|
- /**
- ******************************************************************************
- * @file stm32f4xx_hal_rtc.c
- * @author MCD Application Team
- * @brief RTC HAL module driver.
- * This file provides firmware functions to manage the following
- * functionalities of the Real-Time Clock (RTC) peripheral:
- * + Initialization and de-initialization functions
- * + RTC Calendar (Time and Date) configuration functions
- * + RTC Alarms (Alarm A and Alarm B) configuration functions
- * + Peripheral Control functions
- * + Peripheral State functions
- *
- ******************************************************************************
- * @attention
- *
- * Copyright (c) 2017 STMicroelectronics.
- * All rights reserved.
- *
- * This software is licensed under terms that can be found in the LICENSE file
- * in the root directory of this software component.
- * If no LICENSE file comes with this software, it is provided AS-IS.
- *
- ******************************************************************************
- @verbatim
- ==============================================================================
- ##### RTC and Backup Domain Operating Condition #####
- ==============================================================================
- [..] The real-time clock (RTC), the RTC backup registers, and the backup
- SRAM (BKP SRAM) can be powered from the VBAT voltage when the main
- VDD supply is powered off.
- To retain the content of the RTC backup registers, BKP SRAM, and supply
- the RTC when VDD is turned off, VBAT pin can be connected to an optional
- standby voltage supplied by a battery or by another source.
-
- [..] To allow the RTC operating even when the main digital supply (VDD) is turned
- off, the VBAT pin powers the following blocks:
- (#) The RTC
- (#) The LSE oscillator
- (#) The BKP SRAM when the low power backup regulator is enabled
- (#) PC13 to PC15 I/Os, plus PI8 I/O (when available)
-
- [..] When the backup domain is supplied by VDD (analog switch connected to VDD),
- the following pins are available:
- (#) PC14 and PC15 can be used as either GPIO or LSE pins
- (#) PC13 can be used as a GPIO or as the RTC_AF1 pin
- (#) PI8 can be used as a GPIO or as the RTC_AF2 pin
-
- [..] When the backup domain is supplied by VBAT (analog switch connected to VBAT
- because VDD is not present), the following pins are available:
- (#) PC14 and PC15 can be used as LSE pins only
- (#) PC13 can be used as the RTC_AF1 pin
- (#) PI8 can be used as the RTC_AF2 pin
-
- ##### Backup Domain Reset #####
- ==================================================================
- [..] The backup domain reset sets all RTC registers and the RCC_BDCR register
- to their reset values.
- The BKP SRAM is not affected by this reset. The only way to reset the BKP
- SRAM is through the Flash interface by requesting a protection level
- change from 1 to 0.
- [..] A backup domain reset is generated when one of the following events occurs:
- (#) Software reset, triggered by setting the BDRST bit in the
- RCC Backup domain control register (RCC_BDCR).
- (#) VDD or VBAT power on, if both supplies have previously been powered off.
-
- ##### Backup Domain Access #####
- ==================================================================
- [..] After reset, the backup domain (RTC registers, RTC backup data registers
- and BKP SRAM) 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() macro.
- (+) Enable access to RTC domain using the HAL_PWR_EnableBkUpAccess() function.
- (+) Select the RTC clock source using the __HAL_RCC_RTC_CONFIG() macro.
- (+) Enable RTC Clock using the __HAL_RCC_RTC_ENABLE() macro.
-
- ==============================================================================
- ##### How to use this driver #####
- ==============================================================================
- [..]
- (+) Enable the RTC domain access (see description in the section above).
- (+) 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.
- (+) To manage the RTC summer or winter time change, use the following
- functions:
- (++) HAL_RTC_DST_Add1Hour() or HAL_RTC_DST_Sub1Hour to add or subtract
- 1 hour from the calendar time.
- (++) HAL_RTC_DST_SetStoreOperation() or HAL_RTC_DST_ClearStoreOperation
- to memorize whether the time change has been performed or not.
-
- *** 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 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 timestamp 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.
-
- *** Callback registration ***
- =============================================
- [..]
- The compilation define USE_HAL_RTC_REGISTER_CALLBACKS when set to 1
- allows the user to configure dynamically the driver callbacks.
- Use Function HAL_RTC_RegisterCallback() to register an interrupt callback.
- [..]
- Function HAL_RTC_RegisterCallback() allows to register following callbacks:
- (+) AlarmAEventCallback : RTC Alarm A Event callback.
- (+) AlarmBEventCallback : RTC Alarm B Event callback.
- (+) TimeStampEventCallback : RTC Timestamp Event callback.
- (+) WakeUpTimerEventCallback : RTC WakeUpTimer Event callback.
- (+) Tamper1EventCallback : RTC Tamper 1 Event callback.
- (+) Tamper2EventCallback : RTC Tamper 2 Event callback.
- (+) MspInitCallback : RTC MspInit callback.
- (+) MspDeInitCallback : RTC MspDeInit callback.
- [..]
- This function takes as parameters the HAL peripheral handle, the Callback ID
- and a pointer to the user callback function.
- [..]
- Use function HAL_RTC_UnRegisterCallback() to reset a callback to the default
- weak function.
- HAL_RTC_UnRegisterCallback() takes as parameters the HAL peripheral handle,
- and the Callback ID.
- This function allows to reset following callbacks:
- (+) AlarmAEventCallback : RTC Alarm A Event callback.
- (+) AlarmBEventCallback : RTC Alarm B Event callback.
- (+) TimeStampEventCallback : RTC Timestamp Event callback.
- (+) WakeUpTimerEventCallback : RTC WakeUpTimer Event callback.
- (+) Tamper1EventCallback : RTC Tamper 1 Event callback.
- (+) Tamper2EventCallback : RTC Tamper 2 Event callback.
- (+) MspInitCallback : RTC MspInit callback.
- (+) MspDeInitCallback : RTC MspDeInit callback.
- [..]
- By default, after the HAL_RTC_Init() and when the state is HAL_RTC_STATE_RESET,
- all callbacks are set to the corresponding weak functions:
- examples AlarmAEventCallback(), WakeUpTimerEventCallback().
- Exception done for MspInit() and MspDeInit() callbacks that are reset to the
- legacy weak function in the HAL_RTC_Init()/HAL_RTC_DeInit() only
- when these callbacks are null (not registered beforehand).
- If not, MspInit() or MspDeInit() are not null, HAL_RTC_Init()/HAL_RTC_DeInit()
- keep and use the user MspInit()/MspDeInit() callbacks (registered beforehand).
- [..]
- Callbacks can be registered/unregistered in HAL_RTC_STATE_READY state only.
- Exception done MspInit()/MspDeInit() that can be registered/unregistered
- in HAL_RTC_STATE_READY or HAL_RTC_STATE_RESET state.
- Thus registered (user) MspInit()/MspDeInit() callbacks can be used during the
- Init/DeInit.
- In that case first register the MspInit()/MspDeInit() user callbacks
- using HAL_RTC_RegisterCallback() before calling HAL_RTC_DeInit()
- or HAL_RTC_Init() functions.
- [..]
- When The compilation define USE_HAL_RTC_REGISTER_CALLBACKS is set to 0 or
- not defined, the callback registration feature is not available and all
- callbacks are set to the corresponding weak functions.
-
- @endverbatim
- ******************************************************************************
- */
-
- /* Includes ------------------------------------------------------------------*/
- #include "stm32f4xx_hal.h"
-
- /** @addtogroup STM32F4xx_HAL_Driver
- * @{
- */
-
- /** @defgroup RTC RTC
- * @brief RTC HAL module driver
- * @{
- */
-
- #ifdef HAL_RTC_MODULE_ENABLED
-
- /* Private typedef -----------------------------------------------------------*/
- /* Private define ------------------------------------------------------------*/
- /* Private macro -------------------------------------------------------------*/
- /* Private variables ---------------------------------------------------------*/
- /* Private function prototypes -----------------------------------------------*/
- /* Exported functions --------------------------------------------------------*/
-
- /** @defgroup RTC_Exported_Functions RTC Exported Functions
- * @{
- */
-
- /** @defgroup RTC_Exported_Functions_Group1 Initialization and de-initialization functions
- * @brief Initialization and Configuration functions
- *
- @verbatim
- ===============================================================================
- ##### Initialization and de-initialization functions #####
- ===============================================================================
- [..] This section provides functions allowing to initialize and configure the
- RTC Prescaler (Synchronous and Asynchronous), RTC Hour format, disable
- RTC registers Write protection, enter and exit the RTC initialization mode,
- RTC registers synchronization check and reference clock detection enable.
- (#) The RTC Prescaler is programmed to generate the RTC 1Hz time base.
- It is split into 2 programmable prescalers to minimize power consumption.
- (++) A 7-bit asynchronous prescaler and a 15-bit synchronous prescaler.
- (++) When both prescalers are used, it is recommended to configure the
- asynchronous prescaler to a high value to minimize power consumption.
- (#) All RTC registers are Write protected. Writing to the RTC registers
- is enabled by writing a key into the Write Protection register, RTC_WPR.
- (#) To configure the RTC Calendar, user application should enter
- initialization mode. In this mode, the calendar counter is stopped
- and its value can be updated. When the initialization sequence is
- complete, the calendar restarts counting after 4 RTCCLK cycles.
- (#) To read the calendar through the shadow registers after Calendar
- initialization, calendar update or after wakeup from low power modes
- the software must first clear the RSF flag. The software must then
- wait until it is set again before reading the calendar, which means
- that the calendar registers have been correctly copied into the
- RTC_TR and RTC_DR shadow registers. The HAL_RTC_WaitForSynchro() function
- implements the above software sequence (RSF clear and RSF check).
