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Altera_Forum's avatar
Altera_Forum
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11 years ago

PCIe Hard IP returning stale data for Cyclone IV

I have recently ported a PCIe endpoint design working on Arria V to Cyclone IV , ( Transciever Starter Kit ) . I need to go back but don't believe I see the problem on Arria V which is a very ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

Try signaltap on the internal memory.

Make sure the nios data cache isn't (somehow) causing grief.

You probably want to tightly couple the internal memory to the nios and dual port it to the avalon bus and hence the PCIe slave.