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1、基于单片机的数字时钟设计与仿真摘要随着电子技术的迅速发展，特别是随大规模集成电路出现，给人类生活带来了根本性的改变。由其是单片机技术的应用产品已经走进了千家万户。电子万年历的出现给人们的生活带来的诸多方便。本文首先描述系统硬件工作原理，并附以系统结构框图加以说明，着重介绍了本系统所应用的各硬件接口技术和各个接口模块的功能及工作过程,其次，详细阐述了程序的各个模块和实现过程。本设计以数字集成电路技术为基础，单片机技术为核心。本文编写的主导思想是软硬件相结合，以硬件为基础，来进行各功能模块的编写。本系统以单片机的C语言进行软件设计，增加了程序的可读性和可移植性
2、,为了便于扩展和更改，软件的设计采用模块化结构，使程序设计的逻辑关系更加简洁明了。系统通过点阵式液晶为载体显示数据，所以具有人性化的操作和美观的页面效果。可以显示年月日、星期、温度等关键词单片机;万年历;DS1302;LCM1602;DS18B20Basedonmcudigitalclockdesignandsimulation..(collegeofInformationScienceandEngineering,JishouUniversity,Jishou,Hunan)AbstractAlongwiththerapiddevelopmentofele
3、ctronictechnology,especiallywithlargescaleintegratedcircuitappear,givemankindlivinghasbroughtthefundamentalchange.Byitsistheapplicationofsingle-chipcomputertechnologyproducthasenteredinnumberablefamilies.Electroniccalendarappeartothelifeofpeoplebringmanyconvenient.Thispaperfirstly
4、describesthesystemhardwareworkingprinciple,eachaccompaniedbyadiagramofthesystemstructureoftheelucidation,introducesthissystembytheapplicationofthehardwareinterfacetechnologyandthefunctionofeachinterfacemoduleandtheworkingprocess,andsecondly,expoundedtheprogrammodulesandrealization
5、process.Thisdesignwithdigitalintegratedcircuittechnologyasthefoundation,microcontrollertechnologyasthecore.Inthispaperthecompilingprincipleiscombiningsoftwarewithhardware,basedonthepreparationofthefunctionalmodules.ThesystemtakesmicrocontrollerClanguagesoftwaredesign,increasedther
6、eadabilityofourprogramsandportability,tofacilitatetheexpansionandchange,thedesignofsoftwaremodularstructure,maketheprogramdesignoflogicalrelationshipmoreconcise.Systemthroughdot-matrixLCDdisplaydataforcarrier,sohasthehumanizedoperateandbeautifulpageeffect.Candisplaythetime,andluna
7、rdates,week,temperature,solarterm,tianganearthlybranchesandthedaysunrisesunsettime,andhasalarmandintelligentcontrolhouseholdappliancesfunction.Keywordsmicrocontroller;calendar;DS1302;LCM1602;DS18B20目录AbstractII目录III引言IV第1章系统电路设计21.1系统总体设计思路21.2设计方案选择21.3功能介绍31.4工作原理3第2章单元电路设计32.1单
8、片机电路设计32.2时钟电路设计62.3温度传感器电路设计：72.
