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view Common/Drivers/STM32F4xx_HAL_DRIVER_v120/Inc/stm32f4xx_hal_iwdg.h @ 61:f8b7642704dd
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author | heinrichsweikamp |
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date | Sat, 11 Aug 2018 13:57:47 +0200 |
parents | 5f11787b4f42 |
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/** ****************************************************************************** * @file stm32f4xx_hal_iwdg.h * @author MCD Application Team * @version V1.2.0 * @date 26-December-2014 * @brief Header file of IWDG HAL module. ****************************************************************************** * @attention * * <h2><center>© COPYRIGHT(c) 2014 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 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 */ }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_Registers_BitMask IWDG Registers BitMask * @brief IWDG registers bit mask * @{ */ /* --- KR Register ---*/ /* KR register bit mask */ #define IWDG_KEY_RELOAD ((uint32_t)0xAAAA) /*!< IWDG Reload Counter Enable */ #define IWDG_KEY_ENABLE ((uint32_t)0xCCCC) /*!< IWDG Peripheral Enable */ #define IWDG_KEY_WRITE_ACCESS_ENABLE ((uint32_t)0x5555) /*!< IWDG KR Write Access Enable */ #define IWDG_KEY_WRITE_ACCESS_DISABLE ((uint32_t)0x0000) /*!< IWDG KR Write Access Disable */ /** * @} */ /** @defgroup IWDG_Flag_definition 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 */ /** * @} */ /** @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 */ /** * @} */ /** * @} */ /* 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 * @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 macro -------------------------------------------------------------*/ /** @defgroup IWDG_Private_Macros IWDG Private Macros * @{ */ /** * @brief Enables 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 Disables 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) #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)) #define IS_IWDG_RELOAD(__RELOAD__) ((__RELOAD__) <= 0xFFF) /** * @} */ /* Private define ------------------------------------------------------------*/ /** @defgroup IWDG_Private_Constants IWDG Private Constants * @{ */ /** * @} */ /** * @} */ /** * @} */ #ifdef __cplusplus } #endif #endif /* __STM32F4xx_HAL_IWDG_H */ /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/