STM32L486xx HAL User Manual
Functions
RTC Alarm functions
RTC Exported Functions

RTC Alarm functions. More...

Functions

HAL_StatusTypeDef HAL_RTC_SetAlarm (RTC_HandleTypeDef *hrtc, RTC_AlarmTypeDef *sAlarm, uint32_t Format)
 Set the specified RTC Alarm.
HAL_StatusTypeDef HAL_RTC_SetAlarm_IT (RTC_HandleTypeDef *hrtc, RTC_AlarmTypeDef *sAlarm, uint32_t Format)
 Set the specified RTC Alarm with Interrupt.
HAL_StatusTypeDef HAL_RTC_DeactivateAlarm (RTC_HandleTypeDef *hrtc, uint32_t Alarm)
 Deactivate the specified RTC Alarm.
HAL_StatusTypeDef HAL_RTC_GetAlarm (RTC_HandleTypeDef *hrtc, RTC_AlarmTypeDef *sAlarm, uint32_t Alarm, uint32_t Format)
 Get the RTC Alarm value and masks.
void HAL_RTC_AlarmIRQHandler (RTC_HandleTypeDef *hrtc)
 Handle Alarm interrupt request.
__weak void HAL_RTC_AlarmAEventCallback (RTC_HandleTypeDef *hrtc)
 Alarm A callback.
HAL_StatusTypeDef HAL_RTC_PollForAlarmAEvent (RTC_HandleTypeDef *hrtc, uint32_t Timeout)
 Handle AlarmA Polling request.

Detailed Description

RTC Alarm functions.

 ===============================================================================
                 ##### RTC Alarm functions #####
 ===============================================================================  
 
 [..] This section provides functions allowing to configure Alarm feature


Function Documentation

Alarm A callback.

Parameters:
hrtc,:RTC handle
Return values:
None

Definition at line 1651 of file stm32l4xx_hal_rtc.c.

Referenced by HAL_RTC_AlarmIRQHandler(), HAL_RTC_Init(), and HAL_RTC_UnRegisterCallback().

HAL_StatusTypeDef HAL_RTC_DeactivateAlarm ( RTC_HandleTypeDef hrtc,
uint32_t  Alarm 
)

Deactivate the specified RTC Alarm.

Parameters:
hrtc,:RTC handle
Alarm,:Specifies the Alarm. This parameter can be one of the following values:
  • RTC_ALARM_A: AlarmA
  • RTC_ALARM_B: AlarmB
Return values:
HALstatus

Definition at line 1459 of file stm32l4xx_hal_rtc.c.

References __HAL_RTC_ALARM_DISABLE_IT, __HAL_RTC_ALARM_GET_FLAG, __HAL_RTC_ALARMA_DISABLE, __HAL_RTC_ALARMB_DISABLE, __HAL_RTC_WRITEPROTECTION_DISABLE, __HAL_RTC_WRITEPROTECTION_ENABLE, assert_param, HAL_GetTick(), HAL_RTC_STATE_BUSY, HAL_RTC_STATE_READY, HAL_RTC_STATE_TIMEOUT, IS_RTC_ALARM, RTC_ALARM_A, RTC_FLAG_ALRAWF, RTC_FLAG_ALRBWF, RTC_IT_ALRA, RTC_IT_ALRB, RTC_TIMEOUT_VALUE, and __RTC_HandleTypeDef::State.

HAL_StatusTypeDef HAL_RTC_GetAlarm ( RTC_HandleTypeDef hrtc,
RTC_AlarmTypeDef sAlarm,
uint32_t  Alarm,
uint32_t  Format 
)

Get the RTC Alarm value and masks.

Parameters:
hrtc,:RTC handle
sAlarm,:Pointer to Date structure
Alarm,:Specifies the Alarm. This parameter can be one of the following values:
  • RTC_ALARM_A: AlarmA
  • RTC_ALARM_B: AlarmB
Format,:Specifies the format of the entered parameters. This parameter can be one of the following values:
  • RTC_FORMAT_BIN: Binary data format
  • RTC_FORMAT_BCD: BCD data format
Return values:
HALstatus

Definition at line 1553 of file stm32l4xx_hal_rtc.c.

