📄 ds18b20的温度计 -- bentlet's blog.mht
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<DIV class=3DMain>
<DIV class=3DTitle>
<H2>=C8=D5=D6=BE=B5=B5=B0=B8</H2></DIV>
<DIV class=3D"DiaryMain MarginBottom10">
<DIV class=3DPublishTime>=B7=A2=B1=ED=D3=DA 2008-3-14 15:51:49</DIV>
<DIV class=3DContent>
<DIV class=3DBallot>
<DIV class=3Ddigg =
id=3Dctl00_ctl00_SkinBody_Content_ContentControl_ctl00_Digg2>
<H4 id=3Dctl00_ctl00_SkinBody_Content_ContentControl_ctl00_Digg2_display =
style=3D"opacity: 1">1 </H4><SPAN class=3Dunclicked =
onmouseover=3DDigg_Mouseover(this)=20
onclick=3D"if(this.className !=3D =
'clicked'){WebForm_DoCallback('ctl00$ctl00$SkinBody$Content$ContentContro=
l$ctl00$Digg2',null,DiggClientCallBack,null,null,true)}"=20
onmouseout=3DDigg_Mouseout(this)></SPAN></DIV></DIV>
<DIV class=3DText>
<P class=3DLabel>=B1=EA=C7=A9=A3=BA <A title=3D=B5=A5=C6=AC=BB=FA=20
href=3D"http://blog.ednchina.com/Label/µ¥Æ¬»=A8=
=B2.aspx">=B5=A5=C6=AC=BB=FA</A> <A=20
title=3DDS1820=20
href=3D"http://blog.ednchina.com/Label/DS1820.aspx">DS1820</A>  =
;</P>
<H1><A=20
href=3D"http://blog.ednchina.com/Bentlet/93156/message.aspx#">DS18B20=B5=C4=
=CE=C2=B6=C8=BC=C6</A></H1>
<P>
<P class=3DMsoNormal style=3D"MARGIN: 0cm 0cm 0pt"><SPAN=20
style=3D"FONT-SIZE: 9pt; FONT-FAMILY: =CB=CE=CC=E5; mso-font-kerning: =
0pt; mso-bidi-font-family: =CB=CE=CC=E5"><A=20
href=3D"http://space.ednchina.com/upload/2008/3/14/610e9eac-66fd-48b7-98f=
7-22e9618b3d42.rar"><IMG=20
alt=3D=B5=E3=BB=F7=CF=C2=D4=D8 =
src=3D"http://space.ednchina.com/images/download.gif"=20
border=3D0></A>=D5=E2=CA=C7=CE=D2=C9=E8=BC=C6=B5=C4<SPAN =
lang=3DEN-US>DS18B20</SPAN>=B5=C4=CE=C2=B6=C8=BC=C6=A3=AC=D3=C3<SPAN=20
lang=3DEN-US>PROTUES</SPAN>=B7=C2=D5=E6=B5=C4=A3=A8=D4=AD=C1=C2=CE=D2=C3=BB=
=BA=B8=CB=FC=B3=F6=C0=B4=A3=A9<SPAN =
lang=3DEN-US>DS18B20</SPAN>=CA=C7=B8=F6<SPAN=20
lang=3DEN-US>12</SPAN>=CE=BB=B5=C4=C2=FD=CB=D9=CE=C2=B6=C8=D7=AA=BB=BB=C6=
=F7=BC=FE=A3=AC=B5=A5=D7=DC=CF=DF=C9=E8=BC=C6=A3=AC=B1=BE=C0=FD=D3=C3=BC=C4=
=C9=FA=B5=E7=D4=B4=B9=A9=B5=E7=A3=AC=D3=C9=D3=DA=BF=AA=CA=BC=CA=B1=C3=BB=D3=
