text: /**
    ******************************************************************************
    * @file    stm32f0xx_hal_rtc.h
    * @author  MCD Application Team
    * @brief   Header file of RTC HAL module.
    ******************************************************************************
    * @attention
    *
    * <h2><center>&copy; Copyright (c) 2016 STMicroelectronics.
    * All rights reserved.</center></h2>
    *
    * This software component is licensed by ST under BSD 3-Clause license,
    * the "License"; You may not use this file except in compliance with the
    * License. You may obtain a copy of the License at:
    *                        opensource.org/licenses/BSD-3-Clause
    *
    ******************************************************************************
    */
  
  /* Define to prevent recursive inclusion -------------------------------------*/
  #ifndef __STM32F0xx_HAL_RTC_H
  #define __STM32F0xx_HAL_RTC_H
  
  #ifdef __cplusplus
  extern "C" {
  #endif
  
  /* Includes ------------------------------------------------------------------*/
  #include "stm32f0xx_hal_def.h"
  
  /** @addtogroup STM32F0xx_HAL_Driver
    * @{
    */
  
  /** @defgroup RTC RTC
    * @{
    */
  
  /* Exported types ------------------------------------------------------------*/
  /** @defgroup RTC_Exported_Types RTC Exported Types
    * @{
    */
  
  /**
    * @brief  HAL State structures definition
    */
  typedef enum
  {
    HAL_RTC_STATE_RESET             = 0x00U,  /*!< RTC not yet initialized or disabled */
    HAL_RTC_STATE_READY             = 0x01U,  /*!< RTC initialized and ready for use   */
    HAL_RTC_STATE_BUSY              = 0x02U,  /*!< RTC process is ongoing              */
    HAL_RTC_STATE_TIMEOUT           = 0x03U,  /*!< RTC timeout state                   */
    HAL_RTC_STATE_ERROR             = 0x04U   /*!< RTC error state                     */
  
  } HAL_RTCStateTypeDef;
  
  /**
    * @brief  RTC Configuration Structure definition
    */
  typedef struct
  {
    uint32_t HourFormat;      /*!< Specifies the RTC Hour Format.
                                   This parameter can be a value of @ref RTC_Hour_Formats */
  
    uint32_t AsynchPrediv;    /*!< Specifies the RTC Asynchronous Predivider value.
                                   This parameter must be a number between Min_Data = 0x00 and Max_Data = 0x7F */
  
    uint32_t SynchPrediv;     /*!< Specifies the RTC Synchronous Predivider value.
                                   This parameter must be a number between Min_Data = 0x00 and Max_Data = 0x7FFF */
  
    uint32_t OutPut;          /*!< Specifies which signal will be routed to the RTC output.
                                   This parameter can be a value of @ref RTCEx_Output_selection_Definitions */
  
    uint32_t OutPutPolarity;  /*!< Specifies the polarity of the output signal.
                                   This parameter can be a value of @ref RTC_Output_Polarity_Definitions */
  
    uint32_t OutPutType;      /*!< Specifies the RTC Output Pin mode.
                                   This parameter can be a value of @ref RTC_Output_Type_ALARM_OUT */
  } RTC_InitTypeDef;
  
  /**
    * @brief  RTC Time structure definition
    */
  typedef struct
  {
    uint8_t Hours;            /*!< Specifies the RTC Time Hour.
                                   This parameter must be a number between Min_Data = 0 and Max_Data = 12 if the RTC_HourFormat_12 is selected.
                                   This parameter must be a number between Min_Data = 0 and Max_Data = 23 if the RTC_HourFormat_24 is selected  */
  
    uint8_t Minutes;          /*!< Specifies the RTC Time Minutes.
                                   This parameter must be a number between Min_Data = 0 and Max_Data = 59 */
  
    uint8_t Seconds;          /*!< Specifies the RTC Time Seconds.
                                   This parameter must be a number between Min_Data = 0 and Max_Data = 59 */
  
    uint8_t TimeFormat;       /*!< Specifies the RTC AM/PM Time.
                                   This parameter can be a value of @ref RTC_AM_PM_Definitions */
  
    uint32_t SubSeconds;     /*!< Specifies the RTC_SSR RTC Sub Second register content.
                                   This parameter corresponds to a time unit range between [0-1] Second
                                   with [1 Sec / SecondFraction +1] granularity */
  
    uint32_t SecondFraction;  /*!< Specifies the range or granularity of Sub Second register content
                                   corresponding to Synchronous pre-scaler factor value (PREDIV_S)
                                   This parameter corresponds to a time unit range between [0-1] Second
                                   with [1 Sec / SecondFraction +1] granularity.
                                   This field will be used only by HAL_RTC_GetTime function */
  
    uint32_t DayLightSaving;  /*!< This interface is deprecated. To manage Daylight
                                   Saving Time, please use HAL_RTC_DST_xxx functions */
  
    uint32_t StoreOperation;  /*!< This interface is deprecated. To manage Daylight
                                   Saving Time, please use HAL_RTC_DST_xxx functions */
  } RTC_TimeTypeDef;
  
  /**
    * @brief  RTC Date structure definition
    */
  typedef struct
  {
    uint8_t WeekDay;  /*!< Specifies the RTC Date WeekDay.
                           This parameter can be a value of @ref RTC_WeekDay_Definitions */
  
    uint8_t Month;    /*!< Specifies the RTC Date Month (in BCD format).
                           This parameter can be a value of @ref RTC_Month_Date_Definitions */
  
    uint8_t Date;     /*!< Specifies the RTC Date.
                           This parameter must be a number between Min_Data = 1 and Max_Data = 31 */
  
    uint8_t Year;     /*!< Specifies the RTC Date Year.
                           This parameter must be a number between Min_Data = 0 and Max_Data = 99 */
  
