Johannes Stratmann / mbed-dev

added prescaler for 16 bit pwm in LPC1347 target

Fork of mbed-dev by mbed official

targets/cmsis/TARGET_STM/TARGET_STM32F2/stm32f2xx_hal_wwdg.c@147:ba84b7dc41a7, 2016-09-10 (annotated)

Committer:
JojoS
Date:
Sat Sep 10 15:32:04 2016 +0000
Revision:
147:ba84b7dc41a7
Parent:
144:ef7eb2e8f9f7 
added prescaler for 16 bit timers (solution as in LPC11xx), default prescaler 31 for max 28 ms period time

Who changed what in which revision?

UserRevisionLine numberNew contents of line
<> 144:ef7eb2e8f9f7 1 /**
<> 144:ef7eb2e8f9f7 2 ******************************************************************************
<> 144:ef7eb2e8f9f7 3 * @file stm32f2xx_hal_wwdg.c
<> 144:ef7eb2e8f9f7 4 * @author MCD Application Team
<> 144:ef7eb2e8f9f7 5 * @version V1.1.3
<> 144:ef7eb2e8f9f7 6 * @date 29-June-2016
<> 144:ef7eb2e8f9f7 7 * @brief WWDG HAL module driver.
<> 144:ef7eb2e8f9f7 8 * This file provides firmware functions to manage the following
<> 144:ef7eb2e8f9f7 9 * functionalities of the Window Watchdog (WWDG) peripheral:
<> 144:ef7eb2e8f9f7 10 * + Initialization and de-initialization functions
<> 144:ef7eb2e8f9f7 11 * + IO operation functions
<> 144:ef7eb2e8f9f7 12 * + Peripheral State functions
<> 144:ef7eb2e8f9f7 13 @verbatim
<> 144:ef7eb2e8f9f7 14 ==============================================================================
<> 144:ef7eb2e8f9f7 15 ##### WWDG specific features #####
<> 144:ef7eb2e8f9f7 16 ==============================================================================
<> 144:ef7eb2e8f9f7 17 [..]
<> 144:ef7eb2e8f9f7 18 Once enabled the WWDG generates a system reset on expiry of a programmed
<> 144:ef7eb2e8f9f7 19 time period, unless the program refreshes the counter (downcounter)
<> 144:ef7eb2e8f9f7 20 before reaching 0x3F value (i.e. a reset is generated when the counter
<> 144:ef7eb2e8f9f7 21 value rolls over from 0x40 to 0x3F).
<> 144:ef7eb2e8f9f7 22
<> 144:ef7eb2e8f9f7 23 (+) An MCU reset is also generated if the counter value is refreshed
<> 144:ef7eb2e8f9f7 24 before the counter has reached the refresh window value. This
<> 144:ef7eb2e8f9f7 25 implies that the counter must be refreshed in a limited window.
<> 144:ef7eb2e8f9f7 26 (+) Once enabled the WWDG cannot be disabled except by a system reset.
<> 144:ef7eb2e8f9f7 27 (+) WWDGRST flag in RCC_CSR register can be used to inform when a WWDG
<> 144:ef7eb2e8f9f7 28 reset occurs.
<> 144:ef7eb2e8f9f7 29 (+) The WWDG counter input clock is derived from the APB clock divided
<> 144:ef7eb2e8f9f7 30 by a programmable prescaler.
