/** | |
****************************************************************************** | |
* @file stm32f4xx_hal_rtc_ex.c | |
* @author MCD Application Team | |
* @version V1.7.0 | |
* @date 17-February-2017 | |
* @brief RTC HAL module driver. | |
* This file provides firmware functions to manage the following | |
* functionalities of the Real Time Clock (RTC) Extension peripheral: | |
* + RTC Time Stamp functions | |
* + RTC Tamper functions | |
* + RTC Wake-up functions | |
* + Extension Control functions | |
* + Extension RTC features functions | |
* | |
@verbatim | |
============================================================================== | |
##### How to use this driver ##### | |
============================================================================== | |
[..] | |
(+) Enable the RTC domain access. | |
(+) Configure the RTC Prescaler (Asynchronous and Synchronous) and RTC hour | |
format using the HAL_RTC_Init() function. | |
*** RTC Wake-up configuration *** | |
================================ | |
[..] | |
(+) To configure the RTC Wake-up Clock source and Counter use the HAL_RTC_SetWakeUpTimer() | |
function. You can also configure the RTC Wake-up timer in interrupt mode | |
using the HAL_RTC_SetWakeUpTimer_IT() function. | |
(+) To read the RTC Wake-up Counter register, use the HAL_RTC_GetWakeUpTimer() | |
function. | |
*** TimeStamp configuration *** | |
=============================== | |
[..] | |
(+) Configure the RTC_AFx trigger and enable the RTC TimeStamp using the | |
HAL_RTC_SetTimeStamp() function. You can also configure the RTC TimeStamp with | |
interrupt mode using the HAL_RTC_SetTimeStamp_IT() function. | |
(+) To read the RTC TimeStamp Time and Date register, use the HAL_RTC_GetTimeStamp() | |
function. | |
(+) The TIMESTAMP alternate function can be mapped either to RTC_AF1 (PC13) | |
or RTC_AF2 (PI8 or PA0 only for STM32F446xx devices) depending on the value of TSINSEL bit in | |
RTC_TAFCR register. The corresponding pin is also selected by HAL_RTC_SetTimeStamp() | |
or HAL_RTC_SetTimeStamp_IT() function. | |
*** Tamper configuration *** | |
============================ | |
[..] | |
(+) Enable the RTC Tamper and configure the Tamper filter count, trigger Edge | |
or Level according to the Tamper filter (if equal to 0 Edge else Level) | |
value, sampling frequency, precharge or discharge and Pull-UP using the | |
HAL_RTC_SetTamper() function. You can configure RTC Tamper in interrupt | |
mode using HAL_RTC_SetTamper_IT() function. | |
(+) The TAMPER1 alternate function can be mapped either to RTC_AF1 (PC13) | |
or RTC_AF2 (PI8 or PA0 only for STM32F446xx devices) depending on the value of TAMP1INSEL bit in | |
RTC_TAFCR register. The corresponding pin is also selected by HAL_RTC_SetTamper() | |
or HAL_RTC_SetTamper_IT() function. | |
*** Backup Data Registers configuration *** | |
=========================================== | |
[..] | |
(+) To write to the RTC Backup Data registers, use the HAL_RTC_BKUPWrite() | |
function. | |
(+) To read the RTC Backup Data registers, use the HAL_RTC_BKUPRead() | |
function. | |
@endverbatim | |
****************************************************************************** | |
* @attention | |
* | |
* <h2><center>© COPYRIGHT(c) 2017 STMicroelectronics</center></h2> | |
* | |
* Redistribution and use in source and binary forms, with or without modification, | |
* are permitted provided that the following conditions are met: | |
* 1. Redistributions of source code must retain the above copyright notice, | |
* this list of conditions and the following disclaimer. | |
* 2. Redistributions in binary form must reproduce the above copyright notice, | |
* this list of conditions and the following disclaimer in the documentation | |
* and/or other materials provided with the distribution. | |
* 3. Neither the name of STMicroelectronics nor the names of its contributors | |
* may be used to endorse or promote products derived from this software | |
* without specific prior written permission. | |
* | |
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE | |
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | |
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER | |
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, | |
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
* | |
****************************************************************************** | |
*/ | |
/* Includes ------------------------------------------------------------------*/ | |
#include "stm32f4xx_hal.h" | |
/** @addtogroup STM32F4xx_HAL_Driver | |
* @{ | |
*/ | |
/** @defgroup RTCEx RTCEx | |
* @brief RTC HAL module driver | |
* @{ | |
*/ | |
#ifdef HAL_RTC_MODULE_ENABLED | |
/* Private typedef -----------------------------------------------------------*/ | |
/* Private define ------------------------------------------------------------*/ | |
/* Private macro -------------------------------------------------------------*/ | |
/* Private variables ---------------------------------------------------------*/ | |
/* Private function prototypes -----------------------------------------------*/ | |
/* Private functions ---------------------------------------------------------*/ | |
/** @defgroup RTCEx_Exported_Functions RTCEx Exported Functions | |
* @{ | |
*/ | |
/** @defgroup RTCEx_Exported_Functions_Group1 RTC TimeStamp and Tamper functions | |
* @brief RTC TimeStamp and Tamper functions | |
* | |
@verbatim | |
=============================================================================== | |
##### RTC TimeStamp and Tamper functions ##### | |
=============================================================================== | |
[..] This section provides functions allowing to configure TimeStamp feature | |
@endverbatim | |
* @{ | |
*/ | |
/** | |
* @brief Sets TimeStamp. | |
* @note This API must be called before enabling the TimeStamp feature. | |
* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains | |
* the configuration information for RTC. | |
* @param TimeStampEdge: Specifies the pin edge on which the TimeStamp is | |
* activated. | |
* This parameter can be one of the following values: | |
* @arg RTC_TIMESTAMPEDGE_RISING: the Time stamp event occurs on the | |
* rising edge of the related pin. | |
* @arg RTC_TIMESTAMPEDGE_FALLING: the Time stamp event occurs on the | |
* falling edge of the related pin. | |
* @param RTC_TimeStampPin: specifies the RTC TimeStamp Pin. | |
* This parameter can be one of the following values: | |
* @arg RTC_TIMESTAMPPIN_DEFAULT: PC13 is selected as RTC TimeStamp Pin. | |
* @arg RTC_TIMESTAMPPIN_POS1: PI8/PA0 is selected as RTC TimeStamp Pin. | |
* (not applicable in the case of STM32F412xx, STM32F413xx and STM32F423xx devices) | |
* (PI8 for all STM32 devices except for STM32F446xx devices the PA0 is used) | |
* @arg RTC_TIMESTAMPPIN_PA0: PA0 is selected as RTC TimeStamp Pin only for STM32F446xx devices | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef HAL_RTCEx_SetTimeStamp(RTC_HandleTypeDef *hrtc, uint32_t TimeStampEdge, uint32_t RTC_TimeStampPin) | |
