lanwailan

找到解决方法了： 需要在跳转前加入如下 if (((*(__IO uint32_t *) USBD_DFU_APP_DEFAULT_ADD) & 0x2FFC0000) == 0x20000000) { /* Jump to user application */ __disable_irq(); //HAL_RCC_DeInit(); //HAL_DeInit(); __set_PRIMASK(0); JumpAddress = *(__IO uint32_t *) (USBD_DFU_APP_DEFAULT_ADD + 4); JumpToApplication = (pFunction) (JumpAddress); /* Initialize user application's Stack Pointer */ __set_MSP(*(__IO uint32_t *) USBD_DFU_APP_DEFAULT_ADD); __set_CONTROL(0); JumpToApplication(); }