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| 2 | mjames | 1 | /** |
| 2 | ****************************************************************************** |
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| 3 | * @file stm32f1xx_hal_wwdg.h |
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| 4 | * @author MCD Application Team |
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| 5 | * @brief Header file of WWDG HAL module. |
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| 6 | ****************************************************************************** |
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| 7 | * @attention |
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| 8 | * |
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| 9 | * <h2><center>© COPYRIGHT(c) 2016 STMicroelectronics</center></h2> |
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| 10 | * |
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| 11 | * Redistribution and use in source and binary forms, with or without modification, |
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| 12 | * are permitted provided that the following conditions are met: |
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| 13 | * 1. Redistributions of source code must retain the above copyright notice, |
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| 14 | * this list of conditions and the following disclaimer. |
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| 15 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
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| 16 | * this list of conditions and the following disclaimer in the documentation |
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| 17 | * and/or other materials provided with the distribution. |
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| 18 | * 3. Neither the name of STMicroelectronics nor the names of its contributors |
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| 19 | * may be used to endorse or promote products derived from this software |
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| 20 | * without specific prior written permission. |
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| 21 | * |
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| 22 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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| 23 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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| 24 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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| 25 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
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| 26 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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| 27 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
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| 28 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
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| 29 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
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| 30 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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| 31 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 32 | * |
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| 33 | ****************************************************************************** |
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| 34 | */ |
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| 35 | |||
| 36 | /* Define to prevent recursive inclusion -------------------------------------*/ |
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| 37 | #ifndef __STM32F1xx_HAL_WWDG_H |
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| 38 | #define __STM32F1xx_HAL_WWDG_H |
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| 39 | |||
| 40 | #ifdef __cplusplus |
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| 41 | extern "C" { |
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| 42 | #endif |
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| 43 | |||
| 44 | /* Includes ------------------------------------------------------------------*/ |
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| 45 | #include "stm32f1xx_hal_def.h" |
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| 46 | |||
| 47 | /** @addtogroup STM32F1xx_HAL_Driver |
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| 48 | * @{ |
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| 49 | */ |
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| 50 | |||
| 51 | /** @addtogroup WWDG |
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| 52 | * @{ |
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| 53 | */ |
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| 54 | |||
| 55 | /* Exported types ------------------------------------------------------------*/ |
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| 56 | /** @defgroup WWDG_Exported_Types WWDG Exported Types |
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| 57 | * @{ |
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| 58 | */ |
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| 59 | |||
| 60 | /** |
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| 61 | * @brief WWDG Init structure definition |
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| 62 | */ |
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| 63 | typedef struct |
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| 64 | { |
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| 65 | uint32_t Prescaler; /*!< Specifies the prescaler value of the WWDG. |
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| 66 | This parameter can be a value of @ref WWDG_Prescaler */ |
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| 67 | |||
| 68 | uint32_t Window; /*!< Specifies the WWDG window value to be compared to the downcounter. |
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| 69 | This parameter must be a number Min_Data = 0x40 and Max_Data = 0x7F */ |
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| 70 | |||
| 71 | uint32_t Counter; /*!< Specifies the WWDG free-running downcounter value. |
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| 72 | This parameter must be a number between Min_Data = 0x40 and Max_Data = 0x7F */ |
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| 73 | |||
| 74 | uint32_t EWIMode ; /*!< Specifies if WWDG Early Wakeup Interupt is enable or not. |
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| 75 | This parameter can be a value of @ref WWDG_EWI_Mode */ |
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| 76 | |||
| 77 | } WWDG_InitTypeDef; |
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| 78 | |||
| 79 | /** |
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| 80 | * @brief WWDG handle Structure definition |
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| 81 | */ |
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| 82 | typedef struct |
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| 83 | { |
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| 84 | WWDG_TypeDef *Instance; /*!< Register base address */ |
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| 85 | |||
| 86 | WWDG_InitTypeDef Init; /*!< WWDG required parameters */ |
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| 87 | |||
| 88 | } WWDG_HandleTypeDef; |
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| 89 | /** |
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| 90 | * @} |
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| 91 | */ |
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| 92 | |||
