J2534

Low-level J2534 PassThru support for rust.

J2534 Introduction

SAE J2534 PassThru defines a standard library interface for communicating with vehicles. All automakers in the US are required to provide J2534-compatible service software. J2534 provides access to the communication layer required for accessing vehicle diagnostics services as well as downloading and reflashing control modules.

Usage

The J2534 specification requires PassThru libraries to be compiled for 32 bit, so any program using this crate must be compiled as 32 bit.

Example

use j2534::{Interface, PassThruMsg, Protocol, ConnectFlags, RxStatus, TxFlags};

fn main() -> j2534::Result<()> {
    // Open the library and connect to a device
    let interface = Interface::new("C:\\device.dll")?;
    let device = interface.open_any()?;
    
    // Create a CAN channel
    let channel = device
        .connect(Protocol::CAN, ConnectFlags::NONE, 500000)
        .unwrap();

    let message = PassThruMsg::new(
        Protocol::CAN,
        RxStatus::NONE, // rx_status
        TxFlags::NONE, // tx_flags
        0, // timestamp
        0, // extra_data_index
        &[
            0_u8, 0, 0, 8, // Arbitration ID of 0x8
            0, 1, 2, 3,
        ], // Message
    );

    channel.write_msgs(&[message], 1000)
}