#include <reg51.H>
#include <lcd.h>

char code int2charLCD[]="0123456789";
	
void write_LCD_command(unsigned command)
{
	rw=WRITE;
	rs=COMMAND;	  //寫入指令寄存器
	enable=ENABLE;
	P1=command;
	delay100us(20);
	enable=DISABLE;
	rw=1;
}
void write_LCD_data(unsigned LCDdata)
{
	rw=WRITE;
	rs=DATA;//選擇數據寄存器
	enable=ENABLE;
	P1=LCDdata;
	delay100us(20);
	enable=DISABLE;
	rw=1;
}
void init_LCD(void)
{
	write_LCD_command(TwoLine_8bit);// 0x38,數據以8位方式傳送和接收,雙行顯示  	
	write_LCD_command(CURSOR_OFF);	// 0x0C,顯示屏關閉,光標出現
	write_LCD_command(CURSOR_RIGHT);// 0x06,顯示屏不移動,每次讀入數據后,地址加1,光標右移一位
}
void clear_LCD()
{
	write_LCD_command(CLEAR);//清除顯示器	
	write_LCD_command(CURSOR_HOME);//光標移到左上角	
}
void display_LCD_string(char *p) //顯示字符串
{
	while(*p)
	{
		write_LCD_data(*p);
		p++;
	}
}
void display_LCD_number(char number) //顯示一個數字
{
	unsigned char x;
	x=number;
//	y=number-10*x;
	write_LCD_data(int2charLCD[x]);
//	write_LCD_data(int2charLCD[y]);
}
void gotoxy(unsigned x,unsigned y)	 //設置光標到第Y行第X個字的位置
{
	if(x==1)  
		write_LCD_command(GOTO_LINE_1+y);
	else
    	write_LCD_command(GOTO_LINE_2+y);
}