mbed official / mbed-src

mbed library sources

Dependents:   Encrypted my_mbed lklk CyaSSL_DTLS_Cellular ... more

Superseded

This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.

Development branch of the mbed library sources. This library is kept in synch with the latest changes from the mbed SDK and it is not guaranteed to work.

If you are looking for a stable and tested release, please import one of the official mbed library releases:

Import librarymbed

The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.

Last commit 20 Feb 2019 by mbed official

targets/cmsis/TARGET_STM/TARGET_STM32F4/stm32f4xx_hal_iwdg.c@380:510f0c3515e3, 2014-11-03 (annotated)

Committer:
mbed_official
Date:
Mon Nov 03 10:15:07 2014 +0000
Revision:
380:510f0c3515e3
Parent:
targets/cmsis/TARGET_STM/TARGET_NUCLEO_F401RE/stm32f4xx_hal_iwdg.c@369:2e96f1b71984
Child:
532:fe11edbda85c
Synchronized with git revision 417f470ba9f4882d7079611cbc576afd9c49b0ef



Full URL: https://github.com/mbedmicro/mbed/commit/417f470ba9f4882d7079611cbc576afd9c49b0ef/



Targets: Factorisation of NUCLEO_F401RE and F411RE cmsis folders

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 87:085cde657901 1 /**
mbed_official 87:085cde657901 2 ******************************************************************************
mbed_official 87:085cde657901 3 * @file stm32f4xx_hal_iwdg.c
mbed_official 87:085cde657901 4 * @author MCD Application Team
mbed_official 369:2e96f1b71984 5 * @version V1.1.0
mbed_official 369:2e96f1b71984 6 * @date 19-June-2014
mbed_official 87:085cde657901 7 * @brief IWDG HAL module driver.
mbed_official 87:085cde657901 8 * This file provides firmware functions to manage the following
mbed_official 87:085cde657901 9 * functionalities of the Independent Watchdog (IWDG) peripheral:
mbed_official 87:085cde657901 10 * + Initialization and de-initialization functions
mbed_official 87:085cde657901 11 * + IO operation functions
mbed_official 87:085cde657901 12 * + Peripheral State functions
mbed_official 87:085cde657901 13 *
mbed_official 87:085cde657901 14 @verbatim
mbed_official 87:085cde657901 15 ==============================================================================
mbed_official 87:085cde657901 16 ##### IWDG Generic features #####
mbed_official 87:085cde657901 17 ==============================================================================
mbed_official 87:085cde657901 18 [..]
mbed_official 87:085cde657901 19 (+) The IWDG can be started by either software or hardware (configurable
mbed_official 87:085cde657901 20 through option byte).
mbed_official 87:085cde657901 21
mbed_official 87:085cde657901 22 (+) The IWDG is clocked by its own dedicated Low-Speed clock (LSI) and
mbed_official 87:085cde657901 23 thus stays active even if the main clock fails.
mbed_official 87:085cde657901 24 Once the IWDG is started, the LSI is forced ON and cannot be disabled
mbed_official 87:085cde657901 25 (LSI cannot be disabled too), and the counter starts counting down from
mbed_official 87:085cde657901 26 the reset value of 0xFFF. When it reaches the end of count value (0x000)
mbed_official 87:085cde657901 27 a system reset is generated.
mbed_official 87:085cde657901 28
mbed_official 87:085cde657901 29 (+) The IWDG counter should be refreshed at regular intervals, otherwise the
mbed_official 87:085cde657901 30 watchdog generates an MCU reset when the counter reaches 0.
mbed_official 87:085cde657901 31
mbed_official 87:085cde657901 32 (+) The IWDG is implemented in the VDD voltage domain that is still functional
mbed_official 87:085cde657901 33 in STOP and STANDBY mode (IWDG reset can wake-up from STANDBY).
mbed_official 87:085cde657901 34 IWDGRST flag in RCC_CSR register can be used to inform when an IWDG
mbed_official 87:085cde657901 35 reset occurs.
mbed_official 87:085cde657901 36
mbed_official 87:085cde657901 37 (+) Min-max timeout value @32KHz (LSI): ~125us / ~32.7s
mbed_official 87:085cde657901 38 The IWDG timeout may vary due to LSI frequency dispersion. STM32F4xx
