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Altera_Forum
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12 years ago

Can't ping:TSE+DP83848K+RMII

Dear all, Recently I debug the board designed by myself. I use dp83848K and take the rmii mode. I got the rmii to mii code from Daixiwen. Now I can't ping my board. I've test the mac_...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
12 years ago

Try to use Signaltap to debug the system. Check first that when you get a packet on mac_rxd[4..0], that you also get it out on the MAC's Avalon Stream RX interface.

Check also that the receive SGDMA is working. It should read the first descriptor when the system initializes, and when a packet arrives on the Avalon Stream interface, it should read it and write it to m_write.

I see that you are using descriptor memory blocks, is the driver configured correctly to use them?