Skip to content
This repository has been archived by the owner on Feb 9, 2023. It is now read-only.

Can the Vision Bonnet be moved to SPI1? #732

Open
chadwallacehart opened this issue Apr 25, 2021 · 0 comments
Open

Can the Vision Bonnet be moved to SPI1? #732

chadwallacehart opened this issue Apr 25, 2021 · 0 comments

Comments

@chadwallacehart
Copy link

I would like to add a TFT display that uses the SPI interface to my Vision Kit. I was able to do this by putting the TFT display on spi1, however the refresh rate was very slow there (using Adafruit's adafruit-circuitpython-rgb-display.

I was hoping to make use of a framebuffer copying method from /dev/fb0 that is faster. This has the advantage that all the stock examples would work without modification.

Of the framebuffer copy methods, (fbcp-ili9341)[https://github.com/juj/fbcp-ili9341] is the only project I found that works with Raspian Buster. The project requires spi0 for fast DMA-based transfers and does not allow sharing of the SPI bus so I would need to move the Vision Bonnet to another SPI.

Is it possible to move the Vision Bonnet to SPI1 with some rewiring and possibly rebuilding of the drivers to use different pins?

Sign up for free to subscribe to this conversation on GitHub. Already have an account? Sign in.
Labels
None yet
Projects
None yet
Development

No branches or pull requests

1 participant