北邮数字电路综合实验报告

1、数字电路综合实验报告简易智能密码锁一、实验课题及任务要求设计并实现一个数字密码锁，密码锁有四位数字密码和一个确认开锁按键，密码输入正确，密码锁翻开，密码输入错误进展警示。根本要求：1、密码设置：通过键盘进展4位数字密码设定输入，在数码管上显示所输入数字。通过密码设置确定键BTN键进展锁定。2、开锁：在闭锁状态下，可以输入密码开锁，且每输入一位密码，在数码管上显示"-',提示已输入密码的位数。输入四位核对密码后，按“开锁键，假设密码正确那么系统开锁，假设密码错误系统仍然处于闭锁状态，并用蜂鸣器或led闪烁报警。3、在开锁状态下，可以通过密码复位键BTN键来去除密码，恢复初始密码

2、“0000”。闭锁状态下不能去除密码。4、用点阵显示开锁和闭锁状态。提高要求：1、输入密码数字由右向左依次显示，即：每输入一数字显示在最右边的数码管上，同时将先前输入的所有数字向左移动一位。2、密码锁的密码位数46位可调。3、自拟其它功能。二、系统设计2.1 系统总体框图2.2 逻辑流程图程序主要分为6个模块：键盘模块，数码管模块，点阵模块，报警模块，防抖模块，控制模块。以下进展详细介绍。1.键盘模块本模块主要完成是4X4键盘扫描，然后获取其键值，并对其进展编码，从而进展按键的识别，并将相应的按键值进展显示。键盘扫描的实现过程如下：对于4X4键盘，通常连接为4行、4歹U,因此要识别按键，只需要

3、知道是哪一行和哪一列即可，为了完成这一识别过程，我们的思想是，首先固定输出高电平，在读入输出的行值时，通常高电平会被低电平拉低，当当前位置为高电平“1时,没有按键按下，否那么，如果读入的4行有一位为低电平，那么对应的该行肯定有一个按键按下，这样便可以获取到按键的行值。同理，获取列值也是如此，先输出4列为高电平，然后在输出4行为低电平，再读入列值，如果其中有哪一位为低电平，那么肯定对应的那一列有按键按下。由此可确定按键位置。X789X456X123XX0xX为无效按键按键储存键盘译码. word.zl-2数码管模块本实验采用六位七段共阴极数码管，通过选通6个位选管脚，向相应的IO口送低电平来点亮

4、其中任何一位数码管，因为现在采用四位密码锁，所以只是用了其中四个，最高位两位数码管位选全部置1.如下附上7段共阴极数码管真值表3 .点阵模块点阵模块，共由8*8*2个发光二极管组成，行低电平有效，列高电平有效。要求在开锁模式和闭锁模式显示不同的图案，那么先将要显示的每幅图像画8*8个小方格的矩形框中,再在有图案下落处的小方格里填上“，无图案处填上“0，这样就形成了与图案所对应的二进制数据在该矩形框上的分布。当闭锁时以红色点阵显示，此时绿色点阵全部置0,反之亦然。4 .报警模块当报警程序被调用，蜂鸣器输出高电平进展报警，表示输入密码错误5 .防抖按键输入只有为15ms以上的高电平时才会读出按键值

5、从而消除电路中的抖动。6 .控制中心lockmode='1表示关锁，此时点阵显示落锁，按任何键都不会显示密码，清零或者开锁，在此时输入密码kwei从0开场不断加1,输入的密码位数在数码管上依次左移，当输入密码m与存放器中预设密码mm一样时，按下确认键btn2切换为开锁状态，lockmode=0,此时按下btnl表示清零，恢复为初始密码0000,按set键存放器密码，按下btnloc切换为关锁状态。三、仿真波形分析在QUARTUS2中应用系统自带的功能进展波形仿真，这里采用了分模块仿真。主程序仿真在主要功能程序方面波形如下，在初始化模式按下set键系统进入修改密码状态，setmode波形

