mbed library sources
Dependents: frdm_kl05z_gpio_test
Fork of mbed-src by
targets/cmsis/TARGET_STM/TARGET_NUCLEO_F401RE/stm32f4xx_hal_iwdg.c@106:ced8cbb51063, 2014-02-26 (annotated)
- Committer:
- mbed_official
- Date:
- Wed Feb 26 09:45:12 2014 +0000
- Revision:
- 106:ced8cbb51063
- Parent:
- 87:085cde657901
- Child:
- 226:b062af740e40
Synchronized with git revision 4222735eff5868389433f0e9271976b39c8115cd
Full URL: https://github.com/mbedmicro/mbed/commit/4222735eff5868389433f0e9271976b39c8115cd/
[NUCLEO_xxx] Update STM32CubeF4 driver V1.0.0 + update license
Who changed what in which revision?
User | Revision | Line number | New 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 | 106:ced8cbb51063 | 5 | * @version V1.0.0 |
mbed_official | 106:ced8cbb51063 | 6 | * @date 18-February-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 | 87:085cde657901 | 47 | (+) Use IWDG using HAL_IWDG_Start() function to: |
mbed_official | 87:085cde657901 | 48 | (++) Enable write access to IWDG_PR and IWDG_RLR registers. |
mbed_official | 87:085cde657901 | 49 | (++) Configure the IWDG prescaler and counter reload values. |
mbed_official | 87:085cde657901 | 50 | (++) Reload IWDG counter with value defined in the IWDG_RLR register. |
mbed_official | 87:085cde657901 | 51 | (++) Start the IWDG, when the IWDG is used in software mode (no need |
mbed_official | 87:085cde657901 | 52 | to enable the LSI, it will be enabled by hardware). |
mbed_official | 87:085cde657901 | 53 | (+) Then the application program must refresh the IWDG counter at regular |
mbed_official | 87:085cde657901 | 54 | intervals during normal operation to prevent an MCU reset, using |
mbed_official | 87:085cde657901 | 55 | HAL_IWDG_Refresh() function. |
mbed_official | 87:085cde657901 | 56 | |
mbed_official | 87:085cde657901 | 57 | *** IWDG HAL driver macros list *** |
mbed_official | 87:085cde657901 | 58 | ==================================== |
mbed_official | 87:085cde657901 | 59 | [..] |
mbed_official | 87:085cde657901 | 60 | Below the list of most used macros in IWDG HAL driver. |
mbed_official | 87:085cde657901 | 61 | |
mbed_official | 87:085cde657901 | 62 | (+) __HAL_IWDG_START: Enable the IWDG peripheral |
mbed_official | 87:085cde657901 | 63 | (+) __HAL_IWDG_RELOAD_COUNTER: Reloads IWDG counter with value defined in the reload register |
mbed_official | 87:085cde657901 | 64 | (+) __HAL_IWDG_ENABLE_WRITE_ACCESS : Enable write access to IWDG_PR and IWDG_RLR registers |
mbed_official | 87:085cde657901 | 65 | (+) __HAL_IWDG_DISABLE_WRITE_ACCESS : Disable write access to IWDG_PR and IWDG_RLR registers |
mbed_official | 87:085cde657901 | 66 | (+) __HAL_IWDG_GET_FLAG: Get the selected IWDG's flag status |
mbed_official | 87:085cde657901 | 67 | (+) __HAL_IWDG_CLEAR_FLAG: Clear the IWDG's pending flags |
mbed_official | 87:085cde657901 | 68 | |
mbed_official | 87:085cde657901 | 69 | @endverbatim |
mbed_official | 87:085cde657901 | 70 | ****************************************************************************** |
mbed_official | 87:085cde657901 | 71 | * @attention |
mbed_official | 87:085cde657901 | 72 | * |
mbed_official | 87:085cde657901 | 73 | * <h2><center>© COPYRIGHT(c) 2014 STMicroelectronics</center></h2> |
mbed_official | 87:085cde657901 | 74 | * |
mbed_official | 87:085cde657901 | 75 | * Redistribution and use in source and binary forms, with or without modification, |
mbed_official | 87:085cde657901 | 76 | * are permitted provided that the following conditions are met: |
