lcd.c

在PROTEUS仿真实现

#include<reg51.h>
#include<intrins.h>
#define uchar unsigned char
#define uint  unsigned int
sbit en=P2^0;
sbit rw=P2^1;
sbit rs=P2^2;
sbit cs2=P2^3;
sbit cs1=P2^4;
sbit x1=P3^0;
sbit x2=P3^1;
sbit x3=P3^2;
sbit x4=P3^3;
sbit y1=P3^4;
sbit y2=P3^5;
sbit y3=P3^6;
void d_time(void)
{
  uchar i,j;
  for(i=0;i<100;i++)
   for(j=0;j<20;j++);
}
void cheak(void)
{
  uchar i;
  rs=0;
  rw=en=1;
  P0=0xff;
  do
  {
    i=P0;
	i&=0x80;
  }while(!i);
}
void wcmd(uchar i,bit a)
{
  cheak();
  if(a==0)
  {
    rw=rs=0;
	cs2=1;
	cs1=0;
  }
  else
  {
    rw=rs=0;
	cs2=0;
	cs1=1;
  }
  P0=i;
  en=1;
  _nop_();
  _nop_();
  en=0;
}
void wdata(uchar i)
{
  cheak();
  rs=1;
  rw=0;
  P0=i;
  en=1;
  _nop_();
  _nop_();
  en=0;
}
void set_xy(uchar x,uchar y,bit a)
{
  wcmd(0xb8+x,a);
  wcmd(0x40+y,a);
}
void picture(uchar pic[])
{
  uchar i,j;
  uint k=0;
  for(i=0;i<8;i++)
  {
    set_xy(i,0,0);
    for(j=0;j<64;j++)
	{
	  wdata(pic[k++]);
	}
	set_xy(i,0,1);
	for(j=64;j<128;j++)
	{
	  wdata(pic[k++]);
	}
  }
}
void clear(void)
{
  uchar i,j;
  for(i=0;i<8;i++)
  {
    set_xy(i,0,0);
	for(j=0;j<64;j++)wdata(0xff);
	set_xy(i,0,1);
	for(j=64;j<128;j++)wdata(0xff);
  }
}
uchar get_key(void)
{
  uchar i,j=1;
  P3=0xff;
  while(j)
  {
    y1=0;
	y2=y3=1;
	if(x1==0){d_time();if(x1==0){i=1;j=0;}}while(!x1);
	if(x2==0){d_time();if(x2==0){i=4;j=0;}}while(!x2);
	if(x3==0){d_time();if(x3==0){i=7;j=0;}}while(!x3);
	y2=0;
	y1=y3=1;
    if(x1==0){d_time();if(x1==0){i=2;j=0;}}while(!x1);
	if(x2==0){d_time();if(x2==0){i=5;j=0;}}while(!x2);
	if(x3==0){d_time();if(x3==0){i=8;j=0;}}while(!x3);
	if(x4==0){d_time();if(x4==0){i=0;j=0;}}while(!x4);
	y3=0;
	y1=y2=1;
	if(x1==0){d_time();if(x1==0){i=3;j=0;}}while(!x1);
	if(x2==0){d_time();if(x2==0){i=6;j=0;}}while(!x2);
	if(x3==0){d_time();if(x3==0){i=9;j=0;}}while(!x3);
  }
  return i;
}
uchar code temp[6][10]=
{
  0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
 10,11,12,13,14,15,16,17,18,19,
 20,21,22,23,24,25,26,27,28,29,
 30,31,32,33,34,35,36,37,38,39,
 40,41,42,43,44,45,46,47,48,49,
 50,51,52,53,54,55,56,57,58,59
};
uchar get_temper(void)
{
  uchar i,j,k;
  i=get_key();
  j=get_key();
  k=temp[i][j];
  return k;
}
uchar code bmp[]=
{
/*--  调入了一幅图像：E:\单片机资料文档\图片\坐标.bmp  --*/
/*--  宽度x高度=128x64  --*/
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0x45,0x7D,0x01,0x01,0x01,0x01,0x01,0x01,0x7D,0x01,0x01,0x7D,0x11,0x09,0x05,0x03
};