基于ATmega128的CAN-RS485转换器  

CAN-RS485 Protocol Transformer Based on ATmega128

作　　者：王斐斐[1] 杜亚江[1] 贾云光[1] 

机构地区：[1]兰州交通大学机电技术研究所,甘肃兰州730070

出　　处：《兰州交通大学学报》2007年第3期119-121,共3页Journal of Lanzhou Jiaotong University

摘　　要：针对工业色谱仪测控系统中的数据采集与控制,以嵌入式单片机ATmega128为MCU实现CAN总线与上位机的通信.介绍了RS485的接口芯片SN75LBC184P,CAN总线、RS485通信协议,重点介绍了CAN-RS485协议转换器的硬件电路设计与软件设计的方法.In view of the industry chromatograph meter observation and control system in data acquisition and the control,a new type of single chip Atmeag128 is adopted in the design of communication between super-computer and CAN bus. The chip SN75LBC184P,CAN bus,RS485 communication protocol and emphatically the design and realization of the CAN-RS485 protocol transformer are presented.

关 键 词：ATMEGA128 CAN总线 RS485协议 SN75LBC184P 

分 类 号：TP368.1[自动化与计算机技术—计算机系统结构]