  } RTC_DateTypeDef;
  
  /**
    * @brief  RTC Alarm structure definition
    */
  typedef struct
  {
    RTC_TimeTypeDef AlarmTime;     /*!< Specifies the RTC Alarm Time members */
  
    uint32_t AlarmMask;            /*!< Specifies the RTC Alarm Masks.
                                        This parameter can be a value of @ref RTC_AlarmMask_Definitions */
  
    uint32_t AlarmSubSecondMask;   /*!< Specifies the RTC Alarm SubSeconds Masks.
                                        This parameter can be a value of @ref RTC_Alarm_Sub_Seconds_Masks_Definitions */
  
    uint32_t AlarmDateWeekDaySel;  /*!< Specifies the RTC Alarm is on Date or WeekDay.
                                       This parameter can be a value of @ref RTC_AlarmDateWeekDay_Definitions */
  
    uint8_t AlarmDateWeekDay;      /*!< Specifies the RTC Alarm Date/WeekDay.
                                        If the Alarm Date is selected, this parameter must be set to a value in the 1-31 range.
                                        If the Alarm WeekDay is selected, this parameter can be a value of @ref RTC_WeekDay_Definitions */
  
    uint32_t Alarm;                /*!< Specifies the alarm .
                                        This parameter can be a value of @ref RTC_Alarms_Definitions */
  } RTC_AlarmTypeDef;
  
  /**
    * @brief  RTC Handle Structure definition
    */
  #if (USE_HAL_RTC_REGISTER_CALLBACKS == 1)
  typedef struct __RTC_HandleTypeDef
  #else
  typedef struct
  #endif /* (USE_HAL_RTC_REGISTER_CALLBACKS) */
  {
    RTC_TypeDef                 *Instance;  /*!< Register base address    */
  
    RTC_InitTypeDef             Init;       /*!< RTC required parameters  */
  
    HAL_LockTypeDef             Lock;       /*!< RTC locking object       */
  
    __IO HAL_RTCStateTypeDef    State;      /*!< Time communication state */
  
  #if (USE_HAL_RTC_REGISTER_CALLBACKS == 1)
    void (* AlarmAEventCallback)(struct __RTC_HandleTypeDef *hrtc);           /*!< RTC Alarm A Event callback         */
  
    void (* TimeStampEventCallback)(struct __RTC_HandleTypeDef *hrtc);        /*!< RTC TimeStamp Event callback       */
  
  #if defined(RTC_WAKEUP_SUPPORT)
    void (* WakeUpTimerEventCallback)(struct __RTC_HandleTypeDef *hrtc);      /*!< RTC WakeUpTimer Event callback     */
  
  #endif /* RTC_WAKEUP_SUPPORT */
    void (* Tamper1EventCallback)(struct __RTC_HandleTypeDef *hrtc);          /*!< RTC Tamper 1 Event callback        */
  
    void (* Tamper2EventCallback)(struct __RTC_HandleTypeDef *hrtc);          /*!< RTC Tamper 2 Event callback        */
  
  #if defined(RTC_TAMPER3_SUPPORT)
    void (* Tamper3EventCallback)(struct __RTC_HandleTypeDef *hrtc);          /*!< RTC Tamper 3 Event callback        */
  
  #endif /* RTC_TAMPER3_SUPPORT */
    void (* MspInitCallback)(struct __RTC_HandleTypeDef *hrtc);               /*!< RTC Msp Init callback              */
  
    void (* MspDeInitCallback)(struct __RTC_HandleTypeDef *hrtc);             /*!< RTC Msp DeInit callback            */
  
  #endif /* (USE_HAL_RTC_REGISTER_CALLBACKS) */
  
  } RTC_HandleTypeDef;
  
  #if (USE_HAL_RTC_REGISTER_CALLBACKS == 1)
  /**
    * @brief  HAL RTC Callback ID enumeration definition
    */
  typedef enum
  {
    HAL_RTC_ALARM_A_EVENT_CB_ID           = 0x00u,    /*!< RTC Alarm A Event Callback ID      */
    HAL_RTC_TIMESTAMP_EVENT_CB_ID         = 0x02u,    /*!< RTC TimeStamp Event Callback ID    */
  #if defined(RTC_WAKEUP_SUPPORT)
    HAL_RTC_WAKEUPTIMER_EVENT_CB_ID       = 0x03u,    /*!< RTC WakeUp Timer Event Callback ID */
  #endif /* RTC_WAKEUP_SUPPORT */
    HAL_RTC_TAMPER1_EVENT_CB_ID           = 0x04u,    /*!< RTC Tamper 1 Callback ID           */
    HAL_RTC_TAMPER2_EVENT_CB_ID           = 0x05u,    /*!< RTC Tamper 2 Callback ID           */
  #if defined(RTC_TAMPER3_SUPPORT)
    HAL_RTC_TAMPER3_EVENT_CB_ID           = 0x06u,    /*!< RTC Tamper 3 Callback ID           */
  #endif /* RTC_TAMPER3_SUPPORT */
    HAL_RTC_MSPINIT_CB_ID                 = 0x0Eu,    /*!< RTC Msp Init callback ID           */
    HAL_RTC_MSPDEINIT_CB_ID               = 0x0Fu     /*!< RTC Msp DeInit callback ID         */
  } HAL_RTC_CallbackIDTypeDef;
  
  /**
    * @brief  HAL RTC Callback pointer definition
    */
  typedef  void (*pRTC_CallbackTypeDef)(RTC_HandleTypeDef *hrtc);  /*!< pointer to an RTC callback function */
  #endif /* USE_HAL_RTC_REGISTER_CALLBACKS */
  /**
    * @}
    */
  
