/*
 * uart.h
 *
 */

#include <avr/io.h>
#include <stdlib.h>

#ifndef UART_H_
#define UART_H_

#define UART_RECV_BUFFER_SIZE 33 // max 32 chars + '\0'

//#define BAUD 19200UL      // Baudrate
#define BAUD 9600UL      // Baudrate

// Berechnungen
//#define UBRR_VAL F_CPU/16/BAUD-1
#define UBRR_VAL ((F_CPU+BAUD*8UL)/(BAUD*16UL)-1UL)   // clever runden
#define BAUD_REAL (F_CPU/(16UL*(UBRR_VAL+1UL)))     // Reale Baudrate
#define BAUD_ERROR ((BAUD_REAL*1000)/BAUD) // Fehler in Promille, 1000 = kein Fehler.

#if ((BAUD_ERROR<990) || (BAUD_ERROR>1010))
  #error Baud rate error greater than 1% - too high!
#endif


void uart_init();

void uart_sendChar(char c);
void uart_sendString (char *s);
void uart_sendBinary(int c);
void uart_sendInt(int c);
void uart_sendHex(int c);
void uart_sendLF();


char uart_receiveChar();
char* uart_receiveString();

#endif /* UART_H_ */