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Dependents:   mbed-TFT-example-NCS36510 mbed-Accelerometer-example-NCS36510 mbed-Accelerometer-example-NCS36510

targets/TARGET_STM/TARGET_STM32F1/device/stm32f1xx_hal_iwdg.c@1:f30bdcd2b33b, 2017-02-27 (annotated)

Committer:
jacobjohnson
Date:
Mon Feb 27 17:45:05 2017 +0000
Revision:
1:f30bdcd2b33b
Parent:
0:098463de4c5d 
changed the inputscale from 1 to 7 in analogin_api.c.  This will need to be changed later, and accessed from the main level, but for now this allows the  adc to read a value from 0 to 3.7V, instead of just up to 1V.;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
group-onsemi 0:098463de4c5d 1 /**
group-onsemi 0:098463de4c5d 2 ******************************************************************************
group-onsemi 0:098463de4c5d 3 * @file stm32f1xx_hal_iwdg.c
group-onsemi 0:098463de4c5d 4 * @author MCD Application Team
group-onsemi 0:098463de4c5d 5 * @version V1.0.5
group-onsemi 0:098463de4c5d 6 * @date 06-December-2016
group-onsemi 0:098463de4c5d 7 * @brief IWDG HAL module driver.
group-onsemi 0:098463de4c5d 8 * This file provides firmware functions to manage the following
group-onsemi 0:098463de4c5d 9 * functionalities of the Independent Watchdog (IWDG) peripheral:
group-onsemi 0:098463de4c5d 10 * + Initialization and Configuration functions
group-onsemi 0:098463de4c5d 11 * + IO operation functions
group-onsemi 0:098463de4c5d 12 * + Peripheral State functions
group-onsemi 0:098463de4c5d 13 @verbatim
group-onsemi 0:098463de4c5d 14 ================================================================================
group-onsemi 0:098463de4c5d 15 ##### IWDG specific features #####
group-onsemi 0:098463de4c5d 16 ================================================================================
group-onsemi 0:098463de4c5d 17 [..]
group-onsemi 0:098463de4c5d 18 (+) The IWDG can be started by either software or hardware (configurable
group-onsemi 0:098463de4c5d 19 through option byte).
group-onsemi 0:098463de4c5d 20 (+) The IWDG is clocked by its own dedicated Low-Speed clock (LSI) and
group-onsemi 0:098463de4c5d 21 thus stays active even if the main clock fails.
group-onsemi 0:098463de4c5d 22 (+) Once the IWDG is started, the LSI is forced ON and cannot be disabled
group-onsemi 0:098463de4c5d 23 (LSI cannot be disabled too), and the counter starts counting down from
group-onsemi 0:098463de4c5d 24 the reset value of 0xFFF. When it reaches the end of count value (0x000)
group-onsemi 0:098463de4c5d 25 a system reset is generated.
group-onsemi 0:098463de4c5d 26 (+) The IWDG counter should be refreshed at regular intervals, otherwise the
group-onsemi 0:098463de4c5d 27 watchdog generates an MCU reset when the counter reaches 0.
group-onsemi 0:098463de4c5d 28 (+) The IWDG is implemented in the VDD voltage domain that is still functional
group-onsemi 0:098463de4c5d 29 in STOP and STANDBY mode (IWDG reset can wake-up from STANDBY).
group-onsemi 0:098463de4c5d 30 (+) IWDGRST flag in RCC_CSR register can be used to inform when an IWDG
group-onsemi 0:098463de4c5d 31 reset occurs.
group-onsemi 0:098463de4c5d 32
group-onsemi 0:098463de4c5d 33 (+) Min-max timeout value at 40KHz (LSI): 0.1us / 26.2s .
group-onsemi 0:098463de4c5d 34 The IWDG timeout may vary due to LSI frequency dispersion. STM32F1xx
group-onsemi 0:098463de4c5d 35 devices provide the capability to measure the LSI frequency (LSI clock
group-onsemi 0:098463de4c5d 36 connected internally to TIM5 CH4 input capture). The measured value
group-onsemi 0:098463de4c5d 37 can be used to have an IWDG timeout with an acceptable accuracy.
