ST STM32F2 User Manual

UM1940
HAL RTC Extension Driver
DocID028236 Rev 2
493/1371
Parameters
hrtc: pointer to a RTC_HandleTypeDef structure that
contains the configuration information for RTC.
CalibSign: Specifies the sign of the coarse calibration value.
This parameter can be one of the following values :
RTC_CALIBSIGN_POSITIVE: The value sign is positive
RTC_CALIBSIGN_NEGATIVE: The value sign is
negative
Value: value of coarse calibration expressed in ppm (coded
on 5 bits).
Return values
HAL: status
Notes
This Calibration value should be between 0 and 63 when
using negative sign with a 2-ppm step.
This Calibration value should be between 0 and 126 when
using positive sign with a 4-ppm step.
HAL_RTCEx_DeactivateCoarseCalib
Function name
HAL_StatusTypeDef HAL_RTCEx_DeactivateCoarseCalib
(RTC_HandleTypeDef * hrtc)
Function description
Deactivates the Coarse calibration parameters.
Parameters
hrtc: pointer to a RTC_HandleTypeDef structure that
contains the configuration information for RTC.
Return values
HAL: status
HAL_RTCEx_SetCalibrationOutPut
Function name
HAL_StatusTypeDef HAL_RTCEx_SetCalibrationOutPut
(RTC_HandleTypeDef * hrtc)
Function description
Configure the Calibration Pinout (RTC_CALIB).
Parameters
hrtc: : RTC handle
Return values
HAL: status
HAL_RTCEx_DeactivateCalibrationOutPut
Function name
HAL_StatusTypeDef
HAL_RTCEx_DeactivateCalibrationOutPut
(RTC_HandleTypeDef * hrtc)
Function description
Deactivates the Calibration Pinout (RTC_CALIB).
Parameters
hrtc: pointer to a RTC_HandleTypeDef structure that
contains the configuration information for RTC.
Return values
HAL: status
HAL_RTCEx_SetRefClock
Function name
HAL_StatusTypeDef HAL_RTCEx_SetRefClock
(RTC_HandleTypeDef * hrtc)
Function description
Enables the RTC reference clock detection.

ST STM32F2 Specifications

General

Brand	ST
Model	STM32F2
Category	Microcontrollers
Language	English