Use with the Matrix Portal M4 board (ATSAMD51J19)

[murl-digital]

Hi,

I found this library while researching driving hub75 panels with rust, and I'm attempting to adapt this library for use with the Matrix Portal M4 based around the ATSAMD51J19 (datasheet) and the atsamd-hal crate. I've hit a couple brick walls that I need some help with, and considering I can't find any contact info I'm going through here.

My questions basically boil down to this:

1. You mention that the clk pin isn't managed by this library, and is intended to be used with a pwm signal. How is that supposed to look? Am I supposed to wire up the DMA trigger with the pwm signal?
2. It seems that atsamd-hal uses it's own DMA types independent of embedded_dma, can I just write an implementation of the Buffer trait?

I'd really appreciate any help you could offer!

[liebman]

Apologies for the late response!

I'd be happy to accept a PR for this.