mbed_official | 87:085cde657901 | 77 | * 1. Redistributions of source code must retain the above copyright notice, |
mbed_official | 87:085cde657901 | 78 | * this list of conditions and the following disclaimer. |
mbed_official | 87:085cde657901 | 79 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
mbed_official | 87:085cde657901 | 80 | * this list of conditions and the following disclaimer in the documentation |
mbed_official | 87:085cde657901 | 81 | * and/or other materials provided with the distribution. |
mbed_official | 87:085cde657901 | 82 | * 3. Neither the name of STMicroelectronics nor the names of its contributors |
mbed_official | 87:085cde657901 | 83 | * may be used to endorse or promote products derived from this software |
mbed_official | 87:085cde657901 | 84 | * without specific prior written permission. |
mbed_official | 87:085cde657901 | 85 | * |
mbed_official | 87:085cde657901 | 86 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
mbed_official | 87:085cde657901 | 87 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
mbed_official | 87:085cde657901 | 88 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
mbed_official | 87:085cde657901 | 89 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
mbed_official | 87:085cde657901 | 90 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
mbed_official | 87:085cde657901 | 91 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
mbed_official | 87:085cde657901 | 92 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
mbed_official | 87:085cde657901 | 93 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
mbed_official | 87:085cde657901 | 94 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
mbed_official | 87:085cde657901 | 95 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
mbed_official | 87:085cde657901 | 96 | * |
mbed_official | 87:085cde657901 | 97 | ****************************************************************************** |
mbed_official | 87:085cde657901 | 98 | */ |
mbed_official | 87:085cde657901 | 99 | |
mbed_official | 87:085cde657901 | 100 | /* Includes ------------------------------------------------------------------*/ |
mbed_official | 87:085cde657901 | 101 | #include "stm32f4xx_hal.h" |
mbed_official | 87:085cde657901 | 102 | |
mbed_official | 87:085cde657901 | 103 | /** @addtogroup STM32F4xx_HAL_Driver |
mbed_official | 87:085cde657901 | 104 | * @{ |
mbed_official | 87:085cde657901 | 105 | */ |
mbed_official | 87:085cde657901 | 106 | |
mbed_official | 87:085cde657901 | 107 | /** @defgroup IWDG |
mbed_official | 87:085cde657901 | 108 | * @brief IWDG HAL module driver. |
mbed_official | 87:085cde657901 | 109 | * @{ |
mbed_official | 87:085cde657901 | 110 | */ |
mbed_official | 87:085cde657901 | 111 | |
mbed_official | 87:085cde657901 | 112 | #ifdef HAL_IWDG_MODULE_ENABLED |
mbed_official | 87:085cde657901 | 113 | |
mbed_official | 87:085cde657901 | 114 | /* Private typedef -----------------------------------------------------------*/ |
mbed_official | 87:085cde657901 | 115 | /* Private define ------------------------------------------------------------*/ |
mbed_official | 87:085cde657901 | 116 | /* Private macro -------------------------------------------------------------*/ |
mbed_official | 87:085cde657901 | 117 | /* Private variables ---------------------------------------------------------*/ |
