基于VHDL的交通灯控制系统的设计

摘要

摘要

EDA技术的一个重要特征就是使用硬件描述语言(HDL)来完成系统的设计文件，应用VHDL的数字电路实验降低了数字系统的设计难度,这在电子设计领域已得到设计者的广泛采用。本设计就是针对交通信号灯控制器的设计问题，提出了基于VHDL语言的交通信号灯系统的硬件实现方法。通过对系统进行结构分析，采用了层次化的设计方法，给出了各个模块的VHDL程序，并且利用Quartus Ⅱ对应用程序进行了仿真，并给出了相应的仿真结果。通过电路优化设计,可以使用规模更小的可编程逻辑芯片,从而降低系统成本。

关键词：交通信号灯；VHDL；仿真

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ABSTRACT

ABSTRACT

One important characteristic of the EDA is that the design documents should be completed by the HDL, the digital circuit experiment utilized very-high-speed integrated circuit hardware description language(VHDL) may reduce the difficulties of digital system designing, and it is widely used by electronic designer now. Aiming at the design problem of traffic light controller, this paper puts forward a hardware realization method of traffic light system with VHDL. By analyzing the architecture of system, it gives the program of each module with VHDL using hierarchical design means. It also gives the simulation results by QuartusⅡ. Optimizes the design through the electric circuit, may use the scale smaller programmable logic chip, thus reduces the system cost.

Key word: Street-traffic control lights; VHDL; Simulation

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目录

目录

第1章 第2章

引言 ................................................................................................................. 1 EDA技术概述 ............................................................................................... 2

2.1 EDA技术及其发展 ............................................................................................ 2 2.2 EDA与传统电子设计方法的比较 .................................................................... 2 2.3 EDA的工程设计流程 ........................................................................................ 2 第3章

可编程技术简介 ............................................................................................. 4 3.1 可编程逻辑器件概述 ........................................................................................ 4 3.2 FPGA/CPLD概述 ............................................................................................... 4 3.3 硬件描述语言介绍 ............................................................................................ 5 3.4 选择VHDL硬件描述语言设计的优势 ........................................................... 6 3.5 软件开发工具Quartus II 简介 ......................................................................... 6 第4章

交通灯控制系统的设计 ................................................................................. 8 4.1 系统功能分析 .................................................................................................... 8 4.2 系统结构设计 .................................................................................................... 9 4.3 系统程序实现与仿真分析 ............................................................................. 10

4.3.1 时钟脉冲发生电路 ................................................................................ 10 4.3.2 计数秒数选择电路 ................................................................................ 12 4.3.3 倒计时控制电路 .................................................................................... 15 4.3.4 红绿灯信号控制电路 ............................................................................ 19 4.3.5 建立程序包 ............................................................................................ 22 4.3.6 连接各个模块 ........................................................................................ 23 4.3.7 状态机的优势 ........................................................................................ 24

结束语 ............................................................................................................................ 26 参考文献 ........................................................................................................................ 27 致谢 ................................................................................................................................ 28 附录 ................................................................................................................................ 29

1.时钟发生电路程序代码 ..................................................................................... 29 2.计数秒数选择电路程序代码 ............................................................................. 31

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目录

3.倒计时控制电路程序代码 ................................................................................. 32 4.红绿灯信号控制电路程序代码 ......................................................................... 34 5.连接各个模块的程序代码 ................................................................................. 38 外文资料原文 ................................................................................ 错误！未定义书签。 翻译文稿 ........................................................................................ 错误！未定义书签。

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