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1、實(shí)用標(biāo)準(zhǔn)文案十五計(jì)數(shù)器libraryieee;use ieee.std_logic_1164.all;use ieee.std_logic_unsigned.all;ENTITYfiveteencoutISPORT(clk,reset,enable: INstd_logic;count: OUT std_logic_vector(3downto0);ENDfiveteencout;ARCHITECTUREcounterOF fiveteencoutISSIGNALcount_int:std_logic_vector(0to3);BEGINPROCESS(clk,reset)BEGINWAITU
2、NTILrising_edge(clk);IF reset= '1'THENcount_int<=(OTHERS =>'0');ELSIF enable='1'THENIF(count_int="1110")THENcount_int<="0000"ELSEcount_int<=count_int1;文檔大全實(shí)用標(biāo)準(zhǔn)文案-ELSE-NULL;-IF(count_int="1001")THEN-count_int<="0000"ENDIF;
3、ENDIF;ENDPROCESS;count<=count_int;- IF (reset='0') then -q<="0000"-ELSIF(clk'event and clk='1') THEN -q<=q 1;-IF (q<="1001") then -q<="0000"-END IF;-IF (reset<='1')THEN -q<="00"-ELSIF-wait until (clk'event a
4、nd clk='1');-WAIT UNTIL (clk'EVENT AND clk = '1');-WAITUNTIL(clock'EVENTANDclock='1');-q<=q'1'文檔大全實(shí)用標(biāo)準(zhǔn)文案-endif;-count<=q;-WAIT UNTILclock='1'-if(clock'eventandclock='1')then-WAITUNTILrising_edge(clock);-clock'eventandclock='1&
5、#39;-count<=0;-WAITUNTIL(clock'EVENTANDclock='1');-WAITriseedgeclock= '1'-if(clock'eventandclock='1') then-WAITUNTILrising_edge(clock);-count<=1;-WAITUNTIL(clock'EVENTANDclock='1');-WAITUNTILclock='1'-if(clock'eventandclock='1')th
6、en-WAITUNTILrising_edge(clock);-count<=2;-endif;-endif;-endif;- END PROCESS; END counter;文檔大全實(shí)用標(biāo)準(zhǔn)文案十四計(jì)數(shù)器libraryieee;use ieee.std_logic_1164.all;use ieee.std_logic_unsigned.all;ENTITYfourteencoutISPORT(clk,reset,enable: INstd_logic;count: OUT std_logic_vector(3downto0);ENDfourteencout;ARCHITECTURE
7、counterOF fourteencoutISSIGNALcount_int:std_logic_vector(0to3);BEGINPROCESS(clk,reset)BEGINWAITUNTILrising_edge(clk);IF reset= '1'THENcount_int<=(OTHERS =>'0');ELSIF enable='1'THENIF(count_int="1101")THENcount_int<="0000"ELSEcount_int<=count_in
8、t1;文檔大全實(shí)用標(biāo)準(zhǔn)文案-ELSE-NULL;-IF(count_int="1001")THEN-count_int<="0000"ENDIF;ENDIF;ENDPROCESS;count<=count_int;- IF (reset='0') then -q<="0000"-ELSIF(clk'event and clk='1') THEN -q<=q 1;-IF (q<="1001") then -q<="0000"
9、;-END IF;-IF (reset<='1')THEN -q<="00"-ELSIF-wait until (clk'event and clk='1');-WAIT UNTIL (clk'EVENT AND clk = '1');-WAITUNTIL(clock'EVENTANDclock='1');-q<=q'1'文檔大全實(shí)用標(biāo)準(zhǔn)文案-endif;-count<=q;-WAIT UNTILclock='1'-if(clock
10、'eventandclock='1')then-WAITUNTILrising_edge(clock);-clock'eventandclock='1'-count<=0;-WAITUNTIL(clock'EVENTANDclock='1');-WAITriseedgeclock= '1'-if(clock'eventandclock='1') then-WAITUNTILrising_edge(clock);-count<=1;-WAITUNTIL(clock'
11、EVENTANDclock='1');-WAITUNTILclock='1'-if(clock'eventandclock='1')then-WAITUNTILrising_edge(clock);-count<=2;-endif;-endif;-endif;- END PROCESS; END counter;文檔大全實(shí)用標(biāo)準(zhǔn)文案十三計(jì)數(shù)器libraryieee;use ieee.std_logic_1164.all;use ieee.std_logic_unsigned.all;ENTITYthireteencoutISPORT
