
+
+uint16_t HardResetView::count_bad_apps(const std::filesystem::path& apps_dir) {
+    int bad_count = 0;
+
+    // Check .ppma files
+    for (const auto& entry : std::filesystem::directory_iterator(apps_dir, u"*.ppma")) {
+        auto file_path = apps_dir / entry.path();
+        if (is_bad_app(file_path, true)) {
+            bad_count++;
+        }
+    }
+
+    // Check .ppmp files
+    for (const auto& entry : std::filesystem::directory_iterator(apps_dir, u"*.ppmp")) {
+        auto file_path = apps_dir / entry.path();
+        if (is_bad_app(file_path, false)) {
+            bad_count++;
+        }
+    }
+
+    return bad_count;
+}
+
+void HardResetView::delete_bad_apps(const std::filesystem::path& apps_dir) {
+    // Delete bad .ppma files
+    bool deleted_something;
+    do {
+        deleted_something = false;
+        for (const auto& entry : std::filesystem::directory_iterator(apps_dir, u"*.ppma")) {
+            auto file_path = apps_dir / entry.path();
+            if (is_bad_app(file_path, true)) {
+                delete_file(file_path);
+                deleted_something = true;
+                break;
+            }
+        }
+    } while (deleted_something);
+
+    // Delete bad .ppmp files
+    do {
+        deleted_something = false;
+        for (const auto& entry : std::filesystem::directory_iterator(apps_dir, u"*.ppmp")) {
+            auto file_path = apps_dir / entry.path();
+            if (is_bad_app(file_path, false)) {
+                delete_file(file_path);
+                deleted_something = true;
+                break;
+            }
+        }
+    } while (deleted_something);
+}
+
+}  // namespace ui::external_app::hard_reset

firmware/application/external/hard_reset/ui_hard_reset.hpp

@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 2026 Pezsma
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __UI_HARD_RESET_H__
+#define __UI_HARD_RESET_H__
+
+#include "ui_navigation.hpp"
+#include "signal.hpp"
+using namespace ui;
+
+namespace ui::external_app::hard_reset {
+
+class HardResetView : public ui::View {
+   public:
+    HardResetView(ui::NavigationView& nav);
+    ~HardResetView();
+
+    std::string title() const override { return "Hard Reset"; }
+    void focus() override;
+
+   private:
+    ui::NavigationView& nav_;
+
+    SignalToken signal_token_tick_second{};
+    ui::Button btn_yes{{UI_POS_X(1), UI_POS_Y_BOTTOM(4), UI_POS_WIDTH(11), UI_POS_HEIGHT(2)}, "Erase sel."};
+    ui::Button btn_no{{UI_POS_X_RIGHT(11), UI_POS_Y_BOTTOM(4), UI_POS_WIDTH(10), UI_POS_HEIGHT(2)}, "No"};
+    ui::Text text{{UI_POS_X(0), UI_POS_Y(6), UI_POS_MAXWIDTH, UI_POS_HEIGHT(5)}, ""};
+    Checkbox chk_settings_file{{UI_POS_X(1), UI_POS_Y(1)}, 14, "Settings file:", true};
+    Checkbox chk_bad_apps{{UI_POS_X(1), UI_POS_Y(2.5)}, 9, "Bad apps:", true};
+    Checkbox chk_pmem{{UI_POS_X(1), UI_POS_Y(4)}, 11, "P.mem reset", true};
+
+    Text txt_settings_file_count{{UI_POS_X(19), UI_POS_Y(1), UI_POS_WIDTH(5), UI_POS_HEIGHT(1)}, "?"};
+    Text txt_bad_apps_count{{UI_POS_X(14), UI_POS_Y(2.5), UI_POS_WIDTH(5), UI_POS_HEIGHT(1)}, "?"};
+
+    Text txt_wait{{UI_POS_X_CENTER(14), UI_POS_Y(8), UI_POS_WIDTH(14), UI_POS_HEIGHT(1)}, "Please wait..."};
+
+    uint16_t count_ini_files_in_directory(const std::filesystem::path& dir_path);
+    void delete_ini_files_in_directory(const std::filesystem::path& dir_path);
+    void clear_settings_folder();
+    void calculate();
+    bool is_bad_app(const std::filesystem::path& file_path, bool is_ppma);
+    uint16_t count_bad_apps(const std::filesystem::path& apps_dir);
+    void delete_bad_apps(const std::filesystem::path& apps_dir);
+
+    uint16_t settings_file_count = 0;
+    uint16_t bad_apps_count = 0;
+};
+
+}  // namespace ui::external_app::hard_reset
+
+#endif  // __UI_HARD_RESET_H__

firmware/application/radio.cpp

@@ -50,7 +50,7 @@ using namespace hackrf::one;
 
 #include "portapack.hpp"
 #include "portapack_persistent_memory.hpp"
-
+#include "baseband_api.hpp"
 #include "hal.h"  // For LPC_SGPIO
 
 #include <array>
@@ -413,6 +413,19 @@ void set_rx_max283x_iq_phase_calibration(const size_t v) {
 }
 
 void disable() {
+    if (direction == rf::Direction::Transmit && baseband::is_image_running()) {
+        static constexpr uint32_t radio_tx_drain_timeout_ms = 100;
+        shared_memory.radio_tx_drain = 1;  // Request drain of the current DMA queue.
+        for (uint32_t waited_ms = 0;
+             shared_memory.radio_tx_drain && (waited_ms < radio_tx_drain_timeout_ms);
+             ++waited_ms) {
+            chThdSleepMilliseconds(1);
+        }
+    }
+    /* Never allow shutdown to block indefinitely waiting for a drain
+     * acknowledgement that may never arrive in normal operation. */
+    shared_memory.radio_tx_drain = 0;
+
     set_antenna_bias(false);
     baseband_codec.set_mode(max5864::Mode::Shutdown);
 #ifdef PRALINE

firmware/application/usb_serial_cdc.c

@@ -20,9 +20,31 @@
  */
 
 #include "usb_serial_cdc.h"
+#include "usb_serial_descriptor.h"
 #include "usb_serial_endpoints.h"
 #include "usb_serial_event.hpp"
 
+#include <string.h>
+
+/* Defined in hackrf/firmware/hackrf_usb/usb_device.c. After upstream commit
+ * 85dfacf6 ("Universalize: firmware/hackrf_usb"), the global `usb_device` is
+ * left zero-initialized and is populated at runtime from per-board
+ * `usb_device_*` constants inside hackrf_usb.c. Mayhem does not link
+ * hackrf_usb.c, so we must populate `usb_device` ourselves before usb_run().
+ * The descriptor fields are const-qualified, so we follow the upstream
+ * pattern of memcpy from a const template. */
+extern usb_configuration_t* usb_configurations[];
+
+static const usb_device_t usb_device_mayhem = {
+    .descriptor = usb_descriptor_device,
+    .descriptor_strings = usb_descriptor_strings,
+    .qualifier_descriptor = usb_descriptor_device_qualifier,
+    .configurations = &usb_configurations,
+    .configuration = 0,
+    .wcid_string_descriptor = wcid_string_descriptor,
+    .wcid_feature_descriptor = wcid_feature_descriptor,
+};
+
 uint32_t EVT_MASK_USB = EVENT_MASK(8);
 
 extern void usb0_isr(void);
@@ -85,6 +107,8 @@ void usb_configuration_changed(usb_device_t* const device) {
 }
 
 void setup_usb_serial_controller(void) {
+    memcpy(&usb_device, &usb_device_mayhem, sizeof(usb_device_mayhem));
+
     usb_set_configuration_changed_cb(usb_configuration_changed);
     usb_peripheral_reset();
 
@@ -97,7 +121,10 @@ void setup_usb_serial_controller(void) {
     usb_queue_init(&usb_endpoint_bulk_in_queue);
 
     usb_endpoint_init(&usb_endpoint_control_out, false);
-    usb_endpoint_init(&usb_endpoint_control_in, false);
+    /* Control IN needs ZLP for descriptor reads whose length is a multiple of
+     * the max packet size (otherwise the host hangs waiting for the transfer
+     * to terminate). Matches upstream hackrf_usb.c after commit db73ecbf. */
+    usb_endpoint_init(&usb_endpoint_control_in, true);
 
     usb_run(&usb_device);
 }

firmware/baseband/CMakeLists.txt

@@ -217,7 +217,25 @@ set(CPPWARN "-Wall -Wextra")
 if(NOT DEFINED BOARD)
     set(BOARD "HACKRF_ONE")
 endif()
-set(DDEFS "-DLPC43XX -DLPC43XX_M4 -D__NEWLIB__ -D${BOARD} -DTOOLCHAIN_GCC -DTOOLCHAIN_GCC_ARM -D_RANDOM_TCC=0 -D'VERSION_STRING=\"${VERSION}\"'")
+
+# Upstream hackrf headers now gate on IS_* macros normally populated by
+# hackrf/firmware/platform-detect.cmake. We don't include that here, so derive
+# the IS_* set from BOARD ourselves. IS_H1_R9 is forced to 0 (compile-time
+# constant) so `if (IS_H1_R9)` branches resolve without needing the runtime
+# detected_platform() symbol, which mayhem doesn't link in.
+if(BOARD STREQUAL "HACKRF_ONE")
+    set(BOARD_IS_DEFS "-DIS_HACKRF_ONE=1 -DIS_NOT_PRALINE=1 -DIS_H1_R9=0 -DIS_NOT_H1_R9=1 -DIS_NOT_RAD1O=1 -DIS_NOT_JAWBREAKER=1 -DIS_H1_OR_PRALINE=1 -DIS_H1_OR_RAD1O=1 -DIS_H1_OR_JAWBREAKER=1 -DIS_EXPANSION_COMPATIBLE=1")
+elseif(BOARD STREQUAL "PRALINE")
+    set(BOARD_IS_DEFS "-DIS_PRALINE=1 -DIS_NOT_HACKRF_ONE=1 -DIS_NOT_H1_R9=1 -DIS_NOT_RAD1O=1 -DIS_NOT_JAWBREAKER=1 -DIS_H1_OR_PRALINE=1 -DIS_FOUR_LEDS=1 -DIS_EXPANSION_COMPATIBLE=1")
+elseif(BOARD STREQUAL "RAD1O")
+    set(BOARD_IS_DEFS "-DIS_RAD1O=1 -DIS_NOT_PRALINE=1 -DIS_NOT_HACKRF_ONE=1 -DIS_NOT_H1_R9=1 -DIS_NOT_JAWBREAKER=1 -DIS_H1_OR_RAD1O=1 -DIS_FOUR_LEDS=1")
+elseif(BOARD STREQUAL "JAWBREAKER")
+    set(BOARD_IS_DEFS "-DIS_JAWBREAKER=1 -DIS_NOT_PRALINE=1 -DIS_NOT_HACKRF_ONE=1 -DIS_NOT_H1_R9=1 -DIS_NOT_RAD1O=1 -DIS_H1_OR_JAWBREAKER=1")
+else()
+    set(BOARD_IS_DEFS "")
+endif()
+
+set(DDEFS "-DLPC43XX -DLPC43XX_M4 -D__NEWLIB__ -D${BOARD} ${BOARD_IS_DEFS} -DTOOLCHAIN_GCC -DTOOLCHAIN_GCC_ARM -D_RANDOM_TCC=0 -D'VERSION_STRING=\"${VERSION}\"'")
 
 # List all default ASM defines here, like -D_DEBUG=1
 set(DADEFS)
@@ -765,7 +783,6 @@ set(MODE_CPPSRC
 	${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
@@ -773,7 +790,6 @@ set(MODE_CPPSRC
 	${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

firmware/baseband/baseband_thread.cpp

@@ -90,7 +90,7 @@ void BasebandThread::run() {
 #ifdef PRALINE
     shared_memory.m4_streaming_marker = 0xAA;  // Phase 0 instrumentation
 #endif
-
+    uint8_t buffer_drained = 0;  // to count how many dma buffers we already emptied
     while (!chThdShouldTerminate()) {
 #ifdef PRALINE
         shared_memory.m4_baseband_loops++;  // Phase 0 instrumentation
@@ -117,11 +117,20 @@ void BasebandThread::run() {
             }
 
             if (baseband_processor_) {
-                baseband_processor_->execute(buffer);
+                if (shared_memory.radio_tx_drain == 0) {  // only generate if not draining.
+                    baseband_processor_->execute(buffer);
+                }
+            }
+            if (shared_memory.radio_tx_drain == 1) {
+                buffer_drained++;
+                if (buffer_drained >= 4) {             // We have 4 buffers, so after draining 4 we should be safe to disable.
+                    shared_memory.radio_tx_drain = 0;  // Clear the drain request to allow normal operation to resume.
+                    buffer_drained = 0;
+                }
             }
         }
     }
-
+    shared_memory.radio_tx_drain = 0;
     i2s::i2s0::tx_mute();
     baseband::dma::disable();
     baseband_sgpio.streaming_disable();

firmware/baseband/proc_epirb.cpp

@@ -1,96 +1,272 @@
-/*
- * Copyright (C) 2024 EPIRB Receiver Implementation
- *
- * 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 "proc_epirb.hpp"
-
-#include "portapack_shared_memory.hpp"
-
-#include "dsp_fir_taps.hpp"
-
-#include "event_m4.hpp"
-#include <ch.h>
-
-EPIRBProcessor::EPIRBProcessor() {
-    // Configure the decimation filters for narrowband EPIRB signal
-    // Target: Reduce 2.457600 MHz to ~38.4 kHz for 400 bps processing
-    decim_0.configure(taps_11k0_decim_0.taps);
-    decim_1.configure(taps_11k0_decim_1.taps);
-    baseband_thread.start();
-}
-
-void EPIRBProcessor::execute(const buffer_c8_t& buffer) {
-    /* 2.4576MHz, 2048 samples */
-
-    // First decimation stage: 2.4576 MHz -> 307.2 kHz
-    const auto decim_0_out = decim_0.execute(buffer, dst_buffer);
-
-    // Second decimation stage: 307.2 kHz -> 38.4 kHz
-    const auto decim_1_out = decim_1.execute(decim_0_out, dst_buffer);
-    const auto decimator_out = decim_1_out;
-
-    /* 38.4kHz, 32 samples (approximately) */
-    feed_channel_stats(decimator_out);
-
-    // Process each decimated sample through the matched filter
-    for (size_t i = 0; i < decimator_out.count; i++) {
-        // Apply matched filter for BPSK demodulation
-        if (mf.execute_once(decimator_out.p[i])) {
-            // Feed symbol to clock recovery when matched filter triggers
-            clock_recovery(mf.get_output());
-        }
-    }
-}
-
-void EPIRBProcessor::consume_symbol(const float raw_symbol) {
-    // BPSK demodulation: positive = 1, negative = 0
-    const uint_fast8_t sliced_symbol = (raw_symbol >= 0.0f) ? 1 : 0;
-
-    // Decode bi-phase L encoding manually
-    // In bi-phase L: 0 = no transition, 1 = transition
-    // This is a simple edge detector
-    const auto decoded_symbol = sliced_symbol ^ last_symbol;
-    last_symbol = sliced_symbol;
-
-    // Build packet from decoded symbols
-    packet_builder.execute(decoded_symbol);
-}
-
-void EPIRBProcessor::payload_handler(const baseband::Packet& packet) {
-    // EPIRB packet received - validate and process
-    if (packet.size() >= 112) {  // Minimum EPIRB data payload size (112 bits)
-        packets_received++;
-        last_packet_timestamp = Timestamp::now();
-
-        // Create and send EPIRB packet message to application layer
-        const EPIRBPacketMessage message{packet};
-        shared_memory.application_queue.push(message);
-    }
-}
-
-void EPIRBProcessor::on_message(const Message* const message) {
-    (void)message;  // Unused in this processor
-}
-
-int main() {
-    EventDispatcher event_dispatcher{std::make_unique<EPIRBProcessor>()};
-    event_dispatcher.run();
-    return 0;
-}
+/*
+ * Copyright (C) 2024 EPIRB Receiver Implementation
+ * Copyright (C) 2026 Frederic BORRY - ADRASEC 31
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "proc_epirb.hpp"
+
+#include "portapack_shared_memory.hpp"
+
+#include "dsp_fir_taps.hpp"
+
+#include "audio_dma.hpp"
+
+#include "event_m4.hpp"
+#include <ch.h>
+
+EPIRBProcessor::EPIRBProcessor() {
+    // Configure the decimation filters for narrowband EPIRB signal
+    decim_0.configure(taps_11k0_decim_0.taps);
+    decim_1.configure(taps_11k0_decim_1.taps);
+    // Configure channel filter for audio filtering
+    channel_filter.configure(taps_11k0_channel.taps, 2);
+    // Configure demodulation for audio output
+    demod.configure(SAMPLE_RATE, 5000);
+    // Configure audio output (+squelch level)
+    configure_audio();
+#ifdef SPECAN
+    channel_spectrum.set_decimation_factor(1);
+#endif
+    baseband_thread.start();
+}
+
+void EPIRBProcessor::configure_audio() {
+    // UI sends an squelch value ranging from 0 to 99, 0 disables squelch, dividing UI value by 40 gives a valid UI threashold around 50
+    audio_output.configure(audio_24k_hpf_300hz_config, audio_24k_deemph_300_6_config, ((float)squelch_level) / 40.0f);
+}
+
+float EPIRBProcessor::get_phase_diff(const complex16_t& sample0, const complex16_t& sample1) {
+    // Calculate the phase difference between two samples
+    float dI = sample1.real() * sample0.real() + sample1.imag() * sample0.imag();
+    float dQ = sample1.imag() * sample0.real() - sample1.real() * sample0.imag();
+    float phase_diff = atan2f(dQ, dI);
+    // Prevent phase diff from wrapping around
+    if (phase_diff > M_PI) phase_diff -= 2.0f * M_PI;
+    if (phase_diff < -M_PI) phase_diff += 2.0f * M_PI;
+    return phase_diff;
+}
+
+bool EPIRBProcessor::filtered_rise_detect(bool condition) {
+    bool result = false;
+    if (condition) {
+        // If rise condition is matched, filter peaks that last less than 3 samples
+        rise_detection_count++;
+        if (rise_detection_count >= RISE_FILTER_SAMPLES) {
+            result = true;
+            rise_detection_count = 0;
+        }
+    } else {
+        rise_detection_count = 0;
+    }
+    return result;
+}
+
+void EPIRBProcessor::execute(const buffer_c8_t& buffer) {
+    // First decimation stage: 3.072000 MHz / 8 -> 384 kHz
+    const auto decim_0_out = decim_0.execute(buffer, dst_buffer);
+
+    // Second decimation stage: 384 kHz / 8 -> 48 kHz
+    const auto decim_1_out = decim_1.execute(decim_0_out, dst_buffer);
+    // We use decim1 output as decimator output
+    const auto decimator_out = decim_1_out;
+
+#ifdef SPECAN
+    // Feed IQ data into spectrum collector for the RF waterfall.
+    if (spectrum_on) channel_spectrum.feed(decim_1_out, -5500, 5500, 3400);
+#endif
+
+    feed_channel_stats(decimator_out);
+
+    // if (audio_on) {
+    //  Channel filter for audio out
+    const auto channel_out = channel_filter.execute(decim_1_out, dst_buffer);
+    auto audio = demod.execute(channel_out, audio_buffer);
+    audio_output.write(audio);
+    //}
+
+    // Process each decimated sample through state machine
