We have a self developed G45 board. The USB device port works fine as long as we are connected directly to the USB-Root hub. As soon as we insert a USB (device/non-root) hub even the get descriptor transfers are not working properly.

Meanwhile we also tested our code (which tightly bases on the SW package) with an AT91SAM9M20EK and see the same problem. Now we assume a silicon bug.

I checked the signal integrity and they look also good.

Has anybody the USB device port running and could test it also with an additional hub on Windows XP 32?
If your board works, could you please send me the source code of the UDPHS initialization code? Maybe we have a bug there...


2011-01-19: Has nobody experience with this? A quick "woks" or "doesn't work" would help me. Reported this problem 10 days ago to Atmel but with no response...

Hi.

I have just experienced similar problem as you described with 9G20. I started this thread: http://article.gmane.org/gmane.linux.usb.general/56591 and I am still investigating.

Did you happen to solve the problem? Your problem was device related, not host?

best regards
Janusz