基于CAN总线智能节点通信接口的设计  

The design of intelligent interface based on CAN

作　　者：刘胜永[1] 周功业[2] 蔡启仲[1] 

机构地区：[1]广西工学院电控系,广西柳州545006 [2]华中科技大学计算机学院,湖北武汉430074

出　　处：《广西工学院学报》2006年第3期64-67,共4页Journal of Guangxi University of Technology

基　　金：广西自然科学基金(桂科自0481018)

摘　　要：介绍CAN总线的通信协议和CAN控制器SJA 1000,提出以单片机P 89C 52X 2BN和CAN控制器SJA 1000为核心,组成CAN总线智能节点的通信接口设计方法,详细介绍了设计的硬件电路原理图和控制器SJA 1000的初始化、发送和接收模块程序的设计方法。设计内容较好地解决了智能节点的通信要求。This paper introduces the CAN communication protocol and operating principle of CAN controller SJA1000 and puts forward a design scheme of communication interface to CAN intelligent node which use the SCM P89C52X2BN and CAN controller SJA1000 as its core. And then the circuit diagram and the program of initialization, transmit and receive are described in detail. This design can easily meet the demand of CAN intelligent node.

关 键 词：CAN总线 P89C52X2BN SJA1000 PCA82C250 

分 类 号：TP273.5[自动化与计算机技术—检测技术与自动化装置]