AT24C02 C语言驱动程序—LCD1602 显示(2)

void LCD_write_char( unsigned x,unsigned char y,unsigned char dat)
{
LCD_set_xy( x, y );
LCD_en_dat(dat);
}
/********************************************************************/
void LCD_write_string(unsigned char X,unsigned char Y,unsigned char *s)
{
LCD_set_xy( X, Y ); //set address
while (*s) // write character
{
LCDIO=*s;
LCD_en_dat(*s);
s ++;
}
}
/********************************************************************/
void LCD_init(void)
{
CLEARSCREEN;//clear screen
LCD_en_command(DATA_MODE);//set 8 bit data transmission mode
LCD_en_command(OPEN_SCREEN);//open display (enable lcd display)
LCD_en_command(DISPLAY_ADDRESS);//set lcd first display address
CLEARSCREEN;//clear screen
}
/********************************************************************/
/******************* OTHER PART ********************
***************/
void delay_nms(unsigned int n)
{
unsigned int i=0,j=0;
for (i=n;i>0;i--)
for (j=0;j<1140;j++)
;
}