An example project for Rust embedded

Aim

This is an example/template for how to structure embedded Rust projects such that the firmware can still be tested, i.e. cargo test still works.

Layout

There are 2 folders:

1. binary: Here all code that has hard dependencies on the hardware is located. cargo test will not work here.
2. firmware: The code here is only an #![no_std] library which can be tested with cargo test

Testing

To check the firmware crate, go to the firmware crate and run cargo test

Running

To flash and run the complete binary project, go to the binary crate and run cargo run

Getting hardware dependencies into the firmware crate

As the firmware crate will not compile if one adds hardware crates, the way to get around this is to create a trait which outlines the desired functionality, and the one implements the trait in the binary crate. This can then be passed to functions in the firmware crate that takes impl MyTrait as arguments.

Documentation

The cargo doc --open command works in both crates

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License

Licensed under either of

• Apache License, Version 2.0 (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)

• MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)

at your option.