Hey everyone, Recently someone posted a question regarding failure of configuration of FPGA's (DONE pin failing to go high). I have also been having the same problem and I think I now have a plausible reason. I'm using a TQFP package and since I haven't soldered the FPGA's themselves, I'm using sockets. It turns out that sometimes the pins on the FPGA lose contact with the pins inside the socket. This is why CONF_DONE pin fails to go high (there is no contact with the socket pin). So I depresses the conf_done pin a little using a miniature tweezer. I did this under a microscope since it is easier, otherwise it is quite easy to brak/bend the pins. So be careful. Also depress all the configuration pins to take care of other similar configuration errors. Hope this helps. Rahul -------------- next part -------------- _______________________________________________ http://www.opencores.org/mailman/listinfo/usb