cmake_minimum_required(VERSION 3.10)

project(STM32H750XB_Hello)

enable_language(CXX)
enable_language(ASM)

# Device specific settings, goes to CFLAGS and LDFLAGS
set(CFLAGS_HARDWARE "-mcpu=cortex-m7 -mfpu=fpv5-d16 -mfloat-abi=hard -mthumb")

# Extra CFlags
set(CFLAGS_EXTRA "-Og")
set(LDFLAGS_EXTRA "-Wl,--print-memory-usage")

# Different linker scripts
set(LDSCRIPT_FLASH "${CMAKE_SOURCE_DIR}/STM32H750XBHx_FLASH.ld")
set(LDSCRIPT_RAM "${CMAKE_SOURCE_DIR}/STM32H750XBHx_RAM.ld")

# Copy them from Makefile
set(C_SOURCES
    "Core/Src/main.c"
    "Core/Src/freertos.c"
    "Core/Src/stm32h7xx_it.c"
    "Core/Src/stm32h7xx_hal_msp.c"
    "Core/Src/stm32h7xx_hal_timebase_tim.c"
    "Core/Src/user_tasks.c"
    "Core/Src/tasks/sdram_task.c"
    "Core/Src/printf_impl.c"
    "Middlewares/Third_Party/printf/printf.c"
    "Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_cortex.c"
    "Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_rcc.c"
    "Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_rcc_ex.c"
    "Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_flash.c"
    "Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_flash_ex.c"
    "Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_gpio.c"
    "Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_hsem.c"
    "Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_dma.c"
    "Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_dma_ex.c"
    "Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_mdma.c"
    "Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_pwr.c"
    "Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_pwr_ex.c"
    "Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal.c"
    "Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_i2c.c"
    "Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_i2c_ex.c"
    "Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_exti.c"
    "Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_rtc.c"
    "Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_rtc_ex.c"
    "Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_tim.c"
    "Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_tim_ex.c"
    "Core/Src/system_stm32h7xx.c"
    "Middlewares/Third_Party/FreeRTOS/Source/croutine.c"
    "Middlewares/Third_Party/FreeRTOS/Source/event_groups.c"
    "Middlewares/Third_Party/FreeRTOS/Source/list.c"
    "Middlewares/Third_Party/FreeRTOS/Source/queue.c"
    "Middlewares/Third_Party/FreeRTOS/Source/stream_buffer.c"
    "Middlewares/Third_Party/FreeRTOS/Source/tasks.c"
    "Middlewares/Third_Party/FreeRTOS/Source/timers.c"
    "Middlewares/Third_Party/FreeRTOS/Source/CMSIS_RTOS_V2/cmsis_os2.c"
    "Middlewares/Third_Party/FreeRTOS/Source/portable/MemMang/heap_4.c"
    "Middlewares/Third_Party/FreeRTOS/Source/portable/GCC/ARM_CM4F/port.c"
    "Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_ll_fmc.c"
    "Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_sdram.c"
    "Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_uart.c"
    "Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_uart_ex.c"
)

# Copy them from Makefile
set(ASM_SOURCES
    "startup_stm32h750xx.s"
)

# Copy them from Makefile
add_definitions(
    "-DSTM32H750xx"
    "-DUSE_HAL_DRIVER"
)

# Copy them from Makefile
include_directories(
    "Core/Inc"
    "Drivers/STM32H7xx_HAL_Driver/Inc"
    "Drivers/STM32H7xx_HAL_Driver/Inc/Legacy"
    "Middlewares/Third_Party/FreeRTOS/Source/include"
    "Middlewares/Third_Party/FreeRTOS/Source/CMSIS_RTOS_V2"
    "Middlewares/Third_Party/FreeRTOS/Source/portable/GCC/ARM_CM4F"
    "Drivers/CMSIS/Device/ST/STM32H7xx/Include"
    "Drivers/CMSIS/Include"
    "Middlewares/Third_Party/printf"
)

# Final compiler flags
set(CMAKE_C_FLAGS "${CFLAGS_HARDWARE} ${CFLAGS_EXTRA} -Wall -fdata-sections -ffunction-sections")
set(CMAKE_CXX_FLAGS "${CFLAGS_HARDWARE} ${CFLAGS_EXTRA} -Wall -fdata-sections -ffunction-sections")
set(CMAKE_EXE_LINKER_FLAGS "${CFLAGS_HARDWARE} -specs=nano.specs -Wl,--gc-sections -lc -lm -lnosys ${LDFLAGS_EXTRA}")

# Main targets are added here

# **** Internal Flash ****

# Create ELF
add_executable("${CMAKE_PROJECT_NAME}_FLASH.elf" ${C_SOURCES} ${ASM_SOURCES})

target_link_options("${CMAKE_PROJECT_NAME}_FLASH.elf"
    PRIVATE "-T${LDSCRIPT_FLASH}"
    PRIVATE "-Wl,-Map=${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_PROJECT_NAME}_FLASH.map,--cref"
)

target_compile_options("${CMAKE_PROJECT_NAME}_FLASH.elf"
    PRIVATE "${FINAL_C_FLAGS}"
)

add_custom_command(OUTPUT "${CMAKE_PROJECT_NAME}_FLASH.hex"
    COMMAND ${CMAKE_OBJCOPY} "-O" "ihex" "${CMAKE_PROJECT_NAME}_FLASH.elf" "${CMAKE_PROJECT_NAME}_FLASH.hex"
    DEPENDS "${CMAKE_PROJECT_NAME}_FLASH.elf"
)
add_custom_target("${CMAKE_PROJECT_NAME}_FLASH_HEX"
    DEPENDS "${CMAKE_PROJECT_NAME}_FLASH.hex"
)

# **** All In SRAM ****

# Create ELF
add_executable("${CMAKE_PROJECT_NAME}_RAM.elf" ${C_SOURCES} ${ASM_SOURCES})

# Linker script and Map files
target_link_options("${CMAKE_PROJECT_NAME}_RAM.elf"
    PRIVATE "-T${LDSCRIPT_RAM}"
    PRIVATE "-Wl,-Map=${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_PROJECT_NAME}_RAM.map,--cref"
)

# Additional defines
target_compile_definitions("${CMAKE_PROJECT_NAME}_RAM.elf"
    PRIVATE "VECT_TAB_SRAM"
)

add_custom_command(OUTPUT "${CMAKE_PROJECT_NAME}_RAM.hex"
    COMMAND ${CMAKE_OBJCOPY} "-O" "ihex" "${CMAKE_PROJECT_NAME}_RAM.elf" "${CMAKE_PROJECT_NAME}_RAM.hex"
    DEPENDS "${CMAKE_PROJECT_NAME}_RAM.elf"
)

add_custom_target("${CMAKE_PROJECT_NAME}_RAM_HEX"
    DEPENDS "${CMAKE_PROJECT_NAME}_RAM.hex"
)