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Altera_Forum
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14 years ago

Modifying QSys PCIe reference design to have dual port OCM

Hi everyone, I am trying to modify the QSys PCIe reference design (AN431) for a Cyclone IV Starter Kit equivalent. The reference design works on my board after I modified the pin mappings ...
Altera_Forum's avatar
Altera_Forum
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13 years ago

Yes. It has to do with the software (I think). The software looks for a magic number at the end of the transfer buffer to signal the end of a transfer. The counter was not writing this magic number.

I changed the design to write the magic number (32 or 0x32? can't remember, its been a while). The reference software worked and I got the same transfer rates.