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SDMA with the DM3730 (Beagleboard-Xm) : How to link DMA request source to DMA Channels

J.F Gagnon
Prodigy 210 points
Other Parts Discussed in Thread: DM3730

Hi everyone, 

I am currently working with the beagleboard-xm (DM3730) and I am trying to make the SDMA works. From what I can understand, you have to link one or more DMA request line (S_DMA_0 to S_DMA_95) to one of the 32 SDMA channels and then link the channels to one of the 4 SMDA interrupt lines.

My problem is : How can I link the DMA request line (0...95) to one of the 32 channels.

If it changes anything, I am working with QNX OS. 

I don't know what to do to make it work from scratch.

Thank you

Jean-Francois