6、显示高电平。为仿真方便，仅使kbin即行输入信号在1011和1111两个状态下相互转换，在不同的kbout即列扫描输出信号下分别对应4、5、6、7四个数字，故密码存放器m冈为输入的修改后的密码。按下btn2确认键确认密码后，setmode变为低电平，即修改密码状态完毕。按下btn1时清零，密码存放器取值复原为0000,至此均为开锁状态下的操作，lockmode一直为低电平。按下闭锁键btnloc后，lockmode从0跳变到1,由此进入闭锁模式。按键消抖模块仿真当按下键时得到的高电平为输入x,持续一定时间前方可输出一个高电平，而无论按下的时间多长，都只输出一个高电平y,从而实现消除按键电路中的

7、抖动。pinxjliriQn分频模块仿真为仿真方便，改变分频比。原程序在50Mhz时钟输入下，输出分别为1Mhz、200hz1000hz、500hz,分别用于键盘扫描、消抖模块输入、点阵扫描以及数码管扫描。数码管模块仿真由smgcatout输出可以看出低四位数码管依次选通。第i位选通时，smgzf为mi的七段数码管的译码值。点阵模块仿真当lockmode=1时dzcolr全部为0仅dzcolg显示图案；当lockmode=0时dzcolg全部为0由dzcolr显示图案；而dzrow一直在进展行扫描，形成了两种不同颜色点阵。报警模块仿真当bj=0时，fmq为0;bj=1时，fmq将clk分频后输

8、出，即蜂鸣器发出声响。四、源程序顶层文件libraryieee;useieee.std_logic_1164.all;useieee.std_logic_unsigned.all;entitylockisport(clk:instd_logic;setmode:outstd_logic;lockmode:outstd_logic;set:instd_logic;btn1,btn2,btnloc:instd_logic;smgzf:outstd_logic_vector(6downto0);smgcatout:outstd_logic_vector(5downto0);kbin:instd_lo

9、gic_vector(3downto0);kbout:bufferstd_logic_vector(3downto0);dzrow,dzcolr,dzcolg:outstd_logic_vector(7downto0);fmq:outstd_logic);endlock;architecturebehaveoflockissignalsetm:std_logic;signallockm:std_logic;signallbj:std_logic;signallkwei:integerrange0to4;signallm1,lm2,lm3,lm4:integerrange0to9;signalc

10、lk_1:std_logic;-1MHzsignalclk_2:std_logic;-200Hzsignalclk_3:std_logic;-1000Hzsignalclk_4:std_logic;-500Hzponentkbis键盘模块port(clk:instd_logic;set:instd_logic;btn1,btn2,btnloc:instd_logic;kbin:instd_logic_vector(3downto0);kbout:bufferstd_logic_vector(3downto0);bj:outstd_logic;setmod:outstd_logic;lockmo

11、d:outstd_logic;kbwei:outintegerrange0to4;m1x,m2x,m3x,m4x:outintegerrange0to9);endponent;ponentsmgis数码管显示模块port(clk:instd_logic;setmode:instd_logic;lockmode:instd_logic;kwei:inintegerrange0to4;m1,m2,m3,m4:inintegerrange0to9;smgzf:outstd_logic_vector(6downto0);smgcatout:outstd_logic_vector(5downto0);e

12、ndponent;ponentdzis点阵模块port(clk:instd_logic;-set:instd_logic;lockmode:instd_logic;dzrow,dzcolr,dzcolg:outstd_logic_vector(7downto0);endponent;ponentalarmis报警模块port(clk:instd_logic;bj:instd_logic;fmq:outstd_logic);endponent;ponentfenpinis分频模块port(clk:instd_logic;clk_out1:outstd_logic;clk_out2:outstd_

13、logic;clk_out3:outstd_logic;clk_out4:outstd_logic);endponent;begina1:fenpinportmap(clk=>clk,clk_out1=>clk_1,clk_out2=>clk_2,clk_out3=>clk_3,clk_out4=>clk_4);u1:kbportmap(clk=>clk,set=>set,btn1=>btn1,btn2=>btn2,btnloc=>btnloc,kbin=>kbin,kbout=>kbout,bj=>lbj,setm

