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HAL_RTC_GetTime() function
Gets RTC current time.
Syntax
HAL_StatusTypeDef HAL_RTC_GetTime(RTC_HandleTypeDef *hrtc,
RTC_TimeTypeDef *sTime,
uint32_t Format);
Implemented in ![]()
stm32f4xx_hal_rtc.c:812
Return value
HAL status
Notes
You can use SubSeconds and SecondFraction (sTime structure fields returned) to convert SubSeconds value in second fraction ratio with time unit following generic formula: Second fraction ratio * time_unit = [(SecondFraction - SubSeconds) / (SecondFraction + 1)] * time_unit This conversion can be performed only if no shift operation is pending (ie. SHFP=0) when PREDIV_S >= SS You must call HAL_RTC_GetDate() after HAL_RTC_GetTime() to unlock the values in the higher-order calendar shadow registers to ensure consistency between the time and date values. Reading RTC current time locks the values in calendar shadow registers until current date is read to ensure consistency between the time and date values.
Related Functions
Found 58 other functions taking a ![]()
RTC_HandleTypeDef
argument:
Function
Description
Initializes the RTC peripheral
Deactivates wakeup timer counter.
Initializes the RTC MSP.
DeInitializes the RTC MSP.
Sets wakeup timer with interrupt.
Reads data from the specified RTC Backup data Register.
Sets RTC current time.
Gets RTC current date.
Handles Wakeup Timer interrupt request.
Wakeup Timer callback.
Writes a data in a specified RTC Backup data register.
Sets RTC current date.
Alarm A callback.
Handles Alarm interrupt request.
Handles Timestamp and Tamper interrupt request.
Deactivates Tamper.
Tamper 1 callback.
Sets the specified RTC Alarm with Interrupt.
Sets Tamper with interrupt.
Enters the RTC Initialization mode.
Exits the RTC Initialization mode.
Timestamp callback.
Sets Timestamp with Interrupt.
Gets the RTC Timestamp value.
Waits until the RTC Time and Date registers (RTC_TR and RTC_DR) are synchronized with RTC APB clock.
Deactivates the specified RTC Alarm.
Sets Tamper.
Enables the RTC reference clock detection.
Alarm B callback.
DeInitializes the RTC peripheral
Tamper 2 callback.
Sets the Smooth calibration parameters.
Configures the Synchronization Shift Control Settings.
Configures the Calibration Pinout (RTC_CALIB) Selection (1Hz or 512Hz).
Deactivates the Calibration Pinout (RTC_CALIB) Selection (1Hz or 512Hz).
Disable the RTC reference clock detection.
Enables the Bypass Shadow feature.
Disables the Bypass Shadow feature.
Handles Alarm B Polling request.
Sets Timestamp.
Deactivates Timestamp.
Sets the specified RTC Alarm.
Gets the RTC Alarm value and masks.
Handles Alarm A Polling request.
Daylight Saving Time, adds one hour to the calendar in one single operation without going through the initialization procedure.
Daylight Saving Time, subtracts one hour from the calendar in one single operation without going through the initialization procedure.
Daylight Saving Time, sets the store operation bit.
Daylight Saving Time, clears the store operation bit.
Daylight Saving Time, reads the store operation bit.
Returns the RTC state.
Handles Timestamp polling request.
Handles Tamper 1 Polling.
Handles Tamper 2 Polling.
Sets wakeup timer.
Gets wakeup timer counter.
Handles Wakeup Timer Polling.
Sets the Coarse calibration parameters.
Deactivates the Coarse calibration parameters.