文档介绍：基于FPGA的交通灯控制器设计
摘要
超高速硬件描述语言VHDL,是对数字系统进行抽象的行为与功能描述到具体的内部线路结构描述,利用EDA工具可以在电子设计的各个阶段、各个层系进行计算机模拟验证,保证设计过程的正确性,可大大降低设计成本,缩短设计周期。本文介绍的数字秒表设计,利用基于VHDL的EDA设计工具,采用大规模可编程逻辑器件FPGA,通过设计芯片来实现系统功能。
交通灯控制系统可以实现路口红绿灯的自动控制。基于FPGA设计的交通灯控制系统具有电路简单、可靠性强、实时快速擦写、运算速度高、故障率低、可靠性高,而且体积小的特点。本设计采用Altera公司Cyclone系列的EPlC3T1444C8芯片,在Quartus II软件平台上使用VHDL语言,采用自顶向下的设计方法对系统进行了模块化设计和综合,并进行了仿真。该系统可实现十字路口红绿灯及左转弯控制和倒计时显示,仿真结果结果表明系统能够自动控制交通灯转变。
关键词:VHDL,交通灯,EDA
THE LIGHT CONTROLLER BASED ON FPGA DESIGN
ABSTRACT
With the development of the economy, microelectronic technology, computer technology and the automatic theory are developed rapidly. Its application is ing more and more widely. But the traffic light as an important traffic,it also has developed quickly with the improving requirement of the all the system of the traffic light, The system of traffic control which designed based on FPGA is received by more and more people.
The system of traffic control can realize the automatic control of traffic light in a intersection. The system of traffic control which designed based on FPGA has many characteristics such as simple circuit, reliable operation, toerase function quickly with real-time applications, high speed, high reliability, low failure rate, and small volume. By using the platform of software design system Quartus II and the form of the VHDL language, we simulate the system by using EPlC3T1444C8 Mars device and the result show that the download system can automatically control the traffic lights.
KEY WORDS: VHDL,traffic light,EDA
目录
前言 1
第1章 FPGA概述 2
FPGA的简介 2
FPGA的应用 2
第2章 VHDL硬件描述语言 3
VHDL程序基本结构 3
实体 3
结构体 4
库 4
VHDL语言 4
VHDL文字规则 4
VHDL数据对象 4
VHDL数据类型 5
VHDL 顺序语句 5
VHDL并行语句 5
第3章系统设计与仿真 6
系统介绍 6
设计任务 6
设计要求 6
系统设计仿真 7
顶层框图的设计 7
时序状态图的设计 7
工程设计流程框图: 8
芯片的选择 8
各个模块的设计与仿真 8
结论 23
谢辞 24
参考文献 25
附录 26
外文资料翻译 28
前言
当今社会是数字化的社会,是数字