14、od=>setm,lockmod=>lockm,kbwei=>lkwei,m1x=>lm1,m2x=>lm2,m3x=>lm3,m4x=>lm4);u2:smgportmap(clk=>clk_4,setmode=>setm,lockmode=>lockm,kwei=>lkwei,m1=>lm1,m2=>lm2,m3=>lm3,m4=>lm4,smgzf=>smgzf,smgcatout=>smgcatout);u3:dzportmap(clk=>clk_3,lockmode=>l

15、ockm,dzrow=>dzrow,dzcolr=>dzcolg,dzcolg=>dzcolr);u4:alarmportmap(clk=>clk,bj=>lbj,fmq=>fmq);setmode<=setm;lockmode<=lockm;end;键盘模块libraryieee;useieee.std_logic_1164.all;useieee.std_logic_unsigned.all;entitykbisport(clk:instd_logic;set:instd_logic;btn1,btn2,btnloc:instd_logic;

16、kbin:instd_logic_vector(3downto0);kbout:bufferstd_logic_vector(3downto0);bj:outstd_logic;setmod:outstd_logic;lockmod:outstd_logic;kbwei:outintegerrange0to4;m1x,m2x,m3x,m4x:outintegerrange0to9);endkb;architecturebehaveofkbissignaljpout:integerrange0to10;signalalarm:std_logic;signaltmp4:integerrange0t

17、o2499999;signalclkfd:std_logic;signalm1,m2,m3,m4,mm1,mm2,mm3,mm4:integerrange0to9;signalwei:integerrange0to3;signalkwei:integerrange0to4;signalsetmode:std_logic;signallockmode:std_logic;signalset1:std_logic;signalclear:std_logic;signalsure:std_logic;signallock:std_logic;signalen,finish:std_logic;sig

18、nalbtn1_out,btn2_out,btnloc_out,set_out:std_logic;signalclk_1:std_logic;-1MHzsignalclk_2:std_logic;-200Hzponentscanisport(clk_1:instd_logic;clk_2:instd_logic;row:instd_logic_vector(3downto0);col:bufferstd_logic_vector(3downto0);en_up:bufferstd_logic;y:outintegerrange0to10);endponent;ponentfenpinispo

19、rt(clk:instd_logic;clk_out1:outstd_logic;clk_out2:outstd_logic;clk_out3:outstd_logic;clk_out4:outstd_logic);endponent;ponentdebounceisport(clk,x:instd_logic;y:outstd_logic);endponent;beginsetmod<=setmode;lockmod<=lockmode;bj<=alarm;kbwei<=kwei;m1x<=m1;m2x<=m2;m3x<=m3;m4x<=m4;

20、u1:scanportmap(clk_1=>clk_1,clk_2=>clk_2,row=>kbin,col=>kbout,en_up=>en,y=>jpout);u2:fenpinportmap(clk=>clk,clk_out1=>clk_1,clk_out2=>clk_2,clk_out3=>open,clk_out4=>open);u3:debounceportmap(clk=>clk_2,x=>btn1,y=>btn1_out);u4:debounceportmap(clk=>clk_2,x=&

21、gt;btn2,y=>btn2_out);u5:debounceportmap(clk=>clk_2,x=>btnloc,y=>btnloc_out);u6:debounceportmap(clk=>clk_2,x=>set,y=>set_out);process(clk)beginif(clk'eventandclk='1')thenif(tmp4=2499999)thentmp4<=0;clkfd<=notclkfd;elsetmp4<=tmp4+1;endif;endif;endprocess;proce

22、ss(clk_1,en,jpout)beginif(clk_1'eventandclk_1='1')thenif(lockmode='1')then闭锁状态下输入密码并读入按键值后存入mmwei<=0;if(jpout/=10)thenif(kwei=3)thenmm4<=jpout;kwei<=kwei+1;elsif(kwei=2)thenmm3<=jpout;kwei<=kwei+1;elsif(kwei=1)thenmm2<=jpout;kwei<=kwei+1;elsif(kwei=0)thenmm1&

