Controller Area Network (CAN) Protocol Overview

This document provides a comprehensive overview of the Controller Area Network (CAN) protocol, covering its fundamentals, frame structures (data, remote, overload, error), and key features like dominant/recessive signaling and Non-Return-to-Zero (NRZ) encoding. It also details practical applications in automotive, industrial automation, and data measurement, along with comparisons of high-speed CAN, low-speed CAN, and CAN FD, as well as protocols built on CAN like J1939 and CANopen.