mcp2003a

Embedded Rust Microchip MCP2003A LIN transceiver driver with embedded-hal traits for no-std environments.

Uses embedded-hal digital traits for GPIO and embedded-hal-nb Serial traits for UART.

• embedded-hal = "1.0.0" - Major breaking changes versus 0.2.x implementations.
• embedded-hal-nb = "1.0.0" - Additional non-blocking traits using nb crate underneath.

⚠️ WORK IN PROGRESS

Full Documentation: https://docs.rs/mcp2003a/latest/mcp2003a/

References

• MCP2003A Product Page
• MCP2003A Datasheet

Usage

Add the crate to your Cargo.toml:

cargo add mcp2003a

Configure like so:

let lin_bus_config = LinBusConfig {
    speed: LinBusSpeed::Baud19200,
    break_duration: LinBreakDuration::Minimum13Bits,
    wakeup_duration: LinWakeupDuration::Minimum250Microseconds,
    read_device_response_timeout: LinReadDeviceResponseTimeout::DelayMilliseconds(2),
    inter_frame_space: LinInterFrameSpace::DelayMilliseconds(1),
};

let mut mcp2003a = Mcp2003a::new(
    uart2_driver,
    break_pin_driver,
    delay,
    lin_bus_config
);

mcp2003a.send_wakeup();

mcp2003a.send_frame(0x01, &[0x02, 0x03], 0x05).unwrap();

let mut read_buffer = [0u8; 11];
let len = mcp2003a.read_frame(0xC1, &mut read_buffer).unwrap();

Full Examples

(More coming soon)

• ESP-32 via ESP-RS - Example using the MCP2003A with an ESP-32 microcontroller using the ESP-RS HAL.