《基于单片机控制的电子密码锁设计》.doc

目 录 第一章 绪论..............................................................................................................2 第二章 单片机概述 2.1单片机的分类........................................................................................................3 2.2单片机的产生和发展........................................................................................3 2.3单片机的应用........................................................................................................4 2.4单片机生产厂家....................................................................................................5 2.5 AT89S51的芯片概述.........................................................................................5 第三章 系统硬件软件设计 3.1原理方框..................................................................................................................7 3.2功能介绍..................................................................................................................7 3.3开锁机构..................................................................................................................9 3.4按键电路..................................................................................................................9 3.5显示电路设计......................................................................................................10 3.6 时间电路设计.....................................................................................................11 3.7电源电路设计.......................................................................................................12 3.8 密码输入设计................................................................................................13 第四章 设计总结.......................................................................................................14 第五章 附件 5.1原程序清单（仅主程序）.....................................................................15 5.2原理图....................................................................................................................21 5.3 PCB图3D仿真效果图.......