基于SJA1000的CAN总线双机通讯技术的研究  

Study on CAN BUS Communication Technology between Two MCU Based on SJA1000

作　　者：郭慧玲[1] 刘羽[1] 魏文[1] 

机构地区：[1]桂林工学院

出　　处：《仪表技术与传感器》2008年第9期46-49,共4页Instrument Technique and Sensor

基　　金：广西自然科学基金资助项目(桂科基0339070)

摘　　要：介绍了CAN总线的发展趋势以及通讯控制器SJA1000的系统结构,针对双机通讯的特点,以通讯控制器SJA1000为核心设计了双机通讯的硬件电路,详细分析了通讯控制器SJA1000的初始化,数据发送和数据接收的工作机理,给出了硬件连接方式并编写了通讯程序,最后对抗干扰技术进行了探索,双机通讯系统获得了较好的可靠性和稳定性。This paper introduced the development trend of the CAN bus and the system structure of communication controller SJA1000. Aiming at the characteristics of two MCU communication, it designed its communication hardware circuit based on communication controller SJA1000. This paper also described the principle of the communication controller SJA1000 initialization,data transmission and data reception in detail. It compiled communication program. Finally it explored the anti-jamming technology. The two MCU communication system acquires better reliability and stability.

关 键 词：CAN总线 SJA1000 双机通讯 

分 类 号：TP216[自动化与计算机技术—检测技术与自动化装置]