Add opt-in Fusion development firmware build

App/CMakeLists.txt

@@ -70,6 +70,7 @@ if(ENABLE_FEAT_F4HWN)
         "AUTHOR_STRING_2=\"${AUTHOR_STRING_2}\""
         "VERSION_STRING_1=\"${VERSION_STRING_1}\""
         "VERSION_STRING_2=\"${VERSION_STRING_2}\""
+        "DISPLAY_VERSION_STRING_2=\"${DISPLAY_VERSION_STRING_2}\""
         "EDITION_STRING=\"${EDITION_STRING}\""
         ALERT_TOT=10
     )

App/ui/menu.c

@@ -1187,7 +1187,7 @@ void UI_DisplayMenu(void)
             if (page == p++) {
                 // Page 0: firmware identity.
 #ifdef ENABLE_FEAT_F4HWN
-                sprintf(String, "%s\n%s", AUTHOR_STRING_2, VERSION_STRING_2);
+                sprintf(String, "%s\n%s", AUTHOR_STRING_2, DISPLAY_VERSION_STRING_2);
                 UI_PrintStringSmallNormal(Edition, menu_item_x1 - 1, menu_item_x2, 6);
 #else
                 sprintf(String, "%u.%02uV\n%u%%",

App/ui/welcome.c

@@ -20,6 +20,7 @@
 #include "driver/py25q16.h"
 #include "driver/st7565.h"
 #include "external/printf/printf.h"
+#include "font.h"
 #include "helper/battery.h"
 #include "settings.h"
 #include "misc.h"
@@ -312,17 +313,33 @@ void UI_DisplayWelcome(void)
         UI_PrintString(WelcomeString1, 0, 127, 2, 10);
 
 #ifdef ENABLE_FEAT_F4HWN
-        UI_PrintStringSmallNormal(Version, 0, 128, 4);
+        const size_t version_width = strlen(DisplayVersion) * (ARRAY_SIZE(gFontSmall[0]) + 1u);
+        const uint8_t version_x = version_width < LCD_WIDTH
+            ? (uint8_t)((LCD_WIDTH - version_width + 1u) / 2u)
+            : 0u;
+        const uint8_t capsule_left = version_x > 2u ? (uint8_t)(version_x - 3u) : 0u;
+        const size_t capsule_right_candidate = version_x + version_width + 2u;
+        const uint8_t capsule_right = capsule_right_candidate < LCD_WIDTH
+            ? (uint8_t)capsule_right_candidate
+            : (LCD_WIDTH - 1u);
 
-        UI_DrawLineBuffer(gFrameBuffer, 0, 35, 18, 35, 1);
-        gFrameBuffer[4][19] ^= 0x7F;
-        for (uint8_t x = 20; x < 108; x++)
+        UI_PrintStringSmallNormal(DisplayVersion, version_x, 0, 4);
+
+        if (capsule_left > 0u)
+        {
+            UI_DrawLineBuffer(gFrameBuffer, 0, 35, capsule_left - 1u, 35, 1);
+        }
+        gFrameBuffer[4][capsule_left] ^= 0x7F;
+        for (uint8_t x = capsule_left + 1u; x < capsule_right; x++)
         {
             gFrameBuffer[4][x] ^= 0xFF;
             gFrameBuffer[3][x] ^= 0x80;
         }
-        gFrameBuffer[4][108] ^= 0x7F;
-        UI_DrawLineBuffer(gFrameBuffer, 109, 35, 127, 35, 1);
+        gFrameBuffer[4][capsule_right] ^= 0x7F;
+        if (capsule_right < LCD_WIDTH - 1u)
+        {
+            UI_DrawLineBuffer(gFrameBuffer, capsule_right + 1u, 35, LCD_WIDTH - 1u, 35, 1);
+        }
 
         /*
         #ifdef ENABLE_FEAT_F4HWN_MEM

App/version.c

@@ -7,6 +7,7 @@
 
 #ifdef ENABLE_FEAT_F4HWN
     const char Version[]         = AUTHOR_STRING_2 " " VERSION_STRING_2;
+    const char DisplayVersion[]  = AUTHOR_STRING_2 " " DISPLAY_VERSION_STRING_2;
     const char Edition[]         = EDITION_STRING;
     const char BuildDate[]       = __DATE__;
     const char BuildTime[]       = __TIME__;

