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/**
******************************************************************************
* @file stm32u0xx_hal_iwdg.h
* @author MCD Application Team
* @brief Header file of IWDG HAL module.
******************************************************************************
* @attention
*
* Copyright (c) 2023 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 STM32U0xx_HAL_IWDG_H
#define STM32U0xx_HAL_IWDG_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32u0xx_hal_def.h"
/** @addtogroup STM32U0xx_HAL_Driver
* @{
*/
/** @defgroup IWDG IWDG
* @{
*/
/* Exported types ------------------------------------------------------------*/
/** @defgroup IWDG_Exported_Types IWDG Exported Types
* @{
*/
/**
* @brief IWDG Init structure definition
*/
typedef struct
{
uint32_t Prescaler; /*!< Select the prescaler of the IWDG.
This parameter can be a value of @ref IWDG_Prescaler */
uint32_t Reload; /*!< Specifies the IWDG down-counter reload value.
This parameter must be a number between Min_Data = 0 and Max_Data = 0x0FFF */
uint32_t Window; /*!< Specifies the window value to be compared to the down-counter.
This parameter must be a number between Min_Data = 0 and Max_Data = 0x0FFF */
uint32_t EWI; /*!< Specifies if IWDG Early Wakeup Interrupt is enable or not and the comparator value.
This parameter must be a number between Min_Data = 0 and Max_Data = 0x0FFF
value 0 means that EWI is disabled */
} IWDG_InitTypeDef;
/**
* @brief IWDG Handle Structure definition
*/
#if (USE_HAL_IWDG_REGISTER_CALLBACKS == 1)
typedef struct __IWDG_HandleTypeDef
#else
typedef struct
#endif /* USE_HAL_IWDG_REGISTER_CALLBACKS */
{
IWDG_TypeDef *Instance; /*!< Register base address */
IWDG_InitTypeDef Init; /*!< IWDG required parameters */
#if (USE_HAL_IWDG_REGISTER_CALLBACKS == 1)
void (* EwiCallback)(struct __IWDG_HandleTypeDef *hiwdg); /*!< IWDG Early WakeUp Interrupt callback */
void (* MspInitCallback)(struct __IWDG_HandleTypeDef *hiwdg); /*!< IWDG Msp Init callback */
#endif /* USE_HAL_IWDG_REGISTER_CALLBACKS */
} IWDG_HandleTypeDef;
#if (USE_HAL_IWDG_REGISTER_CALLBACKS == 1)
/**
* @brief HAL IWDG common Callback ID enumeration definition
*/
typedef enum
{
HAL_IWDG_EWI_CB_ID = 0x00U, /*!< IWDG EWI callback ID */
HAL_IWDG_MSPINIT_CB_ID = 0x01U, /*!< IWDG MspInit callback ID */
} HAL_IWDG_CallbackIDTypeDef;
/**
* @brief HAL IWDG Callback pointer definition
*/
typedef void (*pIWDG_CallbackTypeDef)(IWDG_HandleTypeDef *hppp); /*!< pointer to a IWDG common callback functions */
#endif /* USE_HAL_IWDG_REGISTER_CALLBACKS */
/**
* @}
*/
/* Exported constants --------------------------------------------------------*/
/** @defgroup IWDG_Exported_Constants IWDG Exported Constants
* @{
*/
/** @defgroup IWDG_Prescaler IWDG Prescaler
* @{
*/
#define IWDG_PRESCALER_4 0x00000000u /*!< IWDG prescaler set to 4 */
#define IWDG_PRESCALER_8 IWDG_PR_PR_0 /*!< IWDG prescaler set to 8 */
#define IWDG_PRESCALER_16 IWDG_PR_PR_1 /*!< IWDG prescaler set to 16 */
#define IWDG_PRESCALER_32 (IWDG_PR_PR_1 | IWDG_PR_PR_0) /*!< IWDG prescaler set to 32 */
#define IWDG_PRESCALER_64 IWDG_PR_PR_2 /*!< IWDG prescaler set to 64 */
#define IWDG_PRESCALER_128 (IWDG_PR_PR_2 | IWDG_PR_PR_0) /*!< IWDG prescaler set to 128 */
#define IWDG_PRESCALER_256 (IWDG_PR_PR_2 | IWDG_PR_PR_1) /*!< IWDG prescaler set to 256 */
#define IWDG_PRESCALER_512 (IWDG_PR_PR_2 | IWDG_PR_PR_1 | IWDG_PR_PR_0) /*!< IWDG prescaler set to 512 */
#define IWDG_PRESCALER_1024 IWDG_PR_PR_3 /*!< IWDG prescaler set to 1024 */
/**
* @}
*/
/** @defgroup IWDG_Window_option IWDG Window option
* @{
*/
#define IWDG_WINDOW_DISABLE IWDG_WINR_WIN
/**
* @}
*/
/** @defgroup IWDG_EWI_Mode IWDG Early Wakeup Interrupt Mode
* @{
*/
#define IWDG_EWI_DISABLE 0x00000000u /*!< EWI Disable */
/**
* @}
*/
/** @defgroup IWDG_Active_Status IWDG Active Status
* @{
*/
#define IWDG_STATUS_DISABLE 0x00000000u
#define IWDG_STATUS_ENABLE IWDG_SR_ONF
/**
* @}
*/
/**
* @}
*/
/* Exported macros -----------------------------------------------------------*/
/** @defgroup IWDG_Exported_Macros IWDG Exported Macros
* @{
*/
/**
* @brief Enable the IWDG peripheral.
