/**
******************************************************************************
* @file stm32f4xx_hal_wwdg.h
* @author MCD Application Team
* @version V1.3.2
* @date 26-June-2015
* @brief Header file of WWDG HAL module.
******************************************************************************
* @attention
*
* <h2><center>© COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/* 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 HAL State Structure definition
*/
typedef enum
{
HAL_WWDG_STATE_RESET = 0x00, /*!< WWDG not yet initialized or disabled */
HAL_WWDG_STATE_READY = 0x01, /*!< WWDG initialized and ready for use */
HAL_WWDG_STATE_BUSY = 0x02, /*!< WWDG internal process is ongoing */
HAL_WWDG_STATE_TIMEOUT = 0x03, /*!< WWDG timeout state */
HAL_WWDG_STATE_ERROR = 0x04 /*!< WWDG error state */
}HAL_WWDG_StateTypeDef;
/**
* @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 lower than Max_Data = 0x80 */
uint32_t Counter; /*!< Specifies the WWDG free-running downcounter value.
This parameter must be a number between Min_Data = 0x40 and Max_Data = 0x7F */
}WWDG_InitTypeDef;
/**
* @brief WWDG handle Structure definition
*/
typedef struct
{
WWDG_TypeDef *Instance; /*!< Register base address */
WWDG_InitTypeDef Init; /*!< WWDG required parameters */
HAL_LockTypeDef Lock; /*!< WWDG locking object */
__IO HAL_WWDG_StateTypeDef State; /*!< WWDG communication state */
}WWDG_HandleTypeDef;
/**
* @}
*/
/* 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 ((uint32_t)0x00000000) /*!< WWDG counter clock = (PCLK1/4096)/1 */
#define WWDG_PRESCALER_2 WWDG_CFR_WDGTB0 /*!< WWDG counter clock = (PCLK1/4096)/2 */
#define WWDG_PRESCALER_4 WWDG_CFR_WDGTB1 /*!< WWDG counter clock = (PCLK1/4096)/4 */
#define WWDG_PRESCALER_8 WWDG_CFR_WDGTB /*!< WWDG counter clock = (PCLK1/4096)/8 */
/**
* @}
*/
/**
* @}
*/
/* Exported macro ------------------------------------------------------------*/
/** @defgroup WWDG_Exported_Macros WWDG Exported Macros
* @{
*/
/** @brief Reset WWDG handle state
* @param __HANDLE__: WWDG handle
* @retval None
*/
#define __HAL_WWDG_RESET_HANDLE_STATE(__HANDLE__) ((__HANDLE__)->State = HAL_WWDG_STATE_RESET)
/**
* @brief Enables the WWDG peripheral.
* @param __HANDLE__: WWDG handle
* @retval None
*/
#define __HAL_WWDG_ENABLE(__HANDLE__) SET_BIT((__HANDLE__)->Instance->CR, WWDG_CR_WDGA)
/**
* @brief Disables the WWDG peripheral.
* @param __HANDLE__: WWDG handle
* @note WARNING: This is a dummy macro for HAL code alignment.
* Once enable, WWDG Peripheral cannot be disabled except by a system reset.
* @retval None
*/
#define __HAL_WWDG_DISABLE(__HANDLE__) /* dummy macro */
/**
* @brief Gets the selected WWDG's it status.
* @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's 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 Enables 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 Disables the WWDG early wakeup interrupt.
* @param __HANDLE__: WWDG handle
* @param __INTERRUPT__: specifies the interrupt to disable.
* This parameter can be one of the following values:
* @arg WWDG_IT_EWI: Early wakeup interrupt
* @note WARNING: This is a dummy macro for HAL code alignment.
* Once enabled this interrupt cannot be disabled except by a system reset.
* @retval None
*/
#define __HAL_WWDG_DISABLE_IT(__HANDLE__, __INTERRUPT__) /* dummy macro */
/**
* @brief Gets the selected WWDG's flag status.
* @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 Clears 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 Checks if the specified WWDG interrupt source is enabled or disabled.
* @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);
HAL_StatusTypeDef HAL_WWDG_DeInit(WWDG_HandleTypeDef *hwwdg);
void HAL_WWDG_MspInit(WWDG_HandleTypeDef *hwwdg);
void HAL_WWDG_MspDeInit(WWDG_HandleTypeDef *hwwdg);
void HAL_WWDG_WakeupCallback(WWDG_HandleTypeDef* hwwdg);
/**
* @}
*/
/** @addtogroup WWDG_Exported_Functions_Group2
* @{
*/
/* I/O operation functions ******************************************************/
HAL_StatusTypeDef HAL_WWDG_Start(WWDG_HandleTypeDef *hwwdg);
HAL_StatusTypeDef HAL_WWDG_Start_IT(WWDG_HandleTypeDef *hwwdg);
HAL_StatusTypeDef HAL_WWDG_Refresh(WWDG_HandleTypeDef *hwwdg, uint32_t Counter);
void HAL_WWDG_IRQHandler(WWDG_HandleTypeDef *hwwdg);
/**
* @}
*/
/** @addtogroup WWDG_Exported_Functions_Group3
* @{
*/
/* Peripheral State functions **************************************************/
HAL_WWDG_StateTypeDef HAL_WWDG_GetState(WWDG_HandleTypeDef *hwwdg);
/**
* @}
*/
/**
* @}
*/
/* Private types -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private constants ---------------------------------------------------------*/
/** @defgroup WWDG_Private_Constants WWDG Private Constants
* @{
*/
/** @defgroup WWDG_BitAddress_AliasRegion WWDG BitAddress
* @brief WWDG registers bit address in the alias region
* @{
*/
/* --- CFR Register ---*/
/* Alias word address of EWI bit */
#define WWDG_CFR_BASE (uint32_t)(WWDG_BASE + 0x04)
/**
* @}
*/
/**
* @}
*/
/* 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__) <= 0x7F)
#define IS_WWDG_COUNTER(__COUNTER__) (((__COUNTER__) >= 0x40) && ((__COUNTER__) <= 0x7F))
/**
* @}
*/
/* Private functions ---------------------------------------------------------*/
/** @defgroup WWDG_Private_Functions WWDG Private Functions
* @{
*/
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
#ifdef __cplusplus
}
#endif
#endif /* __STM32F4xx_HAL_WWDG_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