<> 144:ef7eb2e8f9f7 31 (+) WWDG clock (Hz) = PCLK1 / (4096 * Prescaler)
<> 144:ef7eb2e8f9f7 32 (+) WWDG timeout (mS) = 1000 * Counter / WWDG clock
<> 144:ef7eb2e8f9f7 33 (+) WWDG Counter refresh is allowed between the following limits :
<> 144:ef7eb2e8f9f7 34 (++) min time (mS) = 1000 * (Counter _ Window) / WWDG clock
<> 144:ef7eb2e8f9f7 35 (++) max time (mS) = 1000 * (Counter _ 0x40) / WWDG clock
<> 144:ef7eb2e8f9f7 36
<> 144:ef7eb2e8f9f7 37 (+) Min-max timeout value at 50 MHz(PCLK1): 81.9 us / 41.9 ms
<> 144:ef7eb2e8f9f7 38
<> 144:ef7eb2e8f9f7 39 (+) The Early Wakeup Interrupt (EWI) can be used if specific safety
<> 144:ef7eb2e8f9f7 40 operations or data logging must be performed before the actual reset is
<> 144:ef7eb2e8f9f7 41 generated. When the downcounter reaches the value 0x40, an EWI interrupt
<> 144:ef7eb2e8f9f7 42 is generated and the corresponding interrupt service routine (ISR) can
<> 144:ef7eb2e8f9f7 43 be used to trigger specific actions (such as communications or data
<> 144:ef7eb2e8f9f7 44 logging), before resetting the device.
<> 144:ef7eb2e8f9f7 45 In some applications, the EWI interrupt can be used to manage a software
<> 144:ef7eb2e8f9f7 46 system check and/or system recovery/graceful degradation, without
<> 144:ef7eb2e8f9f7 47 generating a WWDG reset. In this case, the corresponding interrupt
<> 144:ef7eb2e8f9f7 48 service routine (ISR) should reload the WWDG counter to avoid the WWDG
<> 144:ef7eb2e8f9f7 49 reset, then trigger the required actions.
<> 144:ef7eb2e8f9f7 50 Note:When the EWI interrupt cannot be served, e.g. due to a system lock
<> 144:ef7eb2e8f9f7 51 in a higher priority task, the WWDG reset will eventually be generated.
<> 144:ef7eb2e8f9f7 52
<> 144:ef7eb2e8f9f7 53 (+) Debug mode : When the microcontroller enters debug mode (core halted),
<> 144:ef7eb2e8f9f7 54 the WWDG counter either continues to work normally or stops, depending
<> 144:ef7eb2e8f9f7 55 on DBG_WWDG_STOP configuration bit in DBG module, accessible through
<> 144:ef7eb2e8f9f7 56 __HAL_DBGMCU_FREEZE_WWDG() and __HAL_DBGMCU_UNFREEZE_WWDG() macros
<> 144:ef7eb2e8f9f7 57
<> 144:ef7eb2e8f9f7 58 ##### How to use this driver #####
<> 144:ef7eb2e8f9f7 59 ==============================================================================
<> 144:ef7eb2e8f9f7 60 [..]
<> 144:ef7eb2e8f9f7 61 (+) Enable WWDG APB1 clock using __HAL_RCC_WWDG_CLK_ENABLE().
<> 144:ef7eb2e8f9f7 62
<> 144:ef7eb2e8f9f7 63 (+) Set the WWDG prescaler, refresh window, counter value and Early Wakeup
<> 144:ef7eb2e8f9f7 64 Interrupt mode using using HAL_WWDG_Init() function.
<> 144:ef7eb2e8f9f7 65 This enables WWDG peripheral and the downcounter starts downcounting
<> 144:ef7eb2e8f9f7 66 from given counter value.
<> 144:ef7eb2e8f9f7 67 Init function can be called again to modify all watchdog parameters,
<> 144:ef7eb2e8f9f7 68 however if EWI mode has been set once, it can't be clear until next
<> 144:ef7eb2e8f9f7 69 reset.
<> 144:ef7eb2e8f9f7 70
<> 144:ef7eb2e8f9f7 71 (+) The application program must refresh the WWDG counter at regular
<> 144:ef7eb2e8f9f7 72 intervals during normal operation to prevent an MCU reset using
<> 144:ef7eb2e8f9f7 73 HAL_WWDG_Refresh() function. This operation must occur only when
<> 144:ef7eb2e8f9f7 74 the counter is lower than the window value already programmed.
