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#include<reg52.h>
#include<intrins.h>
//#include<stdlib.h> //rand（）；
#define uint unsigned int
#define uchar unsigned char
#define LCD_data P0;
sbit LCD_RS =P2^6;
sbit LCD_RW =P2^5;
sbit LCD_EN =P2^7;
sbit LCD_PSB = P3^2;
sbit wela =P1^2;
sbit dula=P1^3;
//uchar dis1[10];
uchar code dis1[]={"床前明月光，"};
uchar code dis2[]={"疑是地上霜。"};
uchar code dis3[]={"舉頭望明月，"};
uchar code dis4[]={"低頭思故鄉(xiāng)。"};
void delay_1ms(uint x)
{
uint i,j;
for(j=0;j<x;j++)
for(i=0;i<110;i++);
}
void write_cmd(uchar cmd)
{
LCD_RS=0;
LCD_RW=0;
LCD_EN=0;
P0=cmd;
delay_1ms(5);
LCD_EN = 1;
delay_1ms(5);
LCD_EN= 0;
}
void write_dat(uchar dat)
{
LCD_RS = 1;
LCD_RW= 0;
LCD_EN= 0;
P0=dat;
delay_1ms(5);
LCD_EN= 1;
delay_1ms(5);
LCD_EN= 0;
}
void lcd_pos(uchar X,uchar Y)
{
uchar pos;
if(X==0)
{X=0x80;}
else if(X==1)
{X=0x90;}
else if(X==2)
{X=0x88;}
else if(X==3)
{X=0x98;}
pos= X+Y;
write_cmd(pos);
}
void lcd_init()
{
LCD_PSB=1;
write_cmd(0x30);
delay_1ms(5);
write_cmd(0x0c);
delay_1ms(5);
write_cmd(0x01);
delay_1ms(5);
}
void main()
{
uchar i;
wela=0;
dula=0;
delay_1ms(5);
lcd_init();
while(1)
{
lcd_pos(0,0);
i=0;
while(dis1[i]!='\0')
{
write_dat(dis1[i]);
i++;
}
lcd_pos(1,0);
i=0;
while(dis2[i]!='\0')
{
write_dat(dis2[i]);
i++;
}
delay_1ms(10);
lcd_pos(2,0);
i=0;
while(dis3[i]!='\0')
{
write_dat(dis3[i]);
i++;
}
delay_1ms(10);
lcd_pos(3,0);
i=0;
while(dis4[i]!='\0')
{
write_dat(dis4[i]);
i++;
}
delay_1ms(10);
}
//delay_1ms(10);
}
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