URGENT: Peripheral to Memory DMA Transaction

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Yes, I had the DMA drivers work in one direction, but not the other.

Whatever I tried, no luck.

Look in the Quartus Handbook DMA chapter (google for altera nios dma).

The registers are explained there.

You have a status register, read and write address, length and some control bits.

you program them like you did with your periereal: IOWR(AVALON_0_BASE,reg,val);

Adresses and length should be obvious.

You only need to select the correct control bits.

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Ok. thanks! I will try it now. I am trying to transfer from peripheral to sdram. if this works, then i think it should be enough. your code is transferring from peripheral to mem or mem to peripheral?