<> 144:ef7eb2e8f9f7 75
<> 144:ef7eb2e8f9f7 76 (+) if Early Wakeup Interrupt mode is enable an interrupt is generated when
<> 144:ef7eb2e8f9f7 77 the counter reaches 0x40. User can add his own code in weak function
<> 144:ef7eb2e8f9f7 78 HAL_WWDG_EarlyWakeupCallback().
<> 144:ef7eb2e8f9f7 79
<> 144:ef7eb2e8f9f7 80 *** WWDG HAL driver macros list ***
<> 144:ef7eb2e8f9f7 81 ==================================
<> 144:ef7eb2e8f9f7 82 [..]
<> 144:ef7eb2e8f9f7 83 Below the list of most used macros in WWDG HAL driver.
<> 144:ef7eb2e8f9f7 84
<> 144:ef7eb2e8f9f7 85 (+) __HAL_WWDG_GET_IT_SOURCE: Check the selected WWDG's interrupt source.
<> 144:ef7eb2e8f9f7 86 (+) __HAL_WWDG_GET_FLAG: Get the selected WWDG's flag status.
<> 144:ef7eb2e8f9f7 87 (+) __HAL_WWDG_CLEAR_FLAG: Clear the WWDG's pending flags.
<> 144:ef7eb2e8f9f7 88
<> 144:ef7eb2e8f9f7 89 @endverbatim
<> 144:ef7eb2e8f9f7 90 ******************************************************************************
<> 144:ef7eb2e8f9f7 91 * @attention
<> 144:ef7eb2e8f9f7 92 *
<> 144:ef7eb2e8f9f7 93 * <h2><center>&copy; COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
<> 144:ef7eb2e8f9f7 94 *
<> 144:ef7eb2e8f9f7 95 * Redistribution and use in source and binary forms, with or without modification,
<> 144:ef7eb2e8f9f7 96 * are permitted provided that the following conditions are met:
<> 144:ef7eb2e8f9f7 97 * 1. Redistributions of source code must retain the above copyright notice,
<> 144:ef7eb2e8f9f7 98 * this list of conditions and the following disclaimer.
<> 144:ef7eb2e8f9f7 99 * 2. Redistributions in binary form must reproduce the above copyright notice,
<> 144:ef7eb2e8f9f7 100 * this list of conditions and the following disclaimer in the documentation
<> 144:ef7eb2e8f9f7 101 * and/or other materials provided with the distribution.
<> 144:ef7eb2e8f9f7 102 * 3. Neither the name of STMicroelectronics nor the names of its contributors
<> 144:ef7eb2e8f9f7 103 * may be used to endorse or promote products derived from this software
<> 144:ef7eb2e8f9f7 104 * without specific prior written permission.
<> 144:ef7eb2e8f9f7 105 *
<> 144:ef7eb2e8f9f7 106 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
<> 144:ef7eb2e8f9f7 107 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
<> 144:ef7eb2e8f9f7 108 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
<> 144:ef7eb2e8f9f7 109 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
<> 144:ef7eb2e8f9f7 110 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
<> 144:ef7eb2e8f9f7 111 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
<> 144:ef7eb2e8f9f7 112 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
<> 144:ef7eb2e8f9f7 113 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
<> 144:ef7eb2e8f9f7 114 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
<> 144:ef7eb2e8f9f7 115 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
<> 144:ef7eb2e8f9f7 116 *
<> 144:ef7eb2e8f9f7 117 ******************************************************************************
<> 144:ef7eb2e8f9f7 118 */
<> 144:ef7eb2e8f9f7 119
<> 144:ef7eb2e8f9f7 120 /* Includes ------------------------------------------------------------------*/
<> 144:ef7eb2e8f9f7 121 #include "stm32f2xx_hal.h"
<> 144:ef7eb2e8f9f7 122
<> 144:ef7eb2e8f9f7 123 /** @addtogroup STM32F2xx_HAL_Driver
<> 144:ef7eb2e8f9f7 124 * @{
<> 144:ef7eb2e8f9f7 125 */
<> 144:ef7eb2e8f9f7 126
<> 144:ef7eb2e8f9f7 127 #ifdef HAL_WWDG_MODULE_ENABLED
<> 144:ef7eb2e8f9f7 128 /** @defgroup WWDG WWDG
<> 144:ef7eb2e8f9f7 129 * @brief WWDG HAL module driver.
