shao ziyang / mbed-src-kl05

mbed library sources

Dependents:   frdm_kl05z_gpio_test

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targets/cmsis/TARGET_STM/TARGET_STM32F407VG/stm32f4xx_hal_crc.c@323:9e901b0a5aa1, 2014-09-13 (annotated)

Committer:
shaoziyang
Date:
Sat Sep 13 14:25:46 2014 +0000
Revision:
323:9e901b0a5aa1
Parent:
296:ec1b66a3d094 
test with CLOCK_SETUP = 0

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 133:d4dda5c437f0 1 /**
mbed_official 133:d4dda5c437f0 2 ******************************************************************************
mbed_official 133:d4dda5c437f0 3 * @file stm32f4xx_hal_crc.c
mbed_official 133:d4dda5c437f0 4 * @author MCD Application Team
mbed_official 242:7074e42da0b2 5 * @version V1.1.0RC2
mbed_official 242:7074e42da0b2 6 * @date 14-May-2014
mbed_official 133:d4dda5c437f0 7 * @brief CRC HAL module driver.
mbed_official 133:d4dda5c437f0 8 * This file provides firmware functions to manage the following
mbed_official 133:d4dda5c437f0 9 * functionalities of the Cyclic Redundancy Check (CRC) peripheral:
mbed_official 133:d4dda5c437f0 10 * + Initialization and de-initialization functions
mbed_official 133:d4dda5c437f0 11 * + Peripheral Control functions
mbed_official 133:d4dda5c437f0 12 * + Peripheral State functions
mbed_official 133:d4dda5c437f0 13 *
mbed_official 133:d4dda5c437f0 14 @verbatim
mbed_official 133:d4dda5c437f0 15 ==============================================================================
mbed_official 133:d4dda5c437f0 16 ##### How to use this driver #####
mbed_official 133:d4dda5c437f0 17 ==============================================================================
mbed_official 133:d4dda5c437f0 18 [..]
mbed_official 133:d4dda5c437f0 19 The CRC HAL driver can be used as follows:
mbed_official 133:d4dda5c437f0 20
mbed_official 133:d4dda5c437f0 21 (#) Enable CRC AHB clock using __CRC_CLK_ENABLE();
mbed_official 133:d4dda5c437f0 22
mbed_official 133:d4dda5c437f0 23 (#) Use HAL_CRC_Accumulate() function to compute the CRC value of
mbed_official 133:d4dda5c437f0 24 a 32-bit data buffer using combination of the previous CRC value
mbed_official 133:d4dda5c437f0 25 and the new one.
mbed_official 133:d4dda5c437f0 26
mbed_official 133:d4dda5c437f0 27 (#) Use HAL_CRC_Calculate() function to compute the CRC Value of
mbed_official 133:d4dda5c437f0 28 a new 32-bit data buffer. This function resets the CRC computation
mbed_official 133:d4dda5c437f0 29 unit before starting the computation to avoid getting wrong CRC values.
mbed_official 133:d4dda5c437f0 30
mbed_official 133:d4dda5c437f0 31 @endverbatim
mbed_official 133:d4dda5c437f0 32 ******************************************************************************
mbed_official 133:d4dda5c437f0 33 * @attention
mbed_official 133:d4dda5c437f0 34 *
mbed_official 133:d4dda5c437f0 35 * <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
mbed_official 133:d4dda5c437f0 36 *
mbed_official 133:d4dda5c437f0 37 * Redistribution and use in source and binary forms, with or without modification,
mbed_official 133:d4dda5c437f0 38 * are permitted provided that the following conditions are met:
mbed_official 133:d4dda5c437f0 39 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 133:d4dda5c437f0 40 * this list of conditions and the following disclaimer.
mbed_official 133:d4dda5c437f0 41 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 133:d4dda5c437f0 42 * this list of conditions and the following disclaimer in the documentation
mbed_official 133:d4dda5c437f0 43 * and/or other materials provided with the distribution.
mbed_official 133:d4dda5c437f0 44 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 133:d4dda5c437f0 45 * may be used to endorse or promote products derived from this software
mbed_official 133:d4dda5c437f0 46 * without specific prior written permission.
