📄 计算机并口模拟i2c总线的试验源程序.mht
字号:
From: <由 Microsoft Internet Explorer 5 保存>
Subject: =?gb2312?B?tefX08rAvec=?=
Date: Sat, 26 Oct 2002 21:11:08 +0800
MIME-Version: 1.0
Content-Type: multipart/related;
boundary="----=_NextPart_000_0000_01C27D34.34632780";
type="text/html"
X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000
This is a multi-part message in MIME format.
------=_NextPart_000_0000_01C27D34.34632780
Content-Type: text/html;
charset="gb2312"
Content-Transfer-Encoding: quoted-printable
Content-Location: http://www.eleworld.com/ml200209_p2.htm
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD><TITLE>=B5=E7=D7=D3=CA=C0=BD=E7</TITLE>
<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Dgb2312"><LINK=20
href=3D"http://www.eleworld.com/css.css" type=3Dtext/css =
rel=3Dstylesheet>
<META content=3D"MSHTML 6.00.2600.0" name=3DGENERATOR></HEAD>
<BODY text=3D#000000 bgColor=3D#ffffff leftMargin=3D0 topMargin=3D0>
<TABLE cellSpacing=3D0 cellPadding=3D0 width=3D750 align=3Dcenter =
border=3D0>
<TBODY>
<TR>
<TD vAlign=3Dtop align=3Dmiddle width=3D750 height=3D16><IMG =
height=3D22=20
src=3D"http://www.eleworld.com/images/HTTP.gif"=20
width=3D760></TD></TR></TBODY></TABLE>
<TABLE cellSpacing=3D0 cellPadding=3D0 width=3D760 align=3Dcenter =
border=3D0>
<TBODY>
<TR>
<TD vAlign=3Dtop width=3D12 height=3D74> </TD>
<TD vAlign=3Dcenter width=3D200><IMG height=3D60=20
src=3D"http://www.eleworld.com/images/logo.jpg" width=3D200=20
align=3DabsMiddle></TD>
<TD vAlign=3Dtop width=3D11> </TD>
<TD vAlign=3Dcenter width=3D50><IMG height=3D58=20
src=3D"http://www.eleworld.com/images/logo2.gif" width=3D61></TD>
<TD vAlign=3Dtop width=3D9> </TD>
<TD vAlign=3Dtop width=3D40><IMG height=3D73=20
src=3D"http://www.eleworld.com/images/logo1.gif" width=3D61></TD>
<TD vAlign=3Dtop width=3D9> </TD>
<TD vAlign=3Dcenter align=3Dmiddle width=3D401>
<OBJECT=20
=
codeBase=3Dhttp://download.macromedia.com/pub/shockwave/cabs/flash/swflas=
h.cab#version=3D5,0,0,0=20
height=3D70 width=3D400 =
classid=3Dclsid:D27CDB6E-AE6D-11cf-96B8-444553540000><PARAM =
NAME=3D"movie" VALUE=3D"dtlogo.swf"><PARAM NAME=3D"quality" =
VALUE=3D"high">
<embed src=3D"dtlogo.swf" quality=3Dhigh=20
=
pluginspage=3D"http://www.macromedia.com/shockwave/download/index.cgi?P1_=
Prod_Version=3DShockwaveFlash"=20
type=3D"application/x-shockwave-flash" width=3D"400" =
height=3D"70"> =20
</embed> </OBJECT></TD></TR></TBODY></TABLE>
<TABLE cellSpacing=3D0 cellPadding=3D0 width=3D760 align=3Dcenter =
border=3D0>
<TBODY>
<TR>
<TD vAlign=3Dtop colSpan=3D2 height=3D20>
<TABLE cellSpacing=3D0 cellPadding=3D0 width=3D"100%" border=3D0>
<TBODY>
<TR>
<TD vAlign=3Dbottom width=3D191 bgColor=3D#d5eae8 =
height=3D20>=A1=A1=BD=F1=CC=EC=CA=C7
<SCRIPT language=3DJavaScript>
today=3Dnew Date();
function initArray(){
this.length=3DinitArray.arguments.length
for(var i=3D0;i<this.length;i++)
this[i+1]=3DinitArray.arguments[i] }
var d=3Dnew initArray(
"=D0=C7=C6=DA=C8=D5",
"=D0=C7=C6=DA=D2=BB",
"=D0=C7=C6=DA=B6=FE",
"=D0=C7=C6=DA=C8=FD",
"=D0=C7=C6=DA=CB=C4",
"=D0=C7=C6=DA=CE=E5",
"=D0=C7=C6=DA=C1=F9");
document.write(
"<font color=3D##000000 style=3D'font-size:9pt;font-family: =
