目录
1 前言.............................................................................................................................1
2 系统开发软硬件概述................................................................................................2
2.1 单片机最小系统...............................................................................................2
2.2 Proteus 仿真软件简介...................................................................................3
2.3 Keil 编译及调试软件简介 ............................................................................3
3 设计方案概述.............................................................................................................4
3.1 本课题的设计要求..........................................................................................4
3.2 单片机的选择...............................................................................................4
3.3 本设计的方案简图.........................................................................................5
4 系统硬件设计........................................................................................................6
4.1 最小系统........................................................................................................6
4.2 电源的设计...................................................................................................7
4.3 键盘电路........................................................................................................8
4.4 液晶显示电路.............................................................................................9
4.5 看门狗芯片.................................................................................................10
4.6 PCF8563 日历时钟芯片的使用方法..........................................................11
4.7 声光报警电路.............................................................................................11
4.8 继电器控制电路.........................................................................................12
5 软件设计及仿真................................................................................................13
5.1 软件设计分析.............................................................................................13
5.2 Main 函数流程图 ........................................................................................13
5.3 显示特定数字子程序.................................................................................14
5.4 键盘程序设计.............................................................................................15
5.5 其他子程序.................................................................................................17
5.6 调节时间的仿真.........................................................................................18
5.7 系统设定工作时间到,系统报警.............................................................19
6 总结.....................................................................................................................20