I am using EDMA lld for OMAP L138. I found out that one single data transfer would require about 10µs.. That seems a little bit slow to me. The method I used to test the elapsed time is adding CLK_gethtime() before and after the while (irqRaised1 == 0u) block in dma_test.c from the sample code. Running under CSS environment, the time elapse gauged this way ranges from 2300 to 3000. My question is: is there any way to lower the time to somewhere below 4ns? If it is possible, how should I do it?
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