📄 ds18b20的温度计 -- bentlet's blog.mht
字号:
=3D=3D=3D=3D=3D=3D=3D</SPAN>=B3=F5=CA=BC=BB=AF<SPAN=20
lang=3DEN-US>18B20</SPAN>=D7=D3=B3=CC=D0=F2<SPAN=20
lang=3DEN-US>=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D<BR>;</SPAN>=CA=
=B5=CF=D6=CA=B1=D0=F2=D3=C9=B5=A5=C6=AC=BB=FA=B8=BA=CC=F8=D7=AA=B1=A3=B3=D6=
=B5=CD=B5=E7=C6=BD<SPAN=20
lang=3DEN-US>480us</SPAN>=C8=BB=BA=F3=B7=C5=BF=AA=D7=DC=CF=DF=A3=AC=B5=C8=
=B4=FD<SPAN lang=3DEN-US>60us</SPAN>=BA=F3=D3=C9<SPAN=20
lang=3DEN-US>DS18B20</SPAN>=B7=A2=B3=F6=B4=E6=D4=DA=C2=F6=B3=E5=D7=DC=B9=B2=
<SPAN lang=3DEN-US>480us<BR>RESET:<BR>SETB=20
DQ<BR>NOP<BR>NOP<BR>CLR DQ<BR>MOV R7,#3<BR>START_DEL1: MOV =
R6,#107<BR>DJNZ=20
R6,$<BR>DJNZ R7,START_DEL1<BR>SETB DQ<BR>NOP<BR>NOP<BR>MOV=20
R7,#100<BR>START_RELAY: JNB DQ,HAVE1820<BR>DJNZ R7,START_RELAY<BR>CLR=20
FLAG<BR>SJMP START_OUT<BR>HAVE1820:<BR>SETB FLAG<BR>MOV R6,117<BR>DJNZ=20
R6,$<BR>START_OUT:<BR>SETB DQ<BR>RET =20
<BR>;=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D</SPAN>=B6=C1=D7=D6=BD=
=DA<SPAN=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=3D<BR>READ:</SPAN>=A3=BB=B6=C1=CA=B1=D0=F2=B5=A5=C6=AC=BB=FA=B8=BA=CC=
=F8=D7=AA=BA=F3=B5=C8=B4=FD<SPAN=20
lang=3DEN-US>1-2us</SPAN>=D4=DA<SPAN =
lang=3DEN-US>15us</SPAN>=C4=DA=B6=C1=C8=A1=B8=DF=B5=CD=A3=AC=C8=BB=BA=F3=B5=
=C8=B4=FD<SPAN=20
lang=3DEN-US>45us</SPAN>=BA=F3=D3=D6=BF=AA=CA=BC=B6=C1=C8=A1=CF=C2=D2=BB=CE=
=BB=A3=AC=C3=BF=D7=D6=BD=DA<SPAN lang=3DEN-US>8</SPAN>=CE=BB<SPAN=20
lang=3DEN-US><BR>MOV R7,#8<BR>READ_BIT: SETB DQ<BR>CLR C<BR>NOP<BR>CLR=20
DQ<BR>NOP<BR>NOP<BR>SETB DQ<BR>MOV R6,#6<BR>DJNZ R6,$<BR>MOV C,DQ<BR>RRC =
A<BR>MOV R6,#25<BR>DJNZ R6,$<BR>DJNZ=20
R7,READ_BIT<BR>RET<BR>;=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
</SPAN>=D0=B4=D7=D6=BD=DA<SPAN=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=3D<BR>WRITE: =
</SPAN>=A3=BB=D0=B4=CA=B1=D0=F2=A3=AC=B8=BA=CC=F8=D7=AA=BA=F3=B5=C8=B4=FD=
<SPAN=20
lang=3DEN-US>15us</SPAN>=C4=DA=D0=B4=C8=EB<SPAN =
lang=3DEN-US>0</SPAN>=BB=F2<SPAN=20
lang=3DEN-US>1</SPAN>=A3=AC=B1=A3=B3=D6<SPAN =
lang=3DEN-US>45us</SPAN>=A3=AC=D4=D9=BF=AA=CA=BC=CF=C2=D2=BB=CE=BB=D0=B4=CA=
=B1=D0=F2=A3=AC=C3=BF=D7=D6=BD=DA<SPAN=20
lang=3DEN-US>8</SPAN>=CE=BB<SPAN lang=3DEN-US><BR>MOV R7,#8<BR>CLR=20
C<BR>WRITE_BIT:<BR>SETB DQ<BR>NOP<BR>NOP<BR>CLR DQ<BR>MOV R6,#6<BR>DJNZ=20
R6,$<BR>RRC A<BR>MOV DQ,C<BR>MOV =
R5,#23 ;</SPAN>=D3=C9<SPAN=20
lang=3DEN-US>25</SPAN>=B8=C4=CE=AA<SPAN lang=3DEN-US>6<BR>DJNZ =
R5,$<BR>SETB DQ<BR>NOP<BR>DJNZ=20
R7,WRITE_BIT<BR>SETB =