+    for (size_t i = 0; i < decimator_out.count; i++) {
+        // Track sample count since last symbol and since begining of the frame
+        sample_count++;
+        frame_sample_count++;
+        // Compute phase delta since last sample
+        float phase_delta = get_phase_diff(last_sample, decimator_out.p[i]);
+        last_sample = decimator_out.p[i];
+
+        // Let's sum phase delta over a 12 sample window to get the full phase jump
+        phase_delta_acc -= phase_delta_buffer[pahse_delta_index];
+        phase_delta_buffer[pahse_delta_index] = phase_delta;
+        phase_delta_acc += phase_delta_buffer[pahse_delta_index];
+        pahse_delta_index = (pahse_delta_index + 1) % PHASE_DELTA_ACC_SIZE;
+
+        // Use accumulated delta
+        phase_delta = phase_delta_acc;
+
+        // State machine for COSPAS frame detection
+        switch (current_state) {
+            case IDLE:
+                // We are waiting for a 160ms empty carrier => phase shouls be stable during this period
+                // We accept a 0.6 phase shift since phase may drift durring carrier if carrier frequency is not alligned with tuner frequency
+                if (filtered_rise_detect(phase_delta >= 0.6f)) {
+                    stability_counter = 0;
+                } else {
+                    stability_counter++;
+                    if (stability_counter > CARRIER_SAMPLES_THRESHOLD) {
+                        // Carrier has been stable long enought, go to locked state
+                        current_state = CARRIER_LOCKED;
+                        frame_sample_count = 0;
+                    }
+                }
+                break;
+
+            case CARRIER_LOCKED:
+                // Carrier is locked, we now wait for a phase 1.1 rad phase jump corresponding to the befining of the frame
+                // Let's use a 0.7 phase jump threshold
+                if (filtered_rise_detect(phase_delta >= 0.7f)) {
+                    // Jump detected, frame starts now
+                    frame_sample_count = 0;
+                    // Go to data sync state
+                    current_state = DATA_SYNC;
+                    // Frame should always start with a positive phase shift
+                    last_phase_positive = true;
+                    // And a 1 value
+                    last_bit = true;
+                } else if (frame_sample_count > CARRIER_MAX_SAMPLES) {
+                    // We missed sync pattern
+                    frame_end();
+                }
+                break;
+
+            case DATA_SYNC: {
+                float abs_phase_delta = fabsf(phase_delta);
+
+                if (abs_phase_delta >= 1.6f) {
+                    // Phase should jump from 1.1 rad to -1.1 rad or the other way around
+                    // Absolute phase jump is expected to be 2.2 rad
+                    // Phase jump is either positive or negative
+                    bool phase_positive = (phase_delta >= 0.0f);
+
+                    if (phase_positive != last_phase_positive) {
+                        // Phase jumped to the opposit direction of last jump
+                        last_phase_positive = phase_positive;
+                        bool cur_bit;
+                        // Phase change => how long since last change ?
+                        if ((frame_sample_count >= (SAMPLES_PER_SYMBOL - SAMPLES_MARGIN)) && (frame_sample_count <= (SAMPLES_PER_SYMBOL + SAMPLES_MARGIN))) {
+                            // Frame start
+                            if (!phase_positive) {
+                                // Symbol detection is made on falling edge
+                                cur_bit = true;
+                            } else {
+                                // Ignore rising edge
+                                continue;
+                            }
+                        } else if (sample_count > (SAMPLES_PER_SYMBOL * 2 + SAMPLES_MARGIN)) {
+                            // We missed something...
+                            // Let's keep same value for current bit
+                            cur_bit = last_bit;
+                        } else if (sample_count >= (SAMPLES_PER_SYMBOL * 2 - SAMPLES_MARGIN)) {
+                            // 2 symbols since last change => bit value changes
+                            cur_bit = !last_bit;
+                        } else if ((sample_count >= (SAMPLES_PER_SYMBOL - SAMPLES_MARGIN)) && (sample_count <= (SAMPLES_PER_SYMBOL + SAMPLES_MARGIN))) {
+                            // Phase change occured in first half bit => we keep the same value
+                            if ((phase_positive && last_bit) || (!phase_positive && !last_bit)) {
+                                sample_count = 0;
+                                // Ignore rising edge if current value is 1 and falling edge if current value is 0 and move to next symbol
+                                continue;
+                            }
+                            // Same value on falling/rising edge
+                            cur_bit = last_bit;
+                        } else {
+                            // Filter the rest
+                            continue;
+                        }
+                        // Store new bit and move to next symbol
+                        sample_count = 0;
+                        packet_builder.execute(cur_bit);
+                        last_bit = cur_bit;
+                    }
+                }
+                if (frame_sample_count > FRAME_MAX_SAMPLES) {
+                    // End of frame
+                    current_state = POST_FRAME;
+                    packet_builder.flush();
+                }
+            } break;
+            case POST_FRAME:
+                if (frame_sample_count > CARRIER_MAX_SAMPLES) {
+                    // End of carrier
+                    frame_end();
+                }
+            default:
+                break;
+        }
+    }
+}
+
+void EPIRBProcessor::frame_end() {
+    sample_count = 0;
+    frame_sample_count = 0;
+    stability_counter = 0;
+    last_phase_positive = false;
+    last_bit = false;
+    current_state = IDLE;
+    packet_builder.reset_state();
+}
+
+void EPIRBProcessor::payload_handler(const baseband::Packet& packet) {
+    // EPIRB packet received: create and send EPIRB packet message to application layer
+    const EPIRBPacketMessage message{packet};
+    shared_memory.application_queue.push(message);
+}
+
+void EPIRBProcessor::on_message(const Message* const msg) {
+    // Configure the processor
+    switch (msg->id) {
+#ifdef SPECAN
+        case Message::ID::UpdateSpectrum:
+        case Message::ID::SpectrumStreamingConfig:
+            channel_spectrum.on_message(msg);
+            break;
+#endif
+        case Message::ID::EPIRBRXConfig: {
+            const EPIRBRXConfig message = *reinterpret_cast<const EPIRBRXConfig*>(msg);
+            // audio_on = message.audio_on;
+#ifdef SPECAN
+            spectrum_on = message.spectrum_on;
+#endif
+            if (message.squelch != squelch_level) {
+                // Update squelch config
+                squelch_level = message.squelch;
+                configure_audio();
+            }
+        } break;
+
+        default:
+            break;
+    }
+}
+
+int main() {
+    audio::dma::init_audio_out();
+
+    EventDispatcher event_dispatcher{std::make_unique<EPIRBProcessor>()};
+    event_dispatcher.run();
+    return 0;
+}

