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Last commit 20 Feb 2019 by mbed official

targets/cmsis/TARGET_STM/TARGET_STM32L1/stm32l1xx_hal_crc.c@579:53297373a894, 2015-07-01 (annotated)

Committer:
mbed_official
Date:
Wed Jul 01 09:45:11 2015 +0100
Revision:
579:53297373a894
Parent:
394:83f921546702 
Synchronized with git revision d5b4d2ab9c47edb4dc5776e7177b0c2263459081



Full URL: https://github.com/mbedmicro/mbed/commit/d5b4d2ab9c47edb4dc5776e7177b0c2263459081/



Initial version of drivers for SAMR21

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 354:e67efb2aab0e 1 /**
mbed_official 354:e67efb2aab0e 2 ******************************************************************************
mbed_official 354:e67efb2aab0e 3 * @file stm32l1xx_hal_crc.c
mbed_official 354:e67efb2aab0e 4 * @author MCD Application Team
mbed_official 354:e67efb2aab0e 5 * @version V1.0.0
mbed_official 354:e67efb2aab0e 6 * @date 5-September-2014
mbed_official 354:e67efb2aab0e 7 * @brief CRC HAL module driver.
mbed_official 354:e67efb2aab0e 8 * This file provides firmware functions to manage the following
mbed_official 354:e67efb2aab0e 9 * functionalities of the Cyclic Redundancy Check (CRC) peripheral:
mbed_official 354:e67efb2aab0e 10 * + Initialization and de-initialization functions
mbed_official 354:e67efb2aab0e 11 * + Peripheral Control functions
mbed_official 354:e67efb2aab0e 12 * + Peripheral State functions
mbed_official 354:e67efb2aab0e 13 *
mbed_official 354:e67efb2aab0e 14 @verbatim
mbed_official 354:e67efb2aab0e 15 ==============================================================================
mbed_official 354:e67efb2aab0e 16 ##### How to use this driver #####
mbed_official 354:e67efb2aab0e 17 ==============================================================================
mbed_official 354:e67efb2aab0e 18 [..]
mbed_official 354:e67efb2aab0e 19 The CRC HAL driver can be used as follows:
mbed_official 354:e67efb2aab0e 20
mbed_official 354:e67efb2aab0e 21 (#) Enable CRC AHB clock using __CRC_CLK_ENABLE();
mbed_official 354:e67efb2aab0e 22
mbed_official 354:e67efb2aab0e 23 (#) Use HAL_CRC_Accumulate() function to compute the CRC value of
mbed_official 354:e67efb2aab0e 24 a 32-bit data buffer using combination of the previous CRC value
mbed_official 354:e67efb2aab0e 25 and the new one.
mbed_official 354:e67efb2aab0e 26
mbed_official 354:e67efb2aab0e 27 (#) Use HAL_CRC_Calculate() function to compute the CRC Value of
mbed_official 354:e67efb2aab0e 28 a new 32-bit data buffer. This function resets the CRC computation
mbed_official 354:e67efb2aab0e 29 unit before starting the computation to avoid getting wrong CRC values.
mbed_official 354:e67efb2aab0e 30
mbed_official 354:e67efb2aab0e 31 @endverbatim
mbed_official 354:e67efb2aab0e 32 ******************************************************************************
mbed_official 354:e67efb2aab0e 33 * @attention
mbed_official 354:e67efb2aab0e 34 *
mbed_official 354:e67efb2aab0e 35 * <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
mbed_official 354:e67efb2aab0e 36 *
mbed_official 354:e67efb2aab0e 37 * Redistribution and use in source and binary forms, with or without modification,
mbed_official 354:e67efb2aab0e 38 * are permitted provided that the following conditions are met:
mbed_official 354:e67efb2aab0e 39 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 354:e67efb2aab0e 40 * this list of conditions and the following disclaimer.
mbed_official 354:e67efb2aab0e 41 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 354:e67efb2aab0e 42 * this list of conditions and the following disclaimer in the documentation
mbed_official 354:e67efb2aab0e 43 * and/or other materials provided with the distribution.
mbed_official 354:e67efb2aab0e 44 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 354:e67efb2aab0e 45 * may be used to endorse or promote products derived from this software
mbed_official 354:e67efb2aab0e 46 * without specific prior written permission.
