en 129 / mbed-dev

fix LPC812 PWM

Dependents:   IR_LED_Send

Fork of mbed-dev by mbed official

targets/cmsis/TARGET_STM/TARGET_STM32F4/stm32f4xx_hal_crc.c@0:9b334a45a8ff, 2015-10-01 (annotated)

Committer:
bogdanm
Date:
Thu Oct 01 15:25:22 2015 +0300
Revision:
0:9b334a45a8ff
Child:
19:112740acecfa
Initial commit on mbed-dev



Replaces mbed-src (now inactive)

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bogdanm 0:9b334a45a8ff 1 /**
bogdanm 0:9b334a45a8ff 2 ******************************************************************************
bogdanm 0:9b334a45a8ff 3 * @file stm32f4xx_hal_crc.c
bogdanm 0:9b334a45a8ff 4 * @author MCD Application Team
bogdanm 0:9b334a45a8ff 5 * @version V1.3.2
bogdanm 0:9b334a45a8ff 6 * @date 26-June-2015
bogdanm 0:9b334a45a8ff 7 * @brief CRC HAL module driver.
bogdanm 0:9b334a45a8ff 8 * This file provides firmware functions to manage the following
bogdanm 0:9b334a45a8ff 9 * functionalities of the Cyclic Redundancy Check (CRC) peripheral:
bogdanm 0:9b334a45a8ff 10 * + Initialization and de-initialization functions
bogdanm 0:9b334a45a8ff 11 * + Peripheral Control functions
bogdanm 0:9b334a45a8ff 12 * + Peripheral State functions
bogdanm 0:9b334a45a8ff 13 *
bogdanm 0:9b334a45a8ff 14 @verbatim
bogdanm 0:9b334a45a8ff 15 ==============================================================================
bogdanm 0:9b334a45a8ff 16 ##### How to use this driver #####
bogdanm 0:9b334a45a8ff 17 ==============================================================================
bogdanm 0:9b334a45a8ff 18 [..]
bogdanm 0:9b334a45a8ff 19 The CRC HAL driver can be used as follows:
bogdanm 0:9b334a45a8ff 20
bogdanm 0:9b334a45a8ff 21 (#) Enable CRC AHB clock using __HAL_RCC_CRC_CLK_ENABLE();
bogdanm 0:9b334a45a8ff 22
bogdanm 0:9b334a45a8ff 23 (#) Use HAL_CRC_Accumulate() function to compute the CRC value of
bogdanm 0:9b334a45a8ff 24 a 32-bit data buffer using combination of the previous CRC value
bogdanm 0:9b334a45a8ff 25 and the new one.
bogdanm 0:9b334a45a8ff 26
bogdanm 0:9b334a45a8ff 27 (#) Use HAL_CRC_Calculate() function to compute the CRC Value of
bogdanm 0:9b334a45a8ff 28 a new 32-bit data buffer. This function resets the CRC computation
bogdanm 0:9b334a45a8ff 29 unit before starting the computation to avoid getting wrong CRC values.
bogdanm 0:9b334a45a8ff 30
bogdanm 0:9b334a45a8ff 31 @endverbatim
bogdanm 0:9b334a45a8ff 32 ******************************************************************************
bogdanm 0:9b334a45a8ff 33 * @attention
bogdanm 0:9b334a45a8ff 34 *
bogdanm 0:9b334a45a8ff 35 * <h2><center>&copy; COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
bogdanm 0:9b334a45a8ff 36 *
bogdanm 0:9b334a45a8ff 37 * Redistribution and use in source and binary forms, with or without modification,
bogdanm 0:9b334a45a8ff 38 * are permitted provided that the following conditions are met:
bogdanm 0:9b334a45a8ff 39 * 1. Redistributions of source code must retain the above copyright notice,
bogdanm 0:9b334a45a8ff 40 * this list of conditions and the following disclaimer.
bogdanm 0:9b334a45a8ff 41 * 2. Redistributions in binary form must reproduce the above copyright notice,
bogdanm 0:9b334a45a8ff 42 * this list of conditions and the following disclaimer in the documentation
bogdanm 0:9b334a45a8ff 43 * and/or other materials provided with the distribution.
bogdanm 0:9b334a45a8ff 44 * 3. Neither the name of STMicroelectronics nor the names of its contributors
bogdanm 0:9b334a45a8ff 45 * may be used to endorse or promote products derived from this software
bogdanm 0:9b334a45a8ff 46 * without specific prior written permission.
