| /** |
| ****************************************************************************** |
| * @file stm32l0xx_hal_crc.h |
| * @author MCD Application Team |
| * @brief Header file of CRC HAL module. |
| ****************************************************************************** |
| * @attention |
| * |
| * Copyright (c) 2016 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. |
| * |
| ****************************************************************************** |
| */ |
| |
| /* Define to prevent recursive inclusion -------------------------------------*/ |
| #ifndef STM32L0xx_HAL_CRC_H |
| #define STM32L0xx_HAL_CRC_H |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /* Includes ------------------------------------------------------------------*/ |
| #include "stm32l0xx_hal_def.h" |
| |
| /** @addtogroup STM32L0xx_HAL_Driver |
| * @{ |
| */ |
| |
| /** @addtogroup CRC |
| * @{ |
| */ |
| |
| /* Exported types ------------------------------------------------------------*/ |
| /** @defgroup CRC_Exported_Types CRC Exported Types |
| * @{ |
| */ |
| |
| /** |
| * @brief CRC HAL State Structure definition |
| */ |
| typedef enum |
| { |
| HAL_CRC_STATE_RESET = 0x00U, /*!< CRC not yet initialized or disabled */ |
| HAL_CRC_STATE_READY = 0x01U, /*!< CRC initialized and ready for use */ |
| HAL_CRC_STATE_BUSY = 0x02U, /*!< CRC internal process is ongoing */ |
| HAL_CRC_STATE_TIMEOUT = 0x03U, /*!< CRC timeout state */ |
| HAL_CRC_STATE_ERROR = 0x04U /*!< CRC error state */ |
| } HAL_CRC_StateTypeDef; |
| |
| /** |
| * @brief CRC Init Structure definition |
| */ |
| typedef struct |
| { |
| uint8_t DefaultPolynomialUse; /*!< This parameter is a value of @ref CRC_Default_Polynomial and indicates if default polynomial is used. |
| If set to DEFAULT_POLYNOMIAL_ENABLE, resort to default |
| 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. |
| In that case, there is no need to set GeneratingPolynomial field. |
| If otherwise set to DEFAULT_POLYNOMIAL_DISABLE, GeneratingPolynomial and |
| CRCLength fields must be set. */ |
| |
| uint8_t DefaultInitValueUse; /*!< This parameter is a value of @ref CRC_Default_InitValue_Use and indicates if default init value is used. |
| If set to DEFAULT_INIT_VALUE_ENABLE, resort to default |
| 0xFFFFFFFF value. In that case, there is no need to set InitValue field. If |
| otherwise set to DEFAULT_INIT_VALUE_DISABLE, InitValue field must be set. */ |
| |
| uint32_t GeneratingPolynomial; /*!< Set CRC generating polynomial as a 7, 8, 16 or 32-bit long value for a polynomial degree |
| respectively equal to 7, 8, 16 or 32. This field is written in normal, |
| representation e.g., for a polynomial of degree 7, X^7 + X^6 + X^5 + X^2 + 1 |
| is written 0x65. No need to specify it if DefaultPolynomialUse is set to |
| DEFAULT_POLYNOMIAL_ENABLE. */ |
| |
| uint32_t CRCLength; /*!< This parameter is a value of @ref CRC_Polynomial_Sizes and indicates CRC length. |
| Value can be either one of |
| @arg @ref CRC_POLYLENGTH_32B (32-bit CRC), |
| @arg @ref CRC_POLYLENGTH_16B (16-bit CRC), |
| @arg @ref CRC_POLYLENGTH_8B (8-bit CRC), |
| @arg @ref CRC_POLYLENGTH_7B (7-bit CRC). */ |
| |
| uint32_t InitValue; /*!< Init value to initiate CRC computation. No need to specify it if DefaultInitValueUse |
| is set to DEFAULT_INIT_VALUE_ENABLE. */ |
| |
| uint32_t InputDataInversionMode; /*!< This parameter is a value of @ref CRCEx_Input_Data_Inversion and specifies input data inversion mode. |
| Can be either one of the following values |
| @arg @ref CRC_INPUTDATA_INVERSION_NONE no input data inversion |
| @arg @ref CRC_INPUTDATA_INVERSION_BYTE byte-wise inversion, 0x1A2B3C4D |
| becomes 0x58D43CB2 |
| @arg @ref CRC_INPUTDATA_INVERSION_HALFWORD halfword-wise inversion, |
| 0x1A2B3C4D becomes 0xD458B23C |
| @arg @ref CRC_INPUTDATA_INVERSION_WORD word-wise inversion, 0x1A2B3C4D |
| becomes 0xB23CD458 */ |
| |
| uint32_t OutputDataInversionMode; /*!< This parameter is a value of @ref CRCEx_Output_Data_Inversion and specifies output data (i.e. CRC) inversion mode. |
| Can be either |
| @arg @ref CRC_OUTPUTDATA_INVERSION_DISABLE no CRC inversion, |
| @arg @ref CRC_OUTPUTDATA_INVERSION_ENABLE CRC 0x11223344 is converted |
| into 0x22CC4488 */ |
| } CRC_InitTypeDef; |