group-onsemi 0:098463de4c5d 38 For more information, please refer to the STM32F1xx Reference manual.
group-onsemi 0:098463de4c5d 39 Note: LSI Calibration is only available on: High density, XL-density and Connectivity line devices.
group-onsemi 0:098463de4c5d 40
group-onsemi 0:098463de4c5d 41 ##### How to use this driver #####
group-onsemi 0:098463de4c5d 42 ==============================================================================
group-onsemi 0:098463de4c5d 43 [..]
group-onsemi 0:098463de4c5d 44 (+) Use IWDG using HAL_IWDG_Init() function to :
group-onsemi 0:098463de4c5d 45 (++) Enable write access to IWDG_PR, IWDG_RLR.
group-onsemi 0:098463de4c5d 46 (++) Configure the IWDG prescaler, counter reload value.
group-onsemi 0:098463de4c5d 47 This reload value will be loaded in the IWDG counter each time the counter
group-onsemi 0:098463de4c5d 48 is reloaded, then the IWDG will start counting down from this value.
group-onsemi 0:098463de4c5d 49 (+) Use IWDG using HAL_IWDG_Start() function to :
group-onsemi 0:098463de4c5d 50 (++) Reload IWDG counter with value defined in the IWDG_RLR register.
group-onsemi 0:098463de4c5d 51 (++) Start the IWDG, when the IWDG is used in software mode (no need
group-onsemi 0:098463de4c5d 52 to enable the LSI, it will be enabled by hardware).
group-onsemi 0:098463de4c5d 53 (+) Then the application program must refresh the IWDG counter at regular
group-onsemi 0:098463de4c5d 54 intervals during normal operation to prevent an MCU reset, using
group-onsemi 0:098463de4c5d 55 HAL_IWDG_Refresh() function.
group-onsemi 0:098463de4c5d 56
group-onsemi 0:098463de4c5d 57 *** IWDG HAL driver macros list ***
group-onsemi 0:098463de4c5d 58 ====================================
group-onsemi 0:098463de4c5d 59 [..]
group-onsemi 0:098463de4c5d 60 Below the list of most used macros in IWDG HAL driver.
group-onsemi 0:098463de4c5d 61
group-onsemi 0:098463de4c5d 62 (+) __HAL_IWDG_START: Enable the IWDG peripheral
group-onsemi 0:098463de4c5d 63 (+) __HAL_IWDG_RELOAD_COUNTER: Reloads IWDG counter with value defined in the reload register
group-onsemi 0:098463de4c5d 64 (+) __HAL_IWDG_GET_FLAG: Get the selected IWDG's flag status
group-onsemi 0:098463de4c5d 65
group-onsemi 0:098463de4c5d 66 @endverbatim
group-onsemi 0:098463de4c5d 67 ******************************************************************************
group-onsemi 0:098463de4c5d 68 * @attention
group-onsemi 0:098463de4c5d 69 *
group-onsemi 0:098463de4c5d 70 * <h2><center>&copy; COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
group-onsemi 0:098463de4c5d 71 *
group-onsemi 0:098463de4c5d 72 * Redistribution and use in source and binary forms, with or without modification,
group-onsemi 0:098463de4c5d 73 * are permitted provided that the following conditions are met:
group-onsemi 0:098463de4c5d 74 * 1. Redistributions of source code must retain the above copyright notice,
group-onsemi 0:098463de4c5d 75 * this list of conditions and the following disclaimer.
group-onsemi 0:098463de4c5d 76 * 2. Redistributions in binary form must reproduce the above copyright notice,
group-onsemi 0:098463de4c5d 77 * this list of conditions and the following disclaimer in the documentation
group-onsemi 0:098463de4c5d 78 * and/or other materials provided with the distribution.
group-onsemi 0:098463de4c5d 79 * 3. Neither the name of STMicroelectronics nor the names of its contributors
group-onsemi 0:098463de4c5d 80 * may be used to endorse or promote products derived from this software
group-onsemi 0:098463de4c5d 81 * without specific prior written permission.