  /* Exported constants --------------------------------------------------------*/
  /** @defgroup RTC_Exported_Constants RTC Exported Constants
    * @{
    */
  
  /** @defgroup RTC_Hour_Formats RTC Hour Formats
    * @{
    */
  #define RTC_HOURFORMAT_24              0x00000000U
  #define RTC_HOURFORMAT_12              0x00000040U
  
  /**
    * @}
    */
  
  /** @defgroup RTC_Output_Polarity_Definitions RTC Output Polarity Definitions
    * @{
    */
  #define RTC_OUTPUT_POLARITY_HIGH       0x00000000U
  #define RTC_OUTPUT_POLARITY_LOW        0x00100000U
  /**
    * @}
    */
  
  /** @defgroup RTC_Output_Type_ALARM_OUT RTC Output Type ALARM OUT
    * @{
    */
  #define RTC_OUTPUT_TYPE_OPENDRAIN      0x00000000U
  #define RTC_OUTPUT_TYPE_PUSHPULL       0x00040000U
  /**
    * @}
    */
  
  /** @defgroup RTC_AM_PM_Definitions RTC AM PM Definitions
    * @{
    */
  #define RTC_HOURFORMAT12_AM            ((uint8_t)0x00)
  #define RTC_HOURFORMAT12_PM            ((uint8_t)0x40)
  /**
    * @}
    */
  
  /** @defgroup RTC_DayLightSaving_Definitions RTC DayLight Saving Definitions
    * @{
    */
  #define RTC_DAYLIGHTSAVING_SUB1H       0x00020000U
  #define RTC_DAYLIGHTSAVING_ADD1H       0x00010000U
  #define RTC_DAYLIGHTSAVING_NONE        0x00000000U
  /**
    * @}
    */
  
  /** @defgroup RTC_StoreOperation_Definitions RTC Store Operation Definitions
    * @{
    */
  #define RTC_STOREOPERATION_RESET        0x00000000U
  #define RTC_STOREOPERATION_SET          0x00040000U
  /**
    * @}
    */
  
  /** @defgroup RTC_Input_parameter_format_definitions RTC Input parameter format definitions
    * @{
    */
  #define RTC_FORMAT_BIN                      0x000000000U
  #define RTC_FORMAT_BCD                      0x000000001U
  /**
    * @}
    */
  
  /** @defgroup RTC_Month_Date_Definitions RTC Month Date Definitions
    * @{
    */
  /* Coded in BCD format */
  #define RTC_MONTH_JANUARY              ((uint8_t)0x01)
  #define RTC_MONTH_FEBRUARY             ((uint8_t)0x02)
  #define RTC_MONTH_MARCH                ((uint8_t)0x03)
  #define RTC_MONTH_APRIL                ((uint8_t)0x04)
  #define RTC_MONTH_MAY                  ((uint8_t)0x05)
  #define RTC_MONTH_JUNE                 ((uint8_t)0x06)
  #define RTC_MONTH_JULY                 ((uint8_t)0x07)
  #define RTC_MONTH_AUGUST               ((uint8_t)0x08)
  #define RTC_MONTH_SEPTEMBER            ((uint8_t)0x09)
  #define RTC_MONTH_OCTOBER              ((uint8_t)0x10)
  #define RTC_MONTH_NOVEMBER             ((uint8_t)0x11)
  #define RTC_MONTH_DECEMBER             ((uint8_t)0x12)
  /**
    * @}
    */
  
  /** @defgroup RTC_WeekDay_Definitions RTC WeekDay Definitions
    * @{
    */
  #define RTC_WEEKDAY_MONDAY             ((uint8_t)0x01)
  #define RTC_WEEKDAY_TUESDAY            ((uint8_t)0x02)
  #define RTC_WEEKDAY_WEDNESDAY          ((uint8_t)0x03)
  #define RTC_WEEKDAY_THURSDAY           ((uint8_t)0x04)
  #define RTC_WEEKDAY_FRIDAY             ((uint8_t)0x05)
  #define RTC_WEEKDAY_SATURDAY           ((uint8_t)0x06)
  #define RTC_WEEKDAY_SUNDAY             ((uint8_t)0x07)
  /**
    * @}
    */
  
  /** @defgroup RTC_AlarmDateWeekDay_Definitions RTC Alarm Date WeekDay Definitions
    * @{
    */
  #define RTC_ALARMDATEWEEKDAYSEL_DATE      0x00000000U
  #define RTC_ALARMDATEWEEKDAYSEL_WEEKDAY   0x40000000U
  /**
    * @}
    */
  
  /** @defgroup RTC_AlarmMask_Definitions RTC Alarm Mask Definitions
    * @{
    */
  #define RTC_ALARMMASK_NONE                0x00000000U
  #define RTC_ALARMMASK_DATEWEEKDAY         RTC_ALRMAR_MSK4
  #define RTC_ALARMMASK_HOURS               RTC_ALRMAR_MSK3
  #define RTC_ALARMMASK_MINUTES             RTC_ALRMAR_MSK2
  #define RTC_ALARMMASK_SECONDS             RTC_ALRMAR_MSK1
  #define RTC_ALARMMASK_ALL                 0x80808080U
  /**
    * @}
    */
  
  /** @defgroup RTC_Alarms_Definitions RTC Alarms Definitions
    * @{
    */
  #define RTC_ALARM_A                       RTC_CR_ALRAE
  
