Can总线通信研究与硬件设计本科毕业论文设计.doc

北京邮电大学毕业设计PAGE\*MERGEFORMATii北京邮电大学毕业设计PAGE\*MERGEFORMATiCan总线通信研究与硬件设计摘要CAN总线是控制器局域网总线(ControllerAreaNetwork)的简称。属于现场总线的范畴，是一种有效支持分布式控制或实时控制的串行通信网络。CAN总线是一种多主方式的串行通讯总线，是国际上应用最广泛的现场总线之一，现已被应用到各个自动化控制系统中，从高速的网络到低价位的多路接线都可以使用CAN总线。CAN总线是一种全双工通信的串行通信网络，属于现场总线的一种，它的数据通信功能强大，能够有效的支持分布式控制或实时控制系统。相比与其它现场总线，CAN总线具有通信快、效率高、易实现、可靠性高等优势，现在已经在很多领域中都得到了应用。本文重点就基于单片机的CAN总线通信设计的实现进行介绍,通过CAN控制器以及CAN收发器把串口发送来的数据转换成CAN通信的数据，然后又把数据转换成串口通信数据回发给计算机，实现数据的自发自收。关键词CAN总线；通信；现场总线CANbuscommunicationresearchandhardwaredesignAbstractCANbusistheControllerLANbus(ControllerAreaNetwork).Belongstothecategoryofthefieldbus,andisaneffectivesupportdistributedcontrolorreal-timecontrolofserialcommunicationnetwork.CANbusisamainwayofserialcommunicationbus,isoneofthemostwidelyusedfieldbusintheworld,hasnowbeenappliedtovariousautomationcontrolsystem,fromthenetworktothelowpriceofmultiplexwiringCANbusCANbeused.CANbusisafull-duplexcommunicationserialcommunicationnetwork,belongstoakindoffieldbus,ithaspowerfuldatacommunicationfunction,CANeffectivelysupportdistributedcontrolorreal-timecontrolsystem.Comparedwithotherfieldbus,CANbuscommunicationisfast,highefficiency,easyrealizeandhighreliabilityadvantages,nowhasbeenappliedinmanyfields.Thispaperisbasedonsinglechipmicrocomputer,introducestheimplementationoftheCANbuscommunicationdesignthroughtheCANcontrollerandCANtransceivertoaserialporttosenddataintotheCANcommunicationdata,andthensenddataintotheserialcommunicationsdatabacktothecomputer,realizingdataofspontaneous.KeywordsCANbus;Communication;ThefieldbusPAGE\*MERGEFORMAT41目录TOC\o"1-4"\h\z\uHYPERLINK\l"_Toc390358540"摘要PAGEREF_Toc390358540\hiHYPERLINK\l"_Toc390358541"AbstractPAGEREF_Toc390358541\hiiHYPERLINK\l"_Toc390358542"第一章绪论PAGEREF_Toc390358542\h1HYPERLINK\l"_Toc390358543"一、课题背景PAGEREF_Toc390358543\h1HYPERLINK\l"_Toc390358544"二、选题目的PAGEREF_Toc390358544\h1HYPERLINK\l"_Toc390358545"三、选题意义PAGEREF_Toc390358545\h1HYPERLINK\l"_Toc390358546"第二章单片机简介PAGEREF_Toc390358546\h1H