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HAL_L476/stm32l4xx_hal_wwdg.c@1:d0dfbce63a89, 2017-02-24 (annotated)

Committer:
elmot
Date:
Fri Feb 24 21:13:56 2017 +0000
Revision:
1:d0dfbce63a89
Ready-to-copy

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elmot 1:d0dfbce63a89 1 /**
elmot 1:d0dfbce63a89 2 ******************************************************************************
elmot 1:d0dfbce63a89 3 * @file stm32l4xx_hal_wwdg.c
elmot 1:d0dfbce63a89 4 * @author MCD Application Team
elmot 1:d0dfbce63a89 5 * @version V1.5.1
elmot 1:d0dfbce63a89 6 * @date 31-May-2016
elmot 1:d0dfbce63a89 7 * @brief WWDG HAL module driver.
elmot 1:d0dfbce63a89 8 * This file provides firmware functions to manage the following
elmot 1:d0dfbce63a89 9 * functionalities of the Window Watchdog (WWDG) peripheral:
elmot 1:d0dfbce63a89 10 * + Initialization and Configuration function
elmot 1:d0dfbce63a89 11 * + IO operation functions
elmot 1:d0dfbce63a89 12 @verbatim
elmot 1:d0dfbce63a89 13 ==============================================================================
elmot 1:d0dfbce63a89 14 ##### WWDG specific features #####
elmot 1:d0dfbce63a89 15 ==============================================================================
elmot 1:d0dfbce63a89 16 [..]
elmot 1:d0dfbce63a89 17 Once enabled the WWDG generates a system reset on expiry of a programmed
elmot 1:d0dfbce63a89 18 time period, unless the program refreshes the counter (T[6;0] downcounter)
elmot 1:d0dfbce63a89 19 before reaching 0x3F value (i.e. a reset is generated when the counter
elmot 1:d0dfbce63a89 20 value rolls over from 0x40 to 0x3F).
elmot 1:d0dfbce63a89 21
elmot 1:d0dfbce63a89 22 (+) An MCU reset is also generated if the counter value is refreshed
elmot 1:d0dfbce63a89 23 before the counter has reached the refresh window value. This
elmot 1:d0dfbce63a89 24 implies that the counter must be refreshed in a limited window.
elmot 1:d0dfbce63a89 25
elmot 1:d0dfbce63a89 26 (+) Once enabled the WWDG cannot be disabled except by a system reset.
elmot 1:d0dfbce63a89 27
elmot 1:d0dfbce63a89 28 (+) WWDGRST flag in RCC_CSR register informs when a WWDG reset has
elmot 1:d0dfbce63a89 29 occurred (check available with __HAL_RCC_GET_FLAG(RCC_FLAG_WWDGRST)).
elmot 1:d0dfbce63a89 30
elmot 1:d0dfbce63a89 31 (+) The WWDG downcounter input clock is derived from the APB clock divided
elmot 1:d0dfbce63a89 32 by a programmable prescaler.
elmot 1:d0dfbce63a89 33
elmot 1:d0dfbce63a89 34 (+) WWDG downcounter clock (Hz) = PCLK1 / (4096 * Prescaler)
elmot 1:d0dfbce63a89 35
elmot 1:d0dfbce63a89 36 (+) WWDG timeout (ms) = (1000 * (T[5;0] + 1)) / (WWDG downcounter clock)
elmot 1:d0dfbce63a89 37 where T[5;0] are the lowest 6 bits of downcounter.
elmot 1:d0dfbce63a89 38
elmot 1:d0dfbce63a89 39 (+) WWDG Counter refresh is allowed between the following limits :
elmot 1:d0dfbce63a89 40 (++) min time (ms) = (1000 * (T[5;0] - Window)) / (WWDG downcounter clock)
elmot 1:d0dfbce63a89 41 (++) max time (ms) = (1000 * (T[5;0] - 0x40)) / (WWDG downcounter clock)
elmot 1:d0dfbce63a89 42
elmot 1:d0dfbce63a89 43 (+) Min-max timeout value @80 MHz(PCLK1): ~51.2 us / ~26.22 ms
elmot 1:d0dfbce63a89 44
elmot 1:d0dfbce63a89 45 (+) The Early Wakeup Interrupt (EWI) can be used if specific safety
elmot 1:d0dfbce63a89 46 operations or data logging must be performed before the actual reset is
elmot 1:d0dfbce63a89 47 generated. When the downcounter reaches the value 0x40, an EWI interrupt
elmot 1:d0dfbce63a89 48 is generated and the corresponding interrupt service routine (ISR) can
elmot 1:d0dfbce63a89 49 be used to trigger specific actions (such as communications or data
elmot 1:d0dfbce63a89 50 logging), before resetting the device.
