I recently finished this tutorial, But I have a project that needs MM AXI, Can anyone tell me how to use CDMA instead of DMA and how to communicate with it in pynq?
What are you trying to do?
PYNQ uses contiguous memory buffers, so only the AXI Direct Memory Access IP is supported.
You can built other designs with other DMAs. There won’t be a PYNQ Python driver for this IP, but you could build your own with PYNQ MMIO.