mbed_official 133:d4dda5c437f0 47 *
mbed_official 133:d4dda5c437f0 48 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 133:d4dda5c437f0 49 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 133:d4dda5c437f0 50 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 133:d4dda5c437f0 51 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 133:d4dda5c437f0 52 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 133:d4dda5c437f0 53 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 133:d4dda5c437f0 54 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 133:d4dda5c437f0 55 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 133:d4dda5c437f0 56 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 133:d4dda5c437f0 57 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 133:d4dda5c437f0 58 *
mbed_official 133:d4dda5c437f0 59 ******************************************************************************
mbed_official 133:d4dda5c437f0 60 */
mbed_official 133:d4dda5c437f0 61
mbed_official 133:d4dda5c437f0 62 /* Includes ------------------------------------------------------------------*/
mbed_official 133:d4dda5c437f0 63 #include "stm32f4xx_hal.h"
mbed_official 133:d4dda5c437f0 64
mbed_official 133:d4dda5c437f0 65 /** @addtogroup STM32F4xx_HAL_Driver
mbed_official 133:d4dda5c437f0 66 * @{
mbed_official 133:d4dda5c437f0 67 */
mbed_official 133:d4dda5c437f0 68
mbed_official 133:d4dda5c437f0 69 /** @defgroup CRC
mbed_official 133:d4dda5c437f0 70 * @brief CRC HAL module driver.
mbed_official 133:d4dda5c437f0 71 * @{
mbed_official 133:d4dda5c437f0 72 */
mbed_official 133:d4dda5c437f0 73
mbed_official 133:d4dda5c437f0 74 #ifdef HAL_CRC_MODULE_ENABLED
mbed_official 133:d4dda5c437f0 75
mbed_official 133:d4dda5c437f0 76 /* Private typedef -----------------------------------------------------------*/
mbed_official 133:d4dda5c437f0 77 /* Private define ------------------------------------------------------------*/
mbed_official 133:d4dda5c437f0 78 /* Private macro -------------------------------------------------------------*/
mbed_official 133:d4dda5c437f0 79 /* Private variables ---------------------------------------------------------*/
mbed_official 133:d4dda5c437f0 80 /* Private function prototypes -----------------------------------------------*/
mbed_official 133:d4dda5c437f0 81 /* Private functions ---------------------------------------------------------*/
mbed_official 133:d4dda5c437f0 82
mbed_official 133:d4dda5c437f0 83 /** @defgroup CRC_Private_Functions
mbed_official 133:d4dda5c437f0 84 * @{
mbed_official 133:d4dda5c437f0 85 */
mbed_official 133:d4dda5c437f0 86
mbed_official 133:d4dda5c437f0 87 /** @defgroup CRC_Group1 Initialization and de-initialization functions
mbed_official 133:d4dda5c437f0 88 * @brief Initialization and Configuration functions.
mbed_official 133:d4dda5c437f0 89 *
mbed_official 133:d4dda5c437f0 90 @verbatim
mbed_official 133:d4dda5c437f0 91 ==============================================================================
mbed_official 133:d4dda5c437f0 92 ##### Initialization and de-initialization functions #####
mbed_official 133:d4dda5c437f0 93 ==============================================================================
mbed_official 133:d4dda5c437f0 94 [..] This section provides functions allowing to:
mbed_official 133:d4dda5c437f0 95 (+) Initialize the CRC according to the specified parameters
mbed_official 133:d4dda5c437f0 96 in the CRC_InitTypeDef and create the associated handle
mbed_official 133:d4dda5c437f0 97 (+) DeInitialize the CRC peripheral
mbed_official 133:d4dda5c437f0 98 (+) Initialize the CRC MSP
mbed_official 133:d4dda5c437f0 99 (+) DeInitialize CRC MSP
mbed_official 133:d4dda5c437f0 100
mbed_official 133:d4dda5c437f0 101 @endverbatim
mbed_official 133:d4dda5c437f0 102 * @{
mbed_official 133:d4dda5c437f0 103 */
mbed_official 133:d4dda5c437f0 104
mbed_official 133:d4dda5c437f0 105 /**
mbed_official 133:d4dda5c437f0 106 * @brief Initializes the CRC according to the specified
mbed_official 133:d4dda5c437f0 107 * parameters in the CRC_InitTypeDef and creates the associated handle.
