app.c

AVR Devolpment Board

#include "avr/io.h"
#include "util/delay.h"
#include "ds1302.h"
#include "uart.h"

unsigned char Year;
unsigned char Month;
unsigned char Day;
unsigned char Hour;
unsigned char Minute;
unsigned char Second;


int main(void)
{
	
	/* Set LED and Smg LE pin as output , databus as output */
	DDRA |=(1<<PA4)|(1<<PA5)|(1<<PA6); 
	DDRB  = 0xFF;

	/* Off the Smg display */
	PORTA|= (1<<PA5);
	PORTB = 0x00;
	PORTA&=~(1<<PA5);

	/* Off the LED display */
	PORTA|= (1<<PA6);
	PORTB = 0xFF;
	PORTA&=~(1<<PA6);

	DS1302_Config();
	DS1302TimeInit();
	UART_Config();
	printf("System reset ! \r\n");
	while(1)
	{
		Year  =DS1302TimeRead(DS_YEAR  );
		Month =DS1302TimeRead(DS_MONTH );
		Day   =DS1302TimeRead(DS_DAY   );
		Hour  =DS1302TimeRead(DS_HOUR  );
		Minute=DS1302TimeRead(DS_MINUTE);
		Second=DS1302TimeRead(DS_SECOND);
		_delay_ms(10);
		if(Second!=DS1302TimeRead(DS_SECOND))
		{
			Second=DS1302TimeRead(DS_SECOND);
			printf("20%02d-%02d-%02d %02d:%02d:%02d\r\n",Year,Month,Day,Hour,Minute,Second);
		}
	}
	return 0;
}