=D0=CD=EA=C8=AB=B0=B4=D5=D5<SPAN=20
lang=3DEN-US>DS18B20</SPAN>=B5=C4=B6=C1=D0=B4=CA=B1=D0=F2=D0=B4=B3=CC=D0=F2=
=B5=BC=D6=C2=CE=DE=B7=A8=B6=C1=C8=A1=C6=F7=BC=FE=A3=AC=B5=A5=D7=DC=CF=DF=C6=
=F7=BC=FE=B6=D4=B6=C1=D0=B4=CA=B1=D0=F2=D2=AA=C7=F3=BD=CF=B8=DF=A3=AC=B1=D8=
=D0=EB=B0=B4=D5=D5=C6=E4=B6=C1=D0=B4=CA=B1=D0=F2=B2=D9=D7=F7=A3=AC<SPAN=20
lang=3DEN-US>12</SPAN>=CE=BB=D7=AA=BB=BB=CB=D9=B6=C8=BA=DC=C2=FD=B2=C5<SP=
AN lang=3DEN-US>750ms</SPAN>=A3=AC<SPAN=20
lang=3DEN-US>9</SPAN>=CE=BB=D2=B2=D2=AA<SPAN=20
lang=3DEN-US>93.75ms</SPAN>=A3=AC=D4=DA=B6=D4=CE=C2=B6=C8=CA=B5=CA=B1=D0=D4=
=D2=AA=C7=F3=B2=BB=B8=DF=B5=C4=B5=D8=B7=BD=BF=C9=D2=D4=D3=C3=A3=AC=C8=E7=CC=
=E5=CE=C2=BC=C6=A3=A8=BF=C9=BE=AB=C8=B7=B5=BD<SPAN=20
lang=3DEN-US>0.0625</SPAN>=A3=AC=BF=C9=CD=A8=B9=FD=D4=CB=CB=E3=BE=AB=C8=B7=
=B5=BD<SPAN lang=3DEN-US>0.1</SPAN>=A3=AC=B2=BB=B9=FD<SPAN=20
lang=3DEN-US>8</SPAN>=CE=BB=B5=A5=C6=AC=BB=FA=B5=C4=D4=CB=CB=E3=C4=DC=C1=A6=
=B2=BB=B8=D2=B9=A7=CE=AC=A3=A9=D4=CB=D3=C3=D4=DA=B5=E7=B7=B9=EC=D2=C9=CF<=
SPAN=20
lang=3DEN-US>9</SPAN>=CE=BB=D7=AA=BB=BB=B5=C4=CA=B1=BC=E4=BB=B9=CA=C7=BF=C9=
=D2=D4=B4=EF=B5=BD=D2=AA=C7=F3=B5=C4=A3=AC=C7=D2=D5=E2=B5=A5=D7=DC=CF=DF=C6=
=F7=BC=FE=CC=D8=B1=F0=CA=CA=D3=C3=D3=DA=BB=B7=BE=B3=B6=F1=C1=D3=B5=C4=B5=D8=
=B7=BD=A3=AC=B3=C9=B1=BE=BD=CF=B8=DF=A3=A8=B5=A5=C2=F2=D2=AA<SPAN=20
lang=3DEN-US>7-10</SPAN>=BF=E9=A3=AC=C1=BF=C2=F2=D3=A6=B8=C3=BF=C9=D2=D4=D4=
=DA<SPAN =
lang=3DEN-US>2-3</SPAN>=BF=E9=B0=C9=A3=A9=A3=AC=B1=BE=B3=CC=D0=F2=CA=C7=D3=
=C3<SPAN=20
lang=3DEN-US>12</SPAN>=CE=BB=D7=AA=BB=BB=CA=B5=CF=D6=BE=AB=C8=B7=B5=BD=B8=
=F6=CE=BB=B5=C4=CE=C2=B6=C8=BC=C6=B3=CC=D0=F2<SPAN=20
lang=3DEN-US><BR></SPAN>=D0=B4=B1=BE=B3=CC=D0=F2=CA=B1=B3=E4=B7=D6=CC=E5=BB=
=E1=B5=BD=BB=E3=B1=E0=B5=C4=BE=AB=CF=B8=D2=AA=C7=F3=A3=A8=D2=BB=CC=F5=D3=EF=
=BE=E4=D3=D0=B5=E3=B5=E3=CE=CA=CC=E2=B6=BC=BF=C9=C4=DC=D3=B0=CF=EC=D5=FB=B8=
=F6=B3=CC=D0=F2=A3=AC=D5=E2=CA=C7=CF=B8=D0=C4=B5=C4=BB=EE=A3=AC=D2=AA=C4=CD=
=D0=C4=A3=A9=A3=AC=BB=B9=D3=D0<SPAN=20
