基于CPLD的交通灯系统

本文主要介绍以CPLD芯片进行十字路口的交通灯的设计，用CPLD作为交通灯控制器的主控芯片，采用VHDL语言编写控制程序，利用CPLD的可重复编程和在动态系统重构的特性，大大地提高了数字系统设计的灵活性和通用性。

CPLD Realizes Traffic-lamp of Control

This paper introduces the electronic-traffic lamp, which is based on the VHDL and is completed by CPLD. The VHDL language is used as the IEEE standard hardware describes the language to constitute the part with the EDA importance, describing the ability with its mighty system, the mature design construction of the norm. Originally design the traffic-lamp which imitates the crossroad. Write the controller of this kind of traffic- lamp with VHDL language.