Note the disclaimer: "This course has not yet been updated to work with the Raspberry Pi models B+ and A+. Some elements may not work, in particular the first few lessons about the LED. It has also not been updated for Raspberry Pi v2."
Reminds me of the experimental version of Stanford's CS 140/212, CS 140e, which used Rust to develop a simple operating system kernel for the Raspberry Pi 3B:
Note the disclaimer: "This course has not yet been updated to work with the Raspberry Pi models B+ and A+. Some elements may not work, in particular the first few lessons about the LED. It has also not been updated for Raspberry Pi v2."
And presumably not updated for the Pi 3,4,5 too!
Though his OS is mainly written in C, while I believe the course is mostly or all assembly.
https://github.com/mustafa-khann/tinyos
- Course web page: https://cs140e.sergio.bz/
- Accompanying material by the instructor: https://github.com/dddrrreee/cs140e-24win
Disclaimer: I've only worked through the course materials when it launched in '18, haven't actually taken the course physically, so YMMV.