23、lt;=jpout;kwei<=kwei+1;endif;endif;if(sure='1')then确认后判断密码是否正确if(mm1=m1)and(mm2=m2)and(mm3=m3)and(mm4=m4)thenlockmode<='0'alarm<='0'正确开锁elsekwei<=0;alarm<='1'错误报警endif;endif;elsekwei<=0;开锁状态下if(lock='1')then上锁lockmode<='1'elseif(se

24、t1='1')thensetmode<='1'修改密码elsesetmode<='0'endif;if(clear='1')then清零m1<=0;m2<=0;m3<=0;m4<=0;-mm1<=0;mm2<=0;mm3<=0;mm4<=0;wei<=0;kwei<=0;alarm<='0'elsif(setmode='1')thenif(jpout/=10)then修改密码状态下读入按键值存入m并移位if(wei=0)t

25、henm1<=m2;m2<=m3;m3<=m4;m4<=jpout;wei<=wei+1;elsif(wei=1)thenm1<=m2;m2<=m3;m3<=m4;m4<=jpout;wei<=wei+1;elsif(wei=2)thenm1<=m2;m2<=m3;m3<=m4;m4<=jpout;wei<=wei+1;elsif(wei=3)thenm1<=m2;m2<=m3;m3<=m4;m4<=jpout;wei<=0;endif;endif;if(sure='

26、1')then确认后完毕修改密码状态setmode<='0'alarm<='0'endif;endif;endif;endif;endif;endprocess;process(set,sure)修改密码键beginif(clkfd'eventandclkfd='1')thenif(set='1')thenset1<='1'endif;if(sure='1')thenset1<='0'endif;endif;endprocess;process

27、(btn1)清零键beginif(btn1='1')thenclear<='1'elseclear<='0'endif;endprocess;process(btn2)确认键beginif(btn2='1')thensure<='1'elsesure<='0'endif;endprocess;process(btnloc)闭锁键beginif(btnloc='1')thenlock<='1'elselock<='0'

28、endif;endprocess;end;键盘扫描libraryieee;useieee.std_logic_1164.all;useieee.std_logic_unsigned.all;entityscanisport(clk_1:instd_logic;-高频(forscan)1Mhzclkout1clk_2:instd_logic;-低频(fordebounce)200hzclkout2row:instd_logic_vector(3downto0);col:bufferstd_logic_vector(3downto0);en_up:outstd_logic;y:outinteger

29、range0to10);endscan;architectureaofscanissignalen:std_logic;ponentdebounceisport(clk,x:instd_logic;y:outstd_logic);endponent;begin. word.zl-u1:debounceportmap(clk=>clk_2,x=>en,y=>en_up);process(clk_1)beginif(clk_1'eventandclk_1='1')then列扫描if(en='1')thencol<="1000

30、"elsecasecoliswhen"1110"=>col<="1101"when"1101"=>col<="1011"when"1011"=>col<="1110"whenothers=>col<="1110"endcase;endif;endif;endprocess;process(clk_1,col,row)beginif(clk_1'eventandclk_1='1'

31、;)thencasecoliswhen"1000"=>if(row(3)androw(2)androw(1)androw(0)='1')thenen<='0'endif;when"1110"=>caserowis-when"1110"=>y<="1111"when"1101"=>y<=1;en<='1-1when"1011"=>y<=4;en<='1'-4

32、when"0111"=>y<=7;en<='1'-7whenothers=>y<=10;endcase;when"1101"=>caserowiswhen"1110"=>y<=0;en<='1'-0when"1101"=>y<=2;en<='1-2when"1011"=>y<=5;en<='1-5when"0111"=>y<=8

33、;en<='1'-8whenothers=>y<=10;endcase;when"1011"=>caserowis-when"1110"=>y<="1111"when"1101"=>y<=3;en<='1'-3when"1011"=>y<=6;en<='1'-6when"0111"=>y<=9;en<='1'-9whenot

34、hers=>y<=10;endcase;whenothers=>null;endcase;endif;endprocess;enda;消抖libraryieee;useieee.std_logic_1164.all;useieee.std_logic_unsigned.all;entitydebounceisport(clk,x:instd_logic;200hz低频时钟y:outstd_logic);enddebounce;architectureaofdebounceistypestateis(s0,s1,s2,s3,s4);5个状态signalpre_s,next_s:

