塔里木大学信息工程学院《单片机原理与外围电路》课程论文题目：单片机定时闹钟设计姓名：海热古丽·依马木学号：5011110115班级：计算机15-1班摘要：本设计是单片机定时闹钟系统，不仅能实现系统要求的功能，而且还有附加功能，即还能设定和修改当前所显示的时间。本次设计的定时闹钟在硬件方面就采用了AT89C51芯片，用6位LED数码管来进行显示。LED用P0口进行驱动，采用的是动态扫描显示，能够比较准确显示时时—分分—秒秒。通过S1、S2、S3、和S4四个功能按键可以实现对时间的修改和定时，定时时间到喇叭可以发出报警声。在软件方面采用汇编语言编程。整个定时闹钟系统能完成时间的显示，调时和定时闹钟、复位等功能，并经过系统仿真后得到了正确的结果。关键词：单片机、AT89C51、定时闹钟、仿真Abstract：Thisdesignisasingle-chiptimingalarmsystem,cannotonlyrealizethefunctionofsystemrequirements,andthereareadditionalfunctions,whichcansetupandmodifythedisplaytime.TimingalarmclockthisdesignadoptstheAT89C51chiponthehardwareside,with6LEDdigitaltubetodisplay.LEDP0exportdriven,byusingdynamicscanningdisplay,canaccuratelydisplayalways-sub-secondsseconds.ThroughtheS1,S2,S3,andS4fourfunctionkeyscanbeachievedonthetimechangesandtiming,timingtothehorncansendoutalarmsound.Usingassemblylanguageprogramminginthesoftware.Thetimingclocksystemhasfunctionsoftimedisplay,timingandtimingalarmclock,resetandotherfunctions,andthesystemsimulationtoobtaincorrectresults.Keywords:singlechipmicrocomputer,AT89C51,alarmclock,simulatio目录1绪论.............................................................................................................................21.1课题背景及研究意义.....................................................................................21.2国内外现状.....................................................................................................21.3课题的设计目的.............................................................................................21.4课题的主要任务.............................................................................................21.5课题的主要功能.............................................................................................22系统概述.....................................................................................................................32.1方案论证.........................................................................................................32.2系统设计原理.................................................................................................33系统硬件设计.............................................................................................................43.1单片机AT89C51简介.....................................................................................43.2数码管显示电路.............................................................................................63.3时钟电路.........................................................................................................73.4喇叭:SPEAKER.................................................................................................84系统软件设计.............................................................................................................84.1系统软件设计说明.........................................................................................84.2程序调试..........................................................................................................
