automotive_diag

This crate provides low-level no_std structs and enums of the Unified Diagnostic Services (ISO-14229-1), KWP2000 (ISO-142330) and OBD-II (ISO-9141) specifications for the road vehicles in Rust.

Not everything is implemented yet, but the goal is to provide a full set of enums and structs to handle the most common diagnostic commands and responses. If you need a specific command or response, please open an issue or better yet, a pull request.

Usage

All values are presented as Rust enum, and can be converted to/from their underlying numeric values using the From<T> and TryFrom<u8> traits. Most enums also have a corresponding ...Byte enums as ByteWrapper<T> to handle the non-standard Extended(u8) values in addition to the defined Standand(T) ones.

use automotive_diag::ByteWrapper::{Extended, Standard};
use automotive_diag::uds::UdsCommand::{DiagnosticSessionControl, ECUReset};
use automotive_diag::uds::UdsCommandByte;

/// Handle a single command byte on the ECU side
fn handle_cmd_byte(cmd: u8) {
  match UdsCommandByte::from(cmd) {
    Standard(DiagnosticSessionControl) => {
      // handle_diag_session()
    }
    Standard(ECUReset) => {
      // handle_ecu_reset()
    }
    Extended(0x42) => {
      // handle_custom_cmd_42()
    }
    _ => {
      // handle all other commands
    }
  }
}

Development

• This project is easier to develop with just, a modern alternative to make. Install it with cargo install just.
• To get a list of available commands, run just.
• To run tests, use just test.
• On git push, it will run a few validations, including cargo fmt, cargo clippy, and cargo test. Use git push --no-verify to skip these checks.

Credits

The code was forked from the amazing rnd-ash/ecu_diagnostics project. The code was forked from the last MIT-versioned code before the MIT to GPL license migration. Initially, this code was developed as a deprecated auto_uds 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.

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.