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mbed-os/targets/TARGET_STM/TARGET_STM32F0/device/stm32f0xx_hal_iwdg.h

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/**
******************************************************************************
* @file stm32f0xx_hal_iwdg.h
* @author MCD Application Team
* @version V1.4.0
* @date 27-May-2016
* @brief Header file of IWDG HAL module.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT(c) 2016 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 __STM32F0xx_HAL_IWDG_H
#define __STM32F0xx_HAL_IWDG_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32f0xx_hal_def.h"
/** @addtogroup STM32F0xx_HAL_Driver
* @{
*/
/** @addtogroup IWDG
* @{
*/
/* Exported types ------------------------------------------------------------*/
/** @defgroup IWDG_Exported_Types IWDG Exported Types
* @{
*/
/**
* @brief IWDG HAL State Structure definition
*/
typedef enum
{
HAL_IWDG_STATE_RESET = 0x00, /*!< IWDG not yet initialized or disabled */
HAL_IWDG_STATE_READY = 0x01, /*!< IWDG initialized and ready for use */
HAL_IWDG_STATE_BUSY = 0x02, /*!< IWDG internal process is ongoing */
HAL_IWDG_STATE_TIMEOUT = 0x03, /*!< IWDG timeout state */
HAL_IWDG_STATE_ERROR = 0x04 /*!< IWDG error state */
}HAL_IWDG_StateTypeDef;
/**
* @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 */
} IWDG_InitTypeDef;
/**
* @brief IWDG Handle Structure definition
*/
typedef struct
{
IWDG_TypeDef *Instance; /*!< Register base address */
IWDG_InitTypeDef Init; /*!< IWDG required parameters */
HAL_LockTypeDef Lock; /*!< IWDG Locking object */
__IO HAL_IWDG_StateTypeDef State; /*!< IWDG communication state */
}IWDG_HandleTypeDef;
/**
* @}
*/
/* Exported constants --------------------------------------------------------*/
/** @defgroup IWDG_Exported_Constants IWDG Exported Constants
* @{
*/
/** @defgroup IWDG_Prescaler IWDG Prescaler
* @{
*/
#define IWDG_PRESCALER_4 ((uint8_t)0x00) /*!< IWDG prescaler set to 4 */
#define IWDG_PRESCALER_8 ((uint8_t)(IWDG_PR_PR_0)) /*!< IWDG prescaler set to 8 */
#define IWDG_PRESCALER_16 ((uint8_t)(IWDG_PR_PR_1)) /*!< IWDG prescaler set to 16 */
#define IWDG_PRESCALER_32 ((uint8_t)(IWDG_PR_PR_1 | IWDG_PR_PR_0)) /*!< IWDG prescaler set to 32 */
#define IWDG_PRESCALER_64 ((uint8_t)(IWDG_PR_PR_2)) /*!< IWDG prescaler set to 64 */
#define IWDG_PRESCALER_128 ((uint8_t)(IWDG_PR_PR_2 | IWDG_PR_PR_0)) /*!< IWDG prescaler set to 128 */
#define IWDG_PRESCALER_256 ((uint8_t)(IWDG_PR_PR_2 | IWDG_PR_PR_1)) /*!< IWDG prescaler set to 256 */
/**
* @}
*/
/** @defgroup IWDG_Window IWDG Window
* @{
*/
#define IWDG_WINDOW_DISABLE ((uint32_t)0x00000FFF)
/**
* @}
*/
/**
* @}
*/
/* Exported macros -----------------------------------------------------------*/
/** @defgroup IWDG_Exported_Macros IWDG Exported Macros
* @{
*/
/** @brief Reset IWDG handle state.
* @param __HANDLE__: IWDG handle.
* @retval None
*/
#define __HAL_IWDG_RESET_HANDLE_STATE(__HANDLE__) ((__HANDLE__)->State = HAL_IWDG_STATE_RESET)
/**
* @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.
* @param __HANDLE__: IWDG handle
* @retval None
*/
#define __HAL_IWDG_RELOAD_COUNTER(__HANDLE__) WRITE_REG((__HANDLE__)->Instance->KR, IWDG_KEY_RELOAD)
/**
* @brief Get the selected IWDG flag status.