group-onsemi 0:098463de4c5d 82 *
group-onsemi 0:098463de4c5d 83 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
group-onsemi 0:098463de4c5d 84 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
group-onsemi 0:098463de4c5d 85 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
group-onsemi 0:098463de4c5d 86 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
group-onsemi 0:098463de4c5d 87 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
group-onsemi 0:098463de4c5d 88 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
group-onsemi 0:098463de4c5d 89 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
group-onsemi 0:098463de4c5d 90 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
group-onsemi 0:098463de4c5d 91 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
group-onsemi 0:098463de4c5d 92 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
group-onsemi 0:098463de4c5d 93 *
group-onsemi 0:098463de4c5d 94 ******************************************************************************
group-onsemi 0:098463de4c5d 95 */
group-onsemi 0:098463de4c5d 96
group-onsemi 0:098463de4c5d 97 /* Includes ------------------------------------------------------------------*/
group-onsemi 0:098463de4c5d 98 #include "stm32f1xx_hal.h"
group-onsemi 0:098463de4c5d 99
group-onsemi 0:098463de4c5d 100 /** @addtogroup STM32F1xx_HAL_Driver
group-onsemi 0:098463de4c5d 101 * @{
group-onsemi 0:098463de4c5d 102 */
group-onsemi 0:098463de4c5d 103
group-onsemi 0:098463de4c5d 104 /** @defgroup IWDG IWDG
group-onsemi 0:098463de4c5d 105 * @brief IWDG HAL module driver.
group-onsemi 0:098463de4c5d 106 * @{
group-onsemi 0:098463de4c5d 107 */
group-onsemi 0:098463de4c5d 108
group-onsemi 0:098463de4c5d 109 #ifdef HAL_IWDG_MODULE_ENABLED
group-onsemi 0:098463de4c5d 110
group-onsemi 0:098463de4c5d 111 /* Private typedef -----------------------------------------------------------*/
group-onsemi 0:098463de4c5d 112 /* Private define ------------------------------------------------------------*/
group-onsemi 0:098463de4c5d 113
group-onsemi 0:098463de4c5d 114 /** @defgroup IWDG_Private_Constants IWDG Private Constants
group-onsemi 0:098463de4c5d 115 * @{
group-onsemi 0:098463de4c5d 116 */
group-onsemi 0:098463de4c5d 117
group-onsemi 0:098463de4c5d 118 #define IWDG_DEFAULT_TIMEOUT (uint32_t)1000
group-onsemi 0:098463de4c5d 119
group-onsemi 0:098463de4c5d 120 /**
group-onsemi 0:098463de4c5d 121 * @}
group-onsemi 0:098463de4c5d 122 */
group-onsemi 0:098463de4c5d 123
group-onsemi 0:098463de4c5d 124 /* Private macro -------------------------------------------------------------*/
group-onsemi 0:098463de4c5d 125 /* Private variables ---------------------------------------------------------*/
group-onsemi 0:098463de4c5d 126 /* Private function prototypes -----------------------------------------------*/
group-onsemi 0:098463de4c5d 127 /* Private functions ---------------------------------------------------------*/
group-onsemi 0:098463de4c5d 128
group-onsemi 0:098463de4c5d 129 /** @defgroup IWDG_Exported_Functions IWDG Exported Functions
group-onsemi 0:098463de4c5d 130 * @{
group-onsemi 0:098463de4c5d 131 */
group-onsemi 0:098463de4c5d 132
group-onsemi 0:098463de4c5d 133 /** @defgroup IWDG_Exported_Functions_Group1 Initialization and de-initialization functions
group-onsemi 0:098463de4c5d 134 * @brief Initialization and Configuration functions.
group-onsemi 0:098463de4c5d 135 *
group-onsemi 0:098463de4c5d 136 @verbatim
group-onsemi 0:098463de4c5d 137 ===============================================================================
group-onsemi 0:098463de4c5d 138 ##### Initialization and de-initialization functions #####
group-onsemi 0:098463de4c5d 139 ===============================================================================
group-onsemi 0:098463de4c5d 140 [..] This section provides functions allowing to:
group-onsemi 0:098463de4c5d 141 (+) Initialize the IWDG according to the specified parameters
group-onsemi 0:098463de4c5d 142 in the IWDG_InitTypeDef and create the associated handle
group-onsemi 0:098463de4c5d 143 (+) Initialize the IWDG MSP
group-onsemi 0:098463de4c5d 144 (+) DeInitialize IWDG MSP
group-onsemi 0:098463de4c5d 145
group-onsemi 0:098463de4c5d 146 @endverbatim
group-onsemi 0:098463de4c5d 147 * @{
group-onsemi 0:098463de4c5d 148 */
group-onsemi 0:098463de4c5d 149
group-onsemi 0:098463de4c5d 150 /**
group-onsemi 0:098463de4c5d 151 * @brief Initializes the IWDG according to the specified
group-onsemi 0:098463de4c5d 152 * parameters in the IWDG_InitTypeDef and creates the associated handle.