* @param __HANDLE__ IWDG handle
* @retval None
*/
#define __HAL_IWDG_START(__HANDLE__) WRITE_REG((__HANDLE__)->Instance->KR, IWDG_KEY_ENABLE)
/**
* @brief Reload IWDG counter with value defined in the reload register
* (write access to IWDG_PR, IWDG_RLR, IWDG_WINR and EWCR registers disabled).
* @param __HANDLE__ IWDG handle
* @retval None
*/
#define __HAL_IWDG_RELOAD_COUNTER(__HANDLE__) WRITE_REG((__HANDLE__)->Instance->KR, IWDG_KEY_RELOAD)
/**
* @}
*/
/* Exported functions --------------------------------------------------------*/
/** @defgroup IWDG_Exported_Functions IWDG Exported Functions
* @{
*/
/** @defgroup IWDG_Exported_Functions_Group1 Initialization and Start functions
* @{
*/
/* Initialization/Start functions ********************************************/
HAL_StatusTypeDef HAL_IWDG_Init(IWDG_HandleTypeDef *hiwdg);
void HAL_IWDG_MspInit(IWDG_HandleTypeDef *hiwdg);
/* Callbacks Register/UnRegister functions ***********************************/
#if (USE_HAL_IWDG_REGISTER_CALLBACKS == 1)
HAL_StatusTypeDef HAL_IWDG_RegisterCallback(IWDG_HandleTypeDef *hiwdg, HAL_IWDG_CallbackIDTypeDef CallbackID,
pIWDG_CallbackTypeDef pCallback);
HAL_StatusTypeDef HAL_IWDG_UnRegisterCallback(IWDG_HandleTypeDef *hiwdg, HAL_IWDG_CallbackIDTypeDef CallbackID);
#endif /* USE_HAL_IWDG_REGISTER_CALLBACKS */
/**
* @}
*/
/** @defgroup IWDG_Exported_Functions_Group2 IO operation functions
* @{
*/
/* I/O operation functions ****************************************************/
HAL_StatusTypeDef HAL_IWDG_Refresh(IWDG_HandleTypeDef *hiwdg);
uint32_t HAL_IWDG_GetActiveStatus(const IWDG_HandleTypeDef *hiwdg);
void HAL_IWDG_IRQHandler(IWDG_HandleTypeDef *hiwdg);
void HAL_IWDG_EarlyWakeupCallback(IWDG_HandleTypeDef *hiwdg);
/**
* @}
*/
/**
* @}
*/
/* Private constants ---------------------------------------------------------*/
/** @defgroup IWDG_Private_Constants IWDG Private Constants
* @{
*/
/**
* @brief IWDG Key Register BitMask
*/
#define IWDG_KEY_RELOAD 0x0000AAAAu /*!< IWDG Reload Counter Enable */
#define IWDG_KEY_ENABLE 0x0000CCCCu /*!< IWDG Peripheral Enable */
#define IWDG_KEY_WRITE_ACCESS_ENABLE 0x00005555u /*!< IWDG KR Write Access Enable */
#define IWDG_KEY_WRITE_ACCESS_DISABLE 0x00000000u /*!< IWDG KR Write Access Disable */
/**
* @}
*/
/* Private macros ------------------------------------------------------------*/
/** @defgroup IWDG_Private_Macros IWDG Private Macros
* @{
*/
/**
* @brief Enable write access to IWDG_PR, IWDG_RLR, IWDG_WINR and EWCR registers.
* @param __HANDLE__ IWDG handle
* @retval None
*/
#define IWDG_ENABLE_WRITE_ACCESS(__HANDLE__) WRITE_REG((__HANDLE__)->Instance->KR, IWDG_KEY_WRITE_ACCESS_ENABLE)
/**
* @brief Disable write access to IWDG_PR, IWDG_RLR, IWDG_WINR and EWCR registers.
* @param __HANDLE__ IWDG handle
* @retval None
*/
#define IWDG_DISABLE_WRITE_ACCESS(__HANDLE__) WRITE_REG((__HANDLE__)->Instance->KR, IWDG_KEY_WRITE_ACCESS_DISABLE)
/**
* @brief Check IWDG prescaler value.
* @param __PRESCALER__ IWDG prescaler value
* @retval None
*/
#define IS_IWDG_PRESCALER(__PRESCALER__) (((__PRESCALER__) == IWDG_PRESCALER_4) || \
((__PRESCALER__) == IWDG_PRESCALER_8) || \
((__PRESCALER__) == IWDG_PRESCALER_16) || \
((__PRESCALER__) == IWDG_PRESCALER_32) || \
((__PRESCALER__) == IWDG_PRESCALER_64) || \
((__PRESCALER__) == IWDG_PRESCALER_128)|| \
((__PRESCALER__) == IWDG_PRESCALER_256)|| \
((__PRESCALER__) == IWDG_PRESCALER_512)|| \
((__PRESCALER__) == IWDG_PRESCALER_1024))
/**
* @brief Check IWDG reload value.
* @param __RELOAD__ IWDG reload value
* @retval None
*/
#define IS_IWDG_RELOAD(__RELOAD__) ((__RELOAD__) <= IWDG_RLR_RL)
/**
* @brief Check IWDG window value.
* @param __WINDOW__ IWDG window value
* @retval None
*/
#define IS_IWDG_WINDOW(__WINDOW__) ((__WINDOW__) <= IWDG_WINR_WIN)
/**
* @brief Check IWDG ewi value.
* @param __EWI__ IWDG ewi value
* @retval None
*/
#define IS_IWDG_EWI(__EWI__) ((__EWI__) <= IWDG_EWCR_EWIT)
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
#ifdef __cplusplus
}
#endif
#endif /* STM32U0xx_HAL_IWDG_H */
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