mbed_official 87:085cde657901 39 devices provide the capability to measure the LSI frequency (LSI clock
mbed_official 87:085cde657901 40 connected internally to TIM5 CH4 input capture). The measured value
mbed_official 87:085cde657901 41 can be used to have an IWDG timeout with an acceptable accuracy.
mbed_official 87:085cde657901 42
mbed_official 87:085cde657901 43
mbed_official 87:085cde657901 44 ##### How to use this driver #####
mbed_official 87:085cde657901 45 ==============================================================================
mbed_official 87:085cde657901 46 [..]
mbed_official 369:2e96f1b71984 47 If Window option is disabled
mbed_official 369:2e96f1b71984 48 (+) Use IWDG using HAL_IWDG_Init() function to :
mbed_official 369:2e96f1b71984 49 (++) Enable write access to IWDG_PR, IWDG_RLR.
mbed_official 369:2e96f1b71984 50 (++) Configure the IWDG prescaler, counter reload value.
mbed_official 369:2e96f1b71984 51 This reload value will be loaded in the IWDG counter each time the counter
mbed_official 369:2e96f1b71984 52 is reloaded, then the IWDG will start counting down from this value.
mbed_official 369:2e96f1b71984 53 [..]
mbed_official 87:085cde657901 54 (+) Use IWDG using HAL_IWDG_Start() function to:
mbed_official 87:085cde657901 55 (++) Reload IWDG counter with value defined in the IWDG_RLR register.
mbed_official 87:085cde657901 56 (++) Start the IWDG, when the IWDG is used in software mode (no need
mbed_official 87:085cde657901 57 to enable the LSI, it will be enabled by hardware).
mbed_official 87:085cde657901 58 (+) Then the application program must refresh the IWDG counter at regular
mbed_official 87:085cde657901 59 intervals during normal operation to prevent an MCU reset, using
mbed_official 369:2e96f1b71984 60 HAL_IWDG_Refresh() function.
mbed_official 369:2e96f1b71984 61 [..]
mbed_official 369:2e96f1b71984 62 if Window option is enabled:
mbed_official 369:2e96f1b71984 63
mbed_official 369:2e96f1b71984 64 (+) Use IWDG using HAL_IWDG_Start() function to enable IWDG downcounter
mbed_official 369:2e96f1b71984 65 (+) Use IWDG using HAL_IWDG_Init() function to :
mbed_official 369:2e96f1b71984 66 (++) Enable write access to IWDG_PR, IWDG_RLR and IWDG_WINR registers.
mbed_official 369:2e96f1b71984 67 (++) Configure the IWDG prescaler, reload value and window value.
mbed_official 369:2e96f1b71984 68 (+) Then the application program must refresh the IWDG counter at regular
mbed_official 369:2e96f1b71984 69 intervals during normal operation to prevent an MCU reset, using
mbed_official 87:085cde657901 70 HAL_IWDG_Refresh() function.
mbed_official 87:085cde657901 71
mbed_official 87:085cde657901 72 *** IWDG HAL driver macros list ***
mbed_official 87:085cde657901 73 ====================================
mbed_official 87:085cde657901 74 [..]
mbed_official 87:085cde657901 75 Below the list of most used macros in IWDG HAL driver.
mbed_official 87:085cde657901 76
mbed_official 87:085cde657901 77 (+) __HAL_IWDG_START: Enable the IWDG peripheral
mbed_official 87:085cde657901 78 (+) __HAL_IWDG_RELOAD_COUNTER: Reloads IWDG counter with value defined in the reload register
mbed_official 87:085cde657901 79 (+) __HAL_IWDG_ENABLE_WRITE_ACCESS : Enable write access to IWDG_PR and IWDG_RLR registers
mbed_official 87:085cde657901 80 (+) __HAL_IWDG_DISABLE_WRITE_ACCESS : Disable write access to IWDG_PR and IWDG_RLR registers
mbed_official 87:085cde657901 81 (+) __HAL_IWDG_GET_FLAG: Get the selected IWDG's flag status
mbed_official 369:2e96f1b71984 82
mbed_official 87:085cde657901 83 @endverbatim
mbed_official 87:085cde657901 84 ******************************************************************************
mbed_official 87:085cde657901 85 * @attention
mbed_official 87:085cde657901 86 *
mbed_official 87:085cde657901 87 * <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
mbed_official 87:085cde657901 88 *
mbed_official 87:085cde657901 89 * Redistribution and use in source and binary forms, with or without modification,