group-onsemi 0:098463de4c5d 153 * @param hiwdg: pointer to a IWDG_HandleTypeDef structure that contains
group-onsemi 0:098463de4c5d 154 * the configuration information for the specified IWDG module.
group-onsemi 0:098463de4c5d 155 * @retval HAL status
group-onsemi 0:098463de4c5d 156 */
group-onsemi 0:098463de4c5d 157 HAL_StatusTypeDef HAL_IWDG_Init(IWDG_HandleTypeDef *hiwdg)
group-onsemi 0:098463de4c5d 158 {
group-onsemi 0:098463de4c5d 159 /* Check the IWDG handle allocation */
group-onsemi 0:098463de4c5d 160 if(hiwdg == NULL)
group-onsemi 0:098463de4c5d 161 {
group-onsemi 0:098463de4c5d 162 return HAL_ERROR;
group-onsemi 0:098463de4c5d 163 }
group-onsemi 0:098463de4c5d 164
group-onsemi 0:098463de4c5d 165 /* Check the parameters */
group-onsemi 0:098463de4c5d 166 assert_param(IS_IWDG_ALL_INSTANCE(hiwdg->Instance));
group-onsemi 0:098463de4c5d 167 assert_param(IS_IWDG_PRESCALER(hiwdg->Init.Prescaler));
group-onsemi 0:098463de4c5d 168 assert_param(IS_IWDG_RELOAD(hiwdg->Init.Reload));
group-onsemi 0:098463de4c5d 169
group-onsemi 0:098463de4c5d 170 /* Check pending flag, if previous update not done, return error */
group-onsemi 0:098463de4c5d 171 if((__HAL_IWDG_GET_FLAG(hiwdg, IWDG_FLAG_PVU) != RESET)
group-onsemi 0:098463de4c5d 172 &&(__HAL_IWDG_GET_FLAG(hiwdg, IWDG_FLAG_RVU) != RESET))
group-onsemi 0:098463de4c5d 173 {
group-onsemi 0:098463de4c5d 174 return HAL_ERROR;
group-onsemi 0:098463de4c5d 175 }
group-onsemi 0:098463de4c5d 176
group-onsemi 0:098463de4c5d 177 if(hiwdg->State == HAL_IWDG_STATE_RESET)
group-onsemi 0:098463de4c5d 178 {
group-onsemi 0:098463de4c5d 179 /* Allocate lock resource and initialize it */
group-onsemi 0:098463de4c5d 180 hiwdg->Lock = HAL_UNLOCKED;
group-onsemi 0:098463de4c5d 181
group-onsemi 0:098463de4c5d 182 /* Init the low level hardware */
group-onsemi 0:098463de4c5d 183 HAL_IWDG_MspInit(hiwdg);
group-onsemi 0:098463de4c5d 184 }
group-onsemi 0:098463de4c5d 185
group-onsemi 0:098463de4c5d 186 /* Change IWDG peripheral state */
group-onsemi 0:098463de4c5d 187 hiwdg->State = HAL_IWDG_STATE_BUSY;
group-onsemi 0:098463de4c5d 188
group-onsemi 0:098463de4c5d 189 /* Enable write access to IWDG_PR and IWDG_RLR registers */
group-onsemi 0:098463de4c5d 190 IWDG_ENABLE_WRITE_ACCESS(hiwdg);
group-onsemi 0:098463de4c5d 191
group-onsemi 0:098463de4c5d 192 /* Write to IWDG registers the IWDG_Prescaler & IWDG_Reload values to work with */
group-onsemi 0:098463de4c5d 193 MODIFY_REG(hiwdg->Instance->PR, IWDG_PR_PR, hiwdg->Init.Prescaler);
group-onsemi 0:098463de4c5d 194 MODIFY_REG(hiwdg->Instance->RLR, IWDG_RLR_RL, hiwdg->Init.Reload);
group-onsemi 0:098463de4c5d 195
group-onsemi 0:098463de4c5d 196 /* Change IWDG peripheral state */
group-onsemi 0:098463de4c5d 197 hiwdg->State = HAL_IWDG_STATE_READY;
group-onsemi 0:098463de4c5d 198
group-onsemi 0:098463de4c5d 199 /* Return function status */
group-onsemi 0:098463de4c5d 200 return HAL_OK;
group-onsemi 0:098463de4c5d 201 }
group-onsemi 0:098463de4c5d 202
group-onsemi 0:098463de4c5d 203 /**
group-onsemi 0:098463de4c5d 204 * @brief Initializes the IWDG MSP.