12、(clk,reset,enable: IN std_logic;count: OUT std_logic_vector(3 downto 0);END thireteencout;ARCHITECTURE counter OF thireteencoutISSIGNALcount_int:std_logic_vector(0to 3);BEGINPROCESS(clk,reset)BEGINWAITUNTILrising_edge(clk);IF reset= '1'THENcount_int<=(OTHERS =>'0');ELSIF enable
13、='1'THENIF(count_int="1100")THENcount_int<="0000"ELSEcount_int<=count_int1;文檔大全實(shí)用標(biāo)準(zhǔn)文案-ELSE-NULL;-IF(count_int="1001")THEN-count_int<="0000"ENDIF;ENDIF;ENDPROCESS;count<=count_int;- IF (reset='0') then -q<="0000"-ELSIF(c
14、lk'event and clk='1') THEN -q<=q 1;-IF (q<="1001") then -q<="0000"-END IF;-IF (reset<='1')THEN -q<="00"-ELSIF-wait until (clk'event and clk='1');-WAIT UNTIL (clk'EVENT AND clk = '1');-WAITUNTIL(clock'EVENTAN
15、Dclock='1');-q<=q'1'文檔大全實(shí)用標(biāo)準(zhǔn)文案-endif;-count<=q;-WAIT UNTILclock='1'-if(clock'eventandclock='1')then-WAITUNTILrising_edge(clock);-clock'eventandclock='1'-count<=0;-WAITUNTIL(clock'EVENTANDclock='1');-WAITriseedgeclock= '1'-i
16、f(clock'eventandclock='1') then-WAITUNTILrising_edge(clock);-count<=1;-WAITUNTIL(clock'EVENTANDclock='1');-WAITUNTILclock='1'-if(clock'eventandclock='1')then-WAITUNTILrising_edge(clock);-count<=2;-endif;-endif;-endif;- END PROCESS; END counter;文檔大全實(shí)用
17、標(biāo)準(zhǔn)文案十二計(jì)數(shù)器libraryieee;use ieee.std_logic_1164.all;use ieee.std_logic_unsigned.all;ENTITYtwelvecoutISPORT(clk,reset,enable: INstd_logic;count: OUT std_logic_vector(3downto0);ENDtwelvecout;ARCHITECTUREcounterOF twelvecoutISSIGNALcount_int:std_logic_vector(0to3);BEGINPROCESS(clk,reset)BEGINWAITUNTILrisi
18、ng_edge(clk);IF reset= '1'THENcount_int<=(OTHERS =>'0');ELSIF enable='1'THENIF(count_int="1011")THENcount_int<="0000"ELSEcount_int<=count_int1;文檔大全實(shí)用標(biāo)準(zhǔn)文案-ELSE-NULL;-IF(count_int="1001")THEN-count_int<="0000"ENDIF;ENDIF;EN
19、DPROCESS;count<=count_int;- IF (reset='0') then -q<="0000"-ELSIF(clk'event and clk='1') THEN -q<=q 1;-IF (q<="1001") then -q<="0000"-END IF;-IF (reset<='1')THEN -q<="00"-ELSIF-wait until (clk'event and clk=&
20、#39;1');-WAIT UNTIL (clk'EVENT AND clk = '1');-WAITUNTIL(clock'EVENTANDclock='1');-q<=q'1'文檔大全實(shí)用標(biāo)準(zhǔn)文案-endif;-count<=q;-WAIT UNTILclock='1'-if(clock'eventandclock='1')then-WAITUNTILrising_edge(clock);-clock'eventandclock='1'-cou
21、nt<=0;-WAITUNTIL(clock'EVENTANDclock='1');-WAITriseedgeclock= '1'-if(clock'eventandclock='1') then-WAITUNTILrising_edge(clock);-count<=1;-WAITUNTIL(clock'EVENTANDclock='1');-WAITUNTILclock='1'-if(clock'eventandclock='1')then-WAITU
22、NTILrising_edge(clock);-count<=2;-endif;-endif;-endif;- END PROCESS; END counter;文檔大全實(shí)用標(biāo)準(zhǔn)文案十一計(jì)數(shù)器libraryieee;use ieee.std_logic_1164.all;use ieee.std_logic_unsigned.all;ENTITYelevencoutISPORT(clk,reset,enable: INstd_logic;count: OUT std_logic_vector(3downto0);ENDelevencout;ARCHITECTUREcounterOF el
23、evencoutISSIGNALcount_int:std_logic_vector(0to3);BEGINPROCESS(clk,reset)BEGINWAITUNTILrising_edge(clk);IF reset='1'THENcount_int<=(OTHERS =>'0');ELSIF enable='1'THENIF(count_int="1010")THENcount_int<="0000"ELSEcount_int<=count_int1;文檔大全實(shí)用標(biāo)準(zhǔn)文案-E