elmot 1:d0dfbce63a89 51 In some applications, the EWI interrupt can be used to manage a software
elmot 1:d0dfbce63a89 52 system check and/or system recovery/graceful degradation, without
elmot 1:d0dfbce63a89 53 generating a WWDG reset. In this case, the corresponding interrupt
elmot 1:d0dfbce63a89 54 service routine (ISR) should reload the WWDG counter to avoid the WWDG
elmot 1:d0dfbce63a89 55 reset, then trigger the required actions.
elmot 1:d0dfbce63a89 56 Note:When the EWI interrupt cannot be served, e.g. due to a system lock
elmot 1:d0dfbce63a89 57 in a higher priority task, the WWDG reset will eventually be generated.
elmot 1:d0dfbce63a89 58
elmot 1:d0dfbce63a89 59 (+) Debug mode : When the microcontroller enters debug mode (core halted),
elmot 1:d0dfbce63a89 60 the WWDG counter either continues to work normally or stops, depending
elmot 1:d0dfbce63a89 61 on DBG_WWDG_STOP configuration bit in DBG module, accessible through
elmot 1:d0dfbce63a89 62 __HAL_DBGMCU_FREEZE_WWDG() and __HAL_DBGMCU_UNFREEZE_WWDG() macros
elmot 1:d0dfbce63a89 63
elmot 1:d0dfbce63a89 64 ##### How to use this driver #####
elmot 1:d0dfbce63a89 65 ==============================================================================
elmot 1:d0dfbce63a89 66 [..]
elmot 1:d0dfbce63a89 67 (+) Enable WWDG APB1 clock using __HAL_RCC_WWDG_CLK_ENABLE().
elmot 1:d0dfbce63a89 68
elmot 1:d0dfbce63a89 69 (+) Set the WWDG prescaler, refresh window, counter value and Early Wakeup
elmot 1:d0dfbce63a89 70 Interrupt mode using using HAL_WWDG_Init() function.
elmot 1:d0dfbce63a89 71 This enables WWDG peripheral and the downcounter starts downcounting
elmot 1:d0dfbce63a89 72 from given counter value.
elmot 1:d0dfbce63a89 73 Init function can be called again to modify all watchdog parameters,
elmot 1:d0dfbce63a89 74 however if EWI mode has been set once, it can't be clear until next
elmot 1:d0dfbce63a89 75 reset.
elmot 1:d0dfbce63a89 76
elmot 1:d0dfbce63a89 77 (+) The application program must refresh the WWDG counter at regular
elmot 1:d0dfbce63a89 78 intervals during normal operation to prevent an MCU reset using
elmot 1:d0dfbce63a89 79 HAL_WWDG_Refresh() function. This operation must occur only when
elmot 1:d0dfbce63a89 80 the counter is lower than the window value already programmed.
elmot 1:d0dfbce63a89 81
elmot 1:d0dfbce63a89 82 (+) if Early Wakeup Interrupt mode is enable an interrupt is generated when
elmot 1:d0dfbce63a89 83 the counter reaches 0x40. User can add his own code in weak function
elmot 1:d0dfbce63a89 84 HAL_WWDG_EarlyWakeupCallback().
elmot 1:d0dfbce63a89 85
elmot 1:d0dfbce63a89 86 *** WWDG HAL driver macros list ***
elmot 1:d0dfbce63a89 87 ==================================
elmot 1:d0dfbce63a89 88 [..]
elmot 1:d0dfbce63a89 89 Below the list of most used macros in WWDG HAL driver.
elmot 1:d0dfbce63a89 90
elmot 1:d0dfbce63a89 91 (+) __HAL_WWDG_GET_IT_SOURCE: Check the selected WWDG's interrupt source.
elmot 1:d0dfbce63a89 92 (+) __HAL_WWDG_GET_FLAG: Get the selected WWDG's flag status.
elmot 1:d0dfbce63a89 93 (+) __HAL_WWDG_CLEAR_FLAG: Clear the WWDG's pending flags.