bogdanm 0:9b334a45a8ff 47 *
bogdanm 0:9b334a45a8ff 48 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
bogdanm 0:9b334a45a8ff 49 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
bogdanm 0:9b334a45a8ff 50 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
bogdanm 0:9b334a45a8ff 51 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
bogdanm 0:9b334a45a8ff 52 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
bogdanm 0:9b334a45a8ff 53 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
bogdanm 0:9b334a45a8ff 54 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
bogdanm 0:9b334a45a8ff 55 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
bogdanm 0:9b334a45a8ff 56 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
bogdanm 0:9b334a45a8ff 57 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
bogdanm 0:9b334a45a8ff 58 *
bogdanm 0:9b334a45a8ff 59 ******************************************************************************
bogdanm 0:9b334a45a8ff 60 */
bogdanm 0:9b334a45a8ff 61
bogdanm 0:9b334a45a8ff 62 /* Includes ------------------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 63 #include "stm32f4xx_hal.h"
bogdanm 0:9b334a45a8ff 64
bogdanm 0:9b334a45a8ff 65 /** @addtogroup STM32F4xx_HAL_Driver
bogdanm 0:9b334a45a8ff 66 * @{
bogdanm 0:9b334a45a8ff 67 */
bogdanm 0:9b334a45a8ff 68
bogdanm 0:9b334a45a8ff 69 /** @addtogroup CRC
bogdanm 0:9b334a45a8ff 70 * @{
bogdanm 0:9b334a45a8ff 71 */
bogdanm 0:9b334a45a8ff 72
bogdanm 0:9b334a45a8ff 73 #ifdef HAL_CRC_MODULE_ENABLED
bogdanm 0:9b334a45a8ff 74
bogdanm 0:9b334a45a8ff 75 /* Private typedef -----------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 76 /* Private define ------------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 77 /* Private macro -------------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 78 /* Private variables ---------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 79 /* Private function prototypes -----------------------------------------------*/
bogdanm 0:9b334a45a8ff 80 /* Private functions ---------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 81 /* Exported functions --------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 82
bogdanm 0:9b334a45a8ff 83 /** @addtogroup CRC_Exported_Functions
bogdanm 0:9b334a45a8ff 84 * @{
bogdanm 0:9b334a45a8ff 85 */
bogdanm 0:9b334a45a8ff 86
bogdanm 0:9b334a45a8ff 87 /** @addtogroup CRC_Exported_Functions_Group1
bogdanm 0:9b334a45a8ff 88 * @brief Initialization and de-initialization functions
bogdanm 0:9b334a45a8ff 89 *
bogdanm 0:9b334a45a8ff 90 @verbatim
bogdanm 0:9b334a45a8ff 91 ==============================================================================
bogdanm 0:9b334a45a8ff 92 ##### Initialization and de-initialization functions #####
bogdanm 0:9b334a45a8ff 93 ==============================================================================
bogdanm 0:9b334a45a8ff 94 [..] This section provides functions allowing to:
bogdanm 0:9b334a45a8ff 95 (+) Initialize the CRC according to the specified parameters
bogdanm 0:9b334a45a8ff 96 in the CRC_InitTypeDef and create the associated handle
bogdanm 0:9b334a45a8ff 97 (+) DeInitialize the CRC peripheral
bogdanm 0:9b334a45a8ff 98 (+) Initialize the CRC MSP
bogdanm 0:9b334a45a8ff 99 (+) DeInitialize CRC MSP
bogdanm 0:9b334a45a8ff 100
bogdanm 0:9b334a45a8ff 101 @endverbatim
bogdanm 0:9b334a45a8ff 102 * @{
bogdanm 0:9b334a45a8ff 103 */
bogdanm 0:9b334a45a8ff 104
bogdanm 0:9b334a45a8ff 105 /**
bogdanm 0:9b334a45a8ff 106 * @brief Initializes the CRC according to the specified
bogdanm 0:9b334a45a8ff 107 * parameters in the CRC_InitTypeDef and creates the associated handle.