firmware/baseband/proc_epirb.hpp

@@ -1,135 +1,268 @@
-/*
- * Copyright (C) 2024 EPIRB Receiver Implementation
- *
- * 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 __PROC_EPIRB_H__
-#define __PROC_EPIRB_H__
-
-#include <cstdint>
-#include <cstddef>
-#include <array>
-#include <complex>
-
-#include "baseband_processor.hpp"
-#include "baseband_thread.hpp"
-#include "rssi_thread.hpp"
-#include "channel_decimator.hpp"
-#include "matched_filter.hpp"
-#include "clock_recovery.hpp"
-#include "symbol_coding.hpp"
-#include "packet_builder.hpp"
-#include "baseband_packet.hpp"
-#include "message.hpp"
-#include "buffer.hpp"
-
-// Forward declarations for types only used as pointers/references
-class Message;
-namespace baseband {
-class Packet;
-}
-
-// EPIRB 406 MHz Emergency Position Indicating Radio Beacon
-// Signal characteristics:
-// - Frequency: 406.025 - 406.028 MHz (typically 406.028 MHz)
-// - Modulation: BPSK (Binary Phase Shift Keying)
-// - Data rate: 400 bps
-// - Encoding: Bi-phase L (Manchester)
-// - Transmission: Every 50 seconds ± 2.5 seconds
-// - Power: 5W ± 2dB
-// - Message length: 144 bits (including sync pattern)
-
-// Matched filter for BPSK demodulation at 400 bps
-// Using raised cosine filter taps optimized for 400 bps BPSK
-static constexpr std::array<std::complex<float>, 64> bpsk_taps = {{// Raised cosine filter coefficients for BPSK 400 bps
-                                                                   -5, -8, -12, -15, -17, -17, -15, -11,
-                                                                   -5, 2, 11, 20, 29, 37, 43, 47,
-                                                                   48, 46, 42, 35, 26, 16, 4, -8,
-                                                                   -21, -33, -44, -53, -59, -62, -62, -58,
-                                                                   -51, -41, -28, -13, 3, 19, 36, 51,
-                                                                   64, 74, 80, 82, 80, 74, 64, 51,
-                                                                   36, 19, 3, -13, -28, -41, -51, -58,
-                                                                   -62, -62, -59, -53, -44, -33, -21, -8}};
-
-class EPIRBProcessor : public BasebandProcessor {
-   public:
-    EPIRBProcessor();
-
-    void execute(const buffer_c8_t& buffer) override;
-
-    void on_message(const Message* const message) override;
-
-   private:
-    // EPIRB operates at 406 MHz with narrow bandwidth
-    static constexpr size_t baseband_fs = 2457600;
-    static constexpr uint32_t epirb_center_freq = 406028000;  // 406.028 MHz
-    static constexpr uint32_t symbol_rate = 400;              // 400 bps
-    static constexpr size_t decimation_factor = 64;           // Decimate to ~38.4kHz
-
-    std::array<complex16_t, 512> dst{};
-    const buffer_c16_t dst_buffer{
-        dst.data(),
-        dst.size()};
-
-    // Decimation chain for 406 MHz EPIRB signal processing
-    dsp::decimate::FIRC8xR16x24FS4Decim8 decim_0{};
-    dsp::decimate::FIRC16xR16x32Decim8 decim_1{};
-
-    dsp::matched_filter::MatchedFilter mf{bpsk_taps, 2};
-
-    // Clock recovery for 400 bps symbol rate
-    // Sampling rate after decimation: ~38.4kHz
-    // Symbols per sample: 38400 / 400 = 96 samples per symbol
-    clock_recovery::ClockRecovery<clock_recovery::FixedErrorFilter> clock_recovery{
-        38400,      // sampling_rate
-        400,        // symbol_rate (400 bps)
-        {0.0555f},  // error_filter coefficient
-        [this](const float symbol) { this->consume_symbol(symbol); }};
-
-    // Simple bi-phase L decoder state
-    uint_fast8_t last_symbol = 0;
-
-    // EPIRB packet structure:
-    // - Sync pattern: 000101010101... (15 bits)
-    // - Frame sync: 0111110 (7 bits)
-    // - Data: 112 bits
-    // - BCH error correction: 10 bits
-    // Total: 144 bits
-    PacketBuilder<BitPattern, BitPattern, BitPattern> packet_builder{
-        {0b010101010101010, 15, 1},  // Preamble pattern
-        {0b0111110, 7},              // Frame sync pattern
-        {0b0111110, 7},              // End pattern (same as sync for simplicity)
-        [this](const baseband::Packet& packet) {
-            this->payload_handler(packet);
-        }};
-
-    void consume_symbol(const float symbol);
-    void payload_handler(const baseband::Packet& packet);
-
-    // Statistics
-    uint32_t packets_received = 0;
-    Timestamp last_packet_timestamp{};
-
-    /* NB: Threads should be the last members in the class definition. */
-    BasebandThread baseband_thread{
-        baseband_fs, this, baseband::Direction::Receive, /*auto_start*/ false};
-    RSSIThread rssi_thread{};
-};
-
+/*
+ * Copyright (C) 2024 EPIRB Receiver Implementation
+ * Copyright (C) 2026 Frederic BORRY - ADRASEC 31
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __PROC_EPIRB_H__
+#define __PROC_EPIRB_H__
+
+#include <cstdint>
+#include <cstddef>
+#include <array>
+#include <complex>
+
+#include "baseband_processor.hpp"
+#include "baseband_thread.hpp"
+#include "rssi_thread.hpp"
+#include "channel_decimator.hpp"
+#include "matched_filter.hpp"
+#include "packet_builder.hpp"
+#include "baseband_packet.hpp"
+#include "message.hpp"
+#include "buffer.hpp"
+
+// Specan is disable to keep application size below the 32k limit
+// #define SPECAN
+
+#ifdef SPECAN
+#include "spectrum_collector.hpp"
+#endif
+
+#include "audio_output.hpp"
+#include "dsp_demodulate.hpp"
+
+// Forward declarations for types only used as pointers/references
+class Message;
+namespace baseband {
+class Packet;
+}
+
+// COSPAS / SARSAT 406 frame constants
+// Size of preamble (bits)
+#define COSPAS_PREAMBLE_SIZE 24
+// Size of long frame (bits)
+#define COSPAS_LONG_FRAME_SIZE 144
+// Siz of short frame (bits)
+#define COSPAS_SHORT_FRAME_SIZE 112
+// Preamble for real frames
+#define COSPAS_REAL_PREAMBLE 0b1111'1111'1111'1110'0010'1111
+// Preable for test frames
+#define COSPAS_TEST_PREAMBLE 0b1111'1111'1111'1110'1101'0000
+
+// Dedicated EPIRB PacketBuilder
+// Usees diedicated preamble detection logic to find both real and test frames
+// Also as a dedicated packet size detection based on frame's size bit
+class EPIRBPacketBuilder {
+   public:
+    using EPIRBHandler = void (*)(void* context, const baseband::Packet& packet);
+
+    EPIRBPacketBuilder(
+        void* context,
+        EPIRBHandler handler)
+        : context(context),
+          handler(handler) {
+    }
+
+    void execute(
+        const uint_fast8_t symbol) {
+        bit_history.add(symbol);
+
+        switch (state) {
+            case State::Preamble: {
+                // Detect both real and test fram preambles
+                bool is_real = real_sync_matcher(bit_history, packet.size());
+                bool is_test = test_sync_matcher(bit_history, packet.size());
+                if (is_real || is_test) {
+                    // Append preamble to the begining of the packet
+                    uint64_t preamble = is_real ? COSPAS_REAL_PREAMBLE : COSPAS_TEST_PREAMBLE;
+                    for (int8_t i = (COSPAS_PREAMBLE_SIZE - 1); i >= 0; i--) {
+                        packet.add((preamble >> i) & 0x1);
+                    }
+                    state = State::Format;
+                }
+            } break;
+            case State::Format:
+                packet.add(symbol);
+                // 144 bits for long frames and 112 for short frames
+                size = symbol ? COSPAS_LONG_FRAME_SIZE : COSPAS_SHORT_FRAME_SIZE;
+                state = State::Payload;
+
+                break;
+            case State::Payload:
+                packet.add(symbol);
+
+                if (packet.size() >= size) {
+                    flush();
+                } else {
+                    if (packet.size() >= packet.capacity()) {
+                        reset_state();
+                    }
+                }
+                break;
+
+            default:
+                reset_state();
+                break;
+        }
+    }
+
+    void flush() {
+        // Timestamp is not set here to save some app space (not used on ui side)
+        // packet.set_timestamp(Timestamp::now());
+        if (handler) handler(context, packet);
+        reset_state();
+    }
+
+    void reset_state() {
+        packet.clear();
+        bit_history = BitHistory();
+        state = State::Preamble;
+    }
+
+   private:
+    enum State {
+        Preamble,
+        Format,
+        Payload,
+    };
+
+    BitHistory bit_history{};
+    BitPattern real_sync_matcher{COSPAS_REAL_PREAMBLE, COSPAS_PREAMBLE_SIZE};
+    BitPattern test_sync_matcher{COSPAS_TEST_PREAMBLE, COSPAS_PREAMBLE_SIZE};
+    void* context;
+    EPIRBHandler handler;
+    uint8_t size{0};
+
+    State state{State::Preamble};
+    baseband::Packet packet{};
+};
+
+class EPIRBProcessor : public BasebandProcessor {
+   public:
+    EPIRBProcessor();
+
+    void execute(const buffer_c8_t& buffer) override;
+
+    void on_message(const Message* const message) override;
+
+   private:
+    // Baseband frequency is set to 3,072,000 samples / sec
+    static constexpr uint32_t BASEBAND_SAMPLE_RATE = 3072000;
+    static constexpr uint32_t SAMPLE_RATE = BASEBAND_SAMPLE_RATE / 8 / 8;    // We use to decimators with factor 8 each
+    static constexpr uint32_t SYMBOL_RATE = 800;                             // 400 bps + Manchester (2 1/2 bits per symbol) => 800
+    static constexpr size_t SAMPLES_PER_SYMBOL = SAMPLE_RATE / SYMBOL_RATE;  // = 60 samples per symbol
+    static constexpr size_t SAMPLES_PER_BIT = SAMPLES_PER_SYMBOL * 2;        // = 120 samples per bit
+    static constexpr size_t SAMPLES_MARGIN = SAMPLES_PER_SYMBOL / 3;         // = Allow 20 sample drift
+    static constexpr size_t SAMPLES_ACCUMUMLATOR = SAMPLES_PER_SYMBOL / 5;   // Accumulate phase change across 12 samples
+    static constexpr size_t RISE_FILTER_SAMPLES = SAMPLES_PER_SYMBOL / 20;   // Filter peaks of less than 3 samples
+
+    static constexpr size_t CARRIER_SAMPLES_THRESHOLD = 0.080f * SAMPLE_RATE;    // Carrier before frame lasts 160ms, require at least 80ms
+    static constexpr size_t CARRIER_MAX_SAMPLES = 0.900f * SAMPLE_RATE;          // Carrier + frame lasts 160ms + 520ms + 100ms post carrier = 880ms
+    static constexpr size_t FRAME_MAX_SAMPLES = SAMPLES_PER_BIT * (144 * 1.1f);  // Frame max length (add 1% error margin)
+
+    AudioOutput audio_output{};
+
+    // Config
+    uint8_t squelch_level{50};
+    // Audio on/off logic is disabled to save app space
+    // bool audio_on{true};
+#ifdef SPECAN
+    bool spectrum_on{false};
+#endif
+
+    std::array<float, 32> audio{};
+    const buffer_f32_t audio_buffer{
+        audio.data(),
+        audio.size()};
+
+    // Last received bit (for manchester deconding)
+    bool last_bit = false;
+    // Sample count since last symbol
+    uint16_t sample_count{0};
+    // Sample count since frame start
+    uint16_t frame_sample_count{0};
+    // True if last phase shift was positive, false otherwise
+    bool last_phase_positive = false;
+    // Counter used for peak filtering
+    uint16_t rise_detection_count{0};
+
+    // Frame detection state machine states
+    enum State { IDLE,
+                 CARRIER_LOCKED,
+                 DATA_SYNC,
+                 POST_FRAME };
+    // Current state for frame detection state machine
+    State current_state = IDLE;
+    // Carrier detection counter
+    uint32_t stability_counter = 0;
+
+    // Phase delta accumulator (6 samples)
+    static constexpr size_t PHASE_DELTA_ACC_SIZE = SAMPLES_ACCUMUMLATOR;
+    float phase_delta_buffer[PHASE_DELTA_ACC_SIZE] = {0.0f};
+    size_t pahse_delta_index = 0;
+    float phase_delta_acc = 0.0f;
+
+    std::array<complex16_t, 512> dst{};
+    const buffer_c16_t dst_buffer{
+        dst.data(),
+        dst.size()};
+
+    // Decimation chain for 406 MHz EPIRB signal processing
+    dsp::decimate::FIRC8xR16x24FS4Decim8 decim_0{};
+    dsp::decimate::FIRC16xR16x32Decim8 decim_1{};
+    // Audio filtering
+    dsp::decimate::FIRAndDecimateComplex channel_filter{};
+    // Audio demodulation
+    dsp::demodulate::FM demod{};
+#ifdef SPECAN
+    SpectrumCollector channel_spectrum{};
+#endif
+    // Store last stample for phase delta calculation
+    complex16_t last_sample{};
+
+    // EPIRB packet structure:
+    // - Sync pattern: 111111111111111 (15 bits)
+    // - Frame sync: 000101111(real) / 011010000(test) (9 bits)
+    // - Data: 120 bits (long frame) / // bits (short frame)
+    // - BCH error correction: 10 bits
+    // Total: 144 bits (long frame) / 112  bits (short frame)
+    EPIRBPacketBuilder packet_builder{
+        this,
+        [](void* ctx, const baseband::Packet& p) {
+            static_cast<EPIRBProcessor*>(ctx)->payload_handler(p);
+        }};
+
+    void payload_handler(const baseband::Packet& packet);
+    // Compute phase diff between two samples
+    float get_phase_diff(const complex16_t& sample0, const complex16_t& sample1);
+    // End current frame
+    void frame_end();
+    // Rise detection with peak filtering
+    bool filtered_rise_detect(bool condition);
+    // Configure audio processing
+    void configure_audio();
+
+    /* NB: Threads should be the last members in the class definition. */
+    BasebandThread baseband_thread{
+        BASEBAND_SAMPLE_RATE, this, baseband::Direction::Receive, /*auto_start*/ false};
+    RSSIThread rssi_thread{};
+};
+
 #endif /*__PROC_EPIRB_H__*/