-
- @endverbatim
- * @{
- */
-
- /**
- * @brief Initializes the RTC peripheral
- * @param hrtc pointer to a RTC_HandleTypeDef structure that contains
- * the configuration information for RTC.
- * @retval HAL status
- */
- HAL_StatusTypeDef HAL_RTC_Init(RTC_HandleTypeDef *hrtc)
- {
- HAL_StatusTypeDef status = HAL_ERROR;
-
- /* Check RTC handler validity */
- if (hrtc == NULL)
- {
- return HAL_ERROR;
- }
-
- /* Check the parameters */
- assert_param(IS_RTC_ALL_INSTANCE(hrtc->Instance));
- assert_param(IS_RTC_HOUR_FORMAT(hrtc->Init.HourFormat));
- assert_param(IS_RTC_ASYNCH_PREDIV(hrtc->Init.AsynchPrediv));
- assert_param(IS_RTC_SYNCH_PREDIV(hrtc->Init.SynchPrediv));
- assert_param(IS_RTC_OUTPUT(hrtc->Init.OutPut));
- assert_param(IS_RTC_OUTPUT_POL(hrtc->Init.OutPutPolarity));
- assert_param(IS_RTC_OUTPUT_TYPE(hrtc->Init.OutPutType));
-
- #if (USE_HAL_RTC_REGISTER_CALLBACKS == 1)
- if (hrtc->State == HAL_RTC_STATE_RESET)
- {
- /* Allocate lock resource and initialize it */
- hrtc->Lock = HAL_UNLOCKED;
-
- hrtc->AlarmAEventCallback = HAL_RTC_AlarmAEventCallback; /* Legacy weak AlarmAEventCallback */
- hrtc->AlarmBEventCallback = HAL_RTCEx_AlarmBEventCallback; /* Legacy weak AlarmBEventCallback */
- hrtc->TimeStampEventCallback = HAL_RTCEx_TimeStampEventCallback; /* Legacy weak TimeStampEventCallback */
- hrtc->WakeUpTimerEventCallback = HAL_RTCEx_WakeUpTimerEventCallback; /* Legacy weak WakeUpTimerEventCallback */
- hrtc->Tamper1EventCallback = HAL_RTCEx_Tamper1EventCallback; /* Legacy weak Tamper1EventCallback */
- #if defined(RTC_TAMPER2_SUPPORT)
- hrtc->Tamper2EventCallback = HAL_RTCEx_Tamper2EventCallback; /* Legacy weak Tamper2EventCallback */
- #endif /* RTC_TAMPER2_SUPPORT */
-
- if (hrtc->MspInitCallback == NULL)
- {
- hrtc->MspInitCallback = HAL_RTC_MspInit;
- }
- /* Init the low level hardware */
- hrtc->MspInitCallback(hrtc);
-
- if (hrtc->MspDeInitCallback == NULL)
- {
- hrtc->MspDeInitCallback = HAL_RTC_MspDeInit;
- }
- }
- #else /* USE_HAL_RTC_REGISTER_CALLBACKS */
- if (hrtc->State == HAL_RTC_STATE_RESET)
- {
- /* Allocate lock resource and initialize it */
- hrtc->Lock = HAL_UNLOCKED;
-
- /* Initialize RTC MSP */
- HAL_RTC_MspInit(hrtc);
- }
- #endif /* USE_HAL_RTC_REGISTER_CALLBACKS */
-
- /* Set RTC state */
- hrtc->State = HAL_RTC_STATE_BUSY;
-
- /* Disable the write protection for RTC registers */
- __HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
-
- /* Enter Initialization mode */
- status = RTC_EnterInitMode(hrtc);
-
- if (status == HAL_OK)
- {
- /* Clear RTC_CR FMT, OSEL and POL Bits */
- hrtc->Instance->CR &= ((uint32_t)~(RTC_CR_FMT | RTC_CR_OSEL | RTC_CR_POL));
- /* Set RTC_CR register */
- hrtc->Instance->CR |= (uint32_t)(hrtc->Init.HourFormat | hrtc->Init.OutPut | hrtc->Init.OutPutPolarity);
-
- /* Configure the RTC PRER */
- hrtc->Instance->PRER = (uint32_t)(hrtc->Init.SynchPrediv);
- hrtc->Instance->PRER |= (uint32_t)(hrtc->Init.AsynchPrediv << RTC_PRER_PREDIV_A_Pos);
-
- /* Exit Initialization mode */
- status = RTC_ExitInitMode(hrtc);
- }
-
- if (status == HAL_OK)
- {
- hrtc->Instance->TAFCR &= (uint32_t)~RTC_OUTPUT_TYPE_PUSHPULL;
- hrtc->Instance->TAFCR |= (uint32_t)(hrtc->Init.OutPutType);
-
- hrtc->State = HAL_RTC_STATE_READY;
- }
-
- /* Enable the write protection for RTC registers */
- __HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
-
- return status;
- }
-
- /**
- * @brief DeInitializes the RTC peripheral
- * @param hrtc pointer to a RTC_HandleTypeDef structure that contains
- * the configuration information for RTC.
- * @note This function does not reset the RTC Backup Data registers.
- * @retval HAL status
- */
- HAL_StatusTypeDef HAL_RTC_DeInit(RTC_HandleTypeDef *hrtc)
- {
- HAL_StatusTypeDef status = HAL_ERROR;
-
- /* Check the parameters */
- assert_param(IS_RTC_ALL_INSTANCE(hrtc->Instance));
-
- /* Set RTC state */
- hrtc->State = HAL_RTC_STATE_BUSY;
-
- /* Disable the write protection for RTC registers */
- __HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
-
- /* Enter Initialization mode */
- status = RTC_EnterInitMode(hrtc);
-
- if (status == HAL_OK)
- {
- /* Reset RTC registers */
- hrtc->Instance->TR = 0x00000000U;
- hrtc->Instance->DR = (RTC_DR_WDU_0 | RTC_DR_MU_0 | RTC_DR_DU_0);
- hrtc->Instance->CR &= 0x00000000U;
- hrtc->Instance->WUTR = RTC_WUTR_WUT;
- hrtc->Instance->PRER = (uint32_t)(RTC_PRER_PREDIV_A | 0x000000FFU);
- hrtc->Instance->CALIBR = 0x00000000U;
- hrtc->Instance->ALRMAR = 0x00000000U;
- hrtc->Instance->ALRMBR = 0x00000000U;
- hrtc->Instance->CALR = 0x00000000U;
- hrtc->Instance->SHIFTR = 0x00000000U;
- hrtc->Instance->ALRMASSR = 0x00000000U;
- hrtc->Instance->ALRMBSSR = 0x00000000U;
-
- /* Exit Initialization mode */
- status = RTC_ExitInitMode(hrtc);
- }
-
- /* Enable the write protection for RTC registers */
- __HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
-
- if (status == HAL_OK)
- {
- /* Reset Tamper and alternate functions configuration register */
- hrtc->Instance->TAFCR = 0x00000000U;
-
- #if (USE_HAL_RTC_REGISTER_CALLBACKS == 1)
- if (hrtc->MspDeInitCallback == NULL)
- {
- hrtc->MspDeInitCallback = HAL_RTC_MspDeInit;
- }
-
- /* DeInit the low level hardware: CLOCK, NVIC.*/
- hrtc->MspDeInitCallback(hrtc);
- #else /* USE_HAL_RTC_REGISTER_CALLBACKS */
- /* De-Initialize RTC MSP */
- HAL_RTC_MspDeInit(hrtc);
- #endif /* USE_HAL_RTC_REGISTER_CALLBACKS */
-
- hrtc->State = HAL_RTC_STATE_RESET;
- }
-
- /* Release Lock */
- __HAL_UNLOCK(hrtc);
-
- return status;
- }
-
- #if (USE_HAL_RTC_REGISTER_CALLBACKS == 1)
- /**
- * @brief Registers a User RTC Callback
- * To be used instead of the weak predefined callback
- * @param hrtc pointer to a RTC_HandleTypeDef structure that contains
- * the configuration information for RTC.
- * @param CallbackID ID of the callback to be registered
- * This parameter can be one of the following values:
- * @arg @ref HAL_RTC_ALARM_A_EVENT_CB_ID Alarm A Event Callback ID
- * @arg @ref HAL_RTC_ALARM_B_EVENT_CB_ID Alarm B Event Callback ID
- * @arg @ref HAL_RTC_TIMESTAMP_EVENT_CB_ID Timestamp Event Callback ID
- * @arg @ref HAL_RTC_WAKEUPTIMER_EVENT_CB_ID Wakeup Timer Event Callback ID
- * @arg @ref HAL_RTC_TAMPER1_EVENT_CB_ID Tamper 1 Callback ID
- * @arg @ref HAL_RTC_TAMPER2_EVENT_CB_ID Tamper 2 Callback ID
- * @arg @ref HAL_RTC_MSPINIT_CB_ID Msp Init callback ID
- * @arg @ref HAL_RTC_MSPDEINIT_CB_ID Msp DeInit callback ID
- * @note HAL_RTC_TAMPER2_EVENT_CB_ID is not applicable to all devices.
