USB on Atlasis board

kaouther · ‎2004-08-25

Posted on August 25, 2004 at 09:08

kaouther · ‎2004-08-24

Posted on August 25, 2004 at 08:46

I have problem with USB device detection and data corruption on the STPC Atlasis board.

Does any one get this problem? How to get the Atlas USB working correclty?

Thx.

kaouther · ‎2004-08-25

Posted on August 25, 2004 at 09:08

Yes, this problem is resolved and it was an impedance mismatch on the board. This is the workaround.

Add two capacitors to ground (100pF) on USB D- line after the ESD device

USBDF01.

The USB was tested with different devices under Wince4.2 & Win98 and it works correctly.