ST STM32F31xx

Real-time clock (RTC)
UM1581
388/584
DocID023800 Rev 1
 RTC_TamperSamplingFreq_RTCCLK_Div512 : Each
of the tamper inputs are sampled with a frequency =
RTCCLK / 512
 RTC_TamperSamplingFreq_RTCCLK_Div256 : Each
of the tamper inputs are sampled with a frequency =
RTCCLK / 256
Return values
 None.
Notes
 None.
19.2.32.5 RTC_TamperPinsPrechargeDuration
Function Name
void RTC_TamperPinsPrechargeDuration ( uint32_t
RTC_TamperPrechargeDuration)
Function Description
Configures the Tampers Pins input Precharge Duration.
Parameters
 RTC_TamperPrechargeDuration : Specifies the Tampers
Pins input Precharge Duration. This parameter can be one of
the following values:
 RTC_TamperPrechargeDuration_1RTCCLK : Tamper
pins are pre-charged before sampling during 1 RTCCLK
cycle
 RTC_TamperPrechargeDuration_2RTCCLK : Tamper
pins are pre-charged before sampling during 2 RTCCLK
cycle
 RTC_TamperPrechargeDuration_4RTCCLK : Tamper
pins are pre-charged before sampling during 4 RTCCLK
cycle
 RTC_TamperPrechargeDuration_8RTCCLK : Tamper
pins are pre-charged before sampling during 8 RTCCLK
cycle
Return values
 None.
Notes
 None.
19.2.32.6 RTC_TimeStampOnTamperDetectionCmd
Function Name
void RTC_TimeStampOnTamperDetectionCmd (
FunctionalState NewState)
Function Description
Enables or Disables the TimeStamp on Tamper Detection Event.