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Diffstat (limited to 'tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32L0/stm32l0xx_hal_rtc_ex.c')
| -rw-r--r-- | tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32L0/stm32l0xx_hal_rtc_ex.c | 1863 |
1 files changed, 1863 insertions, 0 deletions
diff --git a/tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32L0/stm32l0xx_hal_rtc_ex.c b/tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32L0/stm32l0xx_hal_rtc_ex.c new file mode 100644 index 0000000000..4066be268c --- /dev/null +++ b/tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32L0/stm32l0xx_hal_rtc_ex.c @@ -0,0 +1,1863 @@ +/** + ****************************************************************************** + * @file stm32l0xx_hal_rtc_ex.c + * @author MCD Application Team + * @version V1.2.0 + * @date 06-February-2015 + * @brief Extended RTC HAL module driver. + * + * This file provides firmware functions to manage the following + * functionalities of the Real Time Clock (RTC) Extended peripheral: + * + RTC Time Stamp functions + * + RTC Tamper functions + * + RTC Wake-up functions + * + Extended Control functions + * + Extended RTC features functions + * + @verbatim + ============================================================================== + ##### Backup Domain Operating Condition ##### + ============================================================================== + [..] As long as the supply voltage remains in the operating range, + the RTC never stops, regardless of the device status (Run mode, + low power modes or under reset). + + ##### Backup Domain Reset ##### + ================================================================== + [..] The backup domain reset sets all RTC registers and the RCC_CSR register + to their reset values. + [..] A backup domain reset is generated when one of the following events occurs: + (+) Software reset, triggered by setting the RTCRST bit in the + RCC Control Status register (RCC_CSR). + (+) Power reset (BOR/POR/PDR). + + ##### Backup Domain Access ##### + ================================================================== + [..] After reset, the backup domain (RTC registers and RTC backup data registers) + is protected against possible unwanted write accesses. + [..] To enable access to the RTC Domain and RTC registers, proceed as follows: + (+) Enable the Power Controller (PWR) APB1 interface clock using the + __HAL_RCC_PWR_CLK_ENABLE() function. + (+) Enable access to RTC domain using the HAL_PWR_EnableBkUpAccess() function. + (+) Select the RTC clock source using the __HAL_RCC_RTC_CONFIG() function. + (+) Enable RTC Clock using the __HAL_RCC_RTC_ENABLE() function. + + + ##### 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. + + *** Time and Date configuration *** + =================================== + [..] + (+) To configure the RTC Calendar (Time and Date) use the HAL_RTC_SetTime() + and HAL_RTC_SetDate() functions. + (+) To read the RTC Calendar, use the HAL_RTC_GetTime() and HAL_RTC_GetDate() functions. + + *** Alarm configuration *** + =========================== + [..] + (+) To configure the RTC Alarm use the HAL_RTC_SetAlarm() function. + You can also configure the RTC Alarm with interrupt mode using the HAL_RTC_SetAlarm_IT() function. + (+) To read the RTC Alarm, use the HAL_RTC_GetAlarm() function. + + *** RTC Wakeup configuration *** + ================================ + [..] + (+) To configure the RTC Wakeup Clock source and Counter use the HAL_RTCEx_SetWakeUpTimer() + function. You can also configure the RTC Wakeup timer with interrupt mode + using the HAL_RTCEx_SetWakeUpTimer_IT() function. + (+) To read the RTC WakeUp Counter register, use the HAL_RTCEx_GetWakeUpTimer() + function. + + *** Outputs configuration *** + ============================= + [..] The RTC has 2 different outputs: + (+) RTC_ALARM: this output is used to