firmware/baseband/sd_over_usb/hackrf_core.c

@@ -39,6 +39,7 @@
 #include "platform_scu.h"
 #include "fixed_point.h"
 #include "clkin.h"
+#include "usb_type.h"
 #include <libopencm3/lpc43xx/cgu.h>
 #include <libopencm3/lpc43xx/ccu.h>
 #include <libopencm3/lpc43xx/scu.h>
@@ -147,34 +148,16 @@ static struct gpio gpio_h1r9_hw_sync_enable = GPIO(5, 5);
 #endif
 // clang-format on
 
-i2c_bus_t i2c0 = {
-    .obj = (void*)I2C0_BASE,
-    .start = i2c_lpc_start,
-    .stop = i2c_lpc_stop,
-    .transfer = i2c_lpc_transfer,
-};
-
-i2c_bus_t i2c1 = {
-    .obj = (void*)I2C1_BASE,
-    .start = i2c_lpc_start,
-    .stop = i2c_lpc_stop,
-    .transfer = i2c_lpc_transfer,
-};
-
-// const i2c_lpc_config_t i2c_config_si5351c_slow_clock = {
-// 	.duty_cycle_count = 15,
-// };
-
-const i2c_lpc_config_t i2c_config_si5351c_fast_clock = {
-    .duty_cycle_count = 255,
-};
+/* i2c0, i2c1, and i2c_config_si5351c_fast_clock are defined in
+ * hackrf/firmware/common/i2c_bus.c and si5351c.c; use those instead of
+ * redefining them here to avoid multiple-definition link errors. */
 
 si5351c_driver_t clock_gen = {
     .bus = &i2c0,
     .i2c_address = 0x60,
 };
 
-const ssp_config_t ssp_config_max283x = {
+ssp_config_t ssp_config_max283x = {
     /* FIXME speed up once everything is working reliably */
     /*
         // Freq About 0.0498MHz / 49.8KHz => Freq = PCLK / (CPSDVSR * [SCR+1]) with PCLK=PLL1=204MHz
@@ -188,7 +171,7 @@ const ssp_config_t ssp_config_max283x = {
     .gpio_select = &gpio_max283x_select,
 };
 
-const ssp_config_t ssp_config_max5864 = {
+ssp_config_t ssp_config_max5864 = {
     /* FIXME speed up once everything is working reliably */
     /*
         // Freq About 0.0498MHz / 49.8KHz => Freq = PCLK / (CPSDVSR * [SCR+1]) with PCLK=PLL1=204MHz
@@ -202,14 +185,8 @@ const ssp_config_t ssp_config_max5864 = {
     .gpio_select = &gpio_max5864_select,
 };
 
-spi_bus_t spi_bus_ssp1 = {
-    .obj = (void*)SSP1_BASE,
-    .config = &ssp_config_max5864,
-    .start = spi_ssp_start,
-    .stop = spi_ssp_stop,
-    .transfer = spi_ssp_transfer,
-    .transfer_gather = spi_ssp_transfer_gather,
-};
+/* spi_bus_ssp1 is defined in hackrf/firmware/common/spi_bus.c. We update
+ * its .config at runtime in clock_init() to point at ssp_config_max5864. */
 
 max283x_driver_t max283x = {};
 
@@ -224,14 +201,8 @@ ssp_config_t ssp_config_w25q80bv = {
     .clock_prescale_rate = 2,
 };
 
-spi_bus_t spi_bus_ssp0 = {
-    .obj = (void*)SSP0_BASE,
-    .config = &ssp_config_w25q80bv,
-    .start = spi_ssp_start,
-    .stop = spi_ssp_stop,
-    .transfer = spi_ssp_transfer,
-    .transfer_gather = spi_ssp_transfer_gather,
-};
+/* spi_bus_ssp0 is defined in hackrf/firmware/common/spi_bus.c. We update
+ * its .config at runtime in clock_init() to point at ssp_config_w25q80bv. */
 
 w25q80bv_driver_t spi_flash = {
     .bus = &spi_bus_ssp0,
@@ -240,43 +211,8 @@ w25q80bv_driver_t spi_flash = {
     .target_init = w25q80bv_target_init,
 };
 
-sgpio_config_t sgpio_config = {
-    .gpio_q_invert = &gpio_q_invert,
-    .gpio_trigger_enable = &gpio_hw_sync_enable,
-    .slice_mode_multislice = true,
-};
-
-rf_path_t rf_path = {
-    .switchctrl = 0,
-#ifdef HACKRF_ONE
-    .gpio_hp = &gpio_hp,
-    .gpio_lp = &gpio_lp,
-    .gpio_tx_mix_bp = &gpio_tx_mix_bp,
-    .gpio_no_mix_bypass = &gpio_no_mix_bypass,
-    .gpio_rx_mix_bp = &gpio_rx_mix_bp,
-    .gpio_tx_amp = &gpio_tx_amp,
-    .gpio_tx = &gpio_tx,
-    .gpio_mix_bypass = &gpio_mix_bypass,
-    .gpio_rx = &gpio_rx,
-    .gpio_no_tx_amp_pwr = &gpio_no_tx_amp_pwr,
-    .gpio_amp_bypass = &gpio_amp_bypass,
-    .gpio_rx_amp = &gpio_rx_amp,
-    .gpio_no_rx_amp_pwr = &gpio_no_rx_amp_pwr,
-#endif
-#ifdef RAD1O
-    .gpio_tx_rx_n = &gpio_tx_rx_n,
-    .gpio_tx_rx = &gpio_tx_rx,
-    .gpio_by_mix = &gpio_by_mix,
-    .gpio_by_mix_n = &gpio_by_mix_n,
-    .gpio_by_amp = &gpio_by_amp,
-    .gpio_by_amp_n = &gpio_by_amp_n,
-    .gpio_mixer_en = &gpio_mixer_en,
-    .gpio_low_high_filt = &gpio_low_high_filt,
-    .gpio_low_high_filt_n = &gpio_low_high_filt_n,
-    .gpio_tx_amp = &gpio_tx_amp,
-    .gpio_rx_lna = &gpio_rx_lna,
-#endif
-};
+/* sgpio_config and rf_path are defined in hackrf/firmware/common/sgpio.c and
+ * rf_path.c. Their gpio_* fields are populated at runtime in pin_setup(). */
 
 jtag_gpio_t jtag_gpio_cpld = {
     .gpio_tms = &gpio_cpld_tms,
@@ -681,7 +617,7 @@ void cpu_clock_init(void) {
 
     si5351c_set_clock_source(&clock_gen, PLL_SOURCE_XTAL);
     // soft reset
-    si5351c_reset_pll(&clock_gen);
+    si5351c_reset_pll(&clock_gen, SI5351C_PLL_BOTH);
     si5351c_enable_clock_outputs(&clock_gen);
 
     // FIXME disable I2C
@@ -866,6 +802,55 @@ void ssp1_set_mode_max5864(void) {
 void pin_setup(void) {
     const platform_scu_t* scu = platform_scu();
 
+    /* spi_bus_ssp0/1 are defined in hackrf/firmware/common/spi_bus.c with no
+     * .config. Patch in our SSP configs and SPI driver entry points here. */
+    spi_bus_ssp0.config = &ssp_config_w25q80bv;
+    spi_bus_ssp0.start = spi_ssp_start;
+    spi_bus_ssp0.stop = spi_ssp_stop;
+    spi_bus_ssp0.transfer = spi_ssp_transfer;
+    spi_bus_ssp0.transfer_gather = spi_ssp_transfer_gather;
+
+    spi_bus_ssp1.config = &ssp_config_max5864;
+    spi_bus_ssp1.start = spi_ssp_start;
+    spi_bus_ssp1.stop = spi_ssp_stop;
+    spi_bus_ssp1.transfer = spi_ssp_transfer;
+    spi_bus_ssp1.transfer_gather = spi_ssp_transfer_gather;
+
+    /* sgpio_config / rf_path are defined in common/sgpio.c and rf_path.c
+     * with minimal initializers. Populate the gpio_* fields here. */
+    sgpio_config.gpio_q_invert = &gpio_q_invert;
+    sgpio_config.gpio_trigger_enable = &gpio_hw_sync_enable;
+    sgpio_config.slice_mode_multislice = true;
+
+#ifdef HACKRF_ONE
+    rf_path.gpio_hp = &gpio_hp;
+    rf_path.gpio_lp = &gpio_lp;
+    rf_path.gpio_tx_mix_bp = &gpio_tx_mix_bp;
+    rf_path.gpio_no_mix_bypass = &gpio_no_mix_bypass;
+    rf_path.gpio_rx_mix_bp = &gpio_rx_mix_bp;
+    rf_path.gpio_tx_amp = &gpio_tx_amp;
+    rf_path.gpio_tx = &gpio_tx;
+    rf_path.gpio_mix_bypass = &gpio_mix_bypass;
+    rf_path.gpio_rx = &gpio_rx;
+    rf_path.gpio_no_tx_amp_pwr = &gpio_no_tx_amp_pwr;
+    rf_path.gpio_amp_bypass = &gpio_amp_bypass;
+    rf_path.gpio_rx_amp = &gpio_rx_amp;
+    rf_path.gpio_no_rx_amp_pwr = &gpio_no_rx_amp_pwr;
+#endif
+#ifdef RAD1O
+    rf_path.gpio_tx_rx_n = &gpio_tx_rx_n;
+    rf_path.gpio_tx_rx = &gpio_tx_rx;
+    rf_path.gpio_by_mix = &gpio_by_mix;
+    rf_path.gpio_by_mix_n = &gpio_by_mix_n;
+    rf_path.gpio_by_amp = &gpio_by_amp;
+    rf_path.gpio_by_amp_n = &gpio_by_amp_n;
+    rf_path.gpio_mixer_en = &gpio_mixer_en;
+    rf_path.gpio_low_high_filt = &gpio_low_high_filt;
+    rf_path.gpio_low_high_filt_n = &gpio_low_high_filt_n;
+    rf_path.gpio_tx_amp = &gpio_tx_amp;
+    rf_path.gpio_rx_lna = &gpio_rx_lna;
+#endif
+
     /* Configure all GPIO as Input (safe state) */
     // gpio_init();
 
