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Altera_Forum
Honored Contributor
Honored ContributorSGDMA debug
Hello, I am trying to learn how to use SGDMA to transfer data to memory. First of all, I am trying to connect SGDMA TX directly to SGDMA RX and check results. You can find the source code ->here<-...
Altera_ForumHonored Contributor
Honored ContributorThis is the only one I know of: http://www.alterawiki.com/wiki/modular_sgdma_video_frame_buffer
That's my mSGDMA though. The mSGDMA design example is configured for MM-->MM but it supports MM-->ST and ST-->MM as well just like the SGDMA. Complicated descriptor APIs is the price you pay for having the ability to have the SGDMA pre-fetch descriptors. Most don't need that pre-fetching so I excluded it in my implementation and made it a feature on my todo list instead. If you do switch DMAs I recommend sticking to the SGDMA installed with Quartus for ethernet stuff since I haven't heard of anyone bolting my hardware up to the nichestack.... yet.
