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| bfc108 | 1 | /** |
| Q | 2 | ****************************************************************************** |
| 3 | * @file stm32f0xx_hal_iwdg.h | |
| 4 | * @author MCD Application Team | |
| 5 | * @brief Header file of IWDG HAL module. | |
| 6 | ****************************************************************************** | |
| 7 | * @attention | |
| 8 | * | |
| 9 | * <h2><center>© COPYRIGHT(c) 2016 STMicroelectronics</center></h2> | |
| 10 | * | |
| 11 | * Redistribution and use in source and binary forms, with or without modification, | |
| 12 | * are permitted provided that the following conditions are met: | |
| 13 | * 1. Redistributions of source code must retain the above copyright notice, | |
| 14 | * this list of conditions and the following disclaimer. | |
| 15 | * 2. Redistributions in binary form must reproduce the above copyright notice, | |
| 16 | * this list of conditions and the following disclaimer in the documentation | |
| 17 | * and/or other materials provided with the distribution. | |
| 18 | * 3. Neither the name of STMicroelectronics nor the names of its contributors | |
| 19 | * may be used to endorse or promote products derived from this software | |
| 20 | * without specific prior written permission. | |
| 21 | * | |
| 22 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
| 23 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 24 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
| 25 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE | |
| 26 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| 27 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | |
| 28 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER | |
| 29 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, | |
| 30 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 31 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 32 | * | |
| 33 | ****************************************************************************** | |
| 34 | */ | |
| 35 | ||
| 36 | /* Define to prevent recursive inclusion -------------------------------------*/ | |
| 37 | #ifndef __STM32F0xx_HAL_IWDG_H | |
| 38 | #define __STM32F0xx_HAL_IWDG_H | |
| 39 | ||
| 40 | #ifdef __cplusplus | |
| 41 | extern "C" { | |
| 42 | #endif | |
| 43 | ||
| 44 | /* Includes ------------------------------------------------------------------*/ | |
| 45 | #include "stm32f0xx_hal_def.h" | |
| 46 | ||
| 47 | /** @addtogroup STM32F0xx_HAL_Driver | |
| 48 | * @{ | |
| 49 | */ | |
| 50 | ||
| 51 | /** @defgroup IWDG IWDG | |
| 52 | * @{ | |
| 53 | */ | |
| 54 | ||
| 55 | /* Exported types ------------------------------------------------------------*/ | |
| 56 | /** @defgroup IWDG_Exported_Types IWDG Exported Types | |
| 57 | * @{ | |
| 58 | */ | |
| 59 | ||
| 60 | /** | |
| 61 | * @brief IWDG Init structure definition | |
| 62 | */ | |
| 63 | typedef struct | |
| 64 | { | |
| 65 | uint32_t Prescaler; /*!< Select the prescaler of the IWDG. | |
| 66 | This parameter can be a value of @ref IWDG_Prescaler */ | |
| 67 | ||
| 68 | uint32_t Reload; /*!< Specifies the IWDG down-counter reload value. | |
| 69 | This parameter must be a number between Min_Data = 0 and Max_Data = 0x0FFF */ | |
| 70 | ||
| 71 | uint32_t Window; /*!< Specifies the window value to be compared to the down-counter. | |
