EDA序列检测器的设计_实验报告.doc

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1、一、实验代码：LIBRARYIEEE;USEIEEE.STD_LOGIC_1164.ALL;ENTITYCHKISPORT(DIN:INSTD_LOGIC;CLK,CLR:INSTD_LOGIC;D:INSTD_LOGIC_VECTOR(7DOWNTO0);AB:OUTSTD_LOGIC_VECTOR(3DOWNTO0));ENDCHK;ARCHITECTUREARTOFCHKISSIGNALQ:INTEGERRANGE0TO8;BEGINPROCESS(CLK,CLR)BEGINIFCLR='1'THENQ<=0;ELSIFCLK'EVENTA

2、NDCLK='1'THENCASEQISWHEN0=>IFDIN=D(7)THENQ<=1;ELSEQ<=0;ENDIF;WHEN1=>IFDIN=D(6)THENQ<=2;ELSEQ<=0;ENDIF;WHEN2=>IFDIN=D(5)THENQ<=3;ELSEQ<=0;ENDIF;WHEN3=>IFDIN=D(4)THENQ<=4;ELSEQ<=0;ENDIF;WHEN4=>IFDIN=D(3)THENQ<=5;ELSEQ<=0;ENDIF;WHEN5=>IFDIN=D(2)THENQ<=6;ELSEQ<=0;ENDIF;WHEN6=>IFD

3、IN=D(1)THENQ<=7;ELSEQ<=0;ENDIF;WHEN7=>IFDIN=D(0)THENQ<=8;ELSEQ<=0;ENDIF;WHENOTHERS=>Q<=0;ENDCASE;ENDIF;ENDPROCESS;PROCESS(Q)BEGINIFQ=8THENAB<="1010";ELSEAB<="1011";ENDcase;ENDIF;ENDPROCESS;ENDbehave;一、实验结果：