bxCAN peripheral driver

This crate implements a driver for the bxCAN peripheral found in many low- to middle-end STM32 microcontrollers.

Please refer to the changelog to see what changed in the last releases.

Usage

Add an entry to your Cargo.toml:

[dependencies]
bxcan = "0.8.0"

Check the API Documentation for how to use the crate's functionality.

Rust version support

This crate supports at least the 3 latest stable Rust releases. Bumping the minimum supported Rust version (MSRV) is not considered a breaking change as long as these 3 versions are still supported.

lib.rs:

Driver for the STM32 bxCAN peripheral.

This crate provides a reusable driver for the bxCAN peripheral found in many low- to middle-end STM32 microcontrollers. HALs for compatible chips can reexport this crate and implement its traits to easily expose a featureful CAN driver.

Features

• Supports both single- and dual-peripheral configurations (where one bxCAN instance manages the filters of a secondary instance).
• Handles standard and extended frames, and data and remote frames.
• Support for interrupts emitted by the bxCAN peripheral.
• Transmission respects CAN IDs and protects against priority inversion (a lower-priority frame may be dequeued when enqueueing a higher-priority one).
• Implements the embedded-hal traits for interoperability.
• Support for both RX FIFOs (as [Rx0] and [Rx1]).

Limitations

• Support for querying error states and handling error interrupts is incomplete.

Cargo Features

[^1]: The specific version of defmt is unspecified and may be updated in a patch release.