343 lines
14 KiB
C
343 lines
14 KiB
C
/**
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******************************************************************************
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* @file stm32f7xx_hal_crc.h
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* @author MCD Application Team
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* @brief Header file of CRC HAL module.
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******************************************************************************
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* @attention
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*
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* Copyright (c) 2017 STMicroelectronics.
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* All rights reserved.
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*
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* This software is licensed under terms that can be found in the LICENSE file
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* in the root directory of this software component.
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* If no LICENSE file comes with this software, it is provided AS-IS.
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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 STM32F7xx_HAL_CRC_H
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#define STM32F7xx_HAL_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 "stm32f7xx_hal_def.h"
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/** @addtogroup STM32F7xx_HAL_Driver
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* @{
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*/
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/** @addtogroup CRC
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* @{
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*/
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/* Exported types ------------------------------------------------------------*/
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/** @defgroup CRC_Exported_Types CRC Exported Types
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* @{
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*/
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/**
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* @brief CRC HAL State Structure definition
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*/
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typedef enum
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{
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HAL_CRC_STATE_RESET = 0x00U, /*!< CRC not yet initialized or disabled */
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HAL_CRC_STATE_READY = 0x01U, /*!< CRC initialized and ready for use */
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HAL_CRC_STATE_BUSY = 0x02U, /*!< CRC internal process is ongoing */
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HAL_CRC_STATE_TIMEOUT = 0x03U, /*!< CRC timeout state */
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HAL_CRC_STATE_ERROR = 0x04U /*!< CRC error state */
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} HAL_CRC_StateTypeDef;
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/**
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* @brief CRC Init Structure definition
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*/
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typedef struct
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{
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uint8_t DefaultPolynomialUse; /*!< This parameter is a value of @ref CRC_Default_Polynomial and indicates if default polynomial is used.
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If set to DEFAULT_POLYNOMIAL_ENABLE, resort to default
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X^32 + X^26 + X^23 + X^22 + X^16 + X^12 + X^11 + X^10 +X^8 + X^7 + X^5 +
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X^4 + X^2+ X +1.
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In that case, there is no need to set GeneratingPolynomial field.
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If otherwise set to DEFAULT_POLYNOMIAL_DISABLE, GeneratingPolynomial and
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CRCLength fields must be set. */
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uint8_t DefaultInitValueUse; /*!< This parameter is a value of @ref CRC_Default_InitValue_Use and indicates if default init value is used.
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If set to DEFAULT_INIT_VALUE_ENABLE, resort to default
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0xFFFFFFFF value. In that case, there is no need to set InitValue field. If
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otherwise set to DEFAULT_INIT_VALUE_DISABLE, InitValue field must be set. */
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uint32_t GeneratingPolynomial; /*!< Set CRC generating polynomial as a 7, 8, 16 or 32-bit long value for a polynomial degree
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respectively equal to 7, 8, 16 or 32. This field is written in normal,
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representation e.g., for a polynomial of degree 7, X^7 + X^6 + X^5 + X^2 + 1
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is written 0x65. No need to specify it if DefaultPolynomialUse is set to
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DEFAULT_POLYNOMIAL_ENABLE. */
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uint32_t CRCLength; /*!< This parameter is a value of @ref CRC_Polynomial_Sizes and indicates CRC length.
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Value can be either one of
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@arg @ref CRC_POLYLENGTH_32B (32-bit CRC),
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@arg @ref CRC_POLYLENGTH_16B (16-bit CRC),
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@arg @ref CRC_POLYLENGTH_8B (8-bit CRC),
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@arg @ref CRC_POLYLENGTH_7B (7-bit CRC). */
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uint32_t InitValue; /*!< Init value to initiate CRC computation. No need to specify it if DefaultInitValueUse
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is set to DEFAULT_INIT_VALUE_ENABLE. */
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uint32_t InputDataInversionMode; /*!< This parameter is a value of @ref CRCEx_Input_Data_Inversion and specifies input data inversion mode.
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Can be either one of the following values
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@arg @ref CRC_INPUTDATA_INVERSION_NONE no input data inversion
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@arg @ref CRC_INPUTDATA_INVERSION_BYTE byte-wise inversion, 0x1A2B3C4D
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becomes 0x58D43CB2
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@arg @ref CRC_INPUTDATA_INVERSION_HALFWORD halfword-wise inversion,
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0x1A2B3C4D becomes 0xD458B23C
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@arg @ref CRC_INPUTDATA_INVERSION_WORD word-wise inversion, 0x1A2B3C4D
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becomes 0xB23CD458 */
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uint32_t OutputDataInversionMode; /*!< This parameter is a value of @ref CRCEx_Output_Data_Inversion and specifies output data (i.e. CRC) inversion mode.
