zuoyi.c

C51 程序练习

#include<reg52.h>
#define uchar unsigned char
#define uint unsigned int
uchar code table[]="LIU BIN";
uchar code table1[]="FEI FEI!";
sbit lcden=P2^7;
sbit lcdrs=P2^6;
sbit lcdrw=P2^5;
uchar num;

void delay(uint z)
{
	uint x,y;
	for(x=z;x>0;x--)
		for(y=110;y>0;y--);
}
void write_com(uchar com)
{
	lcdrs=0;//写指令
	P0=com;
	delay(5);
	lcden=1;
	delay(5);
	lcden=0;//以上都是根据指令表写出
}
void write_data(uchar date)//写数据
{
	lcdrs=1;//写数据
	P0=date;
	delay(5);
	lcden=1;
	delay(5);
	lcden=0;//以上都是根据指令表写出
}
void init()
{
	lcdrw=0;//写入为0
	lcden=0;
	write_com(0x38);
	write_com(0x0f);//显示光标设置
	write_com(0x06);
	write_com(0x01);//清屏
	write_com(0x80+0x10);//设置数据指针	
}
void main()
{
	init();
	for(num=0;num<7;num++)
	{
	
		write_data(table[num]);
		delay(20);
	}
	/*write_com(1);//清屏第一行完了清屏在开始第二行*/
	write_com(0x80+0x53);//换行第二行
	for(num=0;num<8;num++)
	{
	
		write_data(table1[num]);
		delay(20);
	}
	for(num=0;num<16;num++)
	{
		write_com(0x18);
		delay(200);
	}

	while(1);
	
}