group-onsemi 0:098463de4c5d 205 * @param hiwdg: pointer to a IWDG_HandleTypeDef structure that contains
group-onsemi 0:098463de4c5d 206 * the configuration information for the specified IWDG module.
group-onsemi 0:098463de4c5d 207 * @retval None
group-onsemi 0:098463de4c5d 208 */
group-onsemi 0:098463de4c5d 209 __weak void HAL_IWDG_MspInit(IWDG_HandleTypeDef *hiwdg)
group-onsemi 0:098463de4c5d 210 {
group-onsemi 0:098463de4c5d 211 /* Prevent unused argument(s) compilation warning */
group-onsemi 0:098463de4c5d 212 UNUSED(hiwdg);
group-onsemi 0:098463de4c5d 213 /* NOTE : This function Should not be modified, when the callback is needed,
group-onsemi 0:098463de4c5d 214 the HAL_IWDG_MspInit could be implemented in the user file
group-onsemi 0:098463de4c5d 215 */
group-onsemi 0:098463de4c5d 216 }
group-onsemi 0:098463de4c5d 217
group-onsemi 0:098463de4c5d 218 /**
group-onsemi 0:098463de4c5d 219 * @}
group-onsemi 0:098463de4c5d 220 */
group-onsemi 0:098463de4c5d 221
group-onsemi 0:098463de4c5d 222 /** @defgroup IWDG_Exported_Functions_Group2 IO operation functions
group-onsemi 0:098463de4c5d 223 * @brief IO operation functions
group-onsemi 0:098463de4c5d 224 *
group-onsemi 0:098463de4c5d 225 @verbatim
group-onsemi 0:098463de4c5d 226 ===============================================================================
group-onsemi 0:098463de4c5d 227 ##### IO operation functions #####
group-onsemi 0:098463de4c5d 228 ===============================================================================
group-onsemi 0:098463de4c5d 229 [..] This section provides functions allowing to:
group-onsemi 0:098463de4c5d 230 (+) Start the IWDG.
group-onsemi 0:098463de4c5d 231 (+) Refresh the IWDG.
group-onsemi 0:098463de4c5d 232
group-onsemi 0:098463de4c5d 233 @endverbatim
group-onsemi 0:098463de4c5d 234 * @{
group-onsemi 0:098463de4c5d 235 */
group-onsemi 0:098463de4c5d 236
group-onsemi 0:098463de4c5d 237 /**
group-onsemi 0:098463de4c5d 238 * @brief Starts the IWDG.
group-onsemi 0:098463de4c5d 239 * @param hiwdg: pointer to a IWDG_HandleTypeDef structure that contains
group-onsemi 0:098463de4c5d 240 * the configuration information for the specified IWDG module.