mbed_official 87:085cde657901 90 * are permitted provided that the following conditions are met:
mbed_official 87:085cde657901 91 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 87:085cde657901 92 * this list of conditions and the following disclaimer.
mbed_official 87:085cde657901 93 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 87:085cde657901 94 * this list of conditions and the following disclaimer in the documentation
mbed_official 87:085cde657901 95 * and/or other materials provided with the distribution.
mbed_official 87:085cde657901 96 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 87:085cde657901 97 * may be used to endorse or promote products derived from this software
mbed_official 87:085cde657901 98 * without specific prior written permission.
mbed_official 87:085cde657901 99 *
mbed_official 87:085cde657901 100 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 87:085cde657901 101 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 87:085cde657901 102 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 87:085cde657901 103 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 87:085cde657901 104 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 87:085cde657901 105 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 87:085cde657901 106 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 87:085cde657901 107 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 87:085cde657901 108 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 87:085cde657901 109 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 87:085cde657901 110 *
mbed_official 87:085cde657901 111 ******************************************************************************
mbed_official 87:085cde657901 112 */
mbed_official 87:085cde657901 113
mbed_official 87:085cde657901 114 /* Includes ------------------------------------------------------------------*/
mbed_official 87:085cde657901 115 #include "stm32f4xx_hal.h"
mbed_official 87:085cde657901 116
mbed_official 87:085cde657901 117 /** @addtogroup STM32F4xx_HAL_Driver
mbed_official 87:085cde657901 118 * @{
mbed_official 87:085cde657901 119 */
mbed_official 87:085cde657901 120
mbed_official 87:085cde657901 121 /** @defgroup IWDG
mbed_official 87:085cde657901 122 * @brief IWDG HAL module driver.
mbed_official 87:085cde657901 123 * @{
mbed_official 87:085cde657901 124 */
mbed_official 87:085cde657901 125
mbed_official 87:085cde657901 126 #ifdef HAL_IWDG_MODULE_ENABLED
mbed_official 87:085cde657901 127
mbed_official 87:085cde657901 128 /* Private typedef -----------------------------------------------------------*/
mbed_official 87:085cde657901 129 /* Private define ------------------------------------------------------------*/
mbed_official 369:2e96f1b71984 130 #define IWDG_TIMEOUT_FLAG ((uint32_t)1000) /* 1 s */
mbed_official 87:085cde657901 131 /* Private macro -------------------------------------------------------------*/
mbed_official 87:085cde657901 132 /* Private variables ---------------------------------------------------------*/
mbed_official 87:085cde657901 133 /* Private function prototypes -----------------------------------------------*/
mbed_official 87:085cde657901 134 /* Private functions ---------------------------------------------------------*/
mbed_official 87:085cde657901 135
mbed_official 87:085cde657901 136 /** @defgroup IWDG_Private_Functions
mbed_official 87:085cde657901 137 * @{
mbed_official 87:085cde657901 138 */
mbed_official 87:085cde657901 139
mbed_official 87:085cde657901 140 /** @defgroup IWDG_Group1 Initialization and de-initialization functions
mbed_official 87:085cde657901 141 * @brief Initialization and Configuration functions.
mbed_official 87:085cde657901 142 *
mbed_official 87:085cde657901 143 @verbatim
mbed_official 87:085cde657901 144 ===============================================================================
mbed_official 87:085cde657901 145 ##### Initialization and de-initialization functions #####