<> 144:ef7eb2e8f9f7 130 * @{
<> 144:ef7eb2e8f9f7 131 */
<> 144:ef7eb2e8f9f7 132
<> 144:ef7eb2e8f9f7 133 /* Private typedef -----------------------------------------------------------*/
<> 144:ef7eb2e8f9f7 134 /* Private define ------------------------------------------------------------*/
<> 144:ef7eb2e8f9f7 135 /* Private macro -------------------------------------------------------------*/
<> 144:ef7eb2e8f9f7 136 /* Private variables ---------------------------------------------------------*/
<> 144:ef7eb2e8f9f7 137 /* Private function prototypes -----------------------------------------------*/
<> 144:ef7eb2e8f9f7 138 /* Exported functions --------------------------------------------------------*/
<> 144:ef7eb2e8f9f7 139
<> 144:ef7eb2e8f9f7 140 /** @defgroup WWDG_Exported_Functions WWDG Exported Functions
<> 144:ef7eb2e8f9f7 141 * @{
<> 144:ef7eb2e8f9f7 142 */
<> 144:ef7eb2e8f9f7 143
<> 144:ef7eb2e8f9f7 144 /** @defgroup WWDG_Exported_Functions_Group1 Initialization and Configuration functions
<> 144:ef7eb2e8f9f7 145 * @brief Initialization and Configuration functions.
<> 144:ef7eb2e8f9f7 146 *
<> 144:ef7eb2e8f9f7 147 @verbatim
<> 144:ef7eb2e8f9f7 148 ==============================================================================
<> 144:ef7eb2e8f9f7 149 ##### Initialization and Configuration functions #####
<> 144:ef7eb2e8f9f7 150 ==============================================================================
<> 144:ef7eb2e8f9f7 151 [..]
<> 144:ef7eb2e8f9f7 152 This section provides functions allowing to:
<> 144:ef7eb2e8f9f7 153 (+) Initialize and start the WWDG according to the specified parameters
<> 144:ef7eb2e8f9f7 154 in the WWDG_InitTypeDef of associated handle.
<> 144:ef7eb2e8f9f7 155 (+) Initialize the WWDG MSP.
<> 144:ef7eb2e8f9f7 156
<> 144:ef7eb2e8f9f7 157 @endverbatim
<> 144:ef7eb2e8f9f7 158 * @{
<> 144:ef7eb2e8f9f7 159 */
<> 144:ef7eb2e8f9f7 160
<> 144:ef7eb2e8f9f7 161 /**
<> 144:ef7eb2e8f9f7 162 * @brief Initialize the WWDG according to the specified.
<> 144:ef7eb2e8f9f7 163 * parameters in the WWDG_InitTypeDef of associated handle.
<> 144:ef7eb2e8f9f7 164 * @param hwwdg pointer to a WWDG_HandleTypeDef structure that contains
<> 144:ef7eb2e8f9f7 165 * the configuration information for the specified WWDG module.
