多路UART总线与CAN总线通讯系统设计  

Design for communication system of multi-channel UART bus and CAN bus

作　　者：张磊[1] 汪健[1] 赵忠惠[1] 王少轩[1] 陈亚宁[1] 

机构地区：[1]中国兵器工业集团第214研究所,江苏苏州215163

出　　处：《现代电子技术》2012年第14期62-64,共3页Modern Electronics Technique

摘　　要：主要利用TI公司的多路异步收发器TL16C554和PHILIPS公司的SJA1000设计一个多路总线协议转换通讯系统。为了实现4路UART总线与CAN总线之间的相互转换过程,采用微控制器AT89S51来控制通讯数据转换,通过硬件电路实验和软件调试算法,得到了4路串行总线与CAN总线之间的相互透明转换过程。该电路系统大大方便了具有UART接口的设备进行远距离、多节点传输,增强了系统的通讯可靠性。A multi-channel bus protocol conversion communication system was designed by using the multi-channel asyn- chronous transceiver TL16C554 of TI and SJA1000 of Philips. In order to achieve the interconversion between four-channel UART bus and CAN bus, the microcontroller AT89S51 is adopted to control the communication data conversion. The process of interconversion between four-channel serial bus and CAN bus was acquired through hardware circuit experiment and soft- ware debugging method. It is convenient for the circuit system to carry out long-range multi-node transmission of the equip- ments with UART interface. It enhances the reliability of communication systems.

关 键 词：UART CAN 总线协议 协议转换 

分 类 号：TN914.334[电子电信—通信与信息系统]