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


#define USR UCSRA
#define UCR UCSRB
#define UBRR UBRRL
#define EICR EICRB


#define SYSCLK	8000000	//Quarz Frequenz in Hz


#define BAUD_RATE 9600	//Baud Rate für die Serielle Schnittstelle	




int uart_putchar (char c)
{	
	loop_until_bit_is_set(USR, UDRE); 
	UDR = c;
	return (0);
}

int uart_print(unsigned char *buffer)
{
	while (*buffer)
	{		
		uart_putchar(*buffer++);
	}
	return (0);
}


int main(void){
	unsigned char a;
	unsigned short i;
	
	
	UCR=(1 << TXEN);//tx enable...
	UBRR=(SYSCLK / (BAUD_RATE * 16L) - 1);//und bauderate
	
	uart_print("system ok, mmc init response:");
	a = mmc_init();
	uart_putchar(a);
	
	
	//mmc_start_read_block(0,0);
	//mmc_read_buffer(*buf,512);
	
	while(1){
	
	}
	return (1);
}