Forum Discussion
Altera_Forum
Honored Contributor
Honored ContributorDMA transfer
I copied an example from the Altera Nios II Software Developer’s Handbook, chapter "Using DMA Devices" using memory to memory data transfer. I modified the code a bit ..... The good thing is th...
Altera_ForumHonored Contributor
Honored ContributorI was just using the "full" example design that comes with the kit. The one change I did have to make to your code was to chane the device name to /dev/dma to match what was used in the example.
Try comparing and contrasting these example with what you have to see if you can see the problem. It could be that you haven't connected the DMA read and write master ports so that it can access the memories you're tying to use.
