基于FPGA技术的多人抢答器

#ifrst=，0，thenalmV'O';elsifstop=T'thenalm<='0';elsifta=0andtb=0thenalm<=clk;elsifwarn=T'thenalm<=clk;elsealm<='0';endif;endprocess;end;4.3.4七段译码器模块VHDL源程序LIBRARYIEEE;USEIEEE.STD_LOGIC_1164.ALL;ENTITYYMQISPORT(bcd:INSTD_LOGIC_VECTOR(3DOWNTO0);dout:OUTSTD_LOGIC_VECTOR(6DOWNTO0));ENDYMQ;ARCHITECTURErtlOFYMQISBEGINPROCESS(bcd)BEGINCASEbcdISWHEN"0000"=>dout<="1000000";WHEN"0001"=>dout<="1111001";WHEN"0010"=>dout<="0100100";WHEN"0011"=>dout<="0110000";WHEN"0100"=>dout<="0011001";WHEN"0101"=>dout<="0010010";WHEN"0110"=>dout<="0000010";WHEN"0111"=>dout<="1111000";WHEN"1000"=>dout<="0000000";WHEN"1001"=>dout<="0010000";WHENOTHERS=>dout<="1111111";ENDCASE;ENDPROCESS;ENDrtl;（用500HZ的时钟和1HZ的计数时钟）1.Div100libraryieee;useieee.std_logic_1164.all;entitydiv100isport(clk:instd_logic;clk100:outstd_logic);enddiv100;architectureartofdiv100issignalnum:integerrange0to99;signaltemp:std_logic;beginprocess(clk)beginifclk'eventandelk=T'thenifnum=99thennum<=0;temp<=nottemp;elsenum<=num+1;endif;clk100<=temp;endif;endprocess;endart;2.DIV50M:这是一个50M分频，将50MHZ的信号分为1HZ。LIBRARYIEEE;USEIEEE.STD_LOGIC_1164.ALL;USEIEEE.STD_LOGIC_ARITH.ALL;USEIEEE.STD_LOGIC_UNSIGNED.ALL;ENTITYfenpinISPORT(clk:INSTD_LOGIC;clk50:OUTSTD_LOGIC);ENDfenpin;ARCHITECTURErtlOFfenpinISSIGNALcount:STD_LOGIC_VECTOR(25DOWNTO0);BEGINPROCESS(clk)BEGINIF(clk'eventANDelk二T')THEN

IF(count=〃1O11111O1O1111OOOO1OOOOOOO〃)THENCount<=/z00000000000000000000000000/z;ELSECount<=count+1:ENDIF;ENDIF;ENDPROCESS:PROCESS(elk)BEGINIF(elk5eventANDclk=1')THENIF(count=〃10111110101111000010000000〃)THENclk50<=5r;ELSEclk50V'O';ENDIF;ENDIF;ENDPROCESS:END;4.3.6顶层文件1.仿真图:MWerTineBai;3E3.Wns In冋吋3板四nsStartEnd;Yalus17.«0牌10.24us叩席p珂成四虬96口 51,2口Gl.llns门册监81,成沔 驱,16四x I I I I I I I I I1任n:/0didil■an1—11 ■nw11!iiiiiiiiiiii—■ram11 I1miiiimii1!L1 11IIII11■11■■■■111nil!■1un11I111I1I11Hii1i1ii1iiii■:11irin11—11 111 111 11uuiiniHin：!i■i iiiiii11i—iwimiii<!!i iii1II111D'lii1FI■111111111111 11111IIII111112/nuuunuOo-I■"?6yas3start5tap3ti3tt0LEDQH1WsmlIlliJI—1I-IlliIlliIlli—1Illi.Illi1 1 1 1 11 1 1 1 11 1 1 1 1—1 1 11 1 11 1 1—i i i i i■ i i i ii i i i i—iii 1111111 11111 i 11 iii 1111i■■I 1111111 11 111 