mbed_official 242:7074e42da0b2 108 * @param hcrc: pointer to a CRC_HandleTypeDef structure that contains
mbed_official 242:7074e42da0b2 109 * the configuration information for CRC
mbed_official 133:d4dda5c437f0 110 * @retval HAL status
mbed_official 133:d4dda5c437f0 111 */
mbed_official 133:d4dda5c437f0 112 HAL_StatusTypeDef HAL_CRC_Init(CRC_HandleTypeDef *hcrc)
mbed_official 133:d4dda5c437f0 113 {
mbed_official 133:d4dda5c437f0 114 /* Check the CRC handle allocation */
mbed_official 133:d4dda5c437f0 115 if(hcrc == NULL)
mbed_official 133:d4dda5c437f0 116 {
mbed_official 133:d4dda5c437f0 117 return HAL_ERROR;
mbed_official 133:d4dda5c437f0 118 }
mbed_official 133:d4dda5c437f0 119
mbed_official 133:d4dda5c437f0 120 /* Check the parameters */
mbed_official 133:d4dda5c437f0 121 assert_param(IS_CRC_ALL_INSTANCE(hcrc->Instance));
mbed_official 133:d4dda5c437f0 122
mbed_official 133:d4dda5c437f0 123 if(hcrc->State == HAL_CRC_STATE_RESET)
mbed_official 133:d4dda5c437f0 124 {
mbed_official 133:d4dda5c437f0 125 /* Init the low level hardware */
mbed_official 133:d4dda5c437f0 126 HAL_CRC_MspInit(hcrc);
mbed_official 133:d4dda5c437f0 127 }
mbed_official 133:d4dda5c437f0 128
mbed_official 133:d4dda5c437f0 129 /* Change CRC peripheral state */
mbed_official 133:d4dda5c437f0 130 hcrc->State = HAL_CRC_STATE_BUSY;
mbed_official 133:d4dda5c437f0 131
mbed_official 133:d4dda5c437f0 132 /* Change CRC peripheral state */
mbed_official 133:d4dda5c437f0 133 hcrc->State = HAL_CRC_STATE_READY;
mbed_official 133:d4dda5c437f0 134
mbed_official 133:d4dda5c437f0 135 /* Return function status */
mbed_official 133:d4dda5c437f0 136 return HAL_OK;
mbed_official 133:d4dda5c437f0 137 }
mbed_official 133:d4dda5c437f0 138
mbed_official 133:d4dda5c437f0 139 /**
mbed_official 133:d4dda5c437f0 140 * @brief DeInitializes the CRC peripheral.
mbed_official 242:7074e42da0b2 141 * @param hcrc: pointer to a CRC_HandleTypeDef structure that contains
mbed_official 242:7074e42da0b2 142 * the configuration information for CRC
mbed_official 133:d4dda5c437f0 143 * @retval HAL status
mbed_official 133:d4dda5c437f0 144 */
mbed_official 133:d4dda5c437f0 145 HAL_StatusTypeDef HAL_CRC_DeInit(CRC_HandleTypeDef *hcrc)
mbed_official 133:d4dda5c437f0 146 {
mbed_official 133:d4dda5c437f0 147 /* Check the CRC handle allocation */
mbed_official 133:d4dda5c437f0 148 if(hcrc == NULL)
mbed_official 133:d4dda5c437f0 149 {
mbed_official 133:d4dda5c437f0 150 return HAL_ERROR;
mbed_official 133:d4dda5c437f0 151 }
mbed_official 133:d4dda5c437f0 152
mbed_official 133:d4dda5c437f0 153 /* Check the parameters */
mbed_official 133:d4dda5c437f0 154 assert_param(IS_CRC_ALL_INSTANCE(hcrc->Instance));
mbed_official 133:d4dda5c437f0 155
mbed_official 133:d4dda5c437f0 156 /* Change CRC peripheral state */
mbed_official 133:d4dda5c437f0 157 hcrc->State = HAL_CRC_STATE_BUSY;
mbed_official 133:d4dda5c437f0 158
mbed_official 133:d4dda5c437f0 159 /* DeInit the low level hardware */
mbed_official 133:d4dda5c437f0 160 HAL_CRC_MspDeInit(hcrc);
mbed_official 133:d4dda5c437f0 161
mbed_official 133:d4dda5c437f0 162 /* Change CRC peripheral state */
mbed_official 133:d4dda5c437f0 163 hcrc->State = HAL_CRC_STATE_RESET;
mbed_official 133:d4dda5c437f0 164
mbed_official 133:d4dda5c437f0 165 /* Release Lock */
mbed_official 133:d4dda5c437f0 166 __HAL_UNLOCK(hcrc);
mbed_official 133:d4dda5c437f0 167
mbed_official 133:d4dda5c437f0 168 /* Return function status */
mbed_official 133:d4dda5c437f0 169 return HAL_OK;
mbed_official 133:d4dda5c437f0 170 }
mbed_official 133:d4dda5c437f0 171
mbed_official 133:d4dda5c437f0 172 /**
mbed_official 133:d4dda5c437f0 173 * @brief Initializes the CRC MSP.