bogdanm 0:9b334a45a8ff 108 * @param hcrc: pointer to a CRC_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 109 * the configuration information for CRC
bogdanm 0:9b334a45a8ff 110 * @retval HAL status
bogdanm 0:9b334a45a8ff 111 */
bogdanm 0:9b334a45a8ff 112 HAL_StatusTypeDef HAL_CRC_Init(CRC_HandleTypeDef *hcrc)
bogdanm 0:9b334a45a8ff 113 {
bogdanm 0:9b334a45a8ff 114 /* Check the CRC handle allocation */
bogdanm 0:9b334a45a8ff 115 if(hcrc == NULL)
bogdanm 0:9b334a45a8ff 116 {
bogdanm 0:9b334a45a8ff 117 return HAL_ERROR;
bogdanm 0:9b334a45a8ff 118 }
bogdanm 0:9b334a45a8ff 119
bogdanm 0:9b334a45a8ff 120 /* Check the parameters */
bogdanm 0:9b334a45a8ff 121 assert_param(IS_CRC_ALL_INSTANCE(hcrc->Instance));
bogdanm 0:9b334a45a8ff 122
bogdanm 0:9b334a45a8ff 123 if(hcrc->State == HAL_CRC_STATE_RESET)
bogdanm 0:9b334a45a8ff 124 {
bogdanm 0:9b334a45a8ff 125 /* Allocate lock resource and initialize it */
bogdanm 0:9b334a45a8ff 126 hcrc->Lock = HAL_UNLOCKED;
bogdanm 0:9b334a45a8ff 127 /* Init the low level hardware */
bogdanm 0:9b334a45a8ff 128 HAL_CRC_MspInit(hcrc);
bogdanm 0:9b334a45a8ff 129 }
bogdanm 0:9b334a45a8ff 130
bogdanm 0:9b334a45a8ff 131 /* Change CRC peripheral state */
bogdanm 0:9b334a45a8ff 132 hcrc->State = HAL_CRC_STATE_BUSY;
bogdanm 0:9b334a45a8ff 133
bogdanm 0:9b334a45a8ff 134 /* Change CRC peripheral state */
bogdanm 0:9b334a45a8ff 135 hcrc->State = HAL_CRC_STATE_READY;
bogdanm 0:9b334a45a8ff 136
bogdanm 0:9b334a45a8ff 137 /* Return function status */
bogdanm 0:9b334a45a8ff 138 return HAL_OK;
bogdanm 0:9b334a45a8ff 139 }
bogdanm 0:9b334a45a8ff 140
bogdanm 0:9b334a45a8ff 141 /**
bogdanm 0:9b334a45a8ff 142 * @brief DeInitializes the CRC peripheral.
bogdanm 0:9b334a45a8ff 143 * @param hcrc: pointer to a CRC_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 144 * the configuration information for CRC
bogdanm 0:9b334a45a8ff 145 * @retval HAL status
bogdanm 0:9b334a45a8ff 146 */
bogdanm 0:9b334a45a8ff 147 HAL_StatusTypeDef HAL_CRC_DeInit(CRC_HandleTypeDef *hcrc)
bogdanm 0:9b334a45a8ff 148 {
bogdanm 0:9b334a45a8ff 149 /* Check the CRC handle allocation */
bogdanm 0:9b334a45a8ff 150 if(hcrc == NULL)
bogdanm 0:9b334a45a8ff 151 {
bogdanm 0:9b334a45a8ff 152 return HAL_ERROR;
bogdanm 0:9b334a45a8ff 153 }
bogdanm 0:9b334a45a8ff 154
bogdanm 0:9b334a45a8ff 155 /* Check the parameters */
bogdanm 0:9b334a45a8ff 156 assert_param(IS_CRC_ALL_INSTANCE(hcrc->Instance));
bogdanm 0:9b334a45a8ff 157
bogdanm 0:9b334a45a8ff 158 /* Change CRC peripheral state */
bogdanm 0:9b334a45a8ff 159 hcrc->State = HAL_CRC_STATE_BUSY;
bogdanm 0:9b334a45a8ff 160
bogdanm 0:9b334a45a8ff 161 /* DeInit the low level hardware */
bogdanm 0:9b334a45a8ff 162 HAL_CRC_MspDeInit(hcrc);
bogdanm 0:9b334a45a8ff 163
bogdanm 0:9b334a45a8ff 164 /* Change CRC peripheral state */
bogdanm 0:9b334a45a8ff 165 hcrc->State = HAL_CRC_STATE_RESET;
bogdanm 0:9b334a45a8ff 166
bogdanm 0:9b334a45a8ff 167 /* Release Lock */
bogdanm 0:9b334a45a8ff 168 __HAL_UNLOCK(hcrc);
bogdanm 0:9b334a45a8ff 169
bogdanm 0:9b334a45a8ff 170 /* Return function status */
bogdanm 0:9b334a45a8ff 171 return HAL_OK;
bogdanm 0:9b334a45a8ff 172 }
bogdanm 0:9b334a45a8ff 173
bogdanm 0:9b334a45a8ff 174 /**
bogdanm 0:9b334a45a8ff 175 * @brief Initializes the CRC MSP.
