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DMA for the Omap3530 beagle borard query

Hi,

  I'm using the beagle board for a project, I want to transfer some datas from the SDRAM location 0x80700000 to destination 0x80C00000 via DMA.

 that is I want to transfer 50 bytes of data 0xAA from the source to the destination.  I read the DMA module of the processor data sheet, in that it is explained for to transfer a image of size 240 x 160.

my case is different I want to transfer some data and not the image.

So can somebody please expain the procedure for the data  transfer via DMA.