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1、毕业设计(论文)基于单片机数字时钟的设计基于单片机数字时钟的设计摘要:本文介绍了多功能数字时钟的系统设计。系统具有时间设置及显示、闹钟等功能。系统以AT89S52为核心,主要进行基于AT89S52低功耗MCU的字符型数字时钟及其系统的研究。系统带有液晶显示器,配合按键提供友好的用户界面,操作简单,该数字时钟能长期、连续、可靠、稳定的工作;同时还具有体积小、功耗低等特点,便于携带,使用方便。系统软件设计包括单片机编程。单片机软件编程主要实现按键、液晶显示、时钟、计时、闹钟等模块功能。关键词:数字时钟;单片
2、机;液晶显示器Digitalclockbasedonsingle-chipmicrocomputer’sdesignAbstract:Thisarticleintroducedthemulti-purposedigitalclocksystemdesign.Thesystemhasfunctionandsoontimeestablishmentanddemonstration,alarmclock,.ThesystemtakeAT89S52asacore,mainlycarriesonbasedonAT
3、89S52thelowpowerlossMCUcharacternumeralclockanditsthesystemresearch..Thesystemhastheliquid-crystaldisplay,coordinatesthepressedkeytoprovidethefriendlyusercontactsurface,theoperationsimple,thisdigitalclockcanlong-term,becontinual,reliably,thestablework;Si
4、multaneouslyalsohasthevolumeslightly,thepowerlossislowandsoonthecharacteristic,isadvantageousforcarries,easytooperate.Systemsoftwaredesignincludingmonolithicintegratedcircuitprogramming.Themonolithicintegratedcircuitsoftwareprogrammingmainlyrealizesmodul
5、efunctionandsoonthepressedkey,liquidcrystaldisplay,clock,time,alarmclock.Keywords:DigitalClock;Single-ChipMicrocomputer;LCDI目录1引言....................................................................................................................11.1课程设计要
6、求.............................................................................................11.2课程设计目的............................................................................................22单片机发展历史.................................................
7、...............................................32.1三大阶段.....................................................................................................32.2单片机的发展趋势..................................................................................33单片
8、机的应用....................................................................................................63.1单片机的应用分类.....................................................................................64数字时钟的构成............