mbed_official | 87:085cde657901 | 118 | /* Private function prototypes -----------------------------------------------*/ |
mbed_official | 87:085cde657901 | 119 | /* Private functions ---------------------------------------------------------*/ |
mbed_official | 87:085cde657901 | 120 | |
mbed_official | 87:085cde657901 | 121 | /** @defgroup IWDG_Private_Functions |
mbed_official | 87:085cde657901 | 122 | * @{ |
mbed_official | 87:085cde657901 | 123 | */ |
mbed_official | 87:085cde657901 | 124 | |
mbed_official | 87:085cde657901 | 125 | /** @defgroup IWDG_Group1 Initialization and de-initialization functions |
mbed_official | 87:085cde657901 | 126 | * @brief Initialization and Configuration functions. |
mbed_official | 87:085cde657901 | 127 | * |
mbed_official | 87:085cde657901 | 128 | @verbatim |
mbed_official | 87:085cde657901 | 129 | =============================================================================== |
mbed_official | 87:085cde657901 | 130 | ##### Initialization and de-initialization functions ##### |
mbed_official | 87:085cde657901 | 131 | =============================================================================== |
mbed_official | 87:085cde657901 | 132 | [..] This section provides functions allowing to: |
mbed_official | 87:085cde657901 | 133 | (+) Initialize the IWDG according to the specified parameters |
mbed_official | 87:085cde657901 | 134 | in the IWDG_InitTypeDef and create the associated handle |
mbed_official | 87:085cde657901 | 135 | (+) Initialize the IWDG MSP |
mbed_official | 87:085cde657901 | 136 | (+) DeInitialize IWDG MSP |
mbed_official | 87:085cde657901 | 137 | |
mbed_official | 87:085cde657901 | 138 | @endverbatim |
mbed_official | 87:085cde657901 | 139 | * @{ |
mbed_official | 87:085cde657901 | 140 | */ |
mbed_official | 87:085cde657901 | 141 | |
mbed_official | 87:085cde657901 | 142 | /** |
mbed_official | 87:085cde657901 | 143 | * @brief Initializes the IWDG according to the specified |
mbed_official | 87:085cde657901 | 144 | * parameters in the IWDG_InitTypeDef and creates the associated handle. |
mbed_official | 87:085cde657901 | 145 | * @param hiwdg: IWDG handle |
mbed_official | 87:085cde657901 | 146 | * @retval HAL status |
mbed_official | 87:085cde657901 | 147 | */ |
mbed_official | 87:085cde657901 | 148 | HAL_StatusTypeDef HAL_IWDG_Init(IWDG_HandleTypeDef *hiwdg) |
mbed_official | 87:085cde657901 | 149 | { |
mbed_official | 87:085cde657901 | 150 | uint32_t tmp; |
mbed_official | 87:085cde657901 | 151 | |
mbed_official | 87:085cde657901 | 152 | /* Check the IWDG handle allocation */ |
mbed_official | 87:085cde657901 | 153 | if(hiwdg == NULL) |
mbed_official | 87:085cde657901 | 154 | { |
mbed_official | 87:085cde657901 | 155 | return HAL_ERROR; |
mbed_official | 87:085cde657901 | 156 | } |
mbed_official | 87:085cde657901 | 157 | |
mbed_official | 87:085cde657901 | 158 | /* Check the parameters */ |
mbed_official | 87:085cde657901 | 159 | assert_param(IS_IWDG_PRESCALER(hiwdg->Init.Prescaler)); |
mbed_official | 87:085cde657901 | 160 | assert_param(IS_IWDG_RELOAD(hiwdg->Init.Reload)); |
mbed_official | 87:085cde657901 | 161 | |
mbed_official | 87:085cde657901 | 162 | if(hiwdg->State == HAL_IWDG_STATE_RESET) |
mbed_official | 87:085cde657901 | 163 | { |
mbed_official | 87:085cde657901 | 164 | /* Init the low level hardware */ |
mbed_official | 87:085cde657901 | 165 | HAL_IWDG_MspInit(hiwdg); |
mbed_official | 87:085cde657901 | 166 | } |
mbed_official | 87:085cde657901 | 167 | |
