请问CH32V307开发板USBH调试USBD_CDC_ACM例程遇到的问题 about cherryusb_wch HOT 6 CLOSED

主机能用就用，不能用就不用，这个 port 并不完善

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只开启了打印错误的日志，返回-116，一直等待信号量超时，仿真发现是在SETUP（正常）->OUT（出错，程序机制再尝试发送一次就可以成功进入下一个状态IN，但数据应该没发出去，DEVICE端的设备查看日志根本没收到HOST端的数据）->IN（到这个状态就一直收不到DEVICE端的应答，就一直到信号量等待超时了，返回-116）。我使用WCH官方的例程验证上面这个流程是正常的，DEVICE端可以收到这个指令并响应，但它例程处理收发方式是查询寄存器方式，不是采用中断的方式，我对比很久找不出问题来。

`UINT8 HostCtrlTransfer(PUINT8 databuf,PUINT8 len)
{
UINT8 ret;
UINT8 tog = 1;
PUINT8 pBuf;
UINT16 relen;
PUINT8 pLen;
UINT32 rxlen;

pBuf = databuf;
pLen = len;

if( pLen )  *pLen = 0;
Delay_Us( 100 );
USBHSH->HOST_TX_LEN = 8;
ret = USBHostTransact( (USB_PID_SETUP<<4)|DEF_ENDP_0, 0, 200000 );
if(ret != ERR_SUCCESS)      return ( ret );                     //error

relen = pSetupReq->wLength;

if(relen && pBuf)                                           //data stage
{
   if( (pSetupReq->bRequestType) & USB_REQ_TYP_IN )            //device to host
   {
       while(relen)
       {
           if( thisUsbDev.DeviceSpeed != USB_HIGH_SPEED )
               Delay_Us( 100 );
           USBHSH->HOST_RX_DMA = (UINT32)databuf + *pLen;
           ret = USBHostTransact( (USB_PID_IN<<4)| DEF_ENDP_0, tog<<3, 20000 );
           if(ret != ERR_SUCCESS)                return ( ret );
           tog ^=1;
           rxlen = (USBHSH->RX_LEN < relen) ? USBHSH->RX_LEN : relen;
           relen -= rxlen;
           if(pLen)  *pLen += rxlen;
           if( ( USBHSH->RX_LEN == 0 ) || (USBHSH->RX_LEN & ( UsbDevEndp0Size - 1 )))  break;
        }
        USBHSH->HOST_TX_LEN = 0 ;
     }
   else
   {                                                           // host to device
      while(relen)
      {
          if( thisUsbDev.DeviceSpeed != USB_HIGH_SPEED )
              Delay_Us( 100 );
           USBHSH->HOST_TX_DMA = (UINT32)databuf + *pLen;
           USBHSH->HOST_TX_LEN = (relen >= UsbDevEndp0Size)? UsbDevEndp0Size : relen;

           ret = USBHostTransact((USB_PID_OUT<<4)|DEF_ENDP_0,  tog<<3,  20000);
           if(ret != ERR_SUCCESS)               return  ( ret );
           tog ^=1;
           relen -= USBHSH->HOST_TX_LEN;
           if( pLen )  *pLen += USBHSH->HOST_TX_LEN;
      }
    }
}
if( thisUsbDev.DeviceSpeed != USB_HIGH_SPEED )
    Delay_Us( 100 );
ret = USBHostTransact( ((USBHSH->HOST_TX_LEN) ? USB_PID_IN<<4|DEF_ENDP_0 : USB_PID_OUT<<4|DEF_ENDP_0),
        UH_R_TOG_1|UH_T_TOG_1, 20000 );

if(ret != ERR_SUCCESS)            return( ret );

if ( USBHSH->HOST_TX_LEN == 0 )   return( ERR_SUCCESS );    //status stage is out, send a zero-length packet.

if ( USBHSH->RX_LEN == 0 )        return( ERR_SUCCESS );    //status stage is in, a zero-length packet is returned indicating success.

return ERR_USB_BUF_OVER;

}`

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把log等级开到最大，再看一下log。

from cherryusb_wch.