manage the RTC Alarm A, Alarm B + and WaKeUp signals. + To output the selected RTC signal, use the HAL_RTC_Init() function. + (+) RTC_CALIB: this output is 512Hz signal or 1Hz. + To enable the RTC_CALIB, use the HAL_RTCEx_SetCalibrationOutPut() function. + (+) Two pins can be used as RTC_ALARM or RTC_CALIB (PC13, PB14) managed on + the RTC_OR register. + (+) When the RTC_CALIB or RTC_ALARM output is selected, the RTC_OUT pin is + automatically configured in output alternate function. + + *** Smooth digital Calibration configuration *** + ================================================ + [..] + (+) Configure the RTC Original Digital Calibration Value and the corresponding + calibration cycle period (32s,16s and 8s) using the HAL_RTCEx_SetSmoothCalib() + function. + + *** TimeStamp configuration *** + =============================== + [..] + (+) Enables 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. + + *** 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, NoErase, MaskFlag, precharge or discharge and + Pull-UP using the HAL_RTC_SetTamper() function. You can configure RTC Tamper + with interrupt mode using HAL_RTC_SetTamper_IT() function. + (+) The default configuration of the Tamper erases the backup registers. To avoid + erase, enable the NoErase field on the RTC_TAMPCR register. + + *** 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. + (+) The backup registers are reset when a tamper detection event occurs + + + ##### RTC and low power modes ##### + ================================================================== + [..] The MCU can be woken up from a low power mode by an RTC alternate + function. + [..] The RTC alternate functions are the RTC alarms (Alarm A and Alarm B), + RTC wakeup, RTC tamper event detection and RTC time stamp event detection. + These RTC alternate functions can wake up the system from the Stop and + Standby low power modes. + [..] The system can also wake up from low power modes without depending + on an external interrupt (Auto-wakeup mode), by using the RTC alarm + or the RTC wakeup events. + [..] The RTC provides a programmable time base for waking up from the + Stop or Standby mode at regular intervals. + Wakeup from STOP and Standby modes is possible only when the RTC clock source + is LSE or LSI. + + @endverbatim + ****************************************************************************** + * @attention + * + * <h2><center>© COPYRIGHT(c) 2015 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 "stm32l0xx_hal.h" + +/** @addtogroup STM32L0xx_HAL_Driver + * @{ + */ + +/** @addtogroup RTCEx + * @brief RTC Extended HAL module driver + * @{ + */ + +#ifdef HAL_RTC_MODULE_ENABLED + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +/* Private function prototypes -----------------------------------------------*/ +/* Exported functions --------------------------------------------------------*/ + +/** @addtogroup RTCEx_Exported_Functions + * @{ + */ + + +/** @addtogroup RTCEx_Exported_Functions_Group1 + * @brief RTC TimeStamp and Tamper functions + * +@verbatim + =============================================================================== + ##### RTC TimeStamp and Tamper functions ##### + =============================================================================== + + [..] This section provide functions allowing to configure TimeStamp feature + +@endverbatim + * @{ + */ + +/** + * @brief Sets TimeStamp. + * @note This API must be called before enabling the TimeStamp feature. + * @param hrtc: RTC handle + * @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_PC13: PC13 is selected as RTC TimeStamp Pin. + * The RTC TimeStamp Pin is per default PC13, but for reasons of + * compatibility, this parameter is used. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_RTCEx_SetTimeStamp(RTC_HandleTypeDef *hrtc, uint32_t TimeStampEdge, uint32_t RTC_TimeStampPin) +{ + uint32_t tmpreg = 0; + + /* 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; + + __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: RTC handle + * @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_PC13: PC13 is selected as RTC TimeStamp Pin. + * The RTC TimeStamp Pin is per default PC13, but for reasons of + * compatibility, this parameter is used. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_RTCEx_SetTimeStamp_IT(RTC_HandleTypeDef *hrtc, uint32_t TimeStampEdge, uint32_t RTC_TimeStampPin) +{ + uint32_t tmpreg = 0; + + /* 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; + + __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(); + + __HAL_RTC_TAMPER_TIMESTAMP_EXTI_ENABLE_RISING_EDGE(); + + /* 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: RTC handle + * @retval HAL status + */ +HAL_StatusTypeDef HAL_RTCEx_DeactivateTimeStamp(RTC_HandleTypeDef *hrtc) +{ + uint32_t tmpreg = 0; + + /* 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: RTC handle + + * @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 = 0, tmpdate = 0; + + /* 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)) >> 16); + sTimeStamp->Minutes = (uint8_t)((tmptime & (RTC_TR_MNT | RTC_TR_MNU)) >> 8); + sTimeStamp->Seconds = (uint8_t)(tmptime & (RTC_TR_ST | RTC_TR_SU)); + sTimeStamp->TimeFormat = (uint8_t)((tmptime & (RTC_TR_PM)) >> 16); + sTimeStamp->SubSeconds = (uint32_t) hrtc->Instance->TSSSR; + + /* Fill the Date structure fields with the read parameters */ + sTimeStampDate->Year = 0; + sTimeStampDate->Month = (uint8_t)((tmpdate & (RTC_DR_MT | RTC_DR_MU)) >> 8); + sTimeStampDate->Date = (uint8_t)(tmpdate & (RTC_DR_DT | RTC_DR_DU)); + sTimeStampDate->WeekDay = (uint8_t)((tmpdate & (RTC_DR_WDU)) >> 13); + + /* 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: RTC handle + * @param sTamper: Pointer to Tamper Structure. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_RTCEx_SetTamper(RTC_HandleTypeDef *hrtc, RTC_TamperTypeDef* sTamper) +{ + uint32_t tmpreg = 0; + + /* Check the parameters */ + assert_param( IS_RTC_TAMPER(sTamper->Tamper)); + assert_param( IS_RTC_TAMPER_TRIGGER(sTamper->Trigger)); + assert_param(IS_RTC_TAMPER_ERASE_MODE(sTamper->NoErase)); + assert_param(IS_RTC_TAMPER_MASKFLAG_STATE(sTamper->MaskFlag)); + 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 << 1); + } + + if(sTamper->NoErase != RTC_TAMPER_ERASE_BACKUP_ENABLE) + { + sTamper->NoErase = 0; + if((sTamper->Tamper & RTC_TAMPER_1) != 0) + { + sTamper->NoErase |= RTC_TAMPCR_TAMP1NOERASE; + } + if((sTamper->Tamper & RTC_TAMPER_2) != 0) + { + sTamper->NoErase |= RTC_TAMPCR_TAMP2NOERASE; + } +#if defined (STM32L083xx) || defined (STM32L082xx) || defined (STM32L081xx) || \ +defined (STM32L073xx) || defined (STM32L072xx) || defined (STM32L071xx) + + if((sTamper->Tamper & RTC_TAMPER_3) != 0) + { + sTamper->NoErase |= RTC_TAMPCR_TAMP3NOERASE; + } + +#endif /* (STM32L083xx) || (STM32L082xx) || (STM32L081xx) || +* (STM32L073xx) || (STM32L072xx) || (STM32L071xx) +*/ + } + + if(sTamper->MaskFlag != RTC_TAMPERMASK_FLAG_DISABLE) + { + sTamper->MaskFlag = 0; + if((sTamper->Tamper & RTC_TAMPER_1) != 0) + { + sTamper->MaskFlag |= RTC_TAMPCR_TAMP1MF; + } + if((sTamper->Tamper & RTC_TAMPER_2) != 0) + { + sTamper->MaskFlag |= RTC_TAMPCR_TAMP2MF; + } +#if defined (STM32L083xx) || defined (STM32L082xx) || defined (STM32L081xx) || \ + defined (STM32L073xx) || defined (STM32L072xx) || defined (STM32L071xx) + + if((sTamper->Tamper & RTC_TAMPER_3) != 0) + { + sTamper->MaskFlag |= RTC_TAMPCR_TAMP3MF; + } +#endif /* (STM32L083xx) || (STM32L082xx) || (STM32L081xx) || +* (STM32L073xx) || (STM32L072xx) || (STM32L071xx) +*/ + } + + /* Configure the RTC_TAMPCR register */ + tmpreg = (uint32_t)((uint32_t)sTamper->Tamper | (uint32_t)sTamper->Trigger | (uint32_t)sTamper->NoErase |\ + (uint32_t)sTamper->MaskFlag | (uint32_t)sTamper->Filter | (uint32_t)sTamper->SamplingFrequency |\ + (uint32_t)sTamper->PrechargeDuration | (uint32_t)sTamper->TamperPullUp | (uint32_t)sTamper->TimeStampOnTamperDetection); + + +#if defined (STM32L063xx) || defined (STM32L062xx) || defined (STM32L061xx) || \ + defined (STM32L053xx) || defined (STM32L052xx) || defined (STM32L051xx) + + hrtc->Instance->TAMPCR &= ((uint32_t)~((uint32_t)sTamper->Tamper | (uint32_t)(sTamper->Tamper << 1) | RTC_TAMPCR_TAMPTS |\ + RTC_TAMPCR_TAMPFREQ | RTC_TAMPCR_TAMPFLT | RTC_TAMPCR_TAMPPRCH |\ + RTC_TAMPCR_TAMPPUDIS | RTC_TAMPCR_TAMPIE | RTC_TAMPCR_TAMP1IE |\ + RTC_TAMPCR_TAMP2IE | RTC_TAMPCR_TAMP1NOERASE | RTC_TAMPCR_TAMP2NOERASE|\ + RTC_TAMPCR_TAMP1MF | RTC_TAMPCR_TAMP2MF)); + +#endif /* (STM32L063xx) || (STM32L062xx) || (STM32L061xx) || + * (STM32L053xx) || (STM32L052xx) || (STM32L051xx) + */ + +#if defined (STM32L083xx) || defined (STM32L082xx) || defined (STM32L081xx) || \ + defined (STM32L073xx) || defined (STM32L072xx) || defined (STM32L071xx) + + hrtc->Instance->TAMPCR &= ((uint32_t)~((uint32_t)sTamper->Tamper | (uint32_t)(sTamper->Tamper << 1) | RTC_TAMPCR_TAMPTS |\ + RTC_TAMPCR_TAMPFREQ | RTC_TAMPCR_TAMPFLT | RTC_TAMPCR_TAMPPRCH |\ + RTC_TAMPCR_TAMPPUDIS | RTC_TAMPCR_TAMPIE | RTC_TAMPCR_TAMP1IE |\ + RTC_TAMPCR_TAMP2IE | RTC_TAMPCR_TAMP3IE | RTC_TAMPCR_TAMP1NOERASE |\ + RTC_TAMPCR_TAMP2NOERASE | RTC_TAMPCR_TAMP3NOERASE | RTC_TAMPCR_TAMP1MF |\ + RTC_TAMPCR_TAMP2MF | RTC_TAMPCR_TAMP3MF)); + +#endif /* (STM32L083xx) || (STM32L082xx) || (STM32L081xx) || + * (STM32L073xx) || (STM32L072xx) || (STM32L071xx) + */ + + hrtc->Instance->TAMPCR |= 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: RTC handle + * @param sTamper: Pointer to RTC Tamper. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_RTCEx_SetTamper_IT(RTC_HandleTypeDef *hrtc, RTC_TamperTypeDef* sTamper) +{ + uint32_t tmpreg = 0; + + /* Check the parameters */ + assert_param( IS_RTC_TAMPER(sTamper->Tamper)); + assert_param(IS_RTC_TAMPER_INTERRUPT(sTamper->Interrupt)); + assert_param( IS_RTC_TAMPER_TRIGGER(sTamper->Trigger)); + assert_param(IS_RTC_TAMPER_ERASE_MODE(sTamper->NoErase)); + assert_param(IS_RTC_TAMPER_MASKFLAG_STATE(sTamper->MaskFlag)); + 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 << 1); + } + + if(sTamper->NoErase != RTC_TAMPER_ERASE_BACKUP_ENABLE) + { + sTamper->NoErase = 0; + if((sTamper->Tamper & RTC_TAMPER_1) != 0) + { + sTamper->NoErase |= RTC_TAMPCR_TAMP1NOERASE; + } + if((sTamper->Tamper & RTC_TAMPER_2) != 0) + { + sTamper->NoErase |= RTC_TAMPCR_TAMP2NOERASE; + } +#if defined (STM32L083xx) || defined (STM32L082xx) || defined (STM32L081xx) || \ +defined (STM32L073xx) || defined (STM32L072xx) || defined (STM32L071xx) + + if((sTamper->Tamper & RTC_TAMPER_3) != 0) + { + sTamper->NoErase |= RTC_TAMPCR_TAMP3NOERASE; + } +#endif /* (STM32L083xx) || (STM32L082xx) || (STM32L081xx) || +* (STM32L073xx) || (STM32L072xx) || (STM32L071xx) +*/ + } + + if(sTamper->MaskFlag != RTC_TAMPERMASK_FLAG_DISABLE) + { + sTamper->MaskFlag = 0; + if((sTamper->Tamper & RTC_TAMPER_1) != 0) + { + sTamper->MaskFlag |= RTC_TAMPCR_TAMP1MF; + } + if((sTamper->Tamper & RTC_TAMPER_2) != 0) + { + sTamper->MaskFlag |= RTC_TAMPCR_TAMP2MF; + } +#if defined (STM32L083xx) || defined (STM32L082xx) || defined (STM32L081xx) || \ +defined (STM32L073xx) || defined (STM32L072xx) || defined (STM32L071xx) + + if((sTamper->Tamper & RTC_TAMPER_3) != 0) + { + sTamper->MaskFlag |= RTC_TAMPCR_TAMP3MF; + } +#endif /* (STM32L083xx) || (STM32L082xx) || (STM32L081xx) || +* (STM32L073xx) || (STM32L072xx) || (STM32L071xx) +*/ + } + + /* Configure the RTC_TAMPCR register */ + tmpreg = (uint32_t)((uint32_t)sTamper->Tamper | (uint32_t)sTamper->Interrupt | (uint32_t)sTamper->Trigger | (uint32_t)sTamper->NoErase |\ + (uint32_t)sTamper->MaskFlag | (uint32_t)sTamper->Filter | (uint32_t)sTamper->SamplingFrequency |\ + (uint32_t)sTamper->PrechargeDuration | (uint32_t)sTamper->TamperPullUp | (uint32_t)sTamper->TimeStampOnTamperDetection); + + +#if defined (STM32L063xx) || defined (STM32L062xx) || defined (STM32L061xx) || \ + defined (STM32L053xx) || defined (STM32L052xx) || defined (STM32L051xx) + + hrtc->Instance->TAMPCR &= (uint32_t)~((uint32_t)sTamper->Tamper | (uint32_t)(sTamper->Tamper << 1) | RTC_TAMPCR_TAMPTS |\ + RTC_TAMPCR_TAMPFREQ | RTC_TAMPCR_TAMPFLT | RTC_TAMPCR_TAMPPRCH |\ + RTC_TAMPCR_TAMPPUDIS | RTC_TAMPCR_TAMPIE | RTC_TAMPCR_TAMP1IE |\ + RTC_TAMPCR_TAMP2IE | RTC_TAMPCR_TAMP1NOERASE | RTC_TAMPCR_TAMP2NOERASE |\ + RTC_TAMPCR_TAMP1MF | RTC_TAMPCR_TAMP2MF); + +#endif /* (STM32L063xx) || (STM32L062xx) || (STM32L061xx) || + * (STM32L053xx) || (STM32L052xx) || (STM32L051xx) + */ +#if defined (STM32L083xx) || defined (STM32L082xx) || defined (STM32L081xx) || \ + defined (STM32L073xx) || defined (STM32L072xx) || defined (STM32L071xx) + + hrtc->Instance->TAMPCR &= (uint32_t)~((uint32_t)sTamper->Tamper | (uint32_t)(sTamper->Tamper << 1) | RTC_TAMPCR_TAMPTS |\ + RTC_TAMPCR_TAMPFREQ | RTC_TAMPCR_TAMPFLT | RTC_TAMPCR_TAMPPRCH |\ + RTC_TAMPCR_TAMPPUDIS | RTC_TAMPCR_TAMPIE | RTC_TAMPCR_TAMP1IE |\ + RTC_TAMPCR_TAMP2IE | RTC_TAMPCR_TAMP3IE | RTC_TAMPCR_TAMP1NOERASE |\ + RTC_TAMPCR_TAMP2NOERASE | RTC_TAMPCR_TAMP3NOERASE | RTC_TAMPCR_TAMP1MF |\ + RTC_TAMPCR_TAMP2MF | RTC_TAMPCR_TAMP3MF); + +#endif /* (STM32L083xx) || (STM32L082xx) || (STM32L081xx) || + * (STM32L073xx) || (STM32L072xx) || (STM32L071xx) + */ + + hrtc->Instance->TAMPCR |= tmpreg; + + /* RTC Tamper Interrupt Configuration: EXTI configuration */ + __HAL_RTC_TAMPER_TIMESTAMP_EXTI_ENABLE_IT(); + + __HAL_RTC_TAMPER_TIMESTAMP_EXTI_ENABLE_RISING_EDGE(); + + hrtc->State = HAL_RTC_STATE_READY; + + /* Process Unlocked */ + __HAL_UNLOCK(hrtc); + + return HAL_OK; +} + +/** + * @brief Deactivates Tamper. + * @param hrtc: RTC handle + * @param Tamper: Selected tamper pin. + * This parameter can be RTC_Tamper_1 and/or RTC_TAMPER_2 for NEMO. + * This parameter can be any combination of RTC_TAMPER_1, RTC_TAMPER_2 and RTC_TAMPER_3 for BIG NEMO. + * @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->TAMPCR &= ((uint32_t)~Tamper); + + if ((Tamper & RTC_TAMPER_1) != 0) + { + /* Disable the Tamper1 interrupt */ + hrtc->Instance->TAMPCR &= ((uint32_t)~(RTC_IT_TAMP | RTC_IT_TAMP1)); + } + if ((Tamper & RTC_TAMPER_2) != 0) + { + /* Disable the Tamper2 interrupt */ + hrtc->Instance->TAMPCR &= ((uint32_t)~(RTC_IT_TAMP | RTC_IT_TAMP2)); + } + +#if defined (STM32L083xx) || defined (STM32L082xx) || defined (STM32L081xx) || \ + defined (STM32L073xx) || defined (STM32L072xx) || defined (STM32L071xx) + + if ((Tamper & RTC_TAMPER_3) != 0) + { + /* Disable the Tamper2 interrupt */ + hrtc->Instance->TAMPCR &= ((uint32_t)~(RTC_IT_TAMP | RTC_IT_TAMP3)); + } + +#endif /* (STM32L083xx) || (STM32L082xx) || (STM32L081xx) || + * (STM32L073xx) || (STM32L072xx) || (STM32L071xx) + */ + + hrtc->State = HAL_RTC_STATE_READY; + + /* Process Unlocked */ + __HAL_UNLOCK(hrtc); + + return HAL_OK; +} + +/** + * @brief This function handles TimeStamp interrupt request. + * @param hrtc: RTC handle + * @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_FLAG(hrtc, RTC_FLAG_TAMP1F)== SET) + { + /* Get the TAMPER Interrupt enable bit and pending bit */ + if((((hrtc->Instance->TAMPCR & RTC_TAMPCR_TAMPIE)) != (uint32_t)RESET) || \ + (((hrtc->Instance->TAMPCR & RTC_TAMPCR_TAMP1IE)) != (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_FLAG(hrtc, RTC_FLAG_TAMP2F)== SET) + { + /* Get the TAMPER Interrupt enable bit and pending bit */ + if((((hrtc->Instance->TAMPCR & RTC_TAMPCR_TAMPIE)) != (uint32_t)RESET) || \ + (((hrtc->Instance->TAMPCR & RTC_TAMPCR_TAMP2IE)) != (uint32_t)RESET)) + { + /* Tamper callback */ + HAL_RTCEx_Tamper2EventCallback(hrtc); + + /* Clear the Tamper interrupt pending bit */ + __HAL_RTC_TAMPER_CLEAR_FLAG(hrtc, RTC_FLAG_TAMP2F); + } + } + +#if defined (STM32L083xx) || defined (STM32L082xx) || defined (STM32L081xx) || \ + defined (STM32L073xx) || defined (STM32L072xx) || defined (STM32L071xx) + + /* Get the status of the Interrupt */ + if(__HAL_RTC_TAMPER_GET_FLAG(hrtc, RTC_FLAG_TAMP3F)== SET) + { + /* Get the TAMPER Interrupt enable bit and pending bit */ + if((((hrtc->Instance->TAMPCR & RTC_TAMPCR_TAMPIE)) != (uint32_t)RESET) || \ + (((hrtc->Instance->TAMPCR & RTC_TAMPCR_TAMP3IE)) != (uint32_t)RESET)) + { + /* Tamper callback */ + HAL_RTCEx_Tamper3EventCallback(hrtc); + + /* Clear the Tamper interrupt pending bit */ + __HAL_RTC_TAMPER_CLEAR_FLAG(hrtc, RTC_FLAG_TAMP3F); + } + } + +#endif /* (STM32L083xx) || (STM32L082xx) || (STM32L081xx) || + * (STM32L073xx) || (STM32L072xx) || (STM32L071xx) + */ + + /* 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: RTC handle + * @retval None + */ +__weak void HAL_RTCEx_TimeStampEventCallback(RTC_HandleTypeDef *hrtc) +{ + /* NOTE : This function Should not be modified, when the callback is needed, + the HAL_RTCEx_TimeStampEventCallback could be implemented in the user file + */ +} + +/** + * @brief Tamper 1 callback. + * @param hrtc: RTC handle + * @retval None + */ +__weak void HAL_RTCEx_Tamper1EventCallback(RTC_HandleTypeDef *hrtc) +{ + /* NOTE : This function Should not be modified, when the callback is needed, + the HAL_RTCEx_Tamper1EventCallback could be implemented in the user file + */ +} + +/** + * @brief Tamper 2 callback. + * @param hrtc: RTC handle + * @retval None + */ +__weak void HAL_RTCEx_Tamper2EventCallback(RTC_HandleTypeDef *hrtc) +{ + /* NOTE : This function Should not be modified, when the callback is needed, + the HAL_RTCEx_Tamper2EventCallback could be implemented in the user file + */ +} + + +#if defined (STM32L083xx) || defined (STM32L082xx) || defined (STM32L081xx) || \ + defined (STM32L073xx) || defined (STM32L072xx) || defined (STM32L071xx) + +/** + * @brief Tamper 3 callback. + * @param hrtc: RTC handle + * @retval None + */ +__weak void HAL_RTCEx_Tamper3EventCallback(RTC_HandleTypeDef *hrtc) +{ + /* NOTE : This function Should not be modified, when the callback is needed, + the HAL_RTCEx_Tamper3EventCallback could be implemented in the user file + */ +} + +#endif /* (STM32L083xx) || (STM32L082xx) || (STM32L081xx) || + * (STM32L073xx) || (STM32L072xx) || (STM32L071xx) + */ + + +/** + * @brief This function handles TimeStamp polling request. + * @param hrtc: RTC handle + * @param Timeout: Timeout duration + * @retval HAL status + */ +HAL_StatusTypeDef HAL_RTCEx_PollForTimeStampEvent(RTC_HandleTypeDef *hrtc, uint32_t Timeout) +{ + uint32_t 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 == 0)||((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: RTC handle + * @param Timeout: Timeout duration + * @retval HAL status + */ +HAL_StatusTypeDef HAL_RTCEx_PollForTamper1Event(RTC_HandleTypeDef *hrtc, uint32_t Timeout) +{ + uint32_t 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 == 0)||((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: RTC handle + * @param Timeout: Timeout duration + * @retval HAL status + */ +HAL_StatusTypeDef HAL_RTCEx_PollForTamper2Event(RTC_HandleTypeDef *hrtc, uint32_t Timeout) +{ + uint32_t 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 == 0)||((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; +} + + +#if defined (STM32L083xx) || defined (STM32L082xx) || defined (STM32L081xx) || \ + defined (STM32L073xx) || defined (STM32L072xx) || defined (STM32L071xx) + +/** + * @brief This function handles Tamper3 Polling. + * @param hrtc: RTC handle + * @param Timeout: Timeout duration + * @retval HAL status + */ +HAL_StatusTypeDef HAL_RTCEx_PollForTamper3Event(RTC_HandleTypeDef *hrtc, uint32_t Timeout) +{ + uint32_t tickstart = HAL_GetTick(); + + /* Get the status of the Interrupt */ + while(__HAL_RTC_TAMPER_GET_FLAG(hrtc,RTC_FLAG_TAMP3F) == RESET) + { + if(Timeout != HAL_MAX_DELAY) + { + if((Timeout == 0) || ((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_TAMP3F); + + /* Change RTC state */ + hrtc->State = HAL_RTC_STATE_READY; + + return HAL_OK; +} +#endif /* (STM32L083xx) || (STM32L082xx) || (STM32L081xx) || + * (STM32L073xx) || (STM32L072xx) || (STM32L071xx) + */ + +/** + * @} + */ + +/** @addtogroup RTCEx_Exported_Functions_Group2 + * @brief RTC Wake-up functions + * +@verbatim + =============================================================================== + ##### RTC Wake-up functions ##### + =============================================================================== + + [..] This section provide functions allowing to configure Wake-up feature + +@endverbatim + * @{ + */ + +/** + * @brief Sets wake up timer. + * @param hrtc: RTC handle + * @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 = 0; + + /* 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); + + __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 Wakeup 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 Wakeup Timer counter */ + hrtc->Instance->WUTR = (uint32_t)WakeUpCounter; + + /* Enable the Wakeup 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: RTC handle + * @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) +{ + uint32_t tickstart = 0; + + /* 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); + + __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; + } + } + + /* Configure the Wakeup Timer counter */ + hrtc->Instance->WUTR = (uint32_t)WakeUpCounter; + + /* Clear the Wakeup 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(); + + __HAL_RTC_WAKEUPTIMER_EXTI_ENABLE_RISING_EDGE(); + + /* Configure the Interrupt in the RTC_CR register */ + __HAL_RTC_WAKEUPTIMER_ENABLE_IT(hrtc,RTC_IT_WUT); + + /* Enable the Wakeup 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: RTC handle + * @retval HAL status + */ +uint32_t HAL_RTCEx_DeactivateWakeUpTimer(RTC_HandleTypeDef *hrtc) +{ + uint32_t tickstart = 0; + + /* 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 Wakeup 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); + + 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: RTC handle + * @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: RTC handle + * @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: RTC handle + * @retval None + */ +__weak void HAL_RTCEx_WakeUpTimerEventCallback(RTC_HandleTypeDef *hrtc) +{ + /* NOTE : This function Should not be modified, when the callback is needed, + the HAL_RTCEx_WakeUpTimerEventCallback could be implemented in the user file + */ +} + + +/** + * @brief This function handles Wake Up Timer Polling. + * @param hrtc: RTC handle + * @param Timeout: Timeout duration + * @retval HAL status + */ +HAL_StatusTypeDef HAL_RTCEx_PollForWakeUpTimerEvent(RTC_HandleTypeDef *hrtc, uint32_t Timeout) +{ + uint32_t tickstart = HAL_GetTick(); + + while(__HAL_RTC_WAKEUPTIMER_GET_FLAG(hrtc, RTC_FLAG_WUTF) == RESET) + { + if(Timeout != HAL_MAX_DELAY) + { + if((Timeout == 0)||((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; +} + +/** + * @} + */ + + +/** @addtogroup RTCEx_Exported_Functions_Group3 + * @brief Extended Peripheral Control functions + * +@verbatim + =============================================================================== + ##### Extended Peripheral Control functions ##### + =============================================================================== + [..] + This subsection provides functions allowing to + (+) Writes a data in a specified RTC Backup data register + (+) Read a data in a specified RTC Backup data register + (+) Sets the Coarse calibration parameters. + (+) Deactivates the Coarse calibration parameters + (+) Sets the Smooth calibration parameters. + (+) Configures the Synchronization Shift Control Settings. + (+) Configures the Calibration Pinout (RTC_CALIB) Selection (1Hz or 512Hz). + (+) Deactivates the