flags = [
'-I./STM32_USB-FS-Device_Lib_V4.0.0/Libraries/STM32F10x_StdPeriph_Driver/inc',
'-I./STM32_USB-FS-Device_Lib_V4.0.0/Libraries/CMSIS/Include',
'-I./STM32_USB-FS-Device_Lib_V4.0.0/Libraries/CMSIS/Device/ST/STM32F10x/Include',
'-DSTM32F10X_XL',
'-DUSE_STDPERIPH_DRIVER'
]