Eric Lewiston / STM32L4xx_HAL_Driver

Hal Drivers for L4

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Peripheral Control functions
Functions

Peripheral Control functions
[RTC Exported Functions]

Peripheral Control functions. More...

Functions

HAL_StatusTypeDef HAL_RTC_WaitForSynchro (RTC_HandleTypeDef *hrtc)
 Wait until the RTC Time and Date registers (RTC_TR and RTC_DR) are synchronized with RTC APB clock.

Detailed Description

Peripheral Control functions. 

 ===============================================================================
                     ##### Peripheral Control functions #####
 ===============================================================================
    [..]
    This subsection provides functions allowing to
      (+) Wait for RTC Time and Date Synchronization

Function Documentation

HAL_StatusTypeDef HAL_RTC_WaitForSynchro ( RTC_HandleTypeDef *  hrtc )

Wait until the RTC Time and Date registers (RTC_TR and RTC_DR) are synchronized with RTC APB clock.

Note:
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 wakeup 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.
Parameters:
hrtc,:RTC handle
Return values:
HALstatus

Definition at line 1385 of file stm32l4xx_hal_rtc.c.

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