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📄 c51编程一个max7219的c程序.mht

📁 MAX7219的C源码
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<DIV class=3Dmodbox id=3Dm_blog>
<DIV =
class=3Dtit>C51=B1=E0=B3=CC:=D2=BB=B8=F6MAX7219=B5=C4c=B3=CC=D0=F2</DIV>
<DIV class=3Ddate>2005-07-25 18:07</DIV>
<TABLE style=3D"TABLE-LAYOUT: fixed">
  <TBODY>
  <TR>
    <TD>
      <DIV class=3Dcnt>
      <P><SPAN><BR><BR></SPAN><BR><BR></P>
      <H3><SPAN>C51=B1=E0=B3=CC:=D2=BB=B8=F6MAX7219=B5=C4c=B3=CC=D0=F2 =
[sujianyu] <SPAN=20
      style=3D"COLOR: #d5d5d5">2005-4-22 17:35:26</SPAN></SPAN></H3>
      <P>/*--------------------------------------------------------- =
<BR><BR>*=20
      =B3=CC=D0=F2=CB=B5=C3=F7 * <BR><BR>* =
1=A1=A2=B1=BE=B3=CC=D0=F2=D2=D1=BE=AD=CD=A8=B9=FD=B2=E2=CA=D4=A3=AC=B7=C7=
=B3=A3=BA=C3=D3=C3=A3=BB * <BR><BR>* =
2=A1=A2=D4=DA=B7=C7=D2=EB=C2=EB=B7=BD=CA=BD=CF=C2=B1=E0=C2=EB=BA=CD=D2=BB=
=B0=E3=CA=E9=C9=CF=D0=B4=B5=C4=B2=BB=D2=BB=D1=F9=A3=AC=C7=EB=D7=A2=D2=E2=A3=
=BB=20
      * <BR><BR>* =
3=A1=A2=C3=BF=B4=CE=CB=CD=CF=D4=CA=BE=B5=C4=CA=B1=BA=F2=CF=C8=B3=F5=CA=BC=
=BB=AF=D2=BB=B4=CE=A3=BB * <BR><BR>* =
4=A1=A2=D4=DA=C9=E8=BC=C6=B5=E7=C2=B7=BB=F2=D6=C6=D7=F7=CA=D4=D1=E9=B0=E5=
=CA=B1=D7=A2=D2=E2=CC=ED=BC=D3Vcc=B5=BDGND=D6=AE=BC=E4=B5=C4=B5=E7=C8=DD=A3=
=AC*=20
      <BR><BR>* =
=D2=BB=B8=F610vF=B5=C4=B5=E7=BD=E2=B5=E7=C8=DD=BA=CD0.1vF=B5=C4=CC=D5=B4=C9=
=B5=E7=C8=DD=A1=A3=B2=A2=D4=DADIN=A1=A2LOAD=A1=A2* <BR><BR>*=20
      =
CLK=B5=BDGND=D6=AE=BC=E4=BD=D3=C8=EB30pF=B5=C4=B4=C9=C6=AC=B5=E7=C8=DD=A1=
=A3 * <BR><BR>* * <BR><BR>* =
=B3=CC=D0=F2=CC=E1=B9=A9=C8=CB=A3=BA=CB=D5=BD=A8=D3=EE * <BR><BR>* *=20
      <BR><BR>* *=20
      =
<BR><BR>----------------------------------------------------------*/=20
      <BR><BR><BR><BR>#include &lt;AT89X51.H&gt; <BR><BR>#include=20
      &lt;intrins.h&gt; <BR><BR>//#include &lt;absacc.h&gt;=20
      <BR><BR>/*--------------------------------------------------*/=20
      <BR><BR>sbit dis_DIN=3DP1^0; =
/*=CF=D4=CA=BE=B4=AE=D0=D0=CA=FD=BE=DD=CA=E4=C8=EB=B6=CB*/ <BR><BR>sbit =
dis_LOAD=3DP1^1;=20
      /*=CF=D4=CA=BE=CA=FD=BE=DD=CB=F8=B4=E6=B6=CB*/ <BR><BR>sbit =
dis_CLK=3DP1^2; /*=CF=D4=CA=BE=CA=B1=D6=D3=CA=E4=C8=EB=B6=CB*/ =
<BR><BR><BR><BR>#define=20
      NoOp 0x00 /*=BF=D5=B2=D9=D7=F7*/ <BR><BR>#define Digit0 0x01 =
/*=CA=FD=C2=EB=B9=DC1*/ <BR><BR>#define=20
      Digit1 0x02 /*=CA=FD=C2=EB=B9=DC2*/ <BR><BR>#define Digit2 0x03 =
/*=CA=FD=C2=EB=B9=DC3*/ <BR><BR>#define=20
      Digit3 0x04 /*=CA=FD=C2=EB=B9=DC4*/ <BR><BR>#define Digit4 0x05 =
/*=CA=FD=C2=EB=B9=DC5*/ <BR><BR>#define=20
      Digit5 0x06 /*=CA=FD=C2=EB=B9=DC6*/ <BR><BR>#define Digit6 0x07 =
/*=CA=FD=C2=EB=B9=DC7*/ <BR><BR>#define=20