mbed_official 242:7074e42da0b2 174 * @param hcrc: pointer to a CRC_HandleTypeDef structure that contains
mbed_official 242:7074e42da0b2 175 * the configuration information for CRC
mbed_official 133:d4dda5c437f0 176 * @retval None
mbed_official 133:d4dda5c437f0 177 */
mbed_official 133:d4dda5c437f0 178 __weak void HAL_CRC_MspInit(CRC_HandleTypeDef *hcrc)
mbed_official 133:d4dda5c437f0 179 {
mbed_official 133:d4dda5c437f0 180 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 133:d4dda5c437f0 181 the HAL_CRC_MspInit could be implemented in the user file
mbed_official 133:d4dda5c437f0 182 */
mbed_official 133:d4dda5c437f0 183 }
mbed_official 133:d4dda5c437f0 184
mbed_official 133:d4dda5c437f0 185 /**
mbed_official 133:d4dda5c437f0 186 * @brief DeInitializes the CRC MSP.
mbed_official 242:7074e42da0b2 187 * @param hcrc: pointer to a CRC_HandleTypeDef structure that contains
mbed_official 242:7074e42da0b2 188 * the configuration information for CRC
mbed_official 133:d4dda5c437f0 189 * @retval None
mbed_official 133:d4dda5c437f0 190 */
mbed_official 133:d4dda5c437f0 191 __weak void HAL_CRC_MspDeInit(CRC_HandleTypeDef *hcrc)
mbed_official 133:d4dda5c437f0 192 {
mbed_official 133:d4dda5c437f0 193 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 133:d4dda5c437f0 194 the HAL_CRC_MspDeInit could be implemented in the user file
mbed_official 133:d4dda5c437f0 195 */
mbed_official 133:d4dda5c437f0 196 }
mbed_official 133:d4dda5c437f0 197
mbed_official 133:d4dda5c437f0 198 /**
mbed_official 133:d4dda5c437f0 199 * @}
mbed_official 133:d4dda5c437f0 200 */
mbed_official 133:d4dda5c437f0 201
mbed_official 133:d4dda5c437f0 202 /** @defgroup CRC_Group2 Peripheral Control functions
mbed_official 133:d4dda5c437f0 203 * @brief management functions.
mbed_official 133:d4dda5c437f0 204 *
mbed_official 133:d4dda5c437f0 205 @verbatim
mbed_official 133:d4dda5c437f0 206 ==============================================================================
mbed_official 133:d4dda5c437f0 207 ##### Peripheral Control functions #####
mbed_official 133:d4dda5c437f0 208 ==============================================================================
mbed_official 133:d4dda5c437f0 209 [..] This section provides functions allowing to:
mbed_official 133:d4dda5c437f0 210 (+) Compute the 32-bit CRC value of 32-bit data buffer,
mbed_official 133:d4dda5c437f0 211 using combination of the previous CRC value and the new one.
mbed_official 133:d4dda5c437f0 212 (+) Compute the 32-bit CRC value of 32-bit data buffer,
mbed_official 133:d4dda5c437f0 213 independently of the previous CRC value.
mbed_official 133:d4dda5c437f0 214
mbed_official 133:d4dda5c437f0 215 @endverbatim
mbed_official 133:d4dda5c437f0 216 * @{
mbed_official 133:d4dda5c437f0 217 */
mbed_official 133:d4dda5c437f0 218
mbed_official 133:d4dda5c437f0 219 /**
mbed_official 133:d4dda5c437f0 220 * @brief Computes the 32-bit CRC of 32-bit data buffer using combination
mbed_official 133:d4dda5c437f0 221 * of the previous CRC value and the new one.
