#define LCD_DATA PTT 
#define LCD_CTRL PORTB   
#define RS PORTB_BIT5_MASK	 
#define RW PORTB_BIT6_MASK	 
#define EN PORTB_BIT7_MASK	 
void COMWRT4(unsigned char); 
void DATWRT4(unsigned char); 
void MSDelay(int);
void main(void)
  {
	DDRT =0xFF; 
	DDRB =0xFF; 
	COMWRT4(0x33);
	MSDelay(250); 
	COMWRT4(0x32);
	MSDelay(250); 
	COMWRT4(0x28);
	MSDelay(15); 
	COMWRT4(0x0E);  
	MSDelay(15);  
	COMWRT4(0x01);  
	MSDelay(15);  
	COMWRT4(0x06);  
	MSDelay(15);  
	COMWRT4(0x84);  
	MSDelay(15);  
	DATWRT4('N'); 
	MSDelay(15);  
	DATWRT4('O'); 
	while(1); 
  }
void COMWRT4(unsigned char command)
  {  
	LCD_DATA = command & 0xF0; 
	LCD_CTRL = LCD_CTRL & ~RS; 
	LCD_CTRL = LCD_CTRL & ~RW; 
	LCD_CTRL = LCD_CTRL | EN; 
	LCD_CTRL = LCD_CTRL & ~EN;
	LCD_DATA = (command & 0x0F)<<4;
	LCD_CTRL = LCD_CTRL | EN; 
	LCD_CTRL = LCD_CTRL & ~EN;
  }
void DATWRT4(unsigned char data) 
  {
	LCD_DATA = data & 0xF0;   
	LCD_CTRL = LCD_CTRL | RS; 
	LCD_CTRL = LCD_CTRL & ~RW;
	LCD_CTRL = LCD_CTRL | EN; 
	LCD_CTRL = LCD_CTRL & ~EN;
	LCD_DATA = (data & 0x0F) << 4;
	LCD_CTRL = LCD_CTRL | EN; 
	LCD_CTRL = LCD_CTRL & ~EN;
  }