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Can be either
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@arg @ref CRC_OUTPUTDATA_INVERSION_DISABLE no CRC inversion,
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@arg @ref CRC_OUTPUTDATA_INVERSION_ENABLE CRC 0x11223344 is converted
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into 0x22CC4488 */
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} CRC_InitTypeDef;
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/**
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* @brief CRC Handle Structure definition
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*/
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typedef struct
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{
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CRC_TypeDef *Instance; /*!< Register base address */
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CRC_InitTypeDef Init; /*!< CRC configuration parameters */
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HAL_LockTypeDef Lock; /*!< CRC Locking object */
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__IO HAL_CRC_StateTypeDef State; /*!< CRC communication state */
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uint32_t InputDataFormat; /*!< This parameter is a value of @ref CRC_Input_Buffer_Format and specifies input data format.
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Can be either
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@arg @ref CRC_INPUTDATA_FORMAT_BYTES input data is a stream of bytes
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(8-bit data)
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@arg @ref CRC_INPUTDATA_FORMAT_HALFWORDS input data is a stream of
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half-words (16-bit data)
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@arg @ref CRC_INPUTDATA_FORMAT_WORDS input data is a stream of words
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(32-bit data)
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Note that constant CRC_INPUT_FORMAT_UNDEFINED is defined but an initialization
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error must occur if InputBufferFormat is not one of the three values listed
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above */
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} CRC_HandleTypeDef;
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/**
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* @}
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*/
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/* Exported constants --------------------------------------------------------*/
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/** @defgroup CRC_Exported_Constants CRC Exported Constants
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* @{
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*/
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/** @defgroup CRC_Default_Polynomial_Value Default CRC generating polynomial
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* @{
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*/
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#define DEFAULT_CRC32_POLY 0x04C11DB7U /*!< X^32 + X^26 + X^23 + X^22 + X^16 + X^12 + X^11 + X^10 +X^8 + X^7 + X^5 + X^4 + X^2+ X +1 */
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/**
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* @}
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*/
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/** @defgroup CRC_Default_InitValue Default CRC computation initialization value
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* @{
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*/
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#define DEFAULT_CRC_INITVALUE 0xFFFFFFFFU /*!< Initial CRC default value */
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/**
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* @}
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*/
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/** @defgroup CRC_Default_Polynomial Indicates whether or not default polynomial is used
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* @{
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*/
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#define DEFAULT_POLYNOMIAL_ENABLE ((uint8_t)0x00U) /*!< Enable default generating polynomial 0x04C11DB7 */
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#define DEFAULT_POLYNOMIAL_DISABLE ((uint8_t)0x01U) /*!< Disable default generating polynomial 0x04C11DB7 */
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/**
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* @}
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*/
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/** @defgroup CRC_Default_InitValue_Use Indicates whether or not default init value is used
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* @{
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*/
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#define DEFAULT_INIT_VALUE_ENABLE ((uint8_t)0x00U) /*!< Enable initial CRC default value */
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#define DEFAULT_INIT_VALUE_DISABLE ((uint8_t)0x01U) /*!< Disable initial CRC default value */
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/**
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* @}
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*/
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/** @defgroup CRC_Polynomial_Sizes Polynomial sizes to configure the peripheral
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* @{
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*/
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#define CRC_POLYLENGTH_32B 0x00000000U /*!< Resort to a 32-bit long generating polynomial */
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#define CRC_POLYLENGTH_16B CRC_CR_POLYSIZE_0 /*!< Resort to a 16-bit long generating polynomial */
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#define CRC_POLYLENGTH_8B CRC_CR_POLYSIZE_1 /*!< Resort to a 8-bit long generating polynomial */
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#define CRC_POLYLENGTH_7B CRC_CR_POLYSIZE /*!< Resort to a 7-bit long generating polynomial */
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/**
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* @}
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*/
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/** @defgroup CRC_Polynomial_Size_Definitions CRC polynomial possible sizes actual definitions
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* @{
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*/
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#define HAL_CRC_LENGTH_32B 32U /*!< 32-bit long CRC */
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#define HAL_CRC_LENGTH_16B 16U /*!< 16-bit long CRC */
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#define HAL_CRC_LENGTH_8B 8U /*!< 8-bit long CRC */
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#define HAL_CRC_LENGTH_7B 7U /*!< 7-bit long CRC */
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/**
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* @}
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*/
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/** @defgroup CRC_Input_Buffer_Format Input Buffer Format
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* @{
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*/
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/* WARNING: CRC_INPUT_FORMAT_UNDEFINED is created for reference purposes but
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* an error is triggered in HAL_CRC_Init() if InputDataFormat field is set
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* to CRC_INPUT_FORMAT_UNDEFINED: the format MUST be defined by the user for
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* the CRC APIs to provide a correct result */
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#define CRC_INPUTDATA_FORMAT_UNDEFINED 0x00000000U /*!< Undefined input data format */
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#define CRC_INPUTDATA_FORMAT_BYTES 0x00000001U /*!< Input data in byte format */
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#define CRC_INPUTDATA_FORMAT_HALFWORDS 0x00000002U /*!< Input data in half-word format */
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#define CRC_INPUTDATA_FORMAT_WORDS 0x00000003U /*!< Input data in word format */
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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 macros -----------------------------------------------------------*/
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/** @defgroup CRC_Exported_Macros CRC Exported Macros
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* @{
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*/
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/** @brief Reset CRC handle state.
