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Altera_Forum
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14 years ago

Configuring triple speed ethernet MAC with National DP83640 PHY in MII interface

I have made my own custom Cyclone IV Nios board with two DP8360 PHY. I also used the TSE MAC from Altera. I'm trying to test this board using the simple socket application. First I've upda...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

Are you sure the PHY chip is actually working? You can add some Signaltap probes to the interface between the TSE mac and the PHY chip to see if packets are coming and going.

Are you sure the DP83640 is using the same specific register as the DP83848C? I find it odd that this function doesn't actually check the link status... it just assumes that the link is established at 100MBps if the PHY doesn't report 10Mbps. To be thorough, it would require an additional step here.