feat(dual-fw): 移植双固件布局——LD 收窄 36K 防溢出 B 槽，命名 CeramixNano-EDDY/板卡码 26/版本 V1.0.3

CMakeLists.txt

@@ -62,6 +62,9 @@ target_link_options(${PROJECT_NAME} PRIVATE
     -T${CMAKE_SOURCE_DIR}/LD/gd32e23x_flash.ld -Xlinker
     -L${CMAKE_SOURCE_DIR}/LD
 )
+# LD 变更时触发重链接（改布局不重编也要重新生成 bin）
+set_target_properties(${PROJECT_NAME} PROPERTIES LINK_DEPENDS
+    ${CMAKE_SOURCE_DIR}/LD/gd32e23x_flash.ld)
 
 # 生成 map 文件等
 target_link_options(${PROJECT_NAME} PRIVATE
@@ -80,7 +83,7 @@ add_custom_command(TARGET ${PROJECT_NAME}
     COMMAND echo -- Running Post Build Commands
     COMMAND ${CMAKE_OBJCOPY} -O ihex $<TARGET_FILE:${PROJECT_NAME}> ${CMAKE_CURRENT_BINARY_DIR}/${OUTPUT_PREFIX}.hex
         COMMAND ${CMAKE_OBJCOPY} -O ihex $<TARGET_FILE:${PROJECT_NAME}> $<TARGET_FILE_DIR:${PROJECT_NAME}>/Application.hex
-    COMMAND ${CMAKE_OBJCOPY} -O binary $<TARGET_FILE:${PROJECT_NAME}> ${CMAKE_CURRENT_BINARY_DIR}/${OUTPUT_PREFIX}.bin
+    COMMAND ${CMAKE_OBJCOPY} -O binary --gap-fill=0xFF $<TARGET_FILE:${PROJECT_NAME}> ${CMAKE_CURRENT_BINARY_DIR}/${OUTPUT_PREFIX}.bin
     COMMAND ${CMAKE_SIZE} $<TARGET_FILE:${PROJECT_NAME}>
     COMMAND ${CMAKE_OBJDUMP} -h -S $<TARGET_FILE:${PROJECT_NAME}> > ${CMAKE_CURRENT_BINARY_DIR}/${OUTPUT_PREFIX}.list
     COMMAND ${CMAKE_SIZE} --format=berkeley $<TARGET_FILE:${PROJECT_NAME}> > ${CMAKE_CURRENT_BINARY_DIR}/${OUTPUT_PREFIX}.bsz