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Altera_Forum
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14 years ago

Chaining DMA PCIe Reference Design freezes when Cpl with a "non-successful" Status

The Chaining DMA PCIe Reference Design does not handle Completions with a "non-successful status". For example, I had accidentally set the Host Address to read from the wrong place in my MRd R...
Altera_Forum's avatar
Altera_Forum
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14 years ago

Haven’t looked at the DMA design example for some months now, but assuming that nothing has changed in this regard, it does not support any completion timeout mechanism. So, it’s nice that the RC returns 001 in your case, but eventually it may not respond at all, and the DMA will again hang.

– Matthias