Posted on May 17, 2011 at 13:34(Performance, not connectivity line USB interface.)
I’ve been having trouble loading the USB_EPxR registers. No matter what I do either in my assembly code or with my yellow J-Link-ARM debugger the registers always show zero.
When I plug in a USB cable my ISR handler is called, so I can’t be that far off base.
Doubtless, I am missing something. I hope it’s my software and not my STM3210E-EVAL board. I’ve had no problems with ADC/DMA and timer to trigger conversions so the board can’t be seriously broken.
What could cause these registers to be unsettable?
