基于VHDL的数字密码锁设计

本文主要介绍运用VHDL技术设计数字密码锁的方法。本设计采用自顶向下的数字系统设计方法,将数字密码锁系统分解为若干子系统,并且进一步细划为若干模块,然后用硬件描述语言VHDL来设计这些模块,并且分别进行软件和硬件的仿真。仿真结果表明:该数字密码锁能够校验3位十进制数密码,且可以预置密码,显示输入密码,具有输入错误指示,解码有效指示等相应的状态指示。该密码锁体积小,功耗低,操作简单,不怕掉电,维护和升级都十分方便,具有较好的应用前景。

Design of the digital encrypted lock based on VHDL

This thesis mainly introduces how to design a digital encrypted lock using VHDL technology.This digital encrypted lock is designed with top-down approach.Firstly,the digital encrypted lock system is divided into several sub-systems and several modules.Secondly,these modules are described with VHDL,and simulated using software and hardware.The outcome of simulation indicates that this digital encrypted lock can checkout 3 decimal passwords,setup the encryption codes,display the codes you enter,and indicate the input error and decoding availability.This digital encrypted lock has better application prospect because of small volume,low power,simple operation,not dreading power-off,easy maintenance and update.