      Digit7 0x08 /*=CA=FD=C2=EB=B9=DC8*/ <BR><BR>#define DecodeMode =
0x09 /*=D2=EB=C2=EB=C4=A3=CA=BD*/=20
      <BR><BR>#define Intensity 0x0a /*=C1=C1=B6=C8*/ <BR><BR>#define =
ScanLimit 0x0b=20
      /*=C9=A8=C3=E8=BD=E7=CF=DE*/ <BR><BR>#define ShutDown 0x0c =
/*=B5=F4=B5=E7=C4=A3=CA=BD*/ <BR><BR>#define=20
      DisplayTest 0x0f /*=CF=D4=CA=BE=B2=E2=CA=D4*/ =
<BR><BR><BR><BR>#define ShutdownMode 0x00=20
      /*=B5=F4=B5=E7=B7=BD=CA=BD=B9=A4=D7=F7*/ <BR><BR>#define =
NormalOperation 0x01 /*=D5=FD=B3=A3=B2=D9=D7=F7=B7=BD=CA=BD*/=20
      <BR><BR><BR><BR>#define DecodeDigit 0xff =
/*=D2=EB=C2=EB=CE=BB=CA=FD=C9=E8=D6=C3*/=20
      <BR><BR><BR><BR>#define IntensityGrade 0x0a =
/*=CF=D4=CA=BE=C1=C1=B6=C8=BC=B6=B1=F0=C9=E8=D6=C3*/=20
      <BR><BR><BR><BR>#define ScanDigit 0x07 =
/*=C9=A8=C3=E8=CE=BB=CA=FD=C9=E8=D6=C3*/ <BR><BR><BR><BR>#define=20
      TestMode 0x01 /*=CF=D4=CA=BE=B2=E2=CA=D4=B7=BD=CA=BD*/ =
<BR><BR>#define TextEnd 0x00 =
/*=CF=D4=CA=BE=B2=E2=CA=D4=BD=E1=CA=F8=A3=AC=D5=FD=B3=A3=B9=A4=D7=F7*/=20
      <BR><BR><BR><BR>unsigned char data =
DisBuffer[8]=3D{0,0,0,0,0,0,0,0};=20
      /*=CF=D4=CA=BE=BB=BA=B4=E6=C7=F8*/ <BR><BR><BR><BR>unsigned char =
code dispaly_list[]=3D <BR><BR>{=20
      <BR><BR>0x7e,0x30,0x6d,0x79,0x33,0x5b,0x5f,0x70,0x7f,0x7b,=20
      /*0,1,2,3,4,5,6,7,8,9*/=20
      <BR><BR>0x77,0x1f,0x4e,0x3d,0x4f,0x47,0x67,0x3e,0xff,0x00};=20
      /*A,B,C,D,E,F,P,U,=C8=AB <BR><BR>=C1=C1,=C8=AB=C3=F0*/=20
      =
<BR><BR><BR><BR>/*-------------------------------------------------------=
-=20
      <BR><BR>10ms=D1=D3=CA=B1=D7=D3=B3=CC=D0=F2=20
      =
<BR><BR>---------------------------------------------------------*/=20
      <BR><BR>void delayX10ms(unsigned char count) <BR><BR>{ =
<BR><BR>unsigned=20
      char j,k; <BR><BR>while(count--!=3D0) <BR><BR>{ =
<BR><BR>for(j=3D0;j&lt;43;j++)=20
      <BR><BR>for(k=3D0;k&lt;73;k++) <BR><BR>; <BR><BR>} <BR><BR>}=20
      =
<BR><BR><BR><BR>/*-------------------------------------------------=20
      <BR><BR>=CF=F2MAX7219=D0=B4=C8=EB=D7=D6=BD=DA=A3=A88=CE=BB=A3=A9=20
      <BR><BR>--------------------------------------------------*/ =
<BR><BR>void=20
      SendChar (unsigned char ch) <BR><BR>{ <BR><BR>unsigned char =
i,temp;=20
      <BR><BR>_nop_(); <BR><BR>for (i=3D0;i&lt;8;i++) <BR><BR>{=20
      <BR><BR>temp=3Dch&amp;0x80; <BR><BR>ch=3Dch&lt;&lt;1; =
<BR><BR>if(temp)=20
      <BR><BR>{ <BR><BR>dis_DIN=3D1; <BR><BR>dis_CLK=3D0; =
<BR><BR>dis_CLK=3D1;=20
      <BR><BR>} <BR><BR>else <BR><BR>{ <BR><BR>dis_DIN=3D0; =
<BR><BR>dis_CLK=3D0;=20
      <BR><BR>dis_CLK=3D1; <BR><BR>} <BR><BR>} <BR><BR>}=20
      =
<BR><BR><BR><BR>/*-------------------------------------------------=20
