物流信息网实现【JSP,JAVA论文,毕业设计范文】.zip

洛阳理工学院毕业设计(论文) I ?????????????????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 Alter a公司 Cyclon e系列的 EPlC3T1444C 8 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。???? VHDL ,交通灯, EDA 洛阳理工学院毕业设计(论文) II THE LIGHT CONTROLLER BASED ON FPGA DESIGN ABSTRACT With the development of the economy, microelectronic technology, computer technology and the automatic theory are developed rapidl y. 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 people. On 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 ina 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-ti me applications, high speed, high reliabilit y, low failure rate, and small volume. By using the plat form of software design system Quart us 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 aut omatical ly control the traffic light s. KEY WORDS: VHDL , traffic light , EDA 洛阳理工学院毕业设计(论文) III ????............................................................................................................ 1 ?1? FPGA ??....................................................................................... 2 FPGA 的简介.................................................................................... 2 FPGA 的应用.......................................