mbed_official 242:7074e42da0b2 222 * @param hcrc: pointer to a CRC_HandleTypeDef structure that contains
mbed_official 242:7074e42da0b2 223 * the configuration information for CRC
mbed_official 133:d4dda5c437f0 224 * @param pBuffer: pointer to the buffer containing the data to be computed
mbed_official 133:d4dda5c437f0 225 * @param BufferLength: length of the buffer to be computed
mbed_official 133:d4dda5c437f0 226 * @retval 32-bit CRC
mbed_official 133:d4dda5c437f0 227 */
mbed_official 133:d4dda5c437f0 228 uint32_t HAL_CRC_Accumulate(CRC_HandleTypeDef *hcrc, uint32_t pBuffer[], uint32_t BufferLength)
mbed_official 133:d4dda5c437f0 229 {
mbed_official 133:d4dda5c437f0 230 uint32_t index = 0;
mbed_official 133:d4dda5c437f0 231
mbed_official 133:d4dda5c437f0 232 /* Process Locked */
mbed_official 133:d4dda5c437f0 233 __HAL_LOCK(hcrc);
mbed_official 133:d4dda5c437f0 234
mbed_official 133:d4dda5c437f0 235 /* Change CRC peripheral state */
mbed_official 133:d4dda5c437f0 236 hcrc->State = HAL_CRC_STATE_BUSY;
mbed_official 133:d4dda5c437f0 237
mbed_official 133:d4dda5c437f0 238 /* Enter Data to the CRC calculator */
mbed_official 133:d4dda5c437f0 239 for(index = 0; index < BufferLength; index++)
mbed_official 133:d4dda5c437f0 240 {
mbed_official 133:d4dda5c437f0 241 hcrc->Instance->DR = pBuffer[index];
mbed_official 133:d4dda5c437f0 242 }
mbed_official 133:d4dda5c437f0 243
mbed_official 133:d4dda5c437f0 244 /* Change CRC peripheral state */
mbed_official 133:d4dda5c437f0 245 hcrc->State = HAL_CRC_STATE_READY;
mbed_official 133:d4dda5c437f0 246
mbed_official 133:d4dda5c437f0 247 /* Process Unlocked */
mbed_official 133:d4dda5c437f0 248 __HAL_UNLOCK(hcrc);
mbed_official 133:d4dda5c437f0 249
mbed_official 133:d4dda5c437f0 250 /* Return the CRC computed value */
mbed_official 133:d4dda5c437f0 251 return hcrc->Instance->DR;
mbed_official 133:d4dda5c437f0 252 }
mbed_official 133:d4dda5c437f0 253
mbed_official 133:d4dda5c437f0 254 /**
mbed_official 133:d4dda5c437f0 255 * @brief Computes the 32-bit CRC of 32-bit data buffer independently
mbed_official 133:d4dda5c437f0 256 * of the previous CRC value.
mbed_official 242:7074e42da0b2 257 * @param hcrc: pointer to a CRC_HandleTypeDef structure that contains
mbed_official 242:7074e42da0b2 258 * the configuration information for CRC
mbed_official 133:d4dda5c437f0 259 * @param pBuffer: Pointer to the buffer containing the data to be computed
mbed_official 133:d4dda5c437f0 260 * @param BufferLength: Length of the buffer to be computed
mbed_official 133:d4dda5c437f0 261 * @retval 32-bit CRC
mbed_official 133:d4dda5c437f0 262 */
mbed_official 133:d4dda5c437f0 263 uint32_t HAL_CRC_Calculate(CRC_HandleTypeDef *hcrc, uint32_t pBuffer[], uint32_t BufferLength)
mbed_official 133:d4dda5c437f0 264 {
mbed_official 133:d4dda5c437f0 265 uint32_t index = 0;
mbed_official 133:d4dda5c437f0 266
mbed_official 133:d4dda5c437f0 267 /* Process Locked */
mbed_official 133:d4dda5c437f0 268 __HAL_LOCK(hcrc);
mbed_official 133:d4dda5c437f0 269
mbed_official 133:d4dda5c437f0 270 /* Change CRC peripheral state */
mbed_official 133:d4dda5c437f0 271 hcrc->State = HAL_CRC_STATE_BUSY;
mbed_official 133:d4dda5c437f0 272
mbed_official 133:d4dda5c437f0 273 /* Reset CRC Calculation Unit */
mbed_official 133:d4dda5c437f0 274 __HAL_CRC_DR_RESET(hcrc);
mbed_official 133:d4dda5c437f0 275