| 93 | /* Exported constants --------------------------------------------------------*/ |
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| 94 | |||
| 95 | /** @defgroup WWDG_Exported_Constants WWDG Exported Constants |
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| 96 | * @{ |
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| 97 | */ |
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| 98 | |||
| 99 | /** @defgroup WWDG_Interrupt_definition WWDG Interrupt definition |
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| 100 | * @{ |
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| 101 | */ |
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| 102 | #define WWDG_IT_EWI WWDG_CFR_EWI /*!< Early wakeup interrupt */ |
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| 103 | /** |
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| 104 | * @} |
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| 105 | */ |
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| 106 | |||
| 107 | /** @defgroup WWDG_Flag_definition WWDG Flag definition |
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| 108 | * @brief WWDG Flag definition |
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| 109 | * @{ |
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| 110 | */ |
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| 111 | #define WWDG_FLAG_EWIF WWDG_SR_EWIF /*!< Early wakeup interrupt flag */ |
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| 112 | /** |
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| 113 | * @} |
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| 114 | */ |
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| 115 | |||
| 116 | /** @defgroup WWDG_Prescaler WWDG Prescaler |
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| 117 | * @{ |
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| 118 | */ |
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| 119 | #define WWDG_PRESCALER_1 0x00000000U /*!< WWDG counter clock = (PCLK1/4096)/1 */ |
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| 120 | #define WWDG_PRESCALER_2 WWDG_CFR_WDGTB0 /*!< WWDG counter clock = (PCLK1/4096)/2 */ |
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| 121 | #define WWDG_PRESCALER_4 WWDG_CFR_WDGTB1 /*!< WWDG counter clock = (PCLK1/4096)/4 */ |
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| 122 | #define WWDG_PRESCALER_8 WWDG_CFR_WDGTB /*!< WWDG counter clock = (PCLK1/4096)/8 */ |
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| 123 | /** |
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| 124 | * @} |
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| 125 | */ |
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| 126 | |||
| 127 | /** @defgroup WWDG_EWI_Mode WWDG Early Wakeup Interrupt Mode |
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| 128 | * @{ |
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| 129 | */ |
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| 130 | #define WWDG_EWI_DISABLE 0x00000000U /*!< EWI Disable */ |
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| 131 | #define WWDG_EWI_ENABLE WWDG_CFR_EWI /*!< EWI Enable */ |
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| 132 | /** |
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| 133 | * @} |
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| 134 | */ |
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| 135 | |||
| 136 | /** |
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| 137 | * @} |
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| 138 | */ |
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| 139 | |||
| 140 | /* Private macros ------------------------------------------------------------*/ |
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| 141 | |||
| 142 | /** @defgroup WWDG_Private_Macros WWDG Private Macros |
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| 143 | * @{ |
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| 144 | */ |
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| 145 | #define IS_WWDG_PRESCALER(__PRESCALER__) (((__PRESCALER__) == WWDG_PRESCALER_1) || \ |
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| 146 | ((__PRESCALER__) == WWDG_PRESCALER_2) || \ |
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| 147 | ((__PRESCALER__) == WWDG_PRESCALER_4) || \ |
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| 148 | ((__PRESCALER__) == WWDG_PRESCALER_8)) |
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| 149 | |||
| 150 | #define IS_WWDG_WINDOW(__WINDOW__) (((__WINDOW__) >= WWDG_CFR_W_6) && ((__WINDOW__) <= WWDG_CFR_W)) |
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| 151 | |||
| 152 | #define IS_WWDG_COUNTER(__COUNTER__) (((__COUNTER__) >= WWDG_CR_T_6) && ((__COUNTER__) <= WWDG_CR_T)) |
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| 153 | |||
| 154 | #define IS_WWDG_EWI_MODE(__MODE__) (((__MODE__) == WWDG_EWI_ENABLE) || \ |
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| 155 | ((__MODE__) == WWDG_EWI_DISABLE)) |
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| 156 | /** |
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| 157 | * @} |
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| 158 | */ |
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| 159 | |||
| 160 | |||
| 161 | /* Exported macros ------------------------------------------------------------*/ |
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| 162 | |||
| 163 | /** @defgroup WWDG_Exported_Macros WWDG Exported Macros |
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| 164 | * @{ |
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| 165 | */ |
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| 166 | |||
| 167 | /** |
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| 168 | * @brief Enables the WWDG peripheral. |
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| 169 | * @param __HANDLE__: WWDG handle |
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| 170 | * @retval None |
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| 171 | */ |
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| 172 | #define __HAL_WWDG_ENABLE(__HANDLE__) SET_BIT((__HANDLE__)->Instance->CR, WWDG_CR_WDGA) |
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| 173 | |||
| 174 | /** |
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| 175 | * @brief Enables the WWDG early wakeup interrupt. |
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| 176 | * @param __HANDLE__: WWDG handle |
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| 177 | * @param __INTERRUPT__ specifies the interrupt to enable. |
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| 178 | * This parameter can be one of the following values: |
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| 179 | * @arg WWDG_IT_EWI: Early wakeup interrupt |
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| 180 | * @note Once enabled this interrupt cannot be disabled except by a system reset. |
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| 181 | * @retval None |
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| 182 | */ |
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| 183 | #define __HAL_WWDG_ENABLE_IT(__HANDLE__, __INTERRUPT__) SET_BIT((__HANDLE__)->Instance->CFR, (__INTERRUPT__)) |
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| 184 | |||
| 185 | /** |
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| 186 | * @brief Checks whether the selected WWDG interrupt has occurred or not. |
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| 187 | * @param __HANDLE__ WWDG handle |
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| 188 | * @param __INTERRUPT__ specifies the it to check. |
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| 189 | * This parameter can be one of the following values: |
