#define F_CPU 8000000UL

#include <avr/io.h>    		
#include <util/delay.h>		

#define	LCD_DPRT  PORTA 	
#define	LCD_DDDR  DDRA 		
#define	LCD_DPIN  PINA 		
#define	LCD_CPRT  PORTB 	
#define	LCD_CDDR  DDRB 		
#define	LCD_CPIN  PINB 		
#define	LCD_RS  0 			
#define	LCD_RW  1 			
#define	LCD_EN  2 			

//*******************************************************
void delay_us(unsigned int d)
{
  _delay_us(d);
}

//*******************************************************
void lcdCommand( unsigned char cmnd )
{
  LCD_DPRT = cmnd;			
  LCD_CPRT &= ~ (1<<LCD_RS);
  LCD_CPRT &= ~ (1<<LCD_RW);
  LCD_CPRT |= (1<<LCD_EN);	
  delay_us(1);				
  LCD_CPRT &= ~ (1<<LCD_EN);
  delay_us(100);			
}

//*******************************************************
void lcdData( unsigned char data )
{
  LCD_DPRT = data;			
  LCD_CPRT |= (1<<LCD_RS);	
  LCD_CPRT &= ~ (1<<LCD_RW);
  LCD_CPRT |= (1<<LCD_EN);	
  delay_us(1);				
  LCD_CPRT &= ~ (1<<LCD_EN);
  delay_us(100);			
}

//*******************************************************
void lcd_init()
{
  LCD_DDDR = 0xFF;
  LCD_CDDR = 0xFF;
 
  LCD_CPRT &=~(1<<LCD_EN);	
  delay_us(2000);			
  lcdCommand(0x38);			
  lcdCommand(0x0E);			
  lcdCommand(0x01);			
  delay_us(2000);			
  lcdCommand(0x06);			
}

//*******************************************************
void lcd_gotoxy(unsigned char x, unsigned char y)
{  
 unsigned char firstCharAdr[]={0x80,0xC0,0x94,0xD4};//table 12-5  
 lcdCommand(firstCharAdr[y-1] + x - 1);
 delay_us(100);	
}

//*******************************************************
void lcd_print( char * str )
{
  unsigned char i = 0 ;
  while(str[i]!=0)
  {
    lcdData(str[i]);
    i++ ;
  }
}

//*******************************************************
int main(void) 
{	
	lcd_init();
	lcd_gotoxy(1,1);
	lcd_print("The world is but");
	lcd_gotoxy(1,2);
	lcd_print("one country");
	
	while(1);				
    	return 0;
}