* @param __HANDLE__: IWDG handle
* @param __FLAG__: specifies the flag to check.
* This parameter can be one of the following values:
* @arg IWDG_FLAG_PVU: Watchdog counter reload value update flag
* @arg IWDG_FLAG_RVU: Watchdog counter prescaler value flag
* @arg IWDG_FLAG_WVU: Watchdog counter window value flag
* @retval The new state of __FLAG__ (TRUE or FALSE).
*/
#define __HAL_IWDG_GET_FLAG(__HANDLE__, __FLAG__) (((__HANDLE__)->Instance->SR & (__FLAG__)) == (__FLAG__))
/**
* @}
*/
/* Exported functions --------------------------------------------------------*/
/** @addtogroup IWDG_Exported_Functions
* @{
*/
/** @addtogroup IWDG_Exported_Functions_Group1
* @{
*/
/* Initialization/de-initialization functions ********************************/
HAL_StatusTypeDef HAL_IWDG_Init(IWDG_HandleTypeDef *hiwdg);
void HAL_IWDG_MspInit(IWDG_HandleTypeDef *hiwdg);
/**
* @}
*/
/** @addtogroup IWDG_Exported_Functions_Group2
* @{
*/
/* I/O operation functions ****************************************************/
HAL_StatusTypeDef HAL_IWDG_Start(IWDG_HandleTypeDef *hiwdg);
HAL_StatusTypeDef HAL_IWDG_Refresh(IWDG_HandleTypeDef *hiwdg);
/**
* @}
*/
/** @addtogroup IWDG_Exported_Functions_Group3
* @{
*/
/* Peripheral State functions ************************************************/
HAL_IWDG_StateTypeDef HAL_IWDG_GetState(IWDG_HandleTypeDef *hiwdg);
/**
* @}
*/
/**
* @}
*/
/* Private constants ---------------------------------------------------------*/
/** @addtogroup IWDG_Private_Defines
* @{
*/
/**
* @brief IWDG Key Register BitMask
*/
#define IWDG_KEY_RELOAD ((uint32_t)0x0000AAAA) /*!< IWDG Reload Counter Enable */
#define IWDG_KEY_ENABLE ((uint32_t)0x0000CCCC) /*!< IWDG Peripheral Enable */
#define IWDG_KEY_WRITE_ACCESS_ENABLE ((uint32_t)0x00005555) /*!< IWDG KR Write Access Enable */
#define IWDG_KEY_WRITE_ACCESS_DISABLE ((uint32_t)0x00000000) /*!< IWDG KR Write Access Disable */
/**
* @brief IWDG Flag definition
*/
#define IWDG_FLAG_PVU ((uint32_t)IWDG_SR_PVU) /*!< Watchdog counter prescaler value update flag */
#define IWDG_FLAG_RVU ((uint32_t)IWDG_SR_RVU) /*!< Watchdog counter reload value update flag */
#define IWDG_FLAG_WVU ((uint32_t)IWDG_SR_WVU) /*!< Watchdog counter window value update flag */
/**
* @}
*/
/* Private macros ------------------------------------------------------------*/
/** @defgroup IWDG_Private_Macro IWDG Private Macros
* @{
*/
/**
* @brief Enables write access to IWDG_PR, IWDG_RLR and IWDG_WINR registers.
* @param __HANDLE__: IWDG handle
* @retval None
*/
#define IWDG_ENABLE_WRITE_ACCESS(__HANDLE__) WRITE_REG((__HANDLE__)->Instance->KR, IWDG_KEY_WRITE_ACCESS_ENABLE)
/**
* @brief Disables write access to IWDG_PR, IWDG_RLR and IWDG_WINR 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__) <= 0xFFF)
/**
* @brief Check IWDG window value.
* @param __WINDOW__: IWDG window value
* @retval None
*/
#define IS_IWDG_WINDOW(__WINDOW__) ((__WINDOW__) <= 0xFFF)
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
#ifdef __cplusplus
}
#endif
#endif /* __STM32F0xx_HAL_IWDG_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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