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DMA in Scatter Gather mode with user space device driver for linux


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I have implemented DMA in simple register mode on linux i am using zedboard. i am attaching the source code file (dma_normal_final_29_12_counter_axis_test)for that. 

Now i want cyclic DMA in scatter gather mode please help me. I am taking reference of this above source code and PG021 document for AXI DMA IP but it give me error msg in ststus register and my data is not transmitting. for scatter gather mode i have made this (scatter_gather) type of code. please check it out and give me suggestion.

please help me.

thanking you,




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