基于VHDL的交通灯控制器的程序设计  

Program design of traffic light controller based on VHDL

作　　者：余丽红[1] 龙诺春[1] 林春景[1] 柳贵东 Yu Lihong;Long Nuochun;Lin Chunjing;Liu Guidong(Electronic and Information Engineering Department,Guangdong Baiyun University,Guangzhou 510450,China)

机构地区：[1]广东白云学院电气与信息工程学院,广东广州510450

出　　处：《无线互联科技》2020年第17期98-100,共3页Wireless Internet Technology

摘　　要：基于VHDL语言的交通灯控制器的设计用于模拟路口的红黄绿交通灯的变化过程。该设计可以分为时钟分频、红绿灯状态转换及3种状态译码、数码管动态扫描和数码管显示4个模块,是一个综合性的EDA实验项目。时钟分频模块用于将20 MHz的时钟分为1 Hz的倒计时时钟信号和大于100 Hz的动态扫描时钟信号。文章介绍了VHDL语言的模块化程序设计思想和交通灯的设计思路,并分别编写了4个模块的VHDL程序以及顶层模块的程序,对程序进行了编译并实现了硬件仿真。A traffic light controller based on VHDL language is designed to simulate the changing process of red,yellow and green traffic lights at intersections.As a comprehensive EDA experiment project,the design can be divided into four modules:clock frequency division,traffic light state conversion and three state decoding,digital tube dynamic scanning and digital tube display.The clock division module is used to divide 20 MHz of clock into 1 Hz of countdown clock signal and more than 100 Hz of dynamic scanning clock signal.This paper introduces the modular programming idea of VHDL language and the design idea of traffic lights,and compiles the VHDL program and the top of 4 modules respectively Layer module program,the program is compiled and implemented hardware simulation.

关 键 词：超高速集成电路硬件描述语言 分频器 计数器 动态扫描 

分 类 号：TP311.1[自动化与计算机技术—计算机软件与理论] U491.54[自动化与计算机技术—计算机科学与技术]