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| 190 | * @arg WWDG_FLAG_EWIF: Early wakeup interrupt IT |
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| 191 | * @retval The new state of WWDG_FLAG (SET or RESET). |
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| 192 | */ |
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| 193 | #define __HAL_WWDG_GET_IT(__HANDLE__, __INTERRUPT__) __HAL_WWDG_GET_FLAG((__HANDLE__),(__INTERRUPT__)) |
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| 194 | |||
| 195 | /** @brief Clear the WWDG's interrupt pending bits |
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| 196 | * bits to clear the selected interrupt pending bits. |
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| 197 | * @param __HANDLE__: WWDG handle |
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| 198 | * @param __INTERRUPT__: specifies the interrupt pending bit to clear. |
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| 199 | * This parameter can be one of the following values: |
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| 200 | * @arg WWDG_FLAG_EWIF: Early wakeup interrupt flag |
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| 201 | */ |
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| 202 | #define __HAL_WWDG_CLEAR_IT(__HANDLE__, __INTERRUPT__) __HAL_WWDG_CLEAR_FLAG((__HANDLE__), (__INTERRUPT__)) |
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| 203 | |||
| 204 | /** |
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| 205 | * @brief Check whether the specified WWDG flag is set or not. |
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| 206 | * @param __HANDLE__ WWDG handle |
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| 207 | * @param __FLAG__ specifies the flag to check. |
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| 208 | * This parameter can be one of the following values: |
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| 209 | * @arg WWDG_FLAG_EWIF: Early wakeup interrupt flag |
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| 210 | * @retval The new state of WWDG_FLAG (SET or RESET). |
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| 211 | */ |
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| 212 | #define __HAL_WWDG_GET_FLAG(__HANDLE__, __FLAG__) (((__HANDLE__)->Instance->SR & (__FLAG__)) == (__FLAG__)) |
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| 213 | |||
| 214 | /** |
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| 215 | * @brief Clears the WWDG's pending flags. |
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| 216 | * @param __HANDLE__: WWDG handle |
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| 217 | * @param __FLAG__: specifies the flag to clear. |
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| 218 | * This parameter can be one of the following values: |
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| 219 | * @arg WWDG_FLAG_EWIF: Early wakeup interrupt flag |
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| 220 | * @retval None |
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| 221 | */ |
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| 222 | #define __HAL_WWDG_CLEAR_FLAG(__HANDLE__, __FLAG__) (((__HANDLE__)->Instance->SR) = ~(__FLAG__)) |
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| 223 | |||
| 224 | /** @brief Checks if the specified WWDG interrupt source is enabled or disabled. |
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| 225 | * @param __HANDLE__: WWDG Handle. |
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| 226 | * @param __INTERRUPT__: specifies the WWDG interrupt source to check. |
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| 227 | * This parameter can be one of the following values: |
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| 228 | * @arg WWDG_IT_EWI: Early Wakeup Interrupt |
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| 229 | * @retval state of __INTERRUPT__ (TRUE or FALSE). |
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| 230 | */ |
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| 231 | #define __HAL_WWDG_GET_IT_SOURCE(__HANDLE__, __INTERRUPT__) (((__HANDLE__)->Instance->CFR & (__INTERRUPT__)) == (__INTERRUPT__)) |
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| 232 | |||
| 233 | /** |
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| 234 | * @} |
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| 235 | */ |
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| 236 | |||
| 237 | /* Exported functions --------------------------------------------------------*/ |
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| 238 | /** @addtogroup WWDG_Exported_Functions |
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| 239 | * @{ |
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| 240 | */ |
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| 241 | |||
| 242 | /** @addtogroup WWDG_Exported_Functions_Group1 |
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| 243 | * @{ |
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| 244 | */ |
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| 245 | /* Initialization/de-initialization functions **********************************/ |
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| 246 | HAL_StatusTypeDef HAL_WWDG_Init(WWDG_HandleTypeDef *hwwdg); |
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| 247 | void HAL_WWDG_MspInit(WWDG_HandleTypeDef *hwwdg); |
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| 248 | /** |
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| 249 | * @} |
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| 250 | */ |
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| 251 | |||
| 252 | /** @addtogroup WWDG_Exported_Functions_Group2 |
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| 253 | * @{ |
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| 254 | */ |
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| 255 | /* I/O operation functions ******************************************************/ |
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| 256 | HAL_StatusTypeDef HAL_WWDG_Refresh(WWDG_HandleTypeDef *hwwdg); |
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| 257 | void HAL_WWDG_IRQHandler(WWDG_HandleTypeDef *hwwdg); |
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| 258 | void HAL_WWDG_EarlyWakeupCallback(WWDG_HandleTypeDef *hwwdg); |
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| 259 | /** |
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| 260 | * @} |
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| 261 | */ |
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| 262 | |||
| 263 | /** |
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| 264 | * @} |
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| 265 | */ |
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| 266 | |||
| 267 | /** |
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| 268 | * @} |
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| 269 | */ |
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| 270 | |||
| 271 | /** |
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| 272 | * @} |
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| 273 | */ |
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| 274 | |||
| 275 | #ifdef __cplusplus |
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| 276 | } |
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| 277 | #endif |
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| 278 | |||
| 279 | #endif /* __STM32F1xx_HAL_WWDG_H */ |
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| 280 | |||
| 281 | /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |