#include <avr/io.h>          
  
  void usart_init (void)
  { 
    ucsrb = (1<<txen) ;                
    ucsrc = (1<< ucsz1)|(1<<ucsz0)|(1<<ursel);
    ubrrl = 0x33 ;
  }  
  
  void usart_send (unsigned char ch)
  { 
    while (! (ucsra & (1<<udre)));   
  
      udr = ch ;              
  }
  
  int main (void)
  { 
    unsigned char str[30]= "the earth is but one country. ";
     unsigned char strlenght = 30;
      unsigned char i = 0 ;
  
      usart_init();
  
      while(1)
      {
        usart_send(str[i++]);
      
      if (i >= strlenght)  
            i = 0 ;
      }
    
      return 0 ;
  }