elmot 1:d0dfbce63a89 94
elmot 1:d0dfbce63a89 95 @endverbatim
elmot 1:d0dfbce63a89 96 ******************************************************************************
elmot 1:d0dfbce63a89 97 * @attention
elmot 1:d0dfbce63a89 98 *
elmot 1:d0dfbce63a89 99 * <h2><center>&copy; COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
elmot 1:d0dfbce63a89 100 *
elmot 1:d0dfbce63a89 101 * Redistribution and use in source and binary forms, with or without modification,
elmot 1:d0dfbce63a89 102 * are permitted provided that the following conditions are met:
elmot 1:d0dfbce63a89 103 * 1. Redistributions of source code must retain the above copyright notice,
elmot 1:d0dfbce63a89 104 * this list of conditions and the following disclaimer.
elmot 1:d0dfbce63a89 105 * 2. Redistributions in binary form must reproduce the above copyright notice,
elmot 1:d0dfbce63a89 106 * this list of conditions and the following disclaimer in the documentation
elmot 1:d0dfbce63a89 107 * and/or other materials provided with the distribution.
elmot 1:d0dfbce63a89 108 * 3. Neither the name of STMicroelectronics nor the names of its contributors
elmot 1:d0dfbce63a89 109 * may be used to endorse or promote products derived from this software
elmot 1:d0dfbce63a89 110 * without specific prior written permission.
elmot 1:d0dfbce63a89 111 *
elmot 1:d0dfbce63a89 112 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
elmot 1:d0dfbce63a89 113 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
elmot 1:d0dfbce63a89 114 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
elmot 1:d0dfbce63a89 115 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
elmot 1:d0dfbce63a89 116 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
elmot 1:d0dfbce63a89 117 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
elmot 1:d0dfbce63a89 118 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
elmot 1:d0dfbce63a89 119 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
elmot 1:d0dfbce63a89 120 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
elmot 1:d0dfbce63a89 121 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
elmot 1:d0dfbce63a89 122 *
elmot 1:d0dfbce63a89 123 ******************************************************************************
elmot 1:d0dfbce63a89 124 */
elmot 1:d0dfbce63a89 125
elmot 1:d0dfbce63a89 126 /* Includes ------------------------------------------------------------------*/
elmot 1:d0dfbce63a89 127 #include "stm32l4xx_hal.h"
elmot 1:d0dfbce63a89 128
elmot 1:d0dfbce63a89 129 /** @addtogroup STM32L4xx_HAL_Driver
elmot 1:d0dfbce63a89 130 * @{
elmot 1:d0dfbce63a89 131 */
elmot 1:d0dfbce63a89 132
elmot 1:d0dfbce63a89 133 #ifdef HAL_WWDG_MODULE_ENABLED
elmot 1:d0dfbce63a89 134 /** @defgroup WWDG WWDG
elmot 1:d0dfbce63a89 135 * @brief WWDG HAL module driver.
elmot 1:d0dfbce63a89 136 * @{
elmot 1:d0dfbce63a89 137 */
elmot 1:d0dfbce63a89 138
elmot 1:d0dfbce63a89 139 /* Private typedef -----------------------------------------------------------*/
elmot 1:d0dfbce63a89 140 /* Private define ------------------------------------------------------------*/
elmot 1:d0dfbce63a89 141 /* Private macro -------------------------------------------------------------*/
elmot 1:d0dfbce63a89 142 /* Private variables ---------------------------------------------------------*/
elmot 1:d0dfbce63a89 143 /* Private function prototypes -----------------------------------------------*/
elmot 1:d0dfbce63a89 144 /* Exported functions --------------------------------------------------------*/
elmot 1:d0dfbce63a89 145
elmot 1:d0dfbce63a89 146 /** @defgroup WWDG_Exported_Functions WWDG Exported Functions
elmot 1:d0dfbce63a89 147 * @{
elmot 1:d0dfbce63a89 148 */
elmot 1:d0dfbce63a89 149
elmot 1:d0dfbce63a89 150 /** @defgroup WWDG_Exported_Functions_Group1 Initialization and Configuration functions
elmot 1:d0dfbce63a89 151 * @brief Initialization and Configuration functions.
