📄 新手求助！！高人请指点hdb3的编解码经典算法！！ - 编解码技术 - 通信与dsp技术 - eda专业论坛 最专业的fpga-ic设计论坛 - powered by discuz!.mht
字号:
<DIV class=3Dpages_btns>
<DIV class=3Dthreadflow><A=20
href=3D"http://www.edacn.net/bbs/redirect.php?fid=3D532&tid=3D5514&am=
p;goto=3Dnextoldset">‹‹=20
=C9=CF=D2=BB=D6=F7=CC=E2</A> | <A=20
href=3D"http://www.edacn.net/bbs/redirect.php?fid=3D532&tid=3D5514&am=
p;goto=3Dnextnewset">=CF=C2=D2=BB=D6=F7=CC=E2=20
››</A></DIV><SPAN class=3Dpostbtn id=3Dnewspecial=20
onmouseover=3D"$('newspecial').id =3D 'newspecialtmp';this.id =3D =
'newspecial';showMenu(this.id)"><A=20
href=3D"http://www.edacn.net/bbs/post.php?action=3Dnewthread&fid=3D53=
2&extra=3Dpage%3D2"><IMG=20
title=3D=B7=A2=D0=C2=BB=B0=CC=E2 alt=3D=B7=A2=D0=C2=BB=B0=CC=E2 =
src=3D"http://www.edacn.net/bbs/images/default/newtopic.gif"=20
border=3D0></A></SPAN> <SPAN class=3Dreplybtn><A=20
href=3D"http://www.edacn.net/bbs/post.php?action=3Dreply&fid=3D532&am=
p;tid=3D5514&extra=3Dpage%3D2"><IMG=20
alt=3D"" src=3D"http://www.edacn.net/bbs/images/default/reply.gif"=20
border=3D0></A></SPAN></DIV>
<FORM name=3Dmodactions method=3Dpost><INPUT type=3Dhidden =
value=3Dc2aed988=20
name=3Dformhash>=20
<DIV class=3D"mainbox viewthread"><SPAN class=3Dheadactions><A=20
href=3D"http://www.edacn.net/spacecp.php?action=3Dspacenews&op=3Dadd&=
amp;tid=3D5514"=20
target=3D_blank>=BC=D3=C8=EB=D7=CA=D1=B6</A> <A id=3Dajax_favorite=20
onclick=3D"ajaxmenu(event, this.id, 3000, 0)"=20
href=3D"http://www.edacn.net/bbs/my.php?item=3Dfavorites&tid=3D5514">=
=CA=D5=B2=D8</A> <A=20
id=3Dajax_subscription onclick=3D"ajaxmenu(event, this.id, 3000, null, =
0)"=20
href=3D"http://www.edacn.net/bbs/my.php?item=3Dsubscriptions&subadd=3D=
5514">=B6=A9=D4=C4</A>=20
<A id=3Demailfriend onclick=3D"ajaxmenu(event, this.id, 9000000, null, =
0)"=20
href=3D"http://www.edacn.net/bbs/misc.php?action=3Demailfriend&tid=3D=
5514">=CD=C6=BC=F6</A>=20
<A class=3Dnotabs=20
href=3D"http://www.edacn.net/bbs/viewthread.php?action=3Dprintable&ti=
d=3D5514"=20
target=3D_blank>=B4=F2=D3=A1</A> </SPAN>
<H1>=D0=C2=CA=D6=C7=F3=D6=FA=A3=A1=A3=A1=B8=DF=C8=CB=C7=EB=D6=B8=B5=E3hdb=
3=B5=C4=B1=E0=BD=E2=C2=EB=BE=AD=B5=E4=CB=E3=B7=A8=A3=A1=A3=A1 </H1>
<TABLE id=3Dpid59270 cellSpacing=3D0 cellPadding=3D0 summary=3Dpid59270>
<TBODY>
<TR>
<TD class=3Dpostauthor><CITE><A class=3Ddropmenu id=3Duserinfo59270=20
