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湖北工业大学商贸学院毕业设计I摘要单片机应用技术飞速发展，纵观我们现在生活的各个领域，从导弹的导航装置，到飞机上各种仪表的控制，从计算机的网络通讯与数据传输，到工业自动化过程的实时控制和数据处理，以及我们生活中广泛使用的各种智能IC卡、电子宠物等，这些都离不开单片机。单片机是集CPU,RAM,ROM,定时，计数和多种接口于一体的微控制器。它体积小，成本低，功能强，广泛应用于智能产业和工业自动化上。本设计着重要描述的就是基于AT89S52的单片机的电子万年历。本文首先描述系统硬件工作原理，随后说明了本系统所应用的各硬件接口技术（既芯片驱动程序）和各个接口模块的功能及工作过程。本设计的主导思想是软硬件相结合来进行各功能模块的编写。电子万年历以硬件C语言为主体进行软件设计，增加了程序的可读性和可移植性。系统通过LCD液晶输出显示数据，可以显示当前时间、公农历日期、星期、温度，并附有以峰鸣器为提示的闹铃功能。关键词：单片机电子万年历公农历接口模块C语言湖北工业大学商贸学院毕业设计IIAbstractMCUrapiddevelopmentofappliedtechnology,wenowliveLookingatthevariousfields,fromthemissile'snavigationdevices,tothevariousinstrumentsontheaircraftcontrol,computernetworkcommunicationsanddatatransmission,industrialautomationtotheprocessofreal-timecontrolanddataProcessing,andweliveintheextensiveuseofthesmartICcards,electronicpets,theseareinseparablefromtheSCM.SCMissetCPU,RAM,ROM,timing,countingononeinterfaceandavarietyofmicrocontrollers.Itssmallsize,lowcost,featurestrong,smartwidelyusedinindustryandindustrialautomation.ThisdesignisgoingtodescribingthecalendarbasedonAT89S52.Systemhardwareofmainbodyisdescribedfirst,Followthefunction,principleofworkandhardwareinterface(thatmeansthechip’sdrives)areintroduced.Thedesign‘smainideasisthatcomposessoftandhardwaretoachievethedesign.ThecalendarisdesignedwithhardwareClanguageastheRealizationtool,whichincreasedprocedurereadabilityandtransplanting.ThesystemshowstheoutputbyLCD1602,whichcandemonstratethecurrenttime,thelunarcalendardate,theweek,thetemperatureandthesystem,canalterpeoplewithasmallsounder.Keywords:MCUElectroniccalendarLunarcalendarInterfacemoduleCLanguage.湖北工业大学商贸学院毕业设计III目录摘要.............................................................................................................................................IABSTRACT..................................................................................................................................II目录..........................................................................................................................................III引言.............................................................................................................................................11系统方案设计...........................................................................................................................21.1单片机芯片的选择方案.......................................................................................................21.2显示模块选择方案...............................................................................................................31.3时钟芯片的选择方案...........................................................................................................31.4温度传感器的选择方案.......................................................................................................41.5电路设计最终方案...............................................................................................................42系统设计说明...........................................................................................................................52.1硬件模块图...........................................................................................................................52.2系统原理...............................................................................................................................52.3系统的软件流程图...............................................................................................................63系统单元模块设计...................................................................................................................73.1主控模块（AT89S52模块）...............................................................................................73.2DS1302时钟模块.................................................................................................................93.2.1DS1302简介...................................................................................................................93.2.2DS1302结构与工作原理.............................................................................................103.2.3控制命令字节与寄存器..............................................................................................113.2.4DS1302电路设计图.....................................................................................................163.3公历与农历、星期转换模块.............................................................................................163.3.1概述..............................................................................................................................163.3.2基本原理......................................................................................................................173.3.3程序流程图.................................................................................................................183.4DS18B20温度模块.............................................................................................................203.4.1概述..........................................................................................................................