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Altera_Forum's avatar
Altera_Forum
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13 years ago

MDIO module

Hello all, I am trying to access registers in a device communicating with my CycloneIV through MDIO clause 22. I added the "Ethernet MDIO" module in my QSys design along with Nios. My ques...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

Update:

The registers are in the memory , their address is in the on-chip memory at mdio module's base address + the offset (0x20)

However, I am not able to communicate with my device since the operation code 10 (read in Clause 22) is not supported in the Altera module, which is actually built for Clause 45.

Therefore, I am switching to VHDL code for this task.