{ | |
uint32_t tmpreg = 0U; | |
/* Check the parameters */ | |
assert_param(IS_TIMESTAMP_EDGE(TimeStampEdge)); | |
assert_param(IS_RTC_TIMESTAMP_PIN(RTC_TimeStampPin)); | |
/* Process Locked */ | |
__HAL_LOCK(hrtc); | |
hrtc->State = HAL_RTC_STATE_BUSY; | |
/* Get the RTC_CR register and clear the bits to be configured */ | |
tmpreg = (uint32_t)(hrtc->Instance->CR & (uint32_t)~(RTC_CR_TSEDGE | RTC_CR_TSE)); | |
tmpreg|= TimeStampEdge; | |
/* Disable the write protection for RTC registers */ | |
__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc); | |
hrtc->Instance->TAFCR &= (uint32_t)~RTC_TAFCR_TSINSEL; | |
hrtc->Instance->TAFCR |= (uint32_t)(RTC_TimeStampPin); | |
/* Configure the Time Stamp TSEDGE and Enable bits */ | |
hrtc->Instance->CR = (uint32_t)tmpreg; | |
__HAL_RTC_TIMESTAMP_ENABLE(hrtc); | |
/* Enable the write protection for RTC registers */ | |
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc); | |
/* Change RTC state */ | |
hrtc->State = HAL_RTC_STATE_READY; | |
/* Process Unlocked */ | |
__HAL_UNLOCK(hrtc); | |
return HAL_OK; | |
} | |
/** | |
* @brief Sets TimeStamp with Interrupt. | |
* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains | |
* the configuration information for RTC. | |
* @note This API must be called before enabling the TimeStamp feature. | |
* @param TimeStampEdge: Specifies the pin edge on which the TimeStamp is | |
* activated. | |
* This parameter can be one of the following values: | |
* @arg RTC_TIMESTAMPEDGE_RISING: the Time stamp event occurs on the | |
* rising edge of the related pin. | |
* @arg RTC_TIMESTAMPEDGE_FALLING: the Time stamp event occurs on the | |
* falling edge of the related pin. | |
* @param RTC_TimeStampPin: Specifies the RTC TimeStamp Pin. | |
* This parameter can be one of the following values: | |
* @arg RTC_TIMESTAMPPIN_DEFAULT: PC13 is selected as RTC TimeStamp Pin. | |
* @arg RTC_TIMESTAMPPIN_PI8: PI8 is selected as RTC TimeStamp Pin. (not applicable in the case of STM32F446xx, STM32F412xx, STM32F413xx and STM32F423xx devices) | |
* @arg RTC_TIMESTAMPPIN_PA0: PA0 is selected as RTC TimeStamp Pin only for STM32F446xx devices | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef HAL_RTCEx_SetTimeStamp_IT(RTC_HandleTypeDef *hrtc, uint32_t TimeStampEdge, uint32_t RTC_TimeStampPin) | |
{ | |
uint32_t tmpreg = 0U; | |
/* Check the parameters */ | |
assert_param(IS_TIMESTAMP_EDGE(TimeStampEdge)); | |
assert_param(IS_RTC_TIMESTAMP_PIN(RTC_TimeStampPin)); | |
/* Process Locked */ | |
__HAL_LOCK(hrtc); | |
hrtc->State = HAL_RTC_STATE_BUSY; | |
/* Get the RTC_CR register and clear the bits to be configured */ | |
tmpreg = (uint32_t)(hrtc->Instance->CR & (uint32_t)~(RTC_CR_TSEDGE | RTC_CR_TSE)); | |
tmpreg |= TimeStampEdge; | |
/* Disable the write protection for RTC registers */ | |
__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc); | |
/* Configure the Time Stamp TSEDGE and Enable bits */ | |
hrtc->Instance->CR = (uint32_t)tmpreg; | |
hrtc->Instance->TAFCR &= (uint32_t)~RTC_TAFCR_TSINSEL; | |
hrtc->Instance->TAFCR |= (uint32_t)(RTC_TimeStampPin); | |
/* Clear RTC Timestamp flag */ | |
__HAL_RTC_TIMESTAMP_CLEAR_FLAG(hrtc, RTC_FLAG_TSF); | |
__HAL_RTC_TIMESTAMP_ENABLE(hrtc); | |
/* Enable IT timestamp */ | |
__HAL_RTC_TIMESTAMP_ENABLE_IT(hrtc,RTC_IT_TS); | |
/* RTC timestamp Interrupt Configuration: EXTI configuration */ | |
__HAL_RTC_TAMPER_TIMESTAMP_EXTI_ENABLE_IT(); | |
EXTI->RTSR |= RTC_EXTI_LINE_TAMPER_TIMESTAMP_EVENT; | |
/* Enable the write protection for RTC registers */ | |
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc); | |
hrtc->State = HAL_RTC_STATE_READY; | |
/* Process Unlocked */ | |
__HAL_UNLOCK(hrtc); | |
return HAL_OK; | |
} | |
/** | |
* @brief Deactivates TimeStamp. | |
* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains | |
* the configuration information for RTC. | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef HAL_RTCEx_DeactivateTimeStamp(RTC_HandleTypeDef *hrtc) | |
{ | |
uint32_t tmpreg = 0U; | |
/* Process Locked */ | |
__HAL_LOCK(hrtc); | |
hrtc->State = HAL_RTC_STATE_BUSY; | |
/* Disable the write protection for RTC registers */ | |
__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc); | |
/* In case of interrupt mode is used, the interrupt source must disabled */ | |
__HAL_RTC_TIMESTAMP_DISABLE_IT(hrtc, RTC_IT_TS); | |
/* Get the RTC_CR register and clear the bits to be configured */ | |
tmpreg = (uint32_t)(hrtc->Instance->CR & (uint32_t)~(RTC_CR_TSEDGE | RTC_CR_TSE)); | |
/* Configure the Time Stamp TSEDGE and Enable bits */ | |
hrtc->Instance->CR = (uint32_t)tmpreg; | |
/* Enable the write protection for RTC registers */ | |
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc); | |
hrtc->State = HAL_RTC_STATE_READY; | |
/* Process Unlocked */ | |
__HAL_UNLOCK(hrtc); | |
return HAL_OK; | |
} | |
/** | |
* @brief Gets the RTC TimeStamp value. | |
* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains | |
* the configuration information for RTC. | |
* @param sTimeStamp: Pointer to Time structure | |
* @param sTimeStampDate: Pointer to Date structure | |
* @param Format: specifies the format of the entered parameters. | |
* This parameter can be one of the following values: | |
* RTC_FORMAT_BIN: Binary data format | |
* RTC_FORMAT_BCD: BCD data format | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef HAL_RTCEx_GetTimeStamp(RTC_HandleTypeDef *hrtc, RTC_TimeTypeDef* sTimeStamp, RTC_DateTypeDef* sTimeStampDate, uint32_t Format) | |
{ | |
uint32_t tmptime = 0U, tmpdate = 0U; | |
/* Check the parameters */ | |
assert_param(IS_RTC_FORMAT(Format)); | |
/* Get the TimeStamp time and date registers values */ | |
tmptime = (uint32_t)(hrtc->Instance->TSTR & RTC_TR_RESERVED_MASK); | |
tmpdate = (uint32_t)(hrtc->Instance->TSDR & RTC_DR_RESERVED_MASK); | |
/* Fill the Time structure fields with the read parameters */ | |
sTimeStamp->Hours = (uint8_t)((tmptime & (RTC_TR_HT | RTC_TR_HU)) >> 16U); | |
sTimeStamp->Minutes = (uint8_t)((tmptime & (RTC_TR_MNT | RTC_TR_MNU)) >> 8U); | |
sTimeStamp->Seconds = (uint8_t)(tmptime & (RTC_TR_ST | RTC_TR_SU)); | |
sTimeStamp->TimeFormat = (uint8_t)((tmptime & (RTC_TR_PM)) >> 16U); | |
sTimeStamp->SubSeconds = (uint32_t) hrtc->Instance->TSSSR; | |
/* Fill the Date structure fields with the read parameters */ | |
sTimeStampDate->Year = 0U; | |
sTimeStampDate->Month = (uint8_t)((tmpdate & (RTC_DR_MT | RTC_DR_MU)) >> 8U); | |
sTimeStampDate->Date = (uint8_t)(tmpdate & (RTC_DR_DT | RTC_DR_DU)); | |
sTimeStampDate->WeekDay = (uint8_t)((tmpdate & (RTC_DR_WDU)) >> 13U); | |
/* Check the input parameters format */ | |
if(Format == RTC_FORMAT_BIN) | |
{ | |
/* Convert the TimeStamp structure parameters to Binary format */ | |
sTimeStamp->Hours = (uint8_t)RTC_Bcd2ToByte(sTimeStamp->Hours); | |
sTimeStamp->Minutes = (uint8_t)RTC_Bcd2ToByte(sTimeStamp->Minutes); | |
sTimeStamp->Seconds = (uint8_t)RTC_Bcd2ToByte(sTimeStamp->Seconds); | |
/* Convert the DateTimeStamp structure parameters to Binary format */ | |
