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Implement checking and clearing alarm

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This commit is contained in:
BlackMark 2020-05-17 19:10:16 +02:00
parent 3029c3cfe0
commit ff52f4f152
1 changed files with 41 additions and 0 deletions
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41
ds3231.hpp
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@ -187,6 +187,24 @@ class DS3231 {
writePartialRegister<START_OFFSET, END_OFFSET>(timeReg);
}
static bool checkAlarm1()
{
return checkAlarmHelper<detail::ControlStatusRegFlags::A1F>();
}
static bool checkAlarm2()
{
return checkAlarmHelper<detail::ControlStatusRegFlags::A2F>();
}
static void clearAlarm1()
{
clearAlarmHelper<detail::ControlStatusRegFlags::A1F>();
}
static void clearAlarm2()
{
clearAlarmHelper<detail::ControlStatusRegFlags::A2F>();
}
private:
template <uint8_t Address, typename Register>
static Register readRegisterHelper()
@ -268,6 +286,29 @@ class DS3231 {
writePartialRegister<0, sizeof(Register) - 1>(reg);
}
template <detail::ControlStatusRegFlags AlarmFlag>
static inline bool checkAlarmHelper()
{
constexpr auto IsAlarm1Flag = AlarmFlag == detail::ControlStatusRegFlags::A1F;
constexpr auto IsAlarm2Flag = AlarmFlag == detail::ControlStatusRegFlags::A2F;
static_assert(IsAlarm1Flag || IsAlarm2Flag, "Must use valid alarm flag");
const auto alarmStatus = readRegister<CONTROL_STATUS_REG_ADDR>();
return alarmStatus == AlarmFlag;
}
template <detail::ControlStatusRegFlags AlarmFlag>
static inline void clearAlarmHelper()
{
constexpr auto IsAlarm1Flag = AlarmFlag == detail::ControlStatusRegFlags::A1F;
constexpr auto IsAlarm2Flag = AlarmFlag == detail::ControlStatusRegFlags::A2F;
static_assert(IsAlarm1Flag || IsAlarm2Flag, "Must use valid alarm flag");
auto controlStatusReg = readRegister<CONTROL_STATUS_REG_ADDR>();
controlStatusReg &= ~AlarmFlag;
writeRegister(controlStatusReg);
}
static uint8_t calcDayOfWeek(uint16_t year, uint8_t month, uint16_t day)
{
day += month < 3 ? year-- : year - 2;