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Altera_Forum's avatar
Altera_Forum
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14 years ago

SGDMA data output issue

Hi, I just started to learn using sgdma to transfer data from DDR2. I have the sopc attached and please give me some idea if that is correct. Another issue is that I do not understand how ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

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I would use the "DMA" and not the "SGDMA" The DMA is much easier to work with. The only reason for using the SGDMA is if you want the DMA engine to start working on another transfer immediately after completing another bulk data transfer.

Both of those DMAs have HAL drivers so you don't have to worry about accessing the DMA hardware directly, that's the purpose of the software driver.

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I may have to use sgdma 'cause the required throughput is really high.

Anyway I will try the dma core and get back to you soon.