sTimeStampDate->Month = (uint8_t)RTC_Bcd2ToByte(sTimeStampDate->Month); | |
sTimeStampDate->Date = (uint8_t)RTC_Bcd2ToByte(sTimeStampDate->Date); | |
sTimeStampDate->WeekDay = (uint8_t)RTC_Bcd2ToByte(sTimeStampDate->WeekDay); | |
} | |
/* Clear the TIMESTAMP Flag */ | |
__HAL_RTC_TIMESTAMP_CLEAR_FLAG(hrtc, RTC_FLAG_TSF); | |
return HAL_OK; | |
} | |
/** | |
* @brief Sets Tamper | |
* @note By calling this API we disable the tamper interrupt for all tampers. | |
* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains | |
* the configuration information for RTC. | |
* @param sTamper: Pointer to Tamper Structure. | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef HAL_RTCEx_SetTamper(RTC_HandleTypeDef *hrtc, RTC_TamperTypeDef* sTamper) | |
{ | |
uint32_t tmpreg = 0U; | |
/* Check the parameters */ | |
assert_param(IS_RTC_TAMPER(sTamper->Tamper)); | |
assert_param(IS_RTC_TAMPER_PIN(sTamper->PinSelection)); | |
assert_param(IS_RTC_TAMPER_TRIGGER(sTamper->Trigger)); | |
assert_param(IS_RTC_TAMPER_FILTER(sTamper->Filter)); | |
assert_param(IS_RTC_TAMPER_SAMPLING_FREQ(sTamper->SamplingFrequency)); | |
assert_param(IS_RTC_TAMPER_PRECHARGE_DURATION(sTamper->PrechargeDuration)); | |
assert_param(IS_RTC_TAMPER_PULLUP_STATE(sTamper->TamperPullUp)); | |
assert_param(IS_RTC_TAMPER_TIMESTAMPONTAMPER_DETECTION(sTamper->TimeStampOnTamperDetection)); | |
/* Process Locked */ | |
__HAL_LOCK(hrtc); | |
hrtc->State = HAL_RTC_STATE_BUSY; | |
if(sTamper->Trigger != RTC_TAMPERTRIGGER_RISINGEDGE) | |
{ | |
sTamper->Trigger = (uint32_t)(sTamper->Tamper << 1U); | |
} | |
tmpreg = ((uint32_t)sTamper->Tamper | (uint32_t)sTamper->PinSelection | (uint32_t)sTamper->Trigger |\ | |
(uint32_t)sTamper->Filter | (uint32_t)sTamper->SamplingFrequency | (uint32_t)sTamper->PrechargeDuration |\ | |
(uint32_t)sTamper->TamperPullUp | sTamper->TimeStampOnTamperDetection); | |
hrtc->Instance->TAFCR &= (uint32_t)~((uint32_t)sTamper->Tamper | (uint32_t)(sTamper->Tamper << 1U) | (uint32_t)RTC_TAFCR_TAMPTS |\ | |
(uint32_t)RTC_TAFCR_TAMPFREQ | (uint32_t)RTC_TAFCR_TAMPFLT | (uint32_t)RTC_TAFCR_TAMPPRCH |\ | |
(uint32_t)RTC_TAFCR_TAMPPUDIS | (uint32_t)RTC_TAFCR_TAMPINSEL | (uint32_t)RTC_TAFCR_TAMPIE); | |
hrtc->Instance->TAFCR |= tmpreg; | |
hrtc->State = HAL_RTC_STATE_READY; | |
/* Process Unlocked */ | |
__HAL_UNLOCK(hrtc); | |
return HAL_OK; | |
} | |
/** | |
* @brief Sets Tamper with interrupt. | |
* @note By calling this API we force the tamper interrupt for all tampers. | |
* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains | |
* the configuration information for RTC. | |
* @param sTamper: Pointer to RTC Tamper. | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef HAL_RTCEx_SetTamper_IT(RTC_HandleTypeDef *hrtc, RTC_TamperTypeDef* sTamper) | |
{ | |
uint32_t tmpreg = 0U; | |
/* Check the parameters */ | |
assert_param(IS_RTC_TAMPER(sTamper->Tamper)); | |
assert_param(IS_RTC_TAMPER_PIN(sTamper->PinSelection)); | |
assert_param(IS_RTC_TAMPER_TRIGGER(sTamper->Trigger)); | |
assert_param(IS_RTC_TAMPER_FILTER(sTamper->Filter)); | |
assert_param(IS_RTC_TAMPER_SAMPLING_FREQ(sTamper->SamplingFrequency)); | |
assert_param(IS_RTC_TAMPER_PRECHARGE_DURATION(sTamper->PrechargeDuration)); | |
assert_param(IS_RTC_TAMPER_PULLUP_STATE(sTamper->TamperPullUp)); | |
assert_param(IS_RTC_TAMPER_TIMESTAMPONTAMPER_DETECTION(sTamper->TimeStampOnTamperDetection)); | |
/* Process Locked */ | |
__HAL_LOCK(hrtc); | |
hrtc->State = HAL_RTC_STATE_BUSY; | |
/* Configure the tamper trigger */ | |
if(sTamper->Trigger != RTC_TAMPERTRIGGER_RISINGEDGE) | |
{ | |
sTamper->Trigger = (uint32_t)(sTamper->Tamper << 1U); | |
} | |
tmpreg = ((uint32_t)sTamper->Tamper | (uint32_t)sTamper->PinSelection | (uint32_t)sTamper->Trigger |\ | |
(uint32_t)sTamper->Filter | (uint32_t)sTamper->SamplingFrequency | (uint32_t)sTamper->PrechargeDuration |\ | |
(uint32_t)sTamper->TamperPullUp | sTamper->TimeStampOnTamperDetection); | |
hrtc->Instance->TAFCR &= (uint32_t)~((uint32_t)sTamper->Tamper | (uint32_t)(sTamper->Tamper << 1U) | (uint32_t)RTC_TAFCR_TAMPTS |\ | |
(uint32_t)RTC_TAFCR_TAMPFREQ | (uint32_t)RTC_TAFCR_TAMPFLT | (uint32_t)RTC_TAFCR_TAMPPRCH |\ | |
(uint32_t)RTC_TAFCR_TAMPPUDIS | (uint32_t)RTC_TAFCR_TAMPINSEL); | |
hrtc->Instance->TAFCR |= tmpreg; | |
/* Configure the Tamper Interrupt in the RTC_TAFCR */ | |
hrtc->Instance->TAFCR |= (uint32_t)RTC_TAFCR_TAMPIE; | |
if(sTamper->Tamper == RTC_TAMPER_1) | |
{ | |
/* Clear RTC Tamper 1 flag */ | |
__HAL_RTC_TAMPER_CLEAR_FLAG(hrtc, RTC_FLAG_TAMP1F); | |
} | |
else | |
{ | |
/* Clear RTC Tamper 2 flag */ | |
__HAL_RTC_TAMPER_CLEAR_FLAG(hrtc, RTC_FLAG_TAMP2F); | |
} | |
/* RTC Tamper Interrupt Configuration: EXTI configuration */ | |
__HAL_RTC_TAMPER_TIMESTAMP_EXTI_ENABLE_IT(); | |
EXTI->RTSR |= RTC_EXTI_LINE_TAMPER_TIMESTAMP_EVENT; | |
hrtc->State = HAL_RTC_STATE_READY; | |
/* Process Unlocked */ | |
__HAL_UNLOCK(hrtc); | |
return HAL_OK; | |
} | |
/** | |
* @brief Deactivates Tamper. | |
* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains | |
* the configuration information for RTC. | |
* @param Tamper: Selected tamper pin. | |
* This parameter can be RTC_Tamper_1 and/or RTC_TAMPER_2. | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef HAL_RTCEx_DeactivateTamper(RTC_HandleTypeDef *hrtc, uint32_t Tamper) | |
{ | |
assert_param(IS_RTC_TAMPER(Tamper)); | |
/* Process Locked */ | |
__HAL_LOCK(hrtc); | |
hrtc->State = HAL_RTC_STATE_BUSY; | |
/* Disable the selected Tamper pin */ | |
hrtc->Instance->TAFCR &= (uint32_t)~Tamper; | |
hrtc->State = HAL_RTC_STATE_READY; | |
/* Process Unlocked */ | |
__HAL_UNLOCK(hrtc); | |
return HAL_OK; | |
} | |
/** | |
* @brief This function handles TimeStamp interrupt request. | |
* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains | |
* the configuration information for RTC. | |
* @retval None | |
*/ | |
void HAL_RTCEx_TamperTimeStampIRQHandler(RTC_HandleTypeDef *hrtc) | |
{ | |
if(__HAL_RTC_TIMESTAMP_GET_IT(hrtc, RTC_IT_TS)) | |
{ | |
/* Get the status of the Interrupt */ | |
if((uint32_t)(hrtc->Instance->CR & RTC_IT_TS) != (uint32_t)RESET) | |
{ | |
/* TIMESTAMP callback */ | |
HAL_RTCEx_TimeStampEventCallback(hrtc); | |
/* Clear the TIMESTAMP interrupt pending bit */ | |
__HAL_RTC_TIMESTAMP_CLEAR_FLAG(hrtc,RTC_FLAG_TSF); | |
} | |
} | |
/* Get the status of the Interrupt */ | |
if(__HAL_RTC_TAMPER_GET_IT(hrtc,RTC_IT_TAMP1)) | |
{ | |
/* Get the TAMPER Interrupt enable bit and pending bit */ | |
if(((hrtc->Instance->TAFCR & (RTC_TAFCR_TAMPIE))) != (uint32_t)RESET) | |
{ | |
/* Tamper callback */ | |
HAL_RTCEx_Tamper1EventCallback(hrtc); | |
/* Clear the Tamper interrupt pending bit */ | |
__HAL_RTC_TAMPER_CLEAR_FLAG(hrtc,RTC_FLAG_TAMP1F); | |
} | |
} | |
/* Get the status of the Interrupt */ | |
if(__HAL_RTC_TAMPER_GET_IT(hrtc, RTC_IT_TAMP2)) | |
{ | |
/* Get the TAMPER Interrupt enable bit and pending bit */ | |
if(((hrtc->Instance->TAFCR & RTC_TAFCR_TAMPIE)) != (uint32_t)RESET) | |
{ | |
/* Tamper callback */ | |
HAL_RTCEx_Tamper2EventCallback(hrtc); | |
/* Clear the Tamper interrupt pending bit */ | |