  /**
    * @}
    */
  
  /** @defgroup RTC_Alarm_Sub_Seconds_Masks_Definitions RTC Alarm Sub Seconds Masks Definitions
    * @{
    */
  #define RTC_ALARMSUBSECONDMASK_ALL         0x00000000U  /*!< All Alarm SS fields are masked. 
                                                                          There is no comparison on sub seconds 
                                                                          for Alarm */
  #define RTC_ALARMSUBSECONDMASK_SS14_1      0x01000000U  /*!< SS[14:1] are don't care in Alarm 
                                                                          comparison. Only SS[0] is compared.    */
  #define RTC_ALARMSUBSECONDMASK_SS14_2      0x02000000U  /*!< SS[14:2] are don't care in Alarm 
                                                                          comparison. Only SS[1:0] are compared  */
  #define RTC_ALARMSUBSECONDMASK_SS14_3      0x03000000U  /*!< SS[14:3] are don't care in Alarm 
                                                                          comparison. Only SS[2:0] are compared  */
  #define RTC_ALARMSUBSECONDMASK_SS14_4      0x04000000U  /*!< SS[14:4] are don't care in Alarm 
                                                                          comparison. Only SS[3:0] are compared  */
  #define RTC_ALARMSUBSECONDMASK_SS14_5      0x05000000U  /*!< SS[14:5] are don't care in Alarm 
                                                                          comparison. Only SS[4:0] are compared  */
  #define RTC_ALARMSUBSECONDMASK_SS14_6      0x06000000U  /*!< SS[14:6] are don't care in Alarm 
                                                                          comparison. Only SS[5:0] are compared  */
  #define RTC_ALARMSUBSECONDMASK_SS14_7      0x07000000U  /*!< SS[14:7] are don't care in Alarm 
                                                                          comparison. Only SS[6:0] are compared  */
  #define RTC_ALARMSUBSECONDMASK_SS14_8      0x08000000U  /*!< SS[14:8] are don't care in Alarm 
                                                                          comparison. Only SS[7:0] are compared  */
  #define RTC_ALARMSUBSECONDMASK_SS14_9      0x09000000U  /*!< SS[14:9] are don't care in Alarm 
                                                                          comparison. Only SS[8:0] are compared  */
  #define RTC_ALARMSUBSECONDMASK_SS14_10     0x0A000000U  /*!< SS[14:10] are don't care in Alarm 
                                                                          comparison. Only SS[9:0] are compared  */
  #define RTC_ALARMSUBSECONDMASK_SS14_11     0x0B000000U  /*!< SS[14:11] are don't care in Alarm 
                                                                          comparison. Only SS[10:0] are compared */
  #define RTC_ALARMSUBSECONDMASK_SS14_12     0x0C000000U  /*!< SS[14:12] are don't care in Alarm 
                                                                          comparison.Only SS[11:0] are compared  */
  #define RTC_ALARMSUBSECONDMASK_SS14_13     0x0D000000U  /*!< SS[14:13] are don't care in Alarm 
                                                                          comparison. Only SS[12:0] are compared */
  #define RTC_ALARMSUBSECONDMASK_SS14        0x0E000000U  /*!< SS[14] is don't care in Alarm 
                                                                          comparison.Only SS[13:0] are compared  */
  #define RTC_ALARMSUBSECONDMASK_NONE        0x0F000000U  /*!< SS[14:0] are compared and must match 
                                                                          to activate alarm. */
  /**
    * @}
    */
  
  /** @defgroup RTC_Interrupts_Definitions RTC Interrupts Definitions
    * @{
    */
  #define RTC_IT_TS                         0x00008000U
  #define RTC_IT_WUT                        0x00004000U
  #define RTC_IT_ALRA                       0x00001000U
  #define RTC_IT_TAMP                       0x00000004U /* Used only to Enable the Tamper Interrupt */
  #define RTC_IT_TAMP1                      0x00020000U /*only for RTC_ISR flag check*/
  #define RTC_IT_TAMP2                      0x00040000U /*only for RTC_ISR flag check*/
  #define RTC_IT_TAMP3                      0x00080000U /*only for RTC_ISR flag check*/
  /**
    * @}
    */
  
  /** @defgroup RTC_Flags_Definitions RTC Flags Definitions
    * @{
    */
  #define RTC_FLAG_RECALPF                  0x00010000U
  #define RTC_FLAG_TAMP3F                   0x00008000U
  #define RTC_FLAG_TAMP2F                   0x00004000U
  #define RTC_FLAG_TAMP1F                   0x00002000U
  #define RTC_FLAG_TSOVF                    0x00001000U
  #define RTC_FLAG_TSF                      0x00000800U
  #define RTC_FLAG_WUTF                     0x00000400U
  #define RTC_FLAG_ALRAF                    0x00000100U
  #define RTC_FLAG_INITF                    0x00000040U
  #define RTC_FLAG_RSF                      0x00000020U
  #define RTC_FLAG_INITS                    0x00000010U
  #define RTC_FLAG_SHPF                     0x00000008U
  #define RTC_FLAG_WUTWF                    0x00000004U
  #define RTC_FLAG_ALRAWF                   0x00000001U
  /**
    * @}
    */
  
  /**
    * @}
    */
  
  /* Exported macros ------------------------------------------------------------*/
  /** @defgroup RTC_Exported_Macros RTC Exported Macros
    * @{
    */
  
  /** @brief Reset RTC handle state
    * @param  __HANDLE__ RTC handle.
    * @retval None
    */
  #if (USE_HAL_RTC_REGISTER_CALLBACKS == 1)
  #define __HAL_RTC_RESET_HANDLE_STATE(__HANDLE__) do{\
                                                        (__HANDLE__)->State = HAL_RTC_STATE_RESET;\
                                                        (__HANDLE__)->MspInitCallback = NULL;\
                                                        (__HANDLE__)->MspDeInitCallback = NULL;\
                                                       }while(0u)
  #else
  #define __HAL_RTC_RESET_HANDLE_STATE(__HANDLE__) ((__HANDLE__)->State = HAL_RTC_STATE_RESET)
  #endif /* USE_HAL_RTC_REGISTER_CALLBACKS */
  
