#include <avr/io.h> 

#define F_CPU 7372800UL
#include <util/delay.h>		

#define	LCD_DPRT  PORTC 	
#define	LCD_DDDR  DDRC		
#define	LCD_DPIN  PINC 		
#define	LCD_CPRT  PORTC 	
#define	LCD_CDDR  DDRC		
#define	LCD_CPIN  PINC 		
#define	LCD_RS  0 			
#define	LCD_RW  1 			
#define	LCD_EN  2 			

void delay_us(int d)
{
  _delay_us(d);
}

void lcdCommand( unsigned char cmnd )
{
  LCD_DPRT = (LCD_DPRT&0x0F)|(cmnd & 0xF0);	
  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);				
  LCD_DPRT = (LCD_DPRT&0x0F)|(cmnd<<4);		
  LCD_CPRT |= (1<<LCD_EN);		
  delay_us(1);					
  LCD_CPRT &= ~ (1<<LCD_EN);	
  delay_us(100);				
}

void lcdData( unsigned char data )
{
  LCD_DPRT = (LCD_DPRT&0x0F)|(data & 0xF0);	
  LCD_CPRT |= (1<<LCD_RS);		
  LCD_CPRT &= ~ (1<<LCD_RW);	
  LCD_CPRT |= (1<<LCD_EN);		
  delay_us(1);					
  LCD_CPRT &= ~ (1<<LCD_EN);	
  LCD_DPRT = (LCD_DPRT&0x0F)|(data<<4);		
  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);	
  lcdCommand(0x33);			
  lcdCommand(0x32);			
  lcdCommand(0x28);			
  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} ;

  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;
}