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Observer edu30692
Observer
3,350 Views
Registered: ‎11-25-2016

DMA user space driver

Hi,

I'm trying to use AXI DMA to transfer data to a custom IP on the PL side. Firstly i'm tryng to test it with the transmit stream looped back. I have tried to test it following this  https://forums.xilinx.com/xlnx/attachments/xlnx/ELINUX/10693/1/Linux%20DMA%20from%20User%20Space-public.pdf, creating a DMA Proxy Device Driver to mapping a kernel space allocated memory buffer into user space but i'm having a lot of problems. Is there any simple example to do it?. I'm using a zcu102 board (Zynq UltraScale+) with a Linux Kernel. Any idea?

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