void RTCGetTime(struct atimestamp* timestamp)
{
int8 time_hun;
int8 time_sec;
int8 time_sec2;
int8 time_min;
int8 time_hour;
int8 time_yearday;
int8 time_weekdaymonth;
int1 nack;
int8 address;
address = PCF8583_CURRENTTIME;
i2c_start();
nack = i2c_write(PCF8583_WRITE);
if (nack) {
i2c_stop();
} else {
i2c_write(address);
i2c_start();
nack = i2c_write(PCF8583_READ);
if (nack) {
i2c_stop();
} else {
time_hun = i2c_read();
time_sec = i2c_read();
time_min = i2c_read();
time_hour = i2c_read();
time_yearday = i2c_read();
time_weekdaymonth= i2c_read(0);
i2c_stop();
time_sec2 = BCDdecode(time_sec);
if (timestamp->second != time_sec2) {
timestamp->hundredth= BCDdecode(time_hun);
timestamp->second = time_sec2;
timestamp->minute = BCDdecode(time_min);
timestamp->hour = BCDdecode(time_hour);
timestamp->weekday = ((time_weekdaymonth & PCF8583_MASK_WEEKDAY) >> 5);
timestamp->day = ((time_yearday & 0x30) >> 4)*10 + (time_yearday & 0x0F);
timestamp->month = ((time_weekdaymonth & 0x10) >> 4)*10 + (time_weekdaymonth & 0x0F);
timestamp->year = (time_yearday & 0xC0) >> 6;
timestamp->updated = 1;
}
}
}
char* get_time()
{
getTime();
hour=BCDdecode(hour);
min=BCDdecode(min);
sec=BCDdecode(sec);
time[0]=hour/10+'0';
time[1]=hour%10+'0';
time[2]=':';
time[3]=min/10+'0';
time[4]=min%10+'0';
time[5]=':';
time[6]=sec/10+'0';
time[7]=sec%10+'0';
return time;
}
char* get_date()
{
getDate();
century=BCDdecode(century);
year=BCDdecode(year);
month=BCDdecode(month);
day=BCDdecode(day);
date[0]=century/10+'0';
date[1]=century%10+'0';
date[2]=year/10+'0';
date[3]=year%10+'0';
date[4]='/';
date[5]=month/10+'0';
date[6]=month%10+'0';
date[7]='/';
date[8]=day/10+'0';
date[9]=day%10+'0';
return date;
}
void RTCGetTime(int1 alarm, struct atimestamp* timestamp)
{
int8 time_hun;
int8 time_sec;
int8 time_sec2;
int8 time_min;
int8 time_hour;
int8 time_yearday;
int8 time_weekdaymonth;
int1 nack;
int8 address;
if (alarm) address = PCF8583_ALARMTIME;
else address = PCF8583_CURRENTTIME;
i2c_start();
nack = i2c_write(PCF8583_WRITE);
if (nack) {
i2c_stop();
} else {
i2c_write(address);
i2c_start();
nack = i2c_write(PCF8583_READ);
if (nack) {
i2c_stop();
} else {
time_hun = i2c_read();
time_sec = i2c_read();
time_min = i2c_read();
time_hour = i2c_read();
time_yearday = i2c_read();
time_weekdaymonth= i2c_read();
i2c_stop();
time_sec2 = BCDdecode(time_sec);
if (timestamp->second != time_sec2) {
timestamp->hundredth= BCDdecode(time_hun);
timestamp->second = time_sec2;
timestamp->minute = BCDdecode(time_min);
timestamp->hour = BCDdecode(time_hour);
timestamp->day = BCDdecode(time_yearday & PCF8583_MASK_DAY);
timestamp->month = BCDdecode(time_weekdaymonth & PCF8583_MASK_MONTH);
timestamp->weekday = time_weekdaymonth & PCF8583_MASK_WEEKDAY;
timestamp->leapyear = time_yearday ^ PCF8583_MASK_YEAR;
timestamp->updated = 1;
}
delay_ms(10);
}
}
}