把log等级开到最大，再看一下log。

[15:50:23.839]收←◆[INFO]APP VER: V1.0.0 Aug 12 2023 20:04:58
[INFO]SystemClk:96000000
[INFO]ChipID:30700528
[INFO]FreeRTOS Kernel Version:V10.4.6
[INFO]RT-Thread AT server (V1.3.1) initialize success.[I/USB] Dev connect
[D/USB] Port change:0x02
[D/USB] Port 1 change
[D/USB] port 1, status:0x03, change:0x03
[D/USB] Port 1, status:0x03, change:0x00
[D/USB] Port 1, status:0x03, change:0x00

[15:50:23.896]收←◆[D/USB] Port 1, status:0x03, change:0x00
[D/USB] Port 1, status:0x03, change:0x00

[15:50:23.946]收←◆[D/USB] Port 1, status:0x03, change:0x00
[I/USB] Reset port
[I/USB] Dev USB_SPEED_FULL

[15:50:24.159]收←◆[I/USB] New full-speed device on Hub 1, Port 1 connected
[D/USB] USBHS_HOST->HOST_TX_CTRL:20
[D/USB] USBHS_HOST->HOST_RX_CTRL:28
[D/USB] ep0 rx_len:8
[D/USB] USBHS_HOST->HOST_TX_CTRL:28
[D/USB] S-> I-> O-status stage: In:8
[D/USB] Device rev=0200 cls=ef sub=02 proto=01 size=64
[D/USB] USBHS_HOST->HOST_TX_CTRL:20
[D/USB] USBHS_HOST->HOST_RX_CTRL:28
[D/USB] S-> O-> In-status stage: Out:0
[D/USB] USBHS_HOST->HOST_TX_CTRL:20
[D/USB] USBHS_HOST->HOST_RX_CTRL:28
[D/USB] ep0 rx_len:18
[D/USB] USBHS_HOST->HOST_TX_CTRL:28
[D/USB] S-> I-> O-status stage: In:18
[I/USB] New device found,idVendor:ffff,idProduct:ffff,bcdDevice:0100
[D/USB] USBHS_HOST->HOST_TX_CTRL:20
[D/USB] USBHS_HOST->HOST_RX_CTRL:28
[D/USB] ep0 rx_len:9
[D/USB] USBHS_HOST->HOST_TX_CTRL:28
[D/USB] S-> I-> O-status stage: In:9
[D/USB] USBHS_HOST->HOST_TX_CTRL:20
[D/USB] USBHS_HOST->HOST_RX_CTRL:28
[D/USB] ep0 rx_len:64
[D/USB] ep0 rx_len:11
[D/USB] USBHS_HOST->HOST_TX_CTRL:28
[D/USB] S-> I-> O-status stage: In:75
[I/USB] Interface Descriptor:
[I/USB] bLength: 0x09
[I/USB] bDescriptorType: 0x04
[I/USB] bInterfaceNumber: 0x00
[I/USB] bAlternateSetting: 0x00
[I/USB] bNumEndpoints: 0x01
[I/USB] bInterfaceClass: 0x02
[I/USB] bInterfaceSubClass: 0x02
[I/USB] bInterfaceProtocol: 0x01
[I/USB] iInterface: 0x02
[I/USB] Ep=83 Attr=03 Mps=8 Interval=10 Mult=00
[I/USB] Interface Descriptor:
[I/USB] bLength: 0x09
[I/USB] bDescriptorType: 0x04
[I/USB] bInterfaceNumber: 0x01
[I/USB] bAlternateSetting: 0x00
[I/USB] bNumEndpoints: 0x02
[I/USB] bInterfaceClass: 0x0a
[I/USB] bInterfaceSubClass: 0x00
[I/USB] bInterfaceProtocol: 0x00
[I/USB] iInterface: 0x00
[I/USB] Ep=02 Attr=02 Mps=64 Interval=00 Mult=00
[I/USB] Ep=81 Attr=02 Mps=64 Interval=00 Mult=00
[I/USB] The device has 2 interfaces
[D/USB] USBHS_HOST->HOST_TX_CTRL:20
[D/USB] USBHS_HOST->HOST_RX_CTRL:28
[D/USB] S-> O-> In-status stage: Out:0
[I/USB] Enumeration success, start loading class driver
[I/USB] Loading cdc_acm class driver
[D/USB] USBHS_HOST->HOST_TX_CTRL:20
[D/USB] USBHS_HOST->HOST_RX_CTRL:28
[D/USB] ep0 rx_len:7
[D/USB] USBHS_HOST->HOST_TX_CTRL:28
[D/USB] S-> I-> O-status stage: In:7
[I/USB] Get linecoding 2000000 0 0 8
[D/USB] USBHS_HOST->HOST_TX_CTRL:20
[D/USB] USBHS_HOST->HOST_RX_CTRL:28
[D/USB] S-> O-> In-status stage: Out:0
[D/USB] USBHS_HOST->HOST_TX_CTRL:20
[D/USB] USBHS_HOST->HOST_TX_CTRL:28
[D/USB] Control endpoint out nak and retry, length:7
[D/USB] ep0 tx_len:7
[D/USB] USBHS_HOST->HOST_RX_CTRL:28

[15:50:25.185]收←◆[E/USB] Fail to set linecoding, ret: -116
[I/USB] Loading cdc_data class driver

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