Asuro und printf("\nHallo Welt!!!");

[Winne]

printf() funktioniert schon mal.
Die Ausgabe ist schneller als SerWrite(), aber hat einen grösseren Overhead zu folge.

/******************************************************************************
 Beschreibung: stdio.h
 Datum: 2005-09-20
 Autor: Winold Doege
 Email: winne123@web.de
 Font: Courier / Size: 12
******************************************************************************/

#include <stdio.h> 
#include "asuro.h"


int usart_putchar( char data )
{
 UCSRB = 0x08;								/* enable transmitter */
 while ( !( UCSRA & (1<<UDRE)) );			/* Wait for empty transmit buffer */
 UDR = (unsigned char) data;				/* char send */
 if (data == '\n')							/* new Line */
    usart_putchar('\r');					/* cr   */	
 return 0;									/* Put data into buffer, sends the data */
}


int usart_getchar( void )
{
 UCSRB = 0x10; 								/* enable receiver */
 while ( !(UCSRA & (1<<RXC)) );			/* Wait for data to be received */
 return (int) UDR;							/* Get and return received data from buffer */
}

int main(void)
{
 Init();
 fdevopen(usart_putchar,usart_getchar, 0);
 for(;;)
  printf("\ntest");
 
 while(1);				//Endlosschleife
 return(0);
}