va416xx-rs/va416xx-hal/README.md
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Monorepo for Rust support of VA416XX family of radiation hardened MCUs
2024-06-25 20:01:21 +02:00

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# HAL for the Vorago VA416xx MCU family
This repository contains the **H**ardware **A**bstraction **L**ayer (HAL), which is an additional
hardware abstraction on top of the [peripheral access API](https://egit.irs.uni-stuttgart.de/rust/va416xx-rs/src/branch/main/va416xx).
It is the result of reading the datasheet for the device and encoding a type-safe layer over the
raw PAC. This crate also implements traits specified by the
[embedded-hal](https://github.com/rust-embedded/embedded-hal) project, making it compatible with
various drivers in the embedded rust ecosystem.
## Supported Boards
The first way to use this HAL will probably be with the
[PEB1 development board](https://www.voragotech.com/products/peb1va416x0-development-kit).
The BSP provided for this board also contains instructions how to flash the board.
## Building
Building an application requires the `thumbv7em-none-eabihf` cross-compiler toolchain.
If you have not installed it yet, you can do so with
```sh
rustup target add thumbv7em-none-eabihf
```
After that, you can use `cargo build` to build the development version of the crate.
If you have not done this yet, it is recommended to read some of the excellent resources
available to learn Rust:
- [Rust Embedded Book](https://docs.rust-embedded.org/book/)
- [Rust Discovery Book](https://docs.rust-embedded.org/discovery/)
## Setting up your own binary crate
If you have a custom board, you might be interested in setting up a new binary crate for your
project. These steps aim to provide a complete list to get a binary crate working to flash
your custom board.
The hello world of embedded development is usually to blinky a LED. This example
is contained within the
[examples folder](https://egit.irs.uni-stuttgart.de/rust/va416xx-rs/src/branch/main/examples/simple/examples/blinky.rs).
1. Set up your Rust cross-compiler if you have not done so yet. See more in the [build chapter](#Building)
2. Create a new binary crate with `cargo init`
3. To ensure that `cargo build` cross-compiles, it is recommended to create a `.cargo/config.toml`
file. A sample `.cargo/config.toml` file is provided in this repository as well
4. Copy the `memory.x` file into your project. This file contains information required by the linker.
5. Copy the `blinky.rs` file to the `src/main.rs` file in your binary crate
6. You need to add some dependencies to your `Cargo.toml` file
```toml
[dependencies]
cortex-m = "<Compatible Version>"
cortex-m-rt = "<Compatible Version>"
panic-halt = "<Compatible Version>"
embedded-hal = "<Compatible Version>"
[dependencies.va416xx-hal]
version = "<Most Recent Version>"
features = ["rt"]
```
6. Build the application with `cargo build`
7. Flashing the board might work differently for different boards and there is usually
more than one way. You can find example instructions in primary README.