References RTC_AlarmTypeDef::Alarm, RTC_AlarmTypeDef::AlarmDateWeekDay, RTC_AlarmTypeDef::AlarmDateWeekDaySel, RTC_AlarmTypeDef::AlarmMask, RTC_AlarmTypeDef::AlarmTime, assert_param, RTC_TimeTypeDef::Hours, __RTC_HandleTypeDef::Instance, IS_RTC_ALARM, IS_RTC_FORMAT, RTC_TimeTypeDef::Minutes, RTC_ALARM_A, RTC_ALARM_B, RTC_ALARMMASK_ALL, RTC_Bcd2ToByte(), RTC_FORMAT_BIN, RTC_TimeTypeDef::Seconds, RTC_TimeTypeDef::SubSeconds, and RTC_TimeTypeDef::TimeFormat.

HAL_StatusTypeDef HAL_RTC_PollForAlarmAEvent ( RTC_HandleTypeDef hrtc,
uint32_t  Timeout 
)

Handle AlarmA Polling request.

Parameters:
hrtc,:RTC handle
Timeout,:Timeout duration
Return values:
HALstatus

Definition at line 1667 of file stm32l4xx_hal_rtc.c.

References __HAL_RTC_ALARM_CLEAR_FLAG, __HAL_RTC_ALARM_GET_FLAG, HAL_GetTick(), HAL_RTC_STATE_READY, HAL_RTC_STATE_TIMEOUT, RTC_FLAG_ALRAF, and __RTC_HandleTypeDef::State.

HAL_StatusTypeDef HAL_RTC_SetAlarm ( RTC_HandleTypeDef hrtc,
RTC_AlarmTypeDef sAlarm,
uint32_t  Format 
)

Set the specified RTC Alarm.

Parameters:
hrtc,:RTC handle
sAlarm,:Pointer to Alarm structure
Format,:Specifies the format of the entered parameters. This parameter can be one of the following values:
  • RTC_FORMAT_BIN: Binary data format
  • RTC_FORMAT_BCD: BCD data format
Return values:
HALstatus

Definition at line 1090 of file stm32l4xx_hal_rtc.c.

References __HAL_RTC_ALARM_DISABLE_IT, __HAL_RTC_ALARM_GET_FLAG, __HAL_RTC_ALARMA_DISABLE, __HAL_RTC_ALARMA_ENABLE, __HAL_RTC_ALARMB_DISABLE, __HAL_RTC_ALARMB_ENABLE, __HAL_RTC_WRITEPROTECTION_DISABLE, __HAL_RTC_WRITEPROTECTION_ENABLE, RTC_AlarmTypeDef::Alarm, RTC_AlarmTypeDef::AlarmDateWeekDay, RTC_AlarmTypeDef::AlarmDateWeekDaySel, RTC_AlarmTypeDef::AlarmMask, RTC_AlarmTypeDef::AlarmSubSecondMask, RTC_AlarmTypeDef::AlarmTime, assert_param, HAL_GetTick(), HAL_RTC_STATE_BUSY, HAL_RTC_STATE_READY, HAL_RTC_STATE_TIMEOUT, RTC_TimeTypeDef::Hours, __RTC_HandleTypeDef::Instance, IS_RTC_ALARM, IS_RTC_ALARM_DATE_WEEKDAY_DATE, IS_RTC_ALARM_DATE_WEEKDAY_SEL, IS_RTC_ALARM_DATE_WEEKDAY_WEEKDAY, IS_RTC_ALARM_MASK, IS_RTC_ALARM_SUB_SECOND_MASK, IS_RTC_ALARM_SUB_SECOND_VALUE, IS_RTC_FORMAT, IS_RTC_HOUR12, IS_RTC_HOUR24, IS_RTC_HOURFORMAT12, IS_RTC_MINUTES, IS_RTC_SECONDS, RTC_TimeTypeDef::Minutes, RTC_ALARM_A, RTC_ALARMDATEWEEKDAYSEL_DATE, RTC_Bcd2ToByte(), RTC_ByteToBcd2(), RTC_FLAG_ALRAWF, RTC_FLAG_ALRBWF, RTC_FORMAT_BIN, RTC_IT_ALRA, RTC_IT_ALRB, RTC_TIMEOUT_VALUE, RTC_TimeTypeDef::Seconds, __RTC_HandleTypeDef::State, RTC_TimeTypeDef::SubSeconds, and RTC_TimeTypeDef::TimeFormat.

