AXI DMA

[peelza]

Hi

I have been trying to transfer data via axi dma using zed board from pas few weeks. i am using the following codes for kernel driver and user application but for some reason the transfer is unsuccessful.

https://github.com/mstuehn/dma_proxy

Any help is appreciates

Best regards,

 

[debugasm]

Hi,

I've tried this and it works fine.

https://github.com/jeremytrimble/ezdma

Take care also to this part for use last kernel.

https://github.com/jeremytrimble/ezdma/pull/5

debugasm

[peelza]

i can see that the example is for scatter gather mode. The one i was trying is without sg. can you suggest me a working example without sg.

 

[debugasm]

What is the problem with using "scatter gather mode" ?

Without "scatter gather mode" you can try this:

https://github.com/bmartini/zynq-xdma

but did you not have the disposition "read / write" but only "iocrtl" mode.

[peelza]

Hi

even after trying the xdma, it does not work

[jpeyron]

HI @peelza,

I do not have a lot of experience in embedded linux. With that being said I found a Xilinx AXI DMA Driver and Library (Quick Start Guide) on GitHub that might be helpful here. I would also suggest looking at the Zedboard resource center here. The community projects and additional resources sections might have some good information for you as well.

cheers,

Jon