mbed_official 354:e67efb2aab0e 47 *
mbed_official 354:e67efb2aab0e 48 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 354:e67efb2aab0e 49 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 354:e67efb2aab0e 50 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 354:e67efb2aab0e 51 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 354:e67efb2aab0e 52 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 354:e67efb2aab0e 53 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 354:e67efb2aab0e 54 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 354:e67efb2aab0e 55 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 354:e67efb2aab0e 56 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 354:e67efb2aab0e 57 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 354:e67efb2aab0e 58 *
mbed_official 354:e67efb2aab0e 59 ******************************************************************************
mbed_official 354:e67efb2aab0e 60 */
mbed_official 354:e67efb2aab0e 61
mbed_official 354:e67efb2aab0e 62 /* Includes ------------------------------------------------------------------*/
mbed_official 354:e67efb2aab0e 63 #include "stm32l1xx_hal.h"
mbed_official 354:e67efb2aab0e 64
mbed_official 354:e67efb2aab0e 65 /** @addtogroup STM32L1xx_HAL_Driver
mbed_official 354:e67efb2aab0e 66 * @{
mbed_official 354:e67efb2aab0e 67 */
mbed_official 354:e67efb2aab0e 68
mbed_official 354:e67efb2aab0e 69 /** @defgroup CRC CRC
mbed_official 354:e67efb2aab0e 70 * @brief CRC HAL module driver.
mbed_official 354:e67efb2aab0e 71 * @{
mbed_official 354:e67efb2aab0e 72 */
mbed_official 354:e67efb2aab0e 73
mbed_official 354:e67efb2aab0e 74 #ifdef HAL_CRC_MODULE_ENABLED
mbed_official 354:e67efb2aab0e 75
mbed_official 354:e67efb2aab0e 76 /* Private typedef -----------------------------------------------------------*/
mbed_official 354:e67efb2aab0e 77 /* Private define ------------------------------------------------------------*/
mbed_official 354:e67efb2aab0e 78 /* Private macro -------------------------------------------------------------*/
mbed_official 354:e67efb2aab0e 79 /* Private variables ---------------------------------------------------------*/
mbed_official 354:e67efb2aab0e 80 /* Private function prototypes -----------------------------------------------*/
mbed_official 354:e67efb2aab0e 81 /* Private functions ---------------------------------------------------------*/
mbed_official 354:e67efb2aab0e 82
mbed_official 354:e67efb2aab0e 83 /** @defgroup CRC_Exported_Functions CRC Exported Functions
mbed_official 354:e67efb2aab0e 84 * @{
mbed_official 354:e67efb2aab0e 85 */
mbed_official 354:e67efb2aab0e 86
mbed_official 354:e67efb2aab0e 87 /** @defgroup CRC_Exported_Functions_Group1 Initialization and de-initialization functions
mbed_official 354:e67efb2aab0e 88 * @brief Initialization and Configuration functions.
mbed_official 354:e67efb2aab0e 89 *
mbed_official 354:e67efb2aab0e 90 @verbatim
mbed_official 354:e67efb2aab0e 91 ==============================================================================
mbed_official 354:e67efb2aab0e 92 ##### Initialization and de-initialization functions #####
mbed_official 354:e67efb2aab0e 93 ==============================================================================
mbed_official 354:e67efb2aab0e 94 [..] This section provides functions allowing to:
mbed_official 354:e67efb2aab0e 95 (+) Initialize the CRC according to the specified parameters
mbed_official 354:e67efb2aab0e 96 in the CRC_InitTypeDef and create the associated handle
mbed_official 354:e67efb2aab0e 97 (+) DeInitialize the CRC peripheral
mbed_official 354:e67efb2aab0e 98 (+) Initialize the CRC MSP
mbed_official 354:e67efb2aab0e 99 (+) DeInitialize CRC MSP
mbed_official 354:e67efb2aab0e 100
mbed_official 354:e67efb2aab0e 101 @endverbatim
mbed_official 354:e67efb2aab0e 102 * @{
mbed_official 354:e67efb2aab0e 103 */
mbed_official 354:e67efb2aab0e 104
mbed_official 354:e67efb2aab0e 105 /**
mbed_official 354:e67efb2aab0e 106 * @brief Initializes the CRC according to the specified
mbed_official 354:e67efb2aab0e 107 * parameters in the CRC_InitTypeDef and creates the associated handle.
