LL_RTC_EnableRefClock() function

RTC Instance

Enable the write protection for RTC registers.

Disable the write protection for RTC registers.

Disable initialization mode (Free running mode)

Get Initialization flag

Get Hours format (24 hour/day or AM/PM hour format)

Get Registers synchronization flag

Set Asynchronous prescaler factor

Set Synchronous prescaler factor

Set time (hour, minute and second) in BCD format

Set date (WeekDay, Day, Month and Year) in BCD format DR MT LL_RTC_DATE_Config\n DR MU LL_RTC_DATE_Config\n DR DT LL_RTC_DATE_Config\n DR DU LL_RTC_DATE_Config\n DR YT LL_RTC_DATE_Config\n DR YU LL_RTC_DATE_Config

Enters the RTC Initialization mode.

Clear Alarm A flag

Clear Registers synchronization flag

Enable initialization mode

Set Hours format (24 hour/day or AM/PM hour format)

Get Hours in BCD format

Get Minutes in BCD format

Get Year in BCD format

Get Seconds in BCD format

Get Month in BCD format

Get Day in BCD format

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

Set Alarm A Time (hour, minute and second) in BCD format ALRMAR HT LL_RTC_ALMA_ConfigTime\n ALRMAR HU LL_RTC_ALMA_ConfigTime\n ALRMAR MNT LL_RTC_ALMA_ConfigTime\n ALRMAR MNU LL_RTC_ALMA_ConfigTime\n ALRMAR ST LL_RTC_ALMA_ConfigTime\n ALRMAR SU LL_RTC_ALMA_ConfigTime

Clear Wakeup timer flag

Reads data from the specified RTC Backup data Register.

Set ALARM A Day in BCD format

Set ALARM B Day in BCD format

Set Alarm B Time (hour, minute and second) in BCD format ALRMBR HT LL_RTC_ALMB_ConfigTime\n ALRMBR HU LL_RTC_ALMB_ConfigTime\n ALRMBR MNT LL_RTC_ALMB_ConfigTime\n ALRMBR MNU LL_RTC_ALMB_ConfigTime\n ALRMBR ST LL_RTC_ALMB_ConfigTime\n ALRMBR SU LL_RTC_ALMB_ConfigTime

Get Alarm A flag

Clear RTC_TAMP1 detection flag

Writes a data in a specified RTC Backup data register.

Enable Alarm A interrupt

Check if Alarm A interrupt is enabled or not

Check if Shadow registers bypass is enabled or not.

Enable Alarm A

Specify the Alarm A masks. ALRMAR MSK3 LL_RTC_ALMA_SetMask\n ALRMAR MSK2 LL_RTC_ALMA_SetMask\n ALRMAR MSK1 LL_RTC_ALMA_SetMask

Set the RTC current date.

Set the RTC Alarm A.

De-Initializes the RTC registers to their default reset values.

Initializes the RTC registers according to the specified parameters in RTC_InitStruct.

Set the RTC current time.

Get ALARM A Hours in BCD format

Specify the Alarm B masks. ALRMBR MSK3 LL_RTC_ALMB_SetMask\n ALRMBR MSK2 LL_RTC_ALMB_SetMask\n ALRMBR MSK1 LL_RTC_ALMB_SetMask

Enable AlarmB Week day selection (DU[3:0] represents the week day. DT[1:0] is do not care)

Disable AlarmA Week day selection (DU[3:0] represents the date )

Set ALARM A Weekday

Get ALARM A Minutes in BCD format

Get ALARM A Seconds in BCD format

Enable Timestamp

Set Time-stamp event active edge

Get Timestamp Hours in BCD format

Get Timestamp Minutes in BCD format

Get Timestamp Seconds in BCD format

Get Timestamp Month in BCD format

Get Timestamp date (WeekDay, Day and Month) in BCD format

Disable AlarmB Week day selection (DU[3:0] represents the date )

Set ALARM B Weekday

Get ALARM B Hours in BCD format

Get ALARM B Minutes in BCD format

Get ALARM B Seconds in BCD format

Enable RTC_TAMPx input detection TAFCR TAMP2E LL_RTC_TAMPER_Enable\n (*) value not applicable to all devices.

Clear RTC_TAMPx input detection TAFCR TAMP2E LL_RTC_TAMPER_Disable\n (*) value not applicable to all devices.

Clear Time-stamp flag

Get Wakeup timer write flag

Enable Time-stamp interrupt

Select Wakeup clock

Set Wakeup auto-reload value

Get RTC_TAMP1 detection flag

Get Time-stamp flag

Get Wakeup timer flag

Enable Active level for Tamper input TAFCR TAMP2TRG LL_RTC_TAMPER_EnableActiveLevel\n (*) value not applicable to all devices.

Enable Wakeup timer

Disable Wakeup timer

Enable Wakeup timer interrupt

Enable all Tamper Interrupt

Check if Time-stamp interrupt is enabled or not

Check if all the TAMPER interrupts are enabled or not

Enable AlarmA Week day selection (DU[3:0] represents the week day. DT[1:0] is do not care)

Set the RTC Alarm B.

Exit the RTC Initialization mode.

