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/**
******************************************************************************
* @file stm32f4xx_hal_wwdg.h
* @author MCD Application Team
* @brief Header file of WWDG HAL module.
******************************************************************************
* @attention
*
* Copyright (c) 2016 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.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef STM32F4xx_HAL_WWDG_H
#define STM32F4xx_HAL_WWDG_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32f4xx_hal_def.h"
/** @addtogroup STM32F4xx_HAL_Driver
* @{
*/
/** @addtogroup WWDG
* @{
*/
/* Exported types ------------------------------------------------------------*/
/** @defgroup WWDG_Exported_Types WWDG Exported Types
* @{
*/
/**
* @brief WWDG Init structure definition
*/
typedef struct
{
uint32_t Prescaler; /*!< Specifies the prescaler value of the WWDG.
This parameter can be a value of @ref WWDG_Prescaler */
uint32_t Window; /*!< Specifies the WWDG window value to be compared to the downcounter.
This parameter must be a number Min_Data = 0x40 and Max_Data = 0x7F */
uint32_t Counter; /*!< Specifies the WWDG free-running downcounter value.
This parameter must be a number between Min_Data = 0x40 and Max_Data = 0x7F */
uint32_t EWIMode ; /*!< Specifies if WWDG Early Wakeup Interrupt is enable or not.
This parameter can be a value of @ref WWDG_EWI_Mode */
} WWDG_InitTypeDef;
/**
* @brief WWDG handle Structure definition
*/
#if (USE_HAL_WWDG_REGISTER_CALLBACKS == 1)
typedef struct __WWDG_HandleTypeDef
#else
typedef struct
#endif /* USE_HAL_WWDG_REGISTER_CALLBACKS */
{
WWDG_TypeDef *Instance; /*!< Register base address */
WWDG_InitTypeDef Init; /*!< WWDG required parameters */
#if (USE_HAL_WWDG_REGISTER_CALLBACKS == 1)
void (* EwiCallback)(struct __WWDG_HandleTypeDef *hwwdg); /*!< WWDG Early WakeUp Interrupt callback */
void (* MspInitCallback)(struct __WWDG_HandleTypeDef *hwwdg); /*!< WWDG Msp Init callback */
#endif /* USE_HAL_WWDG_REGISTER_CALLBACKS */
} WWDG_HandleTypeDef;
#if (USE_HAL_WWDG_REGISTER_CALLBACKS == 1)
/**
* @brief HAL WWDG common Callback ID enumeration definition
*/
typedef enum
{
HAL_WWDG_EWI_CB_ID = 0x00U, /*!< WWDG EWI callback ID */
HAL_WWDG_MSPINIT_CB_ID = 0x01U, /*!< WWDG MspInit callback ID */
} HAL_WWDG_CallbackIDTypeDef;
/**
* @brief HAL WWDG Callback pointer definition
*/
typedef void (*pWWDG_CallbackTypeDef)(WWDG_HandleTypeDef *hppp); /*!< pointer to a WWDG common callback functions */
#endif /* USE_HAL_WWDG_REGISTER_CALLBACKS */
/**
* @}
*/
/* Exported constants --------------------------------------------------------*/
/** @defgroup WWDG_Exported_Constants WWDG Exported Constants
* @{
*/
/** @defgroup WWDG_Interrupt_definition WWDG Interrupt definition
* @{
*/
#define WWDG_IT_EWI WWDG_CFR_EWI /*!< Early wakeup interrupt */
/**
* @}
*/
/** @defgroup WWDG_Flag_definition WWDG Flag definition
* @brief WWDG Flag definition
* @{
*/
#define WWDG_FLAG_EWIF WWDG_SR_EWIF /*!< Early wakeup interrupt flag */
/**
* @}
*/
/** @defgroup WWDG_Prescaler WWDG Prescaler
* @{
*/
#define WWDG_PRESCALER_1 0x00000000u /*!< WWDG counter clock = (PCLK1/4096)/1 */
#define WWDG_PRESCALER_2 WWDG_CFR_WDGTB_0 /*!< WWDG counter clock = (PCLK1/4096)/2 */
#define WWDG_PRESCALER_4 WWDG_CFR_WDGTB_1 /*!< WWDG counter clock = (PCLK1/4096)/4 */
#define WWDG_PRESCALER_8 (WWDG_CFR_WDGTB_1 | WWDG_CFR_WDGTB_0) /*!< WWDG counter clock = (PCLK1/4096)/8 */
/**
* @}
*/
/** @defgroup WWDG_EWI_Mode WWDG Early Wakeup Interrupt Mode
* @{
*/
#define WWDG_EWI_DISABLE 0x00000000u /*!< EWI Disable */
#define WWDG_EWI_ENABLE WWDG_CFR_EWI /*!< EWI Enable */
/**
* @}
*/
/**
* @}
*/
/* Private macros ------------------------------------------------------------*/
/** @defgroup WWDG_Private_Macros WWDG Private Macros
* @{
*/
#define IS_WWDG_PRESCALER(__PRESCALER__) (((__PRESCALER__) == WWDG_PRESCALER_1) || \
((__PRESCALER__) == WWDG_PRESCALER_2) || \
((__PRESCALER__) == WWDG_PRESCALER_4) || \
((__PRESCALER__) == WWDG_PRESCALER_8))
#define IS_WWDG_WINDOW(__WINDOW__) (((__WINDOW__) >= WWDG_CFR_W_6) && ((__WINDOW__) <= WWDG_CFR_W))
#define IS_WWDG_COUNTER(__COUNTER__) (((__COUNTER__) >= WWDG_CR_T_6) && ((__COUNTER__) <= WWDG_CR_T))
#define IS_WWDG_EWI_MODE(__MODE__) (((__MODE__) == WWDG_EWI_ENABLE) || \
((__MODE__) == WWDG_EWI_DISABLE))
/**
* @}
*/
/* Exported macros ------------------------------------------------------------*/
/** @defgroup WWDG_Exported_Macros WWDG Exported Macros
* @{
*/
/**
* @brief Enable the WWDG peripheral.