i 11 iii 11111iii 1111111 11 111 i 11 iii 1111 i—iii■iiiii—iiIiiiIiiiiiiiiiiiIiiiIi—UiIlliIlliIlli1 1 1 1 1 11 1 1 1 1 11 1 1 1 1 11 1 11 11 1 111III 1 1 1 11 1 1 1 1III11 111 11 11 111 1 1 1 III11 11 11 1 1IIII11 1 1 1111UI IlliIlli1 1 1 1 1 11 1 1 1 1 11 1 11 11 1 11 11 1 1 1 1 1 1 III1 1 1 1 1 1 1 III1 1 1 1 1 111 11 11 11 11 11 11 11 1_11 11 11 11 111 11IIIIIII11 11111 11 11 1—1 1 11111111 1 1 1 11 1 1 1 11 1 1 1 11 1 11 1 11 1 1ui:1 11Illi011111111v1 !!::日T寸& 1：510iiii- jr-qI i F'■ ' 7Illi2'1111.局■i1111 v111 1111111 1ll11111 1111111 11111I1n1ii11/~j~1U顷一IillIiLij、1VA♦i■i111iin11«iUiii111 1UI旷ii i i1 1L||Ei i ii i i11111■i111iiviiiiiii■ii111 1心■miimiii 11111■i 111■11 iiiiiii i i i i i i i i i i i i i i i iii i i i i iiii i i i i i i i i i i i i i i i iii i i i i iiii i i i i i i i i i i i i i ii i i i iii i i i i i iiii■iiiiii1 1 1 1 1 1 1 11 1 1 1 1 1 1 11 1 1 1 1 1 1 1 12.QDQ_1主电路图连线JS -M tail..-3]r=t 1b咨..列—sts^i:—CIDSir-r-r-r-Lr-r-T-r-Lr-r-T-r-rr-r-r-r-r/.■■5i?r^jyir3.顶层电路S'PINN26s2PINP25s3PINAE14 〉INPUT■—、'Vcc 'inPUtI)Vcc厂INPUTI—、'Vcc ‘inPUtvccrst=-INPUTPINAF14digdivlOOdiVOOclkclk10clkclk100clkclk100inst1inst7inst2cDQ1 rstNUM[3..0s0LED[3..0s1 souncs2 ta[3.O.s3 tb[3..0]clkclk1startstopinstYMQbcd[3..0]dout[6..0]OUTPUT *num[6..0]clkinst4lOUTPUT led[3..0]PINV13PINV14PINA匚11PIN_AD11PIN_AC12pin_ab〔2PINAF1fenpinclkclk50inst3PIN_N2INPUTVCCOUTPUTsoundPIN_AC22PIN_AB21PIN_AF23PINkg startPIN_AD13stopPIN~Ad3' —INPUTI —vcc- INPUTVCCYMQbcd[3..0]dout[6..0]YMCbcd[3..0]dout[6..0]inst6 ’OUTPUT^='ta[6..0]OUTPUTtb[6..0]PINY24PIN_AB25PIN_AB26PIN_AC26PIN_AC25PINV22PIN_AB23PINW24PINU22PINY25PINY26PIN_AA25PIN_AA25PINY23五、锁定引脚及下载5.1选择锁定引脚，再重新编译一次在编程窗的Mode中选择ActiveSerialprogramming编程模式，打开编程文件，选中QDQ.pof，并选中打钩前3个编程项目，在ED2板上选择PROG模式，然后下载。5.2锁定引脚：时钟信号clkN2发光二极管LEDRO-LEDR3(AE23.AF23.AB21.AC22)数码管num0-num6(AB12.AC12.AD11.AE11.V14.V13)ta0-ta6(AB23.V22.AC25.AC26.AB26.AB25.Y24)tb0-tb6(Y23.AA25.AA26.Y26.Y25.U22.W24)开关rstAF14SW0-SW3(N25.N26.P25.AE14)SOUNDAA14STARTAD13STOPAC13六、总结六、总结总的来说，这次设计的抢答器还是比较成功的，在设计中遇到了一些问题，比如：时钟信号的选取，时间延时问题，计数停止方式等，最后在老师的指导和大家的努力下，终于将设计时间问题处理好，性能有了很大的改进。由于我的知识非常有限，所以在此次毕业设计的过程中遇到了不少困难。在XX老师的悉心指导下终于克服了困难顺利完成任务。X