__HAL_RTC_TAMPER_CLEAR_FLAG(hrtc, RTC_FLAG_TAMP2F); | |
} | |
} | |
/* Clear the EXTI's Flag for RTC TimeStamp and Tamper */ | |
__HAL_RTC_TAMPER_TIMESTAMP_EXTI_CLEAR_FLAG(); | |
/* Change RTC state */ | |
hrtc->State = HAL_RTC_STATE_READY; | |
} | |
/** | |
* @brief TimeStamp callback. | |
* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains | |
* the configuration information for RTC. | |
* @retval None | |
*/ | |
__weak void HAL_RTCEx_TimeStampEventCallback(RTC_HandleTypeDef *hrtc) | |
{ | |
/* Prevent unused argument(s) compilation warning */ | |
UNUSED(hrtc); | |
/* NOTE : This function Should not be modified, when the callback is needed, | |
the HAL_RTC_TimeStampEventCallback could be implemented in the user file | |
*/ | |
} | |
/** | |
* @brief Tamper 1 callback. | |
* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains | |
* the configuration information for RTC. | |
* @retval None | |
*/ | |
__weak void HAL_RTCEx_Tamper1EventCallback(RTC_HandleTypeDef *hrtc) | |
{ | |
/* Prevent unused argument(s) compilation warning */ | |
UNUSED(hrtc); | |
/* NOTE : This function Should not be modified, when the callback is needed, | |
the HAL_RTC_Tamper1EventCallback could be implemented in the user file | |
*/ | |
} | |
/** | |
* @brief Tamper 2 callback. | |
* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains | |
* the configuration information for RTC. | |
* @retval None | |
*/ | |
__weak void HAL_RTCEx_Tamper2EventCallback(RTC_HandleTypeDef *hrtc) | |
{ | |
/* Prevent unused argument(s) compilation warning */ | |
UNUSED(hrtc); | |
/* NOTE : This function Should not be modified, when the callback is needed, | |
the HAL_RTC_Tamper2EventCallback could be implemented in the user file | |
*/ | |
} | |
/** | |
* @brief This function handles TimeStamp polling request. | |
* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains | |
* the configuration information for RTC. | |
* @param Timeout: Timeout duration | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef HAL_RTCEx_PollForTimeStampEvent(RTC_HandleTypeDef *hrtc, uint32_t Timeout) | |
{ | |
uint32_t tickstart = 0U; | |
/* Get tick */ | |
tickstart = HAL_GetTick(); | |
while(__HAL_RTC_TIMESTAMP_GET_FLAG(hrtc, RTC_FLAG_TSF) == RESET) | |
{ | |
if(__HAL_RTC_TIMESTAMP_GET_FLAG(hrtc, RTC_FLAG_TSOVF) != RESET) | |
{ | |
/* Clear the TIMESTAMP Overrun Flag */ | |
__HAL_RTC_TIMESTAMP_CLEAR_FLAG(hrtc, RTC_FLAG_TSOVF); | |
/* Change TIMESTAMP state */ | |
hrtc->State = HAL_RTC_STATE_ERROR; | |
return HAL_ERROR; | |
} | |
if(Timeout != HAL_MAX_DELAY) | |
{ | |
if((Timeout == 0U)||((HAL_GetTick() - tickstart ) > Timeout)) | |
{ | |
hrtc->State = HAL_RTC_STATE_TIMEOUT; | |
return HAL_TIMEOUT; | |
} | |
} | |
} | |
/* Change RTC state */ | |
hrtc->State = HAL_RTC_STATE_READY; | |
return HAL_OK; | |
} | |
/** | |
* @brief This function handles Tamper1 Polling. | |
* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains | |
* the configuration information for RTC. | |
* @param Timeout: Timeout duration | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef HAL_RTCEx_PollForTamper1Event(RTC_HandleTypeDef *hrtc, uint32_t Timeout) | |
{ | |
uint32_t tickstart = 0U; | |
/* Get tick */ | |
tickstart = HAL_GetTick(); | |
/* Get the status of the Interrupt */ | |
while(__HAL_RTC_TAMPER_GET_FLAG(hrtc, RTC_FLAG_TAMP1F)== RESET) | |
{ | |
if(Timeout != HAL_MAX_DELAY) | |
{ | |
if((Timeout == 0U)||((HAL_GetTick() - tickstart ) > Timeout)) | |
{ | |
hrtc->State = HAL_RTC_STATE_TIMEOUT; | |
return HAL_TIMEOUT; | |
} | |
} | |
} | |
/* Clear the Tamper Flag */ | |
__HAL_RTC_TAMPER_CLEAR_FLAG(hrtc,RTC_FLAG_TAMP1F); | |
/* Change RTC state */ | |
hrtc->State = HAL_RTC_STATE_READY; | |
return HAL_OK; | |
} | |
/** | |
* @brief This function handles Tamper2 Polling. | |
* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains | |
* the configuration information for RTC. | |
* @param Timeout: Timeout duration | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef HAL_RTCEx_PollForTamper2Event(RTC_HandleTypeDef *hrtc, uint32_t Timeout) | |
{ | |
uint32_t tickstart = 0U; | |
/* Get tick */ | |
tickstart = HAL_GetTick(); | |
/* Get the status of the Interrupt */ | |
while(__HAL_RTC_TAMPER_GET_FLAG(hrtc, RTC_FLAG_TAMP2F) == RESET) | |
{ | |
if(Timeout != HAL_MAX_DELAY) | |
{ | |
if((Timeout == 0U)||((HAL_GetTick() - tickstart ) > Timeout)) | |
{ | |
hrtc->State = HAL_RTC_STATE_TIMEOUT; | |
return HAL_TIMEOUT; | |
} | |
} | |
} | |
/* Clear the Tamper Flag */ | |
__HAL_RTC_TAMPER_CLEAR_FLAG(hrtc,RTC_FLAG_TAMP2F); | |
/* Change RTC state */ | |
hrtc->State = HAL_RTC_STATE_READY; | |
return HAL_OK; | |
} | |
/** | |
* @} | |
*/ | |
/** @defgroup RTCEx_Exported_Functions_Group2 RTC Wake-up functions | |
* @brief RTC Wake-up functions | |
* | |
@verbatim | |
=============================================================================== | |
##### RTC Wake-up functions ##### | |
=============================================================================== | |
[..] This section provides functions allowing to configure Wake-up feature | |
@endverbatim | |
* @{ | |
*/ | |
/** | |
* @brief Sets wake up timer. | |
* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains | |
* the configuration information for RTC. | |
* @param WakeUpCounter: Wake up counter | |
* @param WakeUpClock: Wake up clock | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef HAL_RTCEx_SetWakeUpTimer(RTC_HandleTypeDef *hrtc, uint32_t WakeUpCounter, uint32_t WakeUpClock) | |
{ | |
uint32_t tickstart = 0U; | |
/* Check the parameters */ | |
assert_param(IS_RTC_WAKEUP_CLOCK(WakeUpClock)); | |
assert_param(IS_RTC_WAKEUP_COUNTER(WakeUpCounter)); | |
/* Process Locked */ | |
__HAL_LOCK(hrtc); | |
hrtc->State = HAL_RTC_STATE_BUSY; | |
/* Disable the write protection for RTC registers */ | |
__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc); | |
/*Check RTC WUTWF flag is reset only when wake up timer enabled*/ | |
if((hrtc->Instance->CR & RTC_CR_WUTE) != RESET) | |
{ | |
tickstart = HAL_GetTick(); | |
/* Wait till RTC WUTWF flag is reset and if Time out is reached exit */ | |
while(__HAL_RTC_WAKEUPTIMER_GET_FLAG(hrtc, RTC_FLAG_WUTWF) == SET) | |
{ | |
if((HAL_GetTick() - tickstart ) > RTC_TIMEOUT_VALUE) | |
{ | |
/* Enable the write protection for RTC registers */ | |
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc); | |
hrtc->State = HAL_RTC_STATE_TIMEOUT; | |
/* Process Unlocked */ | |
__HAL_UNLOCK(hrtc); | |
return HAL_TIMEOUT; | |
} | |
} | |
} | |
__HAL_RTC_WAKEUPTIMER_DISABLE(hrtc); | |
tickstart = HAL_GetTick(); | |
/* Wait till RTC WUTWF flag is set and if Time out is reached exit */ | |
while(__HAL_RTC_WAKEUPTIMER_GET_FLAG(hrtc, RTC_FLAG_WUTWF) == RESET) | |
{ | |
if((HAL_GetTick() - tickstart ) > RTC_TIMEOUT_VALUE) | |
{ | |
/* Enable the write protection for RTC registers */ | |
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc); | |
hrtc->State = HAL_RTC_STATE_TIMEOUT; | |
/* Process Unlocked */ | |
__HAL_UNLOCK(hrtc); | |
return HAL_TIMEOUT; | |
} | |
} | |
