AN3371 datasheet(39/45 Pages) STMICROELECTRONICS

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AN3371

RTC firmware driver API

Doc ID 018624 Rev 5

39/45

RTC digital coarse calibration functions

RTC_DigitalCalibConfig

Configures the coarse calibration

settings.

Yes

RTC_DigitalCalibCmd

Enables or disables the digital

calibration process.

Yes

RTC_CalibOutputCmd

Enables or disables the connection

of the RTCCLK/PREDIV_A[6:0]

clock to be output through the

relative pinout (RTC_CALIB pin).

Yes

RTC_CalibOutputConfig

Configure the calibration pinout

(RTC_CALIB) Selection (1 Hz or

512 Hz).

Yes

RTC_SmoothCalibConfi

Configures the smooth calibration

settings.

Yes

RTC timestamp functions

RTC_TimeStampCmd

Enables or disables the RTC Time-

stamp functionality with the

specified time-stamp pin

stimulating edge.

Yes

RTC_GetTimeStamp

Get the RTC time-stamp value and

masks.

Yes

RTC_GetTimeStampSu

bSecond

Get the RTC time-stamp sub-

seconds value.

Yes

RTC tamper functions

RTC_TamperTriggerCon

fig

Configures the tamper edge trigger.

Yes

RTC_TamperCmd

Enables or disables the tamper

detection.

Yes

RTC_TamperFilterConfi

RTC_TamperPullUpCmd.

Yes

RTC_TamperSamplingF

reqConfig

Configures the tamper sampling

frequency.

Yes

RTC_TamperPinsPrech

argeDuration

Configures the tamper pins input

precharge duration.

Yes

RTC_TimeStampOnTa

mperDetectionCmd

Enables or disables the precharge

of tamper pin.

Yes

RTC_TamperPullUpCm

Enables or disables the time-stamp

on Tamper detection event.

Yes

Table 16.

RTC function groups (continued)

Group

Function name

Description

ULPM

density

ULPH

density

series

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