bogdanm 0:9b334a45a8ff 176 * @param hcrc: pointer to a CRC_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 177 * the configuration information for CRC
bogdanm 0:9b334a45a8ff 178 * @retval None
bogdanm 0:9b334a45a8ff 179 */
bogdanm 0:9b334a45a8ff 180 __weak void HAL_CRC_MspInit(CRC_HandleTypeDef *hcrc)
bogdanm 0:9b334a45a8ff 181 {
bogdanm 0:9b334a45a8ff 182 /* NOTE : This function Should not be modified, when the callback is needed,
bogdanm 0:9b334a45a8ff 183 the HAL_CRC_MspInit could be implemented in the user file
bogdanm 0:9b334a45a8ff 184 */
bogdanm 0:9b334a45a8ff 185 }
bogdanm 0:9b334a45a8ff 186
bogdanm 0:9b334a45a8ff 187 /**
bogdanm 0:9b334a45a8ff 188 * @brief DeInitializes the CRC MSP.
bogdanm 0:9b334a45a8ff 189 * @param hcrc: pointer to a CRC_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 190 * the configuration information for CRC
bogdanm 0:9b334a45a8ff 191 * @retval None
bogdanm 0:9b334a45a8ff 192 */
bogdanm 0:9b334a45a8ff 193 __weak void HAL_CRC_MspDeInit(CRC_HandleTypeDef *hcrc)
bogdanm 0:9b334a45a8ff 194 {
bogdanm 0:9b334a45a8ff 195 /* NOTE : This function Should not be modified, when the callback is needed,
bogdanm 0:9b334a45a8ff 196 the HAL_CRC_MspDeInit could be implemented in the user file
bogdanm 0:9b334a45a8ff 197 */
bogdanm 0:9b334a45a8ff 198 }
bogdanm 0:9b334a45a8ff 199
bogdanm 0:9b334a45a8ff 200 /**
bogdanm 0:9b334a45a8ff 201 * @}
bogdanm 0:9b334a45a8ff 202 */
bogdanm 0:9b334a45a8ff 203
bogdanm 0:9b334a45a8ff 204 /** @addtogroup CRC_Exported_Functions_Group2
bogdanm 0:9b334a45a8ff 205 * @brief Peripheral Control functions
bogdanm 0:9b334a45a8ff 206 *
bogdanm 0:9b334a45a8ff 207 @verbatim
bogdanm 0:9b334a45a8ff 208 ==============================================================================
bogdanm 0:9b334a45a8ff 209 ##### Peripheral Control functions #####
bogdanm 0:9b334a45a8ff 210 ==============================================================================
bogdanm 0:9b334a45a8ff 211 [..] This section provides functions allowing to:
bogdanm 0:9b334a45a8ff 212 (+) Compute the 32-bit CRC value of 32-bit data buffer,
bogdanm 0:9b334a45a8ff 213 using combination of the previous CRC value and the new one.
bogdanm 0:9b334a45a8ff 214 (+) Compute the 32-bit CRC value of 32-bit data buffer,
bogdanm 0:9b334a45a8ff 215 independently of the previous CRC value.
bogdanm 0:9b334a45a8ff 216
bogdanm 0:9b334a45a8ff 217 @endverbatim
bogdanm 0:9b334a45a8ff 218 * @{
bogdanm 0:9b334a45a8ff 219 */
bogdanm 0:9b334a45a8ff 220
bogdanm 0:9b334a45a8ff 221 /**
bogdanm 0:9b334a45a8ff 222 * @brief Computes the 32-bit CRC of 32-bit data buffer using combination
bogdanm 0:9b334a45a8ff 223 * of the previous CRC value and the new one.