onmouseover=3DshowMenu(this.id)=20
href=3D"http://www.edacn.net/bbs/space-uid-15303.html"=20
target=3D_blank>ssllff1218</A></CITE>=20
<DIV class=3Davatar><IMG class=3Davatar alt=3D""=20
=
src=3D"http://www.edacn.net/bbs/images/avatars/noavatar.gif"></DIV>
<P><EM>=D6=FA=B9=A4</EM></P>
<P><IMG alt=3D"Rank: 1"=20
=
src=3D"http://www.edacn.net/bbs/images/default/star_level1.gif"></P>
<UL>
<LI class=3Dspace><A =
title=3Dssllff1218=B5=C4=B8=F6=C8=CB=BF=D5=BC=E4=20
href=3D"http://www.edacn.net/bbs/space-uid-15303.html"=20
target=3D_blank>=B8=F6=C8=CB=BF=D5=BC=E4</A> </LI>
<LI class=3Dpm><A id=3Dajax_uid_59270=20
onclick=3D"ajaxmenu(event, this.id, 9000000, null, 0)"=20
=
href=3D"http://www.edacn.net/bbs/pm.php?action=3Dsend&uid=3D15303"=20
target=3D_blank>=B7=A2=B6=CC=CF=FB=CF=A2</A> </LI>
<LI class=3Dbuddy><A id=3Dajax_buddy_0=20
onclick=3D"ajaxmenu(event, this.id, null, 0)"=20
=
href=3D"http://www.edacn.net/bbs/my.php?item=3Dbuddylist&newbuddyid=3D=
15303&buddysubmit=3Dyes"=20
target=3D_blank>=BC=D3=CE=AA=BA=C3=D3=D1</A> </LI>
<LI class=3Doffline>=B5=B1=C7=B0=C0=EB=CF=DF </LI></UL></TD>
<TD class=3Dpostcontent>
<DIV class=3Dpostinfo><STRONG id=3Dpostnum_59270 =
title=3D=B8=B4=D6=C6=CC=FB=D7=D3=C1=B4=BD=D3=B5=BD=BC=F4=CC=F9=B0=E5=20
=
onclick=3D"setcopy('http://www.edacn.net/bbs/viewthread.php?tid=3D5514&am=
p;page=3D1&fromuid=3D124595#pid59270', =
'=CC=FB=D7=D3=C1=B4=BD=D3=D2=D1=BE=AD=B8=B4=D6=C6=B5=BD=BC=F4=CC=F9=B0=E5=
')">1<SUP>#</SUP></STRONG>=20
<EM =
onclick=3D"$('postmessage_59270').className=3D't_bigfont'">=B4=F3</EM> =
<EM=20
=
onclick=3D"$('postmessage_59270').className=3D't_msgfont'">=D6=D0</EM> =
<EM=20
=
onclick=3D"$('postmessage_59270').className=3D't_smallfont'">=D0=A1</EM> =
=B7=A2=B1=ED=D3=DA=20
2004-10-29 22:44 <A=20
=
href=3D"http://www.edacn.net/bbs/viewthread.php?tid=3D5514&page=3D1&a=
mp;authorid=3D15303">=D6=BB=BF=B4=B8=C3=D7=F7=D5=DF</A>=20
</DIV>
<DIV id=3Dad_thread2_0></DIV>
<DIV class=3D"postmessage defaultpost">
<DIV id=3Dad_thread3_0></DIV>
<DIV id=3Dad_thread4_0></DIV>
=
<H2>=D0=C2=CA=D6=C7=F3=D6=FA=A3=A1=A3=A1=B8=DF=C8=CB=C7=EB=D6=B8=B5=E3hdb=
3=B5=C4=B1=E0=BD=E2=C2=EB=BE=AD=B5=E4=CB=E3=B7=A8=A3=A1=A3=A1</H2>
<DIV class=3Dt_msgfont=20
=
id=3Dpostmessage_59270>=D0=C2=CA=D6=C7=F3=D6=FA=A3=A1=A3=A1=B8=DF=C8=CB=C7=
=EB=D6=B8=B5=E3hdb3=B5=C4=B1=E0=BD=E2=C2=EB=BE=AD=B5=E4=CB=E3=B7=A8=A3=A1=