| 72 | This parameter must be a number between Min_Data = 0 and Max_Data = 0x0FFF */ | |
| 73 | ||
| 74 | } IWDG_InitTypeDef; | |
| 75 | ||
| 76 | /** | |
| 77 | * @brief IWDG Handle Structure definition | |
| 78 | */ | |
| 79 | typedef struct | |
| 80 | { | |
| 81 | IWDG_TypeDef *Instance; /*!< Register base address */ | |
| 82 | ||
| 83 | IWDG_InitTypeDef Init; /*!< IWDG required parameters */ | |
| 84 | ||
| 85 | }IWDG_HandleTypeDef; | |
| 86 | ||
| 87 | /** | |
| 88 | * @} | |
| 89 | */ | |
| 90 | ||
| 91 | /* Exported constants --------------------------------------------------------*/ | |
| 92 | /** @defgroup IWDG_Exported_Constants IWDG Exported Constants | |
| 93 | * @{ | |
| 94 | */ | |
| 95 | ||
| 96 | /** @defgroup IWDG_Prescaler IWDG Prescaler | |
| 97 | * @{ | |
| 98 | */ | |
| 99 | #define IWDG_PRESCALER_4 0x00000000U /*!< IWDG prescaler set to 4 */ | |
| 100 | #define IWDG_PRESCALER_8 IWDG_PR_PR_0 /*!< IWDG prescaler set to 8 */ | |
| 101 | #define IWDG_PRESCALER_16 IWDG_PR_PR_1 /*!< IWDG prescaler set to 16 */ | |
| 102 | #define IWDG_PRESCALER_32 (IWDG_PR_PR_1 | IWDG_PR_PR_0) /*!< IWDG prescaler set to 32 */ | |
| 103 | #define IWDG_PRESCALER_64 IWDG_PR_PR_2 /*!< IWDG prescaler set to 64 */ | |
| 104 | #define IWDG_PRESCALER_128 (IWDG_PR_PR_2 | IWDG_PR_PR_0) /*!< IWDG prescaler set to 128 */ | |
| 105 | #define IWDG_PRESCALER_256 (IWDG_PR_PR_2 | IWDG_PR_PR_1) /*!< IWDG prescaler set to 256 */ | |
| 106 | /** | |
| 107 | * @} | |
| 108 | */ | |
| 109 | ||
| 110 | /** @defgroup IWDG_Window_option IWDG Window option | |
| 111 | * @{ | |
| 112 | */ | |
| 113 | #define IWDG_WINDOW_DISABLE IWDG_WINR_WIN | |
| 114 | /** | |
| 115 | * @} | |
| 116 | */ | |
| 117 | ||
| 118 | /** | |
| 119 | * @} | |
| 120 | */ | |
| 121 | ||
| 122 | /* Exported macros -----------------------------------------------------------*/ | |
| 123 | /** @defgroup IWDG_Exported_Macros IWDG Exported Macros | |
| 124 | * @{ | |
| 125 | */ | |
| 126 | ||
| 127 | /** | |
| 128 | * @brief Enable the IWDG peripheral. | |
| 129 | * @param __HANDLE__ IWDG handle | |
| 130 | * @retval None | |
| 131 | */ | |
| 132 | #define __HAL_IWDG_START(__HANDLE__) WRITE_REG((__HANDLE__)->Instance->KR, IWDG_KEY_ENABLE) | |
| 133 | ||
| 134 | /** | |
| 135 | * @brief Reload IWDG counter with value defined in the reload register | |
| 136 | * (write access to IWDG_PR, IWDG_RLR & IWDG_WINR registers disabled). | |
| 137 | * @param __HANDLE__ IWDG handle | |
| 138 | * @retval None | |
| 139 | */ | |
| 140 | #define __HAL_IWDG_RELOAD_COUNTER(__HANDLE__) WRITE_REG((__HANDLE__)->Instance->KR, IWDG_KEY_RELOAD) | |
| 141 | ||
| 142 | /** | |
| 143 | * @} | |
| 144 | */ | |
| 145 | ||
| 146 | /* Exported functions --------------------------------------------------------*/ | |
| 147 | /** @defgroup IWDG_Exported_Functions IWDG Exported Functions | |
| 148 | * @{ | |
| 149 | */ | |
| 150 | ||
| 151 | /** @defgroup IWDG_Exported_Functions_Group1 Initialization and Start functions | |
| 152 | * @{ | |
| 153 | */ | |
| 154 | /* Initialization/Start functions ********************************************/ | |
| 155 | HAL_StatusTypeDef HAL_IWDG_Init(IWDG_HandleTypeDef *hiwdg); | |
| 156 | /** | |
| 157 | * @} | |
| 158 | */ | |
| 159 | ||
| 160 | /** @defgroup IWDG_Exported_Functions_Group2 IO operation functions | |
| 161 | * @{ | |
