自动售货机大学本科方案设计书.docVIP

毕业设计 自动售货机 自动售货机 摘 要 自动售货机广泛的应用于社会的各个场合，极大的方便了人们的购物和生活。本设计简要介绍了EDA（电子设计自动化）技术，简要阐述了VHDL(Very High Speed Integrated Circuit Hardware Description Language)的一些特点和语法结构,介绍了自动售货机系统的基本原理、系统组成和主要功能；并分析讨论了用VHDL语言开发的自动售货机系统的设计流程。本设计利用Altera公司的开发软件Quartus II平台，采用VHDL硬件描述编程语言的设计方法设计系统核心电路和硬件程序，在Quartus II软件平台上进行编译和电路仿真。 最终完成的自动售货机具有投币功能、商品选择、购物撤消、异常退币、自动找零、计算存货等主要功能。整个系统的开发设计体现了在Quartus II软件平台上用VHDL语言设计数字控制系统的实用性。 关键词：EDA VHDL 自动售货机 Vending machine ABSTRACT Vending machine is used widely in the each situation of the society, and it brings so much convenience to the peoples shopping and their life. The design introduces briefly the EDA(electronic design automation)technology, it describes briefly the characteristic and the grammar structure of VHDL(Very High Speed Integrated Circuit Hardware Description Language) , and it introduces basic principle、system structure and main function of vending machine system; Then it analysises vending machine’s system design process which is developed by VHDL language. This design makes use of the development software platform which is called Quartus II of company Altera , it designs system core circuit and hardware program which adopts the design method of VHDL hardware description programming language, it compile and circuit simulat in the Quartus II software platform. Finally, the vending machines have coin function, commodities choice, shopping irrevocable, abnormal retreat currency, automatic change, calculation of inventories and the other major functions. Development design of the whole system reflects practicability that digital control system is designed by VHDL language in the Quartus II software platform. Key words：EDA VHDL Vending machine 目 录 第一章 绪论 1 1.1 课题背景 1 1.2 课题的目的与意义 1 1.2.1课题的目的 1 1.2.2课题的实现方法及意义 2 第二章 EDA与FPGA技术概述 3 2.1 EDA技术简介 3 2.1.1EDA技术的发展概况 3 2.1.2EDA技术的基本特征 4 2.2 FPGA简介 5 2.2.2FPGA的结构及其发展 5 2.3 VHDL硬件描述语言 6 2.3.1VHDL概述 6 2.3.2VHDL特点 7 2.3.3VHDL语言知识点综合 7 第三章 EDA的工具软件 19 3.1 QuartusII软件介绍 19 3.1.