Robin Mueller
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74 lines
3.0 KiB
Markdown
[](https://crates.io/crates/va416xx-hal)
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[](https://docs.rs/va416xx-hal)
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# HAL for the Vorago VA416xx MCU family
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This repository contains the **H**ardware **A**bstraction **L**ayer (HAL), which is an additional
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hardware abstraction on top of the [peripheral access API](https://egit.irs.uni-stuttgart.de/rust/va416xx-rs/src/branch/main/va416xx).
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It is the result of reading the datasheet for the device and encoding a type-safe layer over the
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raw PAC. This crate also implements traits specified by the
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[embedded-hal](https://github.com/rust-embedded/embedded-hal) project, making it compatible with
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various drivers in the embedded rust ecosystem.
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You have to enable one of the following device features to use this crate depending on
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which chip you are using:
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- `va41630`
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- `va41629`
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- `va41628`
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- `va41620`
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## Building
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Building an application requires the `thumbv7em-none-eabihf` cross-compiler toolchain.
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If you have not installed it yet, you can do so with
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```sh
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rustup target add thumbv7em-none-eabihf
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```
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After that, you can use `cargo build` to build the development version of the crate.
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If you have not done this yet, it is recommended to read some of the excellent resources
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available to learn Rust:
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- [Rust Embedded Book](https://docs.rust-embedded.org/book/)
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- [Rust Discovery Book](https://docs.rust-embedded.org/discovery/)
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## Setting up your own binary crate
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If you have a custom board, you might be interested in setting up a new binary crate for your
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project. These steps aim to provide a complete list to get a binary crate working to flash
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your custom board.
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The hello world of embedded development is usually to blinky a LED. This example
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is contained within the
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[examples folder](https://egit.irs.uni-stuttgart.de/rust/va416xx-rs/src/branch/main/examples/simple/examples/blinky.rs).
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1. Set up your Rust cross-compiler if you have not done so yet. See more in the [build chapter](#Building)
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2. Create a new binary crate with `cargo init`
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3. To ensure that `cargo build` cross-compiles, it is recommended to create a `.cargo/config.toml`
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file. You can use [this](https://egit.irs.uni-stuttgart.de/rust/va416xx-rs/src/branch/main/.cargo/def-config.toml)
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sample file as a starting point.
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4. Copy the `memory.x` file into your project. This file contains information required by the linker.
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5. Copy the `blinky.rs` file to the `src/main.rs` file in your binary crate
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6. You need to add some dependencies to your `Cargo.toml` file
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```toml
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[dependencies]
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cortex-m = "<Compatible Version>"
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cortex-m-rt = "<Compatible Version>"
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panic-halt = "<Compatible Version>"
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embedded-hal = "<Compatible Version>"
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[dependencies.va416xx-hal]
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version = "<Most Recent Version>"
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features = ["va41630"]
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```
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6. Build the application with `cargo build`
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7. Flashing the board might work differently for different boards and there is usually
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more than one way. You can find example instructions in primary README.
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