lang=3DEN-US>DS18B20</SPAN>=B5=A5=D7=DC=CF=DF=B5=C4=CA=B1=D0=F2=D2=AA=C7=F3=
=B5=C4=D1=CF=B8=F1=D0=D4<SPAN=20
lang=3DEN-US><BR></SPAN>=CF=C2=C3=E6=BD=AB=CE=D2=B5=C4=B5=E7=C2=B7=CD=BC=BB=
=B9=D3=D0=BB=E3=B1=E0=B3=CC=D0=F2=B8=F8=B4=F3=BC=D2<SPAN =
lang=3DEN-US><BR><A=20
href=3D"http://sz.photo.store.qq.com/rurl2=3Ddaa6f413d4e6adb8139720a16068=
211d7b917ad8af8d02100010108668727d5c2d1f2d4a3846c0be8dd1351fcc8861e763aa3=
5c3e6217a0c550078e730c7b27c20339a8cda70b9155765bdd42afc9b8490638746"=20
target=3D_blank><SPAN=20
style=3D"TEXT-DECORATION: none; text-underline: none"><v:shapetype =
id=3D_x0000_t75=20
coordsize=3D"21600,21600" o:spt=3D"75" o:preferrelative=3D"t"=20
path=3D"m@4@5l@4@11@9@11@9@5xe" filled=3D"f" stroked=3D"f"><v:stroke=20
joinstyle=3D"miter"></v:stroke><v:formulas><v:f=20
eqn=3D"if lineDrawn pixelLineWidth 0"></v:f><v:f eqn=3D"sum @0 1 =
0"></v:f><v:f=20
eqn=3D"sum 0 0 @1"></v:f><v:f eqn=3D"prod @2 1 2"></v:f><v:f=20
eqn=3D"prod @3 21600 pixelWidth"></v:f><v:f=20
eqn=3D"prod @3 21600 pixelHeight"></v:f><v:f eqn=3D"sum @0 0 =
1"></v:f><v:f=20
eqn=3D"prod @6 1 2"></v:f><v:f eqn=3D"prod @7 21600 =
pixelWidth"></v:f><v:f=20
eqn=3D"sum @8 21600 0"></v:f><v:f eqn=3D"prod @7 21600 =
pixelHeight"></v:f><v:f=20
eqn=3D"sum @10 21600 0"></v:f></v:formulas><v:path o:extrusionok=3D"f"=20
gradientshapeok=3D"t" o:connecttype=3D"rect"></v:path><o:lock =
v:ext=3D"edit"=20
aspectratio=3D"t"></o:lock></v:shapetype></SPAN></A><A=20
href=3D"http://space.ednchina.com/Upload/Blog/2008/3/14/76cebde3-dd6d-443=
0-937d-a1eff8d2fa3d.JPG"=20
target=3D_blank><IMG height=3D390 alt=3D=B5=E3=BB=F7=BF=B4=B4=F3=CD=BC=20
src=3D"http://space.ednchina.com/Upload/Blog/2008/3/14/76cebde3-dd6d-4430=
-937d-a1eff8d2fa3d.JPG"=20
width=3D520></A><BR>;----------------------------------------------<BR>;t=
emperature.asm<BR>;</SPAN>=D7=F7=D5=DF=A3=BA=C0=CF=C3=A8<SPAN=20
lang=3DEN-US><BR>;</SPAN>=D7=F7=D3=C3=A3=BA=C0=FB=D3=C3=CE=C2=B6=C8=B4=AB=
=B8=D0=C6=F7=B2=E2=CE=C2=A3=AC=B2=A2=CF=D4=CA=BE=B3=F6=C0=B4=A3=AC=BE=AB=B6=
=C8=CE=AA=B8=F6=CE=BB<SPAN=20
