#include <avr/io.h>			// for the input/output register
#include <avr/interrupt.h> 	
#include <util/delay.h>  
#include <unistd.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>

#define PRESCALER 1024
#define TIME_SLOT 20
#define NB_TICK 113
#define BAUDRATE	103

void send_serial(unsigned char c)
{
	loop_until_bit_is_set(UCSR0A, UDRE0);
	UDR0 = c;
}

void init_serial(void)
{
	/* ACHTUNG : we suppose UBRR value < 0xff */
	/* Not true in all case */
	uint8_t baudrate = BAUDRATE;
	/* Set baud rate */
	UBRR0H = 0;
	UBRR0L = baudrate;

	/* Enable transmitter *///task_led_red();
      //task_send_serial('A');
	UCSR0B = (1<<TXEN0);

	/* Set frame format */
	UCSR0C = 0x06;
    
}


int main(void)
{
   init_serial();
   while(1)
    {
        send_serial('A');
        _delay_ms(3000);
    }
    return 0;
}