/* Clear the Wake-up Timer clock source bits in CR register */ | |
hrtc->Instance->CR &= (uint32_t)~RTC_CR_WUCKSEL; | |
/* Configure the clock source */ | |
hrtc->Instance->CR |= (uint32_t)WakeUpClock; | |
/* Configure the Wake-up Timer counter */ | |
hrtc->Instance->WUTR = (uint32_t)WakeUpCounter; | |
/* Enable the Wake-up Timer */ | |
__HAL_RTC_WAKEUPTIMER_ENABLE(hrtc); | |
/* Enable the write protection for RTC registers */ | |
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc); | |
hrtc->State = HAL_RTC_STATE_READY; | |
/* Process Unlocked */ | |
__HAL_UNLOCK(hrtc); | |
return HAL_OK; | |
} | |
/** | |
* @brief Sets wake up timer with interrupt | |
* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains | |
* the configuration information for RTC. | |
* @param WakeUpCounter: Wake up counter | |
* @param WakeUpClock: Wake up clock | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef HAL_RTCEx_SetWakeUpTimer_IT(RTC_HandleTypeDef *hrtc, uint32_t WakeUpCounter, uint32_t WakeUpClock) | |
{ | |
__IO uint32_t count; | |
/* Check the parameters */ | |
assert_param(IS_RTC_WAKEUP_CLOCK(WakeUpClock)); | |
assert_param(IS_RTC_WAKEUP_COUNTER(WakeUpCounter)); | |
/* Process Locked */ | |
__HAL_LOCK(hrtc); | |
hrtc->State = HAL_RTC_STATE_BUSY; | |
/* Disable the write protection for RTC registers */ | |
__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc); | |
/* Check RTC WUTWF flag is reset only when wake up timer enabled */ | |
if((hrtc->Instance->CR & RTC_CR_WUTE) != RESET) | |
{ | |
/* Wait till RTC WUTWF flag is reset and if Time out is reached exit */ | |
count = RTC_TIMEOUT_VALUE * (SystemCoreClock / 32U / 1000U); | |
do | |
{ | |
if(count-- == 0U) | |
{ | |
/* Enable the write protection for RTC registers */ | |
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc); | |
hrtc->State = HAL_RTC_STATE_TIMEOUT; | |
/* Process Unlocked */ | |
__HAL_UNLOCK(hrtc); | |
return HAL_TIMEOUT; | |
} | |
} | |
while(__HAL_RTC_WAKEUPTIMER_GET_FLAG(hrtc, RTC_FLAG_WUTWF) == SET); | |
} | |
__HAL_RTC_WAKEUPTIMER_DISABLE(hrtc); | |
/* Wait till RTC WUTWF flag is set and if Time out is reached exit */ | |
count = RTC_TIMEOUT_VALUE * (SystemCoreClock / 32U / 1000U); | |
do | |
{ | |
if(count-- == 0U) | |
{ | |
/* Enable the write protection for RTC registers */ | |
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc); | |
hrtc->State = HAL_RTC_STATE_TIMEOUT; | |
/* Process Unlocked */ | |
__HAL_UNLOCK(hrtc); | |
return HAL_TIMEOUT; | |
} | |
} | |
while(__HAL_RTC_WAKEUPTIMER_GET_FLAG(hrtc, RTC_FLAG_WUTWF) == RESET); | |
/* Configure the Wake-up Timer counter */ | |
hrtc->Instance->WUTR = (uint32_t)WakeUpCounter; | |
/* Clear the Wake-up Timer clock source bits in CR register */ | |
hrtc->Instance->CR &= (uint32_t)~RTC_CR_WUCKSEL; | |
/* Configure the clock source */ | |
hrtc->Instance->CR |= (uint32_t)WakeUpClock; | |
/* RTC WakeUpTimer Interrupt Configuration: EXTI configuration */ | |
__HAL_RTC_WAKEUPTIMER_EXTI_ENABLE_IT(); | |
EXTI->RTSR |= RTC_EXTI_LINE_WAKEUPTIMER_EVENT; | |
/* Clear RTC Wake Up timer Flag */ | |
__HAL_RTC_WAKEUPTIMER_CLEAR_FLAG(hrtc, RTC_FLAG_WUTF); | |
/* Configure the Interrupt in the RTC_CR register */ | |
__HAL_RTC_WAKEUPTIMER_ENABLE_IT(hrtc,RTC_IT_WUT); | |
/* Enable the Wake-up Timer */ | |
__HAL_RTC_WAKEUPTIMER_ENABLE(hrtc); | |
/* Enable the write protection for RTC registers */ | |
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc); | |
hrtc->State = HAL_RTC_STATE_READY; | |
/* Process Unlocked */ | |
__HAL_UNLOCK(hrtc); | |
return HAL_OK; | |
} | |
/** | |
* @brief Deactivates wake up timer counter. | |
* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains | |
* the configuration information for RTC. | |
* @retval HAL status | |
*/ | |
uint32_t HAL_RTCEx_DeactivateWakeUpTimer(RTC_HandleTypeDef *hrtc) | |
{ | |
uint32_t tickstart = 0U; | |
/* Process Locked */ | |
__HAL_LOCK(hrtc); | |
hrtc->State = HAL_RTC_STATE_BUSY; | |
/* Disable the write protection for RTC registers */ | |
__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc); | |
/* Disable the Wake-up Timer */ | |
__HAL_RTC_WAKEUPTIMER_DISABLE(hrtc); | |
/* In case of interrupt mode is used, the interrupt source must disabled */ | |
__HAL_RTC_WAKEUPTIMER_DISABLE_IT(hrtc,RTC_IT_WUT); | |
/* Get tick */ | |
tickstart = HAL_GetTick(); | |
/* Wait till RTC WUTWF flag is set and if Time out is reached exit */ | |
while(__HAL_RTC_WAKEUPTIMER_GET_FLAG(hrtc, RTC_FLAG_WUTWF) == RESET) | |
{ | |
if((HAL_GetTick() - tickstart ) > RTC_TIMEOUT_VALUE) | |
{ | |
/* Enable the write protection for RTC registers */ | |
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc); | |
hrtc->State = HAL_RTC_STATE_TIMEOUT; | |
/* Process Unlocked */ | |
__HAL_UNLOCK(hrtc); | |
return HAL_TIMEOUT; | |
} | |
} | |
/* Enable the write protection for RTC registers */ | |
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc); | |
hrtc->State = HAL_RTC_STATE_READY; | |
/* Process Unlocked */ | |
__HAL_UNLOCK(hrtc); | |
return HAL_OK; | |
} | |
/** | |
* @brief Gets wake up timer counter. | |
* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains | |
* the configuration information for RTC. | |
* @retval Counter value | |
*/ | |
uint32_t HAL_RTCEx_GetWakeUpTimer(RTC_HandleTypeDef *hrtc) | |
{ | |
/* Get the counter value */ | |
return ((uint32_t)(hrtc->Instance->WUTR & RTC_WUTR_WUT)); | |
} | |
/** | |
* @brief This function handles Wake Up Timer interrupt request. | |
* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains | |
* the configuration information for RTC. | |
* @retval None | |
*/ | |
void HAL_RTCEx_WakeUpTimerIRQHandler(RTC_HandleTypeDef *hrtc) | |
{ | |
if(__HAL_RTC_WAKEUPTIMER_GET_IT(hrtc, RTC_IT_WUT)) | |
{ | |
/* Get the status of the Interrupt */ | |
if((uint32_t)(hrtc->Instance->CR & RTC_IT_WUT) != (uint32_t)RESET) | |
{ | |
/* WAKEUPTIMER callback */ | |
HAL_RTCEx_WakeUpTimerEventCallback(hrtc); | |
/* Clear the WAKEUPTIMER interrupt pending bit */ | |
__HAL_RTC_WAKEUPTIMER_CLEAR_FLAG(hrtc, RTC_FLAG_WUTF); | |
} | |
} | |
/* Clear the EXTI's line Flag for RTC WakeUpTimer */ | |
__HAL_RTC_WAKEUPTIMER_EXTI_CLEAR_FLAG(); | |
/* Change RTC state */ | |
hrtc->State = HAL_RTC_STATE_READY; | |
} | |
/** | |
* @brief Wake Up Timer callback. | |
* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains | |
* the configuration information for RTC. | |
* @retval None | |
*/ | |
__weak void HAL_RTCEx_WakeUpTimerEventCallback(RTC_HandleTypeDef *hrtc) | |
{ | |
/* Prevent unused argument(s) compilation warning */ | |
UNUSED(hrtc); | |
/* NOTE : This function Should not be modified, when the callback is needed, | |
the HAL_RTC_WakeUpTimerEventCallback could be implemented in the user file | |
*/ | |
} | |
/** | |
* @brief This function handles Wake Up Timer Polling. | |
* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains | |
* the configuration information for RTC. | |
* @param Timeout: Timeout duration | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef HAL_RTCEx_PollForWakeUpTimerEvent(RTC_HandleTypeDef *hrtc, uint32_t Timeout) | |