mbed_official | 87:085cde657901 | 168 | /* Change IWDG peripheral state */ |
mbed_official | 87:085cde657901 | 169 | hiwdg->State = HAL_IWDG_STATE_BUSY; |
mbed_official | 87:085cde657901 | 170 | |
mbed_official | 87:085cde657901 | 171 | /* Set IWDG counter clock prescaler */ |
mbed_official | 87:085cde657901 | 172 | /* Get the PR register value */ |
mbed_official | 87:085cde657901 | 173 | tmp = hiwdg->Instance->PR; |
mbed_official | 87:085cde657901 | 174 | |
mbed_official | 87:085cde657901 | 175 | /* Clear PR[2:0] bits */ |
mbed_official | 87:085cde657901 | 176 | tmp &= ((uint32_t)~(IWDG_PR_PR)); |
mbed_official | 87:085cde657901 | 177 | |
mbed_official | 87:085cde657901 | 178 | /* Prepare the IWDG Prescaler parameter */ |
mbed_official | 87:085cde657901 | 179 | tmp |= hiwdg->Init.Prescaler; |
mbed_official | 87:085cde657901 | 180 | |
mbed_official | 87:085cde657901 | 181 | /* Enable write access to IWDG_PR and IWDG_RLR registers */ |
mbed_official | 87:085cde657901 | 182 | __HAL_IWDG_ENABLE_WRITE_ACCESS(hiwdg); |
mbed_official | 87:085cde657901 | 183 | |
mbed_official | 87:085cde657901 | 184 | /* Write to IWDG PR */ |
mbed_official | 87:085cde657901 | 185 | hiwdg->Instance->PR = tmp; |
mbed_official | 87:085cde657901 | 186 | |
mbed_official | 87:085cde657901 | 187 | /* Set IWDG counter reload value */ |
mbed_official | 87:085cde657901 | 188 | /* Get the RLR register value */ |
mbed_official | 87:085cde657901 | 189 | tmp = hiwdg->Instance->RLR; |
mbed_official | 87:085cde657901 | 190 | |
mbed_official | 87:085cde657901 | 191 | /* Clear RL[11:0] bits */ |
mbed_official | 87:085cde657901 | 192 | tmp &= ((uint32_t)~(IWDG_RLR_RL)); |
mbed_official | 87:085cde657901 | 193 | |
mbed_official | 87:085cde657901 | 194 | /* Prepare the IWDG Prescaler parameter */ |
mbed_official | 87:085cde657901 | 195 | tmp |= hiwdg->Init.Reload; |
mbed_official | 87:085cde657901 | 196 | |
mbed_official | 87:085cde657901 | 197 | /* Write to IWDG RLR */ |
mbed_official | 87:085cde657901 | 198 | hiwdg->Instance->RLR = tmp; |
mbed_official | 87:085cde657901 | 199 | |
mbed_official | 87:085cde657901 | 200 | /* Change IWDG peripheral state */ |
mbed_official | 87:085cde657901 | 201 | hiwdg->State = HAL_IWDG_STATE_READY; |
mbed_official | 87:085cde657901 | 202 | |
mbed_official | 87:085cde657901 | 203 | /* Return function status */ |
mbed_official | 87:085cde657901 | 204 | return HAL_OK; |
mbed_official | 87:085cde657901 | 205 | } |
mbed_official | 87:085cde657901 | 206 | |
mbed_official | 87:085cde657901 | 207 | /** |
mbed_official | 87:085cde657901 | 208 | * @brief Initializes the IWDG MSP. |
mbed_official | 87:085cde657901 | 209 | * @param hiwdg: IWDG handle |
mbed_official | 87:085cde657901 | 210 | * @retval None |
mbed_official | 87:085cde657901 | 211 | */ |
mbed_official | 87:085cde657901 | 212 | __weak void HAL_IWDG_MspInit(IWDG_HandleTypeDef *hiwdg) |
mbed_official | 87:085cde657901 | 213 | { |
mbed_official | 87:085cde657901 | 214 | /* NOTE : This function Should not be modified, when the callback is needed, |
mbed_official | 87:085cde657901 | 215 | the HAL_IWDG_MspInit could be implemented in the user file |
mbed_official | 87:085cde657901 | 216 | */ |
mbed_official | 87:085cde657901 | 217 | } |
mbed_official | 87:085cde657901 | 218 | |
mbed_official | 87:085cde657901 | 219 | /** |
mbed_official | 87:085cde657901 | 220 | * @} |
mbed_official | 87:085cde657901 | 221 | */ |
mbed_official | 87:085cde657901 | 222 | |
