基于GSM控制的LED显示控制系统---硬件设计毕业论文.doc

届本科毕业论文（设计）论文题目：基于GSM控制的LED显示控制系统设计-硬件设计学生姓名：所在院系：机电学院所学专业：应用电子技术教育导师姓名：完成时间：1摘要文中探讨了采用GSM短消息作为数据传输媒介实现远程控制LED显示屏的可行性，给出了采用TC35i模块、STC89C516RD+单片机和GT23L32S4W字库芯片构成的远程控制LED显示屏的设计方案，并详细介绍了远程控制LED显示屏的硬件组成和软件的工作流程。文章重点阐述了STC89C516RD+单片机和TC35i模块的接口、TC35i的特点和主要功能、AT指令的应用、短信PDU编解码在单片机上的实现，字库芯片的应用，LED显示屏与单片机通信接口等。该系统单片机STC89C516RD+通过标准串口经电平变换与TC35i模块相连，完成对TC35i模块的初始化和短消息的数据收发功能，同时使用I/O口设计下位机HUB08接口与LED显示屏相连，完成单片机与LED点阵显示屏的信息传递。关键词：TC35iModem，STC89C516RD+，AT指令，PDU编解码，LED显示屏，HUB08接口，GT23L32S4WTheLEDdisplayscreenHardwaredesignbasedonGSMmodemAbstractInthearticlediscussedhasusedtheGSMshortnewstorealizetheremotecontrolLEDdisplaymonitorsfeasibilityasthedatatransmissionmedium,gavehasusedtheTC35imodule,theSTC89C516RD+singlechipandGT23L32S4WthefontschipconstitutionremotecontrolLEDdisplaymonitorsdesignproposal,andintroducedtheremotecontrolLEDdisplaymonitorshardwarecompositionandsoftwaresworkflowindetail.ThearticleelaboratedwithemphasistheSTC89C516RD+singlechipandtheTC35imodulesconnection,theTC35icharacteristicandthemajorfunction,ATinstructionsapplication,shortnotePDUarrangesthedecodingonmonolithicintegratedcircuitsrealization,thefontschipapplication,theLEDdisplaymonitorandthemonolithicintegratedcircuitcorrespondenceconnectionandsoon.ThissystemmonolithicintegratedcircuitSTC89C516RD+isconnectedthroughthestandardserialportaftertheleveltransformationandtheTC35imodule,completestotheTC35imoduleinitializationandtheshortnewsdatareceivinganddispatchingfunction,simultaneouslyusesI/OthemouthdesignlowerpositionmachineHUB08connectionandtheLEDdisplaymonitorisconnected,completesthemonolithicintegratedcircuitandtheLEDlatticedisplaymonitorsinformationtransmission.keyword:TC35itheModem,STC89C516RD+,ATinstruction,PDUarrangesthedecoding,theLEDdisplaymonitor,theHUB08connection,GT23L32S4W目录1绪论.12设计要求.13方案论证.13.1整体方案选择.13.2GSM模块的选择.23.3汉字字库选择.33.4LED显示屏控制方法选择.34系统总体框图.45单片机外围器件的设计.55.1电源电路.55.2单片机主控制电路.65.2.1SoC型单片机STC89C516RD+.65.2.2单片机STC89C516RD+I/O接口电路.75.3短信模块.75.3.1TC35i的控制简介.85.3.2AT指令的介绍.95.3.3TC35i的连机方法.95.3.4单片机与TC35i的硬件接口.105.4实时时钟电路.125.5存储电路.125.6字库电路.135.6.1字库电路芯