mbed_official 354:e67efb2aab0e 108 * @param hcrc: pointer to a CRC_HandleTypeDef structure that contains
mbed_official 354:e67efb2aab0e 109 * the configuration information for CRC
mbed_official 354:e67efb2aab0e 110 * @retval HAL status
mbed_official 354:e67efb2aab0e 111 */
mbed_official 354:e67efb2aab0e 112 HAL_StatusTypeDef HAL_CRC_Init(CRC_HandleTypeDef *hcrc)
mbed_official 354:e67efb2aab0e 113 {
mbed_official 354:e67efb2aab0e 114 /* Check the CRC handle allocation */
mbed_official 354:e67efb2aab0e 115 if(hcrc == HAL_NULL)
mbed_official 354:e67efb2aab0e 116 {
mbed_official 354:e67efb2aab0e 117 return HAL_ERROR;
mbed_official 354:e67efb2aab0e 118 }
mbed_official 354:e67efb2aab0e 119
mbed_official 354:e67efb2aab0e 120 /* Check the parameters */
mbed_official 354:e67efb2aab0e 121 assert_param(IS_CRC_ALL_INSTANCE(hcrc->Instance));
mbed_official 354:e67efb2aab0e 122
mbed_official 354:e67efb2aab0e 123 if(hcrc->State == HAL_CRC_STATE_RESET)
mbed_official 354:e67efb2aab0e 124 {
mbed_official 354:e67efb2aab0e 125 /* Init the low level hardware */
mbed_official 354:e67efb2aab0e 126 HAL_CRC_MspInit(hcrc);
mbed_official 354:e67efb2aab0e 127 }
mbed_official 354:e67efb2aab0e 128
mbed_official 354:e67efb2aab0e 129 /* Change CRC peripheral state */
mbed_official 354:e67efb2aab0e 130 hcrc->State = HAL_CRC_STATE_BUSY;
mbed_official 354:e67efb2aab0e 131
mbed_official 354:e67efb2aab0e 132 /* Change CRC peripheral state */
mbed_official 354:e67efb2aab0e 133 hcrc->State = HAL_CRC_STATE_READY;
mbed_official 354:e67efb2aab0e 134
mbed_official 354:e67efb2aab0e 135 /* Return function status */
mbed_official 354:e67efb2aab0e 136 return HAL_OK;
mbed_official 354:e67efb2aab0e 137 }
mbed_official 354:e67efb2aab0e 138
mbed_official 354:e67efb2aab0e 139 /**
mbed_official 354:e67efb2aab0e 140 * @brief DeInitializes the CRC peripheral.
mbed_official 354:e67efb2aab0e 141 * @param hcrc: pointer to a CRC_HandleTypeDef structure that contains
mbed_official 354:e67efb2aab0e 142 * the configuration information for CRC
mbed_official 354:e67efb2aab0e 143 * @retval HAL status
mbed_official 354:e67efb2aab0e 144 */
mbed_official 354:e67efb2aab0e 145 HAL_StatusTypeDef HAL_CRC_DeInit(CRC_HandleTypeDef *hcrc)
mbed_official 354:e67efb2aab0e 146 {
mbed_official 354:e67efb2aab0e 147 /* Check the CRC handle allocation */
mbed_official 354:e67efb2aab0e 148 if(hcrc == HAL_NULL)
mbed_official 354:e67efb2aab0e 149 {
mbed_official 354:e67efb2aab0e 150 return HAL_ERROR;
mbed_official 354:e67efb2aab0e 151 }
mbed_official 354:e67efb2aab0e 152
mbed_official 354:e67efb2aab0e 153 /* Check the parameters */
mbed_official 354:e67efb2aab0e 154 assert_param(IS_CRC_ALL_INSTANCE(hcrc->Instance));
mbed_official 354:e67efb2aab0e 155
mbed_official 354:e67efb2aab0e 156 /* Change CRC peripheral state */
mbed_official 354:e67efb2aab0e 157 hcrc->State = HAL_CRC_STATE_BUSY;
mbed_official 354:e67efb2aab0e 158
mbed_official 354:e67efb2aab0e 159 /* DeInit the low level hardware */
mbed_official 354:e67efb2aab0e 160 HAL_CRC_MspDeInit(hcrc);
mbed_official 354:e67efb2aab0e 161
mbed_official 354:e67efb2aab0e 162 /* Change CRC peripheral state */
mbed_official 354:e67efb2aab0e 163 hcrc->State = HAL_CRC_STATE_RESET;
mbed_official 354:e67efb2aab0e 164
mbed_official 354:e67efb2aab0e 165 /* Release Lock */
mbed_official 354:e67efb2aab0e 166 __HAL_UNLOCK(hcrc);
mbed_official 354:e67efb2aab0e 167
mbed_official 354:e67efb2aab0e 168 /* Return function status */
mbed_official 354:e67efb2aab0e 169 return HAL_OK;
mbed_official 354:e67efb2aab0e 170 }
mbed_official 354:e67efb2aab0e 171
mbed_official 354:e67efb2aab0e 172 /**
mbed_official 354:e67efb2aab0e 173 * @brief Initializes the CRC MSP.
