基于CAN总线的通信系统的设计与实现

CAN总线是一种多主方式的串行总线。最初CAN总线被应用在汽车上,其目的是连接汽车上各个部件,并使其可以进行自由通信和控制。同时减少原始方法的复杂的布线,实现基于CAN总线协议的局域网通信。CAN总线局域网通信具有以下优点:具有高抗干扰性;具有较高的实时性;它应用简单,项目开发周期短。文中的工作是实现基于CAN总线协议的数据采集通信系统。通过利用CAN总线模块(Basic)实现单片机之间的基于CAN总线协议的通信。

Design and Realization of Communication System Based on CAN Bus

The controller area network(CAN) is a serial communications protocol which efficiently supports distributed real time control.The CAN bus has first been selected as internal communication network of the modern automobile.The object is to link all kinds of parts and to simplify the layout of wire.With the introduction of CAN,realize the local area network,which is less complex than the previous methods.CAN has many virtues as follows:it has good anti-interference ability;it also has the real-time characteristic;it is easy to apply CAN.This thesis realized a data collecting and controlling system based on CAN.With the module(Basic) of CAN,successfully realized the communication among singlechips,which is under the protocol of CAN.