Get Alarm A time format (AM or PM notation)

Set ALARM A Hours in BCD format

Set ALARM A Minutes in BCD format

Get Alarm A subseconds value

Enable Alarm B

Disable Alarm B

Get the Alarm B masks. ALRMBR MSK3 LL_RTC_ALMB_GetMask\n ALRMBR MSK2 LL_RTC_ALMB_GetMask\n ALRMBR MSK1 LL_RTC_ALMB_GetMask

Get Alarm B Time (hour, minute and second) in BCD format

Mask the most-significant bits of the subseconds field starting from the bit specified in parameter Mask

Get Alarm A subseconds mask

Set Alarm A subseconds value

Get ALARM A Day in BCD format

Get ALARM A Weekday

Set Alarm A time format (AM/24-hour or PM notation)

Set ALARM A Seconds in BCD format

Get Alarm B subseconds value

Disable Timestamp

Get Time-stamp event active edge

Get Timestamp AM/PM notation (AM or 24-hour format)

Get Timestamp time (hour, minute and second) in BCD format

Get Timestamp Week day

Get Timestamp Day in BCD format

Disable RTC_TAMPx pull-up disable (Disable precharge of RTC_TAMPx pins)

Enable RTC_TAMPx pull-up disable ( Precharge RTC_TAMPx pins before sampling)

Set RTC_TAMPx precharge duration

Get RTC_TAMPx precharge duration

Set RTC_TAMPx filter count

Get RTC_TAMPx filter count

Set Tamper sampling frequency

Get ALARM B Day in BCD format

Get ALARM B Weekday

Set ALARM B time format (AM/24-hour or PM notation)

Get ALARM B time format (AM or PM notation)

Set ALARM B Hours in BCD format

Set ALARM B Minutes in BCD format

Set ALARM B Seconds in BCD format

Get Alarm B Time (hour, minute and second) in BCD format

Mask the most-significant bits of the subseconds field starting from the bit specified in parameter Mask

Get Alarm B subseconds mask

Set Alarm B subseconds value

Get time-stamp subseconds value

Activate timestamp on tamper detection event

Disable timestamp on tamper detection event

Set timestamp Pin (*) value not applicable to all devices.

Get timestamp Pin (*) value not applicable to all devices.

Clear Time-stamp overflow flag

Get Initialization status flag

Get Shift operation pending flag

Get Alarm B write flag

Get Alarm A write flag

Disable Time-stamp interrupt

Set Calibration output frequency (1 Hz or 512 Hz)

Get Calibration output frequency (1 Hz or 512 Hz) CR COSEL LL_RTC_CAL_GetOutputFreq

Enable Coarse digital calibration

Disable Coarse digital calibration

Set the coarse digital calibration

Get the coarse digital calibration value

Get the coarse digital calibration sign

Insert or not One RTCCLK pulse every 2exp11 pulses (frequency increased by 488.5 ppm)

Check if one RTCCLK has been inserted or not every 2exp11 pulses (frequency increased by 488.5 ppm)

Set smooth calibration cycle period

Get smooth calibration cycle period CALR CALW16 LL_RTC_CAL_GetPeriod

Set smooth Calibration minus

Get Wakeup clock

Get Wakeup auto-reload value

Get smooth Calibration minus

Get Recalibration pending Flag

Get Time-stamp overflow flag

Get Alarm B flag

Get Tamper sampling frequency

Disable Active level for Tamper input TAFCR TAMP2TRG LL_RTC_TAMPER_DisableActiveLevel\n (*) value not applicable to all devices.

Set Tamper Pin (*) value not applicable to all devices.

Get Tamper Pin (*) value not applicable to all devices.

Check if Wakeup timer is enabled or not

Clear Alarm B flag

Disable Wakeup timer interrupt

Enable Alarm B interrupt

Disable Alarm B interrupt

Disable Alarm A interrupt

Disable all Tamper Interrupt

Check if Wakeup timer interrupt is enabled or not

Check if Alarm B interrupt is enabled or not

Get the flag to be routed to RTC_ALARM output

Set RTC_ALARM output type (ALARM in push-pull or open-drain output)

Get RTC_ALARM output type (ALARM in push-pull or open-drain output)

Set Output polarity (pin is low when ALRAF/ALRBF/WUTF is asserted)

Get Output polarity

Select the flag to be routed to RTC_ALARM output

Set Minutes in BCD format

Set Seconds in BCD format

Set Year in BCD format

Set Week day

Get Week day

Set Month in BCD format

Enable Bypass the shadow registers

Disable Bypass the shadow registers

Disable RTC_REFIN reference clock detection (50 or 60 Hz)

Get Asynchronous prescaler factor

Get Synchronous prescaler factor

Set time format (AM/24-hour or PM notation)

Get time format (AM or PM notation)

Set Hours in BCD format

Get time (hour, minute and second) in BCD format

Memorize whether the daylight saving time change has been performed

Disable memorization whether the daylight saving time change has been performed.

Check if RTC Day Light Saving stored operation has been enabled or not

Subtract 1 hour (winter time change)

Add 1 hour (summer time change)

Get subseconds value in the synchronous prescaler counter.

Synchronize to a remote clock with a high degree of precision.

Set Day in BCD format

Get date (WeekDay, Day, Month and Year) in BCD format

Disable Alarm A

Get the Alarm A masks. ALRMAR MSK3 LL_RTC_ALMA_GetMask\n ALRMAR MSK2 LL_RTC_ALMA_GetMask\n ALRMAR MSK1 LL_RTC_ALMA_GetMask