Hello Alan, > The 500000 status means Babble and Stalled. In other words, the > computer's USB controller detected signals on the USB bus at a time > when the device should not have been sending anything. Maybe the > signals were electrical noise, or maybe the controller's detection > circuitry isn't working right.
Thank you for this very helpful hints! I had a look at the waveforms on the USB-Bus and discovered that the impedance between my hardware and the laptop is completely missmatched. According to an example application design from dallas semiconductor i used 2x30pF on D+ and D-. But on the Notebook side there are about 300pF. After matching this, everything works perfectly. Don't know which one of the two devices is the bad one now but it works.... Best wishes, Klaus ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
