/*

* UsartTransmitt.c

*

* Created: 18.08.2014 11:45:25

* Author: Vinkiril

*/

#include <avr/io.h>

#include <util/delay.h>

#include <stdio.h>

#include <stdlib.h>

#include <stdio.h>

#include <string.h>

#include <inttypes.h>

#if !defined(F_CPU)

# error F_CPU not defined

#endif

#define BAUD 4800 //(FOSC/16/MYUBRR)

const unsigned int MYUBRR = (F_CPU/16/BAUD - 1);

int uart_putchar(char c, FILE *stream)

{

if (c == '\n') uart_putchar('\r', stream);

loop_until_bit_is_set(UCSR0A, UDRE0);

UDR0 = c;

return 0;

}

void uart0_init(void)

{

unsigned char baudrateDiv = MYUBRR;

UBRR0H = baudrateDiv >> 8;

UBRR0L = baudrateDiv;

UCSR0B = (1 << RXEN0) | (1 << TXEN0);

UCSR0C = 0x2f;//(1<<USBS0)|(1<<UCSZ00);

fdevopen(uart_putchar, NULL);

}

int main()

{

uart0_init();

while (1)

{

printf("Hello, world!\n");

_delay_ms(1000);

}

return 0;

}