- * @param pCallback pointer to the Callback function
- * @retval HAL status
- */
- HAL_StatusTypeDef HAL_RTC_RegisterCallback(RTC_HandleTypeDef *hrtc, HAL_RTC_CallbackIDTypeDef CallbackID, pRTC_CallbackTypeDef pCallback)
- {
- HAL_StatusTypeDef status = HAL_OK;
-
- if (pCallback == NULL)
- {
- return HAL_ERROR;
- }
-
- /* Process locked */
- __HAL_LOCK(hrtc);
-
- if (HAL_RTC_STATE_READY == hrtc->State)
- {
- switch (CallbackID)
- {
- case HAL_RTC_ALARM_A_EVENT_CB_ID :
- hrtc->AlarmAEventCallback = pCallback;
- break;
-
- case HAL_RTC_ALARM_B_EVENT_CB_ID :
- hrtc->AlarmBEventCallback = pCallback;
- break;
-
- case HAL_RTC_TIMESTAMP_EVENT_CB_ID :
- hrtc->TimeStampEventCallback = pCallback;
- break;
-
- case HAL_RTC_WAKEUPTIMER_EVENT_CB_ID :
- hrtc->WakeUpTimerEventCallback = pCallback;
- break;
-
- case HAL_RTC_TAMPER1_EVENT_CB_ID :
- hrtc->Tamper1EventCallback = pCallback;
- break;
-
- #if defined(RTC_TAMPER2_SUPPORT)
- case HAL_RTC_TAMPER2_EVENT_CB_ID :
- hrtc->Tamper2EventCallback = pCallback;
- break;
- #endif /* RTC_TAMPER2_SUPPORT */
-
- case HAL_RTC_MSPINIT_CB_ID :
- hrtc->MspInitCallback = pCallback;
- break;
-
- case HAL_RTC_MSPDEINIT_CB_ID :
- hrtc->MspDeInitCallback = pCallback;
- break;
-
- default :
- /* Return error status */
- status = HAL_ERROR;
- break;
- }
- }
- else if (HAL_RTC_STATE_RESET == hrtc->State)
- {
- switch (CallbackID)
- {
- case HAL_RTC_MSPINIT_CB_ID :
- hrtc->MspInitCallback = pCallback;
- break;
-
- case HAL_RTC_MSPDEINIT_CB_ID :
- hrtc->MspDeInitCallback = pCallback;
- break;
-
- default :
- /* Return error status */
- status = HAL_ERROR;
- break;
- }
- }
- else
- {
- /* Return error status */
- status = HAL_ERROR;
- }
-
- /* Release Lock */
- __HAL_UNLOCK(hrtc);
-
- return status;
- }
-
- /**
- * @brief Unregisters an RTC Callback
- * RTC callabck is redirected to the weak predefined callback
- * @param hrtc pointer to a RTC_HandleTypeDef structure that contains
- * the configuration information for RTC.
- * @param CallbackID ID of the callback to be unregistered
- * This parameter can be one of the following values:
- * @arg @ref HAL_RTC_ALARM_A_EVENT_CB_ID Alarm A Event Callback ID
- * @arg @ref HAL_RTC_ALARM_B_EVENT_CB_ID Alarm B Event Callback ID
- * @arg @ref HAL_RTC_TIMESTAMP_EVENT_CB_ID Timestamp Event Callback ID
- * @arg @ref HAL_RTC_WAKEUPTIMER_EVENT_CB_ID Wakeup Timer Event Callback ID
- * @arg @ref HAL_RTC_TAMPER1_EVENT_CB_ID Tamper 1 Callback ID
- * @arg @ref HAL_RTC_TAMPER2_EVENT_CB_ID Tamper 2 Callback ID
- * @arg @ref HAL_RTC_MSPINIT_CB_ID Msp Init callback ID
- * @arg @ref HAL_RTC_MSPDEINIT_CB_ID Msp DeInit callback ID
- * @note HAL_RTC_TAMPER2_EVENT_CB_ID is not applicable to all devices.
- * @retval HAL status
- */
- HAL_StatusTypeDef HAL_RTC_UnRegisterCallback(RTC_HandleTypeDef *hrtc, HAL_RTC_CallbackIDTypeDef CallbackID)
- {
- HAL_StatusTypeDef status = HAL_OK;
-
- /* Process locked */
- __HAL_LOCK(hrtc);
-
- if (HAL_RTC_STATE_READY == hrtc->State)
- {
- switch (CallbackID)
- {
- case HAL_RTC_ALARM_A_EVENT_CB_ID :
- hrtc->AlarmAEventCallback = HAL_RTC_AlarmAEventCallback; /* Legacy weak AlarmAEventCallback */
- break;
-
- case HAL_RTC_ALARM_B_EVENT_CB_ID :
- hrtc->AlarmBEventCallback = HAL_RTCEx_AlarmBEventCallback; /* Legacy weak AlarmBEventCallback */
- break;
-
- case HAL_RTC_TIMESTAMP_EVENT_CB_ID :
- hrtc->TimeStampEventCallback = HAL_RTCEx_TimeStampEventCallback; /* Legacy weak TimeStampEventCallback */
- break;
-
- case HAL_RTC_WAKEUPTIMER_EVENT_CB_ID :
- hrtc->WakeUpTimerEventCallback = HAL_RTCEx_WakeUpTimerEventCallback; /* Legacy weak WakeUpTimerEventCallback */
- break;
-
- case HAL_RTC_TAMPER1_EVENT_CB_ID :
- hrtc->Tamper1EventCallback = HAL_RTCEx_Tamper1EventCallback; /* Legacy weak Tamper1EventCallback */
- break;
-
- #if defined(RTC_TAMPER2_SUPPORT)
- case HAL_RTC_TAMPER2_EVENT_CB_ID :
- hrtc->Tamper2EventCallback = HAL_RTCEx_Tamper2EventCallback; /* Legacy weak Tamper2EventCallback */
- break;
- #endif /* RTC_TAMPER2_SUPPORT */
-
- case HAL_RTC_MSPINIT_CB_ID :
- hrtc->MspInitCallback = HAL_RTC_MspInit;
- break;
-
- case HAL_RTC_MSPDEINIT_CB_ID :
- hrtc->MspDeInitCallback = HAL_RTC_MspDeInit;
- break;
-
- default :
- /* Return error status */
- status = HAL_ERROR;
- break;
- }
- }
- else if (HAL_RTC_STATE_RESET == hrtc->State)
- {
- switch (CallbackID)
- {
- case HAL_RTC_MSPINIT_CB_ID :
- hrtc->MspInitCallback = HAL_RTC_MspInit;
- break;
-
- case HAL_RTC_MSPDEINIT_CB_ID :
- hrtc->MspDeInitCallback = HAL_RTC_MspDeInit;
- break;
-
- default :
- /* Return error status */
- status = HAL_ERROR;
- break;
- }
- }
- else
- {
- /* Return error status */
- status = HAL_ERROR;
- }
-
- /* Release Lock */
- __HAL_UNLOCK(hrtc);
-
- return status;
- }
- #endif /* USE_HAL_RTC_REGISTER_CALLBACKS */
-
- /**
- * @brief Initializes the RTC MSP.
- * @param hrtc pointer to a RTC_HandleTypeDef structure that contains
- * the configuration information for RTC.
- * @retval None
- */
- __weak void HAL_RTC_MspInit(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_MspInit could be implemented in the user file
- */
- }
-
- /**
- * @brief DeInitializes the RTC MSP.
- * @param hrtc pointer to a RTC_HandleTypeDef structure that contains
- * the configuration information for RTC.
- * @retval None
- */
- __weak void HAL_RTC_MspDeInit(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_MspDeInit could be implemented in the user file
- */
- }
-
- /**
- * @}
- */
-
- /** @defgroup RTC_Exported_Functions_Group2 RTC Time and Date functions
- * @brief RTC Time and Date functions
- *
- @verbatim
- ===============================================================================
- ##### RTC Time and Date functions #####
- ===============================================================================
-
- [..] This section provides functions allowing to configure Time and Date features
-
- @endverbatim
- * @{
- */
-
- /**
- * @brief Sets RTC current time.
- * @param hrtc pointer to a RTC_HandleTypeDef structure that contains
- * the configuration information for RTC.
- * @param sTime Pointer to Time structure
- * @note DayLightSaving and StoreOperation interfaces are deprecated.
- * To manage Daylight Saving Time, please use HAL_RTC_DST_xxx functions.
- * @param Format Specifies the format of the entered parameters.