HAL_StatusTypeDef HAL_RTC_SetAlarm_IT ( RTC_HandleTypeDef hrtc,
RTC_AlarmTypeDef sAlarm,
uint32_t  Format 
)

Set the specified RTC Alarm with Interrupt.

Parameters:
hrtc,:RTC handle
sAlarm,:Pointer to Alarm structure
Format,:Specifies the format of the entered parameters. This parameter can be one of the following values:
  • RTC_FORMAT_BIN: Binary data format
  • RTC_FORMAT_BCD: BCD data format
Note:
The Alarm register can only be written when the corresponding Alarm is disabled (Use the HAL_RTC_DeactivateAlarm()).
The HAL_RTC_SetTime() must be called before enabling the Alarm feature.
Return values:
HALstatus

Definition at line 1274 of file stm32l4xx_hal_rtc.c.

References __HAL_RTC_ALARM_CLEAR_FLAG, __HAL_RTC_ALARM_ENABLE_IT, __HAL_RTC_ALARM_EXTI_ENABLE_IT, __HAL_RTC_ALARM_EXTI_ENABLE_RISING_EDGE, __HAL_RTC_ALARM_GET_FLAG, __HAL_RTC_ALARMA_DISABLE, __HAL_RTC_ALARMA_ENABLE, __HAL_RTC_ALARMB_DISABLE, __HAL_RTC_ALARMB_ENABLE, __HAL_RTC_WRITEPROTECTION_DISABLE, __HAL_RTC_WRITEPROTECTION_ENABLE, RTC_AlarmTypeDef::Alarm, RTC_AlarmTypeDef::AlarmDateWeekDay, RTC_AlarmTypeDef::AlarmDateWeekDaySel, RTC_AlarmTypeDef::AlarmMask, RTC_AlarmTypeDef::AlarmSubSecondMask, RTC_AlarmTypeDef::AlarmTime, assert_param, HAL_GetTick(), HAL_RTC_STATE_BUSY, HAL_RTC_STATE_READY, HAL_RTC_STATE_TIMEOUT, RTC_TimeTypeDef::Hours, __RTC_HandleTypeDef::Instance, IS_RTC_ALARM, IS_RTC_ALARM_DATE_WEEKDAY_DATE, IS_RTC_ALARM_DATE_WEEKDAY_SEL, IS_RTC_ALARM_DATE_WEEKDAY_WEEKDAY, IS_RTC_ALARM_MASK, IS_RTC_ALARM_SUB_SECOND_MASK, IS_RTC_ALARM_SUB_SECOND_VALUE, IS_RTC_FORMAT, IS_RTC_HOUR12, IS_RTC_HOUR24, IS_RTC_HOURFORMAT12, IS_RTC_MINUTES, IS_RTC_SECONDS, RTC_TimeTypeDef::Minutes, RTC_ALARM_A, RTC_ALARMDATEWEEKDAYSEL_DATE, RTC_Bcd2ToByte(), RTC_ByteToBcd2(), RTC_FLAG_ALRAF, RTC_FLAG_ALRAWF, RTC_FLAG_ALRBF, RTC_FLAG_ALRBWF, RTC_FORMAT_BIN, RTC_IT_ALRA, RTC_IT_ALRB, RTC_TIMEOUT_VALUE, RTC_TimeTypeDef::Seconds, __RTC_HandleTypeDef::State, RTC_TimeTypeDef::SubSeconds, and RTC_TimeTypeDef::TimeFormat.