Introduction to Rust programming on bare metal hardware

Rust code accompanying a presentation by Michael Kefeder showing how to:

• compile and run firmware on NUCLEO-H723ZG
• communicate between host to NUCLEO-H723ZG using a custom binary protocol
• introduction into RTIC v2

The original presentation and code mentionned above target a Raspberry Pico board. In this repo, that code has been ported to allow the demo to run on a NUCLEO-H723ZG board

Note The initial demo from Mike Kefeder showed how to make a USB CDC compatible device on the RP2040. We don't need this part on the NUCLEO-H723ZG because that board provides the host with a virtual serial port directly attached to the STM32 chip's USART

Video of the presentation done at Rust Zürisee March 2023: Introduction to Rust programming on bare metal hardware

pre-requisites

Ater setting up a working Rust environment including nightly compiler:

# install compilation targets
rustup target add thumbv7em-none-eabihf
# Useful for flashing over the SWD pins using the J-Link probe embedded on the NUCLEO-H723ZG board
cargo install probe-run
# most comfortable way of running and looking at logs
cargo install cargo-embed

for GDB debugging environment follow OS Specific instructions

overview of code

• nucleoh723zg-blink the classic hello world of embedded blinking a LED
• blink-host host client for the serial port over USB protocol
• blink-proto the protocol implementation for host using std and RP2040 no_std
• nucleoh723zg-rtic-usart3-serial-blinky the usb-serial communication firmware using RTIC v2 alpha (needs rust nightly)