Stm32F105 USB HOST+Fatfs 枚举问题

yhn521

    MX_USB_HOST_Process();
    /* USER CODE BEGIN 3 */               
        //判断USB是否进入准备状态APPLICATION_READY
                switch(Appli_state)
    {
      /**
        * The generated code from STM32CubeMX has two "confusing" application states
        * APPLICATION_START on HOST_USER_CONNECTION and APPLICATION_READY on HOST_USER_CLASS_ACTIVE.
        * Any FatFs commands should be executed after APPLICATION_STATE_READY is reached."
        */
      case APPLICATION_READY:
        printf("ready ok\n");
      MSC_Application();
        Appli_state = APPLICATION_IDLE;
        break;
      case APPLICATION_IDLE:
      default:
        break;     
    }
可以连接 但无法进入到     case APPLICATION_READY:


串口打印
USB Device disconnected
USB Device Connected
USB Device Reset Completed
ERROR: Control error: Device not responding
USB Device Connected
USB Device Reset Completed
ERROR: Control error: Device not responding
USB Device Connected
USB Device Reset Completed
ERROR: Control error: Device not responding
USB Device Connected
USB Device Reset Completed
ERROR: Control error: Device not responding
USB Device Connected
USB Device Reset Completed

yhn521

if (USBH_Get_DevDesc(phost, 8U) == USBH_OK)   卡在这

zb15137697743

楼主，解决这个问题了吗？

zb15137697743

楼主解决了吗？