35、state;beginprocess(clk)beginif(clk'eventandclk='1')thenpre_s<=next_s;endif;endprocess;process(pre_s,x)输入为连续3个或以上的高电平时，输出一个高电平begincasepre_siswhens0=>初始状态s0if(x='1')thennext_s<=s1;elsenext_s<=s0;endif;y<='0'whens1=>if(x='1')thennext_s<=s2;elsen

36、ext_s<=s0;endif;y<='0'whens2=>if(x='1')thennext_s<=s3;elsenext_s<=s0;endif;y<='0'whens3=>连续3个高电平，输出一个高电平y<='1'next_s<=s4;whens4=>3个以上高电平，不再继续输出高电平y<='0'if(x='1')thennext_s<=s4;elsenext_s<=s0;endif;endcase;endproce

37、ss;enda;分频模块libraryieee;useieee.std_logic_1164.all;useieee.std_logic_unsigned.all;entityfenpinisport(clk:instd_logic;clk_out1:outstd_logic;clk_out2:outstd_logic;clk_out3:outstd_logic;clk_out4:outstd_logic);endfenpin;architecturedivoffenpinisconstantdiv1:integer:=24;-1Mhz，用于键盘扫描constantdiv2:integer:=

38、124999-200hz,用于消抖constantdiv3:integer:=24999;-1000hz,用于点阵扫描constantdiv4:integer:=49999;-500hz,用于数码管扫描signalc1:integerrange0todiv1;signalc2:integerrange0todiv2;signalc3:integerrange0todiv3;signalc4:integerrange0todiv4;signaltemp1:std_logic;signaltemp2:std_logic;signaltemp3:std_logic;signaltemp4:std_l

39、ogic;beginprocess(clk)beginif(clk'eventandclk='1')thenif(c1=div1)thentemp1<=nottemp1;c1<=0;elsec1<=c1+1;endif;if(c2=div2)thentemp2<=nottemp2;c2<=0;elsec2<=c2+1;endif;if(c3=div3)thentemp3<=nottemp3;c3<=0;elsec3<=c3+1;endif;if(c4=div4)thentemp4<=nottemp4;c4<

40、;=0;elsec4<=c4+1;endif;endif;endprocess;clk_out1<=temp1;clk_out2<=temp2;clk_out3<=temp3;clk_out4<=temp4;enddiv;数码管libraryieee;useieee.std_logic_1164.all;useieee.std_logic_unsigned.all;entitysmgisport(clk:instd_logic;-500hzclkout4setmode:instd_logic;lockmode:instd_logic;kwei:inintegerr

41、ange0to4;m1,m2,m3,m4:inintegerrange0to9;四位密码的值smgzf:outstd_logic_vector(6downto0);编码值smgcatout:outstd_logic_vector(5downto0);endsmg;architecturebehaveofsmgissignalsmgcat:integerrange0to5;signalm1y,m2y,m3y,m4y:std_logic_vector(6downto0);beginprocess(clk)位选码beginif(clk'eventandclk='1')then

42、if(smgcat=5)thensmgcat<=0;elsesmgcat<=smgcat+1;endif;endif;endprocess;process(setmode,lockmode,smgcat)beginif(lockmode='0')thencasesmgcatis输入密码值在数码管显示，从左到右when0=>smgcatout<="110111"smgzf<=m1y;when1=>smgcatout<="111011"smgzf<=m2y;when2=>smgcatout

43、<="111101"smgzf<=m3y;when3=>smgcatout<="111110"smgzf<=m4y;when4=>smgcatout<="111111"when5=>smgcatout<="111111"endcase;else. word.zl-smgzf<="0000001"输入密码在数码管显示“if(kwei=1)thensmgcatout<="111110"elsif(kwei=2)th

44、ensmgcatout<="111100"elsif(kwei=3)thensmgcatout<="111000"elsif(kwei=4)thensmgcatout<="110000"elsesmgcatout<="1111H"endif;endif;endprocess;process(m1七段数码管真值表begincasemliswhen0=>m1y<="1111110"when1=>m1y<="0110000"when2

