view Common/Drivers/STM32F4xx_HAL_Driver/Inc/stm32f4xx_hal_iwdg.h @ 909:6902bb4b6b2e Evo_2_23

Define state of new GPIO out pins: Some new GPIO pins were initialized but not used. This may cause some random activations e.g. of the red debug LED. To avoid this the output levels are set to inactive levels (e.g. to LED_OFF)
author Ideenmodellierer
date Tue, 15 Oct 2024 19:07:19 +0200 (2 months ago)
parents c78bcbd5deda
children
line wrap: on
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/**
  ******************************************************************************
  * @file    stm32f4xx_hal_iwdg.h
  * @author  MCD Application Team
  * @brief   Header file of IWDG HAL module.
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; COPYRIGHT(c) 2017 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_IWDG_H
#define __STM32F4xx_HAL_IWDG_H

#ifdef __cplusplus
 extern "C" {
#endif

/* Includes ------------------------------------------------------------------*/
#include "stm32f4xx_hal_def.h"

/** @addtogroup STM32F4xx_HAL_Driver
  * @{
  */

/** @addtogroup 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 */

} IWDG_InitTypeDef;

/**
  * @brief  IWDG Handle Structure definition
  */
typedef struct
{
  IWDG_TypeDef                 *Instance;  /*!< Register base address    */

  IWDG_InitTypeDef             Init;       /*!< IWDG required parameters */

}IWDG_HandleTypeDef;

/**
  * @}
  */

/* 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 */
/**
  * @}
  */

/**
  * @}
  */

/* 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 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);
/**
  * @}
  */

/** @defgroup IWDG_Exported_Functions_Group2 IO operation functions
  * @{
  */
/* I/O operation functions ****************************************************/
HAL_StatusTypeDef HAL_IWDG_Refresh(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 and IWDG_RLR 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 and IWDG_RLR 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))

/**
  * @brief  Check IWDG reload value.
  * @param  __RELOAD__  IWDG reload value
  * @retval None
  */
#define IS_IWDG_RELOAD(__RELOAD__)            ((__RELOAD__) <= IWDG_RLR_RL)

/**
  * @}
  */

/**
  * @}
  */

/**
  * @}
  */


#ifdef __cplusplus
}
#endif

#endif /* __STM32F4xx_HAL_IWDG_H */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/