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Altera_Forum's avatar
Altera_Forum
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15 years ago

SGDMA 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_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Pretty much. The reason why the SGDMA didn't work on the second time was the the owned by hardware bits were low. So you could reuse those descriptors by just flipping those bits back to being high (like they were for the first time those descriptors were populated in RAM)