目录
1.引言.................................................................................................................................................3
2 系统总体方案设计........................................................................................................................4
2.1 系统构成框图......................................................................................................................4
2.2 总体方案..............................................................................................................................5
3.硬件电路设计.................................................................................................................................5
3.1 系统硬件部分组成: ...........................................................................................................5
3.2 设计器件的选择.................................................................................................................6
3.3.SO8AW 介绍.......................................................................................................................6
3.4 显示模块设计.....................................................................................................................9
3.5 报警模块设计....................................................................................................................10
3.6 键盘控制电路...................................................................................................................10
3.7 总硬件电路原理图............................................................................................................12
3-7 总硬件电路原理图...................................................................................................12
4.系统软件设计...............................................................................................................................13
4.1 软件主程序设计................................................................................................................13
4.2 计时部分模块流程...........................................................................................................15
4.3 计分部分模块流程...........................................................................................................15
5. 总结.............................................................................................................................................16
参考文献..........................................................................................................................................17
附录 1 单片机系统原理图.............................................................................................................18
附录 2 源程序.................................................................................................................................19
