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目录
摘要.....................................................................................................................................................3
前言.....................................................................................................................................................5
第一章设计任务及要求.....................................................................................................................6
1.1 设计容与要求.......................................................................................................................6
1.2 课题理解...............................................................................................................................6
第二章系统设计方案.........................................................................................................................7
2.1 总体设计方案.......................................................................................................................7
2.2 硬件电路确定.......................................................................................................................7
2.3 交通灯控制系统状态...........................................................................................................9
2.3.1 交通灯与 PA,PB 口的关系........................................................................................9
2.3.2 交通灯各路口状态表................................................................................................9
第三章 系统的硬件说明..................................................................................................................10
3.1 芯片简介.............................................................................................................................10
3.1.1 AT89C52..................................................................................................................10
3.1.2 74LS373...................................................................................................................10
3.1.3 8255..........................................................................................................................11
3.1.4 7279..........................................................................................................................11
3.2 交通灯系统各局部功能分析及各逻辑器件描述............................................................13
第四章软件设计...............................................................................................................................15
4.1 设计要求.............................................................................................................................15
4.2 流程图.................................................................................................................................15
4.3 程序调试.............................................................................................................................18
第五章调试与测试结果分析...........................................................................................................19
5.1 软件调试.............................................................................................................................19
5.2 硬件调试.............................................................................................................................19
5.3 硬件和软件的测试.............................................................................................................19
5.4 调试过程中遇到的问题.....................................................................................................19
5.5 实验结果分析.....................................................................................................................20
5.6 系统实现.............................................................................................................................20
第六章 小结......................................................................................................................................20
参考文献...........................................................................................................................................21
附录...................................................................................................................................................22
.Ⅰ 元器件清单............................................................................................................................22
.proteusⅡ 仿真图.......................................................................................................................24
.Ⅲ 实物图..................................................................................................................................25
.Ⅳ 程序清单..............................................................................................................................26
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