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Indeed - my mistake. I found only the product brief shipped with the kit.
Going back to your original issue - does your code allow the Phy time to 'settle' before trying to configure it? By the time you re-load the elf it's been running for a number of seconds. Are you simply trying to do 'something' too early?
Do you write to address 20 in your code? Comment it out if so. I doubt it's relevant. I remember not having to do any configuration to get the Phy working.
Cheers,
Alex
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Alex, i'm not sure why, but it seems MDIO register 20 for setting up the delay for the I/O clock for Gigabit DDIO seems necessary in my case. I tried removing the line, but transmission seems to stop. Only when it is enabled does the traffic resume.
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