#include<reg52.h>
#define uchar unsigned char
#define uint unsigned int
uchar code table[]="I LIKE MCU!0123456789";
uchar code table1[]="AT89S52 abcdefghijklmnopqrstuvwxyz";
sbit lcden=P1^2;
sbit lcdrs=P1^0;
sbit lcdrw=P1^1;
uchar num;
void delay(uint z) //延时
{
uint x,y;
for(x=z;x>0;x--)
for(y=110;y>0;y--);
}
void write_com(uchar com) //写指令
{
lcdrw=0;
lcdrs=0;
lcden=0;
P0=com;
delay(5);
lcden=1;
delay(5);
lcden=0;
}
void write_data(uchar date) //写数据
{
lcdrw=0;
lcdrs=1;
lcden=0;
P0=date;
P2=date;
delay(5);
lcden=1;
delay(5);
lcden=0;
}
void init()
{ //初始化程序
lcdrw=0;
lcden=0;
write_com(0x38); //显示模式设置 命令6
write_com(0x08); //显示关闭
write_com(0x01); //清屏 命令1
write_com(0x07); //显示光标移动 命令3
write_com(0x0c); //显示开/关及光标设置 命令4
}
void main()
{
while(1)
{
init();
write_com(0x90);
for(num=0;num<20;num++)
{
write_data(table[num]);
delay(300);
}
write_com(0x01);
write_com(0xd0);
for(num=0;num<20;num++)
{
write_data(table1[num]);
delay(300);
}
write_com(0x01);
}
}