<> 144:ef7eb2e8f9f7 166 * @retval HAL status
<> 144:ef7eb2e8f9f7 167 */
<> 144:ef7eb2e8f9f7 168 HAL_StatusTypeDef HAL_WWDG_Init(WWDG_HandleTypeDef *hwwdg)
<> 144:ef7eb2e8f9f7 169 {
<> 144:ef7eb2e8f9f7 170 /* Check the WWDG handle allocation */
<> 144:ef7eb2e8f9f7 171 if(hwwdg == NULL)
<> 144:ef7eb2e8f9f7 172 {
<> 144:ef7eb2e8f9f7 173 return HAL_ERROR;
<> 144:ef7eb2e8f9f7 174 }
<> 144:ef7eb2e8f9f7 175
<> 144:ef7eb2e8f9f7 176 /* Check the parameters */
<> 144:ef7eb2e8f9f7 177 assert_param(IS_WWDG_ALL_INSTANCE(hwwdg->Instance));
<> 144:ef7eb2e8f9f7 178 assert_param(IS_WWDG_PRESCALER(hwwdg->Init.Prescaler));
<> 144:ef7eb2e8f9f7 179 assert_param(IS_WWDG_WINDOW(hwwdg->Init.Window));
<> 144:ef7eb2e8f9f7 180 assert_param(IS_WWDG_COUNTER(hwwdg->Init.Counter));
<> 144:ef7eb2e8f9f7 181 assert_param(IS_WWDG_EWI_MODE(hwwdg->Init.EWIMode));
<> 144:ef7eb2e8f9f7 182
<> 144:ef7eb2e8f9f7 183 /* Init the low level hardware */
<> 144:ef7eb2e8f9f7 184 HAL_WWDG_MspInit(hwwdg);
<> 144:ef7eb2e8f9f7 185
<> 144:ef7eb2e8f9f7 186 /* Set WWDG Counter */
<> 144:ef7eb2e8f9f7 187 WRITE_REG(hwwdg->Instance->CR, (WWDG_CR_WDGA | hwwdg->Init.Counter));
<> 144:ef7eb2e8f9f7 188
<> 144:ef7eb2e8f9f7 189 /* Set WWDG Prescaler and Window */
<> 144:ef7eb2e8f9f7 190 WRITE_REG(hwwdg->Instance->CFR, (hwwdg->Init.EWIMode | hwwdg->Init.Prescaler | hwwdg->Init.Window));
<> 144:ef7eb2e8f9f7 191
<> 144:ef7eb2e8f9f7 192 /* Return function status */
<> 144:ef7eb2e8f9f7 193 return HAL_OK;
<> 144:ef7eb2e8f9f7 194 }
<> 144:ef7eb2e8f9f7 195
<> 144:ef7eb2e8f9f7 196 /**
<> 144:ef7eb2e8f9f7 197 * @brief Initialize the WWDG MSP.
<> 144:ef7eb2e8f9f7 198 * @param hwwdg pointer to a WWDG_HandleTypeDef structure that contains
<> 144:ef7eb2e8f9f7 199 * the configuration information for the specified WWDG module.
<> 144:ef7eb2e8f9f7 200 * @note When rewriting this function in user file, mechanism may be added
<> 144:ef7eb2e8f9f7 201 * to avoid multiple initialize when HAL_WWDG_Init function is called
<> 144:ef7eb2e8f9f7 202 * again to change parameters.
<> 144:ef7eb2e8f9f7 203 * @retval None
<> 144:ef7eb2e8f9f7 204 */
<> 144:ef7eb2e8f9f7 205 __weak void HAL_WWDG_MspInit(WWDG_HandleTypeDef *hwwdg)
<> 144:ef7eb2e8f9f7 206 {
<> 144:ef7eb2e8f9f7 207 /* Prevent unused argument(s) compilation warning */
<> 144:ef7eb2e8f9f7 208 UNUSED(hwwdg);
<> 144:ef7eb2e8f9f7 209
<> 144:ef7eb2e8f9f7 210 /* NOTE: This function should not be modified, when the callback is needed,
<> 144:ef7eb2e8f9f7 211 the HAL_WWDG_MspInit could be implemented in the user file
<> 144:ef7eb2e8f9f7 212 */
<> 144:ef7eb2e8f9f7 213 }
<> 144:ef7eb2e8f9f7 214
<> 144:ef7eb2e8f9f7 215 /**
<> 144:ef7eb2e8f9f7 216 * @}
<> 144:ef7eb2e8f9f7 217 */
<> 144:ef7eb2e8f9f7 218
<> 144:ef7eb2e8f9f7 219 /** @defgroup WWDG_Exported_Functions_Group2 IO operation functions
<> 144:ef7eb2e8f9f7 220 * @brief IO operation functions
<> 144:ef7eb2e8f9f7 221 *
<> 144:ef7eb2e8f9f7 222 @verbatim
<> 144:ef7eb2e8f9f7 223 ==============================================================================
<> 144:ef7eb2e8f9f7 224 ##### IO operation functions #####
<> 144:ef7eb2e8f9f7 225 ==============================================================================
<> 144:ef7eb2e8f9f7 226 [..]
