自己做的vhdl课程设计，交通灯：实现主干道倒计时，分别为30,20,5秒，分情况：当主干道有车时，红黄绿交替，当只一个道路上有车时，那个道的交通灯变绿色，利用max+plus2做成，使用flex8000,epf8282alc84_4只用加一个38译码器模块即可，使用别的板子也可以运行-VHDL to do their own curriculum design, traffic lights: the realization of the trunk road countdown, 30,20

能实现多功能。既可做倒计时秒表,又可进行定时，还可以通过扩展完成其他功能，而且功能的相互转换也十分简单-To achieve multi-functional. Can do the countdown stopwatch, but also to timing, but also by extending the completion of other functions, and inter-conversion functions is also very simple and

交通灯源代码 帮同学做的毕业设计，可以实现红绿灯，数码管倒计时显示-Traffic light source designed to help students do graduate, you can achieve the traffic lights, digital countdown display tube