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Altera_Forum's avatar
Altera_Forum
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13 years ago

SGDMA Descriptors not being set

So i am having difficulty getting with my SGDMA both sending and receiving. So from doing some debugging it looks like even after i call: alt_avalon_sgdma_do_sync_transfer(transmit_DMA, &transmit_d...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

It is difficult to see anything on your screenshot. Are the SGDMA's read and write Avalon masters connected to the correct memory, the one holding your descriptors? You could use signaltap to figure out what the SGDMA is doing and if it is waiting for something.