石家庄经济学院 信息工程学院 数字逻辑课程设计报告 题 目 十字路口交通灯控制器 姓 名 赵永超 学 号 ************ 班 号 4 0 9 1 0 9 0 7 0 6 指导老师 成 绩 2 0 1 0 年 6 月 目 录 1. 功能描述 ··································································· 52 2. 开发工具选择 ····························································· 52 3. 设计方案 ·································································· 52 4． 模块描述 ·································································· 52 5. VHDL 实现 ································································ 52 6. 调试仿真 ····································································· 52 7. 课程设计回顾总结 ······················································ 52 参 考 文 献 ·································································· 52 附录 ············································································· 52 1 .功能描述 ar,ay,ag 和br,by,bg 分别表示A 和B 道的红灯，黄灯，绿灯的驱动信号。信号灯在高电平时亮，低电平时熄灭。十字路口的交通灯控制电路功能： 十字路口交通灯控制规则为：当A 道无车时，传感器输出X＝0，A道红灯一直亮，B 道绿灯一直亮，直到15s 定时时间到且A 道有车为止；当B 道通行15s 且A 道有车时，B 道绿灯亮变成黄灯，经过5s 后变成红灯亮，A 道由红灯亮变成绿灯亮，直到10s 定时时间到或者X＝0 为止；最后A 道黄...