{ | |
uint32_t tickstart = 0U; | |
/* Get tick */ | |
tickstart = HAL_GetTick(); | |
while(__HAL_RTC_WAKEUPTIMER_GET_FLAG(hrtc, RTC_FLAG_WUTF) == RESET) | |
{ | |
if(Timeout != HAL_MAX_DELAY) | |
{ | |
if((Timeout == 0U)||((HAL_GetTick() - tickstart ) > Timeout)) | |
{ | |
hrtc->State = HAL_RTC_STATE_TIMEOUT; | |
return HAL_TIMEOUT; | |
} | |
} | |
} | |
/* Clear the WAKEUPTIMER Flag */ | |
__HAL_RTC_WAKEUPTIMER_CLEAR_FLAG(hrtc, RTC_FLAG_WUTF); | |
/* Change RTC state */ | |
hrtc->State = HAL_RTC_STATE_READY; | |
return HAL_OK; | |
} | |
/** | |
* @} | |
*/ | |
/** @defgroup RTCEx_Exported_Functions_Group3 Extension Peripheral Control functions | |
* @brief Extension Peripheral Control functions | |
* | |
@verbatim | |
=============================================================================== | |
##### Extension Peripheral Control functions ##### | |
=============================================================================== | |
[..] | |
This subsection provides functions allowing to | |
(+) Write a data in a specified RTC Backup data register | |
(+) Read a data in a specified RTC Backup data register | |
(+) Set the Coarse calibration parameters. | |
(+) Deactivate the Coarse calibration parameters | |
(+) Set the Smooth calibration parameters. | |
(+) Configure the Synchronization Shift Control Settings. | |
(+) Configure the Calibration Pinout (RTC_CALIB) Selection (1Hz or 512Hz). | |
(+) Deactivate the Calibration Pinout (RTC_CALIB) Selection (1Hz or 512Hz). | |
(+) Enable the RTC reference clock detection. | |
(+) Disable the RTC reference clock detection. | |
(+) Enable the Bypass Shadow feature. | |
(+) Disable the Bypass Shadow feature. | |
@endverbatim | |
* @{ | |
*/ | |
/** | |
* @brief Writes a data in a specified RTC Backup data register. | |
* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains | |
* the configuration information for RTC. | |
* @param BackupRegister: RTC Backup data Register number. | |
* This parameter can be: RTC_BKP_DRx where x can be from 0 to 19 to | |
* specify the register. | |
* @param Data: Data to be written in the specified RTC Backup data register. | |
* @retval None | |
*/ | |
void HAL_RTCEx_BKUPWrite(RTC_HandleTypeDef *hrtc, uint32_t BackupRegister, uint32_t Data) | |
{ | |
uint32_t tmp = 0U; | |
/* Check the parameters */ | |
assert_param(IS_RTC_BKP(BackupRegister)); | |
tmp = (uint32_t)&(hrtc->Instance->BKP0R); | |
tmp += (BackupRegister * 4U); | |
/* Write the specified register */ | |
*(__IO uint32_t *)tmp = (uint32_t)Data; | |
} | |
/** | |
* @brief Reads data from the specified RTC Backup data Register. | |
* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains | |
* the configuration information for RTC. | |
* @param BackupRegister: RTC Backup data Register number. | |
* This parameter can be: RTC_BKP_DRx where x can be from 0 to 19 to | |
* specify the register. | |
* @retval Read value | |
*/ | |
uint32_t HAL_RTCEx_BKUPRead(RTC_HandleTypeDef *hrtc, uint32_t BackupRegister) | |
{ | |
uint32_t tmp = 0U; | |
/* Check the parameters */ | |
assert_param(IS_RTC_BKP(BackupRegister)); | |
tmp = (uint32_t)&(hrtc->Instance->BKP0R); | |
tmp += (BackupRegister * 4U); | |
/* Read the specified register */ | |
return (*(__IO uint32_t *)tmp); | |
} | |
/** | |
* @brief Sets the Coarse calibration parameters. | |
* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains | |
* the configuration information for RTC. | |
* @param CalibSign: Specifies the sign of the coarse calibration value. | |
* This parameter can be one of the following values : | |
* @arg RTC_CALIBSIGN_POSITIVE: The value sign is positive | |
* @arg RTC_CALIBSIGN_NEGATIVE: The value sign is negative | |
* @param Value: value of coarse calibration expressed in ppm (coded on 5 bits). | |
* | |
* @note This Calibration value should be between 0 and 63 when using negative | |
* sign with a 2-ppm step. | |
* | |
* @note This Calibration value should be between 0 and 126 when using positive | |
* sign with a 4-ppm step. | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef HAL_RTCEx_SetCoarseCalib(RTC_HandleTypeDef* hrtc, uint32_t CalibSign, uint32_t Value) | |
{ | |
/* Check the parameters */ | |
assert_param(IS_RTC_CALIB_SIGN(CalibSign)); | |
assert_param(IS_RTC_CALIB_VALUE(Value)); | |
/* Process Locked */ | |
__HAL_LOCK(hrtc); | |
hrtc->State = HAL_RTC_STATE_BUSY; | |
/* Disable the write protection for RTC registers */ | |
__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc); | |
/* Set Initialization mode */ | |
if(RTC_EnterInitMode(hrtc) != HAL_OK) | |
{ | |
/* Enable the write protection for RTC registers */ | |
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc); | |
/* Set RTC state*/ | |
hrtc->State = HAL_RTC_STATE_ERROR; | |
/* Process Unlocked */ | |
__HAL_UNLOCK(hrtc); | |
return HAL_ERROR; | |
} | |
else | |
{ | |
/* Enable the Coarse Calibration */ | |
__HAL_RTC_COARSE_CALIB_ENABLE(hrtc); | |
/* Set the coarse calibration value */ | |
hrtc->Instance->CALIBR = (uint32_t)(CalibSign|Value); | |
/* Exit Initialization mode */ | |
hrtc->Instance->ISR &= (uint32_t)~RTC_ISR_INIT; | |
} | |
/* Enable the write protection for RTC registers */ | |
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc); | |
/* Change state */ | |
hrtc->State = HAL_RTC_STATE_READY; | |
/* Process Unlocked */ | |
__HAL_UNLOCK(hrtc); | |
return HAL_OK; | |
} | |
/** | |
* @brief Deactivates the Coarse calibration parameters. | |
* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains | |
* the configuration information for RTC. | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef HAL_RTCEx_DeactivateCoarseCalib(RTC_HandleTypeDef* hrtc) | |
{ | |
/* Process Locked */ | |
__HAL_LOCK(hrtc); | |
hrtc->State = HAL_RTC_STATE_BUSY; | |
/* Disable the write protection for RTC registers */ | |
__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc); | |
/* Set Initialization mode */ | |
if(RTC_EnterInitMode(hrtc) != HAL_OK) | |
{ | |
/* Enable the write protection for RTC registers */ | |
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc); | |
/* Set RTC state*/ | |
hrtc->State = HAL_RTC_STATE_ERROR; | |
/* Process Unlocked */ | |
__HAL_UNLOCK(hrtc); | |
return HAL_ERROR; | |
} | |
else | |
{ | |
/* Enable the Coarse Calibration */ | |
__HAL_RTC_COARSE_CALIB_DISABLE(hrtc); | |
/* Exit Initialization mode */ | |
hrtc->Instance->ISR &= (uint32_t)~RTC_ISR_INIT; | |
} | |
/* Enable the write protection for RTC registers */ | |
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc); | |
/* Change state */ | |
hrtc->State = HAL_RTC_STATE_READY; | |
/* Process Unlocked */ | |
__HAL_UNLOCK(hrtc); | |
return HAL_OK; | |
} | |
/** | |
* @brief Sets the Smooth calibration parameters. | |
* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains | |
* the configuration information for RTC. | |
* @param SmoothCalibPeriod: Select the Smooth Calibration Period. | |
* This parameter can be can be one of the following values : | |
* @arg RTC_SMOOTHCALIB_PERIOD_32SEC: The smooth calibration period is 32s. | |
