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1、题目（数字时钟设计）学校：中山市技师学院系 别：电子应用系专业名称：电子技术应用学生姓名：谢志安.林家俊.梁培坚组别：基础组指导教师姓名、职称：黄江(教师)完成日期:2011年6月6日数字时钟设计摘要随着电子技术的发展，在诸如计时、控制等领域，设计出应用具有时间设置（小时和分钟），闹钟时间设置，闹钟开、关功能的多功能数字钟具有十分重要的意义。本次设计以单片计算机即单片微型计算机STC89C55芯片为主控核心，它体积小，成本低，功能强，广泛应用于智能产品和工业自动化上。加上触摸屏系统还有必要的外围电路，设计了一个多功能的电子时钟和创新的应用，它由9V直流供电。硬件
2、方面，除了CPU外，使用OCMJ15X20D触摸液晶来进行显示，由DS1302产生时钟信号，在文章的最后，给出了数字钟的源程序、该系统软、硬件设计。关键词:单片机,触摸屏液晶，时钟芯片Digitalclockdesign20PicktoWiththedevelopmentofelectronictechnology,suchastiming,controlintheapplicationfields,designwithtimeSettings(hoursandminutes),alarmtimeSettings,alarmclockopeningorclosingthe
3、functionofmulti-functiondigitalclockhastheextremelyvitalsignificance.ThisdesignwithsinglechipcomputeristhesinglechipcomputercontrolSTC89C55chipsforcore,itssmallsize,lowcost,thefunctionisstrong,widelyusedinintelligentproductandindustrialautomation.Plusatouch-screensystemandthenecessaryperi
4、pheralcircuit,designamulti-functionelectronicclockandinnovativeapplications,itconsistsof9Vdcpowersupply.Hardware,besidesCPU,theuseofOCMJ15X20DtouchLCDdisplay,toproducetheclocksignal,byDS1302attheendofthearticle,givesadigitalclockthesourceprogramandthesystemhardwareandsoftwaredesign.Keywor
5、ds:microcontroller,touchscreenLCD,clockchip目录1方案论证······························································31.1单片机芯片的选择方案和论证······································31.2显示模块选择方案和论证··········································31.3时钟芯片的选择方案和论证········································41.4电路设计最
6、终方案决定············································52系统硬件设计与实现···················································52.1电路设计框图····················································52.2系统硬件概述20····················································52.3主要单元电路的设计·······································
7、·······62.3.1单片机主控制模块的设计·····································62.3.2时钟电路模块的设计·········································62.3.3触摸显示模块设计···········································72.3.4电路原理及说明·············································83系统的软件设计·························