mbed_official 87:085cde657901 146 ===============================================================================
mbed_official 87:085cde657901 147 [..] This section provides functions allowing to:
mbed_official 87:085cde657901 148 (+) Initialize the IWDG according to the specified parameters
mbed_official 87:085cde657901 149 in the IWDG_InitTypeDef and create the associated handle
mbed_official 87:085cde657901 150 (+) Initialize the IWDG MSP
mbed_official 87:085cde657901 151 (+) DeInitialize IWDG MSP
mbed_official 87:085cde657901 152
mbed_official 87:085cde657901 153 @endverbatim
mbed_official 87:085cde657901 154 * @{
mbed_official 87:085cde657901 155 */
mbed_official 87:085cde657901 156
mbed_official 87:085cde657901 157 /**
mbed_official 87:085cde657901 158 * @brief Initializes the IWDG according to the specified
mbed_official 87:085cde657901 159 * parameters in the IWDG_InitTypeDef and creates the associated handle.
mbed_official 226:b062af740e40 160 * @param hiwdg: pointer to a IWDG_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 161 * the configuration information for the specified IWDG module.
mbed_official 87:085cde657901 162 * @retval HAL status
mbed_official 87:085cde657901 163 */
mbed_official 87:085cde657901 164 HAL_StatusTypeDef HAL_IWDG_Init(IWDG_HandleTypeDef *hiwdg)
mbed_official 87:085cde657901 165 {
mbed_official 87:085cde657901 166 /* Check the IWDG handle allocation */
mbed_official 369:2e96f1b71984 167 if(hiwdg == HAL_NULL)
mbed_official 87:085cde657901 168 {
mbed_official 87:085cde657901 169 return HAL_ERROR;
mbed_official 87:085cde657901 170 }
mbed_official 87:085cde657901 171
mbed_official 87:085cde657901 172 /* Check the parameters */
mbed_official 369:2e96f1b71984 173 assert_param(IS_IWDG_ALL_INSTANCE(hiwdg->Instance));
mbed_official 87:085cde657901 174 assert_param(IS_IWDG_PRESCALER(hiwdg->Init.Prescaler));
mbed_official 87:085cde657901 175 assert_param(IS_IWDG_RELOAD(hiwdg->Init.Reload));
mbed_official 87:085cde657901 176
mbed_official 87:085cde657901 177 if(hiwdg->State == HAL_IWDG_STATE_RESET)
mbed_official 87:085cde657901 178 {
mbed_official 87:085cde657901 179 /* Init the low level hardware */
mbed_official 87:085cde657901 180 HAL_IWDG_MspInit(hiwdg);
mbed_official 87:085cde657901 181 }
mbed_official 87:085cde657901 182
mbed_official 87:085cde657901 183 /* Change IWDG peripheral state */
mbed_official 87:085cde657901 184 hiwdg->State = HAL_IWDG_STATE_BUSY;
mbed_official 87:085cde657901 185
mbed_official 87:085cde657901 186 /* Enable write access to IWDG_PR and IWDG_RLR registers */
mbed_official 87:085cde657901 187 __HAL_IWDG_ENABLE_WRITE_ACCESS(hiwdg);
mbed_official 87:085cde657901 188
mbed_official 369:2e96f1b71984 189 /* Write to IWDG registers the IWDG_Prescaler & IWDG_Reload values to work with */
mbed_official 369:2e96f1b71984 190 MODIFY_REG(hiwdg->Instance->PR, IWDG_PR_PR, hiwdg->Init.Prescaler);
mbed_official 369:2e96f1b71984 191 MODIFY_REG(hiwdg->Instance->RLR, IWDG_RLR_RL, hiwdg->Init.Reload);
mbed_official 87:085cde657901 192
mbed_official 87:085cde657901 193 /* Change IWDG peripheral state */
mbed_official 87:085cde657901 194 hiwdg->State = HAL_IWDG_STATE_READY;
mbed_official 87:085cde657901 195
mbed_official 87:085cde657901 196 /* Return function status */
mbed_official 87:085cde657901 197 return HAL_OK;
mbed_official 87:085cde657901 198 }
mbed_official 87:085cde657901 199
mbed_official 87:085cde657901 200 /**
mbed_official 87:085cde657901 201 * @brief Initializes the IWDG MSP.
mbed_official 226:b062af740e40 202 * @param hiwdg: pointer to a IWDG_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 203 * the configuration information for the specified IWDG module.
mbed_official 87:085cde657901 204 * @retval None
mbed_official 87:085cde657901 205 */
mbed_official 87:085cde657901 206 __weak void HAL_IWDG_MspInit(IWDG_HandleTypeDef *hiwdg)
mbed_official 87:085cde657901 207 {
