基于FPGA的电子密码锁的设计毕业设计.doc

基于FPGA的电子密码锁的设计 本科毕业设计 基于FPGA的电子密码锁的设计 摘 要 随着现代电子技术的迅猛发展，相信电子密码锁将会逐渐取代普通的机械密码锁。主要是由于电子密码锁拥有几个普通机械密码锁不可能替代的优点：必威体育官网网址系能好、安全度高、即防盗性能强，不需要使用钥匙、即记住密码就可开锁等等。本文主要阐述了一种基于现场可编程门阵列FPGA器件的电子密码锁的设计方法。用FPGA器件构造系统，所有算法完全由硬件电路来实现，使得系统的工作可靠性大为提高。而且由于FPGA具有现场可编程功能，当设计需要更改时，只需更改FPGA中的控制和接口电路，利用EDA工具将更新后的设计下载到FPGA中即可，无需更改外部电路的设计，大大提高了设计的效率。因此，采用FPGA开发的数字系统，不仅具有很高的工作可靠性，而且升级也极其方便。此设计采用EDA技术，利用MAX+PLUSⅡ工作平台和VHDL硬件描述语言，设计了一种电子密码锁，并通过本学院的实验箱FPGA芯片实现。 关键词：电子密码锁 FPGA VHDL硬件描述语言 EDA MAX+PLUSⅡ PAGE PAGE 38 The Design of Electronic Locks Based on FPGA Wu Yaoxiao (College of Engineering, South China Agricultural University, Guangzhou 510642, China) Abstract：With the rapid development of modern electronic technology, electronic locks will gradually replace the ordinary mechanical locks. Confidential Department has the advantages of several ordinary mechanical locks can not substitute electronic locks, such as high security, anti-theft performance, and does not require the use of a key, Remember password can unlock. This article focuses on the design method which is based on field programmable gate array (FPGA) devices, electronic locks. FPGA device constructed system, all of the algorithms completely realized by a hardware circuit so that the operational reliability of the system can be greatly improved. And with field-programmable function, when it need to change the methods of the design, just change the FPGA control and interface circuit with using EDA tools updated design that is downloaded to the FPGA without the need to change the external circuit design, greatly improving the efficiency of the design. Therefore, the use of digital systems developed by the FPGA, not only has a very high operating reliability, but also extremely easy to upgrade. The design of the system uses the EDA technology, MAX+PLUSⅡsoftware and VHDL hardware description language, designed an electronic lock, and implemented by the Institute of experimental box FPGA chip. Keywords: electronic locks