void GetDay( Calendar *date ){
int dayNum = BCDtoInt(date->DayOfMonth);
int month = BCDtoInt(date->Month);
int year = BCDtoInt(date->Year);
int dayName;
int d, m, y, c;
d = GetdNumber(dayNum);
m = GetmNumber(month, year);
y = GetyNumber(year);
c = GetcNumber(year);
dayName = (d + m + y + (y/4) + c) % 7;
date->DayOfWeek = dayName;
}
void IncrementReminderMonth( y_reminder *reminder ){
int month = BCDtoInt( reminder->Time.Month );
if( month < 12 ) {
month++;
reminder->Time.Month = IntToBCD( month );
} else {
reminder->Time.Month = 1;
IncrementReminderYear( reminder );
}
}
void IncrementReminderYear( y_reminder *reminder ){
int year = BCDtoInt( reminder->Time.Year & 0xFF );
if( year < 99 ) {
year++;
reminder->Time.Year &= 0xff00;
reminder->Time.Year |= IntToBCD( year );
} else {
int century = BCDtoInt( reminder->Time.Year >> 8 );
century++;
reminder->Time.Year &= 0x0000;
reminder->Time.Year |= ( IntToBCD( century ) << 8 );
}
}
void IncrementReminderDay( y_reminder *reminder ){
int day = BCDtoInt( reminder->Time.DayOfMonth );
if ( day < 28 ) reminder->Time.DayOfMonth = IntToBCD( ++day );
else {
if ( reminder->Time.Month == 0x04 || reminder->Time.Month == 0x06 || reminder->Time.Month == 0x09 || reminder->Time.Month == 0x11 ){
if ( day < 30 ) reminder->Time.DayOfMonth = IntToBCD( ++day );
else {
reminder->Time.DayOfMonth = 1;
IncrementReminderMonth( reminder );
}
} else if ( reminder->Time.Month == 0x02 ){
int year = BCDtoInt( reminder->Time.Year );
if ( IsLeapYear(year) ){
if ( day < 29 ) reminder->Time.DayOfMonth = IntToBCD( ++day );
else {
reminder->Time.DayOfMonth = 1;
IncrementReminderMonth( reminder );
}
} else {
if ( day < 28 ) reminder->Time.DayOfMonth = IntToBCD( ++day );
else {
reminder->Time.DayOfMonth = 1;
IncrementReminderMonth( reminder );
}
}
} else {
if ( day < 31 ) reminder->Time.DayOfMonth = IntToBCD( ++day );
else {
reminder->Time.DayOfMonth = 1;
IncrementReminderMonth( reminder );
}
}
}
}
void Sync_RTC(void){
time_t ltime;
struct tm *rtc_tm;
ltime = time(NULL);
rtc_tm = localtime(<ime);
int fd;
unsigned char buff[10];
unsigned char data[10];
buff[0] = 0x02;
/* Open I2C-BUS */
I2C_Open(&fd, 0x51);
/* Write register */
I2C_Send(&fd, buff, 1) ;
/* Read the RTC */
I2C_Read(&fd, data, 7);
/* Close I2C-BUS */
I2C_Close(&fd);
data[0] &= 0x7F;
data[1] &= 0x7F;
data[2] &= 0x3F;
data[3] &= 0x3F;
data[4] &= 0x07;
data[5] &= 0x1F;
data[6] &= 0xFF;
rtc_tm -> tm_sec = BCDtoInt(data[0]);
rtc_tm -> tm_min = BCDtoInt(data[1]);
rtc_tm -> tm_hour = BCDtoInt(data[2]);
rtc_tm -> tm_mday = BCDtoInt(data[3]);
rtc_tm -> tm_wday = BCDtoInt(data[4]);
rtc_tm -> tm_mon = BCDtoInt(data[5]);
rtc_tm -> tm_year = BCDtoInt(data[6]);
const struct timeval tv = {mktime(rtc_tm), 0};
settimeofday(&tv, 0);
}
void Read_RTC(void){
int fd;
unsigned char buff[10];
unsigned char data[10];
buff[0] = 0x02;
/* Open I2C-BUS */
I2C_Open(&fd, 0x51);
/* Write register */
I2C_Send(&fd, buff, 1) ;
/* Read the RTC */
I2C_Read(&fd, data, 7);
/* Close I2C-BUS */
I2C_Close(&fd);
data[0] &= 0x7F;
data[1] &= 0x7F;
data[2] &= 0x3F;
data[3] &= 0x3F;
data[4] &= 0x07;
data[5] &= 0x1F;
data[6] &= 0xFF;
printf("Sec: %d\n",BCDtoInt(data[0]));
printf("Min: %d\n",BCDtoInt(data[1]));
printf("Hour: %d\n",BCDtoInt(data[2]));
printf("MDays: %d\n",BCDtoInt(data[3]));
printf("WDays: %d\n",BCDtoInt(data[4]));
printf("Month: %d\n",BCDtoInt(data[5]));
printf("Year: %d\n",BCDtoInt(data[6]));
}