DQ<BR>RET<BR><BR>;---------------</SPAN>=D1=D3=CA=B1<SPAN=20
lang=3DEN-US>6ms--------------<BR>DELAY:PUSH PSW<BR>SETB RS0<BR>SETB =
RS1<BR>MOV=20
R6,#0EH ;</SPAN>=D1=D3=CA=B1<SPAN=20
lang=3DEN-US>6MS<BR>DEL1: MOV R7,#<st1:chmetcnv w:st=3D"on" =
UnitName=3D"C"=20
SourceValue=3D"0" HasSpace=3D"False" Negative=3D"False" NumberType=3D"1" =
TCSC=3D"0">0C</st1:chmetcnv>0H<BR>DJNZ R7,$<BR>DJNZ=20
R6,DEL1<BR>POP PSW<BR>RET<BR> ;=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D</SPAN>=CA=FD=C2=EB=B9=DC=CF=D4=CA=BE<SPAN=20
lang=3DEN-US>=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D<BR>NUM:DB =
<st1:chmetcnv w:st=3D"on" UnitName=3D"C"=20
SourceValue=3D"0" HasSpace=3D"False" Negative=3D"False" NumberType=3D"1" =
TCSC=3D"0">0C</st1:chmetcnv>0H,<st1:chmetcnv w:st=3D"on" UnitName=3D"F"=20
SourceValue=3D"0" HasSpace=3D"False" Negative=3D"False" NumberType=3D"1" =
TCSC=3D"0">0F</st1:chmetcnv>9H,<st1:chmetcnv w:st=3D"on" UnitName=3D"a"=20
SourceValue=3D"0" HasSpace=3D"False" Negative=3D"False" NumberType=3D"1" =
TCSC=3D"0">0A</st1:chmetcnv>4H,0B0H,99H,92H,82H,<st1:chmetcnv =
w:st=3D"on"=20
UnitName=3D"F" SourceValue=3D"0" HasSpace=3D"False" Negative=3D"False" =
NumberType=3D"1"=20
TCSC=3D"0">0F</st1:chmetcnv>8H,80H,90H<BR>END<o:p></o:p></SPAN></SPAN></P=
>
<P></P>
<P class=3DTextInfo>=CF=B5=CD=B3=B7=D6=C0=E0: <A=20
href=3D"http://blog.ednchina.com/10042/Category.aspx">=B5=A5=C6=AC=BB=FA<=
/A> | =D3=C3=BB=A7=B7=D6=C0=E0:=20
=CE=DE=B7=D6=C0=E0 | =C0=B4=D4=B4:=20
=D4=AD=B4=B4 | <A id=3DaRecommend=20
href=3D"http://article.ednchina.com/tools/mail.aspx?type=3Dblog&id=3D=
93156">=A1=BE=CD=C6=BC=F6=B8=F8=C5=F3=D3=D1=A1=BF</A>=20
</P></DIV>
<DIV class=3Dclear></DIV></DIV>
<DIV=20
class=3DDiaryInfo> =D4=C4=B6=C1(176) &n=
bsp; =BB=D8=B8=B4(0) =20
</DIV></DIV><!--=CD=B6=C6=B1-->
<DIV style=3D"DISPLAY: none; PADDING-BOTTOM: 10px">
<P><A href=3D"http://blog.ednchina.com/Bentlet/93156/"><IMG=20
src=3D"http://blog.ednchina.com/images/vote.gif" =
align=3DabsMiddle></A><SPAN=20
style=3D"PADDING-LEFT: =
15px">=CD=B6=D2=BB=C6=B1=C4=FA=BD=AB=BA=CD=B2=A9=D6=F7=B6=BC=D3=D0=BB=F1=BD=
=B1=BB=FA=BB=E1=A3=A1</SPAN></P></DIV>
<DIV id=3DComment>
<DIV id=3DCommentTitle>
<H2 style=3D"FLOAT: left">=D7=EE=D0=C2=C6=C0=C2=DB </H2>
<P=20
style=3D"PADDING-LEFT: 15px; FONT-WEIGHT: normal; FONT-SIZE: 11px; =
FLOAT: left; LETTER-SPACING: 1px"> <A=20
class=3Dred =
title=3D=BB=B6=D3=AD=B2=CE=BC=D32008=CE=D2=B5=C4=B9=A4=B3=CC=CA=A6=C9=E7=C7=
=F8=20
href=3D"http://2008.ednchina.com/competition/Default.aspx">=BB=B6=D3=AD=B2=
