毕业设计-基于VHDL的八路数字显示抢答器的设计.doc

基于VHDL语言的八路数字抢答器系统的设计 XXX 指导教师：XXX [摘要] 本设计使用VHDL语言设计一个八路数字抢答器系统。VHDL是一种全方位的硬件描述语言，几乎覆盖了以往各种硬件描述语言的功能，整个自顶向下或自底向上的电路设计过程都可以用VHDL来完成。本文阐述了EDA的概念和发展、VHDL语言的优点和语法结构并分析讲解了八路数字抢答器的各模块的功能要求、基本原理以及实现方法。本系统的设计就是采用VHDL硬件描述语言编程，基于MAX-PLUS II平台进行编译和仿真来实现的，其采用的模块化、逐步细化的设计方法有利于系统的分工合作，并且能够及早发现各子模块及系统中的错误，提高系统设计的效率。本设计主要的功能是：1.对第一抢答信号的鉴别和锁存功能；2. 抢答成功声音报警；3.数码显示抢答成功组别；4. 答题限时功能。 [关键词] 电子设计自动化（EDA）;VHDL语言;抢答器 The Design of the 8 Digital Vies to Answering Snatches Based on VHDL He Liwei (Grade 07,Class 6,Major electronics and information engineering ，Electronics and information engineering Dept.，Shaanxi University of Technology，Hanzhong 723003，Shaanxi) Tutor: Zhang Zhiwei [Abstract] This design is the 8 digital vies to answering snatches based on VHDL.VHDL is a kind of hardware description language, which is all-rounds, nearly covers the function of each other kind of hardware description language .Both the entire top-down and bottom-Up circuit design process could be accomplished by VHDL. This article elaborates the concept and development of EDA, explains the advantages and grammar structure of VHDL, meanwhile, analyses the function request, the basic principle as well as the method of accomplishment of each parts. This systems design programmers in the VHDL compiled and emulated basing on MAX-PLUS II platform of Altera. Using the modulation, and the gradually detailing design method is of great benefit for the systems division of labor and cooperation, besides, the usage of this method can detect errors, as early as possible, in several of sub modules and system, enhancing the efficiency of the system design. The main features of this design are: 1. accurately identification of the signal of the first answer and latching this signal; 2. snatches the answering successful and voice alarm 3. Digital display faction 4.the time limited function. [Key words]: EDA; VHDL; the Answering snatches 目 录 1 引言 1 1.1 EDA技术的设计优势 1 1.2 论文结构 1 2 系统方案的论证和选择 2 3 系统的设计平台概述 3 3.1 传统和现代的数字系统设计方法比较 3