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by the way, revolt, you said you did the checksum in hw, i asume this is a function normally done by the lwip? like crc? --- Quote End --- The checksum calculation for the UDP packets is done by HW. Normally it is calculated by the lwip stack. <div align='right'><{post_snapback}> (index.php?act=findpost&pid=10396)</div> [/b] --- Quote End --- i see, i asume you do this with a custom instruction in the nios?, or did you put a discrete block of vhdl between the nios and mac/phy? and do you know if this can also be done with TCP packets? i asume so..
