lcd1602.h

很实用的单片机例程

#define LCD_IO P0  			
sbit LCD_RS=P3^5;
sbit LCD_EN=P3^4;
sbit LCD_RW=P3^6;

void delay(unsigned int z)
{
	unsigned int x,y;
	for(x=z;x>0;x--)
		for(y=110;y>0;y--)
			;
}
void write_com(unsigned char ucCom)
{
	LCD_EN=0;LCD_RS=0;
	LCD_IO=ucCom;
	LCD_EN=1;
	delay(5);
	LCD_EN=0;	
}
void write_data(unsigned char ucDat)
{
	LCD_EN=1;LCD_RS=1;
	LCD_IO=ucDat;
	LCD_EN=1;
	delay(5);
	LCD_EN=0;
}
void write_str(unsigned char addr,unsigned char *str)
{ 	
	write_com(addr);
	do
	{
		write_data(*str);
		str++;
	}
	while(*str!='\0')
		;  
}
void lcd_init()
{
        LCD_RW=0;
	write_com(0X01);	
	write_com(0X38);	
	write_com(0X0E);	
	write_com(0X06);		
}