group-onsemi 0:098463de4c5d 241 * @retval HAL status
group-onsemi 0:098463de4c5d 242 */
group-onsemi 0:098463de4c5d 243 HAL_StatusTypeDef HAL_IWDG_Start(IWDG_HandleTypeDef *hiwdg)
group-onsemi 0:098463de4c5d 244 {
group-onsemi 0:098463de4c5d 245 /* Process Locked */
group-onsemi 0:098463de4c5d 246 __HAL_LOCK(hiwdg);
group-onsemi 0:098463de4c5d 247
group-onsemi 0:098463de4c5d 248 /* Change IWDG peripheral state */
group-onsemi 0:098463de4c5d 249 hiwdg->State = HAL_IWDG_STATE_BUSY;
group-onsemi 0:098463de4c5d 250
group-onsemi 0:098463de4c5d 251 /* Start the IWDG peripheral */
group-onsemi 0:098463de4c5d 252 __HAL_IWDG_START(hiwdg);
group-onsemi 0:098463de4c5d 253
group-onsemi 0:098463de4c5d 254 /* Reload IWDG counter with value defined in the RLR register */
group-onsemi 0:098463de4c5d 255 __HAL_IWDG_RELOAD_COUNTER(hiwdg);
group-onsemi 0:098463de4c5d 256
group-onsemi 0:098463de4c5d 257 /* Change IWDG peripheral state */
group-onsemi 0:098463de4c5d 258 hiwdg->State = HAL_IWDG_STATE_READY;
group-onsemi 0:098463de4c5d 259
group-onsemi 0:098463de4c5d 260 /* Process Unlocked */
group-onsemi 0:098463de4c5d 261 __HAL_UNLOCK(hiwdg);
group-onsemi 0:098463de4c5d 262
group-onsemi 0:098463de4c5d 263 /* Return function status */
group-onsemi 0:098463de4c5d 264 return HAL_OK;
group-onsemi 0:098463de4c5d 265 }
group-onsemi 0:098463de4c5d 266
group-onsemi 0:098463de4c5d 267 /**
group-onsemi 0:098463de4c5d 268 * @brief Refreshes the IWDG.
group-onsemi 0:098463de4c5d 269 * @param hiwdg: pointer to a IWDG_HandleTypeDef structure that contains
group-onsemi 0:098463de4c5d 270 * the configuration information for the specified IWDG module.
group-onsemi 0:098463de4c5d 271 * @retval HAL status
group-onsemi 0:098463de4c5d 272 */
group-onsemi 0:098463de4c5d 273 HAL_StatusTypeDef HAL_IWDG_Refresh(IWDG_HandleTypeDef *hiwdg)
group-onsemi 0:098463de4c5d 274 {
group-onsemi 0:098463de4c5d 275 uint32_t tickstart = 0;
group-onsemi 0:098463de4c5d 276
group-onsemi 0:098463de4c5d 277 /* Process Locked */
group-onsemi 0:098463de4c5d 278 __HAL_LOCK(hiwdg);
group-onsemi 0:098463de4c5d 279
group-onsemi 0:098463de4c5d 280 /* Change IWDG peripheral state */
group-onsemi 0:098463de4c5d 281 hiwdg->State = HAL_IWDG_STATE_BUSY;
group-onsemi 0:098463de4c5d 282
group-onsemi 0:098463de4c5d 283 tickstart = HAL_GetTick();
group-onsemi 0:098463de4c5d 284
group-onsemi 0:098463de4c5d 285 /* Wait until RVU flag is RESET */
group-onsemi 0:098463de4c5d 286 while(__HAL_IWDG_GET_FLAG(hiwdg, IWDG_FLAG_RVU) != RESET)
group-onsemi 0:098463de4c5d 287 {
group-onsemi 0:098463de4c5d 288 if((HAL_GetTick() - tickstart ) > IWDG_DEFAULT_TIMEOUT)
group-onsemi 0:098463de4c5d 289 {
group-onsemi 0:098463de4c5d 290 /* Set IWDG state */
group-onsemi 0:098463de4c5d 291 hiwdg->State = HAL_IWDG_STATE_TIMEOUT;
group-onsemi 0:098463de4c5d 292
group-onsemi 0:098463de4c5d 293 /* Process unlocked */
group-onsemi 0:098463de4c5d 294 __HAL_UNLOCK(hiwdg);
group-onsemi 0:098463de4c5d 295
group-onsemi 0:098463de4c5d 296 return HAL_TIMEOUT;
group-onsemi 0:098463de4c5d 297 }
group-onsemi 0:098463de4c5d 298 }
group-onsemi 0:098463de4c5d 299
