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基于GSM控制的LED显示控制系统---硬件设计毕业论文.doc

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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,theSTC89C516RDsinglechipandGT23L32S4WthefontschipconstitutionremotecontrolLEDdisplaymonitorsdesignproposal,andintroducedtheremotecontrolLEDdisplaymonitorshardwarecompositionandsoftwaresworkflowindetail.ThearticleelaboratedwithemphasistheSTC89C516RDsinglechipandtheTC35imodulesconnection,theTC35icharacteristicandthemajorfunction,ATinstructionsapplication,shortnotePDUarrangesthedecodingonmonolithicintegratedcircuitsrealization,thefontschipapplication,theLEDdisplaymonitorandthemonolithicintegratedcircuitcorrespondenceconnectionandsoon.ThissystemmonolithicintegratedcircuitSTC89C516RDisconnectedthroughthestandardserialportaftertheleveltransformationandtheTC35imodule,completestotheTC35imoduleinitializationandtheshortnewsdatareceivinganddispatchingfunction,simultaneouslyusesI/OthemouthdesignlowerpositionmachineHUB08connectionandtheLEDdisplaymonitorisconnected,completesthemonolithicintegratedcircuitandtheLEDlatticedisplaymonitorsinformationtransmission.keywordTC35itheModem,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STC89C516RDI/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字库电路芯片介绍.....................................................................................135.6.2字库电路......................................................................................................145.7LED点阵显示屏电路........................................................................................165.7.1LED点阵显示屏.........................................................................................165.7.2LED显示屏接口电路.................................................................................165.8看门狗电路........................................................................................................176结束语......................................................................................................................19谢辞..............................................................................................................................20参考文献......................................................................................................................21附图整体电路图........................................................................................................22

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