elmot 1:d0dfbce63a89 152 *
elmot 1:d0dfbce63a89 153 @verbatim
elmot 1:d0dfbce63a89 154 ==============================================================================
elmot 1:d0dfbce63a89 155 ##### Initialization and Configuration functions #####
elmot 1:d0dfbce63a89 156 ==============================================================================
elmot 1:d0dfbce63a89 157 [..]
elmot 1:d0dfbce63a89 158 This section provides functions allowing to:
elmot 1:d0dfbce63a89 159 (+) Initialize and start the WWDG according to the specified parameters
elmot 1:d0dfbce63a89 160 in the WWDG_InitTypeDef of associated handle.
elmot 1:d0dfbce63a89 161 (+) Initialize the WWDG MSP.
elmot 1:d0dfbce63a89 162
elmot 1:d0dfbce63a89 163 @endverbatim
elmot 1:d0dfbce63a89 164 * @{
elmot 1:d0dfbce63a89 165 */
elmot 1:d0dfbce63a89 166
elmot 1:d0dfbce63a89 167 /**
elmot 1:d0dfbce63a89 168 * @brief Initialize the WWDG according to the specified.
elmot 1:d0dfbce63a89 169 * parameters in the WWDG_InitTypeDef of associated handle.
elmot 1:d0dfbce63a89 170 * @param hwwdg pointer to a WWDG_HandleTypeDef structure that contains
elmot 1:d0dfbce63a89 171 * the configuration information for the specified WWDG module.
elmot 1:d0dfbce63a89 172 * @retval HAL status
elmot 1:d0dfbce63a89 173 */
elmot 1:d0dfbce63a89 174 HAL_StatusTypeDef HAL_WWDG_Init(WWDG_HandleTypeDef *hwwdg)
elmot 1:d0dfbce63a89 175 {
elmot 1:d0dfbce63a89 176 /* Check the WWDG handle allocation */
elmot 1:d0dfbce63a89 177 if(hwwdg == NULL)
elmot 1:d0dfbce63a89 178 {
elmot 1:d0dfbce63a89 179 return HAL_ERROR;
elmot 1:d0dfbce63a89 180 }
elmot 1:d0dfbce63a89 181
elmot 1:d0dfbce63a89 182 /* Check the parameters */
elmot 1:d0dfbce63a89 183 assert_param(IS_WWDG_ALL_INSTANCE(hwwdg->Instance));
elmot 1:d0dfbce63a89 184 assert_param(IS_WWDG_PRESCALER(hwwdg->Init.Prescaler));
elmot 1:d0dfbce63a89 185 assert_param(IS_WWDG_WINDOW(hwwdg->Init.Window));
elmot 1:d0dfbce63a89 186 assert_param(IS_WWDG_COUNTER(hwwdg->Init.Counter));
elmot 1:d0dfbce63a89 187 assert_param(IS_WWDG_EWI_MODE(hwwdg->Init.EWIMode));
elmot 1:d0dfbce63a89 188
elmot 1:d0dfbce63a89 189 /* Init the low level hardware */
elmot 1:d0dfbce63a89 190 HAL_WWDG_MspInit(hwwdg);
elmot 1:d0dfbce63a89 191
elmot 1:d0dfbce63a89 192 /* Set WWDG Counter */
elmot 1:d0dfbce63a89 193 WRITE_REG(hwwdg->Instance->CR, (WWDG_CR_WDGA | hwwdg->Init.Counter));
elmot 1:d0dfbce63a89 194
elmot 1:d0dfbce63a89 195 /* Set WWDG Prescaler and Window */
elmot 1:d0dfbce63a89 196 WRITE_REG(hwwdg->Instance->CFR, (hwwdg->Init.EWIMode | hwwdg->Init.Prescaler | hwwdg->Init.Window));
elmot 1:d0dfbce63a89 197
elmot 1:d0dfbce63a89 198 /* Return function status */
elmot 1:d0dfbce63a89 199 return HAL_OK;
elmot 1:d0dfbce63a89 200 }
elmot 1:d0dfbce63a89 201
elmot 1:d0dfbce63a89 202
elmot 1:d0dfbce63a89 203 /**
elmot 1:d0dfbce63a89 204 * @brief Initialize the WWDG MSP.
elmot 1:d0dfbce63a89 205 * @param hwwdg pointer to a WWDG_HandleTypeDef structure that contains
elmot 1:d0dfbce63a89 206 * the configuration information for the specified WWDG module.
