发动机电控系统的CAN总线通信设计与开发

The Design and Development of CAN Bus Communication Module On Engine's Electronic Control System

作为通信速率高达 1Mbps的多主总线式串行数据通信方式 ,CAN总线为发动机电控系统的在线标定、实时监测提供了快速可靠的通信保障 ,同时可方便地与其它车载控制器构成CAN总线通信网络。本文介绍了CAN总线通信接口的基本结构和通信协议 ,以MC6

As one kind of serial communication style at the baudrate of up to 1Mbps, CAN bus provides a reliable and high-speed communication service for the on-board calibration and real time monitoring on engine's electronic control system, and conveniently constructs communication network with the other in-vehicle control units. This paper presents the basic structure and protocol of CAN bus communication interface, and the key points of CAN bus communication's realization using the SAE J1939 protocol with the example of MC68376's on-chip CAN controller.