App/version.h

@@ -23,6 +23,7 @@ extern const char UART_Version[];
 #endif
 
 #ifdef ENABLE_FEAT_F4HWN
+extern const char DisplayVersion[];
 extern const char Edition[];
 extern const char BuildDate[];
 extern const char BuildTime[];

CMakeLists.txt

@@ -19,6 +19,8 @@ message("Build type: " ${CMAKE_BUILD_TYPE})
 
 enable_language(C ASM)
 
+option(DEV "Prepare the rolling Fusion development firmware" OFF)
+
 find_package(Git QUIET)
 set(BUILD_COMMIT "unknown")
 if(GIT_FOUND AND EXISTS "${CMAKE_SOURCE_DIR}/.git")
@@ -71,7 +73,17 @@ else()
     set(EXE_NAME "firmware")
 endif()
 
+if(DEV)
+    if(NOT "${TARGET}" STREQUAL "f4hwn.fusion")
+        message(FATAL_ERROR "DEV is only supported for the Fusion target")
+    endif()
+    set(DISPLAY_VERSION_STRING_2 "${VERSION_STRING_2} Dev")
+else()
+    set(DISPLAY_VERSION_STRING_2 "${VERSION_STRING_2}")
+endif()
+
 message("EXE_NAME = " ${EXE_NAME})
+message("Development build = " ${DEV})
 
 add_executable(${EXE_NAME})
 
@@ -110,6 +122,17 @@ add_custom_command(
     COMMENT "Generating .bin file"
 )
 
+if(DEV)
+    add_custom_command(
+        TARGET ${EXE_NAME}
+        POST_BUILD
+        COMMAND ${CMAKE_COMMAND} -E copy_if_different
+                "${CMAKE_CURRENT_BINARY_DIR}/${EXE_NAME}.bin"
+                "${CMAKE_SOURCE_DIR}/archive/f4hwn.fusion.development.bin"
+        COMMENT "Preparing archive/f4hwn.fusion.development.bin"
+    )
+endif()
+
 # Generate .hex file
 add_custom_command(
     TARGET ${EXE_NAME}

CMakePresets.json

@@ -9,6 +9,7 @@
             "toolchainFile": "${sourceDir}/cmake/gcc-arm-none-eabi.cmake",
             "cacheVariables": {
                 "CMAKE_BUILD_TYPE": "Release",
+                "DEV": false,
                 "ENABLE_LTO": false,
                 "ENABLE_FMRADIO": false,
                 "ENABLE_UART": true,
@@ -81,7 +82,7 @@
                 "ENABLE_UART_RW_BK_REGS": false,
                 "ENABLE_SWD": false,
                 "VERSION_STRING_1": "v0.22",
-                "VERSION_STRING_2": "v5.7.0"
+                "VERSION_STRING_2": "v5.7.1"
             }
         },
         {

README.md

@@ -285,6 +285,17 @@ Examples:
 ./compile-with-docker.sh Fusion -DSQL_TONE=600
 ```
 
+To prepare the rolling development firmware:
+
+```bash
+./compile-with-docker.sh Fusion -DDEV=ON
+```
+
+This keeps the regular build output in `build/Fusion` and also updates
+`archive/f4hwn.fusion.development.bin`. The development build is identified as
+`DEV` in the firmware information screen. Publishing the updated archive file
+remains an explicit Git operation.
+
 ### Notes
 
 - The first run may take a few minutes while Docker builds the base image.

compile-with-docker.sh

@@ -8,6 +8,7 @@ set -euo pipefail
 #   ./compile-with-docker.sh Custom
 #   ./compile-with-docker.sh Bandscope -DENABLE_SPECTRUM=ON
 #   ./compile-with-docker.sh Broadcast -DENABLE_FEAT_F4HWN_GAME=ON -DENABLE_NOAA=ON
+#   ./compile-with-docker.sh Fusion -DDEV=ON
 #   ./compile-with-docker.sh All
 # Default preset: "Custom"
 # ---------------------------------------------