lang=3DEN-US><BR>;</SPAN>=C8=D5=C6=DA=A3=BA<st1:chsdate Year=3D"2008" =
Month=3D"3" Day=3D"14"=20
IsLunarDate=3D"False" IsROCDate=3D"False" w:st=3D"on"><SPAN=20
lang=3DEN-US>2008-3-14</SPAN></st1:chsdate><BR><SPAN =
lang=3DEN-US>;</SPAN>=B0=E6=B1=BE=A3=BA<SPAN=20
lang=3DEN-US>1.0<BR>;MCU</SPAN>=A3=BA<SPAN =
lang=3DEN-US>AT89S51<BR>;</SPAN>=BE=A7=D5=F1=C6=B5=C2=CA=A3=BA<SPAN=20
lang=3DEN-US>12MHz<BR>;DS18B20</SPAN>=BD=D3<SPAN =
lang=3DEN-US>P3.4</SPAN>=D3=C3=BC=C4=C9=FA=B5=E7=D4=B4=B9=A9=B5=E7<SPAN=20
lang=3DEN-US><BR>;P0</SPAN>=BD=D3=D2=F5=BC=AB=CA=FD=C2=EB=B9=DC=CF=D4=CA=BE=
=CE=BB<SPAN=20
lang=3DEN-US><BR>;P2^1-4</SPAN>=B7=D6=B1=F0=BD=D3=CA=FD=C2=EB=B9=DC=B8=F6=
=CA=AE=B0=D9=C7=A7=CE=BB<SPAN=20
lang=3DEN-US><BR>;-----------------------------------------------<BR><BR>=
DQ bit p3.4<SPAN=20
style=3D"mso-spacerun: yes"> </SPAN></SPAN>=A3=BB=B6=A8=D2=E5<SPAN =
lang=3DEN-US>DQ</SPAN>=CE=AA=B5=A5=C6=AC=BB=FA=BA=CD<SPAN =
lang=3DEN-US>DS18B20</SPAN>=CD=A8=D1=B6=B9=DC=BD=C5<SPAN=20
lang=3DEN-US><BR>FLAG BIT 01H<SPAN=20
style=3D"mso-spacerun: yes"> =20
</SPAN></SPAN>=A3=BB<SPAN =
lang=3DEN-US>DS18B20</SPAN>=B4=E6=D4=DA=B1=EA=BC=C7<SPAN =
lang=3DEN-US><BR>TMPL data=20
029h<SPAN=20
style=3D"mso-spacerun: =
yes"> =20
</SPAN></SPAN>=A3=BB<SPAN =
lang=3DEN-US>12</SPAN>=CE=BB=CE=C2=B6=C8=B8=DF=CE=BB<SPAN =
lang=3DEN-US><BR>TMPH data=20
028h<SPAN=20
style=3D"mso-spacerun: =
yes"> &n=
bsp;=20
</SPAN></SPAN>=A3=BB<SPAN =
lang=3DEN-US>12</SPAN>=CE=BB=CE=C2=B6=C8=B5=CD=CE=BB<SPAN=20
lang=3DEN-US><BR>TMP DATA 027H<SPAN=20
style=3D"mso-spacerun: =
yes"> =20
</SPAN></SPAN>=A3=BB=D7=AA=BB=BB=CE=AA<SPAN =
lang=3DEN-US>8</SPAN>=CE=BB=BA=F3=CE=C2=B6=C8=D7=D6=BD=DA<SPAN=20
lang=3DEN-US><BR>org 0000h<BR>ljmp main<BR>main:MOV =
SP,#0CFH<SPAN=20
style=3D"mso-spacerun: =
yes"> =20
</SPAN><SPAN style=3D"mso-tab-count: 1"> =
</SPAN></SPAN>=A3=BB=B3=F5=CA=BC=BB=AF=B6=D1=D5=BB<SPAN=20
lang=3DEN-US><BR>CLR FLAG<BR>LCALL RESET<SPAN=20
style=3D"mso-spacerun: yes"> =
</SPAN></SPAN>=A3=BB=B3=F5=CA=BC=BB=AF<SPAN=20
lang=3DEN-US>DS18B20<BR>JNB FLAG,CZ =
</SPAN>=A3=BB=C5=D0=B6=CF<SPAN=20