=CE=BC=D32008=CE=D2=B5=C4=B9=A4=B3=CC=CA=A6=C9=E7=C7=F8=BB=EE=B6=AF,=D3=AE=
=C8=A1=CF=D6=BD=F0=B4=F3=BD=B1</A>=20
</P></DIV>
<DIV class=3DContent>
<UL></UL></DIV>
<DIV class=3DFillIn><A name=3Dfeedback>
<TABLE id=3Dsimplyreply style=3D"MARGIN-LEFT: 30px">
<TBODY>
<TR>
<TD><SPAN style=3D"MARGIN-RIGHT: 30px">=B1=EA=CC=E2</SPAN> =
<SPAN><INPUT=20
=
id=3Dctl00_ctl00_SkinBody_Content_SimplyReplyControl_SubjectControl=20
style=3D"WIDTH: 350px" value=3Dre:DS18B20=B5=C4=CE=C2=B6=C8=BC=C6=20
=
name=3Dctl00$ctl00$SkinBody$Content$SimplyReplyControl$SubjectControl></S=
PAN>=20
</TD></TR>
<TR>
<TD><SPAN style=3D"MARGIN-RIGHT: 30px">=D0=D5=C3=FB</SPAN> =
<SPAN><INPUT=20
=
id=3Dctl00_ctl00_SkinBody_Content_SimplyReplyControl_UserNameControl=20
style=3D"WIDTH: 350px"=20
=
name=3Dctl00$ctl00$SkinBody$Content$SimplyReplyControl$UserNameControl></=
SPAN>=20
<SPAN=20
=
id=3Dctl00_ctl00_SkinBody_Content_SimplyReplyControl_RequiredFieldValidat=
or2=20
style=3D"VISIBILITY: hidden; COLOR: red">=B1=D8=CC=EE</SPAN> =
</TD></TR>
<TR>
<TD><SPAN style=3D"MARGIN-RIGHT: 30px">=D6=F7=D2=B3</SPAN> =
<SPAN><INPUT=20
=
id=3Dctl00_ctl00_SkinBody_Content_SimplyReplyControl_HomePageControl=20
style=3D"WIDTH: 350px"=20
=
name=3Dctl00$ctl00$SkinBody$Content$SimplyReplyControl$HomePageControl></=
SPAN>=20
</TD></TR>
<TR>
<TD><TEXTAREA =
id=3Dctl00_ctl00_SkinBody_Content_SimplyReplyControl_ContentControl =
style=3D"WIDTH: 350px; HEIGHT: 200px" =
name=3Dctl00$ctl00$SkinBody$Content$SimplyReplyControl$ContentControl></T=
EXTAREA>=20
</TD></TR>
<TR>
<TD>=D1=E9=D6=A4=C2=EB=A3=BA<INPUT=20
=
id=3Dctl00_ctl00_SkinBody_Content_SimplyReplyControl_EnterCodeControl=20
style=3D"WIDTH: 50px" maxLength=3D4=20
=
name=3Dctl00$ctl00$SkinBody$Content$SimplyReplyControl$EnterCodeControl> =
<IMG =
id=3Dctl00_ctl00_SkinBody_Content_SimplyReplyControl_DisplayCodeControl=20
style=3D"BORDER-TOP-WIDTH: 0px; BORDER-LEFT-WIDTH: 0px; =
BORDER-BOTTOM-WIDTH: 0px; BORDER-RIGHT-WIDTH: 0px"=20
=
src=3D"http://blog.ednchina.com/ValidateCode.aspx?code=3D42584F348B58375E=
">=20
<SPAN=20
=
id=3Dctl00_ctl00_SkinBody_Content_SimplyReplyControl_ValidateCodeControl =
style=3D"VISIBILITY: hidden; COLOR: =
red">=D1=E9=D6=A4=C2=EB=B2=BB=D5=FD=C8=B7</SPAN> </TD></TR>
<TR>
<TD><INPUT =
id=3Dctl00_ctl00_SkinBody_Content_SimplyReplyControl_Button1 =
onclick=3D'javascript:WebForm_DoPostBackWithOptions(new =
WebForm_PostBackOptions("ctl00$ctl00$SkinBody$Content$SimplyReplyControl$=
Button1", "", true, "Post", "", false, false))' type=3Dsubmit value=3D" =
