目录
摘要 ....................................................I
ABSTRACT ...............................................II
目录 ..................................................III
1 绪论 ..................................................1
1.1 背景知识 ..........................................1
1.2 设计内容 ..........................................1
1.3 设计任务和要求 ....................................1
1.4 设计意义 ..........................................2
2 系统总体方案及硬件设计 ................................3
2.1 系统总体方案设计 ..................................3
2.2 硬件电路系统设计 ..................................4
2.2.1 单片机 AT89S52 简介 ...........................4
2.2.2 键盘 ........................................10
2.2.3 时钟电路模块 ................................11
2.2.4 复位电路模块 ................................11
2.2.5 显示模块 ....................................12
2.2.6 报警模块 ....................................13
2.3 总硬件电路设计 ...................................14
2.4 本章小结 .........................................14
3 软件设计 .............................................15
3.1 软件总体设计方案 .................................15
3.2 程序设计 .........................................16
2.3 本章小结 .........................................17
4 PROTEUS 仿真 ..........................................18
4.1 PROTEUS 简介 .....................................18
4.2 仿真过程 .........................................18
4.3 本章小结 .........................................22
结论 ...................................................22
参考文献 ...............................................23
致谢 ...................................................24
附录一 .................................................25
附录二 .................................................36
