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Altera_Forum
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15 years ago

Stratix IV GX Pin Assignment

Hi, I'm working on the Stratix IV GX 230 board and I'm trying to use the Triple Speed Ethernet in RGMII mode with MDIO. I did everything well untill the moment I needed the PIN in order to co...
Altera_Forum's avatar
Altera_Forum
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14 years ago

No PHY detected seem to indicate that the MDIO interface isn't working. How did you make the tristate buffer for the MDIO data signal?

Put some Signaltap probes on MDC, the 3 MDIO signals from the TSE, and the tristated MDIO pin to check that it is working properly and that you get an answer from the PHY.