@@ -1070,3 +1055,17 @@ void halt_and_flash(const uint32_t duration) {
         delay(duration);
     }
 }
+
+/* Upstream commit 85dfacf6 ("Universalize: firmware/hackrf_usb") wired
+ * usb_endpoint_control_out.setup_complete to transceiver_usb_setup_complete
+ * (defined in hackrf_usb/usb_api_transceiver.c). That function dispatches
+ * transceiver-specific SETUP packets and falls through to usb_setup_complete
+ * for everything else. sd_over_usb doesn't link the transceiver API, so
+ * provide a shim that always delegates to the standard handler. Without
+ * this, EP0 SETUP packets get a no-op completion and enumeration times out
+ * (host reports "device descriptor read/64, error -110"). */
+void usb_setup_complete(usb_endpoint_t* const endpoint);
+void transceiver_usb_setup_complete(usb_endpoint_t* const endpoint);
+void transceiver_usb_setup_complete(usb_endpoint_t* const endpoint) {
+    usb_setup_complete(endpoint);
+}

firmware/baseband/sd_over_usb/sd_over_usb.c

@@ -22,6 +22,28 @@
 
 #include "sd_over_usb.h"
 #include "scsi.h"
+#include "usb_descriptor.h"
+
+#include <string.h>
+
+/* Defined in hackrf/firmware/hackrf_usb/usb_device.c. After upstream commit
+ * 85dfacf6 ("Universalize: firmware/hackrf_usb"), the global `usb_device` is
+ * left zero-initialized and is populated at runtime from per-board
+ * `usb_device_*` constants inside hackrf_usb.c. The sd_over_usb baseband
+ * does not link hackrf_usb.c, so populate `usb_device` ourselves before
+ * usb_run(). The descriptor fields are const-qualified, so use the upstream
+ * memcpy-from-template pattern. */
+extern usb_configuration_t* usb_configurations[];
+
+static const usb_device_t usb_device_sd_over_usb = {
+    .descriptor = usb_descriptor_device,
+    .descriptor_strings = usb_descriptor_strings,
+    .qualifier_descriptor = usb_descriptor_device_qualifier,
+    .configurations = &usb_configurations,
+    .configuration = 0,
+    .wcid_string_descriptor = wcid_string_descriptor,
+    .wcid_feature_descriptor = wcid_feature_descriptor,
+};
 
 volatile bool scsi_running = false;
 
@@ -74,6 +96,8 @@ void start_usb(void) {
     pin_setup();
     cpu_clock_init();
 
+    memcpy(&usb_device, &usb_device_sd_over_usb, sizeof(usb_device_sd_over_usb));
+
     usb_set_configuration_changed_cb(usb_configuration_changed);
     usb_peripheral_reset();
 
@@ -85,7 +109,10 @@ void start_usb(void) {
     usb_queue_init(&usb_endpoint_bulk_in_queue);
 
     usb_endpoint_init(&usb_endpoint_control_out, false);
-    usb_endpoint_init(&usb_endpoint_control_in, false);
+    /* Match the new usb_endpoint_init() contract introduced upstream by
+     * db73ecbf, control IN needs ZLP for transfers whose length is a
+     * multiple of the EP0 max packet size, otherwise the host hangs. */
+    usb_endpoint_init(&usb_endpoint_control_in, true);
 
     nvic_set_priority(NVIC_USB0_IRQ, 255);
 

firmware/common/i2cdev_max17055.cpp

@@ -551,6 +551,15 @@ bool I2cDev_MAX17055::setModelCfg(const uint8_t _Model_ID) {
 }
 
 bool I2cDev_MAX17055::setHibCFG(const uint16_t _Config) {
+    uint16_t config1_reg = read_register(0x1D);
+
+    // (SHDN: 0x80) and (COMMSH: 0x40) Otherwise it will go into sleep mode after 45 seconds.
+    config1_reg &= ~(0x0080 | 0x0040);
+
+    if (!write_register(0x1D, config1_reg)) {
+        return false;
+    }
+
     return write_register(0xBA, _Config);
 }
 

firmware/common/message.hpp

@@ -161,6 +161,7 @@ class Message {
         ToneDetectData = 103,
         ToneDetectConfig = 104,
         FlexTosend = 105,
+        EPIRBRXConfig = 106,
         MAX
     };
 
@@ -390,6 +391,16 @@ class EPIRBPacketMessage : public Message {
     baseband::Packet packet;
 };
 
+class EPIRBRXConfig : public Message {
+   public:
+    constexpr EPIRBRXConfig()
+        : Message{ID::EPIRBRXConfig} {
+    }
+    bool spectrum_on = false;
+    bool audio_on = true;
+    uint8_t squelch{50};
+};
+
 class TPMSPacketMessage : public Message {
    public:
     constexpr TPMSPacketMessage(

firmware/common/portapack_shared_memory.hpp

@@ -85,7 +85,7 @@ struct SharedMemory {
     uint16_t volatile m4_stack_usage{0};
     uint32_t volatile m4_heap_usage{0};
     uint16_t volatile m4_buffer_missed{0};
-
+    uint8_t volatile radio_tx_drain{0};  // to indicate the baseband thread to drain the tx buffer, and wait for it, before radio::disable()
 #ifdef PRALINE
     // Phase 0 instrumentation counters for PRALINE radio debugging
     uint32_t volatile m4_dma_xfr_count{0};    // DMA transfer_complete() calls

sdcard/EPIRB/BEACONS.TXT

@@ -13,7 +13,7 @@ EPIRB; Standard Location Protocol EPIRB-MMSI; FFFED0A0D205F260850F3DC9E0B70B6E4F
 PLB; Standard Location Protocol - PLB (Serial); FFFED0A3E7B10016150D364D8B3689C09437
 SAAS; Std. Location ship security protocol (SSAS); FFFED0A5DC19E1A07FDFFE5C803483E0FCCA
 ELT 24; Serial user Location (ELT with Aircraft 24-bit Address); FFFED0CE46E76EF8C00C2BAA31CFE0FF0F61
-MMSO; Maritime User Protocol MMSI - EPIRB; FFFED0D9D4EB28140AA6893F16A2C67282EC
+MMSI; Maritime User Protocol MMSI - EPIRB; FFFED0D9D4EB28140AA6893F16A2C67282EC
 Float Free EPIRB; Float Free EPIRB with Serial Identification Number; FFFED0DF76A9A9C800174DE27BE1F0277E45
 Non Float Free EPIRB; Non Float Free EPIRB with Serial Identification; FFFED0DF77200000001168C610AFE0FF0146
 Radio Call Sign; Radio Call Sign - EPIRB; FFFED0E0DDAE599508268E4C05E054651307
@@ -22,4 +22,13 @@ ELT Aircraft; ELT with Aircraft Operator Designator & Serial Number; FFFED0EDF67
 PLB Serial; Standard Location Protocol - PLB (Serial); FFFED0A157B081437FDFF8B4833783E0F66C
 RLS Location; RLS Location Protocol; FFFED096ED09900149D4D467EE0851A3B2E8
 Orbitography; Orbitography Protocol (from Toulouse FMCC's LUT); FFFE2FCE3000000000000DBD0E4022417500
-ELT 24 2; ELT 24 bits; FFFED08DB345B146202DDF3C71F59BAB7072 
+ELT 24 2; ELT 24 bits; FFFED08DB345B146202DDF3C71F59BAB7072
+Selftest BCH1 ERR; Serial user Location Protocol; FFFED0D7E6202820000C29FF51041775302D
+Selftest BCH2 ERR; Serial user Location Protocol; FFFED0D6E6202820000C29FF51041765302D
+Selftest BCH12 ERR; Serial user Location Protocol; FFFED0D7E6202820000C29FF51041765302D
+Emergency Cap;EPIRB Emergency Capsizing;FFFED056E68040022021A4CDC675
+Emergency No Mar.;Emergency non maritime;FFFED056EE8040022021A5623CFE
+Emergency PLB;Emergency PLB no fire+med+dis;FFFED056E7804002202123F39E36
+Emergency PLB fire;Emergency PLB fire;FFFED056E7804002202123F39E39
+EPIRB Sinking;Emergency EPIRB Sinking;FFFED056E58040022021342FAD76
+EPIRB Call Sign Col.;EPIRB Radio Call Sign Emergency collision;FFFED056ED80400220217185E933

