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ID:45572222
大小:258.87 KB
页数:4页
时间:2019-11-14
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1、NameValue21.531^*0inclkHl勖[+joutaH7帚9[+joutbH设计一个8分频电路libraryieee;useieee.std_logic_1164.all;useieee.std_logic_unsigned.all;entityfpisport(inclk:instd_logic;output:outstcl」ogic);endfp;architecturearch^fpoffpissignalfp:std」ogic_vector(2downto0);signalf:std_logic;beginprocess(inclk)beginif
2、(inclk!eventandinclk=T)theniffp=7thenfp<=,,000,';f<=notf;elsefp<=fp+1;endif;endif;——调用库实体说明-端口说明……构造休说明信号定义・■■…进程语句描述——将时钟分频至1HzNameValue21.53Ips80.0ns160.0ns240.0ns320.0ns400.0ns480.0ns560.0ns21.525nsD^0inclkHi刖nnnmmwinmwiwmmuwwmwuwinjuwi参1FHout包H7厂TE::::30:!:!:!6D!::X:::79::!;^!:参9[±lo
3、utbH厂1:X::::::X•••:::L:t:::8::::X••endprocess;output<=f;endarch_fp;Name杪iinclk・・・utValueat100.0nsH0H1)PE2O・9“40.9“6O・9ns80.Q“100•卩“120•卩“140•卩ns100.0nsJ段码转换模块libraryieee;useieee.std_logic_l164.all;useieee.std_logic_arith.all;useieee.std_logic_unsigned.all;entityledsisport(mb:instd」ogic_v
4、cctor(3downto0);outa:outstd_logic_vector(6downto0));endledsarchitecturesegofymqisbeginwithmbselectouta<=,,1111110Hwhen“0000”,"0110000°when”0001”,"llOllOl"when”0010”,”1111001”when“0011”,"Oil0011"when”0100”,H1011011°when”0101”,^^1011111^^when“0110”,”111()00()“when”0111”,Til1111“when”1000”,
5、”1111011”when“1001”,"OOOOOOO"whenothers;endseg;)PS10-9-2O-9-3O-9ns4O-9ns5O-9ns60.9nsE0ns8O-9nsr~7E!ffl'T6D332XX―st專—5T!706、.all;entityalisport(finstdjogic;outb:outstd_logic_vector(3downto()));endal;architectureailh_alofalis结构体定义signalma:std」ogic_vector(1downto0);signalmb:std_logic_vector(3downto0);扫描输出模块beginprocess(f)beginif(feventandf二T)thenma<=ma+1;mbv二mb+1;endif;endprocess;withmaselectoutb<="0001Hwhen”007、”,M0010Hwhen”01",M0l00HwhenTO';1000whenothers;endarth_al;Nameinclkout包Value21.53HIH73ps80.0ns160.0ns240.0ns320.0ns400.0ns480.0ns560.0ns640.0nsiiiiiiii21?525nsmi^iuuiimiinnuiiiinmiinmiinmiinnuuininiiiuinmuiinnuunnniminiii…3]...2]...1]...0]HHIHiHI3Ps8O-9ns16°卩ns240.卩ns320.0
6、.all;entityalisport(finstdjogic;outb:outstd_logic_vector(3downto()));endal;architectureailh_alofalis结构体定义signalma:std」ogic_vector(1downto0);signalmb:std_logic_vector(3downto0);扫描输出模块beginprocess(f)beginif(feventandf二T)thenma<=ma+1;mbv二mb+1;endif;endprocess;withmaselectoutb<="0001Hwhen”00
7、”,M0010Hwhen”01",M0l00HwhenTO';1000whenothers;endarth_al;Nameinclkout包Value21.53HIH73ps80.0ns160.0ns240.0ns320.0ns400.0ns480.0ns560.0ns640.0nsiiiiiiii21?525nsmi^iuuiimiinnuiiiinmiinmiinmiinnuuininiiiuinmuiinnuunnniminiii…3]...2]...1]...0]HHIHiHI3Ps8O-9ns16°卩ns240.卩ns320.0
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