目录
1. 概述 ..............................................................................................................................................3
1.1 背景知识介绍..................................................................................................................3
1.2 设计内容..........................................................................................................................3
1.3 计任务和要求.....................................................................................................................4
1.4 设计意义........................................................................................................................4
2.系统总体方案及硬件设计.............................................................................................................5
2.1 系统总体方案设计............................................................................................................5
2.2 硬件电路设计..................................................................................................................6
2.2.1 时钟电路模块.........................................................................................................7
2.2.2 复位电路模块........................................................................................................7
2.2.3 显示模块.................................................................................................................8
2.2.4 报警模块................................................................................................................9
2.2.5 总硬件电路设计...................................................................................................10
3 软件设计......................................................................................................................................11
3.1 软件总体设计方案..........................................................................................................11
3.2 软件设计具体过程..........................................................................................................12
3.2.1 延时模块设计.........................................................................................................13
3.2.2 数码管动态刷新显示程序....................................................................................13
3.2.3 T0 中断程序 ...........................................................................................................15
3.2.4 加分子程序........................................................................................................16
3.2.5 减分子程序...........................................................................................................16
3.2.6 调整时间子程序..................................................................................................17
3.2.7 半场交换比分子程序........................................................................................19
3.2.8 比赛暂停子程序................................................................................................20
3.2.9 中场指示灯程序............................................................................................21
3.2.10 主程序................................................................................................................22
4 . PROTEUS 仿真..........................................................................................................................24
4.1 PROTEUS 简介...................................................................................................................24
4.2 仿真过程...........................................................................................................................24
5. 硬件焊接与调试........................................................................................................................27
6.课程设计体会..............................................................................................................................28
参考文献..........................................................................................................................................29
附 1 源程序...................................................................................................................................30
附 2 系统原理图.............................................................................................................................40
