Honored Contributor
Honored Contributorxf.gao,
I think you need to go deeper than the software. Check the wiring to and from the PHY. There is nothing special about the lwIP example. As IMS and I have said a few times here, load the Altera Simple Socket Server demo and debug that because you know without question that should work. If that won't work, it probably is hardware or something in SOPC. But our SOPC won't help you because it's probably the pin connections are bad. The way we connected SGDMA, Descriptor Memory and the busses to the NIOS II CPU are standard. We also followed a basic TSE SOPC example to get going. Be sure your clocks, bridges and desc memory are done exactly as in the example. Hmmm, maybe this is even as simple the hardware is bad or has a bad component. To answer you directly, I cannot provide the SOPC file since it has our entire product design included. I'll add that we did nothing special with the TSE, SGDMA, Desc Mem and bridges as the reference design we used. Bill