mbed_official 87:085cde657901 208 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 87:085cde657901 209 the HAL_IWDG_MspInit could be implemented in the user file
mbed_official 87:085cde657901 210 */
mbed_official 87:085cde657901 211 }
mbed_official 87:085cde657901 212
mbed_official 87:085cde657901 213 /**
mbed_official 87:085cde657901 214 * @}
mbed_official 87:085cde657901 215 */
mbed_official 87:085cde657901 216
mbed_official 87:085cde657901 217 /** @defgroup IWDG_Group2 IO operation functions
mbed_official 87:085cde657901 218 * @brief IO operation functions
mbed_official 87:085cde657901 219 *
mbed_official 87:085cde657901 220 @verbatim
mbed_official 87:085cde657901 221 ===============================================================================
mbed_official 87:085cde657901 222 ##### IO operation functions #####
mbed_official 87:085cde657901 223 ===============================================================================
mbed_official 87:085cde657901 224 [..] This section provides functions allowing to:
mbed_official 87:085cde657901 225 (+) Start the IWDG.
mbed_official 87:085cde657901 226 (+) Refresh the IWDG.
mbed_official 87:085cde657901 227
mbed_official 87:085cde657901 228 @endverbatim
mbed_official 87:085cde657901 229 * @{
mbed_official 87:085cde657901 230 */
mbed_official 87:085cde657901 231
mbed_official 87:085cde657901 232 /**
mbed_official 87:085cde657901 233 * @brief Starts the IWDG.
mbed_official 226:b062af740e40 234 * @param hiwdg: pointer to a IWDG_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 235 * the configuration information for the specified IWDG module.
mbed_official 87:085cde657901 236 * @retval HAL status
mbed_official 87:085cde657901 237 */
mbed_official 87:085cde657901 238 HAL_StatusTypeDef HAL_IWDG_Start(IWDG_HandleTypeDef *hiwdg)
mbed_official 87:085cde657901 239 {
mbed_official 87:085cde657901 240 /* Process Locked */
mbed_official 87:085cde657901 241 __HAL_LOCK(hiwdg);
mbed_official 87:085cde657901 242
mbed_official 87:085cde657901 243 /* Change IWDG peripheral state */
mbed_official 87:085cde657901 244 hiwdg->State = HAL_IWDG_STATE_BUSY;
mbed_official 87:085cde657901 245
mbed_official 87:085cde657901 246 /* Start the IWDG peripheral */
mbed_official 87:085cde657901 247 __HAL_IWDG_START(hiwdg);
mbed_official 87:085cde657901 248
mbed_official 87:085cde657901 249 /* Reload IWDG counter with value defined in the RLR register */
mbed_official 87:085cde657901 250 __HAL_IWDG_RELOAD_COUNTER(hiwdg);
mbed_official 87:085cde657901 251
mbed_official 87:085cde657901 252 /* Change IWDG peripheral state */
mbed_official 87:085cde657901 253 hiwdg->State = HAL_IWDG_STATE_READY;
mbed_official 87:085cde657901 254
mbed_official 87:085cde657901 255 /* Process Unlocked */
mbed_official 87:085cde657901 256 __HAL_UNLOCK(hiwdg);
mbed_official 87:085cde657901 257
mbed_official 87:085cde657901 258 /* Return function status */
mbed_official 87:085cde657901 259 return HAL_OK;
mbed_official 87:085cde657901 260 }
mbed_official 87:085cde657901 261
mbed_official 87:085cde657901 262 /**
mbed_official 87:085cde657901 263 * @brief Refreshes the IWDG.
mbed_official 226:b062af740e40 264 * @param hiwdg: pointer to a IWDG_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 265 * the configuration information for the specified IWDG module.
mbed_official 87:085cde657901 266 * @retval HAL status
mbed_official 87:085cde657901 267 */
mbed_official 87:085cde657901 268 HAL_StatusTypeDef HAL_IWDG_Refresh(IWDG_HandleTypeDef *hiwdg)
mbed_official 87:085cde657901 269 {
mbed_official 369:2e96f1b71984 270 uint32_t tickstart = 0;
mbed_official 369:2e96f1b71984 271
mbed_official 87:085cde657901 272 /* Process Locked */
mbed_official 369:2e96f1b71984 273 __HAL_LOCK(hiwdg);
mbed_official 369:2e96f1b71984 274
mbed_official 87:085cde657901 275 /* Change IWDG peripheral state */
mbed_official 87:085cde657901 276 hiwdg->State = HAL_IWDG_STATE_BUSY;
mbed_official 369:2e96f1b71984 277
mbed_official 369:2e96f1b71984 278 tickstart = HAL_GetTick();
mbed_official 369:2e96f1b71984 279
