EDA课程设计报告-智力竞赛抢答器

EDA课程设计专业：电信班级：06级姓名：学号：2006103201VHDL语言（智力竞赛抢答器）1、锁存器；LIBRARYIEEE;USEIEEE.STD_LOGIC_1164.ALL;ENTITYDFF1ISPORT(RST,EN:INSTD_LOGIC;G1,G2,G3,G4,G5,G6,G7,G8:INSTD_LOGIC;Q1,Q2,Q3,Q4,Q5,Q6,Q7,Q8:OUTSTD_LOGIC);ENDDFF1;ARCHITECTUREbhvOFDFF1ISBEGINPROCESS(RST,EN)BEGINIFRST='1'THENQ1<='1';Q2<='1';Q3<='1';Q4<='1';Q5<='1';Q6<='1';Q7<='1';Q8<='1';ELSIFEN='1'THENQ1<=G1;Q2<=G2;Q3<=G3;Q4<=G4;Q5<=G5;Q6<=G6;Q7<=G7;Q8<=G8;ENDIF;ENDPROCESS;ENDbhv;2、与非门；LIBRARYIEEE;USEIEEE.STD_LOGIC_1164.ALL;ENTITYDECL7SISPORT(A:INSTD_LOGIC_VECTOR(3DOWNTO0);LED7S:OUTSTD_LOGIC_VECTOR(6DOWNTO0));END;ARCHITECTUREoneOFDECL7SISBEGINPROCESS(A)BEGINCASEAIS WHEN"0000"=>LED7S<="0111111"; WHEN"0001"=>LED7S<="0000110"; WHEN"0010"=>LED7S<="1011011";WHEN"0011"=>LED7S<="1001111";WHEN"0100"=>LED7S<="1100110";WHEN"0101"=>LED7S<="1101101";WHEN"0110"=>LED7S<="1111101";WHEN"0111"=>LED7S<="0000111";WHEN"1000"=>LED7S<="1111111";WHENOTHERS=>NULL;ENDCASE;ENDPROCESS;END;3、译码器；LIBRARYIEEE;USEIEEE.STD_LOGIC_1164.ALL;ENTITYBIANMAISPORT(Q1,Q2,Q3,Q4,Q5,Q6,Q7,Q8:INSTD_LOGIC;CQ:OUTSTD_LOGIC_VECTOR(3DOWNTO0));END;ARCHITECTUREoneOFBIANMAISBEGINPROCESS(Q1,Q2,Q3,Q4,Q5,Q6,Q7,Q8)BEGIN IFQ1='1'ANDQ2='1'ANDQ3='1'ANDQ4='1'ANDQ5='1'ANDQ6='1'ANDQ7='1'ANDQ8='1'THENCQ<="0000"; ELSIFQ1='0'THENCQ<="0001"; ELSIFQ2='0'THENCQ<="0010";ELSIFQ3='0'THENCQ<="0011";ELSIFQ4='0'THENCQ<="0100";ELSIFQ5='0'THENCQ<="0101";ELSIFQ6='0'THENCQ<="0110";ELSIFQ7='0'THENCQ<="0111";ELSIFQ8='0'THENCQ<="1000";ENDIF;ENDPROCESS;END;仿真图设计思想1、电路功能：可满足8个组，同时参加竞赛。抢答器复位后，数码显示为0，在竞赛主持人出完题并示意抢答开始后，每个组都可以通过各自的按钮开关发出抢答信号，抢答器一旦接收到某组最先发出的信号后，立即让数码管显出该组的组号，同时发出音响提示，且对后来组发出的抢答信号一律不与理睬