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Altera_Forum
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13 years ago

ALTMEMPHY to UNIPHY switch causes sim failure. Clock or Calibration issue?

In the process of transferring code from the Arria II GX to GZ, I migrated from the ALTMEMPHY to the UNIPHY IP. I’ve tried everything I can think of, and I have no idea how to fix this problem. I...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

I solved the issue.

It turns out that the changing in timing was not the issue, but just a red herring.

The problem was fixed by changing to the memory model created by UNIPHY.

I was using the memory model from ALTMEMPHY since I couldn't get Nativelink and the flow described in the Upgrade doc to work:

http://www.altera.com/literature/hb/external-memory/emi_uniphy_ref_upgrade.pdf

Alternatively, I couldn't figure out how to incorporate my custom logic and testbench into the example_project/simulation that UNIPHY created.