24、LSE-NULL;-IF(count_int="1001")THEN-count_int<="0000"ENDIF;ENDIF;ENDPROCESS;count<=count_int;- IF (reset='0') then -q<="0000"-ELSIF(clk'event and clk='1') THEN -q<=q 1;-IF (q<="1001") then -q<="0000"-END IF;-IF (r
25、eset<='1')THEN -q<="00"-ELSIF-wait until (clk'event and clk='1');-WAIT UNTIL (clk'EVENT AND clk = '1');-WAITUNTIL(clock'EVENTANDclock='1');-q<=q'1'文檔大全實(shí)用標(biāo)準(zhǔn)文案-endif;-count<=q;-WAIT UNTILclock='1'-if(clock'eventandcl
26、ock='1')then-WAITUNTILrising_edge(clock);-clock'eventandclock='1'-count<=0;-WAITUNTIL(clock'EVENTANDclock='1');-WAITriseedgeclock= '1'-if(clock'eventandclock='1') then-WAITUNTILrising_edge(clock);-count<=1;-WAITUNTIL(clock'EVENTANDclock=&
27、#39;1');-WAITUNTILclock='1'-if(clock'eventandclock='1')then-WAITUNTILrising_edge(clock);-count<=2;-endif;-endif;-endif;- END PROCESS; END counter;文檔大全實(shí)用標(biāo)準(zhǔn)文案十計(jì)數(shù)器libraryieee;use ieee.std_logic_1164.all;use ieee.std_logic_unsigned.all;ENTITYcountISPORT(clk,reset,enable: INstd
28、_logic;count:OUT std_logic_vector(3downto 0);END count;ARCHITECTURE counterOF countISSIGNAL count_int:std_logic_vector(0to 3);BEGINPROCESS(clk,reset)BEGINWAIT UNTIL rising_edge(clk);IF reset= '1'THENcount_int<=(OTHERS=> '0');ELSIF enable= '1'THENIF(count_int="1001&
29、quot;)THENcount_int<="0000"文檔大全實(shí)用標(biāo)準(zhǔn)文案ELSEcount_int<= count_int1;-ELSE- NULL;-IF (count_int="1001")THEN-count_int<="0000"ENDIF;ENDIF;ENDPROCESS;count<=count_int;- IF (reset='0') then -q<="0000"-ELSIF(clk'event and clk='1') THE
30、N -q<=q 1;-IF (q<="1001") then -q<="0000"-END IF;-IF (reset<='1')THEN -q<="00"-ELSIF-wait until (clk'event and clk='1');-WAIT UNTIL (clk'EVENT AND clk = '1');文檔大全實(shí)用標(biāo)準(zhǔn)文案-WAITUNTIL(clock'EVENTANDclock='1');- q<
31、=q '1' -end if; -count<=q;- WAIT UNTIL clock = '1'-if(clock'eventandclock='1')then-WAITUNTILrising_edge(clock);-clock'eventandclock='1'-count<=0;-WAITUNTIL(clock'EVENTANDclock='1');-WAITriseedgeclock= '1'-if(clock'eventandclock=&#
32、39;1') then-WAITUNTILrising_edge(clock);-count<=1;-WAITUNTIL(clock'EVENTANDclock='1');-WAITUNTILclock='1'-if(clock'eventandclock='1')then-WAITUNTILrising_edge(clock);-count<=2;-endif;-endif;-endif;文檔大全實(shí)用標(biāo)準(zhǔn)文案- END PROCESS; END counter;九計(jì)數(shù)器libraryieee;use ieee
33、.std_logic_1164.all;use ieee.std_logic_unsigned.all;ENTITYninecoutISPORT(clk,reset,enable: INstd_logic;count: OUT std_logic_vector(3downto0);ENDninecout;ARCHITECTUREcounterOF ninecoutISSIGNALcount_int:std_logic_vector(0to3);BEGINPROCESS(clk,reset)BEGINWAITUNTILrising_edge(clk);IF reset= '1'T
34、HENcount_int<=(OTHERS =>'0');ELSIF enable='1'THENIF(count_int="1000")THENcount_int<="0000"文檔大全實(shí)用標(biāo)準(zhǔn)文案ELSEcount_int<= count_int1;-ELSE- NULL;-IF (count_int="1001")THEN-count_int<="0000"ENDIF;ENDIF;ENDPROCESS;count<=count_int;- I
35、F (reset='0') then -q<="0000"-ELSIF(clk'event and clk='1') THEN -q<=q 1;-IF (q<="1001") then -q<="0000"-END IF;-IF (reset<='1')THEN -q<="00"-ELSIF-wait until (clk'event and clk='1');-WAIT UNTIL (clk'