<> 144:ef7eb2e8f9f7 227 This section provides functions allowing to:
<> 144:ef7eb2e8f9f7 228 (+) Refresh the WWDG.
<> 144:ef7eb2e8f9f7 229 (+) Handle WWDG interrupt request and associated function callback.
<> 144:ef7eb2e8f9f7 230
<> 144:ef7eb2e8f9f7 231 @endverbatim
<> 144:ef7eb2e8f9f7 232 * @{
<> 144:ef7eb2e8f9f7 233 */
<> 144:ef7eb2e8f9f7 234
<> 144:ef7eb2e8f9f7 235 /**
<> 144:ef7eb2e8f9f7 236 * @brief Refresh the WWDG.
<> 144:ef7eb2e8f9f7 237 * @param hwwdg pointer to a WWDG_HandleTypeDef structure that contains
<> 144:ef7eb2e8f9f7 238 * the configuration information for the specified WWDG module.
<> 144:ef7eb2e8f9f7 239 * @retval HAL status
<> 144:ef7eb2e8f9f7 240 */
<> 144:ef7eb2e8f9f7 241 HAL_StatusTypeDef HAL_WWDG_Refresh(WWDG_HandleTypeDef *hwwdg)
<> 144:ef7eb2e8f9f7 242 {
<> 144:ef7eb2e8f9f7 243 /* Write to WWDG CR the WWDG Counter value to refresh with */
<> 144:ef7eb2e8f9f7 244 WRITE_REG(hwwdg->Instance->CR, (hwwdg->Init.Counter));
<> 144:ef7eb2e8f9f7 245
<> 144:ef7eb2e8f9f7 246 /* Return function status */
<> 144:ef7eb2e8f9f7 247 return HAL_OK;
<> 144:ef7eb2e8f9f7 248 }
<> 144:ef7eb2e8f9f7 249
<> 144:ef7eb2e8f9f7 250 /**
<> 144:ef7eb2e8f9f7 251 * @brief Handle WWDG interrupt request.
<> 144:ef7eb2e8f9f7 252 * @note The Early Wakeup Interrupt (EWI) can be used if specific safety operations
<> 144:ef7eb2e8f9f7 253 * or data logging must be performed before the actual reset is generated.
<> 144:ef7eb2e8f9f7 254 * The EWI interrupt is enabled by calling HAL_WWDG_Init function with
<> 144:ef7eb2e8f9f7 255 * EWIMode set to WWDG_EWI_ENABLE.
<> 144:ef7eb2e8f9f7 256 * When the downcounter reaches the value 0x40, and EWI interrupt is
<> 144:ef7eb2e8f9f7 257 * generated and the corresponding Interrupt Service Routine (ISR) can
<> 144:ef7eb2e8f9f7 258 * be used to trigger specific actions (such as communications or data
<> 144:ef7eb2e8f9f7 259 * logging), before resetting the device.
<> 144:ef7eb2e8f9f7 260 * @param hwwdg pointer to a WWDG_HandleTypeDef structure that contains
<> 144:ef7eb2e8f9f7 261 * the configuration information for the specified WWDG module.
