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1、【精品】基于单片机的多功能电子钟毕业设计论文47761477上传说明:本论文仅供大家学习和参考用***科技大学本科生毕业设计题目:基于单片机的多功能电子钟的设计与实现―硬件设计学生姓名:学号:专业:班级:指导教师:多功能电子钟的设计与实现―硬件部分摘要关键词:;;;TheDesignwithInvestigationoftheMulti-functionElectronClock-TheDesignoftheHardwareAbstractTheelectronicclockmainlyusesthe
2、electronictechnologymaketheclockcomputerization,thedigitization,withtheclockprecision,smallsize,friendlyinterface,scalableperformanceandothercharacteristics,waswidelyusedinlifeandwork.Measuringtemperature,inlife,industryandagriculturalproduction,soelect
3、ronicclockneedmulti-function.Thedesignforthemainimplementingaclock/calendarcanbedisplayednormal,collectingpersonalambienttemperature,withthetimingalarmofthemulti-functionelectronicclock.Comparingandanalysisingthedevelopmenttechnologyoftheelectronclock,t
4、hedesigndeterminestousetheMCUtechnologytorealizethemulti-functionalelectronclock.ThisdesignapplicationAT89C51asacorechips,7LEDdigitaldisplaying,usingDS1302real-timeclockchiptocompletethebasicfunctionoftheclock/calendar.AtthesametimethedesignuseofDS18B20
5、temperaturesensorstocollecttheenvironmentaltemperature.Themethodhastheadvantageofbeingsimplecircuit,reliableperformance,goodreal-time,highprecisionofthetimeandtemperature,simplyoperation,easyprogramming.Theelectronicclockcanbeappliedtothegenerallivingan
6、dworking,canalsobemodifiedtoimproveperformance,addnewfunctions,andbringsmoreconvenienttopeople’slifeandwork.Keywords:Electronicclock;Multi-function;AT89C51;DS1302;Temperaturepickup目录摘要IAbstractII第一章引言11.1多功能电子时钟研究的背景和意义11.2电子时钟的功能2第二章电子时钟设计方案分析32.1FPGA设
7、计方案32.2NE555时基电路设计方案32.3单片机设计方案4第三章基于单片机的电子时钟硬件设计63.1主要IC芯片选择63.1.1微处理器选择63.1.2.1常用时钟日历芯片比较73.1.2.2DS1302简介83.1.2.3DS1302引脚说明83.1.2.4DS1302的控制字和读写时序说明93.2.1.5DS1302的片内寄存器113.1.2环境温度传感器选择133.1.3.1常用温度传感器比较133.1.3.2DS18B20简介143.1.3.2DS18B20内部结构153.2电子时钟硬件
8、电路设计163.2.1时钟电路设计173.2.2环境温度采集电路设计183.2.3显示电路193.2.4按键电路设计203.2.5闹铃电路设计223.2.6复位电路设计23第四章电子时钟软件设计254.1主程序设计254.2子程序设计264.2.1实时时钟日历子程序设计264.2.2环境温度采集子程序设计264.2.3显示子程序设计304.2.4键盘扫描子程序304.2.5闹铃子程序设计31第五章系统调试355.1硬件调试365.1.1单片机基础电路调试