- * This parameter can be one of the following values:
- * @arg RTC_FORMAT_BIN: Binary data format
- * @arg RTC_FORMAT_BCD: BCD data format
- * @retval HAL status
- */
- HAL_StatusTypeDef HAL_RTC_SetTime(RTC_HandleTypeDef *hrtc, RTC_TimeTypeDef *sTime, uint32_t Format)
- {
- uint32_t tmpreg = 0U;
- HAL_StatusTypeDef status;
-
- /* Check the parameters */
- assert_param(IS_RTC_FORMAT(Format));
- assert_param(IS_RTC_DAYLIGHT_SAVING(sTime->DayLightSaving));
- assert_param(IS_RTC_STORE_OPERATION(sTime->StoreOperation));
-
- /* Process Locked */
- __HAL_LOCK(hrtc);
-
- hrtc->State = HAL_RTC_STATE_BUSY;
-
- if (Format == RTC_FORMAT_BIN)
- {
- if ((hrtc->Instance->CR & RTC_CR_FMT) != 0U)
- {
- assert_param(IS_RTC_HOUR12(sTime->Hours));
- assert_param(IS_RTC_HOURFORMAT12(sTime->TimeFormat));
- }
- else
- {
- sTime->TimeFormat = 0x00U;
- assert_param(IS_RTC_HOUR24(sTime->Hours));
- }
- assert_param(IS_RTC_MINUTES(sTime->Minutes));
- assert_param(IS_RTC_SECONDS(sTime->Seconds));
-
- tmpreg = (uint32_t)(( (uint32_t)RTC_ByteToBcd2(sTime->Hours) << RTC_TR_HU_Pos) | \
- ( (uint32_t)RTC_ByteToBcd2(sTime->Minutes) << RTC_TR_MNU_Pos) | \
- ( (uint32_t)RTC_ByteToBcd2(sTime->Seconds)) | \
- (((uint32_t)sTime->TimeFormat) << RTC_TR_PM_Pos));
- }
- else
- {
- if ((hrtc->Instance->CR & RTC_CR_FMT) != 0U)
- {
- assert_param(IS_RTC_HOUR12(RTC_Bcd2ToByte(sTime->Hours)));
- assert_param(IS_RTC_HOURFORMAT12(sTime->TimeFormat));
- }
- else
- {
- sTime->TimeFormat = 0x00U;
- assert_param(IS_RTC_HOUR24(RTC_Bcd2ToByte(sTime->Hours)));
- }
- assert_param(IS_RTC_MINUTES(RTC_Bcd2ToByte(sTime->Minutes)));
- assert_param(IS_RTC_SECONDS(RTC_Bcd2ToByte(sTime->Seconds)));
- tmpreg = (((uint32_t)(sTime->Hours) << RTC_TR_HU_Pos) | \
- ((uint32_t)(sTime->Minutes) << RTC_TR_MNU_Pos) | \
- ((uint32_t) sTime->Seconds) | \
- ((uint32_t)(sTime->TimeFormat) << RTC_TR_PM_Pos));
- }
-
- /* Disable the write protection for RTC registers */
- __HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
-
- /* Enter Initialization mode */
- status = RTC_EnterInitMode(hrtc);
-
- if (status == HAL_OK)
- {
- /* Set the RTC_TR register */
- hrtc->Instance->TR = (uint32_t)(tmpreg & RTC_TR_RESERVED_MASK);
-
- /* Clear the bits to be configured (Deprecated. Use HAL_RTC_DST_xxx functions instead) */
- hrtc->Instance->CR &= (uint32_t)~RTC_CR_BKP;
-
- /* Configure the RTC_CR register (Deprecated. Use HAL_RTC_DST_xxx functions instead) */
- hrtc->Instance->CR |= (uint32_t)(sTime->DayLightSaving | sTime->StoreOperation);
-
- /* Exit Initialization mode */
- status = RTC_ExitInitMode(hrtc);
- }
-
- if (status == HAL_OK)
- {
- hrtc->State = HAL_RTC_STATE_READY;
- }
-
- /* Enable the write protection for RTC registers */
- __HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
-
- /* Process Unlocked */
- __HAL_UNLOCK(hrtc);
-
- return status;
- }
-
- /**
- * @brief Gets RTC current time.
- * @param hrtc pointer to a RTC_HandleTypeDef structure that contains
- * the configuration information for RTC.
- * @param sTime Pointer to Time structure
- * @param Format Specifies the format of the entered parameters.
- * This parameter can be one of the following values:
- * @arg RTC_FORMAT_BIN: Binary data format
- * @arg RTC_FORMAT_BCD: BCD data format
- * @note You can use SubSeconds and SecondFraction (sTime structure fields
- * returned) to convert SubSeconds value in second fraction ratio with
- * time unit following generic formula:
- * Second fraction ratio * time_unit =
- * [(SecondFraction - SubSeconds) / (SecondFraction + 1)] * time_unit
- * This conversion can be performed only if no shift operation is pending
- * (ie. SHFP=0) when PREDIV_S >= SS
- * @note You must call HAL_RTC_GetDate() after HAL_RTC_GetTime() to unlock the
- * values in the higher-order calendar shadow registers to ensure
- * consistency between the time and date values.
- * Reading RTC current time locks the values in calendar shadow registers
- * until current date is read to ensure consistency between the time and
- * date values.
- * @retval HAL status
- */
- HAL_StatusTypeDef HAL_RTC_GetTime(RTC_HandleTypeDef *hrtc, RTC_TimeTypeDef *sTime, uint32_t Format)
- {
- uint32_t tmpreg = 0U;
-
- /* Check the parameters */
- assert_param(IS_RTC_FORMAT(Format));
-
- /* Get subseconds value from the corresponding register */
- sTime->SubSeconds = (uint32_t)(hrtc->Instance->SSR);
-
- /* Get SecondFraction structure field from the corresponding register field*/
- sTime->SecondFraction = (uint32_t)(hrtc->Instance->PRER & RTC_PRER_PREDIV_S);
-
- /* Get the TR register */
- tmpreg = (uint32_t)(hrtc->Instance->TR & RTC_TR_RESERVED_MASK);
-
- /* Fill the structure fields with the read parameters */
- sTime->Hours = (uint8_t)((tmpreg & (RTC_TR_HT | RTC_TR_HU)) >> RTC_TR_HU_Pos);
- sTime->Minutes = (uint8_t)((tmpreg & (RTC_TR_MNT | RTC_TR_MNU)) >> RTC_TR_MNU_Pos);
- sTime->Seconds = (uint8_t)( tmpreg & (RTC_TR_ST | RTC_TR_SU));
- sTime->TimeFormat = (uint8_t)((tmpreg & (RTC_TR_PM)) >> RTC_TR_PM_Pos);
-
- /* Check the input parameters format */
- if (Format == RTC_FORMAT_BIN)
- {
- /* Convert the time structure parameters to Binary format */
- sTime->Hours = (uint8_t)RTC_Bcd2ToByte(sTime->Hours);
- sTime->Minutes = (uint8_t)RTC_Bcd2ToByte(sTime->Minutes);
- sTime->Seconds = (uint8_t)RTC_Bcd2ToByte(sTime->Seconds);
- }
-
- return HAL_OK;
- }
-
- /**
- * @brief Sets RTC current date.
- * @param hrtc pointer to a RTC_HandleTypeDef structure that contains
- * the configuration information for RTC.
- * @param sDate Pointer to date structure
- * @param Format specifies the format of the entered parameters.
- * This parameter can be one of the following values:
- * @arg RTC_FORMAT_BIN: Binary data format
- * @arg RTC_FORMAT_BCD: BCD data format
- * @retval HAL status
- */
- HAL_StatusTypeDef HAL_RTC_SetDate(RTC_HandleTypeDef *hrtc, RTC_DateTypeDef *sDate, uint32_t Format)
- {
- uint32_t datetmpreg = 0U;
- HAL_StatusTypeDef status;
-
- /* Check the parameters */
- assert_param(IS_RTC_FORMAT(Format));
-
- /* Process Locked */
- __HAL_LOCK(hrtc);
-
- hrtc->State = HAL_RTC_STATE_BUSY;
-
- if ((Format == RTC_FORMAT_BIN) && ((sDate->Month & 0x10U) == 0x10U))
- {
- sDate->Month = (uint8_t)((sDate->Month & (uint8_t)~(0x10U)) + (uint8_t)0x0AU);
- }
-
- assert_param(IS_RTC_WEEKDAY(sDate->WeekDay));
-
- if (Format == RTC_FORMAT_BIN)
- {
- assert_param(IS_RTC_YEAR(sDate->Year));
- assert_param(IS_RTC_MONTH(sDate->Month));
- assert_param(IS_RTC_DATE(sDate->Date));
-
- datetmpreg = (((uint32_t)RTC_ByteToBcd2(sDate->Year) << RTC_DR_YU_Pos) | \
- ((uint32_t)RTC_ByteToBcd2(sDate->Month) << RTC_DR_MU_Pos) | \
- ((uint32_t)RTC_ByteToBcd2(sDate->Date)) | \
- ((uint32_t)sDate->WeekDay << RTC_DR_WDU_Pos));
- }
- else
- {
- assert_param(IS_RTC_YEAR(RTC_Bcd2ToByte(sDate->Year)));
- assert_param(IS_RTC_MONTH(RTC_Bcd2ToByte(sDate->Month)));
- assert_param(IS_RTC_DATE(RTC_Bcd2ToByte(sDate->Date)));
-
- datetmpreg = ((((uint32_t)sDate->Year) << RTC_DR_YU_Pos) | \
- (((uint32_t)sDate->Month) << RTC_DR_MU_Pos) | \
- ((uint32_t) sDate->Date) | \
- (((uint32_t)sDate->WeekDay) << RTC_DR_WDU_Pos));
- }
-
- /* Disable the write protection for RTC registers */
- __HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
-
- /* Enter Initialization mode */
- status = RTC_EnterInitMode(hrtc);
-
- if (status == HAL_OK)
- {
- /* Set the RTC_DR register */
- hrtc->Instance->DR = (uint32_t)(datetmpreg & RTC_DR_RESERVED_MASK);
-
- /* Exit Initialization mode */
- status = RTC_ExitInitMode(hrtc);
- }
-
- if (status == HAL_OK)
- {
- hrtc->State = HAL_RTC_STATE_READY;
- }
-
- /* Enable the write protection for RTC registers */
- __HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
-
- /* Process Unlocked */
- __HAL_UNLOCK(hrtc);
-
- return status;
- }
-
- /**
- * @brief Gets RTC current date.
- * @param hrtc pointer to a RTC_HandleTypeDef structure that contains
- * the configuration information for RTC.
- * @param sDate Pointer to Date structure
- * @param Format Specifies the format of the entered parameters.
