Transfer image through DMA

[cathalmccabe]

There are some tutorials on using DMA starting here:

Tutorial: PYNQ DMA (Part 1: Hardware design)

PYNQ DMA tutorial (Part 1: Hardware design) This tutorial will show you how to use the Xilinx AXI DMA with PYNQ. It will cover adding the AXI DMA to a new Vivado hardware design and show how the DMA can be controlled from PYNQ. This tutorial is based on the v2.6 PYNQ image and will use Vivado 2020.1. If you are using a different PYNQ version you should be able to follow the same steps in this tutorial, but you should make sure you are using the supported version of Vivado for that PYNQ release. …

The width register determines the maximum number of bytes you can transfer. The max size is 2^(REGISTER WIDTH) or 67,108,863 bytes. If your image is bigger than this, you need to split it into sections to send it.

Cathal