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Altera_Forum
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15 years ago

PHY Transmission - Arria II GX

I am attempting to send a packet over the PHY (Marvell 88E1111) on my Arria II GX board. I followed instructions on how to generate the correct signals. This is done through a large state machine in ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

The preamble length can vary, depending on the time the PHY needs to lock on the incoming clock, but it should always finish with 5D. If it doesn't, you may still have a problem with your RGMII input, possibly a timing problem.