lang=3DEN-US>DS18B20</SPAN>=B4=E6=D4=DA=D3=EB=B7=F1<SPAN =
lang=3DEN-US><BR>MOV TMP,#11=20
</SPAN>=A3=BB=B8=E6=D6=AA<SPAN =
lang=3DEN-US>DS18B20</SPAN>=B4=E6=D4=DA<SPAN lang=3DEN-US><BR>LCALL=20
DISPLAY<BR>RE: LCALL RESET </SPAN>=A3=BB=D6=D8=B8=B4=B5=F7=D3=C3<SPAN =
lang=3DEN-US>DS18B20</SPAN>=BA=CD=CF=D4=CA=BE<SPAN=20
lang=3DEN-US><BR>MOV A,#0CCH =
</SPAN>=A3=BB=CC=F8=B9=FD=CB=D1=CB=F7<SPAN lang=3DEN-US>ROM<BR>LCALL=20
WRITE<BR>NOP<BR>MOV A,#044H =
</SPAN>=A3=BB=B7=A2=CB=CD=C3=FC=C1=EE=D7=AA=BB=BB=CE=C2=B6=C8=A3=AC<SPAN =
lang=3DEN-US>12</SPAN>=CE=BB=D7=EE=B4=F3=D7=AA=BB=BB=CA=B1=BC=E4<SPAN =
lang=3DEN-US>750MS</SPAN>=A3=AC<SPAN=20
lang=3DEN-US><BR>LCALL =
WRITE<BR>MOV R5,#30<BR>REDISPLAY:=20
LCALL DISPLAY<BR>DJNZ R5,REDISPLAY<BR>LCALL RESET =
</SPAN>=A3=BB=D6=D8=D0=C2=B8=B4=CE=BB<SPAN=20
lang=3DEN-US>DS18B20<BR>MOV A,#0CCH =
</SPAN>=A3=BB=CC=F8=B9=FD<SPAN=20
lang=3DEN-US>ROM<BR>LCALL WRITE<BR>LCALL GET_TEMPER =
</SPAN>=A3=BB=B6=C1=C8=A1=CE=C2=B6=C8<SPAN=20
lang=3DEN-US><BR>LCALL TRANS_TEMP </SPAN>=A3=BB=D3=C9<SPAN =
lang=3DEN-US>12</SPAN>=CE=BB=CE=C2=B6=C8=D7=AA=BB=BB=CE=AA<SPAN=20
lang=3DEN-US>8</SPAN>=CE=BB=CE=C2=B6=C8<SPAN lang=3DEN-US><BR>LCALL =
DISPLAY </SPAN>=A3=BB=CF=D4=CA=BE<SPAN=20
lang=3DEN-US><BR>SJMP RE<BR>CZ: MOV TMP,#99<BR>SJMP=20
REDISPLAY<BR>;=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D</SPAN>=CE=C2=
=B6=C8=D7=AA=BB=BB<SPAN=20
lang=3DEN-US>=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D<BR>TRANS_TEMP:=
</SPAN>=A3=BB=CE=C2=B6=C8=B5=CD=CE=BB=B8=DF<SPAN=20
lang=3DEN-US>4</SPAN>=CE=BB=BA=CD=CE=C2=B6=C8=B8=DF=CE=BB=B5=C4=B5=CD<SPA=
N=20
lang=3DEN-US>4</SPAN>=CE=BB=CE=AA=CE=D2=C3=C7=D0=E8=D2=AA=B5=C4=B6=E0=D6=D6=
=B7=BD=B7=A8=CA=B5=CF=D6=A3=AC=B4=CB=B7=BD=B7=A8=D6=DC=C6=DA=B3=A4=A3=AC=D5=
=BC=D3=C3=D7=D6=BD=DA=B6=E0=A3=AC=C7=D2=D2=AA=D3=C3=B5=BD=CE=BB=D1=B0=D6=B7=
=B5=D8=D6=B7=A3=AC=D7=CA=D4=B4=C0=CB=B7=D1=D1=CF=D6=D8<SPAN=20
lang=3DEN-US><BR> MOV C,28H.3<BR> MOV=20
27H.7,C<BR> MOV C,28H.2<BR> MOV =
27H.6,C<BR> =20
MOV C,28H.1<BR> MOV 27H.5,C<BR> MOV=20