mbed_official 354:e67efb2aab0e 174 * @param hcrc: pointer to a CRC_HandleTypeDef structure that contains
mbed_official 354:e67efb2aab0e 175 * the configuration information for CRC
mbed_official 354:e67efb2aab0e 176 * @retval None
mbed_official 354:e67efb2aab0e 177 */
mbed_official 354:e67efb2aab0e 178 __weak void HAL_CRC_MspInit(CRC_HandleTypeDef *hcrc)
mbed_official 354:e67efb2aab0e 179 {
mbed_official 354:e67efb2aab0e 180 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 354:e67efb2aab0e 181 the HAL_CRC_MspInit could be implemented in the user file
mbed_official 354:e67efb2aab0e 182 */
mbed_official 354:e67efb2aab0e 183 }
mbed_official 354:e67efb2aab0e 184
mbed_official 354:e67efb2aab0e 185 /**
mbed_official 354:e67efb2aab0e 186 * @brief DeInitializes the CRC MSP.
mbed_official 354:e67efb2aab0e 187 * @param hcrc: pointer to a CRC_HandleTypeDef structure that contains
mbed_official 354:e67efb2aab0e 188 * the configuration information for CRC
mbed_official 354:e67efb2aab0e 189 * @retval None
mbed_official 354:e67efb2aab0e 190 */
mbed_official 354:e67efb2aab0e 191 __weak void HAL_CRC_MspDeInit(CRC_HandleTypeDef *hcrc)
mbed_official 354:e67efb2aab0e 192 {
mbed_official 354:e67efb2aab0e 193 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 354:e67efb2aab0e 194 the HAL_CRC_MspDeInit could be implemented in the user file
mbed_official 354:e67efb2aab0e 195 */
mbed_official 354:e67efb2aab0e 196 }
mbed_official 354:e67efb2aab0e 197
mbed_official 354:e67efb2aab0e 198 /**
mbed_official 354:e67efb2aab0e 199 * @}
mbed_official 354:e67efb2aab0e 200 */
mbed_official 354:e67efb2aab0e 201
mbed_official 354:e67efb2aab0e 202 /** @defgroup CRC_Exported_Functions_Group2 Peripheral Control functions
mbed_official 354:e67efb2aab0e 203 * @brief management functions.
mbed_official 354:e67efb2aab0e 204 *
mbed_official 354:e67efb2aab0e 205 @verbatim
mbed_official 354:e67efb2aab0e 206 ==============================================================================
mbed_official 354:e67efb2aab0e 207 ##### Peripheral Control functions #####
mbed_official 354:e67efb2aab0e 208 ==============================================================================
mbed_official 354:e67efb2aab0e 209 [..] This section provides functions allowing to:
mbed_official 354:e67efb2aab0e 210 (+) Compute the 32-bit CRC value of 32-bit data buffer,
mbed_official 354:e67efb2aab0e 211 using combination of the previous CRC value and the new one.
mbed_official 354:e67efb2aab0e 212 (+) Compute the 32-bit CRC value of 32-bit data buffer,
mbed_official 354:e67efb2aab0e 213 independently of the previous CRC value.
mbed_official 354:e67efb2aab0e 214
mbed_official 354:e67efb2aab0e 215 @endverbatim
mbed_official 354:e67efb2aab0e 216 * @{
mbed_official 354:e67efb2aab0e 217 */
mbed_official 354:e67efb2aab0e 218
mbed_official 354:e67efb2aab0e 219 /**
mbed_official 354:e67efb2aab0e 220 * @brief Computes the 32-bit CRC of 32-bit data buffer using combination
mbed_official 354:e67efb2aab0e 221 * of the previous CRC value and the new one.