<> 144:ef7eb2e8f9f7 262 * @retval None
<> 144:ef7eb2e8f9f7 263 */
<> 144:ef7eb2e8f9f7 264 void HAL_WWDG_IRQHandler(WWDG_HandleTypeDef *hwwdg)
<> 144:ef7eb2e8f9f7 265 {
<> 144:ef7eb2e8f9f7 266 /* Check if Early Wakeup Interrupt is enable */
<> 144:ef7eb2e8f9f7 267 if(__HAL_WWDG_GET_IT_SOURCE(hwwdg, WWDG_IT_EWI) != RESET)
<> 144:ef7eb2e8f9f7 268 {
<> 144:ef7eb2e8f9f7 269 /* Check if WWDG Early Wakeup Interrupt occurred */
<> 144:ef7eb2e8f9f7 270 if(__HAL_WWDG_GET_FLAG(hwwdg, WWDG_FLAG_EWIF) != RESET)
<> 144:ef7eb2e8f9f7 271 {
<> 144:ef7eb2e8f9f7 272 /* Clear the WWDG Early Wakeup flag */
<> 144:ef7eb2e8f9f7 273 __HAL_WWDG_CLEAR_FLAG(hwwdg, WWDG_FLAG_EWIF);
<> 144:ef7eb2e8f9f7 274
<> 144:ef7eb2e8f9f7 275 /* Early Wakeup callback */
<> 144:ef7eb2e8f9f7 276 HAL_WWDG_EarlyWakeupCallback(hwwdg);
<> 144:ef7eb2e8f9f7 277 }
<> 144:ef7eb2e8f9f7 278 }
<> 144:ef7eb2e8f9f7 279 }
<> 144:ef7eb2e8f9f7 280
<> 144:ef7eb2e8f9f7 281 /**
<> 144:ef7eb2e8f9f7 282 * @brief WWDG Early Wakeup callback.
<> 144:ef7eb2e8f9f7 283 * @param hwwdg : pointer to a WWDG_HandleTypeDef structure that contains
<> 144:ef7eb2e8f9f7 284 * the configuration information for the specified WWDG module.
<> 144:ef7eb2e8f9f7 285 * @retval None
<> 144:ef7eb2e8f9f7 286 */
<> 144:ef7eb2e8f9f7 287 __weak void HAL_WWDG_EarlyWakeupCallback(WWDG_HandleTypeDef* hwwdg)
<> 144:ef7eb2e8f9f7 288 {
<> 144:ef7eb2e8f9f7 289 /* Prevent unused argument(s) compilation warning */
<> 144:ef7eb2e8f9f7 290 UNUSED(hwwdg);
<> 144:ef7eb2e8f9f7 291
<> 144:ef7eb2e8f9f7 292 /* NOTE: This function should not be modified, when the callback is needed,
<> 144:ef7eb2e8f9f7 293 the HAL_WWDG_EarlyWakeupCallback could be implemented in the user file
<> 144:ef7eb2e8f9f7 294 */
<> 144:ef7eb2e8f9f7 295 }
<> 144:ef7eb2e8f9f7 296
<> 144:ef7eb2e8f9f7 297 /**
<> 144:ef7eb2e8f9f7 298 * @}
<> 144:ef7eb2e8f9f7 299 */
<> 144:ef7eb2e8f9f7 300
<> 144:ef7eb2e8f9f7 301 /**
<> 144:ef7eb2e8f9f7 302 * @}
<> 144:ef7eb2e8f9f7 303 */
<> 144:ef7eb2e8f9f7 304
<> 144:ef7eb2e8f9f7 305 #endif /* HAL_WWDG_MODULE_ENABLED */
<> 144:ef7eb2e8f9f7 306 /**
<> 144:ef7eb2e8f9f7 307 * @}
<> 144:ef7eb2e8f9f7 308 */
<> 144:ef7eb2e8f9f7 309
<> 144:ef7eb2e8f9f7 310 /**
<> 144:ef7eb2e8f9f7 311 * @}
<> 144:ef7eb2e8f9f7 312 */
<> 144:ef7eb2e8f9f7 313
<> 144:ef7eb2e8f9f7 314 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/