基于单片机及DS1302的LED电子钟设计——软件部分摘要现代社会的快节奏生活要求人们对时间的掌握越来越精确，随着计算机在社会领域的渗透和大规模集成电路的发展，单片机的应用正在逐步地深入，电子钟也逐渐取代传统钟表被广泛应用于生活和工作中。电子时钟主要是利用电子技术将时钟电子化、数字化，拥有时间精确、体积小、界面友好、可扩展性能强等特点。本设计以AT89C52芯片作为核心，8位LED数码管显示和DS1302时钟芯片主要组成来实现电子钟的基本功能，并分析了相应软件的设计要点，包括软件设计流程、仿真与调试。关键词电子钟；单片机；DS1302ABSTRACTNowadayspeopleneedmoreaccuratetimetokeepupwiththehighpaceoflife.Withcomputersintheinfiltrationandthedevelopmentoflarge-scaleintegratedcircuits，SCMapplicationissteadilydeepening,whileelectronicclockiswidelyusedinourlifeandworktakingplaceoftraditionalone.theelectronicclockmainlyusestheelectronictechnologytomaketheclockcomputerizedanddigitized,withfeaturesofaccuratetime、smallsize、afriendlyuserinterfaceandstrongexpansibility.ThisdesignmainlyconsistsofthecorechipofAT89S52,8lightemittingdiodesandtheclockchipDS1302toachievethebasicfunctionoftheelectronicclock,andalsoanalysesthekeydesigningofthecorrespondingsoftwareincludingsoftwaredesignflow,emulationanddebuggingKEYWORDSElectronicclock;SingleChipMicrocomputer;DS1302目录1.前言................................................................................................................................12.系统核心芯片介绍............................................................................................................22.1单片机AT89S2简介...............................................................................................22.1.1芯片主要性能................................................................................................22.1.2芯片引脚功能................................................................................................22.2时钟芯片DS1302简介...........................................................................................42.2.1主要功能........................................................................................................42.2.2内部结构及引脚功能....................................................................................52.2.3工作原理........................................................................................................62.2.4控制字节及寄存器........................................................................................62.2.5数据的传送....................................................................................................73.电子钟软件设计................................................................................................................93.1系统结构图及总流程图..........................................................................................93.2主程序模块............................................................................................................103.2.1初始化模块..................................................................................................103.2.2DS1302读写模块........................................................................................113.2.3显示模块......................................................................................................133.2.4蜂鸣模块....................................................................................
