基于MSP430的CAN总线智能通讯板设计  

Design of CAN Intelligent Communication Board Based on MSP430

作　　者：陈伟[1] 

机构地区：[1]洛阳理工学院电气工程与自动化系,河南洛阳471023

出　　处：《仪表技术与传感器》2010年第7期54-56,共3页Instrument Technique and Sensor

摘　　要：基于MSP430单片机低功耗和双口RAM高速、实时数据交换的特点,文中提出了一种以MSP430单片机为控制核心的CAN智能通讯板设计方案。该智能通讯板主要由2片MSP430单片机和双口RAM构成,通过MSP430读写双口RAM,实现CAN总线与RS-232的数据通讯。同时为了避免双口RAM的读写错误,采用了一种软件仲裁方法,实现了上位机与底层控制器之间的CAN数据的可靠通讯。A CAN intelligent communication board was introduced based on the low-power operation of MSP430 and the high-speed access of dual-port RAM.The communication board consisted of two MSP430 and a dual-port RAM,and implemented the data exchange between CAN and RS-232 by reading and writing the dual-port RAM.To avoid the read-write error,a software arbitral strategy for the read-write control of dual-port RAM was proposed,and it realized the reliable data communication between upper computer and field controllers using CAN bus.

关 键 词：MSP430 双口RAM CAN总线 网络通讯 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]