| /** |
| ****************************************************************************** |
| * @file stm32f1xx_ll_crc.c |
| * @author MCD Application Team |
| * @brief CRC LL module driver. |
| ****************************************************************************** |
| * @attention |
| * |
| * <h2><center>© Copyright (c) 2016 STMicroelectronics. |
| * All rights reserved.</center></h2> |
| * |
| * This software component is licensed by ST under BSD 3-Clause license, |
| * the "License"; You may not use this file except in compliance with the |
| * License. You may obtain a copy of the License at: |
| * opensource.org/licenses/BSD-3-Clause |
| * |
| ****************************************************************************** |
| */ |
| #if defined(USE_FULL_LL_DRIVER) |
| |
| /* Includes ------------------------------------------------------------------*/ |
| #include "stm32f1xx_ll_crc.h" |
| #include "stm32f1xx_ll_bus.h" |
| |
| #ifdef USE_FULL_ASSERT |
| #include "stm32_assert.h" |
| #else |
| #define assert_param(expr) ((void)0U) |
| #endif |
| |
| /** @addtogroup STM32F1xx_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(CRC_TypeDef *CRCx) |
| { |
| ErrorStatus status = SUCCESS; |
| |
| /* Check the parameters */ |
| assert_param(IS_CRC_ALL_INSTANCE(CRCx)); |
| |
| if (CRCx == CRC) |
| { |
| |
| /* Reset the CRC calculation unit */ |
| LL_CRC_ResetCRCCalculationUnit(CRCx); |
| |
| /* Reset IDR register */ |
| LL_CRC_Write_IDR(CRCx, 0x00U); |
| } |
| else |
| { |
| status = ERROR; |
| } |
| |
| return (status); |
| } |
| |
| /** |
| * @} |
| */ |
| |
| /** |
| * @} |
| */ |
| |
| /** |
| * @} |
| */ |
| |
| #endif /* defined (CRC) */ |
| |
| /** |
| * @} |
| */ |
| |
| #endif /* USE_FULL_LL_DRIVER */ |
| |
| /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |
| |