mbed_official 133:d4dda5c437f0 276 /* Enter Data to the CRC calculator */
mbed_official 133:d4dda5c437f0 277 for(index = 0; index < BufferLength; index++)
mbed_official 133:d4dda5c437f0 278 {
mbed_official 133:d4dda5c437f0 279 hcrc->Instance->DR = pBuffer[index];
mbed_official 133:d4dda5c437f0 280 }
mbed_official 133:d4dda5c437f0 281
mbed_official 133:d4dda5c437f0 282 /* Change CRC peripheral state */
mbed_official 133:d4dda5c437f0 283 hcrc->State = HAL_CRC_STATE_READY;
mbed_official 133:d4dda5c437f0 284
mbed_official 133:d4dda5c437f0 285 /* Process Unlocked */
mbed_official 133:d4dda5c437f0 286 __HAL_UNLOCK(hcrc);
mbed_official 133:d4dda5c437f0 287
mbed_official 133:d4dda5c437f0 288 /* Return the CRC computed value */
mbed_official 133:d4dda5c437f0 289 return hcrc->Instance->DR;
mbed_official 133:d4dda5c437f0 290 }
mbed_official 133:d4dda5c437f0 291
mbed_official 133:d4dda5c437f0 292 /**
mbed_official 133:d4dda5c437f0 293 * @}
mbed_official 133:d4dda5c437f0 294 */
mbed_official 133:d4dda5c437f0 295
mbed_official 133:d4dda5c437f0 296 /** @defgroup CRC_Group3 Peripheral State functions
mbed_official 133:d4dda5c437f0 297 * @brief Peripheral State functions.
mbed_official 133:d4dda5c437f0 298 *
mbed_official 133:d4dda5c437f0 299 @verbatim
mbed_official 133:d4dda5c437f0 300 ==============================================================================
mbed_official 133:d4dda5c437f0 301 ##### Peripheral State functions #####
mbed_official 133:d4dda5c437f0 302 ==============================================================================
mbed_official 133:d4dda5c437f0 303 [..]
mbed_official 133:d4dda5c437f0 304 This subsection permits to get in run-time the status of the peripheral
mbed_official 133:d4dda5c437f0 305 and the data flow.
mbed_official 133:d4dda5c437f0 306
mbed_official 133:d4dda5c437f0 307 @endverbatim
mbed_official 133:d4dda5c437f0 308 * @{
mbed_official 133:d4dda5c437f0 309 */
mbed_official 133:d4dda5c437f0 310
mbed_official 133:d4dda5c437f0 311 /**
mbed_official 133:d4dda5c437f0 312 * @brief Returns the CRC state.
mbed_official 242:7074e42da0b2 313 * @param hcrc: pointer to a CRC_HandleTypeDef structure that contains
mbed_official 242:7074e42da0b2 314 * the configuration information for CRC
mbed_official 133:d4dda5c437f0 315 * @retval HAL state
mbed_official 133:d4dda5c437f0 316 */
mbed_official 133:d4dda5c437f0 317 HAL_CRC_StateTypeDef HAL_CRC_GetState(CRC_HandleTypeDef *hcrc)
mbed_official 133:d4dda5c437f0 318 {
mbed_official 133:d4dda5c437f0 319 return hcrc->State;
mbed_official 133:d4dda5c437f0 320 }
mbed_official 133:d4dda5c437f0 321
mbed_official 133:d4dda5c437f0 322 /**
mbed_official 133:d4dda5c437f0 323 * @}
mbed_official 133:d4dda5c437f0 324 */
mbed_official 133:d4dda5c437f0 325
mbed_official 133:d4dda5c437f0 326 /**
mbed_official 133:d4dda5c437f0 327 * @}
mbed_official 133:d4dda5c437f0 328 */
mbed_official 133:d4dda5c437f0 329
mbed_official 133:d4dda5c437f0 330 #endif /* HAL_CRC_MODULE_ENABLED */
mbed_official 133:d4dda5c437f0 331 /**
mbed_official 133:d4dda5c437f0 332 * @}
mbed_official 133:d4dda5c437f0 333 */
mbed_official 133:d4dda5c437f0 334
mbed_official 133:d4dda5c437f0 335 /**
mbed_official 133:d4dda5c437f0 336 * @}
mbed_official 133:d4dda5c437f0 337 */
mbed_official 133:d4dda5c437f0 338
mbed_official 133:d4dda5c437f0 339 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/