- * This parameter can be one of the following values:
- * @arg RTC_FORMAT_BIN: Binary data format
- * @arg RTC_FORMAT_BCD: BCD data format
- * @note You must call HAL_RTC_GetDate() after HAL_RTC_GetTime() to unlock the
- * values in the higher-order calendar shadow registers to ensure
- * consistency between the time and date values.
- * Reading RTC current time locks the values in calendar shadow registers
- * until current date is read to ensure consistency between the time and
- * date values.
- * @retval HAL status
- */
- HAL_StatusTypeDef HAL_RTC_GetDate(RTC_HandleTypeDef *hrtc, RTC_DateTypeDef *sDate, uint32_t Format)
- {
- uint32_t datetmpreg = 0U;
-
- /* Check the parameters */
- assert_param(IS_RTC_FORMAT(Format));
-
- /* Get the DR register */
- datetmpreg = (uint32_t)(hrtc->Instance->DR & RTC_DR_RESERVED_MASK);
-
- /* Fill the structure fields with the read parameters */
- sDate->Year = (uint8_t)((datetmpreg & (RTC_DR_YT | RTC_DR_YU)) >> RTC_DR_YU_Pos);
- sDate->Month = (uint8_t)((datetmpreg & (RTC_DR_MT | RTC_DR_MU)) >> RTC_DR_MU_Pos);
- sDate->Date = (uint8_t) (datetmpreg & (RTC_DR_DT | RTC_DR_DU));
- sDate->WeekDay = (uint8_t)((datetmpreg & (RTC_DR_WDU)) >> RTC_DR_WDU_Pos);
-
- /* Check the input parameters format */
- if (Format == RTC_FORMAT_BIN)
- {
- /* Convert the date structure parameters to Binary format */
- sDate->Year = (uint8_t)RTC_Bcd2ToByte(sDate->Year);
- sDate->Month = (uint8_t)RTC_Bcd2ToByte(sDate->Month);
- sDate->Date = (uint8_t)RTC_Bcd2ToByte(sDate->Date);
- }
- return HAL_OK;
- }
-
- /**
- * @}
- */
-
- /** @defgroup RTC_Exported_Functions_Group3 RTC Alarm functions
- * @brief RTC Alarm functions
- *
- @verbatim
- ===============================================================================
- ##### RTC Alarm functions #####
- ===============================================================================
-
- [..] This section provides functions allowing to configure Alarm feature
-
- @endverbatim
- * @{
- */
- /**
- * @brief Sets the specified RTC Alarm.
- * @param hrtc pointer to a RTC_HandleTypeDef structure that contains
- * the configuration information for RTC.
- * @param sAlarm Pointer to Alarm structure
- * @param Format Specifies the format of the entered parameters.
- * This parameter can be one of the following values:
- * @arg RTC_FORMAT_BIN: Binary data format
- * @arg RTC_FORMAT_BCD: BCD data format
- * @note The Alarm register can only be written when the corresponding Alarm
- * is disabled (Use the HAL_RTC_DeactivateAlarm()).
- * @note The HAL_RTC_SetTime() must be called before enabling the Alarm feature.
- * @retval HAL status
- */
- HAL_StatusTypeDef HAL_RTC_SetAlarm(RTC_HandleTypeDef *hrtc, RTC_AlarmTypeDef *sAlarm, uint32_t Format)
- {
- uint32_t tickstart = 0U;
- uint32_t tmpreg = 0U;
- uint32_t subsecondtmpreg = 0U;
-
- /* Check the parameters */
- assert_param(IS_RTC_FORMAT(Format));
- assert_param(IS_RTC_ALARM(sAlarm->Alarm));
- assert_param(IS_RTC_ALARM_MASK(sAlarm->AlarmMask));
- assert_param(IS_RTC_ALARM_DATE_WEEKDAY_SEL(sAlarm->AlarmDateWeekDaySel));
- assert_param(IS_RTC_ALARM_SUB_SECOND_VALUE(sAlarm->AlarmTime.SubSeconds));
- assert_param(IS_RTC_ALARM_SUB_SECOND_MASK(sAlarm->AlarmSubSecondMask));
-
- /* Process Locked */
- __HAL_LOCK(hrtc);
-
- /* Change RTC state to BUSY */
- hrtc->State = HAL_RTC_STATE_BUSY;
-
- /* Check the data format (binary or BCD) and store the Alarm time and date
- configuration accordingly */
- if (Format == RTC_FORMAT_BIN)
- {
- if ((hrtc->Instance->CR & RTC_CR_FMT) != 0U)
- {
- assert_param(IS_RTC_HOUR12(sAlarm->AlarmTime.Hours));
- assert_param(IS_RTC_HOURFORMAT12(sAlarm->AlarmTime.TimeFormat));
- }
- else
- {
- sAlarm->AlarmTime.TimeFormat = 0x00U;
- assert_param(IS_RTC_HOUR24(sAlarm->AlarmTime.Hours));
- }
- assert_param(IS_RTC_MINUTES(sAlarm->AlarmTime.Minutes));
- assert_param(IS_RTC_SECONDS(sAlarm->AlarmTime.Seconds));
-
- if (sAlarm->AlarmDateWeekDaySel == RTC_ALARMDATEWEEKDAYSEL_DATE)
- {
- assert_param(IS_RTC_ALARM_DATE_WEEKDAY_DATE(sAlarm->AlarmDateWeekDay));
- }
- else
- {
- assert_param(IS_RTC_ALARM_DATE_WEEKDAY_WEEKDAY(sAlarm->AlarmDateWeekDay));
- }
-
- tmpreg = (((uint32_t)RTC_ByteToBcd2(sAlarm->AlarmTime.Hours) << RTC_ALRMAR_HU_Pos) | \
- ((uint32_t)RTC_ByteToBcd2(sAlarm->AlarmTime.Minutes) << RTC_ALRMAR_MNU_Pos) | \
- ((uint32_t)RTC_ByteToBcd2(sAlarm->AlarmTime.Seconds)) | \
- ((uint32_t)(sAlarm->AlarmTime.TimeFormat) << RTC_TR_PM_Pos) | \
- ((uint32_t)RTC_ByteToBcd2(sAlarm->AlarmDateWeekDay) << RTC_ALRMAR_DU_Pos) | \
- ((uint32_t)sAlarm->AlarmDateWeekDaySel) | \
- ((uint32_t)sAlarm->AlarmMask));
- }
- else
- {
- if ((hrtc->Instance->CR & RTC_CR_FMT) != 0U)
- {
- assert_param(IS_RTC_HOUR12(RTC_Bcd2ToByte(sAlarm->AlarmTime.Hours)));
- assert_param(IS_RTC_HOURFORMAT12(sAlarm->AlarmTime.TimeFormat));
- }
- else
- {
- sAlarm->AlarmTime.TimeFormat = 0x00U;
- assert_param(IS_RTC_HOUR24(RTC_Bcd2ToByte(sAlarm->AlarmTime.Hours)));
- }
-
- assert_param(IS_RTC_MINUTES(RTC_Bcd2ToByte(sAlarm->AlarmTime.Minutes)));
- assert_param(IS_RTC_SECONDS(RTC_Bcd2ToByte(sAlarm->AlarmTime.Seconds)));
-
- if (sAlarm->AlarmDateWeekDaySel == RTC_ALARMDATEWEEKDAYSEL_DATE)
- {
- assert_param(IS_RTC_ALARM_DATE_WEEKDAY_DATE(RTC_Bcd2ToByte(sAlarm->AlarmDateWeekDay)));
- }
- else
- {
- assert_param(IS_RTC_ALARM_DATE_WEEKDAY_WEEKDAY(RTC_Bcd2ToByte(sAlarm->AlarmDateWeekDay)));
- }
-
- tmpreg = (((uint32_t)(sAlarm->AlarmTime.Hours) << RTC_ALRMAR_HU_Pos) | \
- ((uint32_t)(sAlarm->AlarmTime.Minutes) << RTC_ALRMAR_MNU_Pos) | \
- ((uint32_t) sAlarm->AlarmTime.Seconds) | \
- ((uint32_t)(sAlarm->AlarmTime.TimeFormat) << RTC_TR_PM_Pos) | \
- ((uint32_t)(sAlarm->AlarmDateWeekDay) << RTC_ALRMAR_DU_Pos) | \
- ((uint32_t) sAlarm->AlarmDateWeekDaySel) | \
- ((uint32_t) sAlarm->AlarmMask));
- }
-
- /* Store the Alarm subseconds configuration */
- subsecondtmpreg = (uint32_t)((uint32_t)(sAlarm->AlarmTime.SubSeconds) | \
- (uint32_t)(sAlarm->AlarmSubSecondMask));
-
- /* Disable the write protection for RTC registers */
- __HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
-
- /* Configure the Alarm register */
- if (sAlarm->Alarm == RTC_ALARM_A)
- {
- /* Disable the Alarm A */
- __HAL_RTC_ALARMA_DISABLE(hrtc);
-
- /* In case interrupt mode is used, the interrupt source must be disabled */
- __HAL_RTC_ALARM_DISABLE_IT(hrtc, RTC_IT_ALRA);
-
- /* Clear the Alarm flag */
- __HAL_RTC_ALARM_CLEAR_FLAG(hrtc, RTC_FLAG_ALRAF);
-
- /* Get tick */
- tickstart = HAL_GetTick();
-
- /* Wait till RTC ALRAWF flag is set and if timeout is reached exit */
- while (__HAL_RTC_ALARM_GET_FLAG(hrtc, RTC_FLAG_ALRAWF) == 0U)
- {
- 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;
- }
- }
-
- hrtc->Instance->ALRMAR = (uint32_t)tmpreg;
- /* Configure the Alarm A Subseconds register */
- hrtc->Instance->ALRMASSR = subsecondtmpreg;
- /* Configure the Alarm state: Enable Alarm */
- __HAL_RTC_ALARMA_ENABLE(hrtc);
- }
- else
- {
- /* Disable the Alarm B */
- __HAL_RTC_ALARMB_DISABLE(hrtc);
-
- /* In case interrupt mode is used, the interrupt source must be disabled */
- __HAL_RTC_ALARM_DISABLE_IT(hrtc, RTC_IT_ALRB);
-
- /* Clear the Alarm flag */
- __HAL_RTC_ALARM_CLEAR_FLAG(hrtc, RTC_FLAG_ALRBF);
-
- /* Get tick */
- tickstart = HAL_GetTick();
-
- /* Wait till RTC ALRBWF flag is set and if timeout is reached exit */
- while (__HAL_RTC_ALARM_GET_FLAG(hrtc, RTC_FLAG_ALRBWF) == 0U)
- {
- 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;
- }
- }
-
- hrtc->Instance->ALRMBR = (uint32_t)tmpreg;
- /* Configure the Alarm B Subseconds register */
- hrtc->Instance->ALRMBSSR = subsecondtmpreg;
- /* Configure the Alarm state: Enable Alarm */
- __HAL_RTC_ALARMB_ENABLE(hrtc);
- }
-
- /* Enable the write protection for RTC registers */
- __HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
-
- /* Change RTC state back to READY */
- hrtc->State = HAL_RTC_STATE_READY;
-
- /* Process Unlocked */
- __HAL_UNLOCK(hrtc);
-
- return HAL_OK;
- }
-
- /**
- * @brief Sets the specified RTC Alarm with Interrupt.
