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Altera_Forum's avatar
Altera_Forum
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15 years ago

TSE + Custom PCB w/Vitesse VSC8601

Hello all, I tried to refrain from posting a question along the lines of "I can't get the TSE working...please help" lines but I am stuck. I've created a custom PCB with a cyclone III 40 (C6) ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

- Have you looked at the copper side of the PHY chip to make sure there is some activity?

- You say you're not seeing any transitions on the RGMII interface (tx pins between FPGA and PHY)? Are you sure you've got things connected properly in the FPGA because this would be strange indeed.

Jake

P.S. I just went through a nightmare of an experience debugging a VSC8221 PHY with the TSE MAC a few months ago. Turned out to be an issue with the PHY's onchip 1.2V regulator. but let's hope that's not the case for you.