ST STM32F2 User Manual

HAL RTC Generic Driver
UM1940
474/1371
DocID028236 Rev 2
Function description
This function handles AlarmA Polling request.
Parameters
hrtc: pointer to a RTC_HandleTypeDef structure that
contains the configuration information for RTC.
Timeout: Timeout duration
Return values
HAL: status
HAL_RTC_AlarmAEventCallback
Function name
void HAL_RTC_AlarmAEventCallback (RTC_HandleTypeDef *
hrtc)
Function description
Alarm A callback.
Parameters
hrtc: pointer to a RTC_HandleTypeDef structure that
contains the configuration information for RTC.
Return values
None:
HAL_RTC_WaitForSynchro
Function name
HAL_StatusTypeDef HAL_RTC_WaitForSynchro
(RTC_HandleTypeDef * hrtc)
Function description
Waits until the RTC Time and Date registers (RTC_TR and
RTC_DR) are synchronized with RTC APB clock.
Parameters
hrtc: pointer to a RTC_HandleTypeDef structure that
contains the configuration information for RTC.
Return values
HAL: status
Notes
The RTC Resynchronization mode is write protected, use the
__HAL_RTC_WRITEPROTECTION_DISABLE() before
calling this function.
To read the calendar through the shadow registers after
Calendar initialization, calendar update or after wake-up from
low power modes the software must first clear the RSF flag.
The software must then wait until it is set again before reading
the calendar, which means that the calendar registers have
been correctly copied into the RTC_TR and RTC_DR shadow
registers.
HAL_RTC_GetState
Function name
HAL_RTCStateTypeDef HAL_RTC_GetState
(RTC_HandleTypeDef * hrtc)
Function description
Returns the RTC state.
Parameters
hrtc: pointer to a RTC_HandleTypeDef structure that
contains the configuration information for RTC.
Return values
HAL: state
RTC_EnterInitMode
Function name
HAL_StatusTypeDef RTC_EnterInitMode

ST STM32F2 Specifications

General

Brand	ST
Model	STM32F2
Category	Microcontrollers
Language	English