- * @param hrtc pointer to a RTC_HandleTypeDef structure that contains
- * the configuration information for RTC.
- * @param sAlarm Pointer to Alarm structure
- * @param Format Specifies the format of the entered parameters.
- * This parameter can be one of the following values:
- * @arg RTC_FORMAT_BIN: Binary data format
- * @arg RTC_FORMAT_BCD: BCD data format
- * @note The Alarm register can only be written when the corresponding Alarm
- * is disabled (Use the HAL_RTC_DeactivateAlarm()).
- * @note The HAL_RTC_SetTime() must be called before enabling the Alarm feature.
- * @retval HAL status
- */
- HAL_StatusTypeDef HAL_RTC_SetAlarm_IT(RTC_HandleTypeDef *hrtc, RTC_AlarmTypeDef *sAlarm, uint32_t Format)
- {
- __IO uint32_t count = RTC_TIMEOUT_VALUE * (SystemCoreClock / 32U / 1000U);
- uint32_t tmpreg = 0U;
- uint32_t subsecondtmpreg = 0U;
-
- /* Check the parameters */
- assert_param(IS_RTC_FORMAT(Format));
- assert_param(IS_RTC_ALARM(sAlarm->Alarm));
- assert_param(IS_RTC_ALARM_MASK(sAlarm->AlarmMask));
- assert_param(IS_RTC_ALARM_DATE_WEEKDAY_SEL(sAlarm->AlarmDateWeekDaySel));
- assert_param(IS_RTC_ALARM_SUB_SECOND_VALUE(sAlarm->AlarmTime.SubSeconds));
- assert_param(IS_RTC_ALARM_SUB_SECOND_MASK(sAlarm->AlarmSubSecondMask));
-
- /* Process Locked */
- __HAL_LOCK(hrtc);
-
- /* Change RTC state to BUSY */
- hrtc->State = HAL_RTC_STATE_BUSY;
-
- /* Check the data format (binary or BCD) and store the Alarm time and date
- configuration accordingly */
- if (Format == RTC_FORMAT_BIN)
- {
- if ((hrtc->Instance->CR & RTC_CR_FMT) != 0U)
- {
- assert_param(IS_RTC_HOUR12(sAlarm->AlarmTime.Hours));
- assert_param(IS_RTC_HOURFORMAT12(sAlarm->AlarmTime.TimeFormat));
- }
- else
- {
- sAlarm->AlarmTime.TimeFormat = 0x00U;
- assert_param(IS_RTC_HOUR24(sAlarm->AlarmTime.Hours));
- }
- assert_param(IS_RTC_MINUTES(sAlarm->AlarmTime.Minutes));
- assert_param(IS_RTC_SECONDS(sAlarm->AlarmTime.Seconds));
-
- if (sAlarm->AlarmDateWeekDaySel == RTC_ALARMDATEWEEKDAYSEL_DATE)
- {
- assert_param(IS_RTC_ALARM_DATE_WEEKDAY_DATE(sAlarm->AlarmDateWeekDay));
- }
- else
- {
- assert_param(IS_RTC_ALARM_DATE_WEEKDAY_WEEKDAY(sAlarm->AlarmDateWeekDay));
- }
-
- tmpreg = (((uint32_t)RTC_ByteToBcd2(sAlarm->AlarmTime.Hours) << RTC_ALRMAR_HU_Pos) | \
- ((uint32_t)RTC_ByteToBcd2(sAlarm->AlarmTime.Minutes) << RTC_ALRMAR_MNU_Pos) | \
- ((uint32_t)RTC_ByteToBcd2(sAlarm->AlarmTime.Seconds)) | \
- ((uint32_t)(sAlarm->AlarmTime.TimeFormat) << RTC_TR_PM_Pos) | \
- ((uint32_t)RTC_ByteToBcd2(sAlarm->AlarmDateWeekDay) << RTC_ALRMAR_DU_Pos) | \
- ((uint32_t)sAlarm->AlarmDateWeekDaySel) | \
- ((uint32_t)sAlarm->AlarmMask));
- }
- else
- {
- if ((hrtc->Instance->CR & RTC_CR_FMT) != 0U)
- {
- assert_param(IS_RTC_HOUR12(RTC_Bcd2ToByte(sAlarm->AlarmTime.Hours)));
- assert_param(IS_RTC_HOURFORMAT12(sAlarm->AlarmTime.TimeFormat));
- }
- else
- {
- sAlarm->AlarmTime.TimeFormat = 0x00U;
- assert_param(IS_RTC_HOUR24(RTC_Bcd2ToByte(sAlarm->AlarmTime.Hours)));
- }
-
- assert_param(IS_RTC_MINUTES(RTC_Bcd2ToByte(sAlarm->AlarmTime.Minutes)));
- assert_param(IS_RTC_SECONDS(RTC_Bcd2ToByte(sAlarm->AlarmTime.Seconds)));
-
- if (sAlarm->AlarmDateWeekDaySel == RTC_ALARMDATEWEEKDAYSEL_DATE)
- {
- assert_param(IS_RTC_ALARM_DATE_WEEKDAY_DATE(RTC_Bcd2ToByte(sAlarm->AlarmDateWeekDay)));
- }
- else
- {
- assert_param(IS_RTC_ALARM_DATE_WEEKDAY_WEEKDAY(RTC_Bcd2ToByte(sAlarm->AlarmDateWeekDay)));
- }
-
- tmpreg = (((uint32_t)(sAlarm->AlarmTime.Hours) << RTC_ALRMAR_HU_Pos) | \
- ((uint32_t)(sAlarm->AlarmTime.Minutes) << RTC_ALRMAR_MNU_Pos) | \
- ((uint32_t) sAlarm->AlarmTime.Seconds) | \
- ((uint32_t)(sAlarm->AlarmTime.TimeFormat) << RTC_TR_PM_Pos) | \
- ((uint32_t)(sAlarm->AlarmDateWeekDay) << RTC_ALRMAR_DU_Pos) | \
- ((uint32_t) sAlarm->AlarmDateWeekDaySel) | \
- ((uint32_t) sAlarm->AlarmMask));
- }
-
- /* Store the Alarm subseconds configuration */
- subsecondtmpreg = (uint32_t)((uint32_t)(sAlarm->AlarmTime.SubSeconds) | \
- (uint32_t)(sAlarm->AlarmSubSecondMask));
-
- /* Disable the write protection for RTC registers */
- __HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
-
- /* Configure the Alarm register */
- if (sAlarm->Alarm == RTC_ALARM_A)
- {
- /* Disable the Alarm A */
- __HAL_RTC_ALARMA_DISABLE(hrtc);
-
- /* Clear the Alarm flag */
- __HAL_RTC_ALARM_CLEAR_FLAG(hrtc, RTC_FLAG_ALRAF);
-
- /* Wait till RTC ALRAWF flag is set and if timeout is reached exit */
- 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_ALARM_GET_FLAG(hrtc, RTC_FLAG_ALRAWF) == 0U);
-
- hrtc->Instance->ALRMAR = (uint32_t)tmpreg;
- /* Configure the Alarm A Subseconds register */
- hrtc->Instance->ALRMASSR = subsecondtmpreg;
- /* Configure the Alarm state: Enable Alarm */
- __HAL_RTC_ALARMA_ENABLE(hrtc);
- /* Configure the Alarm interrupt */
- __HAL_RTC_ALARM_ENABLE_IT(hrtc, RTC_IT_ALRA);
- }
- else
- {
- /* Disable the Alarm B */
- __HAL_RTC_ALARMB_DISABLE(hrtc);
-
- /* Clear the Alarm flag */
- __HAL_RTC_ALARM_CLEAR_FLAG(hrtc, RTC_FLAG_ALRBF);
-
- /* Reload the counter */
- count = RTC_TIMEOUT_VALUE * (SystemCoreClock / 32U / 1000U);
-
- /* Wait till RTC ALRBWF flag is set and if timeout is reached exit */
- 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_ALARM_GET_FLAG(hrtc, RTC_FLAG_ALRBWF) == 0U);
-
- hrtc->Instance->ALRMBR = (uint32_t)tmpreg;
- /* Configure the Alarm B Subseconds register */
- hrtc->Instance->ALRMBSSR = subsecondtmpreg;
- /* Configure the Alarm state: Enable Alarm */
- __HAL_RTC_ALARMB_ENABLE(hrtc);
- /* Configure the Alarm interrupt */
- __HAL_RTC_ALARM_ENABLE_IT(hrtc, RTC_IT_ALRB);
- }
-
- /* RTC Alarm Interrupt Configuration: EXTI configuration */
- __HAL_RTC_ALARM_EXTI_ENABLE_IT();
- __HAL_RTC_ALARM_EXTI_ENABLE_RISING_EDGE();
-
- /* Enable the write protection for RTC registers */
- __HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
-
- /* Change RTC state back to READY */
- hrtc->State = HAL_RTC_STATE_READY;
-
- /* Process Unlocked */
- __HAL_UNLOCK(hrtc);
-
- return HAL_OK;
- }
-
- /**
- * @brief Deactivates the specified RTC Alarm.