mbed_official 369:2e96f1b71984 280 /* Wait until RVU flag is RESET */
mbed_official 369:2e96f1b71984 281 while(__HAL_IWDG_GET_FLAG(hiwdg, IWDG_FLAG_RVU) != RESET)
mbed_official 369:2e96f1b71984 282 {
mbed_official 369:2e96f1b71984 283 if((HAL_GetTick() - tickstart ) > IWDG_TIMEOUT_FLAG)
mbed_official 369:2e96f1b71984 284 {
mbed_official 369:2e96f1b71984 285 /* Set IWDG state */
mbed_official 369:2e96f1b71984 286 hiwdg->State = HAL_IWDG_STATE_TIMEOUT;
mbed_official 369:2e96f1b71984 287
mbed_official 369:2e96f1b71984 288 /* Process unlocked */
mbed_official 369:2e96f1b71984 289 __HAL_UNLOCK(hiwdg);
mbed_official 369:2e96f1b71984 290
mbed_official 369:2e96f1b71984 291 return HAL_TIMEOUT;
mbed_official 369:2e96f1b71984 292 }
mbed_official 369:2e96f1b71984 293 }
mbed_official 87:085cde657901 294
mbed_official 87:085cde657901 295 /* Reload IWDG counter with value defined in the reload register */
mbed_official 87:085cde657901 296 __HAL_IWDG_RELOAD_COUNTER(hiwdg);
mbed_official 87:085cde657901 297
mbed_official 87:085cde657901 298 /* Change IWDG peripheral state */
mbed_official 87:085cde657901 299 hiwdg->State = HAL_IWDG_STATE_READY;
mbed_official 87:085cde657901 300
mbed_official 87:085cde657901 301 /* Process Unlocked */
mbed_official 87:085cde657901 302 __HAL_UNLOCK(hiwdg);
mbed_official 87:085cde657901 303
mbed_official 87:085cde657901 304 /* Return function status */
mbed_official 87:085cde657901 305 return HAL_OK;
mbed_official 87:085cde657901 306 }
mbed_official 87:085cde657901 307
mbed_official 87:085cde657901 308 /**
mbed_official 87:085cde657901 309 * @}
mbed_official 87:085cde657901 310 */
mbed_official 87:085cde657901 311
mbed_official 87:085cde657901 312 /** @defgroup IWDG_Group3 Peripheral State functions
mbed_official 87:085cde657901 313 * @brief Peripheral State functions.
mbed_official 87:085cde657901 314 *
mbed_official 87:085cde657901 315 @verbatim
mbed_official 87:085cde657901 316 ===============================================================================
mbed_official 87:085cde657901 317 ##### Peripheral State functions #####
mbed_official 87:085cde657901 318 ===============================================================================
mbed_official 87:085cde657901 319 [..]
mbed_official 87:085cde657901 320 This subsection permits to get in run-time the status of the peripheral
mbed_official 87:085cde657901 321 and the data flow.
mbed_official 87:085cde657901 322
mbed_official 87:085cde657901 323 @endverbatim
mbed_official 87:085cde657901 324 * @{
mbed_official 87:085cde657901 325 */
mbed_official 87:085cde657901 326
mbed_official 87:085cde657901 327 /**
mbed_official 87:085cde657901 328 * @brief Returns the IWDG state.
mbed_official 226:b062af740e40 329 * @param hiwdg: pointer to a IWDG_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 330 * the configuration information for the specified IWDG module.
mbed_official 87:085cde657901 331 * @retval HAL state
mbed_official 87:085cde657901 332 */
mbed_official 87:085cde657901 333 HAL_IWDG_StateTypeDef HAL_IWDG_GetState(IWDG_HandleTypeDef *hiwdg)
mbed_official 87:085cde657901 334 {
mbed_official 87:085cde657901 335 return hiwdg->State;
mbed_official 87:085cde657901 336 }
mbed_official 87:085cde657901 337
mbed_official 87:085cde657901 338 /**
mbed_official 87:085cde657901 339 * @}
mbed_official 87:085cde657901 340 */
mbed_official 87:085cde657901 341
mbed_official 87:085cde657901 342 /**
mbed_official 87:085cde657901 343 * @}
mbed_official 87:085cde657901 344 */
mbed_official 87:085cde657901 345
mbed_official 87:085cde657901 346 #endif /* HAL_IWDG_MODULE_ENABLED */
mbed_official 87:085cde657901 347 /**
mbed_official 87:085cde657901 348 * @}
mbed_official 87:085cde657901 349 */
mbed_official 87:085cde657901 350
mbed_official 87:085cde657901 351 /**
mbed_official 87:085cde657901 352 * @}
mbed_official 87:085cde657901 353 */
mbed_official 87:085cde657901 354
mbed_official 87:085cde657901 355 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/