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课程设计 可编程彩灯控制器--键盘控制，共15页，5382字
目 录
1 课题描述...........................................................................................................................................1
1.1 硬件电路设计描述.......................................................................................................................1
1.2 软件设计描述...............................................................................................................................1
2 MCS-51单片机硬件描述................................................................................................................1
2.1 MCS—51单片机外部特性.........................................................................................................1
2.2 MCS—51内部机构.....................................................................................................................3
2.2.1 运算器.......................................................................................................................................5
2.2.1.1算术逻辑运算部件ALU......................................................................................................5
2.2.1.2累加器A................................................................................................................................5
2.2.1.3寄存器B................................................................................................................................5
2.2.2 控制器.......................................................................................................................................5
2.2.2.1程序计数器PC......................................................................................................................5
2.2.2.2 堆栈指针SP..........................................................................................................................6
2.2.2.3 数据指针DPTR...................................................................................................................6
3 可编程彩灯控制器原理图 .............................................................................................................7
3.1原理图说明 ..................................................................................................................................7
4 彩灯控制流程图...............................................................................................................................8
5 汇编程序...........................................................................................................................................9
6 调试及结果分析..............................................................................................................................12
总结.................................................................................................................................................14 参考文献..............................................................................................................................................15

1 课题描述
1.1 硬件电路设计描述
89C51应用系统设计(12MHZ晶振电路, 上电复位电路),5V电源。
P1口接八个彩灯，P3.0---p3.7接8个键盘堤供8种组合。
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