mbed_official | 87:085cde657901 | 223 | /** @defgroup IWDG_Group2 IO operation functions |
mbed_official | 87:085cde657901 | 224 | * @brief IO operation functions |
mbed_official | 87:085cde657901 | 225 | * |
mbed_official | 87:085cde657901 | 226 | @verbatim |
mbed_official | 87:085cde657901 | 227 | =============================================================================== |
mbed_official | 87:085cde657901 | 228 | ##### IO operation functions ##### |
mbed_official | 87:085cde657901 | 229 | =============================================================================== |
mbed_official | 87:085cde657901 | 230 | [..] This section provides functions allowing to: |
mbed_official | 87:085cde657901 | 231 | (+) Start the IWDG. |
mbed_official | 87:085cde657901 | 232 | (+) Refresh the IWDG. |
mbed_official | 87:085cde657901 | 233 | |
mbed_official | 87:085cde657901 | 234 | @endverbatim |
mbed_official | 87:085cde657901 | 235 | * @{ |
mbed_official | 87:085cde657901 | 236 | */ |
mbed_official | 87:085cde657901 | 237 | |
mbed_official | 87:085cde657901 | 238 | /** |
mbed_official | 87:085cde657901 | 239 | * @brief Starts the IWDG. |
mbed_official | 87:085cde657901 | 240 | * @param hiwdg: IWDG handle |
mbed_official | 87:085cde657901 | 241 | * @retval HAL status |
mbed_official | 87:085cde657901 | 242 | */ |
mbed_official | 87:085cde657901 | 243 | HAL_StatusTypeDef HAL_IWDG_Start(IWDG_HandleTypeDef *hiwdg) |
mbed_official | 87:085cde657901 | 244 | { |
mbed_official | 87:085cde657901 | 245 | /* Process Locked */ |
mbed_official | 87:085cde657901 | 246 | __HAL_LOCK(hiwdg); |
mbed_official | 87:085cde657901 | 247 | |
mbed_official | 87:085cde657901 | 248 | /* Change IWDG peripheral state */ |
mbed_official | 87:085cde657901 | 249 | hiwdg->State = HAL_IWDG_STATE_BUSY; |
mbed_official | 87:085cde657901 | 250 | |
mbed_official | 87:085cde657901 | 251 | /* Start the IWDG peripheral */ |
mbed_official | 87:085cde657901 | 252 | __HAL_IWDG_START(hiwdg); |
mbed_official | 87:085cde657901 | 253 | |
mbed_official | 87:085cde657901 | 254 | /* Reload IWDG counter with value defined in the RLR register */ |
mbed_official | 87:085cde657901 | 255 | __HAL_IWDG_RELOAD_COUNTER(hiwdg); |
mbed_official | 87:085cde657901 | 256 | |
mbed_official | 87:085cde657901 | 257 | /* Change IWDG peripheral state */ |
mbed_official | 87:085cde657901 | 258 | hiwdg->State = HAL_IWDG_STATE_READY; |
mbed_official | 87:085cde657901 | 259 | |
mbed_official | 87:085cde657901 | 260 | /* Process Unlocked */ |
mbed_official | 87:085cde657901 | 261 | __HAL_UNLOCK(hiwdg); |
mbed_official | 87:085cde657901 | 262 | |
mbed_official | 87:085cde657901 | 263 | /* Return function status */ |
mbed_official | 87:085cde657901 | 264 | return HAL_OK; |
mbed_official | 87:085cde657901 | 265 | } |
mbed_official | 87:085cde657901 | 266 | |
mbed_official | 87:085cde657901 | 267 | /** |
mbed_official | 87:085cde657901 | 268 | * @brief Refreshes the IWDG. |
mbed_official | 87:085cde657901 | 269 | * @param hiwdg: IWDG handle |
mbed_official | 87:085cde657901 | 270 | * @retval HAL status |
mbed_official | 87:085cde657901 | 271 | */ |
mbed_official | 87:085cde657901 | 272 | HAL_StatusTypeDef HAL_IWDG_Refresh(IWDG_HandleTypeDef *hiwdg) |
mbed_official | 87:085cde657901 | 273 | { |
mbed_official | 87:085cde657901 | 274 | /* Process Locked */ |
mbed_official | 87:085cde657901 | 275 | __HAL_LOCK(hiwdg); |
mbed_official | 87:085cde657901 | 276 | |
mbed_official | 87:085cde657901 | 277 | /* Change IWDG peripheral state */ |