=CB=CE=CC=E5'> ",
today.getYear(),"=C4=EA",
today.getMonth()+1,"=D4=C2",
today.getDate(),"=C8=D5",
d[today.getDay()+1],
"</font>" );=20
</SCRIPT>
</TD></TR></TBODY></TABLE></TD>
<TD vAlign=3Dtop width=3D569>
<TABLE cellSpacing=3D0 cellPadding=3D0 width=3D"100%" border=3D0>
<TBODY>
<TR>
<TD vAlign=3Dbottom width=3D569=20
background=3Dhttp://www.eleworld.com/images/menu1.gif =
height=3D20>
<P><FONT color=3D#000066>=A1=A1 | <A=20
href=3D"http://www.eleworld.com/index.html">=CA=D7=D2=B3</A> =
| <A=20
=
href=3D"http://www.eleworld.com/zzjj.htm">=D4=D3=D6=BE=BC=F2=BD=E9</A> | =
<A=20
=
href=3D"http://www.eleworld.com/zzdy.htm">=D4=D3=D6=BE=B6=A9=D4=C4</A> | =
<A=20
=
href=3D"http://www.eleworld.com/ggyw.htm">=B9=E3=B8=E6=D2=B5=CE=F1</A> | =
<A=20
=
href=3D"http://www.eleworld.com/dzfwb.htm">=B6=C1=D5=DF=B7=FE=CE=F1=B2=BF=
</A> | <A=20
=
href=3D"http://www.eleworld.com/lxwm.htm">=C1=AA=CF=B5=CE=D2=C3=C7</A>=20
|</FONT></P></TD></TR></TBODY></TABLE></TD></TR>
<TR>
<TD vAlign=3Dtop colSpan=3D3 height=3D20>
<TABLE cellSpacing=3D0 cellPadding=3D0 width=3D"100%" border=3D0>
<TBODY>
<TR>
<TD vAlign=3Dbottom align=3Dright width=3D760 =
height=3D20>=B5=B1=C7=B0=CE=BB=D6=C3=A3=BA<A=20
href=3D"http://www.eleworld.com/index.html">=CA=D7=D2=B3</A> =
>=A1=A1=D4=D3=D6=BE=C4=BF=C2=BC<FONT=20
=
color=3D#000000></FONT>=A1=A1</TD></TR></TBODY></TABLE></TD></TR>
<TR vAlign=3Dbottom>
<TD vAlign=3Dtop colSpan=3D3 height=3D20>=A1=A1<IMG height=3D10=20
src=3D"http://www.eleworld.com/images/ani1.gif" width=3D11><FONT=20
color=3D#000000>=CF=E0=B9=D8=D4=B4=B3=CC=D0=F2</FONT></TD></TR>
<TR>
<TD vAlign=3Dtop width=3D98 bgColor=3D#f7fdff =
height=3D1504> </TD>
<TD vAlign=3Dtop bgColor=3D#f7fdff colSpan=3D2>
<P =
align=3Dcenter><B>=BC=C6=CB=E3=BB=FA=B2=A2=BF=DA=C4=A3=C4=E2I2C=D7=DC=CF=DF=
=B5=C4=CA=D4=D1=E9=D4=B4=B3=CC=D0=F2</B></P>
<P =
align=3Dleft><BR>=D4=B4=B3=CC=D0=F2=C8=E7=CF=C2=A3=BA<BR>#include =
"stdio.h"<BR>#include=20
"dos.h"<BR>#include "conio.h"</P>
<P>/***********void i2cstart()***********/<BR>void=20
i2cstart(){<BR>outportb(0x378,0xff);/*scl 1, sda=20
1*/<BR>delay(1);/**/<BR>outportb(0x378,0xfd);/*scl 1, sda=20
0*/<BR>delay(1);/**/<BR>outportb(0x378,0xfc);/*scl 0, sda=20
0*/<BR>delay(1);<BR>}</P>
<P>/***********void i2cstop()***********/<BR>void=20
i2cstop(){<BR>outportb(0x378,0xfc);/*scl 0, sda=20
0*/<BR>delay(1);/**/<BR>outportb(0x378,0xfd);/*scl 1, sda=20
0*/<BR>delay(1);/***/<BR>outportb(0x378,0xff);/*scl 1, sda=20
1*/<BR>delay(1);/**/<BR>outportb(0x378,0xfe);/*scl 0, sad =
1*/<BR>}</P>
<P>/***********writebyte()***********/<BR>writebyte(char =
s){<BR>short int=20
a=3D7;<BR>char d,e;<BR>outportb(0x378,0xfc);/*scl 0, sda=20
0*/<BR>delay(1);/***/<BR>while(a>=3D0){</P>
<P>d=3Ds>>a; d=3Dd<<7;</P>
<P>if =
(d=3D=3D'\x80')/*****"1"***/<BR>{<BR>outportb(0x378,0xfe);/*scl 0, sda=20
1*/<BR>delay(1);/***/<BR>outportb(0x378,0xff);/*scl 1, sda=20
1*/<BR>}<BR>else<BR>{<BR>outportb(0x378,0xfc);/*scl 0, sda=20
0*/<BR>delay(1);/***/<BR>outportb(0x378,0xfd);/*scl 1, sda =
0*/<BR>}</P>
=
<P>a=3D(a-1);<BR>}<BR>/**ask**/<BR>delay(1);/***/<BR>outportb(0x378,0xfe)=
;/*scl=20