bogdanm 0:9b334a45a8ff 224 * @param hcrc: pointer to a CRC_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 225 * the configuration information for CRC
bogdanm 0:9b334a45a8ff 226 * @param pBuffer: pointer to the buffer containing the data to be computed
bogdanm 0:9b334a45a8ff 227 * @param BufferLength: length of the buffer to be computed
bogdanm 0:9b334a45a8ff 228 * @retval 32-bit CRC
bogdanm 0:9b334a45a8ff 229 */
bogdanm 0:9b334a45a8ff 230 uint32_t HAL_CRC_Accumulate(CRC_HandleTypeDef *hcrc, uint32_t pBuffer[], uint32_t BufferLength)
bogdanm 0:9b334a45a8ff 231 {
bogdanm 0:9b334a45a8ff 232 uint32_t index = 0;
bogdanm 0:9b334a45a8ff 233
bogdanm 0:9b334a45a8ff 234 /* Process Locked */
bogdanm 0:9b334a45a8ff 235 __HAL_LOCK(hcrc);
bogdanm 0:9b334a45a8ff 236
bogdanm 0:9b334a45a8ff 237 /* Change CRC peripheral state */
bogdanm 0:9b334a45a8ff 238 hcrc->State = HAL_CRC_STATE_BUSY;
bogdanm 0:9b334a45a8ff 239
bogdanm 0:9b334a45a8ff 240 /* Enter Data to the CRC calculator */
bogdanm 0:9b334a45a8ff 241 for(index = 0; index < BufferLength; index++)
bogdanm 0:9b334a45a8ff 242 {
bogdanm 0:9b334a45a8ff 243 hcrc->Instance->DR = pBuffer[index];
bogdanm 0:9b334a45a8ff 244 }
bogdanm 0:9b334a45a8ff 245
bogdanm 0:9b334a45a8ff 246 /* Change CRC peripheral state */
bogdanm 0:9b334a45a8ff 247 hcrc->State = HAL_CRC_STATE_READY;
bogdanm 0:9b334a45a8ff 248
bogdanm 0:9b334a45a8ff 249 /* Process Unlocked */
bogdanm 0:9b334a45a8ff 250 __HAL_UNLOCK(hcrc);
bogdanm 0:9b334a45a8ff 251
bogdanm 0:9b334a45a8ff 252 /* Return the CRC computed value */
bogdanm 0:9b334a45a8ff 253 return hcrc->Instance->DR;
bogdanm 0:9b334a45a8ff 254 }
bogdanm 0:9b334a45a8ff 255
bogdanm 0:9b334a45a8ff 256 /**
bogdanm 0:9b334a45a8ff 257 * @brief Computes the 32-bit CRC of 32-bit data buffer independently
bogdanm 0:9b334a45a8ff 258 * of the previous CRC value.
bogdanm 0:9b334a45a8ff 259 * @param hcrc: pointer to a CRC_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 260 * the configuration information for CRC
bogdanm 0:9b334a45a8ff 261 * @param pBuffer: Pointer to the buffer containing the data to be computed
bogdanm 0:9b334a45a8ff 262 * @param BufferLength: Length of the buffer to be computed
bogdanm 0:9b334a45a8ff 263 * @retval 32-bit CRC
bogdanm 0:9b334a45a8ff 264 */
bogdanm 0:9b334a45a8ff 265 uint32_t HAL_CRC_Calculate(CRC_HandleTypeDef *hcrc, uint32_t pBuffer[], uint32_t BufferLength)
bogdanm 0:9b334a45a8ff 266 {
bogdanm 0:9b334a45a8ff 267 uint32_t index = 0;
bogdanm 0:9b334a45a8ff 268
bogdanm 0:9b334a45a8ff 269 /* Process Locked */
bogdanm 0:9b334a45a8ff 270 __HAL_LOCK(hcrc);
bogdanm 0:9b334a45a8ff 271
bogdanm 0:9b334a45a8ff 272 /* Change CRC peripheral state */
bogdanm 0:9b334a45a8ff 273 hcrc->State = HAL_CRC_STATE_BUSY;
bogdanm 0:9b334a45a8ff 274
bogdanm 0:9b334a45a8ff 275 /* Reset CRC Calculation Unit */
bogdanm 0:9b334a45a8ff 276 __HAL_CRC_DR_RESET(hcrc);