mbed_official 354:e67efb2aab0e 222 * @param hcrc: pointer to a CRC_HandleTypeDef structure that contains
mbed_official 354:e67efb2aab0e 223 * the configuration information for CRC
mbed_official 354:e67efb2aab0e 224 * @param pBuffer: pointer to the buffer containing the data to be computed
mbed_official 354:e67efb2aab0e 225 * @param BufferLength: length of the buffer to be computed (defined in word, 4 bytes)
mbed_official 354:e67efb2aab0e 226 * @retval 32-bit CRC
mbed_official 354:e67efb2aab0e 227 */
mbed_official 354:e67efb2aab0e 228 uint32_t HAL_CRC_Accumulate(CRC_HandleTypeDef *hcrc, uint32_t pBuffer[], uint32_t BufferLength)
mbed_official 354:e67efb2aab0e 229 {
mbed_official 354:e67efb2aab0e 230 uint32_t index = 0;
mbed_official 354:e67efb2aab0e 231
mbed_official 354:e67efb2aab0e 232 /* Process Locked */
mbed_official 354:e67efb2aab0e 233 __HAL_LOCK(hcrc);
mbed_official 354:e67efb2aab0e 234
mbed_official 354:e67efb2aab0e 235 /* Change CRC peripheral state */
mbed_official 354:e67efb2aab0e 236 hcrc->State = HAL_CRC_STATE_BUSY;
mbed_official 354:e67efb2aab0e 237
mbed_official 354:e67efb2aab0e 238 /* Enter Data to the CRC calculator */
mbed_official 354:e67efb2aab0e 239 for(index = 0; index < BufferLength; index++)
mbed_official 354:e67efb2aab0e 240 {
mbed_official 354:e67efb2aab0e 241 hcrc->Instance->DR = pBuffer[index];
mbed_official 354:e67efb2aab0e 242 }
mbed_official 354:e67efb2aab0e 243
mbed_official 354:e67efb2aab0e 244 /* Change CRC peripheral state */
mbed_official 354:e67efb2aab0e 245 hcrc->State = HAL_CRC_STATE_READY;
mbed_official 354:e67efb2aab0e 246
mbed_official 354:e67efb2aab0e 247 /* Process Unlocked */
mbed_official 354:e67efb2aab0e 248 __HAL_UNLOCK(hcrc);
mbed_official 354:e67efb2aab0e 249
mbed_official 354:e67efb2aab0e 250 /* Return the CRC computed value */
mbed_official 354:e67efb2aab0e 251 return hcrc->Instance->DR;
mbed_official 354:e67efb2aab0e 252 }
mbed_official 354:e67efb2aab0e 253
mbed_official 354:e67efb2aab0e 254 /**
mbed_official 354:e67efb2aab0e 255 * @brief Computes the 32-bit CRC of 32-bit data buffer independently
mbed_official 354:e67efb2aab0e 256 * of the previous CRC value.
mbed_official 354:e67efb2aab0e 257 * @param hcrc: pointer to a CRC_HandleTypeDef structure that contains
mbed_official 354:e67efb2aab0e 258 * the configuration information for CRC
mbed_official 354:e67efb2aab0e 259 * @param pBuffer: Pointer to the buffer containing the data to be computed
mbed_official 354:e67efb2aab0e 260 * @param BufferLength: Length of the buffer to be computed (defined in word, 4 bytes)
mbed_official 354:e67efb2aab0e 261 * @retval 32-bit CRC
mbed_official 354:e67efb2aab0e 262 */
mbed_official 354:e67efb2aab0e 263 uint32_t HAL_CRC_Calculate(CRC_HandleTypeDef *hcrc, uint32_t pBuffer[], uint32_t BufferLength)
mbed_official 354:e67efb2aab0e 264 {
mbed_official 354:e67efb2aab0e 265 uint32_t index = 0;
mbed_official 354:e67efb2aab0e 266
mbed_official 354:e67efb2aab0e 267 /* Process Locked */
mbed_official 354:e67efb2aab0e 268 __HAL_LOCK(hcrc);
mbed_official 354:e67efb2aab0e 269
mbed_official 354:e67efb2aab0e 270 /* Change CRC peripheral state */
mbed_official 354:e67efb2aab0e 271 hcrc->State = HAL_CRC_STATE_BUSY;
mbed_official 354:e67efb2aab0e 272
mbed_official 354:e67efb2aab0e 273 /* Reset CRC Calculation Unit */
mbed_official 354:e67efb2aab0e 274 __HAL_CRC_DR_RESET(hcrc);
mbed_official 354:e67efb2aab0e 275
