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Altera_Forum
Honored Contributor
Honored ContributorModular SGDMA seems to not read properly
I am having an issue with the Modular SGDMA IP. I am using it to feed my video pipeline with data by using a memory mapped to streaming configuration. I have configured it to read the data from my SD...
Altera_ForumHonored Contributor
Honored ContributorCould it be a data cache problem? When you write to the SDRAM you should flush the data cache before starting the DMA. If you don't flush the cache the SDRAM could still have the old values and not the new ones you wrote. Alternatively you can also use uncached access to the SDRAM.