=A3=A1</DIV></DIV>
<DIV></DIV></TD></TR>
<TR>
<TD class=3Dpostauthor>
<DIV class=3D"popupmenu_popup userinfopanel" =
id=3Duserinfo59270_menu=20
style=3D"DISPLAY: none">
<DL>
<DT>=CC=FB=D7=D3</DT>
<DD>7 </DD>
<DT>=BE=AB=BB=AA</DT>
<DD><A=20
=
href=3D"http://www.edacn.net/bbs/digest.php?authorid=3D15303">0</A> =
</DD>
<DT>=BB=FD=B7=D6</DT>
<DD>260 </DD>
<DT>=BB=EE=D4=BE=D6=B8=CA=FD</DT>
<DD>1 </DD>
<DT>=D4=DA=CF=DF=CA=B1=BC=E4</DT>
<DD>2 =D0=A1=CA=B1 </DD>
<DT>=D7=A2=B2=E1=CA=B1=BC=E4</DT>
<DD>2004-8-31 </DD>
<DT>=D7=EE=BA=F3=B5=C7=C2=BC</DT>
<DD>2007-9-27 </DD></DL>
<P><A=20
=
href=3D"http://www.edacn.net/bbs/space.php?action=3Dviewpro&uid=3D153=
03"=20
=
target=3D_blank>=B2=E9=BF=B4=CF=EA=CF=B8=D7=CA=C1=CF</A></P></DIV></TD>
<TD class=3Dpostcontent>
<DIV class=3Dpostactions>
<P><A=20
=
href=3D"http://www.edacn.net/bbs/post.php?action=3Dreply&fid=3D532&am=
p;tid=3D5514&repquote=3D59270&extra=3Dpage%3D2&page=3D1">=D2=FD=
=D3=C3</A>=20
<A id=3Dajax_report_59270=20
onclick=3D"ajaxmenu(event, this.id, 9000000, null, 0)"=20
=
href=3D"http://www.edacn.net/bbs/misc.php?action=3Dreport&fid=3D532&a=
mp;tid=3D5514&pid=3D59270&page=3D1">=B1=A8=B8=E6</A>=20
<A id=3Dajax_rate_59270 onclick=3D"ajaxmenu(event, this.id, =
9000000, null, 0)"=20
=
href=3D"http://www.edacn.net/bbs/misc.php?action=3Drate&tid=3D5514&am=
p;pid=3D59270&page=3D1">=C6=C0=B7=D6</A>=20
<A onclick=3D"fastreply('=BB=D8=B8=B4 # =B5=C4=CC=FB=D7=D3', =
'postnum_59270')"=20
=
href=3D"http://www.edacn.net/bbs/thread-5514-1-2.html###">=BB=D8=B8=B4</A=
> <STRONG=20
title=3D=B6=A5=B2=BF onclick=3Dscroll(0,0)>TOP</STRONG> </P>
<DIV =
id=3Dad_thread1_0></DIV></DIV></TD></TR></TBODY></TABLE></DIV>
<DIV class=3D"mainbox viewthread">
<TABLE id=3Dpid59271 cellSpacing=3D0 cellPadding=3D0 summary=3Dpid59271>
<TBODY>
<TR>
<TD class=3Dpostauthor><CITE><A class=3Ddropmenu id=3Duserinfo59271=20
onmouseover=3DshowMenu(this.id)=20
href=3D"http://www.edacn.net/bbs/space-uid-9777.html"=20
target=3D_blank>yangfeng</A></CITE>=20
<DIV class=3Davatar><IMG class=3Davatar alt=3D""=20
=
src=3D"http://www.edacn.net/bbs/images/avatars/noavatar.gif"></DIV>
<P><EM>=C8=D9=D3=FE=B0=E6=D6=F7</EM></P>
<P><IMG alt=3D"Rank: 2"=20
=
src=3D"http://www.edacn.net/bbs/images/default/star_level2.gif"></P>
<UL>
<LI class=3Dspace><A =
title=3Dyangfeng=B5=C4=B8=F6=C8=CB=BF=D5=BC=E4=20