C,28H.0<BR> MOV 27H.4,C<BR> MOV =
C,29H.7<BR> =20
MOV 27H.3,C<BR> MOV C,29H.6<BR> MOV=20
27H.2,C<BR> MOV C,29H.5<BR> MOV =
27H.1,C<BR> =20
MOV C,29H.4<BR> MOV 27H.0,C<BR> mov=20
a,27h<BR> =
RET<BR>;=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D</SPAN>=CF=D4=CA=BE<SPA=
N=20
lang=3DEN-US>=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D<BR>DISPLAY: <BR>PUSH ACC </SPAN>=A3=BB=CF=D6=B3=A1=B1=A3=B4=E6<SPAN=20
lang=3DEN-US><BR>PUSH PSW<BR>PUSH B<BR>PUSH TMP<BR>MOV P2,#0<BR>MOV=20
DPTR,#NUM<BR>MOV =
A,TMP ;</SPAN>=CF=D4=CA=BE=C7=B0=C1=BD=CE=BB<SPAN=20
lang=3DEN-US>tmp</SPAN>=B3=FD=D2=D4<SPAN =
lang=3DEN-US>10</SPAN>=B5=C3=B5=BD=B8=DF=B5=CD=CE=BB=A3=A8=B6=D4=C1=E3=CF=
=C2=BA=CD=B8=DF=D3=DA<SPAN=20
lang=3DEN-US>100</SPAN>=B5=C4=CE=C2=B6=C8=CE=DE=D0=A7=A3=A9<SPAN =
lang=3DEN-US><BR>MOV B,#10<BR>DIV=20
AB ;</SPAN>=B5=CD=CE=BB<SPAN =
lang=3DEN-US>/10</SPAN>=A3=AC=D3=E0=CA=FD=CA=C7=B8=F6=CE=BB=A3=AC=C9=CC=CA=
=C7=CA=AE=CE=BB<SPAN=20
lang=3DEN-US><BR>MOVC A,@A+DPTR<BR>MOV P0,A<BR>SETB P2.1<BR>LCALL =
DELAY<BR>MOV=20
A,B<BR>MOVC A,@A+DPTR<BR>CLR P2.1<BR>MOV P0,A<BR>SETB =
P2.0<BR>LCALL=20
DELAY<BR>RETURN: POP TMP<SPAN style=3D"mso-spacerun: =
yes"> =20
</SPAN></SPAN>=A3=BB=CF=D6=B3=A1=BB=D6=B8=B4<SPAN lang=3DEN-US><BR>POP =
B<BR>POP PSW<BR>POP=20
ACC<BR>RET<BR>;=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D</SPAN>=B6=C1=C8=
=A1=CE=C2=B6=C8=CA=FD=BE=DD<SPAN=20
lang=3DEN-US>=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D<BR>GET_TEMP=
ER: JNB FLAG,R_T_NO=20
</SPAN>=A3=BB=C5=D0=B6=CF=C6=F7=BC=FE=B4=E6=D4=DA=D3=EB=B7=F1 <SPAN =
lang=3DEN-US><BR> MOV A,#0BEH=20
</SPAN>=A3=BB=B7=A2=CB=CD<SPAN lang=3DEN-US>0BE</SPAN>=B6=C1=C8=A1<SPAN =
lang=3DEN-US>RAM</SPAN>=C9=CF=C4=DA=C8=DD<SPAN=20
lang=3DEN-US><BR> LCALL WRITE<BR> LCALL=20
READ<BR> MOV TMPL,A =
</SPAN>=A3=BB=CF=C8=B5=CD=CE=BB=BA=F3=B8=DF=CE=BB<SPAN=20
lang=3DEN-US><BR> LCALL =
READ<BR> MOV TMPH,A=20
<BR> RET<BR>R_T_NO:MOV TMPH,#0H<BR> &nbs=
p; =20
MOV TMPL,#0H<BR> RET<BR>;=3D=3D=3D=3D=3D=
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