车用电控单元系统的CAN总线接口软硬件设计

CAN Bus Hardware and Software Interface Design for In-Vehicle ECU

本文对CAN总线的结构以及在汽车电控单元网络中的应用作了阐述 ,介绍了一种以 51系列单片机为核心的微处理器系统的CAN总线接口电路和通讯软件的设计。

The importance and necessity of on board network in automobile with CAN bus are briefly presented. An implementation of hardware and software interface of CAN bus for MS51 compatible micro processor is given. Its application for engine fault diagnosing system is discussed.