Introduction - If you have any usage issues, please Google them yourself
(1) to learn and master the understanding of frequency division circuit, universal synchronous counter, asynchronous counter to use
(2) to understand Moore and Mealy two state machine of the general programming method, according to engineering control requirements to design the corresponding logic and timing control procedures.
To the development of the six small LED lights on the board simulation, three small lights to simulate a direction of the red, yellow and green traffic lights, using VHDL language programming to achieve red and green traffic light control program.