rtc_set.c

ATMEL公司的AT91RM9200的实时时钟的测试程序

#include <time.h>
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdlib.h>
#include <sys/ioctl.h>
#include <errno.h>
#include <asm/types.h>
#include <linux/rtc.h>
#include "../include/api.h"

void help(void)
{
	printf("Usage  : rtc_set year-month-day@hour:minute:second\n");
	printf("example: rtc_set 2005-03-03@10:10:10\n");
}
	


int main(int argc,const char * argv[])
{
     struct tm read_tm;
     struct tm t;
	int nr;
	//ds1302_set_time(&t); 
	if(argc < 2){
		help();
		return 1;
	}
	ds1302_get_time(&read_tm);
	printf("DS1302 rtc time now is : ");
   	show_time(&read_tm);
	nr = sscanf(argv[1],"%4d-%2d-%2d@%2d:%2d:%2d",
		&(t.tm_year),	&(t.tm_mon),
		&(t.tm_mday),	&(t.tm_hour),
		&(t.tm_min), 	&(t.tm_sec));
	if(nr != 6){
		help();
		return 2;
	}			
	t.tm_year -= 1900;
	t.tm_mon  -= 1;
	printf("set new date time: \n");
	rtc_set_time(&t);

	rtc_get_time(&t);
	printf("AT91RM9200 rtc time: ");
   	show_time(&t);
   	ds1302_set_time(&t);

	ds1302_get_time(&read_tm);
	printf("DS1302     rtc time: ");
   	show_time(&read_tm);

}