group-onsemi 0:098463de4c5d 300 /* Reload IWDG counter with value defined in the reload register */
group-onsemi 0:098463de4c5d 301 __HAL_IWDG_RELOAD_COUNTER(hiwdg);
group-onsemi 0:098463de4c5d 302
group-onsemi 0:098463de4c5d 303 /* Change IWDG peripheral state */
group-onsemi 0:098463de4c5d 304 hiwdg->State = HAL_IWDG_STATE_READY;
group-onsemi 0:098463de4c5d 305
group-onsemi 0:098463de4c5d 306 /* Process Unlocked */
group-onsemi 0:098463de4c5d 307 __HAL_UNLOCK(hiwdg);
group-onsemi 0:098463de4c5d 308
group-onsemi 0:098463de4c5d 309 /* Return function status */
group-onsemi 0:098463de4c5d 310 return HAL_OK;
group-onsemi 0:098463de4c5d 311 }
group-onsemi 0:098463de4c5d 312
group-onsemi 0:098463de4c5d 313 /**
group-onsemi 0:098463de4c5d 314 * @}
group-onsemi 0:098463de4c5d 315 */
group-onsemi 0:098463de4c5d 316
group-onsemi 0:098463de4c5d 317 /** @defgroup IWDG_Exported_Functions_Group3 Peripheral State functions
group-onsemi 0:098463de4c5d 318 * @brief Peripheral State functions.
group-onsemi 0:098463de4c5d 319 *
group-onsemi 0:098463de4c5d 320 @verbatim
group-onsemi 0:098463de4c5d 321 ===============================================================================
group-onsemi 0:098463de4c5d 322 ##### Peripheral State functions #####
group-onsemi 0:098463de4c5d 323 ===============================================================================
group-onsemi 0:098463de4c5d 324 [..]
group-onsemi 0:098463de4c5d 325 This subsection permits to get in run-time the status of the peripheral
group-onsemi 0:098463de4c5d 326 and the data flow.
group-onsemi 0:098463de4c5d 327
group-onsemi 0:098463de4c5d 328 @endverbatim
group-onsemi 0:098463de4c5d 329 * @{
group-onsemi 0:098463de4c5d 330 */
group-onsemi 0:098463de4c5d 331
group-onsemi 0:098463de4c5d 332 /**
group-onsemi 0:098463de4c5d 333 * @brief Returns the IWDG state.
group-onsemi 0:098463de4c5d 334 * @param hiwdg: pointer to a IWDG_HandleTypeDef structure that contains
group-onsemi 0:098463de4c5d 335 * the configuration information for the specified IWDG module.
group-onsemi 0:098463de4c5d 336 * @retval HAL state
group-onsemi 0:098463de4c5d 337 */
group-onsemi 0:098463de4c5d 338 HAL_IWDG_StateTypeDef HAL_IWDG_GetState(IWDG_HandleTypeDef *hiwdg)
group-onsemi 0:098463de4c5d 339 {
group-onsemi 0:098463de4c5d 340 return hiwdg->State;
group-onsemi 0:098463de4c5d 341 }
group-onsemi 0:098463de4c5d 342
group-onsemi 0:098463de4c5d 343 /**
group-onsemi 0:098463de4c5d 344 * @}
group-onsemi 0:098463de4c5d 345 */
group-onsemi 0:098463de4c5d 346
group-onsemi 0:098463de4c5d 347 /**
group-onsemi 0:098463de4c5d 348 * @}
group-onsemi 0:098463de4c5d 349 */
group-onsemi 0:098463de4c5d 350
group-onsemi 0:098463de4c5d 351 #endif /* HAL_IWDG_MODULE_ENABLED */
group-onsemi 0:098463de4c5d 352 /**
group-onsemi 0:098463de4c5d 353 * @}
group-onsemi 0:098463de4c5d 354 */
group-onsemi 0:098463de4c5d 355
group-onsemi 0:098463de4c5d 356 /**
group-onsemi 0:098463de4c5d 357 * @}
group-onsemi 0:098463de4c5d 358 */
group-onsemi 0:098463de4c5d 359
group-onsemi 0:098463de4c5d 360 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/