use lpcusblib in LPC1788 chip

[mini92]

I use lpcusblib debugging usbhost found that the program will stop in the WaitForTransferComplete

In enumdevice get devicedescription stop   waitTransferComlete 

static HCD_STATUS WaitForTransferComplete(uint8_t EdIdx)
{
#ifndef __TEST__ //
while ( HcdED(EdIdx)->status == HCD_STATUS_TRANSFER_QUEUED ) {}   //while in this
return (HCD_STATUS) HcdED(EdIdx)->status;
#else
return HCD_STATUS_OK;
#endif
}

[mini92]

hi,

   Thank you ask me ,but I did not using thread  and I'm sure my hardware is correct ，The pipe enumeration device gets the device descriptor failed，The independent enumeration device gets the device descriptor normal

pipe method：  get device description err

case HOST_STATE_Powered_DoReset: { // 5 ÔÚ¸´Î»É豸 µÈ´ýö¾Ù
HCD_USB_SPEED DeviceSpeed;
HcdRhPortReset(corenum); //¸´Î» ¶Ë¿Ú
HcdGetDeviceSpeed(corenum,&DeviceSpeed); // »ñÈ¡ USBµÄÉ豸ËÙ¶È full speed
USB_Host_SetDeviceSpeed(corenum, DeviceSpeed); //¸ü¸ÄÉ豸Ëٶȱê־λ full speed
HOST_TASK_NONBLOCK_WAIT(corenum, 200, HOST_STATE_Powered_ConfigPipe); //¼ÌÐøµÈ´ý200ms ʲôÒâ˼£¿
}
break;

case HOST_STATE_Powered_ConfigPipe: // 6 ÕýÔÚÅäÖùܵÀ
if (!Pipe_ConfigurePipe(corenum, PIPE_CONTROLPIPE, EP_TYPE_CONTROL, //ÅäÖùܵÀ: É豸 ¿ØÖƹܵÀ ¿ØÖƶ˵ã0
PIPE_TOKEN_SETUP, ENDPOINT_CONTROLEP, // Setup 0
PIPE_CONTROLPIPE_DEFAULT_SIZE, PIPE_BANK_SINGLE) ) { // ĬÈÏ 8byte
ErrorCode = HOST_ENUMERROR_PipeConfigError;
SubErrorCode = 0;
break;
}

USB_HostState[corenum] = HOST_STATE_Default;
break;

case HOST_STATE_Default: { // 7 ÕýÔÚ¼ìË÷¿ØÖƹܵÀµÄ´óС £¬Ê¹ÓùܵÀµÄ¸ÅÄî ö¾Ù
USB_Descriptor_Device_t DevDescriptor;
USB_ControlRequest = (USB_Request_Header_t)
{
.bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_DEVICE),
.bRequest = REQ_GetDescriptor,
.wValue = (DTYPE_Device << 8),
.wIndex = 0,
.wLength = 8,
};
//¸ù¾ÝÉÏÏÂÎÄÀí½âΪ »ñÈ¡É豸ÃèÊö·û
if ((SubErrorCode = USB_Host_SendControlRequest(corenum, &DevDescriptor)) != HOST_SENDCONTROL_Successful) { //sendControlRequest
ErrorCode = HOST_ENUMERROR_ControlError;
break;
}
DEBUGOUT("Get devicedescription\r\n"); //
USB_Host_ControlPipeSize[corenum] = DevDescriptor.Endpoint0Size;

Pipe_ClosePipe(corenum, PIPE_CONTROLPIPE);
HcdRhPortReset(corenum);

HOST_TASK_NONBLOCK_WAIT(corenum, 200, HOST_STATE_Default_PostReset); //µÈ´ýpipe ¸´Î»
}
break;

stand method：   get device description ok  enum ok  but speed vary low

ohciResetPort();

//PRINT_Log("\r\nreset port complete.");
/*get device desc max size*/
rc = hostGetDesc(USB_DESCRIPTOR_TYPE_DEVICE, 0, g_hostBuf, 8, 0);

if (rc != USBHOST_OK)
{
PRINT_Err(rc);
return rc;
}

/*set the deviceDesc*/
memcpy((uint8_t *)(&g_usbDevInfo->devDesc), (uint8_t *)g_hostBuf, sizeof(USB_DEV_DESC));

/*set the device address to USB_ADDR*/
rc = hostSetDevAddress(USB_ADDR, 0);

if (rc != USBHOST_OK)
{
PRINT_Err(rc);
return rc;
}
//USBHOST_DELAY(20);
rc = hostGetDesc(USB_DESCRIPTOR_TYPE_DEVICE, 0, g_hostBuf, sizeof(USB_DEV_DESC), USB_ADDR);

if (rc != USBHOST_OK)
{
PRINT_Err(rc);

return rc;
}

memcpy((uint8_t *)(&g_usbDevInfo->devDesc), (uint8_t *)g_hostBuf, sizeof(USB_DEV_DESC));

/*get configuration desc data length*/
rc = hostGetDesc(USB_DESCRIPTOR_TYPE_CONFIGURATION, 0, g_hostBuf, sizeof(USB_CONF_DESC), USB_ADDR);

if (rc != USBHOST_OK)
{
PRINT_Err(rc);

return rc;
}

/*get total description len*/
n = ReadLE16U((unsigned char *)&g_hostBuf[2]);

/*get all descriptions includes device,config,interface,endpoint*/
rc = hostGetDesc(USB_DESCRIPTOR_TYPE_CONFIGURATION, 0, g_hostBuf, n, USB_ADDR);

if (rc != USBHOST_OK)
{
PRINT_Err(rc);

return rc;
}

[caimingchuancai]

请问一下，最后是怎么解决的？

什么问题导致的死循环？

[soledad]

Hi,

Please check the below thread, I hope this helps. 

LPC1768 USB Host mode not working 

Have a great day,
Sol

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