  /**
    * @brief  Disable the write protection for RTC registers.
    * @param  __HANDLE__ specifies the RTC handle.
    * @retval None
    */
  #define __HAL_RTC_WRITEPROTECTION_DISABLE(__HANDLE__)             \
                          do{                                       \
                              (__HANDLE__)->Instance->WPR = 0xCAU;   \
                              (__HANDLE__)->Instance->WPR = 0x53U;   \
                            } while(0)
  
  /**
    * @brief  Enable the write protection for RTC registers.
    * @param  __HANDLE__ specifies the RTC handle.
    * @retval None
    */
  #define __HAL_RTC_WRITEPROTECTION_ENABLE(__HANDLE__)              \
                          do{                                       \
                              (__HANDLE__)->Instance->WPR = 0xFFU;   \
                            } while(0)
  
  /**
    * @brief  Enable the RTC ALARMA peripheral.
    * @param  __HANDLE__ specifies the RTC handle.
    * @retval None
    */
  #define __HAL_RTC_ALARMA_ENABLE(__HANDLE__)                           ((__HANDLE__)->Instance->CR |= (RTC_CR_ALRAE))
  
  /**
    * @brief  Disable the RTC ALARMA peripheral.
    * @param  __HANDLE__ specifies the RTC handle.
    * @retval None
    */
  #define __HAL_RTC_ALARMA_DISABLE(__HANDLE__)                          ((__HANDLE__)->Instance->CR &= ~(RTC_CR_ALRAE))
  
  /**
    * @brief  Enable the RTC Alarm interrupt.
    * @param  __HANDLE__ specifies the RTC handle.
    * @param  __INTERRUPT__ specifies the RTC Alarm interrupt sources to be enabled or disabled.
    *          This parameter can be any combination of the following values:
    *             @arg RTC_IT_ALRA: Alarm A interrupt
    * @retval None
    */
  #define __HAL_RTC_ALARM_ENABLE_IT(__HANDLE__, __INTERRUPT__)          ((__HANDLE__)->Instance->CR |= (__INTERRUPT__))
  
  /**
    * @brief  Disable the RTC Alarm interrupt.
    * @param  __HANDLE__ specifies the RTC handle.
    * @param  __INTERRUPT__ specifies the RTC Alarm interrupt sources to be enabled or disabled.
    *         This parameter can be any combination of the following values:
    *            @arg RTC_IT_ALRA: Alarm A interrupt
    * @retval None
    */
  #define __HAL_RTC_ALARM_DISABLE_IT(__HANDLE__, __INTERRUPT__)         ((__HANDLE__)->Instance->CR &= ~(__INTERRUPT__))
  
  /**
    * @brief  Check whether the specified RTC Alarm interrupt has occurred or not.
    * @param  __HANDLE__ specifies the RTC handle.
    * @param  __INTERRUPT__ specifies the RTC Alarm interrupt to check.
    *         This parameter can be:
    *            @arg RTC_IT_ALRA: Alarm A interrupt
    * @retval None
    */
  #define __HAL_RTC_ALARM_GET_IT(__HANDLE__, __INTERRUPT__)  (((((__HANDLE__)->Instance->ISR)& ((__INTERRUPT__)>> 4U)) != RESET)? SET : RESET)
  
  /**
    * @brief  Check whether the specified RTC Alarm interrupt has been enabled or not.
    * @param  __HANDLE__ specifies the RTC handle.
    * @param  __INTERRUPT__ specifies the RTC Alarm interrupt sources to check.
    *         This parameter can be:
    *            @arg RTC_IT_ALRA: Alarm A interrupt
    * @retval None
    */
  #define __HAL_RTC_ALARM_GET_IT_SOURCE(__HANDLE__, __INTERRUPT__)     (((((__HANDLE__)->Instance->CR) & (__INTERRUPT__)) != RESET) ? SET : RESET)
  
  /**
    * @brief  Get the selected RTC Alarm's flag status.
    * @param  __HANDLE__ specifies the RTC handle.
    * @param  __FLAG__ specifies the RTC Alarm Flag sources to check.
    *         This parameter can be:
    *            @arg RTC_FLAG_ALRAF
    *            @arg RTC_FLAG_ALRAWF
    * @retval None
    */
  #define __HAL_RTC_ALARM_GET_FLAG(__HANDLE__, __FLAG__)                (((((__HANDLE__)->Instance->ISR) & (__FLAG__)) != RESET)? SET : RESET)
  
  /**
    * @brief  Clear the RTC Alarm's pending flags.
    * @param  __HANDLE__ specifies the RTC handle.
    * @param  __FLAG__ specifies the RTC Alarm Flag sources to clear.
    *         This parameter can be:
    *            @arg RTC_FLAG_ALRAF
    * @retval None
    */
  #define __HAL_RTC_ALARM_CLEAR_FLAG(__HANDLE__, __FLAG__)   ((__HANDLE__)->Instance->ISR) = (~((__FLAG__) | RTC_ISR_INIT) | ((__HANDLE__)->Instance->ISR & RTC_ISR_INIT))
  
  /**
    * @brief  Enable interrupt on the RTC Alarm associated Exti line.
    * @retval None
    */
  #define __HAL_RTC_ALARM_EXTI_ENABLE_IT()            (EXTI->IMR |= RTC_EXTI_LINE_ALARM_EVENT)
  
  /**
    * @brief  Disable interrupt on the RTC Alarm associated Exti line.
    * @retval None
    */
  #define __HAL_RTC_ALARM_EXTI_DISABLE_IT()           (EXTI->IMR &= ~(RTC_EXTI_LINE_ALARM_EVENT))
  
  /**
    * @brief  Enable event on the RTC Alarm associated Exti line.
    * @retval None.
    */
  #define __HAL_RTC_ALARM_EXTI_ENABLE_EVENT()         (EXTI->EMR |= RTC_EXTI_LINE_ALARM_EVENT)
  