45、=>m1y<="1101101"when3=>m1y<="1111001"when4=>m1y<="0110011when5=>m1y<="1011011"when6=>m1y<="1011111"when7=>m1y<="1110000"when8=>m1y<="1111111"when9=>m1y<="1111011"whenothers=>

46、m1y<="0000000"endcase;endprocess;process(m2)begincasem2iswhen0=>m2y<="1111110"when1=>m2y<="0110000"when2=>m2y<="1101101when3=>m2y<="1111001"when4=>m2y<="0110011when5=>m2y<="1011011"when6=>m2y<=&q

47、uot;1011111"when7=>m2y<="1110000"when8=>m2y<="1111111"when9=>m2y<="1111011"whenothers=>m2y<="0000000"endcase;endprocess;process(m3)begincasem3iswhen0=>m3y<="1111110"when1=>m3y<="0110000"when2=>m3y

48、<="1101101"when3=>m3y<="1111001"when4=>m3y<="0110011"when5=>m3y<="1011011"when6=>m3y<="1011111"when7=>m3y<="1110000"when8=>m3y<="1111111"when9=>m3y<="1111011"whenothers=>m3

49、y<="0000000"endcase;endprocess;process(m4)begincasem4iswhen0=>m4y<="1111110"when1=>m4y<="0110000"when2=>m4y<="1101101"when3=>m4y<="1111001"when4=>m4y<="0110011"when5=>m4y<="1011011"when6=>

50、m4y<="1011111"when7=>m4y<="1110000"when8=>m4y<="1111111"when9=>m4y<="1111011"whenothers=>m4y<="0000000"endcase;endprocess;end;点阵libraryieee;useieee.std_logic_1164.all;useieee.std_logic_unsigned.all;entitydzisport(clk:instd_

51、logic;-1000hzclkout3lockmode:instd_logic;dzrow,dzcolr,dzcolg:outstd_logic_vector(7downto0);enddz;architecturebehaveofdzissignaldzcat:integerrange0to7;beginprocess(clk)计数器输出dzcat用于行扫描beginif(clk'eventandclk='1')thenif(dzcat=7)thendzcat<=0;elsedzcat<=dzcat+1;endif;endif;endprocess;pr

52、ocess(lockmode,clk)beginif(lockmode='1')then点阵显示闭锁图形casedzcatiswhen0=>dzrow<="01111111"dzcolr<="00000000"dzcolg<="00011000"when1=>dzrow<="10111111"dzcolr<="00000000"dzcolg<="00100100"when2=>dzrow<="

53、;11011111"dzcolr<="00000000"dzcolg<="00100100"when3=>dzrow<="11101111"dzcolr<="00000000"dzcolg<="01111110"when4=>dzrow<="11110111"dzcolr<="00000000"dzcolg<="01111110"when5=>dzrow<

54、="11111011"dzcolr<="00000000"dzcolg<="01111110"when6=>dzrow<="11111101"dzcolr<="00000000"dzcolg<="01111110"when7=>dzrow<="11111110"dzcolr<="00000000"dzcolg<="00000000"endcase;else点

55、阵显示开锁图形casedzcatiswhen0=>dzrow<="01111111"dzcolr<="00000110"dzcolg<="00000000"when1=>dzrow<="10111111"dzcolr<="00001001"dzcolg<="00000000"when2=>dzrow<="11011111"dzcolr<="00001001"dzcolg&

56、lt;="00000000"when3=>dzrow<="11101111"dzcolr<="11111100"dzcolg<="00000000"when4=>dzrow<="11110111"dzcolr<="11111100"dzcolg<="00000000"when5=>dzrow<="11111011"dzcolr<="11111100"d

57、zcolg<="00000000"when6=>dzrow<="11111101"dzcolr<="11111100"dzcolg<="00000000"when7=>dzrow<="11111110"dzcolr<="00000000"dzcolg<="00000000"endcase;endif;endprocess;end;蜂鸣报警libraryieee;useieee.std_logic_1164.all;useieee.std_logic_u