//-------------- INCLUDES
#include <avr/io.h>			// Input/output an den Pins
#include <avr/interrupt.h>	// Interrupts



void USART_Init( unsigned int baud )
{
	/* Set baud rate */
	UBRRH = (unsigned char)(baud>>8);
	UBRRL = (unsigned char)baud;
	/* Enable receiver and transmitter */
	UCSRB = (1<<RXEN)|(1<<TXEN);
	/* Set frame format: 8data, 2stop bit */
	//UCSRC = (1<<URSEL)|(1<<USBS)|(3<<UCSZ0);
	UCSRC |= (1<<URSEL)|(3<<UCSZ0);
}

void USART_Transmit( unsigned char data )
{
	/* Wait for empty transmit buffer */
	while ( !( UCSRA & (1<<UDRE)) )
	;
	/* Put data into buffer, sends the data */
	UDR = data;
}

unsigned char USART_Receive( void )
{
	/* Wait for data to be received */
	while ( !(UCSRA & (1<<RXC)) )
	;
	/* Get and return received data from buffer */
	return UDR;
}




int main(void)
{
	lcd_init();				// LCD einschalten
	USART_Init(19200);		// USART einstellen

	lcd_data('L');			// Text auf LCD ausgeben
	lcd_data('o');
	lcd_data('s');
	lcd_data(':');
	lcd_data(' ');


	USART_Transmit('A');			// Sende A
	lcd_data(USART_Receive());		// Warte auf Echo

	USART_Transmit('T');			// Sende T
	lcd_data(USART_Receive());		// Warte auf Echo

	USART_Transmit('D');			// Sende D
	lcd_data(USART_Receive());		// Warte auf Echo

	USART_Transmit('0');			// Sende 0
	lcd_data(USART_Receive());		// Warte auf Echo

}//end main