  /**
    * @brief  Disable event on the RTC Alarm associated Exti line.
    * @retval None.
    */
  #define __HAL_RTC_ALARM_EXTI_DISABLE_EVENT()         (EXTI->EMR &= ~(RTC_EXTI_LINE_ALARM_EVENT))
  
  /**
    * @brief  Enable falling edge trigger on the RTC Alarm associated Exti line.
    * @retval None.
    */
  #define __HAL_RTC_ALARM_EXTI_ENABLE_FALLING_EDGE()   (EXTI->FTSR |= RTC_EXTI_LINE_ALARM_EVENT)
  
  /**
    * @brief  Disable falling edge trigger on the RTC Alarm associated Exti line.
    * @retval None.
    */
  #define __HAL_RTC_ALARM_EXTI_DISABLE_FALLING_EDGE()  (EXTI->FTSR &= ~(RTC_EXTI_LINE_ALARM_EVENT))
  
  /**
    * @brief  Enable rising edge trigger on the RTC Alarm associated Exti line.
    * @retval None.
    */
  #define __HAL_RTC_ALARM_EXTI_ENABLE_RISING_EDGE()    (EXTI->RTSR |= RTC_EXTI_LINE_ALARM_EVENT)
  
  /**
    * @brief  Disable rising edge trigger on the RTC Alarm associated Exti line.
    * @retval None.
    */
  #define __HAL_RTC_ALARM_EXTI_DISABLE_RISING_EDGE()   (EXTI->RTSR &= ~(RTC_EXTI_LINE_ALARM_EVENT))
  
  /**
    * @brief  Enable rising & falling edge trigger on the RTC Alarm associated Exti line.
    * @retval None.
    */
  #define __HAL_RTC_ALARM_EXTI_ENABLE_RISING_FALLING_EDGE() __HAL_RTC_ALARM_EXTI_ENABLE_RISING_EDGE();__HAL_RTC_ALARM_EXTI_ENABLE_FALLING_EDGE();
  
  /**
    * @brief  Disable rising & falling edge trigger on the RTC Alarm associated Exti line.
    * @retval None.
    */
  #define __HAL_RTC_ALARM_EXTI_DISABLE_RISING_FALLING_EDGE() __HAL_RTC_ALARM_EXTI_DISABLE_RISING_EDGE();__HAL_RTC_ALARM_EXTI_DISABLE_FALLING_EDGE();
  
  /**
    * @brief Check whether the RTC Alarm associated Exti line interrupt flag is set or not.
    * @retval Line Status.
    */
  #define __HAL_RTC_ALARM_EXTI_GET_FLAG()              (EXTI->PR & RTC_EXTI_LINE_ALARM_EVENT)
  
  /**
    * @brief Clear the RTC Alarm associated Exti line flag.
    * @retval None.
    */
  #define __HAL_RTC_ALARM_EXTI_CLEAR_FLAG()            (EXTI->PR = RTC_EXTI_LINE_ALARM_EVENT)
  
  /**
    * @brief Generate a Software interrupt on RTC Alarm associated Exti line.
    * @retval None.
    */
  #define __HAL_RTC_ALARM_EXTI_GENERATE_SWIT()         (EXTI->SWIER |= RTC_EXTI_LINE_ALARM_EVENT)
  /**
    * @}
    */
  
  /* Include RTC HAL Extended module */
  #include "stm32f0xx_hal_rtc_ex.h"
  
  /* Exported functions --------------------------------------------------------*/
  /** @defgroup RTC_Exported_Functions RTC Exported Functions
    * @{
    */
  
  /** @defgroup RTC_Exported_Functions_Group1 Initialization and de-initialization functions
    * @{
    */
  
  /* Initialization and de-initialization functions  ****************************/
  HAL_StatusTypeDef HAL_RTC_Init(RTC_HandleTypeDef *hrtc);
  HAL_StatusTypeDef HAL_RTC_DeInit(RTC_HandleTypeDef *hrtc);
  void              HAL_RTC_MspInit(RTC_HandleTypeDef *hrtc);
  void              HAL_RTC_MspDeInit(RTC_HandleTypeDef *hrtc);
  
  /* Callbacks Register/UnRegister functions  ***********************************/
  #if (USE_HAL_RTC_REGISTER_CALLBACKS == 1)
  HAL_StatusTypeDef HAL_RTC_RegisterCallback(RTC_HandleTypeDef *hrtc, HAL_RTC_CallbackIDTypeDef CallbackID, pRTC_CallbackTypeDef pCallback);
  HAL_StatusTypeDef HAL_RTC_UnRegisterCallback(RTC_HandleTypeDef *hrtc, HAL_RTC_CallbackIDTypeDef CallbackID);
  #endif /* USE_HAL_RTC_REGISTER_CALLBACKS */
  /**
    * @}
    */
  
  /** @defgroup RTC_Exported_Functions_Group2 RTC Time and Date functions
    * @{
    */
  
  /* RTC Time and Date functions ************************************************/
  HAL_StatusTypeDef HAL_RTC_SetTime(RTC_HandleTypeDef *hrtc, RTC_TimeTypeDef *sTime, uint32_t Format);
  HAL_StatusTypeDef HAL_RTC_GetTime(RTC_HandleTypeDef *hrtc, RTC_TimeTypeDef *sTime, uint32_t Format);
  HAL_StatusTypeDef HAL_RTC_SetDate(RTC_HandleTypeDef *hrtc, RTC_DateTypeDef *sDate, uint32_t Format);
  HAL_StatusTypeDef HAL_RTC_GetDate(RTC_HandleTypeDef *hrtc, RTC_DateTypeDef *sDate, uint32_t Format);
  
