teensy4-rs

A collection of crates for Rust development on the Teensy 4. Supports both the Teensy 4.0 and 4.1 boards.

[API Docs (`master`)]

Dependencies

A Rust installation. Install Rust using rustup. We support the latest, stable Rust toolchain.
The thumbv7em-none-eabihf Rust target, which may be installed using rustup:
```
rustup target add thumbv7em-none-eabihf
```
A capable objcopy for transforming Rust binaries into hex files. The documentation and tooling in the project uses the LLVM objcopy provided by [cargo-binutils]. Install [cargo-binutils] if you want to precisely follow this documentation.
To download programs to your Teensy 4, you'll need either a build of [teensy_loader_cli], or the [Teensy Loader Application]. The latter is available with the Teensyduino add-ons.

Getting started

Use our cargo-generate template, [teensy4-rs-template], to bootstrap your own teensy4-rs project based on these libraries:

cargo install cargo-generate
cargo generate --git https://github.com/mciantyre/teensy4-rs-template --name hello-world
cd hello-world
cargo objcopy --release -- -O ihex hello-world.hex

Download hello-world.hex to your Teensy 4!

See the Rust documentation for API information. In particular, study the [imxrt-hal APIs], since the BSP forwards many of the HAL's interfaces:

cargo doc --open

Try the various examples in this project's [examples directory] if you'd like to test your system.

Contributing

We welcome support! A great way to contribute is to start using the crates to develop Teensy 4 applications. Submit an issue to help us identify bugs, feature requests, or documentation gaps. See [CONTRIBUTING.md] to learn about the best issue tracker for your request.

If you want to directly contribute to the teensy4-rs project, read the development guidance in [CONTRIBUTING.md].

Acknowledgements and References

The [Teensy 4] is wonderful, and that's thanks to the hard work of PJRC and friends. We can find the Teensy code used in the Arduino plugins [here]. The code greatly influenced this library.
The Rust Cortex M team, specifically the [cortex-m-rt] crate.

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.