基于CAN总线技术的汽车组合仪表系统的研究

摘要

本论文采用CAN总线技术，遵循SAE J1939网络通信协议，以飞思卡尔公司的16位微控制器(MCU)MC9S12XHZ512为中央处理器，设计了CAN通信接口、LCD显示屏、步进电机驱动等模块，通过Code Warrior IDE开发工具软件编程并进行了仿真实验。仿真结果表明，该仪表系统能够实时反映车辆的工况。%This paper using CAN bus technology,follow the SAE J1939 network communication protocol,with freescale company 16-bit microcontrol er (MCU) MC9S12XHZ512 for the central processor,the design of CAN communication interface ,LCD display screen and stepping motor drive circuit module, etc,through the Code Warrior IDE development tools software programming and simulation test. The simulation results show that this system can real-time reflect the operation condition of the vehicle.