elmot 1:d0dfbce63a89 207 * @note When rewriting this function in user file, mechanism may be added
elmot 1:d0dfbce63a89 208 * to avoid multiple initialize when HAL_WWDG_Init function is called
elmot 1:d0dfbce63a89 209 * again to change parameters.
elmot 1:d0dfbce63a89 210 * @retval None
elmot 1:d0dfbce63a89 211 */
elmot 1:d0dfbce63a89 212 __weak void HAL_WWDG_MspInit(WWDG_HandleTypeDef *hwwdg)
elmot 1:d0dfbce63a89 213 {
elmot 1:d0dfbce63a89 214 /* Prevent unused argument(s) compilation warning */
elmot 1:d0dfbce63a89 215 UNUSED(hwwdg);
elmot 1:d0dfbce63a89 216
elmot 1:d0dfbce63a89 217 /* NOTE: This function should not be modified, when the callback is needed,
elmot 1:d0dfbce63a89 218 the HAL_WWDG_MspInit could be implemented in the user file
elmot 1:d0dfbce63a89 219 */
elmot 1:d0dfbce63a89 220 }
elmot 1:d0dfbce63a89 221
elmot 1:d0dfbce63a89 222 /**
elmot 1:d0dfbce63a89 223 * @}
elmot 1:d0dfbce63a89 224 */
elmot 1:d0dfbce63a89 225
elmot 1:d0dfbce63a89 226 /** @defgroup WWDG_Exported_Functions_Group2 IO operation functions
elmot 1:d0dfbce63a89 227 * @brief IO operation functions
elmot 1:d0dfbce63a89 228 *
elmot 1:d0dfbce63a89 229 @verbatim
elmot 1:d0dfbce63a89 230 ==============================================================================
elmot 1:d0dfbce63a89 231 ##### IO operation functions #####
elmot 1:d0dfbce63a89 232 ==============================================================================
elmot 1:d0dfbce63a89 233 [..]
elmot 1:d0dfbce63a89 234 This section provides functions allowing to:
elmot 1:d0dfbce63a89 235 (+) Refresh the WWDG.
elmot 1:d0dfbce63a89 236 (+) Handle WWDG interrupt request and associated function callback.
elmot 1:d0dfbce63a89 237
elmot 1:d0dfbce63a89 238 @endverbatim
elmot 1:d0dfbce63a89 239 * @{
elmot 1:d0dfbce63a89 240 */
elmot 1:d0dfbce63a89 241
elmot 1:d0dfbce63a89 242 /**
elmot 1:d0dfbce63a89 243 * @brief Refresh the WWDG.
elmot 1:d0dfbce63a89 244 * @param hwwdg pointer to a WWDG_HandleTypeDef structure that contains
elmot 1:d0dfbce63a89 245 * the configuration information for the specified WWDG module.
elmot 1:d0dfbce63a89 246 * @retval HAL status
elmot 1:d0dfbce63a89 247 */
elmot 1:d0dfbce63a89 248 HAL_StatusTypeDef HAL_WWDG_Refresh(WWDG_HandleTypeDef *hwwdg)
elmot 1:d0dfbce63a89 249 {
elmot 1:d0dfbce63a89 250 /* Write to WWDG CR the WWDG Counter value to refresh with */
elmot 1:d0dfbce63a89 251 WRITE_REG(hwwdg->Instance->CR, (hwwdg->Init.Counter));
elmot 1:d0dfbce63a89 252
elmot 1:d0dfbce63a89 253 /* Return function status */
elmot 1:d0dfbce63a89 254 return HAL_OK;
elmot 1:d0dfbce63a89 255 }
elmot 1:d0dfbce63a89 256
elmot 1:d0dfbce63a89 257 /**
elmot 1:d0dfbce63a89 258 * @brief Handle WWDG interrupt request.
elmot 1:d0dfbce63a89 259 * @note The Early Wakeup Interrupt (EWI) can be used if specific safety operations
elmot 1:d0dfbce63a89 260 * or data logging must be performed before the actual reset is generated.
elmot 1:d0dfbce63a89 261 * The EWI interrupt is enabled by calling HAL_WWDG_Init function with
elmot 1:d0dfbce63a89 262 * EWIMode set to WWDG_EWI_ENABLE.
