基于FPGA的交通灯控制系统，红、绿灯按一定的规律亮和灭，绿灯亮时，表示该车道允许通行；红灯亮时，该车道禁止通行。并在亮灯期间进行倒计时，并将运行时间用数码管显示出来。-FPGA-based traffic light control system, red, green, according to certain rules to turn on and off the green light indicates that the lane is allowed to pass red li