* @param __HANDLE__ WWDG handle
* @retval None
*/
#define __HAL_WWDG_ENABLE(__HANDLE__) SET_BIT((__HANDLE__)->Instance->CR, WWDG_CR_WDGA)
/**
* @brief Enable the WWDG early wakeup interrupt.
* @param __HANDLE__ WWDG handle
* @param __INTERRUPT__ specifies the interrupt to enable.
* This parameter can be one of the following values:
* @arg WWDG_IT_EWI: Early wakeup interrupt
* @note Once enabled this interrupt cannot be disabled except by a system reset.
* @retval None
*/
#define __HAL_WWDG_ENABLE_IT(__HANDLE__, __INTERRUPT__) SET_BIT((__HANDLE__)->Instance->CFR, (__INTERRUPT__))
/**
* @brief Check whether the selected WWDG interrupt has occurred or not.
* @param __HANDLE__ WWDG handle
* @param __INTERRUPT__ specifies the it to check.
* This parameter can be one of the following values:
* @arg WWDG_FLAG_EWIF: Early wakeup interrupt IT
* @retval The new state of WWDG_FLAG (SET or RESET).
*/
#define __HAL_WWDG_GET_IT(__HANDLE__, __INTERRUPT__) __HAL_WWDG_GET_FLAG((__HANDLE__),(__INTERRUPT__))
/** @brief Clear the WWDG interrupt pending bits.
* bits to clear the selected interrupt pending bits.
* @param __HANDLE__ WWDG handle
* @param __INTERRUPT__ specifies the interrupt pending bit to clear.
* This parameter can be one of the following values:
* @arg WWDG_FLAG_EWIF: Early wakeup interrupt flag
*/
#define __HAL_WWDG_CLEAR_IT(__HANDLE__, __INTERRUPT__) __HAL_WWDG_CLEAR_FLAG((__HANDLE__), (__INTERRUPT__))
/**
* @brief Check whether the specified WWDG flag is set or not.
* @param __HANDLE__ WWDG handle
* @param __FLAG__ specifies the flag to check.
* This parameter can be one of the following values:
* @arg WWDG_FLAG_EWIF: Early wakeup interrupt flag
* @retval The new state of WWDG_FLAG (SET or RESET).
*/
#define __HAL_WWDG_GET_FLAG(__HANDLE__, __FLAG__) (((__HANDLE__)->Instance->SR & (__FLAG__)) == (__FLAG__))
/**
* @brief Clear the WWDG's pending flags.
* @param __HANDLE__ WWDG handle
* @param __FLAG__ specifies the flag to clear.
* This parameter can be one of the following values:
* @arg WWDG_FLAG_EWIF: Early wakeup interrupt flag
* @retval None
*/
#define __HAL_WWDG_CLEAR_FLAG(__HANDLE__, __FLAG__) ((__HANDLE__)->Instance->SR = ~(__FLAG__))
/** @brief Check whether the specified WWDG interrupt source is enabled or not.
* @param __HANDLE__ WWDG Handle.
* @param __INTERRUPT__ specifies the WWDG interrupt source to check.
* This parameter can be one of the following values:
* @arg WWDG_IT_EWI: Early Wakeup Interrupt
* @retval state of __INTERRUPT__ (TRUE or FALSE).
*/
#define __HAL_WWDG_GET_IT_SOURCE(__HANDLE__, __INTERRUPT__) (((__HANDLE__)->Instance->CFR\
& (__INTERRUPT__)) == (__INTERRUPT__))
/**
* @}
*/
/* Exported functions --------------------------------------------------------*/
/** @addtogroup WWDG_Exported_Functions
* @{
*/
/** @addtogroup WWDG_Exported_Functions_Group1
* @{
*/
/* Initialization/de-initialization functions **********************************/
HAL_StatusTypeDef HAL_WWDG_Init(WWDG_HandleTypeDef *hwwdg);
void HAL_WWDG_MspInit(WWDG_HandleTypeDef *hwwdg);
/* Callbacks Register/UnRegister functions ***********************************/
#if (USE_HAL_WWDG_REGISTER_CALLBACKS == 1)
HAL_StatusTypeDef HAL_WWDG_RegisterCallback(WWDG_HandleTypeDef *hwwdg, HAL_WWDG_CallbackIDTypeDef CallbackID,
pWWDG_CallbackTypeDef pCallback);
HAL_StatusTypeDef HAL_WWDG_UnRegisterCallback(WWDG_HandleTypeDef *hwwdg, HAL_WWDG_CallbackIDTypeDef CallbackID);
#endif /* USE_HAL_WWDG_REGISTER_CALLBACKS */
/**
* @}
*/
/** @addtogroup WWDG_Exported_Functions_Group2
* @{
*/
/* I/O operation functions ******************************************************/
HAL_StatusTypeDef HAL_WWDG_Refresh(WWDG_HandleTypeDef *hwwdg);
void HAL_WWDG_IRQHandler(WWDG_HandleTypeDef *hwwdg);
void HAL_WWDG_EarlyWakeupCallback(WWDG_HandleTypeDef *hwwdg);
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
#ifdef __cplusplus
}
#endif
#endif /* STM32F4xx_HAL_WWDG_H */
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