sdcard/EPIRB/FREQ.TXT

@@ -0,0 +1,11 @@
+406025000
+406028000
+406037000
+406040000
+406049000
+406052000
+406061000
+406064000
+433025000
+144875000
+406022000

sdcard/EPIRB/RES/BEACON.RES

@@ -0,0 +1,59 @@
+EPIRB - Maritime
+EPIRB - Radio Call Sign
+ELT - Aviation
+Serial User Protocol
+Test User Protocol
+Orbitography Protocol
+National User Protocol
+2nd Generation Beacons
+EPIRB - MMSI / Location
+ELT-24-bit Address / Location
+ELT Serial Location
+ELT Serial Aircraft Location
+EPIRB Serial Location
+PLB Serial Location
+Ship Security Location
+Test Standard Location
+ELT National Location
+EPIRB National Location
+PLB National Location
+Test National Location
+RLS Location Protocol
+ELT(DT) Location Protocol
+Spare
+Unknown
+# L. 25: additional data
+ELTs/SN
+ELTs/AC op & SN
+FF EPIRBs/SN
+ELTs+AC 24-bit ad.
+NFF EPIRBs/SN
+Not Used
+PLBs/SN
+# L. 33: long additinal data
+MMSI=0x%08lX MID=%ld
+24 bits AC ad.
+C/S TA #=%ld
+Op Design.=%c%c%c
+Nati. data=%ld
+# L. 39: emmergency
+Other
+Fire
+Flooding
+Collision
+Grounding
+Capsizing
+Sinking
+Disabled
+Abandoning
+# L. 49: other emmergency
+Fire
+Med.
+Dis.
+# L. 53: 
+Undefined
+No device
+Other/no device
+Other device
+121.5 MHz
+SART

sdcard/EPIRB/RES/COUNTRY.RES

@@ -0,0 +1,292 @@
+501:ADE:AdelieLand
+201:ALB:Albania
+202:AND:Andorra
+203:AUT:Austria
+204:AZC:Azores
+205:BEL:Belgium
+206:BLR:Belarus
+207:BUL:Bulgaria
+208:VAT:Vatican
+209:CYP:Cyprus
+210:CYP:Cyprus
+211:GER:Germany
+212:CYP:Cyprus
+213:GOG:Georgia
+214:MOL:Moldova
+215:MAL:MALTA
+216:ARM:Armenia
+218:GER:Germany
+219:DEN:Denmark
+220:DEN:Denmark
+224:SPA:Spain
+225:SPA:Spain
+226:FRA:France
+227:FRA:France
+228:FRA:France
+229:MAL:Malta
+230:FIN:Finland
+231:FAR:Faro Isle
+232:UKM:G Britain
+233:UKM:G Britain
+234:UKM:G Britain
+235:UKM:G Britain
+236:GIB:Gibraltar
+237:GRE:Greece
+238:CRT:Croatia
+239:GRE:Greece
+240:GRE:Greece
+241:GRE:Greece
+242:MOR:Morocco
+243:HUN:Hungary
+244:NET:Netherland
+245:NET:Netherland
+246:NET:Netherland
+247:ITA:Italy
+248:MAL:Malta
+249:MAL:Malta
+250:IRE:Ireland
+251:ICE:Iceland
+252:LIE:Liechten
+253:LUX:Luxembourg
+254:MON:Monaco
+255:MAE:Madeira
+256:MAL:Malta
+257:NOR:Norway
+258:NOR:Norway
+259:NOR:Norway
+261:POL:Poland
+262:MNT:Montenegro
+263:POR:Portugal
+264:ROM:Romania
+265:SWE:Sweden
+266:SWE:Sweden
+267:SLV:Slovakia
+268:SAN:San Marino
+269:SWT:Swiss
+270:CZH:Czech Rep
+271:TUR:Turkiye
+272:UKR:Ukraine
+273:RUS:Russia
+274:MKD:North Mac
+275:LAT:Latvia
+276:EST:Estonia
+277:LIT:Lithuania
+278:SVN:Slovenia
+279:SER:Serbia
+301:ANA:Anguilla
+303:ALA:Alaska
+304:ANT:Antigua
+305:ANT:Antigua
+306:NEA:N Antilles
+307:ARU:Aruba
+308:BAA:Bahamas
+309:BAA:Bahamas
+310:BER:Bermuda
+311:BAA:Bahamas
+312:BEZ:Belize
+314:BAR:Barbados
+316:CAN:Canada
+319:CAY:Cayman Is
+321:COS:Costa Rica
+323:CUB:Cuba
+325:DOM:Dominica
+327:DOR:Dominican
+329:GUA:Guadeloupe
+330:GRA:Grenada
+331:GRN:Greenland
+332:GUT:Guatemala
+334:HON:Honduras
+336:HAI:Haiti
+338:USA:USA
+339:JAM:Jamaica
+341:SKN:St Kitts
+343:SLU:St Lucia
+345:MEX:Mexico
+347:MTQ:Martinique
+348:MOT:Montserrat
+350:NIC:Nicaragua
+351:PAN:Panama
+352:PAN:Panama
+353:PAN:Panama
+354:PAN:Panama
+355:PAN:Panama
+356:PAN:Panama
+357:PAN:Panama
+358:PUE:PuertoRico
+359:ELS:ElSalvador
+361:SPI:St Pierre
+362:TAT:Trinidad
+364:TUK:Caicos Is
+366:USA:USA
+367:USA:USA
+368:USA:USA
+369:USA:USA
+370:PAN:Panama
+371:PAN:Panama
+372:PAN:Panama
+373:PAN:Panama
+374:PAN:Panama
+375:SVG:St Vincent
+376:SVG:St Vincent
+377:SVG:St Vincent
+378:BVI:Virgin GB
+379:USV:Virgin US
+401:AFG:Afghan
+403:SAU:Saudi
+405:BAN:Bangladesh
+408:BAH:Bahrain
+410:BHU:Bhutan
+412:CHN:China
+413:CHN:China
+414:CHN:CHINA
+416:TAI:Taipei
+417:SRI:Sri Lanka
+419:IND:India
+422:IRN:Iran
+423:AZR:Azerbaijan
+425:IRQ:Iraq
+428:ISR:Israel
+431:JPN:Japan
+432:JPN:Japan
+434:TKM:Turkmenist
+436:KAZ:Kazakhstan
+437:UZB:Uzbekistan
+438:JOR:Jordan
+440:KOR:Korea Sou
+441:KOR:Korea Sou
+443:PAA:Palestine
+445:KDR:Korea Nor
+447:KUW:Kuwait
+450:LEB:Lebanon
+451:KYR:Kyrgyzia
+453:MAC:Macao
+455:MAV:Maldives
+457:MNG:Mongolia
+459:NEP:Nepal
+461:OMN:Oman
+463:PAK:Pakistan
+466:QAT:Qatar
+468:SYR:Syria
+470:UAE:UAE
+471:UAE:UAE
+472:TJK:TAJIKISTAN
+473:YEM:Yemen
+475:YEM:Yemen
+477:HKG:Hong Kong
+478:BOS:Bosniaherz
+503:AUS:Australia
+506:BUR:Burma
+508:BRU:Brunei
+510:MIC:Micronesia
+511:PAL:Palau
+512:NZL:NewZealand
+514:CMB:Cambodia
+515:CMB:Cambodia
+516:CHR:Christmas
+518:COO:Cook Isles
+520:FIJ:Fiji
+523:COC:Cocos Isle
+525:INO:Indonesia
+529:KIR:Kiribati
+531:LAO:Lao
+533:MLY:Malaysia
+536:MAI:Mariana Is
+538:MAR:Marshall I
+540:NCA:Caledonia
+542:NIU:Niue Isle
+544:NAU:Nauru
+546:PLY:Polynesia
+548:PHI:Philippine
+550:TIM:TimorLeste
+553:PAP:Papua NG
+555:PIT:Pitcairn I
+557:SOL:Solomon Is
+559:ASA:Samoa USA
+561:WSA:West Samoa
+563:SIN:Singapore
+564:SIN:Singapore
+565:SIN:Singapore
+566:SIN:SINGAPORE
+567:THA:Thailand
+570:TON:Tonga
+572:TUV:Tuvalu Is
+574:VIE:Vietnam
+576:VAN:Vanuatu
+577:VAN:Vanuatu
+578:WAL:Wallis Is
+601:SAF:So Africa
+603:ANG:Angola
+605:ALG:Algeria
+607:SPL:St Paul
+608:ASC:Ascension
+609:BUI:Burundi
+610:BEN:Benin
+611:BOT:Botswana
+612:CAR:CenAfr Rep
+613:CAM:Cameroon
+615:CON:Congo
+616:COM:Comoros
+617:CAP:Cape Verde
+618:CRP:Crozet
+619:IVO:IvoryCoast
+620:COM:Comoros
+621:DJI:Djibouti
+622:EGY:Egypt
+624:ETH:Ethiopia
+625:ERT:Eritrea
+626:GAB:Gabon Rep
+627:GHA:Ghana
+629:GAM:Gambia
+630:GUB:Guinea Bis
+631:EQG:Eq Guinea
+632:GUN:Guinea Rep
+633:BUF:Burkina FS
+634:KEN:Kenya
+635:KER:Kerguelen
+636:LIB:Liberia
+637:LIB:Liberia
+638:SSD:Southsudan
+642:LBY:Libya
+644:LES:Lesotho
+645:MAU:Mauritius
+647:MAD:Madagascar
+649:MLI:Mali
+650:MOZ:Mozambique
+654:MAA:Mauritania
+655:MAW:Malawi
+656:NIG:Niger
+657:NIA:Nigeria
+659:NAM:Namibia
+660:REU:Reunion
+661:RWA:Rwanda
+662:SUD:Sudan
+663:SEN:Senegal
+664:SEY:Seychelle
+665:SHE:St Helena
+666:SOM:Somali
+667:SIL:Sierra Leo
+668:SAO:Sao Tome
+669:SWZ:Eswatini
+670:CHA:Chad
+671:TOG:Togo
+672:TUN:Tunisia
+674:TAN:Tanzania
+675:UGA:Uganda
+676:ZAI:Zaire
+677:TAN:Tanzania
+678:ZAM:Zambia
+679:ZIM:Zimbabwe
+701:ARG:Argentina
+710:BRA:Brazil
+720:BOL:Bolivia
+725:CHI:Chile
+730:COL:Colombia
+735:ECU:Ecuador
+740:FAL:Falkland I
+745:GUI:Guiana
+750:GUY:Guyana
+755:PAR:Paraguay
+760:PER:Peru
+765:SUR:Suriname
+770:URU:Uruguay
+775:VEN:Venezuela

