Hi everybody,
I am using LPC 214x USB stack (open source can be downloaded from https://sourceforge.net/cvs/?group_id=160384 ) on my proprietary ARM board with LPC 2148 microcontroller chip.
But I am facing problems.
When i run it , and plug in then USB LINK led lights up and when unplugged goes off.
But my linux machine is not able to detect any USB device when plugged in and on windows machine it shows "Unknown USB device attached."
When i enable debug prints then results what i found is that the device is not getting end point (EP SLOW) interrupts.
Where as at the end of main function there is continuous while loop polling for interrupt. In which it checks value of USB device Interrupt status register(0xE0090000) and accordingly call handler routines.
Am i missing with anything ? is there anything i need to do?
Please help me.
Thanks & regards,
Pratik.
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USB driver problem LPC-2148
2006-06-01 by pratik pujar