* @arg RTC_SMOOTHCALIB_PERIOD_16SEC: The smooth calibration period is 16s. | |
* @arg RTC_SMOOTHCALIB_PERIOD_8SEC: The smooth calibration period is 8s. | |
* @param SmoothCalibPlusPulses: Select to Set or reset the CALP bit. | |
* This parameter can be one of the following values: | |
* @arg RTC_SMOOTHCALIB_PLUSPULSES_SET: Add one RTCCLK pulse every 2*11 pulses. | |
* @arg RTC_SMOOTHCALIB_PLUSPULSES_RESET: No RTCCLK pulses are added. | |
* @param SmouthCalibMinusPulsesValue: Select the value of CALM[8:0] bits. | |
* This parameter can be one any value from 0 to 0x000001FF. | |
* @note To deactivate the smooth calibration, the field SmoothCalibPlusPulses | |
* must be equal to SMOOTHCALIB_PLUSPULSES_RESET and the field | |
* SmouthCalibMinusPulsesValue must be equal to 0. | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef HAL_RTCEx_SetSmoothCalib(RTC_HandleTypeDef* hrtc, uint32_t SmoothCalibPeriod, uint32_t SmoothCalibPlusPulses, uint32_t SmouthCalibMinusPulsesValue) | |
{ | |
uint32_t tickstart = 0U; | |
/* Check the parameters */ | |
assert_param(IS_RTC_SMOOTH_CALIB_PERIOD(SmoothCalibPeriod)); | |
assert_param(IS_RTC_SMOOTH_CALIB_PLUS(SmoothCalibPlusPulses)); | |
assert_param(IS_RTC_SMOOTH_CALIB_MINUS(SmouthCalibMinusPulsesValue)); | |
/* Process Locked */ | |
__HAL_LOCK(hrtc); | |
hrtc->State = HAL_RTC_STATE_BUSY; | |
/* Disable the write protection for RTC registers */ | |
__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc); | |
/* check if a calibration is pending*/ | |
if((hrtc->Instance->ISR & RTC_ISR_RECALPF) != RESET) | |
{ | |
/* Get tick */ | |
tickstart = HAL_GetTick(); | |
/* check if a calibration is pending*/ | |
while((hrtc->Instance->ISR & RTC_ISR_RECALPF) != RESET) | |
{ | |
if((HAL_GetTick() - tickstart ) > RTC_TIMEOUT_VALUE) | |
{ | |
/* Enable the write protection for RTC registers */ | |
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc); | |
/* Change RTC state */ | |
hrtc->State = HAL_RTC_STATE_TIMEOUT; | |
/* Process Unlocked */ | |
__HAL_UNLOCK(hrtc); | |
return HAL_TIMEOUT; | |
} | |
} | |
} | |
/* Configure the Smooth calibration settings */ | |
hrtc->Instance->CALR = (uint32_t)((uint32_t)SmoothCalibPeriod | (uint32_t)SmoothCalibPlusPulses | (uint32_t)SmouthCalibMinusPulsesValue); | |
/* Enable the write protection for RTC registers */ | |
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc); | |
/* Change RTC state */ | |
hrtc->State = HAL_RTC_STATE_READY; | |
/* Process Unlocked */ | |
__HAL_UNLOCK(hrtc); | |
return HAL_OK; | |
} | |
/** | |
* @brief Configures the Synchronization Shift Control Settings. | |
* @note When REFCKON is set, firmware must not write to Shift control register. | |
* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains | |
* the configuration information for RTC. | |
* @param ShiftAdd1S: Select to add or not 1 second to the time calendar. | |
* This parameter can be one of the following values : | |
* @arg RTC_SHIFTADD1S_SET: Add one second to the clock calendar. | |
* @arg RTC_SHIFTADD1S_RESET: No effect. | |
* @param ShiftSubFS: Select the number of Second Fractions to substitute. | |
* This parameter can be one any value from 0 to 0x7FFF. | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef HAL_RTCEx_SetSynchroShift(RTC_HandleTypeDef* hrtc, uint32_t ShiftAdd1S, uint32_t ShiftSubFS) | |
{ | |
uint32_t tickstart = 0U; | |
/* Check the parameters */ | |
assert_param(IS_RTC_SHIFT_ADD1S(ShiftAdd1S)); | |
assert_param(IS_RTC_SHIFT_SUBFS(ShiftSubFS)); | |
/* Process Locked */ | |
__HAL_LOCK(hrtc); | |
hrtc->State = HAL_RTC_STATE_BUSY; | |
/* Disable the write protection for RTC registers */ | |
__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc); | |
/* Get tick */ | |
tickstart = HAL_GetTick(); | |
/* Wait until the shift is completed*/ | |
while((hrtc->Instance->ISR & RTC_ISR_SHPF) != RESET) | |
{ | |
if((HAL_GetTick() - tickstart ) > RTC_TIMEOUT_VALUE) | |
{ | |
/* Enable the write protection for RTC registers */ | |
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc); | |
hrtc->State = HAL_RTC_STATE_TIMEOUT; | |
/* Process Unlocked */ | |
__HAL_UNLOCK(hrtc); | |
return HAL_TIMEOUT; | |
} | |
} | |
/* Check if the reference clock detection is disabled */ | |
if((hrtc->Instance->CR & RTC_CR_REFCKON) == RESET) | |
{ | |
/* Configure the Shift settings */ | |
hrtc->Instance->SHIFTR = (uint32_t)(uint32_t)(ShiftSubFS) | (uint32_t)(ShiftAdd1S); | |
/* If RTC_CR_BYPSHAD bit = 0, wait for synchro else this check is not needed */ | |
if((hrtc->Instance->CR & RTC_CR_BYPSHAD) == RESET) | |
{ | |
if(HAL_RTC_WaitForSynchro(hrtc) != HAL_OK) | |
{ | |
/* Enable the write protection for RTC registers */ | |
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc); | |
hrtc->State = HAL_RTC_STATE_ERROR; | |
/* Process Unlocked */ | |
__HAL_UNLOCK(hrtc); | |
return HAL_ERROR; | |
} | |
} | |
} | |
else | |
{ | |
/* Enable the write protection for RTC registers */ | |
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc); | |
/* Change RTC state */ | |
hrtc->State = HAL_RTC_STATE_ERROR; | |
/* Process Unlocked */ | |
__HAL_UNLOCK(hrtc); | |
return HAL_ERROR; | |
} | |
/* Enable the write protection for RTC registers */ | |
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc); | |
/* Change RTC state */ | |
hrtc->State = HAL_RTC_STATE_READY; | |
/* Process Unlocked */ | |
__HAL_UNLOCK(hrtc); | |
return HAL_OK; | |
} | |
/** | |
* @brief Configures the Calibration Pinout (RTC_CALIB) Selection (1Hz or 512Hz). | |
* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains | |
* the configuration information for RTC. | |
* @param CalibOutput: Select the Calibration output Selection . | |
* This parameter can be one of the following values: | |
* @arg RTC_CALIBOUTPUT_512HZ: A signal has a regular waveform at 512Hz. | |
* @arg RTC_CALIBOUTPUT_1HZ: A signal has a regular waveform at 1Hz. | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef HAL_RTCEx_SetCalibrationOutPut(RTC_HandleTypeDef* hrtc, uint32_t CalibOutput) | |
{ | |
/* Check the parameters */ | |
assert_param(IS_RTC_CALIB_OUTPUT(CalibOutput)); | |
/* Process Locked */ | |
__HAL_LOCK(hrtc); | |
hrtc->State = HAL_RTC_STATE_BUSY; | |
/* Disable the write protection for RTC registers */ | |
__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc); | |
/* Clear flags before config */ | |
hrtc->Instance->CR &= (uint32_t)~RTC_CR_COSEL; | |
/* Configure the RTC_CR register */ | |
hrtc->Instance->CR |= (uint32_t)CalibOutput; | |
__HAL_RTC_CALIBRATION_OUTPUT_ENABLE(hrtc); | |
/* Enable the write protection for RTC registers */ | |
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc); | |
/* Change RTC state */ | |
hrtc->State = HAL_RTC_STATE_READY; | |
/* Process Unlocked */ | |
__HAL_UNLOCK(hrtc); | |
return HAL_OK; | |
} | |
/** | |
* @brief Deactivates the Calibration Pinout (RTC_CALIB) Selection (1Hz or 512Hz). | |
* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains | |
* the configuration information for RTC. | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef HAL_RTCEx_DeactivateCalibrationOutPut(RTC_HandleTypeDef* hrtc) | |