href=3D"http://www.edacn.net/bbs/space-uid-9777.html"=20
target=3D_blank>=B8=F6=C8=CB=BF=D5=BC=E4</A> </LI>
<LI class=3Dpm><A id=3Dajax_uid_59271=20
onclick=3D"ajaxmenu(event, this.id, 9000000, null, 0)"=20
=
href=3D"http://www.edacn.net/bbs/pm.php?action=3Dsend&uid=3D9777"=20
target=3D_blank>=B7=A2=B6=CC=CF=FB=CF=A2</A> </LI>
<LI class=3Dbuddy><A id=3Dajax_buddy_1=20
onclick=3D"ajaxmenu(event, this.id, null, 0)"=20
=
href=3D"http://www.edacn.net/bbs/my.php?item=3Dbuddylist&newbuddyid=3D=
9777&buddysubmit=3Dyes"=20
target=3D_blank>=BC=D3=CE=AA=BA=C3=D3=D1</A> </LI>
<LI class=3Doffline>=B5=B1=C7=B0=C0=EB=CF=DF </LI></UL></TD>
<TD class=3Dpostcontent>
<DIV class=3Dpostinfo><STRONG id=3Dpostnum_59271 =
title=3D=B8=B4=D6=C6=CC=FB=D7=D3=C1=B4=BD=D3=B5=BD=BC=F4=CC=F9=B0=E5=20
=
onclick=3D"setcopy('http://www.edacn.net/bbs/viewthread.php?tid=3D5514&am=
p;page=3D1&fromuid=3D124595#pid59271', =
'=CC=FB=D7=D3=C1=B4=BD=D3=D2=D1=BE=AD=B8=B4=D6=C6=B5=BD=BC=F4=CC=F9=B0=E5=
')">2<SUP>#</SUP></STRONG>=20
<EM =
onclick=3D"$('postmessage_59271').className=3D't_bigfont'">=B4=F3</EM> =
<EM=20
=
onclick=3D"$('postmessage_59271').className=3D't_msgfont'">=D6=D0</EM> =
<EM=20
=
onclick=3D"$('postmessage_59271').className=3D't_smallfont'">=D0=A1</EM> =
=B7=A2=B1=ED=D3=DA=20
2004-10-30 08:07 <A=20
=
href=3D"http://www.edacn.net/bbs/viewthread.php?tid=3D5514&page=3D1&a=
mp;authorid=3D9777">=D6=BB=BF=B4=B8=C3=D7=F7=D5=DF</A>=20
</DIV>
<DIV id=3Dad_thread2_1></DIV>
<DIV class=3D"postmessage defaultpost">
<DIV id=3Dad_thread3_1></DIV>
<DIV id=3Dad_thread4_1></DIV>
=
<H2>=D0=C2=CA=D6=C7=F3=D6=FA=A3=A1=A3=A1=B8=DF=C8=CB=C7=EB=D6=B8=B5=E3hdb=
3=B5=C4=B1=E0=BD=E2=C2=EB=BE=AD=B5=E4=CB=E3=B7=A8=A3=A1=A3=A1</H2>
<DIV class=3Dt_msgfont=20
=
id=3Dpostmessage_59271>=CE=D2=B8=D5=D7=F6=BA=C3=D5=E2=B8=F6=A3=AC=B1=E0=C2=
=EB=B2=BF=B7=D6=CA=C7=B4=D3=D5=D2=B5=BD=B5=C4=B3=CC=D0=F2=B8=C4=B9=FD=C8=A5=
=B5=C4=A3=AC=B7=C2=D5=E6=BD=E1=B9=FB=D5=FD=C8=B7=A3=AC=B8=FA=D4=AD=B1=E0=C2=
=EB=B3=CC=D0=F2=C5=E4=CC=D7=B5=C4=BD=E2=C2=EB=B2=BF=B7=D6=B1=C8=BD=CF=B8=B4=
=D4=D3=A3=AC=CE=D2=D6=D8=D0=C2=D0=B4=C1=CB=D2=BB=B8=F6=BC=F2=B5=A5=B5=C4=A3=
=AC=B7=C2=D5=E6=D2=B2=CA=C7=B6=D4=B5=C4=A3=AC=BB=B9=C3=BB=D3=D0=CF=C2=D4=D8=
=A1=A3=B1=E3=D2=CB=C4=E3=C1=CB=A1=A3<BR>`timescale=20
1ns/1ns<BR>module t_hdb3(reset_all,<BR> =20
data_in,<BR> clk_2m,<BR> =
=20
