ATMEGA32 UART mag nich

#define FCPU 8000000L

#define UART_BAUD_RATE 9600

#define UART_BAUD_CALC(UART_BAUD_RATE,F_OSC)

((F_OSC)/((UART_BAUD_RATE)*16L)-1)

#include <inttypes.h>

#include <stdio.h>

#include <stdlib.h>

#include <avr/io.h>

int uart_putc(unsigned char c)

{

    while (!(UCSRA & (_BV(UDRE))));

    UDR = c;

    return 0;

}

int main( void )

{

    UCSRB |= _BV(TXEN);

    UCSRC |= _BV(URSEL)|_BV(UCSZ0);

    UBRRH=(uint8_t)(UART_BAUD_CALC(UART_BAUD_RATE,F_CPU)>>8);

    UBRRL=(uint8_t)UART_BAUD_CALC(UART_BAUD_RATE,F_CPU);

    for (int i='A';i<'A'+26;i++) {

        uart_putc(i);

    }

}