Hi Roger,


What are the symptoms you see when this issue triggers?

The symptoms are erroneous USB transaction, seen with a USB port analyzer. These only sometimes (not always) stall the USB communication, e.g. a USB mass storage device cant be read any longer.


What is the test case to trigger the error? Is it just running any USB I/O for
long enough time?

Our scenario to reproduce was rebooting a warmed up board (either let it run for >5min or heat up in climate chamber).

However, the beagle probably uses a 26 MHz crystal oscillator (our board uses 19.2MHz), so the PLL5 dividers may be set in a way that the problem never occurs.

I have a beagle-xm (DM3730 ES1.2) with me and would like to reproduce the error.

cheers,
-roger


regards,
Andreas
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