| 162 | */ | |
| 163 | /* I/O operation functions ****************************************************/ | |
| 164 | HAL_StatusTypeDef HAL_IWDG_Refresh(IWDG_HandleTypeDef *hiwdg); | |
| 165 | /** | |
| 166 | * @} | |
| 167 | */ | |
| 168 | ||
| 169 | /** | |
| 170 | * @} | |
| 171 | */ | |
| 172 | ||
| 173 | /* Private constants ---------------------------------------------------------*/ | |
| 174 | /** @defgroup IWDG_Private_Constants IWDG Private Constants | |
| 175 | * @{ | |
| 176 | */ | |
| 177 | ||
| 178 | /** | |
| 179 | * @brief IWDG Key Register BitMask | |
| 180 | */ | |
| 181 | #define IWDG_KEY_RELOAD 0x0000AAAAU /*!< IWDG Reload Counter Enable */ | |
| 182 | #define IWDG_KEY_ENABLE 0x0000CCCCU /*!< IWDG Peripheral Enable */ | |
| 183 | #define IWDG_KEY_WRITE_ACCESS_ENABLE 0x00005555U /*!< IWDG KR Write Access Enable */ | |
| 184 | #define IWDG_KEY_WRITE_ACCESS_DISABLE 0x00000000U /*!< IWDG KR Write Access Disable */ | |
| 185 | ||
| 186 | /** | |
| 187 | * @} | |
| 188 | */ | |
| 189 | ||
| 190 | /* Private macros ------------------------------------------------------------*/ | |
| 191 | /** @defgroup IWDG_Private_Macros IWDG Private Macros | |
| 192 | * @{ | |
| 193 | */ | |
| 194 | ||
| 195 | /** | |
| 196 | * @brief Enable write access to IWDG_PR, IWDG_RLR and IWDG_WINR registers. | |
| 197 | * @param __HANDLE__ IWDG handle | |
| 198 | * @retval None | |
| 199 | */ | |
| 200 | #define IWDG_ENABLE_WRITE_ACCESS(__HANDLE__) WRITE_REG((__HANDLE__)->Instance->KR, IWDG_KEY_WRITE_ACCESS_ENABLE) | |
| 201 | ||
| 202 | /** | |
| 203 | * @brief Disable write access to IWDG_PR, IWDG_RLR and IWDG_WINR registers. | |
| 204 | * @param __HANDLE__ IWDG handle | |
| 205 | * @retval None | |
| 206 | */ | |
| 207 | #define IWDG_DISABLE_WRITE_ACCESS(__HANDLE__) WRITE_REG((__HANDLE__)->Instance->KR, IWDG_KEY_WRITE_ACCESS_DISABLE) | |
| 208 | ||
| 209 | /** | |
| 210 | * @brief Check IWDG prescaler value. | |
| 211 | * @param __PRESCALER__ IWDG prescaler value | |
| 212 | * @retval None | |
| 213 | */ | |
| 214 | #define IS_IWDG_PRESCALER(__PRESCALER__) (((__PRESCALER__) == IWDG_PRESCALER_4) || \ | |
| 215 | ((__PRESCALER__) == IWDG_PRESCALER_8) || \ | |
| 216 | ((__PRESCALER__) == IWDG_PRESCALER_16) || \ | |
| 217 | ((__PRESCALER__) == IWDG_PRESCALER_32) || \ | |
| 218 | ((__PRESCALER__) == IWDG_PRESCALER_64) || \ | |
| 219 | ((__PRESCALER__) == IWDG_PRESCALER_128)|| \ | |
| 220 | ((__PRESCALER__) == IWDG_PRESCALER_256)) | |
| 221 | ||
| 222 | /** | |
| 223 | * @brief Check IWDG reload value. | |
| 224 | * @param __RELOAD__ IWDG reload value | |
| 225 | * @retval None | |
| 226 | */ | |
| 227 | #define IS_IWDG_RELOAD(__RELOAD__) ((__RELOAD__) <= IWDG_RLR_RL) | |
| 228 | ||
| 229 | /** | |
| 230 | * @brief Check IWDG window value. | |
| 231 | * @param __WINDOW__ IWDG window value | |
| 232 | * @retval None | |
| 233 | */ | |
| 234 | #define IS_IWDG_WINDOW(__WINDOW__) ((__WINDOW__) <= IWDG_WINR_WIN) | |
| 235 | ||
| 236 | /** | |
| 237 | * @} | |
| 238 | */ | |
| 239 | ||
| 240 | /** | |
| 241 | * @} | |
| 242 | */ | |
| 243 | ||
| 244 | /** | |
| 245 | * @} | |
| 246 | */ | |
| 247 | ||
| 248 | ||
| 249 | #ifdef __cplusplus | |
| 250 | } | |
| 251 | #endif | |
| 252 | ||
| 253 | #endif /* __STM32F0xx_HAL_IWDG_H */ | |
| 254 | ||
| 255 | /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ | |
| 256 | ||
