| /** | |
| ****************************************************************************** | |
| * @file stm32f7xx_hal_iwdg.h | |
| * @author MCD Application Team | |
| * @version V1.0.0 | |
| * @date 12-May-2015 | |
| * @brief Header file of IWDG 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 __STM32F7xx_HAL_IWDG_H | |
| #define __STM32F7xx_HAL_IWDG_H | |
| #ifdef __cplusplus | |
| extern "C" { | |
| #endif | |
| /* Includes ------------------------------------------------------------------*/ | |
| #include "stm32f7xx_hal_def.h" | |
| /** @addtogroup STM32F7xx_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 Enables the IWDG peripheral. | |
| * @param __HANDLE__: IWDG handle | |
| * @retval None | |
| */ | |
| #define __HAL_IWDG_START(__HANDLE__) WRITE_REG((__HANDLE__)->Instance->KR, IWDG_KEY_ENABLE) | |
| /** | |
| * @brief Reloads IWDG counter with value defined in the reload register | |
| * (write access to IWDG_PR and IWDG_RLR registers disabled). | |
| * @param __HANDLE__: IWDG handle | |
| * @retval None | |
| */ | |
| #define __HAL_IWDG_RELOAD_COUNTER(__HANDLE__) WRITE_REG((__HANDLE__)->Instance->KR, IWDG_KEY_RELOAD) | |
| /** | |
| * @brief Gets the selected IWDG's 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 /* __STM32F7xx_HAL_IWDG_H */ | |
| /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |