git checkout -- target_f1/Middlewares/Third_Party/FreeRTOS/Source/CMSIS_RTOS/cmsis_os.h
git checkout -- target_f1/Makefile
git checkout -- target_f1/Inc/FreeRTOSConfig.h
git checkout -- target_f1/Src/stm32l4xx_it.c
git checkout -- target_f1/Src/usbd_conf.c
git checkout -- target_f1/Src/usbd_desc.c