/**
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******************************************************************************
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* @file stm32f1xx_ll_crc.h
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* @author MCD Application Team
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* @brief Header file of CRC LL module.
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******************************************************************************
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* @attention
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*
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* <h2><center>© Copyright (c) 2016 STMicroelectronics.
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* All rights reserved.</center></h2>
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*
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* This software component is licensed by ST under BSD 3-Clause license,
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* the "License"; You may not use this file except in compliance with the
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* License. You may obtain a copy of the License at:
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* opensource.org/licenses/BSD-3-Clause
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*
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******************************************************************************
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*/
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/* Define to prevent recursive inclusion -------------------------------------*/
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#ifndef STM32F1xx_LL_CRC_H
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#define STM32F1xx_LL_CRC_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Includes ------------------------------------------------------------------*/
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#include "stm32f1xx.h"
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/** @addtogroup STM32F1xx_LL_Driver
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* @{
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*/
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#if defined(CRC)
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/** @defgroup CRC_LL CRC
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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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/* Exported types ------------------------------------------------------------*/
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/* Exported constants --------------------------------------------------------*/
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/** @defgroup CRC_LL_Exported_Constants CRC Exported Constants
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* @{
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*/
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/**
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* @}
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*/
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/* Exported macro ------------------------------------------------------------*/
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/** @defgroup CRC_LL_Exported_Macros CRC Exported Macros
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* @{
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*/
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/** @defgroup CRC_LL_EM_WRITE_READ Common Write and read registers Macros
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* @{
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*/
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/**
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* @brief Write a value in CRC register
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* @param __INSTANCE__ CRC Instance
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* @param __REG__ Register to be written
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* @param __VALUE__ Value to be written in the register
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* @retval None
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*/
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#define LL_CRC_WriteReg(__INSTANCE__, __REG__, __VALUE__) WRITE_REG(__INSTANCE__->__REG__, __VALUE__)
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/**
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* @brief Read a value in CRC register
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* @param __INSTANCE__ CRC Instance
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* @param __REG__ Register to be read
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* @retval Register value
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*/
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#define LL_CRC_ReadReg(__INSTANCE__, __REG__) READ_REG(__INSTANCE__->__REG__)
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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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/* Exported functions --------------------------------------------------------*/
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/** @defgroup CRC_LL_Exported_Functions CRC Exported Functions
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* @{
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*/
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/** @defgroup CRC_LL_EF_Configuration CRC Configuration functions
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* @{
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*/
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/**
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* @brief Reset the CRC calculation unit.
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* @note If Programmable Initial CRC value feature
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* is available, also set the Data Register to the value stored in the
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* CRC_INIT register, otherwise, reset Data Register to its default value.
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* @rmtoll CR RESET LL_CRC_ResetCRCCalculationUnit
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* @param CRCx CRC Instance
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* @retval None
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*/
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__STATIC_INLINE void LL_CRC_ResetCRCCalculationUnit(CRC_TypeDef *CRCx)
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{
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SET_BIT(CRCx->CR, CRC_CR_RESET);
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}
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/**
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* @}
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*/
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/** @defgroup CRC_LL_EF_Data_Management Data_Management
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* @{
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*/
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/**
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* @brief Write given 32-bit data to the CRC calculator
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* @rmtoll DR DR LL_CRC_FeedData32
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* @param CRCx CRC Instance
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* @param InData value to be provided to CRC calculator between between Min_Data=0 and Max_Data=0xFFFFFFFF
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* @retval None
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*/
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__STATIC_INLINE void LL_CRC_FeedData32(CRC_TypeDef *CRCx, uint32_t InData)
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{
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WRITE_REG(CRCx->DR, InData);
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}
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/**
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* @brief Return current CRC calculation result. 32 bits value is returned.
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* @rmtoll DR DR LL_CRC_ReadData32
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* @param CRCx CRC Instance
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* @retval Current CRC calculation result as stored in CRC_DR register (32 bits).
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*/
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__STATIC_INLINE uint32_t LL_CRC_ReadData32(CRC_TypeDef *CRCx)
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{
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return (uint32_t)(READ_REG(CRCx->DR));
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}
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/**
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* @brief Return data stored in the Independent Data(IDR) register.
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* @note This register can be used as a temporary storage location for one byte.
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* @rmtoll IDR IDR LL_CRC_Read_IDR
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* @param CRCx CRC Instance
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* @retval Value stored in CRC_IDR register (General-purpose 8-bit data register).
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*/
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__STATIC_INLINE uint32_t LL_CRC_Read_IDR(CRC_TypeDef *CRCx)
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{
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return (uint32_t)(READ_REG(CRCx->IDR));
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}
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/**
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* @brief Store data in the Independent Data(IDR) register.
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* @note This register can be used as a temporary storage location for one byte.
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* @rmtoll IDR IDR LL_CRC_Write_IDR
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* @param CRCx CRC Instance
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* @param InData value to be stored in CRC_IDR register (8-bit) between Min_Data=0 and Max_Data=0xFF
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* @retval None
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*/
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__STATIC_INLINE void LL_CRC_Write_IDR(CRC_TypeDef *CRCx, uint32_t InData)
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{
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*((uint8_t __IO *)(&CRCx->IDR)) = (uint8_t) InData;
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}
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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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/** @defgroup CRC_LL_EF_Init Initialization and de-initialization functions
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* @{
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*/
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ErrorStatus LL_CRC_DeInit(CRC_TypeDef *CRCx);
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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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* @}
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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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#ifdef __cplusplus
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}
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#endif
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#endif /* STM32F1xx_LL_CRC_H */
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/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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