  
  /* RTC Daylight Saving Time functions *****************************************/
  void              HAL_RTC_DST_Add1Hour(RTC_HandleTypeDef *hrtc);
  void              HAL_RTC_DST_Sub1Hour(RTC_HandleTypeDef *hrtc);
  void              HAL_RTC_DST_SetStoreOperation(RTC_HandleTypeDef *hrtc);
  void              HAL_RTC_DST_ClearStoreOperation(RTC_HandleTypeDef *hrtc);
  uint32_t          HAL_RTC_DST_ReadStoreOperation(RTC_HandleTypeDef *hrtc);
  /**
    * @}
    */
  
  /** @defgroup RTC_Exported_Functions_Group3 RTC Alarm functions
    * @{
    */
  /* RTC Alarm functions ********************************************************/
  HAL_StatusTypeDef HAL_RTC_SetAlarm(RTC_HandleTypeDef *hrtc, RTC_AlarmTypeDef *sAlarm, uint32_t Format);
  HAL_StatusTypeDef HAL_RTC_SetAlarm_IT(RTC_HandleTypeDef *hrtc, RTC_AlarmTypeDef *sAlarm, uint32_t Format);
  HAL_StatusTypeDef HAL_RTC_DeactivateAlarm(RTC_HandleTypeDef *hrtc, uint32_t Alarm);
  HAL_StatusTypeDef HAL_RTC_GetAlarm(RTC_HandleTypeDef *hrtc, RTC_AlarmTypeDef *sAlarm, uint32_t Alarm, uint32_t Format);
  void              HAL_RTC_AlarmIRQHandler(RTC_HandleTypeDef *hrtc);
  HAL_StatusTypeDef HAL_RTC_PollForAlarmAEvent(RTC_HandleTypeDef *hrtc, uint32_t Timeout);
  void              HAL_RTC_AlarmAEventCallback(RTC_HandleTypeDef *hrtc);
  /**
    * @}
    */
  
  /** @defgroup  RTC_Exported_Functions_Group4 Peripheral Control functions
    * @{
    */
  /* Peripheral Control functions ***********************************************/
  HAL_StatusTypeDef   HAL_RTC_WaitForSynchro(RTC_HandleTypeDef *hrtc);
  /**
    * @}
    */
  
  /** @defgroup RTC_Exported_Functions_Group5 Peripheral State functions
    * @{
    */
  /* Peripheral State functions *************************************************/
  HAL_RTCStateTypeDef HAL_RTC_GetState(RTC_HandleTypeDef *hrtc);
  /**
    * @}
    */
  
  /**
    * @}
    */
  
  /* Private types -------------------------------------------------------------*/
  /* Private variables ---------------------------------------------------------*/
  /* Private constants ---------------------------------------------------------*/
  /** @defgroup RTC_Private_Constants RTC Private Constants
    * @{
    */
  /* Masks Definition */
  #define RTC_TR_RESERVED_MASK    0x007F7F7FU
  #define RTC_DR_RESERVED_MASK    0x00FFFF3FU
  #define RTC_INIT_MASK           0xFFFFFFFFU
  #define RTC_RSF_MASK            0xFFFFFF5FU
  #define RTC_FLAGS_MASK          ((uint32_t) (RTC_FLAG_RECALPF | RTC_FLAG_TAMP3F | RTC_FLAG_TAMP2F | \
                                               RTC_FLAG_TAMP1F| RTC_FLAG_TSOVF | RTC_FLAG_TSF       | \
                                               RTC_FLAG_WUTF  | RTC_FLAG_ALRAF      | \
                                               RTC_FLAG_INITF | RTC_FLAG_RSF | RTC_FLAG_INITS       | \
                                               RTC_FLAG_SHPF | RTC_FLAG_WUTWF | RTC_FLAG_ALRAWF))
  
  #define RTC_TIMEOUT_VALUE       1000U
  
  #define RTC_EXTI_LINE_ALARM_EVENT             ((uint32_t)EXTI_IMR_MR17)  /*!< External interrupt line 17 Connected to the RTC Alarm event */
  /**
    * @}
    */
  
  /* Private macros ------------------------------------------------------------*/
  /** @defgroup RTC_Private_Macros RTC Private Macros
    * @{
    */
  
  /** @defgroup RTC_IS_RTC_Definitions RTC Private macros to check input parameters
    * @{
    */
  #define IS_RTC_HOUR_FORMAT(FORMAT)     (((FORMAT) == RTC_HOURFORMAT_12) || \
                                          ((FORMAT) == RTC_HOURFORMAT_24))
  
  #define IS_RTC_OUTPUT_POL(POL) (((POL) == RTC_OUTPUT_POLARITY_HIGH) || \
                                  ((POL) == RTC_OUTPUT_POLARITY_LOW))
  #define IS_RTC_OUTPUT_TYPE(TYPE) (((TYPE) == RTC_OUTPUT_TYPE_OPENDRAIN) || \
                                    ((TYPE) == RTC_OUTPUT_TYPE_PUSHPULL))
  #define IS_RTC_HOUR12(HOUR)            (((HOUR) > 0U) && ((HOUR) <= 12U))
  #define IS_RTC_HOUR24(HOUR)            ((HOUR) <= 23U)
  #define IS_RTC_ASYNCH_PREDIV(PREDIV)   ((PREDIV) <= 0x7FU)
  #define IS_RTC_SYNCH_PREDIV(PREDIV)    ((PREDIV) <= 0x7FFFU)
  #define IS_RTC_MINUTES(MINUTES)        ((MINUTES) <= 59U)
  #define IS_RTC_SECONDS(SECONDS)        ((SECONDS) <= 59U)
  