36、;EVENT AND clk = '1');文檔大全實(shí)用標(biāo)準(zhǔn)文案-WAITUNTIL(clock'EVENTANDclock='1');- q<=q '1' -end if; -count<=q;- WAIT UNTIL clock = '1'-if(clock'eventandclock='1')then-WAITUNTILrising_edge(clock);-clock'eventandclock='1'-count<=0;-WAITUNTIL(clo
37、ck'EVENTANDclock='1');-WAITriseedgeclock= '1'-if(clock'eventandclock='1') then-WAITUNTILrising_edge(clock);-count<=1;-WAITUNTIL(clock'EVENTANDclock='1');-WAITUNTILclock='1'-if(clock'eventandclock='1')then-WAITUNTILrising_edge(clock);
38、-count<=2;-endif;-endif;-endif;文檔大全實(shí)用標(biāo)準(zhǔn)文案- END PROCESS; END counter;八計(jì)數(shù)器libraryieee;use ieee.std_logic_1164.all;use ieee.std_logic_unsigned.all;ENTITYeightcoutISPORT(clk,reset,enable: INstd_logic;count: OUT std_logic_vector(2downto0);ENDeightcout;ARCHITECTUREcounterOF eightcoutISSIGNALcount_int:s
39、td_logic_vector(0to2);BEGINPROCESS(clk,reset)BEGINWAITUNTILrising_edge(clk);IF reset= '1'THENcount_int<=(OTHERS =>'0');ELSIF enable='1'THENIF(count_int="111")THENcount_int<="000"文檔大全實(shí)用標(biāo)準(zhǔn)文案ELSEcount_int<= count_int1;-ELSE- NULL;-IF (count_int=&q
40、uot;1001")THEN-count_int<="0000"ENDIF;ENDIF;ENDPROCESS;count<=count_int;- IF (reset='0') then -q<="0000"-ELSIF(clk'event and clk='1') THEN -q<=q 1;-IF (q<="1001") then -q<="0000"-END IF;-IF (reset<='1')THEN
41、 -q<="00"-ELSIF-wait until (clk'event and clk='1');-WAIT UNTIL (clk'EVENT AND clk = '1');文檔大全實(shí)用標(biāo)準(zhǔn)文案-WAITUNTIL(clock'EVENTANDclock='1');- q<=q '1' -end if; -count<=q;- WAIT UNTIL clock = '1'-if(clock'eventandclock='1')
42、then-WAITUNTILrising_edge(clock);-clock'eventandclock='1'-count<=0;-WAITUNTIL(clock'EVENTANDclock='1');-WAITriseedgeclock= '1'-if(clock'eventandclock='1') then-WAITUNTILrising_edge(clock);-count<=1;-WAITUNTIL(clock'EVENTANDclock='1');-WAI
43、TUNTILclock='1'-if(clock'eventandclock='1')then-WAITUNTILrising_edge(clock);-count<=2;-endif;-endif;-endif;文檔大全實(shí)用標(biāo)準(zhǔn)文案- END PROCESS; END counter;六計(jì)數(shù)器libraryieee;use ieee.std_logic_1164.all;use ieee.std_logic_unsigned.all;ENTITYsixcoutISPORT(clk,reset,enable: IN std_logic;count
44、: OUT std_logic_vector(2 downto 0);ENDsixcout;ARCHITECTUREcounterOFsixcoutISSIGNALcount_int:std_logic_vector(0to 2);BEGINPROCESS(clk,reset)BEGINWAIT UNTIL rising_edge(clk);IF reset= '1'THENcount_int<=(OTHERS=>'0');ELSIF enable='1'THEN文檔大全實(shí)用標(biāo)準(zhǔn)文案IF(count_int="101&quo
45、t;)THENcount_int<="000"ELSEcount_int<= count_int1;-ELSE- NULL;-IF(count_int="1001")THEN-count_int<="0000"ENDIF;ENDIF;ENDPROCESS;count <= count_int;- IF(reset='0')then-q<="0000"-ELSIF(clk'eventandclk='1') THEN-q<=q1;-IF(q&l
46、t;="1001")then-q<="0000"-ENDIF;-IF(reset<='1')THEN-q<="00"-ELSIF文檔大全實(shí)用標(biāo)準(zhǔn)文案-waituntil(clk'eventandclk='1');-WAITUNTIL(clk'EVENTANDclk='1');-WAITUNTIL(clock'EVENTANDclock='1');- q<=q '1' -end if; -count<=q
47、;- WAIT UNTIL clock = '1'-if(clock'eventandclock='1')then-WAITUNTILrising_edge(clock);-clock'eventandclock='1'-count<=0;-WAITUNTIL(clock'EVENTANDclock='1');-WAITriseedgeclock= '1'-if(clock'eventandclock='1') then-WAITUNTILrising_edge(clock);-count<=1;-WAITUNTIL(clock'EVENTAND
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