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单片机课程设计 抢答器设计 共22页，5750字
目 录
绪论……………………………………………………………………………..1
1 总体设计……………………………………………………………………..2
1.1 任务..............................................................................................................2
1.2 方案论证......................................................................................................2
2 系统硬件设计..................................................................................................3
2.1电路设计.......................................................................................................3
2.2 系统电路原理..............................................................................................3
2.3 主要器件选择..............................................................................................4
2.4 各电路简介..................................................................................................5
3 系统软件设计..................................................................................................9
3.1 系统程序流程图..........................................................................................9
3.2 源程序代码如..............................................................................................9
4 系统仿真及调试............................................................................................15
5 抢答器干扰防护............................................................................................17
5.1采用隔离技术.............................................................................................17
5.2正确的接地措施.........................................................................................17
6课程设计的总结与体会.................................................................................18
参考文献............................................................................................................19
致谢....................................................................................................................20