CMakeLists.txt

cmake_minimum_required(VERSION 3.17)
set(CMAKE_SYSTEM_NAME Generic)
set(CMAKE_SYSTEM_VERSION 1)
# specify cross compilers and tools
set(CMAKE_C_COMPILER arm-none-eabi-gcc)
set(CMAKE_CXX_COMPILER arm-none-eabi-g++)
set(CMAKE_ASM_COMPILER arm-none-eabi-gcc)
set(CMAKE_AR arm-none-eabi-ar)
set(CMAKE_OBJCOPY arm-none-eabi-objcopy)
set(CMAKE_OBJDUMP arm-none-eabi-objdump)
set(SIZE arm-none-eabi-size)
set(CMAKE_TRY_COMPILE_TARGET_TYPE STATIC_LIBRARY)

# project settings
project(LCR_LSPI C CXX ASM)
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_C_STANDARD 11)

set(MCPU cortex-m4#[[TODO kernel type, ex cortex-m4]])
#修复读取浮点数
set(COMMON_FLAGS "-specs=nosys.specs -specs=nano.specs -u _printf_float -u _scanf_float")

#Uncomment for hardware floating point
add_compile_definitions(ARM_MATH_CM4;ARM_MATH_MATRIX_CHECK;ARM_MATH_ROUNDING)
add_compile_options(-mfloat-abi=hard -mfpu=fpv4-sp-d16)
add_link_options(-mfloat-abi=hard -mfpu=fpv4-sp-d16)

#Uncomment for software floating point
#add_compile_options(-mfloat-abi=soft)

add_compile_options(-mcpu=${MCPU} -mthumb -mthumb-interwork -specs=nosys.specs)
add_compile_options(-ffunction-sections -fdata-sections -fno-common -fmessage-length=0)

# uncomment to mitigate c++17 absolute addresses warnings
#set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-register")

if ("${CMAKE_BUILD_TYPE}" STREQUAL "Release")
    message(STATUS "Maximum optimization for speed")
    add_compile_options(-Ofast)
elseif ("${CMAKE_BUILD_TYPE}" STREQUAL "RelWithDebInfo")
    message(STATUS "Maximum optimization for speed, debug info included")
    add_compile_options(-Ofast -g)
elseif ("${CMAKE_BUILD_TYPE}" STREQUAL "MinSizeRel")
    message(STATUS "Maximum optimization for size")
    add_compile_options(-Os)
else ()
    message(STATUS "Minimal optimization, debug info included")
    add_compile_options(-Og -g)
endif ()

#             可修改
include_directories(
        Firmware/CMSIS
        Firmware/CMSIS/GD/GD32F4xx/Include
        Firmware/GD32F4xx_standard_peripheral/Include
        Hardware/LED
        Hardware/Include
        User
)

add_definitions(
        -DGD32F470
        -DUSE_STDPERIPH_DRIVER
        -DARM_MATH_LOOPUNROLL
)

file(GLOB_RECURSE SOURCES
        "startup/startup_gd32f450.S"
        "Firmware/CMSIS/GD/GD32F4xx/Source/*.c"
        "Firmware/GD32F4xx_standard_peripheral/Source/*.c"
        "Hardware/LED/*.*"
        "Hardware/Source/*.*"
        "User/*.*"
        )
# 可修改结束

set(LINKER_SCRIPT ${CMAKE_SOURCE_DIR}/gd32f450z_flash.ld)
add_link_options(-Wl,-gc-sections,--print-memory-usage,-Map=${PROJECT_BINARY_DIR}/${PROJECT_NAME}.map)
add_link_options(-mcpu=${MCPU} -mthumb -mthumb-interwork --specs=nosys.specs)
add_link_options(-T ${LINKER_SCRIPT})

add_executable(${PROJECT_NAME}.elf ${SOURCES} ${LINKER_SCRIPT})

set(HEX_FILE ${PROJECT_BINARY_DIR}/${PROJECT_NAME}.hex)
set(BIN_FILE ${PROJECT_BINARY_DIR}/${PROJECT_NAME}.bin)

add_custom_command(TARGET ${PROJECT_NAME}.elf POST_BUILD
        COMMAND ${CMAKE_OBJCOPY} -Oihex $<TARGET_FILE:${PROJECT_NAME}.elf> ${HEX_FILE}
        COMMAND ${CMAKE_OBJCOPY} -Obinary $<TARGET_FILE:${PROJECT_NAME}.elf> ${BIN_FILE}
        COMMENT "Building ${HEX_FILE}
Building ${BIN_FILE}")