/** ****************************************************************************** * @file stm32l4xx_ll_crc.c * @author MCD Application Team * @brief CRC LL module driver. ****************************************************************************** * @attention * * Copyright (c) 2017 STMicroelectronics. * All rights reserved. * * This software is licensed under terms that can be found in the LICENSE file * in the root directory of this software component. * If no LICENSE file comes with this software, it is provided AS-IS. * ****************************************************************************** */ #if defined(USE_FULL_LL_DRIVER) /* Includes ------------------------------------------------------------------*/ #include "stm32l4xx_ll_crc.h" #include "stm32l4xx_ll_bus.h" #ifdef USE_FULL_ASSERT #include "stm32_assert.h" #else #define assert_param(expr) ((void)0U) #endif /* USE_FULL_ASSERT */ /** @addtogroup STM32L4xx_LL_Driver * @{ */ #if defined (CRC) /** @addtogroup CRC_LL * @{ */ /* Private types -------------------------------------------------------------*/ /* Private variables ---------------------------------------------------------*/ /* Private constants ---------------------------------------------------------*/ /* Private macros ------------------------------------------------------------*/ /* Private function prototypes -----------------------------------------------*/ /* Exported functions --------------------------------------------------------*/ /** @addtogroup CRC_LL_Exported_Functions * @{ */ /** @addtogroup CRC_LL_EF_Init * @{ */ /** * @brief De-initialize CRC registers (Registers restored to their default values). * @param CRCx CRC Instance * @retval An ErrorStatus enumeration value: * - SUCCESS: CRC registers are de-initialized * - ERROR: CRC registers are not de-initialized */ ErrorStatus LL_CRC_DeInit(const CRC_TypeDef *CRCx) { ErrorStatus status = SUCCESS; /* Check the parameters */ assert_param(IS_CRC_ALL_INSTANCE(CRCx)); if (CRCx == CRC) { /* Force CRC reset */ LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_CRC); /* Release CRC reset */ LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_CRC); } else { status = ERROR; } return (status); } /** * @} */ /** * @} */ /** * @} */ #endif /* defined (CRC) */ /** * @} */ #endif /* USE_FULL_LL_DRIVER */