MCU_LDSCRIPT = STM32F103x8_0x08006000_bootloader DFU_ARGS = -d 1688:2220 -a 0 -s 0x08006000 DFU_SUFFIX_ARGS = -v 1688 -p 2220 BOOTLOADER_TYPE = stm32duino OPT_DEFS += -DBOOTLOADER_STM32DUINO