  #define IS_RTC_HOURFORMAT12(PM)  (((PM) == RTC_HOURFORMAT12_AM) || \
                                    ((PM) == RTC_HOURFORMAT12_PM))
  
  #define IS_RTC_DAYLIGHT_SAVING(SAVE) (((SAVE) == RTC_DAYLIGHTSAVING_SUB1H) || \
                                        ((SAVE) == RTC_DAYLIGHTSAVING_ADD1H) || \
                                        ((SAVE) == RTC_DAYLIGHTSAVING_NONE))
  #define IS_RTC_STORE_OPERATION(OPERATION) (((OPERATION) == RTC_STOREOPERATION_RESET) || \
                                             ((OPERATION) == RTC_STOREOPERATION_SET))
  #define IS_RTC_FORMAT(FORMAT) (((FORMAT) == RTC_FORMAT_BIN) || ((FORMAT) == RTC_FORMAT_BCD))
  #define IS_RTC_YEAR(YEAR)              ((YEAR) <= 99U)
  #define IS_RTC_MONTH(MONTH)            (((MONTH) >= 1U) && ((MONTH) <= 12U))
  #define IS_RTC_DATE(DATE)              (((DATE) >= 1U) && ((DATE) <= 31U))
  #define IS_RTC_WEEKDAY(WEEKDAY) (((WEEKDAY) == RTC_WEEKDAY_MONDAY)    || \
                                   ((WEEKDAY) == RTC_WEEKDAY_TUESDAY)   || \
                                   ((WEEKDAY) == RTC_WEEKDAY_WEDNESDAY) || \
                                   ((WEEKDAY) == RTC_WEEKDAY_THURSDAY)  || \
                                   ((WEEKDAY) == RTC_WEEKDAY_FRIDAY)    || \
                                   ((WEEKDAY) == RTC_WEEKDAY_SATURDAY)  || \
                                   ((WEEKDAY) == RTC_WEEKDAY_SUNDAY))
  #define IS_RTC_ALARM_DATE_WEEKDAY_DATE(DATE) (((DATE) > 0U) && ((DATE) <= 31U))
  #define IS_RTC_ALARM_DATE_WEEKDAY_WEEKDAY(WEEKDAY) (((WEEKDAY) == RTC_WEEKDAY_MONDAY)    || \
                                                      ((WEEKDAY) == RTC_WEEKDAY_TUESDAY)   || \
                                                      ((WEEKDAY) == RTC_WEEKDAY_WEDNESDAY) || \
                                                      ((WEEKDAY) == RTC_WEEKDAY_THURSDAY)  || \
                                                      ((WEEKDAY) == RTC_WEEKDAY_FRIDAY)    || \
                                                      ((WEEKDAY) == RTC_WEEKDAY_SATURDAY)  || \
                                                      ((WEEKDAY) == RTC_WEEKDAY_SUNDAY))
  #define IS_RTC_ALARM_DATE_WEEKDAY_SEL(SEL) (((SEL) == RTC_ALARMDATEWEEKDAYSEL_DATE) || \
                                              ((SEL) == RTC_ALARMDATEWEEKDAYSEL_WEEKDAY))
  #define IS_RTC_ALARM_MASK(MASK)  (((MASK) & 0x7F7F7F7FU) == (uint32_t)RESET)
  #define IS_RTC_ALARM(ALARM)      ((ALARM) == RTC_ALARM_A)
  #define IS_RTC_ALARM_SUB_SECOND_VALUE(VALUE) ((VALUE) <= 0x00007FFFU)
  
  #define IS_RTC_ALARM_SUB_SECOND_MASK(MASK)   (((MASK) == RTC_ALARMSUBSECONDMASK_ALL) || \
                                                ((MASK) == RTC_ALARMSUBSECONDMASK_SS14_1) || \
                                                ((MASK) == RTC_ALARMSUBSECONDMASK_SS14_2) || \
                                                ((MASK) == RTC_ALARMSUBSECONDMASK_SS14_3) || \
                                                ((MASK) == RTC_ALARMSUBSECONDMASK_SS14_4) || \
                                                ((MASK) == RTC_ALARMSUBSECONDMASK_SS14_5) || \
                                                ((MASK) == RTC_ALARMSUBSECONDMASK_SS14_6) || \
                                                ((MASK) == RTC_ALARMSUBSECONDMASK_SS14_7) || \
                                                ((MASK) == RTC_ALARMSUBSECONDMASK_SS14_8) || \
                                                ((MASK) == RTC_ALARMSUBSECONDMASK_SS14_9) || \
                                                ((MASK) == RTC_ALARMSUBSECONDMASK_SS14_10) || \
                                                ((MASK) == RTC_ALARMSUBSECONDMASK_SS14_11) || \
                                                ((MASK) == RTC_ALARMSUBSECONDMASK_SS14_12) || \
                                                ((MASK) == RTC_ALARMSUBSECONDMASK_SS14_13) || \
                                                ((MASK) == RTC_ALARMSUBSECONDMASK_SS14) || \
                                                ((MASK) == RTC_ALARMSUBSECONDMASK_NONE))
  /**
    * @}
    */
  
  /**
    * @}
    */
  
  /* Private functions ---------------------------------------------------------*/
  /** @defgroup RTC_Private_Functions RTC Private Functions
    * @{
    */
  HAL_StatusTypeDef  RTC_EnterInitMode(RTC_HandleTypeDef *hrtc);
  uint8_t            RTC_ByteToBcd2(uint8_t Value);
  uint8_t            RTC_Bcd2ToByte(uint8_t Value);
  /**
    * @}
    */
  
  /**
    * @}
    */
  
  /**
    * @}
    */
  
  #ifdef __cplusplus
  }
  #endif
  
  #endif /* __STM32F0xx_HAL_RTC_H */
  
  /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
  
  