数字时钟c语言代码.doc

LIBRARY IEEE;USE IEEE.STD_LOGIC_1164.ALL;USE IEEE.STD_LOGIC_UNSIGNED.ALL;ENTITY SECOND1 ISPORT(CLKS,CLR:IN STD_LOGIC; SECS,SESG:OUT STD_LOGIC_VECTOR(3 DOWNTO 0); COUT1:OUT STD_LOGIC);END SECOND1;ARCHITECTURE S OF SECOND1 IS BEGIN PROCESS(CLKS,CLR) VARIABLE SS,SG:STD_LOGIC_VECTOR(3 DOWNTO 0); VARIABLE CO:STD_LOGIC; BEGIN IF CLR=1 THEN SS:=0000;SG:=0000; ELSIF CLKSEVENT AND CLKS=1 THEN IF (SS=0101) AND (SG=1001) THEN SS:=0000;SG:=0000;CO:=1;ELSIF SG1001 THEN SG:=SG+1;CO:=0;ELSIF SG=1001 THEN SG:=0000;SS:=SS+1;CO:=0;END IF;END IF;COUT1=CO;SECS=SS;SESG=SG;END PROCESS;END S;LIBRARY IEEE;USE IEEE.STD_LOGIC_1164.ALL;USE IEEE.STD_LOGIC_UNSIGNED.ALL;ENTITY MIN1 ISPORT(CLKM,CLR:IN STD_LOGIC; MINS,MING:BUFFER STD_LOGIC_VECTOR(3 DOWNTO 0); ENMIN,ALARM:OUT STD_LOGIC);END MIN1;ARCHITECTURE M OF MIN1 IS BEGIN PROCESS(CLKM,CLR) VARIABLE MS,MG:STD_LOGIC_VECTOR(3 DOWNTO 0); VARIABLE SO,ALM:STD_LOGIC; BEGIN IF CLR=1 THEN MS:=0000;MG:=0000; ELSIF CLKMEVENT AND CLKM=1 THEN IF (MS=0101) AND (MG=1001) THEN MS:=0000;MG:=0000;SO:=1;ALM:=1;ELSIF MG1001 THEN MG:=MG+1;SO:=0;ALM:=0;ELSIF MG=1001 THEN MG:=0000;MS:=MS+1;SO:=0;ALM:=0;END IF;END IF;ALARM=ALM;ENMIN=SO;MINS=MS;MING=MG;END PROCESS;END M;LIBRARY IEEE;USE IEEE.STD_LOGIC_1164.ALL;USE IEEE.STD_LOGIC_UNSIGNED.ALL;ENTITY HOUR1 ISPORT(CLKH,CLR:IN STD_LOGIC; HOURS,HOURG:OUT STD_LOGIC_VECTOR(3 DOWNTO 0);END HOUR1;ARCHITECTURE H OF HOUR1 IS BEGIN PROCESS(CLKH,CLR) VARIABLE HS,HG:STD_LOGIC_VECTOR(3 DOWNTO 0); BEGIN IF CLR=1 THEN HS:=0000;HG:=0000; ELSIF CLKHEVENT AND CLKH=1 THEN IF (HS=0010) AND (HG=0011) THEN HS:=0000;HG:=0000;ELSIF HG1001 THEN HG:=HG+1;ELSIF HG=1001 THEN HG:=0000;HS:=HS+1;END IF;END IF;HOURS=HS;HOURG=HG;END PROCESS;END H;LIBRARY IEEE;USE IEEE.STD_LOGIC_1164.ALL;USE IEEE.STD_LOGIC_UNSIGNED.ALL;ENTITY JIAOFEN ISPORT(EN,CLK,SECIN,M1:IN STD_LOGIC; MINSET:OUT STD_LOGIC);END JIAOFEN;ARCHITECTURE F OF JIAOFEN IS BEGIN PROCESS(EN,M1) BEGIN IF EN=1 THEN IF M1=1 THEN MINSET=CLK;ELSE MINSET=SECIN;END IF;ELSE MINSET=SECIN;END IF;END PROCESS;END F;LIBRARY IEEE;USE IEEE.STD_LOGIC_1164.ALL;USE IEEE.STD_LOGIC_UNSIGNED.ALL;ENTITY JIAOSHI ISPORT(EN,CLK,MININ,H1:IN STD_LOGIC; HOURSET:OUT STD_LOGIC);END JIAOSHI;ARCHITECTURE J OF JIAOSHI IS BEGIN PROCESS(EN,H1) BEGIN IF EN=1 THEN IF H1=1 THEN HOURSET=CLK;ELSE HOURSET=MININ;END IF;HOURSETCLR,SECS=SECS,SESG=SESG,CLKS=CLK,COUT1=A);U2:MIN1 PORT MAP(CLR=CLR,ALARM=ALARM,MINS=MINS,MING=MING,CLKM=B,ENMIN=C);U3:HOUR1 PORT MAP(CLR=CLR,HOURS=HOURS,HOURG=HOURG,CLKH=D);U4:JIAOFEN PORT MAP(EN=EN,M1=M1,CLK=CLK,SECIN=A,MINSET=B); U5:JIAOSHI PORT MAP(EN=EN,H1=H1,CLK=CLK,MININ=C,HOURSET=d);PROCESS(CLKS,CLK) BEGIN IF CLKSEVENT AND CLKS=1 THEN IF (SECS=0000)AND(SESG=0000)AND(MINS=0000)AND(MING=0000) THEN BAO=CLK ; ELSE BAO=0;END IF; END IF;END PROCESS;end one;LIBRARY IEEE;USE IEEE.STD_LOGIC_1164.ALL;USE IEEE.STD_LOGIC_UNSIGNED.ALL;ENTITY JIAOMIAO ISPORT(EN,CLK,O1:IN STD_LOGIC; MIAOSET:OUT