数电实验实验报告(Quartus)数码管循环显示.doc

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1、实验101、结果：同时显示代码：LIBRARYIEEE;USEIEEE.STD_LOGIC_1164.ALL;ENTITYsweepISPORT(clk,clr:INSTD_LOGIC;--clk输入时钟；clr状态清零a:OUTSTD_LOGIC_VECTOR(6DOWNTO0);--输出数码管相同段sweep:OUTSTD_LOGIC_VECTOR(5DOWNTO0)--输出cat（数码管选通控制信号）端);ENDsweep;ARCHITECTUREsweep_archOFsweepISSIGNALsweep_arc:ST

2、D_LOGIC_VECTOR(5DOWNTO0);--声明内部信号（选通控制信号）SIGNALb:STD_LOGIC_VECTOR(6DOWNTO0);--声明内部信号（相同段信号）BEGINPROCESS(sweep_arc)BEGINIF(clk'eventandclk='1')THENIFclr='0'THEN--状态清零sweep_arc<="";b<="";ELSEcasesweep_arcIS--选通控制信号WHEN""=>sweep_arc<="";WHEN""=>sweep_arc<="";WHEN""=>sw

3、eep_arc<="";WHEN""=>sweep_arc<="";WHEN""=>sweep_arc<="";WHEN""=>sweep_arc<="";WHENOTHERS=>sweep_arc<="";ENDCASE;CASEsweep_arcIS--相同段信号WHEN""=>b<="";WHEN""=>b<="";WHEN""=>b<="";WHEN""=>b<="";WHEN""=>b<="";WHEN""=>b<="";WHENOTHERS=>b<="";ENDCASE;ENDIF;ENDIF;sweep<=swe

4、ep_arc;a<=b;ENDPROCESS;END;仿真：管脚：2、（1）结果：循环显示：——————代码：LIBRARYIEEE;USEIEEE.STD_LOGIC_1164.ALL;USEIEEE.STD_LOGIC_UNSIGNED.ALL;ENTITYsweep2ISPORT(clk:INSTD_LOGIC;--clk输入时钟sweep2:OUTSTD_LOGIC_VECTOR(5DOWNTO0);--输出数码管相同段a:OUTSTD_LOGIC_VECTOR(6DOWNTO0)--输出cat（数码管选通控制信号）端

5、);ENDsweep2;ARCHITECTUREarc_sweep2OFsweep2ISSIGNALnumber:INTEGERRANGE0TO6;--状态声明（6种状态，7种状态值）SIGNALn:INTEGERRANGE0TO6;--声明数码管（6个管，7个值）SIGNALflag:INTEGERRANGE0TO50;--同一状态运行次数BEGINPROCESS(clk)BEGINIF(clk'eventANDclk='1')THENIFn>5THENn<=0;ELSEn<=n+1;flag<=flag+1;ENDIF;I

6、Fflag>20THENflag<=0;number<=number+1;ENDIF;IFnumber>5THENnumber<=0;ENDIF;CASEnumberISWHEN0=>--状态0，输出CASEnISWHEN0=>sweep2<="";a<="";WHEN1=>sweep2<="";a<="";WHEN2=>sweep2<="";a<="";WHEN3=>sweep2<="";a<="";WHEN4=>sweep2<="";a<="";WHEN5=>sweep2<="";a<="";WHENOTHERS=>swe

7、ep2<="";ENDCASE;WHEN1=>----状态1，输出CASEnISWHEN0=>sweep2<="";a<="";WHEN1=>sweep2<="";a<="";WHEN2=>sweep2<="";a<="";WHEN3=>sweep2<="";a<="";WHEN4=>sweep2<="";a<="";WHEN5=>sweep2<="";a<="";WHENOTHERS=>sweep2<="";ENDCASE;WHEN2=>--状态2，输出CASEnISWHEN0=>sweep2<="";a<="";WHEN1

8、=>sweep2<="";a<="";WHEN2=>sweep2<="";a<="";WHEN3=>sweep2<="";a<="";WHEN4=>sweep2<="";a<="";WHEN5=>sweep2<="";a<="";WHENOTHERS=>sweep2<="";