void time_sleep()
{
// TCCR2B = _BV(CS22)|_BV(CS20);
// while(ASSR & (_BV(OCR2BUB)|_BV(TCR2AUB)|_BV(TCR2BUB)));
#if RTC_SRC != RTC_SRC_INTERNAL
// Turn off square wave
rtc_sqw(RTC_SQW_OFF);
alarm_s alarm;
// Set next alarm
if(alarm_getNext(&alarm))
{
alarm.days = alarm_getNextDay() + 1;
rtc_setUserAlarmWake(&alarm);
}
else
rtc_setUserAlarmWake(NULL);
//
if(appConfig.volHour)
{
alarm.min = 0;
alarm.hour = 0;
alarm.days = 0;
rtc_setSystemAlarmWake(&alarm);
}
else // Hour beep volume set to minimum, so don't bother with the system alarm
rtc_setSystemAlarmWake(NULL);
#endif
update = false;
}
void ds3231_init()
{
// Set registers
byte data;
// Control
// Enable oscillator
read(DS3231_ADDR_CTRL, &data, 1);
CLEAR_BITS(data, DS3231_BIT_EOSC, DS3231_BIT_RS1, DS3231_BIT_RS2);
write(DS3231_ADDR_CTRL, data);
// Status
// Turn off 32KHz output
// Unset alarm 1 & 2 interrupts
read(DS3231_ADDR_STATUS, &data, 1);
CLEAR_BITS(data, DS3231_BIT_EN32KHZ, DS3231_BIT_A2F, DS3231_BIT_A1F);
write(DS3231_ADDR_STATUS, data);
// Set 1Hz output
rtc_sqw(RTC_SQW_ON);
}
rtcwake_t time_wake()
{
#if RTC_SRC != RTC_SRC_INTERNAL
getRtcTime();
// Turn on square wave
rtc_sqw(RTC_SQW_ON);
// update = false;
// Check alarms
bool userAlarm = rtc_userAlarmState();
bool systemAlarm = rtc_systemAlarmState();
if(userAlarm && systemAlarm)
return RTCWAKE_USER_SYSTEM;
else if(userAlarm)
return RTCWAKE_USER;
else if(systemAlarm)
return RTCWAKE_SYSTEM;
#endif
return RTCWAKE_NONE;
}
