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Altera_Forum
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15 years ago

Arria II GX DDR2 issues with .QSF file

I have been banging my head against a wall for the last day and I hope I can get a solution to this. Challenge: Generated a HPCII DDR2 controller using the Megawizard, not an issue. The top ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

IO Standard for DQS/DQSn should be Differential SSTL-18 Class I. When you enter pin AM25, edit the differential column and change mem_dqs[0](n) to mem_dqsn [0]

I spent some time on this and finally got the example_top to work. The documentation and material that comes with the kit is very hard to follow and not as complete or clear as it could be.