bogdanm 0:9b334a45a8ff 277
bogdanm 0:9b334a45a8ff 278 /* Enter Data to the CRC calculator */
bogdanm 0:9b334a45a8ff 279 for(index = 0; index < BufferLength; index++)
bogdanm 0:9b334a45a8ff 280 {
bogdanm 0:9b334a45a8ff 281 hcrc->Instance->DR = pBuffer[index];
bogdanm 0:9b334a45a8ff 282 }
bogdanm 0:9b334a45a8ff 283
bogdanm 0:9b334a45a8ff 284 /* Change CRC peripheral state */
bogdanm 0:9b334a45a8ff 285 hcrc->State = HAL_CRC_STATE_READY;
bogdanm 0:9b334a45a8ff 286
bogdanm 0:9b334a45a8ff 287 /* Process Unlocked */
bogdanm 0:9b334a45a8ff 288 __HAL_UNLOCK(hcrc);
bogdanm 0:9b334a45a8ff 289
bogdanm 0:9b334a45a8ff 290 /* Return the CRC computed value */
bogdanm 0:9b334a45a8ff 291 return hcrc->Instance->DR;
bogdanm 0:9b334a45a8ff 292 }
bogdanm 0:9b334a45a8ff 293
bogdanm 0:9b334a45a8ff 294 /**
bogdanm 0:9b334a45a8ff 295 * @}
bogdanm 0:9b334a45a8ff 296 */
bogdanm 0:9b334a45a8ff 297
bogdanm 0:9b334a45a8ff 298
bogdanm 0:9b334a45a8ff 299 /** @addtogroup CRC_Exported_Functions_Group3
bogdanm 0:9b334a45a8ff 300 * @brief Peripheral State functions
bogdanm 0:9b334a45a8ff 301 *
bogdanm 0:9b334a45a8ff 302 @verbatim
bogdanm 0:9b334a45a8ff 303 ==============================================================================
bogdanm 0:9b334a45a8ff 304 ##### Peripheral State functions #####
bogdanm 0:9b334a45a8ff 305 ==============================================================================
bogdanm 0:9b334a45a8ff 306 [..]
bogdanm 0:9b334a45a8ff 307 This subsection permits to get in run-time the status of the peripheral
bogdanm 0:9b334a45a8ff 308 and the data flow.
bogdanm 0:9b334a45a8ff 309
bogdanm 0:9b334a45a8ff 310 @endverbatim
bogdanm 0:9b334a45a8ff 311 * @{
bogdanm 0:9b334a45a8ff 312 */
bogdanm 0:9b334a45a8ff 313
bogdanm 0:9b334a45a8ff 314 /**
bogdanm 0:9b334a45a8ff 315 * @brief Returns the CRC state.
bogdanm 0:9b334a45a8ff 316 * @param hcrc: pointer to a CRC_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 317 * the configuration information for CRC
bogdanm 0:9b334a45a8ff 318 * @retval HAL state
bogdanm 0:9b334a45a8ff 319 */
bogdanm 0:9b334a45a8ff 320 HAL_CRC_StateTypeDef HAL_CRC_GetState(CRC_HandleTypeDef *hcrc)
bogdanm 0:9b334a45a8ff 321 {
bogdanm 0:9b334a45a8ff 322 return hcrc->State;
bogdanm 0:9b334a45a8ff 323 }
bogdanm 0:9b334a45a8ff 324
bogdanm 0:9b334a45a8ff 325 /**
bogdanm 0:9b334a45a8ff 326 * @}
bogdanm 0:9b334a45a8ff 327 */
bogdanm 0:9b334a45a8ff 328
bogdanm 0:9b334a45a8ff 329 /**
bogdanm 0:9b334a45a8ff 330 * @}
bogdanm 0:9b334a45a8ff 331 */
bogdanm 0:9b334a45a8ff 332
bogdanm 0:9b334a45a8ff 333 #endif /* HAL_CRC_MODULE_ENABLED */
bogdanm 0:9b334a45a8ff 334 /**
bogdanm 0:9b334a45a8ff 335 * @}
bogdanm 0:9b334a45a8ff 336 */
bogdanm 0:9b334a45a8ff 337
bogdanm 0:9b334a45a8ff 338 /**
bogdanm 0:9b334a45a8ff 339 * @}
bogdanm 0:9b334a45a8ff 340 */
bogdanm 0:9b334a45a8ff 341
bogdanm 0:9b334a45a8ff 342 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/