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342 lines
14 KiB
342 lines
14 KiB
/** |
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****************************************************************************** |
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* @file stm32l4xx_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 STM32L4xx_HAL_CRC_H |
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#define STM32L4xx_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 "stm32l4xx_hal_def.h" |
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/** @addtogroup STM32L4xx_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 "stm32l4xx_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 /* STM32L4xx_HAL_CRC_H */
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