基于单片机的电子密码锁设计-学位论文.doc
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2023-07-09
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毕业设计论文
基于单片机的电子密码锁设计
目 录
1. 引言.......................................................................................................................................1
1.1 课题背景和意义 .............................................................................................................1
1.2 电子密码锁发展趋势 ......................................................................................................2
2. 总体设计方案.......................................................................................................................2
2.1 电子密码锁设计的具体要求............................................................................................2
2.2 总体设计方案.................................................................................................................3
2.3 系统总体设计原理..........................................................................................................4
3．电子密码锁的硬件设计.......................................................................................................5
3.1 主控芯片 STC89C52..........................................................................................................5
3.2 存储电路........................................................................................................................6
3.3 LCD 显示模块..................................................................................................................7
3.4 单片机最小系统 .............................................................................................................8
3.5 报警电路........................................................................................................................9
3.6 开锁电路........................................................................................................................9
3.7 键盘输入模块 ...............................................................................................................10
4. 电子密码锁的软件设计 .....................................................................................................10
4.1 主程序..........................................................................................................................11
4.2 按键软件设计 ...............................................................................................................11
4.3 密码设置软件设计 ........................................................................................................12
4.4 开锁软件设计 ...............................................................................................................13
5. 调试与实现 .........................................................................................................................14
5.1 软件调试 ......................................................................................................................14
5.2 Proteus 仿真................................................................................................................15
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