/**+
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  ******************************************************************************+
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  * @file    stm32f4xx_ll_crc.c+
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  * @author  MCD Application Team+
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  * @brief   CRC LL module driver.+
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  ******************************************************************************+
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  * @attention+
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  *+
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  * <h2><center>&copy; COPYRIGHT(c) 2017 STMicroelectronics</center></h2>+
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  *+
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  * Redistribution and use in source and binary forms, with or without modification,+
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  * are permitted provided that the following conditions are met:+
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  *   1. Redistributions of source code must retain the above copyright notice,+
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  *      this list of conditions and the following disclaimer.+
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  *   2. Redistributions in binary form must reproduce the above copyright notice,+
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  *      this list of conditions and the following disclaimer in the documentation+
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  *      and/or other materials provided with the distribution.+
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  *   3. Neither the name of STMicroelectronics nor the names of its contributors+
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  *      may be used to endorse or promote products derived from this software+
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  *      without specific prior written permission.+
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  *+
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  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"+
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  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE+
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  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE+
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  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE+
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  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL+
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  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR+
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  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER+
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  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,+
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  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE+
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  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.+
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  *+
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  ******************************************************************************+
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  */+
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#if defined(USE_FULL_LL_DRIVER)+
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+
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/* Includes ------------------------------------------------------------------*/+
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#include "stm32f4xx_ll_crc.h"+
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#include "stm32f4xx_ll_bus.h"+
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+
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#ifdef  USE_FULL_ASSERT+
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#include "stm32_assert.h"+
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#else+
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#define assert_param(expr) ((void)0U)+
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#endif+
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+
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/** @addtogroup STM32F4xx_LL_Driver+
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  * @{+
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  */+
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+
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#if defined (CRC)+
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+
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/** @addtogroup CRC_LL+
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  * @{+
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  */+
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+
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/* Private types -------------------------------------------------------------*/+
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/* Private variables ---------------------------------------------------------*/+
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/* Private constants ---------------------------------------------------------*/+
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/* Private macros ------------------------------------------------------------*/+
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/* Private function prototypes -----------------------------------------------*/+
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+
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/* Exported functions --------------------------------------------------------*/+
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/** @addtogroup CRC_LL_Exported_Functions+
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  * @{+
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  */+
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+
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/** @addtogroup CRC_LL_EF_Init+
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  * @{+
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  */+
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+
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/**+
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  * @brief  De-initialize CRC registers (Registers restored to their default values).+
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  * @param  CRCx CRC Instance+
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  * @retval An ErrorStatus enumeration value:+
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  *          - SUCCESS: CRC registers are de-initialized+
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  *          - ERROR: CRC registers are not de-initialized+
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  */+
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ErrorStatus LL_CRC_DeInit(CRC_TypeDef *CRCx)+
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{+
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  ErrorStatus status = SUCCESS;+
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+
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  /* Check the parameters */+
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  assert_param(IS_CRC_ALL_INSTANCE(CRCx));+
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+
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  if (CRCx == CRC)+
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  {+
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    /* Force CRC reset */+
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    LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_CRC);+
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+
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    /* Release CRC reset */+
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    LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_CRC);+
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  }+
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  else+
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  {+
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    status = ERROR;+
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  }+
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+
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  return (status);+
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}+
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+
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/**+
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  * @}+
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  */+
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+
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/**+
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  * @}+
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  */+
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+
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/**+
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  * @}+
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  */+
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+
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#endif /* defined (CRC) */+
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+
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/**+
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  * @}+
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  */+
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+
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#endif /* USE_FULL_LL_DRIVER */+
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+
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/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/+
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+
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