📄 st7920v33_show(c).mht
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Date: Thu, 29 May 2008 17:12:05 +0800
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=3DContent-Type content=3D"text/html; charset=3Dgb2312">
<META content=3D"MSHTML 6.00.6000.16643" name=3DGENERATOR></HEAD>
<BODY><PRE>#pragma SMALL
#pragma DEBUG
#include <reg51.h>
#include <absacc.h>
#include <intrins.h>
#include <stdio.h>
#define SET 1
#define RESET 0
sbit rs=3DP3^2;
sbit rw=3DP3^3;
sbit e=3DP3^4;
unsigned char code initda[]=3D{0x08,0x01,0x02,0x10,0x38,0x0c,0x80};
unsigned char code initda2[]=3D{0x0c,0x34,0x06,0x03,0x40};
unsigned char code =
disdata1[]=3D{0xba,0xc0,0xba,0xc1,0xba,0xc2,0xba,0xc3,0xba,0xc4,0xba,0xc5=
,0xba,0xc6,0xbf,0xc0,0xba,0xc7,0xba,0xc8,0xba,0xc3,0xba,0xc4,0xba,0xc5,0x=
ba,0xc6};
unsigned char code =
disdata2[]=3D{0xb9,0xe6,0xbc,0xc1,0xbc,0xc2,0xbc,0xc3,0xbc,0xc4,0xbc,0xc5=
,0xbc,0xc6,0xbe,0xc0,0xba,0xc9,0xba,0xca,0xba,0xc3,0xba,0xc4,0xba,0xc5,0x=
ba,0xc6};
void t()
{int i;
for(i=3D0;i<0xdf;i++)
_nop_();
}
void pr11(int j)
{rs=3DSET;
rw=3DRESET;
e=3DSET;
P1=3Dj;
t();
e=3DRESET;
rs=3DRESET;
rw=3DSET;
}
void pr12(int j)
{rs=3DRESET;
rw=3DRESET;
e=3DSET;
P1=3Dj;
t();
e=3DRESET;
rs=3DSET;
rw=3DSET;
}
void delay()
{int k;
for(k=3D0;k<8;k++)
{_nop_();
t();
}
}
main()
{int i;
P1=3DP1||0x00;
for(i=3D0;i<3;i++)
{rs=3DRESET;
rw=3DRESET;
e=3DSET;
delay();
P1=3D0x30;
e=3DRESET;
rs=3DSET;
rw=3DSET;}
for(i=3D0;i<7;i++)
pr12(initda[i]);
for(i=3D0;i<16;i++)
pr11(disdata1[i]);
pr12(0x90);
for(i=3D0;i<16;i++)
pr11(disdata2[i]);
for(i=3D0;i<5;i++)
pr12(initda2[i]);
while(1)
_nop_();
}
=1A</PRE></BODY></HTML>
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