- * @param hrtc pointer to a RTC_HandleTypeDef structure that contains
- * the configuration information for RTC.
- * @param Alarm Specifies the Alarm.
- * This parameter can be one of the following values:
- * @arg RTC_ALARM_A: Alarm A
- * @arg RTC_ALARM_B: Alarm B
- * @retval HAL status
- */
- HAL_StatusTypeDef HAL_RTC_DeactivateAlarm(RTC_HandleTypeDef *hrtc, uint32_t Alarm)
- {
- uint32_t tickstart = 0U;
-
- /* Check the parameters */
- assert_param(IS_RTC_ALARM(Alarm));
-
- /* Process Locked */
- __HAL_LOCK(hrtc);
-
- hrtc->State = HAL_RTC_STATE_BUSY;
-
- /* Disable the write protection for RTC registers */
- __HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
-
- if (Alarm == RTC_ALARM_A)
- {
- /* Disable Alarm A */
- __HAL_RTC_ALARMA_DISABLE(hrtc);
-
- /* In case interrupt mode is used, the interrupt source must be disabled */
- __HAL_RTC_ALARM_DISABLE_IT(hrtc, RTC_IT_ALRA);
-
- /* Get tick */
- tickstart = HAL_GetTick();
-
- /* Wait till RTC ALRxWF flag is set and if timeout is reached exit */
- while (__HAL_RTC_ALARM_GET_FLAG(hrtc, RTC_FLAG_ALRAWF) == 0U)
- {
- 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;
- }
- }
- }
- else
- {
- /* Disable Alarm B */
- __HAL_RTC_ALARMB_DISABLE(hrtc);
-
- /* In case interrupt mode is used, the interrupt source must be disabled */
- __HAL_RTC_ALARM_DISABLE_IT(hrtc, RTC_IT_ALRB);
-
- /* Get tick */
- tickstart = HAL_GetTick();
-
- /* Wait till RTC ALRxWF flag is set and if timeout is reached exit */
- while (__HAL_RTC_ALARM_GET_FLAG(hrtc, RTC_FLAG_ALRBWF) == 0U)
- {
- 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 the RTC Alarm value and masks.
- * @param hrtc pointer to a RTC_HandleTypeDef structure that contains
- * the configuration information for RTC.
- * @param sAlarm Pointer to Date structure
- * @param Alarm Specifies the Alarm.
- * This parameter can be one of the following values:
- * @arg RTC_ALARM_A: Alarm A
- * @arg RTC_ALARM_B: Alarm B
- * @param Format Specifies the format of the entered parameters.
- * This parameter can be one of the following values:
- * @arg RTC_FORMAT_BIN: Binary data format
- * @arg RTC_FORMAT_BCD: BCD data format
- * @retval HAL status
- */
- HAL_StatusTypeDef HAL_RTC_GetAlarm(RTC_HandleTypeDef *hrtc, RTC_AlarmTypeDef *sAlarm, uint32_t Alarm, uint32_t Format)
- {
- uint32_t tmpreg = 0U;
- uint32_t subsecondtmpreg = 0U;
-
- /* Check the parameters */
- assert_param(IS_RTC_FORMAT(Format));
- assert_param(IS_RTC_ALARM(Alarm));
-
- if (Alarm == RTC_ALARM_A)
- {
- sAlarm->Alarm = RTC_ALARM_A;
-
- tmpreg = (uint32_t)(hrtc->Instance->ALRMAR);
- subsecondtmpreg = (uint32_t)((hrtc->Instance->ALRMASSR) & RTC_ALRMASSR_SS);
- }
- else
- {
- sAlarm->Alarm = RTC_ALARM_B;
-
- tmpreg = (uint32_t)(hrtc->Instance->ALRMBR);
- subsecondtmpreg = (uint32_t)((hrtc->Instance->ALRMBSSR) & RTC_ALRMBSSR_SS);
- }
-
- /* Fill the structure with the read parameters */
- sAlarm->AlarmTime.Hours = (uint8_t) ((tmpreg & (RTC_ALRMAR_HT | RTC_ALRMAR_HU)) >> RTC_ALRMAR_HU_Pos);
- sAlarm->AlarmTime.Minutes = (uint8_t) ((tmpreg & (RTC_ALRMAR_MNT | RTC_ALRMAR_MNU)) >> RTC_ALRMAR_MNU_Pos);
- sAlarm->AlarmTime.Seconds = (uint8_t) ( tmpreg & (RTC_ALRMAR_ST | RTC_ALRMAR_SU));
- sAlarm->AlarmTime.TimeFormat = (uint8_t) ((tmpreg & RTC_ALRMAR_PM) >> RTC_TR_PM_Pos);
- sAlarm->AlarmTime.SubSeconds = (uint32_t) subsecondtmpreg;
- sAlarm->AlarmDateWeekDay = (uint8_t) ((tmpreg & (RTC_ALRMAR_DT | RTC_ALRMAR_DU)) >> RTC_ALRMAR_DU_Pos);
- sAlarm->AlarmDateWeekDaySel = (uint32_t) (tmpreg & RTC_ALRMAR_WDSEL);
- sAlarm->AlarmMask = (uint32_t) (tmpreg & RTC_ALARMMASK_ALL);
-
- if (Format == RTC_FORMAT_BIN)
- {
- sAlarm->AlarmTime.Hours = RTC_Bcd2ToByte(sAlarm->AlarmTime.Hours);
- sAlarm->AlarmTime.Minutes = RTC_Bcd2ToByte(sAlarm->AlarmTime.Minutes);
- sAlarm->AlarmTime.Seconds = RTC_Bcd2ToByte(sAlarm->AlarmTime.Seconds);
- sAlarm->AlarmDateWeekDay = RTC_Bcd2ToByte(sAlarm->AlarmDateWeekDay);
- }
-
- return HAL_OK;
- }
-
- /**
- * @brief Handles Alarm interrupt request.
- * @param hrtc pointer to a RTC_HandleTypeDef structure that contains
- * the configuration information for RTC.
- * @retval None
- */
- void HAL_RTC_AlarmIRQHandler(RTC_HandleTypeDef *hrtc)
- {
- /* Get the Alarm A interrupt source enable status */
- if (__HAL_RTC_ALARM_GET_IT_SOURCE(hrtc, RTC_IT_ALRA) != 0U)
- {
- /* Get the pending status of the Alarm A Interrupt */
- if (__HAL_RTC_ALARM_GET_FLAG(hrtc, RTC_FLAG_ALRAF) != 0U)
- {
- /* Alarm A callback */
- #if (USE_HAL_RTC_REGISTER_CALLBACKS == 1)
- hrtc->AlarmAEventCallback(hrtc);
- #else
- HAL_RTC_AlarmAEventCallback(hrtc);
- #endif /* USE_HAL_RTC_REGISTER_CALLBACKS */
-
- /* Clear the Alarm A interrupt pending bit */
- __HAL_RTC_ALARM_CLEAR_FLAG(hrtc, RTC_FLAG_ALRAF);
- }
- }
-
- /* Get the Alarm B interrupt source enable status */
- if (__HAL_RTC_ALARM_GET_IT_SOURCE(hrtc, RTC_IT_ALRB) != 0U)
- {
- /* Get the pending status of the Alarm B Interrupt */
- if (__HAL_RTC_ALARM_GET_FLAG(hrtc, RTC_FLAG_ALRBF) != 0U)
- {
- /* Alarm B callback */
- #if (USE_HAL_RTC_REGISTER_CALLBACKS == 1)
- hrtc->AlarmBEventCallback(hrtc);
- #else
- HAL_RTCEx_AlarmBEventCallback(hrtc);
- #endif /* USE_HAL_RTC_REGISTER_CALLBACKS */
-
- /* Clear the Alarm B interrupt pending bit */
- __HAL_RTC_ALARM_CLEAR_FLAG(hrtc, RTC_FLAG_ALRBF);
- }
- }
-
- /* Clear the EXTI's line Flag for RTC Alarm */
- __HAL_RTC_ALARM_EXTI_CLEAR_FLAG();
-
- /* Change RTC state */
- hrtc->State = HAL_RTC_STATE_READY;
- }
-
- /**
- * @brief Alarm A callback.
