Help with PMOD DA3 on PYNQ Z1 board

[rajareanne]

Hi, everyone, I am trying to build a PYNQ-Z1 (or Z2) firmware design to generate 10KHz sine wave using a PMOD-DA3. Is it possible to use the onboard DDR to write a long sequence denoting the sine wave? Does the DDR support streaming of data? Thank you!

[Niță Eduard]

Hello @rajareanne,
I would say it is possible to use the DDR to write a long sequence representing the sine wave. For streaming purposes, I think it would be best for you to use a DMA module.
I have found this demo, which does something quite similar to what you are looking for
https://www.hackster.io/whitney-knitter/sine-wave-generation-in-c-on-zynq-e442e4

Best wishes,
Eduard