mbed_official 354:e67efb2aab0e 276 /* Enter Data to the CRC calculator */
mbed_official 354:e67efb2aab0e 277 for(index = 0; index < BufferLength; index++)
mbed_official 354:e67efb2aab0e 278 {
mbed_official 354:e67efb2aab0e 279 hcrc->Instance->DR = pBuffer[index];
mbed_official 354:e67efb2aab0e 280 }
mbed_official 354:e67efb2aab0e 281
mbed_official 354:e67efb2aab0e 282 /* Change CRC peripheral state */
mbed_official 354:e67efb2aab0e 283 hcrc->State = HAL_CRC_STATE_READY;
mbed_official 354:e67efb2aab0e 284
mbed_official 354:e67efb2aab0e 285 /* Process Unlocked */
mbed_official 354:e67efb2aab0e 286 __HAL_UNLOCK(hcrc);
mbed_official 354:e67efb2aab0e 287
mbed_official 354:e67efb2aab0e 288 /* Return the CRC computed value */
mbed_official 354:e67efb2aab0e 289 return hcrc->Instance->DR;
mbed_official 354:e67efb2aab0e 290 }
mbed_official 354:e67efb2aab0e 291
mbed_official 354:e67efb2aab0e 292 /**
mbed_official 354:e67efb2aab0e 293 * @}
mbed_official 354:e67efb2aab0e 294 */
mbed_official 354:e67efb2aab0e 295
mbed_official 354:e67efb2aab0e 296 /** @defgroup CRC_Exported_Functions_Group3 Peripheral State functions
mbed_official 354:e67efb2aab0e 297 * @brief Peripheral State functions.
mbed_official 354:e67efb2aab0e 298 *
mbed_official 354:e67efb2aab0e 299 @verbatim
mbed_official 354:e67efb2aab0e 300 ==============================================================================
mbed_official 354:e67efb2aab0e 301 ##### Peripheral State functions #####
mbed_official 354:e67efb2aab0e 302 ==============================================================================
mbed_official 354:e67efb2aab0e 303 [..]
mbed_official 354:e67efb2aab0e 304 This subsection permits to get in run-time the status of the peripheral
mbed_official 354:e67efb2aab0e 305 and the data flow.
mbed_official 354:e67efb2aab0e 306
mbed_official 354:e67efb2aab0e 307 @endverbatim
mbed_official 354:e67efb2aab0e 308 * @{
mbed_official 354:e67efb2aab0e 309 */
mbed_official 354:e67efb2aab0e 310
mbed_official 354:e67efb2aab0e 311 /**
mbed_official 354:e67efb2aab0e 312 * @brief Returns the CRC state.
mbed_official 354:e67efb2aab0e 313 * @param hcrc: pointer to a CRC_HandleTypeDef structure that contains
mbed_official 354:e67efb2aab0e 314 * the configuration information for CRC
mbed_official 354:e67efb2aab0e 315 * @retval HAL state
mbed_official 354:e67efb2aab0e 316 */
mbed_official 354:e67efb2aab0e 317 HAL_CRC_StateTypeDef HAL_CRC_GetState(CRC_HandleTypeDef *hcrc)
mbed_official 354:e67efb2aab0e 318 {
mbed_official 354:e67efb2aab0e 319 return hcrc->State;
mbed_official 354:e67efb2aab0e 320 }
mbed_official 354:e67efb2aab0e 321
mbed_official 354:e67efb2aab0e 322 /**
mbed_official 354:e67efb2aab0e 323 * @}
mbed_official 354:e67efb2aab0e 324 */
mbed_official 354:e67efb2aab0e 325
mbed_official 354:e67efb2aab0e 326 /**
mbed_official 354:e67efb2aab0e 327 * @}
mbed_official 354:e67efb2aab0e 328 */
mbed_official 354:e67efb2aab0e 329
mbed_official 354:e67efb2aab0e 330 #endif /* HAL_CRC_MODULE_ENABLED */
mbed_official 354:e67efb2aab0e 331 /**
mbed_official 354:e67efb2aab0e 332 * @}
mbed_official 354:e67efb2aab0e 333 */
mbed_official 354:e67efb2aab0e 334
mbed_official 354:e67efb2aab0e 335 /**
mbed_official 354:e67efb2aab0e 336 * @}
mbed_official 354:e67efb2aab0e 337 */
mbed_official 354:e67efb2aab0e 338
mbed_official 354:e67efb2aab0e 339 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/