- * @param hrtc pointer to a RTC_HandleTypeDef structure that contains
- * the configuration information for RTC.
- * @retval None
- */
- __weak void HAL_RTC_AlarmAEventCallback(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_AlarmAEventCallback could be implemented in the user file
- */
- }
-
- /**
- * @brief Handles Alarm A 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_RTC_PollForAlarmAEvent(RTC_HandleTypeDef *hrtc, uint32_t Timeout)
- {
- uint32_t tickstart = 0U;
-
- /* Get tick */
- tickstart = HAL_GetTick();
-
- /* Wait till RTC ALRAF flag is set and if timeout is reached exit */
- while (__HAL_RTC_ALARM_GET_FLAG(hrtc, RTC_FLAG_ALRAF) == 0U)
- {
- 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_ALRAF);
-
- /* Change RTC state */
- hrtc->State = HAL_RTC_STATE_READY;
-
- return HAL_OK;
- }
-
- /**
- * @}
- */
-
- /** @defgroup RTC_Exported_Functions_Group4 Peripheral Control functions
- * @brief Peripheral Control functions
- *
- @verbatim
- ===============================================================================
- ##### Peripheral Control functions #####
- ===============================================================================
- [..]
- This subsection provides functions allowing to
- (+) Wait for RTC Time and Date Synchronization
- (+) Manage RTC Summer or Winter time change
-
- @endverbatim
- * @{
- */
-
- /**
- * @brief Waits until the RTC Time and Date registers (RTC_TR and RTC_DR) are
- * synchronized with RTC APB clock.
- * @note The RTC Resynchronization mode is write protected, use the
- * __HAL_RTC_WRITEPROTECTION_DISABLE() before calling this function.
- * @note To read the calendar through the shadow registers after Calendar
- * initialization, calendar update or after wakeup from low power modes
- * the software must first clear the RSF flag.
- * The software must then wait until it is set again before reading
- * the calendar, which means that the calendar registers have been
- * correctly copied into the RTC_TR and RTC_DR shadow registers.
- * @param hrtc pointer to a RTC_HandleTypeDef structure that contains
- * the configuration information for RTC.
- * @retval HAL status
- */
- HAL_StatusTypeDef HAL_RTC_WaitForSynchro(RTC_HandleTypeDef *hrtc)
- {
- uint32_t tickstart = 0U;
-
- /* Clear RSF flag */
- hrtc->Instance->ISR &= (uint32_t)RTC_RSF_MASK;
-
- /* Get tick */
- tickstart = HAL_GetTick();
-
- /* Wait the registers to be synchronised */
- while ((hrtc->Instance->ISR & RTC_ISR_RSF) == 0U)
- {
- if ((HAL_GetTick() - tickstart) > RTC_TIMEOUT_VALUE)
- {
- return HAL_TIMEOUT;
- }
- }
-
- return HAL_OK;
- }
-
- /**
- * @brief Daylight Saving Time, adds one hour to the calendar in one
- * single operation without going through the initialization procedure.
- * @param hrtc pointer to a RTC_HandleTypeDef structure that contains
- * the configuration information for RTC.
- * @retval None
- */
- void HAL_RTC_DST_Add1Hour(RTC_HandleTypeDef *hrtc)
- {
- __HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
- SET_BIT(hrtc->Instance->CR, RTC_CR_ADD1H);
- __HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
- }
-
- /**
- * @brief Daylight Saving Time, subtracts one hour from the calendar in one
- * single operation without going through the initialization procedure.
- * @param hrtc pointer to a RTC_HandleTypeDef structure that contains
- * the configuration information for RTC.
- * @retval None
- */
- void HAL_RTC_DST_Sub1Hour(RTC_HandleTypeDef *hrtc)
- {
- __HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
- SET_BIT(hrtc->Instance->CR, RTC_CR_SUB1H);
- __HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
- }
-
- /**
- * @brief Daylight Saving Time, sets the store operation bit.
- * @note It can be used by the software in order to memorize the DST status.
- * @param hrtc pointer to a RTC_HandleTypeDef structure that contains
- * the configuration information for RTC.
- * @retval None
- */
- void HAL_RTC_DST_SetStoreOperation(RTC_HandleTypeDef *hrtc)
- {
- __HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
- SET_BIT(hrtc->Instance->CR, RTC_CR_BKP);
- __HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
- }
-
- /**
- * @brief Daylight Saving Time, clears the store operation bit.
- * @param hrtc pointer to a RTC_HandleTypeDef structure that contains
- * the configuration information for RTC.
- * @retval None
- */
- void HAL_RTC_DST_ClearStoreOperation(RTC_HandleTypeDef *hrtc)
- {
- __HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
- CLEAR_BIT(hrtc->Instance->CR, RTC_CR_BKP);
- __HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
- }
-
- /**
- * @brief Daylight Saving Time, reads the store operation bit.
- * @param hrtc RTC handle
- * @retval operation see RTC_StoreOperation_Definitions
- */
- uint32_t HAL_RTC_DST_ReadStoreOperation(RTC_HandleTypeDef *hrtc)
- {
- return READ_BIT(hrtc->Instance->CR, RTC_CR_BKP);
- }
-
- /**
- * @}
- */
-
- /** @defgroup RTC_Exported_Functions_Group5 Peripheral State functions
- * @brief Peripheral State functions
- *
- @verbatim
- ===============================================================================
- ##### Peripheral State functions #####
- ===============================================================================
- [..]
- This subsection provides functions allowing to
- (+) Get RTC state
-
- @endverbatim
- * @{
- */
- /**
- * @brief Returns the RTC state.
- * @param hrtc pointer to a RTC_HandleTypeDef structure that contains
- * the configuration information for RTC.
- * @retval HAL state
- */
- HAL_RTCStateTypeDef HAL_RTC_GetState(RTC_HandleTypeDef *hrtc)
- {
- return hrtc->State;
- }
-
- /**
- * @}
- */
-
-
- /**
- * @}
- */
-
- /** @addtogroup RTC_Private_Functions
- * @{
- */
-
- /**
- * @brief Enters the RTC Initialization mode.
- * @note The RTC Initialization mode is write protected, use the
- * __HAL_RTC_WRITEPROTECTION_DISABLE() before calling this function.
- * @param hrtc pointer to a RTC_HandleTypeDef structure that contains
- * the configuration information for RTC.
- * @retval HAL status
- */
- HAL_StatusTypeDef RTC_EnterInitMode(RTC_HandleTypeDef *hrtc)
- {
- uint32_t tickstart = 0U;
- HAL_StatusTypeDef status = HAL_OK;
-
- /* Check that Initialization mode is not already set */
- if (READ_BIT(hrtc->Instance->ISR, RTC_ISR_INITF) == 0U)
- {
- /* Set INIT bit to enter Initialization mode */
- SET_BIT(hrtc->Instance->ISR, RTC_ISR_INIT);
-
- /* Get tick */
- tickstart = HAL_GetTick();
-
- /* Wait till RTC is in INIT state and if timeout is reached exit */
- while ((READ_BIT(hrtc->Instance->ISR, RTC_ISR_INITF) == 0U) && (status != HAL_ERROR))
- {
- if ((HAL_GetTick() - tickstart) > RTC_TIMEOUT_VALUE)
- {
- /* Set RTC state */
- hrtc->State = HAL_RTC_STATE_ERROR;
- status = HAL_ERROR;
- }
- }
- }
-
- return status;
- }
-
- /**
- * @brief Exits the RTC Initialization mode.
- * @param hrtc pointer to a RTC_HandleTypeDef structure that contains
- * the configuration information for RTC.
- * @retval HAL status
- */
- HAL_StatusTypeDef RTC_ExitInitMode(RTC_HandleTypeDef *hrtc)
- {
- HAL_StatusTypeDef status = HAL_OK;
-
- /* Clear INIT bit to exit Initialization mode */
- CLEAR_BIT(hrtc->Instance->ISR, RTC_ISR_INIT);
-
- /* If CR_BYPSHAD bit = 0, wait for synchro */
- if (READ_BIT(hrtc->Instance->CR, RTC_CR_BYPSHAD) == 0U)
- {
- if (HAL_RTC_WaitForSynchro(hrtc) != HAL_OK)
- {
- /* Set RTC state */
- hrtc->State = HAL_RTC_STATE_ERROR;
- status = HAL_ERROR;
- }
- }
-
- return status;
- }
-
- /**
- * @brief Converts a 2-digit number from decimal to BCD format.
- * @param number decimal-formatted number (from 0 to 99) to be converted
- * @retval Converted byte
- */
- uint8_t RTC_ByteToBcd2(uint8_t number)
- {
- uint8_t bcdhigh = 0U;
-
- while (number >= 10U)
- {
- bcdhigh++;
- number -= 10U;
- }
-
- return ((uint8_t)(bcdhigh << 4U) | number);
- }
-
- /**
- * @brief Converts a 2-digit number from BCD to decimal format.
- * @param number BCD-formatted number (from 00 to 99) to be converted
- * @retval Converted word
- */
- uint8_t RTC_Bcd2ToByte(uint8_t number)
- {
- uint8_t tmp = 0U;
- tmp = ((uint8_t)(number & (uint8_t)0xF0) >> (uint8_t)0x4) * 10;
- return (tmp + (number & (uint8_t)0x0F));
- }
-
- /**
- * @}
- */
-
- #endif /* HAL_RTC_MODULE_ENABLED */
- /**
- * @}
- */
-
- /**
- * @}
- */
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