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USB PORT1 : Bulk device through starterware not working

Dear all,

From past 5 days, we are desperately trying to make starterware USB lib to work for USB Port1 on our custom  hardware.

We have ID pin in the hardware left open to work in device mode. We have used a Micro B adapter to connected to our board. We have the stellaris USB driver exeucted on the Windows7 PC, and inf ffile has been set for VID = 1CBE and PID 3

We have used starterware example program for USB bulk transfer. We have indicated USB port as Port1 in the function calls. Also, inside few functions ASSERT (ulindex=0) has been modified to (ulindex=1).

Still the program is not working . On PC, we got message as "Device not recognized" / "Unknown device". 

We want to work in Full speed mode (12Mbps). But library is having the code for 480mbps (we could find it from a USB sniffer on the PC). Can anyone tell me where to make the change in the library sot hat speed will be set for 12Mbps?

Presently we have set power control register bit HS to 0 so that full speed mode is selected (this we have done from debugger as we don't know where to change in the library).

Can anyone tell me when do we get a message "Device not recognized" / "Unknown device" on the PC? Also, there is a #define in dev_structs for revision as 110. Why it is not set to 020 (indicating revision number as 2)??

Please respond at the earliest..