tdp,//RZ code/clk<BR> tdn,//RZ =
code/data in=20
NRZ<BR> );<BR> =20
=
<BR>inputreset_all;<BR>inputdata_in;<BR>inputclk_2m;<BR>outputtdp;<=
BR>outputtdn;<BR>//sample=20
data_in<BR>regdata_in_buff;<BR>always@(negedge reset_all or =
posedge=20
clk_2m)<BR>begin<BR>if(!reset_all)<BR>data_in_buff <=3D =
0;<BR>else=20
<BR>data_in_buff <=3D data_in;<BR>end<BR><BR>//count the =
numbers of=20
0<BR>reg[2:0]count0;//count the numbers of 0<BR>regcount1;//count =
the=20
numbers of B(it is 1),when V arriving, it is=20
=
cleared<BR>reg[5:0]tdp_buff;<BR>reg[5:0]tdn_buff;<BR>regselect_pn;<BR>&nb=
sp;=20
=
<BR>//*********=20
tdp ,tdn convert into RZ code *************<BR>wiretdp =3D=20
tdp_buff[0];<BR>wiretdn =3D =
tdn_buff[0];<BR>//count0<BR>always@(negedge=20
reset_all or posedge =
clk_2m)<BR>begin<BR>if(!reset_all)<BR>begin<BR>count0=20
<=3D 0;<BR>end<BR>else if(count0 =3D=3D=20
3'd4)<BR>begin<BR>if(data_in_buff)<BR>count0 <=3D =
0;<BR>else<BR>count0=20
<=3D 1;<BR>end<BR>else <BR>begin<BR>if(!data_in_buff)<BR>count0 =
<=3D=20
count0 +1;<BR>else<BR>count0 <=3D=20
0;<BR>end<BR>end<BR><BR>//count1<BR>always@(negedge reset_all or =
posedge=20
clk_2m)<BR>begin<BR>if(!reset_all)<BR>begin<BR>count1 <=3D=20
0;<BR>end<BR>else if(count0 =3D=3D=20
3'd4)<BR>begin<BR>if(data_in_buff)<BR>count1 <=3D =
1;<BR>else<BR>count1=20
<=3D 0;<BR>end<BR>else if(data_in_buff)<BR>begin<BR>count1 =
<=3D count1=20
+1;<BR>end<BR>end<BR><BR>always@(negedge reset_all or posedge=20
clk_2m)<BR>begin<BR>if(!reset_all)<BR>begin<BR>tdp_buff <=3D=20
0;<BR>tdn_buff <=3D 0;<BR>select_pn <=3D=20
0;<BR>end<BR>else<BR>begin<BR>tdp_buff[0] <=3D=20
tdp_buff[1];<BR>tdn_buff[0] <=3D tdn_buff[1];<BR><BR>//update=20
tdp_buff[4:1],tdn_buff[4:1],tdp_buff[5],tdn_buff[5]<BR>if(count0 =
=3D=3D=20
3'd4)<BR>begin =
=20
=
=20
<BR> if(count1)//replace code =
=3D=20
4'b1000; <BR> begin =20
=20
<BR> =
=20
if(!select_pn)<BR> =20
begin<BR> =20
tdn_buff[4] <=3D 1;<BR> =20
tdn_buff[3:1] <=3D 3'b000;<BR> =
=20
<BR> =
tdp_buff[4:1]=20
<=3D 4'b0000;<BR> =
<BR> =20
if(data_in_buff)<BR> =
=20
begin<BR> =20
tdp_buff[5] <=3D data_in_buff;<BR> =
=20
tdn_buff[5] <=3D 0;<BR> =20
select_pn <=3D1;<BR> =20
end<BR> =20
else<BR> =20
begin<BR> =20
tdp_buff[5] <=3D 0;<BR> =20
tdn_buff[5] <=3D 0;<BR> =20
end<BR> =20
end<BR> =20
else<BR> =20
begin<BR> =20
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -