README.md

go-cantact

A package for communicating on Controller Area Network buses using the CANtact hardawre.

Details

This package makes use of the serial library for providing access to CANtact's serial port. It provides functions for sending and receiving frames in the correct format for the device.

Usage

package main

import (
	"log"
	"os"
	"github.com/linklayer/go-cantact"
)

func main() {
	d, err := cantact.NewDevice(os.Args[1])
	if err != nil {
		log.Fatal(err)
	}
	
	// set bitrate mode to 6, 500 kbps
	d.SetBitrate(6)

	// open connection to CAN bus
	d.Open()

	// send a frame
	data := []byte{0xDE, 0xAD, 0xBE, 0xEF}
	txFrame := cantact.Frame{ID: 0x123, Dlc: len(data), Data: data}
	d.WriteFrame(txFrame)

	// read a frame (blocking call)
	rxFrame, err := d.ReadFrame()
	if err != nil {
		log.Panic(err)
	}
	log.Println(rxFrame)
}