elmot 1:d0dfbce63a89 263 * When the downcounter reaches the value 0x40, and EWI interrupt is
elmot 1:d0dfbce63a89 264 * generated and the corresponding Interrupt Service Routine (ISR) can
elmot 1:d0dfbce63a89 265 * be used to trigger specific actions (such as communications or data
elmot 1:d0dfbce63a89 266 * logging), before resetting the device.
elmot 1:d0dfbce63a89 267 * @param hwwdg pointer to a WWDG_HandleTypeDef structure that contains
elmot 1:d0dfbce63a89 268 * the configuration information for the specified WWDG module.
elmot 1:d0dfbce63a89 269 * @retval None
elmot 1:d0dfbce63a89 270 */
elmot 1:d0dfbce63a89 271 void HAL_WWDG_IRQHandler(WWDG_HandleTypeDef *hwwdg)
elmot 1:d0dfbce63a89 272 {
elmot 1:d0dfbce63a89 273 /* Check if Early Wakeup Interrupt is enable */
elmot 1:d0dfbce63a89 274 if(__HAL_WWDG_GET_IT_SOURCE(hwwdg, WWDG_IT_EWI) != RESET)
elmot 1:d0dfbce63a89 275 {
elmot 1:d0dfbce63a89 276 /* Check if WWDG Early Wakeup Interrupt occurred */
elmot 1:d0dfbce63a89 277 if(__HAL_WWDG_GET_FLAG(hwwdg, WWDG_FLAG_EWIF) != RESET)
elmot 1:d0dfbce63a89 278 {
elmot 1:d0dfbce63a89 279 /* Clear the WWDG Early Wakeup flag */
elmot 1:d0dfbce63a89 280 __HAL_WWDG_CLEAR_FLAG(hwwdg, WWDG_FLAG_EWIF);
elmot 1:d0dfbce63a89 281
elmot 1:d0dfbce63a89 282 /* Early Wakeup callback */
elmot 1:d0dfbce63a89 283 HAL_WWDG_EarlyWakeupCallback(hwwdg);
elmot 1:d0dfbce63a89 284 }
elmot 1:d0dfbce63a89 285 }
elmot 1:d0dfbce63a89 286 }
elmot 1:d0dfbce63a89 287
elmot 1:d0dfbce63a89 288
elmot 1:d0dfbce63a89 289 /**
elmot 1:d0dfbce63a89 290 * @brief WWDG Early Wakeup callback.
elmot 1:d0dfbce63a89 291 * @param hwwdg pointer to a WWDG_HandleTypeDef structure that contains
elmot 1:d0dfbce63a89 292 * the configuration information for the specified WWDG module.
elmot 1:d0dfbce63a89 293 * @retval None
elmot 1:d0dfbce63a89 294 */
elmot 1:d0dfbce63a89 295 __weak void HAL_WWDG_EarlyWakeupCallback(WWDG_HandleTypeDef* hwwdg)
elmot 1:d0dfbce63a89 296 {
elmot 1:d0dfbce63a89 297 /* Prevent unused argument(s) compilation warning */
elmot 1:d0dfbce63a89 298 UNUSED(hwwdg);
elmot 1:d0dfbce63a89 299
elmot 1:d0dfbce63a89 300 /* NOTE: This function should not be modified, when the callback is needed,
elmot 1:d0dfbce63a89 301 the HAL_WWDG_EarlyWakeupCallback could be implemented in the user file
elmot 1:d0dfbce63a89 302 */
elmot 1:d0dfbce63a89 303 }
elmot 1:d0dfbce63a89 304
elmot 1:d0dfbce63a89 305 /**
elmot 1:d0dfbce63a89 306 * @}
elmot 1:d0dfbce63a89 307 */
elmot 1:d0dfbce63a89 308
elmot 1:d0dfbce63a89 309 /**
elmot 1:d0dfbce63a89 310 * @}
elmot 1:d0dfbce63a89 311 */
elmot 1:d0dfbce63a89 312
elmot 1:d0dfbce63a89 313 #endif /* HAL_WWDG_MODULE_ENABLED */
elmot 1:d0dfbce63a89 314 /**
elmot 1:d0dfbce63a89 315 * @}
elmot 1:d0dfbce63a89 316 */
elmot 1:d0dfbce63a89 317
elmot 1:d0dfbce63a89 318 /**
elmot 1:d0dfbce63a89 319 * @}
elmot 1:d0dfbce63a89 320 */
elmot 1:d0dfbce63a89 321
elmot 1:d0dfbce63a89 322 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/