Can't get USB1 working as a device on custom design.

Hello Jeff,
**************************Changes in Starterware USB library for USB1 As A Device***************************
1) usbdenum.c file:
	 USBDeviceEnumHandler() function : USBDReadAndDispatchRequest(0) --> USBDReadAndDispatchRequest(ulIndex);
2) usbdenum.c file:
	 USBDeviceEnumHandler() function :USBDReadAndDispatchRequest(0) --> USBDReadAndDispatchRequest(ulIndex);
3) usbdenum.c file::
	USBDSetConfiguration() function : USBDeviceConfig(0, psDevice->ppConfigDescriptors[pUSBRequest->wValue - 1], psDevice->psFIFOConfig);
						---> USBDeviceConfig(ulIndex, psDevice->ppConfigDescriptors[pUSBRequest->wValue - 1], psDevice->psFIFOConfig);

4) usbdcdc.c file :HandleRequests() function :  USBDCDRequestDataEP0(0, (unsigned char *)&psInst->sLineCoding, sizeof(tLineCoding));
						---> USBDCDRequestDataEP0(ulIndex, (unsigned char *)&psInst->sLineCoding, sizeof(tLineCoding));

5) usbdcdc.c file :HandleRequests() function : USBDCDRequestDataEP0(0, (unsigned char *)&psInst->sLineCoding,sizeof(tLineCoding));
						---> USBDCDRequestDataEP0(ulIndex, (unsigned char *)&psInst->sLineCoding,sizeof(tLineCoding));

6) Similarly Change in the HandleRequets( ) in usbdmsc.c amd usbdbulk.c

Cheers
Rama Krishna

Rama,

Thanks for your help.  However, USB1 is still coming up unrecognized.  I did find a few other places that need similar changes and I made them with no change in the result.  I went back to USB0 and that still works so I'm sure I did not wreck the files.  

Any other thoughts on what I'm missing?

Jeff

Hello Jeff,

                We change the similar changes as mentioned above, its working fine. Will u please mention what changes u did for USB1 & what is your platform?

I think u Correctly initialize the interrupts and handler? Please elaborate the problem r u facing ?

Regards

Rama Krishna

Rama,

The custom board is based on the EVM-SK design.  The usb of the AM3352 was stripped down to direct access to the external usb connectors following the the USB1 design on the TMDSSK3358 schematic.  USB0 is setup as a USB AB and USB1 is setup as a USB B (device).  USB1_ID is not connected, but I did leave the protection zener and the capacitor attached.  Do you think they need to be removed so that pin is truely floating?  

Focusing on the usb_dev_bulk design, I went back and started with a fresh set of startware files (AM335X_StarterWare_02_00_01_01) and made the following changes:

Usbdenum.c

• Modified USBDReadAndDispatchRequest(0) -> 2 places

• Modified USBDeviceConfig(0,

• Removed ASSERT(ulIndex == 0);   ->10 places

Usbdcdc.c

• Removed ASSERT(ulIndex == 0);   ->2 places

• Modified USBDCDRequestDataEP0(0 ->2 places

Usbdmsc.c

• Modified USBDCDSendDataEP0(0, (unsigned char *)&ucMaxLun, 1);
• Removed ASSERT(ulIndex == 0);   ->2 places

Usbdbulk.c

• Does not have HandleRequests()
• Removed ASSERT(ulIndex == 0);  ->2 places

The main function I call:

USBDBulkInit(0, (tUSBDBulkDevice *)&g_sBulkDevice);
USBDBulkInit(1, (tUSBDBulkDevice *)&g_sBulkDevice);

just to make sure the changes are right and USB0 still works.  I also did  

USBDBulkInit(1, (tUSBDBulkDevice *)&g_sBulkDevice);

by itself.

Both cases stall at "Waiting for host ...." on the LCD and windows eventually responds with "Device unrecognized".  USB0 always connects.

I can't say that the clk and interrupt are configured correctly.  One things that's been bugging me is USB0ModuleClkConfig().  I can't find a USB1ModuleClkConfig(), and from what I've read, the function is for both USB0 and USB1.  Is that accurate? 

I've copy the USB0AINTCConfigure function of USB0 for the interrupt of USB1:

static void USB1AINTCConfigure(void)
{

/* Registering the Interrupt Service Routine(ISR). */
IntRegister(SYS_INT_USB1, USB1DeviceIntHandler);

/* Setting the priority for the system interrupt in AINTC. */
IntPrioritySet(SYS_INT_USB1, 0, AINTC_HOSTINT_ROUTE_IRQ);

/* Enabling the system interrupt in AINTC. */
IntSystemEnable(SYS_INT_USB1);

}

Thanks for your time and let me know if anything else will help narrow this down.

Jeff