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1、《单片机技术》课程设计说明书数字式秒表系、部:电气与信息工程学院学生姓名:谭国良指导教师:王韧职称副教授专业:电子信息工程班级:电子1002班完成时间:2012年12月22日摘要文中设计了一种以单片机为控制核心的数字秒表。该数字秒表采用C语言开发,通过数码管显示计时结果。对系统硬件电路和软件进行了设计,以Proteus和Keil软件为开发平台,对数字秒表进行了仿真。仿真结果表明该数字秒表精度高、稳定性强。当今,计算机技术带来了科研和生产重大飞跃,微型计算机的应用已渗透到生产、生活的各个方面。单片微型计算机具有体积小、价格低、功能强的特点,随着性能不断提高,其适
2、用范围愈来愈宽,在计算机应用领域占有重要的地位。秒表应用于我们生活、工作、运动等需要计时的方面。秒表的数字化给人们生产生活带来了极大的方便,而且大大的扩展了秒表原先的功能。它由刚开始的机械式秒表发展到今天所常用的数字秒表。秒表的计时精度越来越高,功能越来越多,构造也日益复杂。本文结合单片计算机,实现了一种基于AT89C52单片机的数字秒表的设计,并且利用Proteus和Keil软件实现了仿真。关键词:数字式秒表;单片机;仿真1ABSTRACTDesignedamicrocontrollerasthecorecontroldigitalstopwatch.The
3、digitalstopwatchusingClanguagedevelopment,digitaldisplaytimingresults.Thesystemhardwareandsoftwaredesign,ProteusandKeilsoftwaredevelopmentplatform,digitalstopwatchsimulation.Thesimulationresultsshowthatthedigitalstopwatchhighprecisionandstability.Today,computertechnologyhasbroughtma
4、jorleapinscientificresearchandproduction,microcomputerapplicationshavepenetratedintotheproduction,andallaspectsoflife.Single-chipmicrocomputerhasasmallsize,lowprice,strongfeatures,withimprovingperformance,itsscopeofincreasingwidth,occupiesanimportantpositioninthefieldofcomputerappli
5、cations.Thestopwatchusedinthetimewelive,work,sports.Thestopwatchdigitizationhasbroughtgreatconveniencetothepeople'sproductionandliving,andgreatlyexpandedtheoriginalstopwatchfunction.Developmentbythebeginningofmechanicalstopwatchdigitalstopwatchtothecommonlyusedtoday.Thethestopwatcht
6、imingaccuracyishigherandhigher,moreandmorepowerful,increasinglycomplexstructure.Inthispaper,asingle-chipcomputer,adesignbasedonAT89C52digitalstopwatch,andProteusandKeilsoftwaresimulation.Keywords:digitalstopwatch;SCM;simulation1目录1设计课题任务、功能要求说明及总体方案介绍····························11.1
7、设计课题任务···················································11.2功能要求说明···················································11.3设计课题总体方案介绍及工作原理说明·····························12硬件系统的设计······················································32.1硬件系统各模块功能简要介绍···································
8、··32.2电路原理图、PCB图、元器