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* @param __HANDLE__ CRC handle.
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* @retval None
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*/
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#define __HAL_CRC_RESET_HANDLE_STATE(__HANDLE__) ((__HANDLE__)->State = HAL_CRC_STATE_RESET)
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/**
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* @brief Reset CRC Data Register.
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* @param __HANDLE__ CRC handle
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* @retval None
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*/
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#define __HAL_CRC_DR_RESET(__HANDLE__) ((__HANDLE__)->Instance->CR |= CRC_CR_RESET)
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/**
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* @brief Set CRC INIT non-default value
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* @param __HANDLE__ CRC handle
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* @param __INIT__ 32-bit initial value
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* @retval None
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*/
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#define __HAL_CRC_INITIALCRCVALUE_CONFIG(__HANDLE__, __INIT__) ((__HANDLE__)->Instance->INIT = (__INIT__))
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/**
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* @brief Store data in the Independent Data (ID) register.
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* @param __HANDLE__ CRC handle
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* @param __VALUE__ Value to be stored in the ID register
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* @note Refer to the Reference Manual to get the authorized __VALUE__ length in bits
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* @retval None
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*/
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#define __HAL_CRC_SET_IDR(__HANDLE__, __VALUE__) (WRITE_REG((__HANDLE__)->Instance->IDR, (__VALUE__)))
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/**
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* @brief Return the data stored in the Independent Data (ID) register.
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* @param __HANDLE__ CRC handle
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* @note Refer to the Reference Manual to get the authorized __VALUE__ length in bits
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* @retval Value of the ID register
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*/
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#define __HAL_CRC_GET_IDR(__HANDLE__) (((__HANDLE__)->Instance->IDR) & CRC_IDR_IDR)
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/**
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* @}
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*/
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/* Private macros --------------------------------------------------------*/
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/** @defgroup CRC_Private_Macros CRC Private Macros
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* @{
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*/
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#define IS_DEFAULT_POLYNOMIAL(DEFAULT) (((DEFAULT) == DEFAULT_POLYNOMIAL_ENABLE) || \
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((DEFAULT) == DEFAULT_POLYNOMIAL_DISABLE))
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#define IS_DEFAULT_INIT_VALUE(VALUE) (((VALUE) == DEFAULT_INIT_VALUE_ENABLE) || \
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((VALUE) == DEFAULT_INIT_VALUE_DISABLE))
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#define IS_CRC_POL_LENGTH(LENGTH) (((LENGTH) == CRC_POLYLENGTH_32B) || \
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((LENGTH) == CRC_POLYLENGTH_16B) || \
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((LENGTH) == CRC_POLYLENGTH_8B) || \
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((LENGTH) == CRC_POLYLENGTH_7B))
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#define IS_CRC_INPUTDATA_FORMAT(FORMAT) (((FORMAT) == CRC_INPUTDATA_FORMAT_BYTES) || \
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((FORMAT) == CRC_INPUTDATA_FORMAT_HALFWORDS) || \
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((FORMAT) == CRC_INPUTDATA_FORMAT_WORDS))
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/**
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* @}
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*/
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/* Include CRC HAL Extended module */
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#include "stm32f7xx_hal_crc_ex.h"
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/* Exported functions --------------------------------------------------------*/
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/** @defgroup CRC_Exported_Functions CRC Exported Functions
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* @{
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*/
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/* Initialization and de-initialization functions ****************************/
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/** @defgroup CRC_Exported_Functions_Group1 Initialization and de-initialization functions
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* @{
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*/
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HAL_StatusTypeDef HAL_CRC_Init(CRC_HandleTypeDef *hcrc);
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HAL_StatusTypeDef HAL_CRC_DeInit(CRC_HandleTypeDef *hcrc);
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void HAL_CRC_MspInit(CRC_HandleTypeDef *hcrc);
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void HAL_CRC_MspDeInit(CRC_HandleTypeDef *hcrc);
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/**
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* @}
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*/
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/* Peripheral Control functions ***********************************************/
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/** @defgroup CRC_Exported_Functions_Group2 Peripheral Control functions
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* @{
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*/
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uint32_t HAL_CRC_Accumulate(CRC_HandleTypeDef *hcrc, uint32_t pBuffer[], uint32_t BufferLength);
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uint32_t HAL_CRC_Calculate(CRC_HandleTypeDef *hcrc, uint32_t pBuffer[], uint32_t BufferLength);
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/**
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* @}
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*/
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/* Peripheral State and Error functions ***************************************/
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/** @defgroup CRC_Exported_Functions_Group3 Peripheral State functions
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* @{
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*/
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HAL_CRC_StateTypeDef HAL_CRC_GetState(CRC_HandleTypeDef *hcrc);
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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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#ifdef __cplusplus
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}
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#endif
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#endif /* STM32F7xx_HAL_CRC_H */
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