0, sda 1*/<BR>delay(1);/***/<BR>outportb(0x378,0xff);/*scl 1, sda=20
1*/<BR>delay(1);/***/<BR>outportb(0x378,0xfc);/*scl 0, sda=20
1*/<BR>delay(1);/***/<BR>e=3Dinportb(0x379); d=3De>>4;=20
d=3Dd<<7;<BR>if (d=3D=3D'\x0') return =
0;<BR>else<BR>printf("not=20
acknowledge!\n");<BR>return 1;<BR>}</P>
<P>/***********readbyte()***************/</P>
<P>char readbyte(){<BR>unsigned short a=3D8;<BR>char=20
=
d,e,f=3D'\x0';<BR>while(a>0){<BR>delay(1);/***/<BR>outportb(0x378,0xfe=
);/*scl=20
0, sda 1*/<BR>delay(1);/***/<BR>outportb(0x378,0xff);/*scl 1, sda=20
1*/<BR>delay(1);/***/<BR>e=3Dinportb(0x379); d=3De>>4; =
d=3Dd<<7;</P>
<P>if(d=3D=3D'\x80') d=3D'\x1';</P>
<P>f=3Df<<1; f=3D(f+d); a=3D(a-1);</P>
<P>outportb(0x378,0xfe);/*scl 0, sda =
1*/<BR>delay(1);/***/<BR>}</P>
<P>return f;<BR>}</P>
=
<P>/************mainask()*****************/<BR>mainask(){<BR>delay(1);/**=
/<BR>outportb(0x378,0xfc);/*scl=20
0, sda 0*/<BR>delay(1);/**/<BR>outportb(0x378,0xfd);/*scl 1, sda=20
0*/<BR>delay(1);<BR>outportb(0x378,0xfc);/*scl 0, sda 0*/<BR>}</P>
<P>/*************************************/</P>
<P>main(){<BR>unsigned short a,b,c,g;<BR>char=20
d,e,f;<BR>textcolor(2);<BR>clrscr();</P>
<P>printf("press 'r' or 'w'=20
:");<BR>scanf("%c",&f);<BR>if(f=3D=3D'w')<BR>{</P>
<P>/************ W 256 BYTES ****/<BR>e=3D'\x0'; c=3D32; /* =
24lc02: 32=3D256/8=20
*/<BR>while(c>0){<BR>i2cstart();/*****start****/</P>
<P>writebyte('\xa0');/***send contbyte***/</P>
<P>writebyte(e);/***send start address***/</P>
<P>/************W 8 bytes****/<BR>b=3D8; d=3D'\x0'; /* num=20
*/<BR>while(b>0){<BR>if ((writebyte(d))=3D=3D1) =
exit(0);/***send a=20
byte***/<BR>b=3D(b-1);d=3D(d+1);<BR>}<BR>i2cstop();<BR>delay(40); =
/****writer=20
delay****/<BR>c=3D(c-1);e=3D(e+8);<BR>}</P>
<P>printf("write ok!!\n"); exit(0);</P>
<P>}</P>
<P><BR>if(f=3D=3D'r')<BR>{</P>
<P>/****** read =
***********************************/<BR>printf("please=20
import start address:");<BR>scanf("%x",&b);<BR>a=3D(256-b); =
c=3D(a%8);=20
a=3D(a/8);</P>
<P>while(a>0){<BR>g=3D8;</P>
<P><BR>i2cstart();/*****start****/</P>
<P>writebyte('\xa0');/***send=20
contbyte***/<BR>d=3D(char)b;/****/<BR>writebyte(d);/***send start=20
=
address***/<BR>i2cstart();/*****start****/<BR>writebyte('\xa1');/***send =
contbyte***/</P>
=
<P>while(g>0){<BR>d=3Dreadbyte();<BR>if(d=3D=3D'\xff')<BR>printf("=20
FF");<BR>else<BR>printf(" %.2X",d);<BR>g=3D(g-1); if(g>0)=20
mainask();<BR>b=3D(b+1);<BR>}<BR>i2cstop();</P>
<P>a=3D(a-1);</P>
<P>}<BR>while(c>0){<BR>i2cstart();/*****start****/</P>
<P>writebyte('\xa0');/***send=20
contbyte***/<BR>d=3D(char)b;/****/<BR>writebyte(d);/***send start=20
=
address***/<BR>i2cstart();/*****start****/<BR>writebyte('\xa1');/***send =
contbyte***/<BR>d=3Dreadbyte();<BR>if(d=3D=3D'\xff')<BR>printf("=20
FF");<BR>else<BR>printf(" %.2X",d);<BR>c=3D(c-1); if(c>0)=20
mainask();<BR>}<BR>printf("\nREAD =
OK!\n");<BR>exit(0);<BR>}<BR>else=20
{printf("\nCommand Error!!!"); exit(0);}</P>
<P>}</P>
<P>=D2=D4=C9=CF=B3=CC=D0=F2=CA=C7=D4=DA Tubor C 2.0 =
=BB=B7=BE=B3=CF=C2=B1=E0=D2=EB=CD=A8=B9=FD=B5=C4=A3=AC=D4=CB=D0=D0=BD=E1=B9=
⌨️ 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 + -