sdcard/WATERFALLS/apricity.txt

@@ -0,0 +1,33 @@
+# 'apricity' colormap from cmyt
+0,89,105,175
+8,90,111,171
+16,91,116,169
+25,93,121,167
+33,94,127,166
+41,96,132,165
+49,97,137,164
+58,99,141,164
+66,101,147,164
+74,103,151,163
+82,106,156,163
+90,108,161,163
+99,111,166,162
+107,114,171,161
+115,118,175,160
+123,121,180,159
+132,125,185,157
+140,128,190,155
+148,132,195,152
+156,137,199,149
+165,142,205,144
+173,147,209,139
+181,153,214,134
+189,160,218,129
+197,170,223,122
+206,179,227,115
+214,188,230,108
+222,199,234,100
+230,211,237,91
+239,223,240,81
+247,234,243,70
+255,246,246,55

sdcard/WATERFALLS/arbre.txt

@@ -0,0 +1,33 @@
+# 'arbre' colormap from cmyt
+0,113,14,13
+8,117,22,34
+16,121,29,54
+25,125,35,73
+33,129,41,95
+41,133,45,115
+49,136,49,136
+58,139,52,158
+66,141,56,184
+74,141,60,208
+82,138,69,228
+90,130,82,241
+99,118,100,245
+107,105,116,241
+115,92,129,234
+123,82,141,225
+132,72,153,217
+140,65,162,209
+148,60,171,203
+156,54,179,196
+165,48,189,189
+173,43,197,182
+181,40,206,173
+189,45,214,162
+197,62,222,147
+206,84,228,131
+214,110,234,113
+222,139,238,93
+230,173,240,69
+239,203,241,50
+247,231,241,44
+255,254,242,69

sdcard/WATERFALLS/cividis.txt

@@ -0,0 +1,33 @@
+# 'cividis' colormap from matplotlib
+0,0,34,78
+8,0,40,91
+16,0,46,106
+25,5,51,113
+33,28,57,111
+41,41,63,110
+49,51,68,109
+58,60,74,108
+66,69,80,108
+74,77,85,108
+82,85,91,109
+90,92,97,110
+99,100,103,112
+107,107,109,114
+115,114,114,116
+123,120,120,119
+132,128,127,120
+140,136,133,120
+148,144,139,120
+156,151,145,119
+165,160,152,117
+173,168,158,115
+181,176,165,113
+189,185,171,109
+197,194,179,105
+206,203,185,101
+214,211,192,95
+222,220,200,89
+230,230,208,81
+239,239,215,72
+247,248,223,60
+255,254,232,56

sdcard/WATERFALLS/dusk.txt

@@ -0,0 +1,33 @@
+# 'dusk' colormap from cmyt
+0,6,3,5
+8,11,10,15
+16,15,18,27
+25,18,27,38
+33,16,36,52
+41,7,45,62
+49,17,53,64
+58,35,59,64
+66,50,65,66
+74,63,70,69
+82,74,75,72
+90,86,81,73
+99,101,85,73
+107,115,89,73
+115,130,92,72
+123,145,95,70
+132,163,97,68
+140,179,99,64
+148,195,100,60
+156,213,100,54
+165,231,101,42
+173,239,111,31
+181,240,126,49
+189,241,140,73
+197,241,155,98
+206,242,168,119
+214,242,180,140
+222,243,192,161
+230,244,206,184
+239,245,218,204
+247,246,230,223
+255,249,241,241

sdcard/WATERFALLS/inferno.txt

@@ -0,0 +1,33 @@
+# 'inferno' colormap from matplotlib
+0,0,0,4
+8,4,3,18
+16,11,7,36
+25,21,11,55
+33,35,12,76
+41,49,10,92
+49,62,9,102
+58,76,12,107
+66,90,17,110
+74,103,22,110
+82,116,26,110
+90,128,31,108
+99,143,36,105
+107,155,41,100
+115,168,46,95
+123,180,51,89
+132,193,58,80
+140,204,66,72
+148,215,75,63
+156,224,85,54
+165,233,97,43
+173,239,110,33
+181,245,123,23
+189,248,137,12
+197,251,153,6
+206,252,168,13
+214,251,184,29
+222,249,199,47
+230,245,217,73
+239,242,232,101
+247,243,245,134
+255,252,255,164

sdcard/WATERFALLS/kelp.txt

@@ -0,0 +1,33 @@
+# 'kelp' colormap from cmyt
+0,20,6,117
+8,32,14,122
+16,43,20,126
+25,54,26,130
+33,66,32,133
+41,76,38,135
+49,85,44,135
+58,94,50,134
+66,103,57,133
+74,111,64,132
+82,117,71,130
+90,124,78,129
+99,130,87,128
+107,135,95,128
+115,139,103,128
+123,143,111,129
+132,146,120,132
+140,150,128,135
+148,153,137,139
+156,156,145,142
+165,158,154,147
+173,161,163,152
+181,163,172,156
+189,165,181,159
+197,168,191,161
+206,174,199,159
+214,182,207,157
+222,193,214,153
+230,207,222,149
+239,220,229,144
+247,235,235,139
+255,250,242,133

sdcard/WATERFALLS/magma.txt

@@ -0,0 +1,33 @@
+# 'magma' colormap from matplotlib
+0,0,0,4
+8,3,3,18
+16,10,8,34
+25,19,13,52
+33,30,17,73
+41,42,17,92
+49,56,16,108
+58,69,16,119
+66,84,19,125
+74,96,24,128
+82,109,29,129
+90,121,34,130
+99,136,39,129
+107,148,44,128
+115,161,48,126
+123,174,52,123
+132,189,57,119
+140,202,62,114
+148,214,69,108
+156,226,77,102
+165,236,88,96
+173,243,101,92
+181,248,116,92
+189,251,131,95
+197,253,148,103
+206,254,163,111
+214,254,178,122
+222,254,193,133
+230,254,209,148
+239,253,224,161
+247,252,238,176
+255,252,253,191

sdcard/WATERFALLS/mako.txt

@@ -0,0 +1,33 @@
+# 'mako' colormap from seaborn
+0,11,4,5
+8,20,9,16
+16,28,16,28
+25,36,22,40
+33,44,28,54
+41,50,34,67
+49,55,40,81
+58,59,47,95
+66,63,54,111
+74,65,62,125
+82,64,70,138
+90,62,79,148
+99,58,89,154
+107,56,99,157
+115,54,108,160
+123,53,117,161
+132,52,127,164
+140,52,136,166
+148,52,145,168
+156,52,154,170
+165,54,164,171
+173,58,173,172
+181,63,182,173
+189,71,191,173
+197,83,201,173
+206,101,208,173
+214,124,214,175
+222,148,220,181
+230,171,226,190
+239,190,232,202
+247,206,238,215
+255,222,245,229

sdcard/WATERFALLS/octarine.txt

@@ -0,0 +1,33 @@
+# 'octarine' colormap from cmyt
+0,5,37,81
+8,8,45,75
+16,15,51,70
+25,20,57,67
+33,25,63,65
+41,29,69,63
+49,32,75,60
+58,38,80,55
+66,48,85,47
+74,61,89,40
+82,76,91,33
+90,92,93,27
+99,108,94,23
+107,123,94,21
+115,137,94,21
+123,152,93,21
+132,168,91,24
+140,182,89,27
+148,196,85,31
+156,211,81,37
+165,227,75,47
+173,238,71,63
+181,244,77,85
+189,244,89,108
+197,243,103,131
+206,241,115,151
+214,239,127,169
+222,236,138,186
+230,233,149,204
+239,232,159,220
+247,231,167,236
+255,238,172,250

sdcard/WATERFALLS/plasma.txt

@@ -0,0 +1,33 @@
+# 'plasma' colormap from matplotlib
+0,13,8,135
+8,34,6,144
+16,49,5,151
+25,63,4,156
+33,78,2,162
+41,91,1,165
+49,103,0,168
+58,116,1,168
+66,129,4,167
+74,141,11,165
+82,152,20,160
+90,162,29,154
+99,173,39,147
+107,182,48,139
+115,191,57,132
+123,199,66,124
+132,207,76,116
+140,214,85,109
+148,221,94,102
+156,227,104,95
+165,233,114,87
+173,239,124,81
+181,243,135,74
+189,247,145,67
+197,250,158,59
+206,252,169,52
+214,253,181,46
+222,253,194,41
+230,252,208,37
+239,249,221,37
+247,245,235,39
+255,240,249,33

sdcard/WATERFALLS/viridis.txt

@@ -0,0 +1,33 @@
+# 'viridis' colormap from matplotlib
+0,68,1,84
+8,71,13,96
+16,72,24,106
+25,72,35,116
+33,71,46,124
+41,69,56,130
+49,66,65,134
+58,62,74,137
+66,58,84,140
+74,54,93,141
+82,50,101,142
+90,46,109,142
+99,43,117,142
+107,40,125,142
+115,37,132,142
+123,34,140,141
+132,31,148,140
+140,30,156,137
+148,32,163,134
+156,37,171,130
+165,46,179,124
+173,58,186,118
+181,72,193,110
+189,88,199,101
+197,108,205,90
+206,127,211,78
+214,147,215,65
+222,168,219,52
+230,192,223,37
+239,213,226,26
+247,234,229,26
+255,253,231,37