CFLAGS += -DSTM32H743xx -DHSE_VALUE=8000000 # Default is FulSpeed port PORT ?= 0 SRC_S += $(ST_CMSIS)/Source/Templates/gcc/startup_stm32h743xx.s LD_FILE = $(BOARD_PATH)/stm32h743xx_flash.ld # For flash-jlink target JLINK_DEVICE = stm32h743zi # flash target using on-board stlink flash: flash-stlink