mbed_official | 87:085cde657901 | 278 | hiwdg->State = HAL_IWDG_STATE_BUSY; |
mbed_official | 87:085cde657901 | 279 | |
mbed_official | 87:085cde657901 | 280 | /* Clear the RVU flag */ |
mbed_official | 87:085cde657901 | 281 | __HAL_IWDG_CLEAR_FLAG(hiwdg, IWDG_FLAG_RVU); |
mbed_official | 87:085cde657901 | 282 | |
mbed_official | 87:085cde657901 | 283 | /* Reload IWDG counter with value defined in the reload register */ |
mbed_official | 87:085cde657901 | 284 | __HAL_IWDG_RELOAD_COUNTER(hiwdg); |
mbed_official | 87:085cde657901 | 285 | |
mbed_official | 87:085cde657901 | 286 | /* Change IWDG peripheral state */ |
mbed_official | 87:085cde657901 | 287 | hiwdg->State = HAL_IWDG_STATE_READY; |
mbed_official | 87:085cde657901 | 288 | |
mbed_official | 87:085cde657901 | 289 | /* Process Unlocked */ |
mbed_official | 87:085cde657901 | 290 | __HAL_UNLOCK(hiwdg); |
mbed_official | 87:085cde657901 | 291 | |
mbed_official | 87:085cde657901 | 292 | /* Return function status */ |
mbed_official | 87:085cde657901 | 293 | return HAL_OK; |
mbed_official | 87:085cde657901 | 294 | } |
mbed_official | 87:085cde657901 | 295 | |
mbed_official | 87:085cde657901 | 296 | /** |
mbed_official | 87:085cde657901 | 297 | * @} |
mbed_official | 87:085cde657901 | 298 | */ |
mbed_official | 87:085cde657901 | 299 | |
mbed_official | 87:085cde657901 | 300 | /** @defgroup IWDG_Group3 Peripheral State functions |
mbed_official | 87:085cde657901 | 301 | * @brief Peripheral State functions. |
mbed_official | 87:085cde657901 | 302 | * |
mbed_official | 87:085cde657901 | 303 | @verbatim |
mbed_official | 87:085cde657901 | 304 | =============================================================================== |
mbed_official | 87:085cde657901 | 305 | ##### Peripheral State functions ##### |
mbed_official | 87:085cde657901 | 306 | =============================================================================== |
mbed_official | 87:085cde657901 | 307 | [..] |
mbed_official | 87:085cde657901 | 308 | This subsection permits to get in run-time the status of the peripheral |
mbed_official | 87:085cde657901 | 309 | and the data flow. |
mbed_official | 87:085cde657901 | 310 | |
mbed_official | 87:085cde657901 | 311 | @endverbatim |
mbed_official | 87:085cde657901 | 312 | * @{ |
mbed_official | 87:085cde657901 | 313 | */ |
mbed_official | 87:085cde657901 | 314 | |
mbed_official | 87:085cde657901 | 315 | /** |
mbed_official | 87:085cde657901 | 316 | * @brief Returns the IWDG state. |
mbed_official | 87:085cde657901 | 317 | * @param hiwdg: IWDG handle |
mbed_official | 87:085cde657901 | 318 | * @retval HAL state |
mbed_official | 87:085cde657901 | 319 | */ |
mbed_official | 87:085cde657901 | 320 | HAL_IWDG_StateTypeDef HAL_IWDG_GetState(IWDG_HandleTypeDef *hiwdg) |
mbed_official | 87:085cde657901 | 321 | { |
mbed_official | 87:085cde657901 | 322 | return hiwdg->State; |
mbed_official | 87:085cde657901 | 323 | } |
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 | |
mbed_official | 87:085cde657901 | 329 | /** |
mbed_official | 87:085cde657901 | 330 | * @} |
mbed_official | 87:085cde657901 | 331 | */ |
mbed_official | 87:085cde657901 | 332 | |
mbed_official | 87:085cde657901 | 333 | #endif /* HAL_IWDG_MODULE_ENABLED */ |
mbed_official | 87:085cde657901 | 334 | /** |
mbed_official | 87:085cde657901 | 335 | * @} |
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 | /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |