基于单片机的音乐电子闹钟的设计

学士学位论文系别：计算机科学与技术系学科专业：计算机科学与技术姓名：王小雪运城学院2011年6月音乐电子闹钟的设计系别：计算机科学与技术学科专业：计算机科学与技术姓名：王小雪指导教师：朱铭琳运城学院2011年6月音乐电子闹钟的设计摘要：20世纪末，电子技术获得了飞速的发展，在其推动下，现代电子产品几乎渗透了社会的各个领域，在以AT89S51单片机为代表的电子技术有力地推动了社会生产力的发展和社会信息化程度的提高，同时也使现代电子产品性能进一步提高，产品更新换代的节奏也越来越快。本课题基于单片机完成了音乐电子闹钟的设计与实现，通过软、硬件结合实现了设定时间、按时闹铃、数字显示等功能。硬件部分是通过AT89S51及KD9300音乐芯片相结合实现音乐电子闹钟的基本框架。软件设计利用C51单片机语言完成了时间显示、走时计数、判断时间及按时响铃等功能。本电子闹钟系统结构简单、成本低，具有比较好的市场前景。关键词：单片机闹钟设计DesignofelectronicmusicalarmclockAbstract:Attheendof20thcentury,electronictechnologygainedrapiddevelopment,Initsdriven,modernelectronicproducts,almostpermeatedeveryareaofsociety,Inat89s51monolithicintegratedcircuitsofthetechnologytoeffectivelypromotethedevelopmentofthesocialproductiveforcesandsocialinformationservicelevelofincrease,alsomakesthemodernelectronicperformance,productbeatfasterandfaster.Thissubjectisbasedonsinglechipmicrocomputertorealizethedesignandimplementationofthemusicelectronicalarmclockwhichimplementthefunctionsofthesettimewithtime,alarm,digitaldisplayetc.HardwarepartuseAT89S51andKD9300musicchipbycombiningmusicelectronicalarmclocktorealizethebasicframework.ThesoftwaredesignuseC51languagetocompletethefunctionsoftimedisplay,timecount,timedecisionandrangthebellontimeetc.Theelectronicalarmsystemfeaturessimplestructure,lowcostandwillhaveaquitegoodmarketprospect.Keywords:Monolithicintegratedcircuitalarmclockdesign1目录前言...................................................................................................................1第一章绪论................................................................................................21.1概述..............................................................................................................21.1.1音乐电子闹钟发展趋势.................................................................21.1.2本课题研究的主要内容.................................................................21.2音乐电子闹钟简介......................................................................................31.2.1开发的目的和意义.........................................................................31.2.2音乐电子闹钟的优点.....................................................................41.2.3音乐电子闹钟的用途.....................................................................41.2.4音乐电子闹钟的特点.....................................................................4第二章AT89S51单片机基础知识简介.......................................................52.1单片机的特点及应用..................................................................................52.1.1单片机的特点.................................................................................52.1.2单片机的应用.................................................................................52.2AT89S51芯片基本工作原理及其应用.....................................................62.2.1AT89S51简介.................................................................................62.2.2引脚介绍.........................................................................................62.2.3电源.................................................................................................92.2.4存储器.............................................................................................92.2.5应用...............................................................................................10第三章系统方案设计.....................................................................................113.1系统功能描述............................................................................................113.2系统设计思路与步骤................................................................................11第四章系统设计..............................................................................................124.1系统硬件设计............................................................................................124.1.1秒灯电路.......................................................................................124.1.2按键电路.......................................................................................124.1.3复位电路.......................................................................................144.1.4显示电路.......................................................................................144.1.5发音部分.......................................................................................154.1.6晶振电路.......................................................................................1624.1.7电源电路.......................................................................................164.2系统软件设计............................................................................................164.2.1软件设计.......................................................................................174.2.2系统软件部分总体设计...............................................................18第五章系统调试和性能分析.......................................................................205.1系统调试方法............................................................................................205.1.1输入按键调试...............................................................................205.1.2显示电路调试.............