{ | |
/* Process Locked */ | |
__HAL_LOCK(hrtc); | |
hrtc->State = HAL_RTC_STATE_BUSY; | |
/* Disable the write protection for RTC registers */ | |
__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc); | |
__HAL_RTC_CALIBRATION_OUTPUT_DISABLE(hrtc); | |
/* Enable the write protection for RTC registers */ | |
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc); | |
/* Change RTC state */ | |
hrtc->State = HAL_RTC_STATE_READY; | |
/* Process Unlocked */ | |
__HAL_UNLOCK(hrtc); | |
return HAL_OK; | |
} | |
/** | |
* @brief Enables the RTC reference clock detection. | |
* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains | |
* the configuration information for RTC. | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef HAL_RTCEx_SetRefClock(RTC_HandleTypeDef* hrtc) | |
{ | |
/* Process Locked */ | |
__HAL_LOCK(hrtc); | |
hrtc->State = HAL_RTC_STATE_BUSY; | |
/* Disable the write protection for RTC registers */ | |
__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc); | |
/* Set Initialization mode */ | |
if(RTC_EnterInitMode(hrtc) != HAL_OK) | |
{ | |
/* Enable the write protection for RTC registers */ | |
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc); | |
/* Set RTC state*/ | |
hrtc->State = HAL_RTC_STATE_ERROR; | |
/* Process Unlocked */ | |
__HAL_UNLOCK(hrtc); | |
return HAL_ERROR; | |
} | |
else | |
{ | |
__HAL_RTC_CLOCKREF_DETECTION_ENABLE(hrtc); | |
/* Exit Initialization mode */ | |
hrtc->Instance->ISR &= (uint32_t)~RTC_ISR_INIT; | |
} | |
/* Enable the write protection for RTC registers */ | |
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc); | |
/* Change RTC state */ | |
hrtc->State = HAL_RTC_STATE_READY; | |
/* Process Unlocked */ | |
__HAL_UNLOCK(hrtc); | |
return HAL_OK; | |
} | |
/** | |
* @brief Disable the RTC reference clock detection. | |
* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains | |
* the configuration information for RTC. | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef HAL_RTCEx_DeactivateRefClock(RTC_HandleTypeDef* hrtc) | |
{ | |
/* Process Locked */ | |
__HAL_LOCK(hrtc); | |
hrtc->State = HAL_RTC_STATE_BUSY; | |
/* Disable the write protection for RTC registers */ | |
__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc); | |
/* Set Initialization mode */ | |
if(RTC_EnterInitMode(hrtc) != HAL_OK) | |
{ | |
/* Enable the write protection for RTC registers */ | |
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc); | |
/* Set RTC state*/ | |
hrtc->State = HAL_RTC_STATE_ERROR; | |
/* Process Unlocked */ | |
__HAL_UNLOCK(hrtc); | |
return HAL_ERROR; | |
} | |
else | |
{ | |
__HAL_RTC_CLOCKREF_DETECTION_DISABLE(hrtc); | |
/* Exit Initialization mode */ | |
hrtc->Instance->ISR &= (uint32_t)~RTC_ISR_INIT; | |
} | |
/* Enable the write protection for RTC registers */ | |
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc); | |
/* Change RTC state */ | |
hrtc->State = HAL_RTC_STATE_READY; | |
/* Process Unlocked */ | |
__HAL_UNLOCK(hrtc); | |
return HAL_OK; | |
} | |
/** | |
* @brief Enables the Bypass Shadow feature. | |
* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains | |
* the configuration information for RTC. | |
* @note When the Bypass Shadow is enabled the calendar value are taken | |
* directly from the Calendar counter. | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef HAL_RTCEx_EnableBypassShadow(RTC_HandleTypeDef* hrtc) | |
{ | |
/* Process Locked */ | |
__HAL_LOCK(hrtc); | |
hrtc->State = HAL_RTC_STATE_BUSY; | |
/* Disable the write protection for RTC registers */ | |
__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc); | |
/* Set the BYPSHAD bit */ | |
hrtc->Instance->CR |= (uint8_t)RTC_CR_BYPSHAD; | |
/* Enable the write protection for RTC registers */ | |
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc); | |
/* Change RTC state */ | |
hrtc->State = HAL_RTC_STATE_READY; | |
/* Process Unlocked */ | |
__HAL_UNLOCK(hrtc); | |
return HAL_OK; | |
} | |
/** | |
* @brief Disables the Bypass Shadow feature. | |
* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains | |
* the configuration information for RTC. | |
* @note When the Bypass Shadow is enabled the calendar value are taken | |
* directly from the Calendar counter. | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef HAL_RTCEx_DisableBypassShadow(RTC_HandleTypeDef* hrtc) | |
{ | |
/* Process Locked */ | |
__HAL_LOCK(hrtc); | |
hrtc->State = HAL_RTC_STATE_BUSY; | |
/* Disable the write protection for RTC registers */ | |
__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc); | |
/* Reset the BYPSHAD bit */ | |
hrtc->Instance->CR &= (uint8_t)~RTC_CR_BYPSHAD; | |
/* Enable the write protection for RTC registers */ | |
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc); | |
/* Change RTC state */ | |
hrtc->State = HAL_RTC_STATE_READY; | |
/* Process Unlocked */ | |
__HAL_UNLOCK(hrtc); | |
return HAL_OK; | |
} | |
/** | |
* @} | |
*/ | |
/** @defgroup RTCEx_Exported_Functions_Group4 Extended features functions | |
* @brief Extended features functions | |
* | |
@verbatim | |
=============================================================================== | |
##### Extended features functions ##### | |
=============================================================================== | |
[..] This section provides functions allowing to: | |
(+) RTC Alarm B callback | |
(+) RTC Poll for Alarm B request | |
@endverbatim | |
* @{ | |
*/ | |
/** | |
* @brief Alarm B callback. | |
* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains | |
* the configuration information for RTC. | |
* @retval None | |
*/ | |
__weak void HAL_RTCEx_AlarmBEventCallback(RTC_HandleTypeDef *hrtc) | |
{ | |
/* Prevent unused argument(s) compilation warning */ | |
UNUSED(hrtc); | |
/* NOTE : This function Should not be modified, when the callback is needed, | |
the HAL_RTC_AlarmBEventCallback could be implemented in the user file | |
*/ | |
} | |
/** | |
* @brief This function handles AlarmB Polling request. | |
* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains | |
* the configuration information for RTC. | |
* @param Timeout: Timeout duration | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef HAL_RTCEx_PollForAlarmBEvent(RTC_HandleTypeDef *hrtc, uint32_t Timeout) | |
{ | |
uint32_t tickstart = 0U; | |
/* Get tick */ | |
tickstart = HAL_GetTick(); | |
while(__HAL_RTC_ALARM_GET_FLAG(hrtc, RTC_FLAG_ALRBF) == RESET) | |
{ | |
if(Timeout != HAL_MAX_DELAY) | |
{ | |
if((Timeout == 0U)||((HAL_GetTick() - tickstart ) > Timeout)) | |
{ | |
hrtc->State = HAL_RTC_STATE_TIMEOUT; | |
return HAL_TIMEOUT; | |
} | |
} | |
} | |
/* Clear the Alarm Flag */ | |
__HAL_RTC_ALARM_CLEAR_FLAG(hrtc, RTC_FLAG_ALRBF); | |
/* Change RTC state */ | |
hrtc->State = HAL_RTC_STATE_READY; | |
return HAL_OK; | |
} | |
/** | |
* @} | |
*/ | |
/** | |
* @} | |
*/ | |
#endif /* HAL_RTC_MODULE_ENABLED */ | |
/** | |
* @} | |
*/ | |
/** | |
* @} | |
*/ | |
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |