use lpcusblib in LPC1788 chip

mini92 — Fri, 19 May 2017 03:16:54 GMT

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
}

Re: use lpcusblib in LPC1788 chip

soledad — Wed, 24 May 2017 22:07:44 GMT

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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Re: use lpcusblib in LPC1788 chip

mini92 — Thu, 25 May 2017 06:09:03 GMT

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»Éè±¸ µÈ´ýÃ¶¾Ù
HCD_USB_SPEED DeviceSpeed;
HcdRhPortReset(corenum); //¸´Î» ¶Ë¿Ú
HcdGetDeviceSpeed(corenum,&DeviceSpeed); // »ñÈ¡ USBµÄÉè±¸ËÙ¶È full speed
USB_Host_SetDeviceSpeed(corenum, DeviceSpeed); //¸ü¸ÄÉè±¸ËÙ¶È±êÖ¾Î» full speed
HOST_TASK_NONBLOCK_WAIT(corenum, 200, HOST_STATE_Powered_ConfigPipe); //¼ÌÐøµÈ´ý200ms Ê²Ã´ÒâË¼£¿
}
break;

case HOST_STATE_Powered_ConfigPipe: // 6 ÕýÔÚÅäÖÃ¹ÜµÀ
if (!Pipe_ConfigurePipe(corenum, PIPE_CONTROLPIPE, EP_TYPE_CONTROL, //ÅäÖÃ¹ÜµÀ: Éè±¸ ¿ØÖÆ¹ÜµÀ ¿ØÖÆ¶Ëµã0
PIPE_TOKEN_SETUP, ENDPOINT_CONTROLEP, // Setup 0
PIPE_CONTROLPIPE_DEFAULT_SIZE, PIPE_BANK_SINGLE) ) { // Ä¬ÈÏ 8byte
ErrorCode = HOST_ENUMERROR_PipeConfigError;
SubErrorCode = 0;
break;
}

USB_HostState[corenum] = HOST_STATE_Default;
break;

case HOST_STATE_Default: { // 7 ÕýÔÚ¼ìË÷¿ØÖÆ¹ÜµÀµÄ´óÐ¡ £¬Ê¹ÓÃ¹ÜµÀµÄ¸ÅÄî Ã¶¾Ù
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,
};
//¸ù¾ÝÉÏÏÂÎÄÀí½âÎª »ñÈ¡Éè±¸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;
}

Re: use lpcusblib in LPC1788 chip

caimingchuancai — Fri, 21 Sep 2018 07:45:46 GMT

请问一下，最后是怎么解决的？

什么问题导致的死循环？

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