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Altera_Forum
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16 years ago

Timing fails with two TSE MACs

Hi everyone, I'm working on a DBC3C40 board and I'm building a system based on the TripleSpeedEthernet sample. I need to use both Ethernet PHYs available on the board, so I added a second TSE MA...
Altera_Forum's avatar
Altera_Forum
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16 years ago

Hi SEILASER,

have you solved the two MAC problem? I encounter the similar issue now.

I work on the Stratix III dev-board. With single mac under MII the sss example works fine. After I a second mac for a quadphy hsmc card added, the first mac no longer works, but the second works.

Even when I physically isolate the second mac from the outside world (no pin assignment for the second mac), the first mac still does'nt work. that's weird...

I've got the same timing issue before and after adding the second mac.

Regards.