rtc.h

里面给出了ATmega103单片机编程的C语言实例程序

/*  ATmega603 rtc.h File 

   Author : Robert Stuart 
   Company : PDL Industries Ltd
   Date of Creation : 26 August 1999
*/

/* includes */
#include <iom103.h>
#include <stdio.h>
#include "logic.h"

/* Interrupt vector for overflow on Timer0 */
#pragma interrupt_handler RTCInterrupt:17

/* External Variables */
extern struct TimeStruct
{
  unsigned char Second;   		/* Current time, day, month, and year */
  unsigned char Minute;
  unsigned char Hour;
  unsigned char Day;
  unsigned char Month;
  unsigned int Year;
} Time;