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1、基于VDHL的8位数字密码锁设计摘要本文主要介绍运用VDHL技术设计数字密码锁的方法。本设计采用自上而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VDHL来设计这些模块，并且分别进行软件的仿真。仿真结果表明：该数字密码锁能够效验8位十进制数密码，且有预置密码（即万能密码），显示输入密码，设置密码，修改密码，输入错误回删，关锁等功能。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，具有非常好的应用前景关键词：QUARTUSⅡ；VDHL;数字密码锁8-bitdigital-
2、basedVDHLlockdesignAbstractThispaperdescribestheuseofdigitallocksVHDLtechnicaldesignapproach.Thisdesignusestop-downdesignofdigitalsystem,thedigitalcodelocksystemisdividedintoseveralsubsystems,andfurtherdetailedplanningforanumberofmodules,thenthehardwaredescriptionlanguageVD
3、HLtodesignthesemodulesandthesimulationsoftware,respectively.Simulationresultsshowthat:thedigitalcodelocktoefficacy8-bitdecimalcode,andhavepresetpassword(thatis,universalpassword),showpassword,setpassword,changepassword,entertheerrorbacktothedelete,lockandotherfunctions.Thel
4、ocksmallsize,lowpowerconsumption,simpleoperation,notafraidofpower-down,maintenanceandupgradesareveryconvenient,hasaverygoodprospectofapplicationhttp://www.shuiqq.com/Keywords:QUARTUSⅡ;VHDL;digitalcodelock目录引言····························································61.EDA
5、VHDL简介··················································72.课程设计目的与内容·············································82.1课程设计目的··············································82.2课程设计内容·············································82.3课程设计提示········································
6、······83.电子密码锁设计过程·············································93.1设计规划·················································94.VHDL源程序···················································104.1密码锁&30秒计时模块····································114.2仿真后原理图······························
7、··············124.3动态扫描模块············································134.4仿真后原理图············································145.系统仿真······················································155.1连线完成后原理图·········································155.2波形仿真·························
8、························155.3仿真结果·················································
