#include <mega8.h>
#include <delay.h>
// DS1302 Real Time Clock functions
#asm
   .equ __ds1302_port=0x18 ;PORTB
   .equ __ds1302_io=1      ;SDA
   .equ __ds1302_sclk=0    ;SCL
   .equ __ds1302_rst=4     ;RST
#endasm
#include <ds1302.h>
//
//#define 1302_SCL    PORTB.0
//#define 1302_SDA    PORTB.1
//#define 1302_RST    PORTB.4
//
#define sec1       PORTC.0
#define sec10      PORTC.1
#define min1       PORTC.2
#define min10      PORTC.3
#define hour1      PORTC.4
#define hour10     PORTC.5
//
unsigned char fnd_seg[]={
    0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xd8,0x80,0x98,0xff //0,1,2,3 4,5,6,7,8,9,blank
};
//
unsigned char    year, mon, date, hour, min, sec;
//
void fnd_display(void){
    PORTD=fnd_seg[sec /10]; sec1=1;   delay_ms(1); PORTC=0;
    PORTD=fnd_seg[sec %10]; sec10=1;  delay_ms(1); PORTC=0;
    PORTD=fnd_seg[min /10]; min1=1;   delay_ms(1); PORTC=0;
    PORTD=fnd_seg[min %10]; min10=1;  delay_ms(1); PORTC=0;   
    PORTD=fnd_seg[hour/10]; hour1=1;  delay_ms(1); PORTC=0;
    PORTD=fnd_seg[hour%10]; hour10=1; delay_ms(1); PORTC=0;
}
//
void main(void){
    DDRC=0xFF; DDRD=0xFF;
    rtc_init(0,0,0);    //1302 초기화. 내부 트리클 충전사용 안함.
    while (1){
           rtc_get_date(&date, &mon, &year);
           rtc_get_time(&hour, &min, &sec); 
           fnd_display();
//         rtc_set_date(date, mon, year);
//         rtc_set_time(hour, min, sec); 
           delay_ms(1000);
    }
}