=CC=E1 =BD=BB " =
name=3Dctl00$ctl00$SkinBody$Content$SimplyReplyControl$Button1>=20
</TD></TR></TBODY></TABLE></A></DIV></DIV></DIV></DIV></DIV>
<DIV style=3D"CLEAR: both"></DIV></DIV><!--=BD=E1=CA=F8--></DIV>
<SCRIPT type=3Dtext/javascript>
//<![CDATA[
var Page_Validators =3D new =
Array(document.getElementById("ctl00_ctl00_SkinBody_Content_SimplyReplyCo=
ntrol_RequiredFieldValidator2"), =
document.getElementById("ctl00_ctl00_SkinBody_Content_SimplyReplyControl_=
ValidateCodeControl"));
//]]>
</SCRIPT>
<SCRIPT type=3Dtext/javascript>
//<![CDATA[
var =
ctl00_ctl00_SkinBody_Content_SimplyReplyControl_RequiredFieldValidator2 =
=3D document.all ? =
document.all["ctl00_ctl00_SkinBody_Content_SimplyReplyControl_RequiredFie=
ldValidator2"] : =
document.getElementById("ctl00_ctl00_SkinBody_Content_SimplyReplyControl_=
RequiredFieldValidator2");
ctl00_ctl00_SkinBody_Content_SimplyReplyControl_RequiredFieldValidator2.c=
ontroltovalidate =3D =
"ctl00_ctl00_SkinBody_Content_SimplyReplyControl_UserNameControl";
ctl00_ctl00_SkinBody_Content_SimplyReplyControl_RequiredFieldValidator2.e=
rrormessage =3D "=B1=D8=CC=EE";
ctl00_ctl00_SkinBody_Content_SimplyReplyControl_RequiredFieldValidator2.v=
alidationGroup =3D "Post";
ctl00_ctl00_SkinBody_Content_SimplyReplyControl_RequiredFieldValidator2.e=
valuationfunction =3D "RequiredFieldValidatorEvaluateIsValid";
ctl00_ctl00_SkinBody_Content_SimplyReplyControl_RequiredFieldValidator2.i=
nitialvalue =3D "";
var ctl00_ctl00_SkinBody_Content_SimplyReplyControl_ValidateCodeControl =
=3D document.all ? =
document.all["ctl00_ctl00_SkinBody_Content_SimplyReplyControl_ValidateCod=
eControl"] : =
document.getElementById("ctl00_ctl00_SkinBody_Content_SimplyReplyControl_=
ValidateCodeControl");
ctl00_ctl00_SkinBody_Content_SimplyReplyControl_ValidateCodeControl.contr=
oltovalidate =3D =
"ctl00_ctl00_SkinBody_Content_SimplyReplyControl_EnterCodeControl";
ctl00_ctl00_SkinBody_Content_SimplyReplyControl_ValidateCodeControl.valid=
ationGroup =3D "Post";
//]]>
</SCRIPT>
<DIV><INPUT id=3D__SCROLLPOSITIONX type=3Dhidden value=3D0 =
name=3D__SCROLLPOSITIONX>=20
<INPUT id=3D__SCROLLPOSITIONY type=3Dhidden value=3D0 =
name=3D__SCROLLPOSITIONY> </DIV>
<SCRIPT type=3Dtext/javascript>
<!--
var Page_ValidationActive =3D false;
if (typeof(ValidatorOnLoad) =3D=3D "function") {
ValidatorOnLoad();
}
function ValidatorOnSubmit() {
if (Page_ValidationActive) {
return ValidatorCommonOnSubmit();
}
else {
return true;
}
}
// -->
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