hi,all
I have implement communication between PXA255 and Harddisk with IO
mode, but I find the data flow speed of the communication between PXA255
and Harddisk with IO mode is too slow, I would like to implement
communication between PXA255 and Harddisk with DMA mode£¬At the same time
I meet a problem, I find that the PXA255 only have the DMA Request Pin and
lack the DMA acknowledged Pin in accordance with the Harddisk Acknowledged
Pin. who can tell me how to simulate the DMA acknowledged Pin and how to
simulate the DMA acknowledged Pin.
thanks in advance