Calibration Pinout (RTC_CALIB) Selection (1Hz or 512Hz). + (+) Enables the RTC reference clock detection. + (+) Disable the RTC reference clock detection. + (+) Enables the Bypass Shadow feature. + (+) Disables the Bypass Shadow feature. + +@endverbatim + * @{ + */ + +/** + * @brief Writes a data in a specified RTC Backup data register. + * @param hrtc: RTC handle + * @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 = 0; + + /* Check the parameters */ + assert_param(IS_RTC_BKP(BackupRegister)); + + tmp = (uint32_t)&(hrtc->Instance->BKP0R); + tmp += (BackupRegister * 4); + + /* Write the specified register */ + *(__IO uint32_t *)tmp = (uint32_t)Data; +} + +/** + * @brief Reads data from the specified RTC Backup data Register. + * @param hrtc: RTC handle + * @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 = 0; + + /* Check the parameters */ + assert_param(IS_RTC_BKP(BackupRegister)); + + tmp = (uint32_t)&(hrtc->Instance->BKP0R); + tmp += (BackupRegister * 4); + + /* Read the specified register */ + return (*(__IO uint32_t *)tmp); +} + +/** + * @brief Sets the Smooth calibration parameters. + * @param hrtc: RTC handle + * @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 periode is 32s. + * @arg RTC_SMOOTHCALIB_PERIOD_16SEC: The smooth calibration periode is 16s. + * @arg RTC_SMOOTHCALIB_PERIOD_8SEC: The smooth calibartion periode 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 puls every 2*11 pulses. + * @arg RTC_SMOOTHCALIB_PLUSPULSES_RESET: No RTCCLK pulses are added. + * @param SmoothCalibMinusPulsesValue: 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 + * SmoothCalibMinusPulsesValue mut be equal to 0. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_RTCEx_SetSmoothCalib(RTC_HandleTypeDef* hrtc, uint32_t SmoothCalibPeriod, uint32_t SmoothCalibPlusPulses, uint32_t SmoothCalibMinusPulsesValue) +{ + uint32_t tickstart = 0; + + /* 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(SmoothCalibMinusPulsesValue)); + + /* 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) + { + 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)SmoothCalibMinusPulsesValue); + + /* 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: RTC handle + * @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 = 0; + + /* 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); + + 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: RTC handle + * @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: RTC handle + * @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: RTC handle + * @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: RTC handle + * @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: RTC handle + * @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: RTC handle + * @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; +} + +/** + * @} + */ + +/** @addtogroup RTCEx_Exported_Functions_Group4 + * @brief Extended features functions + * +@verbatim + =============================================================================== + ##### Extended features functions ##### + =============================================================================== + [..] This section provides functions allowing to: + (+) RTC Alram B callback + (+) RTC Poll for Alarm B request + +@endverbatim + * @{ + */ + +/** + * @brief Alarm B callback. + * @param hrtc: RTC handle + * @retval None + */ +__weak void HAL_RTCEx_AlarmBEventCallback(RTC_HandleTypeDef *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: RTC handle + * @param Timeout: Timeout duration + * @retval HAL status + */ +HAL_StatusTypeDef HAL_RTCEx_PollForAlarmBEvent(RTC_HandleTypeDef *hrtc, uint32_t Timeout) +{ + uint32_t tickstart = HAL_GetTick(); + + while(__HAL_RTC_ALARM_GET_FLAG(hrtc, RTC_FLAG_ALRBF) == RESET) + { + if(Timeout != HAL_MAX_DELAY) + { + if((Timeout == 0)||((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****/ + |