CMakeLists.txt

## CMakeLists.txt
project(f1_blink C ASM)
cmake_minimum_required(VERSION 3.5.0)

add_definitions(-DSTM32F103x6)

file(GLOB_RECURSE USER_SOURCES "Src/*.c")
file(GLOB_RECURSE HAL_SOURCES "Drivers/STM32F1xx_HAL_Driver/Src/*.c")

add_library(CMSIS
Drivers/CMSIS/Device/ST/STM32F1xx/Source/Templates/system_stm32f1xx.c
Drivers/CMSIS/Device/ST/STM32F1xx/Source/Templates/gcc/startup_stm32f103xb.s)

include_directories(Inc)
include_directories(Drivers/STM32F1xx_HAL_Driver/Inc)
include_directories(Drivers/CMSIS/Include)
include_directories(Drivers/CMSIS/Device/ST/STM32F1xx/Include)

add_executable(${PROJECT_NAME}.elf ${USER_SOURCES} ${HAL_SOURCES} ${LINKER_SCRIPT})

target_link_libraries(${PROJECT_NAME}.elf CMSIS)

set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,-Map=${PROJECT_SOURCE_DIR}/build/${PROJECT_NAME}.map")
set(HEX_FILE ${PROJECT_SOURCE_DIR}/build/${PROJECT_NAME}.hex)
set(BIN_FILE ${PROJECT_SOURCE_DIR}/build/${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} \nBuilding ${BIN_FILE}")

## stm32f103.cmake
INCLUDE(CMakeForceCompiler)

SET(CMAKE_SYSTEM_NAME Generic)
SET(CMAKE_SYSTEM_VERSION 1)

# specify the cross compiler
CMAKE_FORCE_C_COMPILER(arm-none-eabi-gcc GNU)
CMAKE_FORCE_CXX_COMPILER(arm-none-eabi-g++ GNU)

SET(LINKER_SCRIPT ${CMAKE_SOURCE_DIR}/STM32F103C8Tx_FLASH.ld)
#SET(COMMON_FLAGS "-mcpu=cortex-m4 -mthumb -mthumb-interwork -mfloat-abi=soft -ffunction-sections -fdata-sections -g -fno-common -fmessage-length=0")
#SET(COMMON_FLAGS "-mcpu=cortex-m4 -mthumb -mthumb-interwork -mfloat-abi=hard -mfpu=fpv4-sp-d16 -ffunction-sections -fdata-sections -g -fno-common -fmessage-length=0")
#cortex-m3 -mthumb -Wall -g -O0
SET(COMMON_FLAGS "-mcpu=cortex-m3 -mthumb -mthumb-interwork -Wall -ffunction-sections -fdata-sections -g -fno-common -fmessage-length=0")
SET(CMAKE_CXX_FLAGS "${COMMON_FLAGS} -std=c++11")
SET(CMAKE_C_FLAGS "${COMMON_FLAGS} -std=gnu99")
SET(CMAKE_EXE_LINKER_FLAGS "-Wl,-gc-sections -T ${LINKER_SCRIPT}")