西华大学课程设计说明书课程设计说明书课程设计名称：微机接口技术课程设计题目：模拟电子密码锁学生姓名：专业：电子信息工程年级：学号：指导教师：日期：2012年2月6日成绩2西华大学课程设计说明书电子密码锁摘要：提出了一个电子密码锁的设计方案，该设计方案通过AT89C52单片机对整个系统进行核心控制，再外加4×4矩阵键盘电路，显示电路，开锁和报警电路，分别对键盘输入，LCD1602显示，开锁灯和报警灯进行整体控制。最后将键盘输入信号送人AT89C52单片机，经过软件的控制，在LCD上显示输出相应的密码，密码的位数为5位。系统能完成锁闭状态显示、密码输入错误超次异常，初始化设置用户密码等基本的密码锁功能。关键词：AT89C52LCD1602电子密码锁4×4矩阵键盘Abstract：Thispaperputsforwardadesignschemeofelectronictricklock,thedesignthroughtheAT89C52singlechipmicrocomputertothewholesystemcorecontrol,againplus4*4matrixkeyboardcircuit,displaycircuit,thelockandalarmcircuitrespectively,thekeyboardinput,LCD1602display,unlockingthelampandalarmlampforoverallcontrol.FinallythekeyboardinputsignalforAT89C52singlechipmicrocomputer,throughsoftwarecontrol,displayedonLCDoutputcorrespondingpassword,thepasswordforthenumberfive.Thesystemthecompletelockdownstatusdisplay,passwordinputerrorTransdimensionalabnormal,initialsettinguserpasswordsandotherpasswordlockfunction.Keywords:AT89C52LCD1602Electronicpasswordlock4×4keyboard32西华大学课程设计说明书目录第1章绪论...................................................................................................................................................11.1电子密码锁的背景..........................................................................................................................11.2单片机的基本介绍..........................................................................................................................11.3keilc51的优势................................................................................................................................1第2章总体设计方案的确定......................................................................................................................22.1电子密码锁设计的要求...............................................................................................................22.2总体方案的选择...........................................................................................................................22.2.1方案的比较.......................................................................................................................22.2.2方案论证确定....................................................................................................................4第3章单元设计模块.................................................................................................................................53.1MCS－51单片机最小系统电路....................................................................................................53.1.1复位电路............................................................................................................................63.1.2时钟电路...........................................................................................................................73.2按键模块..........................................................................................................................................83.3显示模块..............................................
