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Altera_Forum
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15 years ago

Cyclone III, read write errors with True Dual Port M9K Memory

Hello Everyone, i am having some problems with using M9K block on Cyclone III, following is the detail of my system configuration, and the workout i have done till now and their results, if any on...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

This is definitely a timing problem.

I think you are reading memory data before addr lines have set up (then you get data from a different address) or before data lines have set up.

Have you tried to add wait states on memory access: usually this fixes the problem in such cases.

Are you sure the data is written correctly into memory and the problem is on the read side?

Regards