      <BR><BR>=CF=F2MAX7219=D0=B4=C8=EB=D7=D6=A3=A816=CE=BB=A3=A9=20
      <BR><BR>-------------------------------------------------*/ =
<BR><BR>void=20
      WriteWord (unsigned char addr,unsigned char num) <BR><BR>{=20
      <BR><BR>dis_LOAD=3D0; <BR><BR>_nop_(); <BR><BR>SendChar (addr);=20
      <BR><BR>_nop_(); <BR><BR>SendChar (num); <BR><BR>_nop_();=20
      <BR><BR>dis_LOAD=3D1; <BR><BR>}=20
      =
<BR><BR><BR><BR>/*-------------------------------------------------=20
      <BR><BR>MAX7219=B3=F5=CA=BC=BB=AF=20
      <BR><BR>-------------------------------------------------*/ =
<BR><BR>void=20
      InitDis (void) <BR><BR>{ <BR><BR>WriteWord (ScanLimit,ScanDigit);=20
      /*=C9=E8=D6=C3=C9=A8=C3=E8=BD=E7=CF=DE*/ <BR><BR>WriteWord =
(DecodeMode,DecodeDigit); /*=C9=E8=D6=C3=D2=EB=C2=EB=C4=A3=CA=BD*/=20
      <BR><BR>WriteWord (Intensity,IntensityGrade); =
/*=C9=E8=D6=C3=C1=C1=B6=C8*/ <BR><BR>WriteWord=20
      (ShutDown,NormalOperation); =
/*=C9=E8=D6=C3=B5=E7=D4=B4=B9=A4=D7=F7=C4=A3=CA=BD*/ <BR><BR>}=20
      =
<BR><BR><BR><BR>/*-------------------------------------------------=20
      <BR><BR>=CF=B5=CD=B3=C9=CF=B5=E7=B3=F5=CA=BC=BB=AF=20
      <BR><BR>-------------------------------------------------*/ =
<BR><BR>void=20
      InitMain (void) <BR><BR>{ <BR><BR>IE=3D0x00; =
/*=C9=E8=D6=C3=D6=D0=B6=CF=D4=CA=D0=ED=BC=C4=B4=E6=C6=F7*/ =
<BR><BR>IP=3D0x00;=20
      =
/*=C9=E8=D6=C3=D6=D0=B6=CF=D3=C5=CF=C8=BC=B6=B9=DC=C0=ED=BC=C4=B4=E6=C6=F7=
*/ <BR><BR>TH0=3D0xd8; =
/*=C9=E8=B6=A8=CA=B1=C6=F7=B3=F5=D6=B5=A3=AC10ms*/ <BR><BR>TL0=3D0xf0;=20
      <BR><BR>TMOD=3D0x01; /*T1 =
=B6=A8=CA=B1=C6=F7=C4=A3=CA=BD2=A3=AC=B2=A8=CC=D8=C2=CA=B7=A2=C9=FA=C6=F7=
=A3=ACT0 =B6=A8=CA=B1=C6=F7=C4=A3=CA=BD1*/ <BR><BR>TCON=3D0x11;=20
      =
/*=C9=E8=D6=C3=B6=A8=CA=B1=C6=F7=BF=D8=D6=C6=BC=C4=B4=E6=C6=F7,INT0=C9=E8=
=D6=C3=CE=AA=B1=DF=D1=D8=B4=A5=B7=A2=B7=BD=CA=BD*/ <BR><BR>PSW=3D0x00; =
<BR><BR>}=20
      =
<BR><BR><BR><BR>/*-------------------------------------------------=20
      <BR><BR>=D6=F7=BA=AF=CA=FD =
<BR><BR>-------------------------------------------------*/=20
      <BR><BR>void main(void) <BR><BR>{ <BR><BR>InitMain (); =
<BR><BR>InitDis ();=20
      <BR><BR>WriteWord (DisplayTest,TestMode); =
<BR><BR>delayX10ms(0x64);=20
      <BR><BR>delayX10ms(0x64); <BR><BR>WriteWord (DisplayTest,TextEnd); =

      <BR><BR><BR><BR>while(1) <BR><BR>{ <BR><BR>unsigned char i; =
<BR><BR>for=20
      (i=3D0;i&lt;=3D9;i++) <BR><BR>{ <BR><BR>delayX10ms(0x64);=20
      <BR><BR>delayX10ms(0x64); <BR><BR>InitDis (); =
<BR><BR>DisBuffer[0]=3Di;=20
      <BR><BR>DisBuffer[1]=3Di; <BR><BR>DisBuffer[2]=3Di; =
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