目录
一、 实验目的...................................................................................................................1
二、 设计任务...................................................................................................................1
三、 程序设计...................................................................................................................1
3.1
分频器
..................................................................................................................1
3.2 45 秒倒计时..........................................................................................................2
3.3
数码管译码器
......................................................................................................3
3.4 总控制器..............................................................................................................4
3.5
顶层设计
..............................................................................................................5
3.6 引脚分配..............................................................................................................6
四、 波形仿真
...................................................................................................................7
4.1 引脚说明..............................................................................................................8
4.2
无紧急状况
..........................................................................................................8
4.3 出现紧急状况......................................................................................................9
五、 分析与总结...............................................................................................................9
六、 附录
.........................................................................................................................10
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