from building import * src_bsp = ['application.c', 'startup.c', 'board.c', 'stm32f4xx_it.c'] src_drv = ['usart.c', 'serial.c'] src = src_bsp + src_drv CPPPATH = [GetCurrentDir()] group = DefineGroup('Startup', src, depend = [''], CPPPATH = CPPPATH) Return('group')