| |
| /** |
| * @brief CRC Handle Structure definition |
| */ |
| typedef struct |
| { |
| CRC_TypeDef *Instance; /*!< Register base address */ |
| |
| CRC_InitTypeDef Init; /*!< CRC configuration parameters */ |
| |
| HAL_LockTypeDef Lock; /*!< CRC Locking object */ |
| |
| __IO HAL_CRC_StateTypeDef State; /*!< CRC communication state */ |
| |
| uint32_t InputDataFormat; /*!< This parameter is a value of @ref CRC_Input_Buffer_Format and specifies input data format. |
| Can be either |
| @arg @ref CRC_INPUTDATA_FORMAT_BYTES input data is a stream of bytes |
| (8-bit data) |
| @arg @ref CRC_INPUTDATA_FORMAT_HALFWORDS input data is a stream of |
| half-words (16-bit data) |
| @arg @ref CRC_INPUTDATA_FORMAT_WORDS input data is a stream of words |
| (32-bit data) |
| |
| Note that constant CRC_INPUT_FORMAT_UNDEFINED is defined but an initialization |
| error must occur if InputBufferFormat is not one of the three values listed |
| above */ |
| } CRC_HandleTypeDef; |
| /** |
| * @} |
| */ |
| |
| /* Exported constants --------------------------------------------------------*/ |
| /** @defgroup CRC_Exported_Constants CRC Exported Constants |
| * @{ |
| */ |
| |
| /** @defgroup CRC_Default_Polynomial_Value Default CRC generating polynomial |
| * @{ |
| */ |
| #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 */ |
| /** |
| * @} |
| */ |
| |
| /** @defgroup CRC_Default_InitValue Default CRC computation initialization value |
| * @{ |
| */ |
| #define DEFAULT_CRC_INITVALUE 0xFFFFFFFFU /*!< Initial CRC default value */ |
| /** |
| * @} |
| */ |
| |
| /** @defgroup CRC_Default_Polynomial Indicates whether or not default polynomial is used |
| * @{ |
| */ |
| #define DEFAULT_POLYNOMIAL_ENABLE ((uint8_t)0x00U) /*!< Enable default generating polynomial 0x04C11DB7 */ |
| #define DEFAULT_POLYNOMIAL_DISABLE ((uint8_t)0x01U) /*!< Disable default generating polynomial 0x04C11DB7 */ |
| /** |
| * @} |
| */ |
| |
| /** @defgroup CRC_Default_InitValue_Use Indicates whether or not default init value is used |
| * @{ |
| */ |
| #define DEFAULT_INIT_VALUE_ENABLE ((uint8_t)0x00U) /*!< Enable initial CRC default value */ |
| #define DEFAULT_INIT_VALUE_DISABLE ((uint8_t)0x01U) /*!< Disable initial CRC default value */ |
| /** |
| * @} |
| */ |
| |
| /** @defgroup CRC_Polynomial_Sizes Polynomial sizes to configure the peripheral |
| * @{ |
| */ |
| #define CRC_POLYLENGTH_32B 0x00000000U /*!< Resort to a 32-bit long generating polynomial */ |
| #define CRC_POLYLENGTH_16B CRC_CR_POLYSIZE_0 /*!< Resort to a 16-bit long generating polynomial */ |
| #define CRC_POLYLENGTH_8B CRC_CR_POLYSIZE_1 /*!< Resort to a 8-bit long generating polynomial */ |
| #define CRC_POLYLENGTH_7B CRC_CR_POLYSIZE /*!< Resort to a 7-bit long generating polynomial */ |
| /** |
| * @} |
| */ |
| |
| /** @defgroup CRC_Polynomial_Size_Definitions CRC polynomial possible sizes actual definitions |
| * @{ |
| */ |
| #define HAL_CRC_LENGTH_32B 32U /*!< 32-bit long CRC */ |
| #define HAL_CRC_LENGTH_16B 16U /*!< 16-bit long CRC */ |
| #define HAL_CRC_LENGTH_8B 8U /*!< 8-bit long CRC */ |
| #define HAL_CRC_LENGTH_7B 7U /*!< 7-bit long CRC */ |
| /** |
| * @} |
| */ |
| |
| /** @defgroup CRC_Input_Buffer_Format Input Buffer Format |
| * @{ |
| */ |
| /* WARNING: CRC_INPUT_FORMAT_UNDEFINED is created for reference purposes but |
| * an error is triggered in HAL_CRC_Init() if InputDataFormat field is set |
| * to CRC_INPUT_FORMAT_UNDEFINED: the format MUST be defined by the user for |
| * the CRC APIs to provide a correct result */ |
| #define CRC_INPUTDATA_FORMAT_UNDEFINED 0x00000000U /*!< Undefined input data format */ |
| #define CRC_INPUTDATA_FORMAT_BYTES 0x00000001U /*!< Input data in byte format */ |
| #define CRC_INPUTDATA_FORMAT_HALFWORDS 0x00000002U /*!< Input data in half-word format */ |
| #define CRC_INPUTDATA_FORMAT_WORDS 0x00000003U /*!< Input data in word format */ |
| /** |
| * @} |
| */ |
| |
| /** |
| * @} |
| */ |
| |
| /* Exported macros -----------------------------------------------------------*/ |
| /** @defgroup CRC_Exported_Macros CRC Exported Macros |
| * @{ |
| */ |
| |
| /** @brief Reset CRC handle state. |
| * @param __HANDLE__ CRC handle. |
| * @retval None |
| */ |
| #define __HAL_CRC_RESET_HANDLE_STATE(__HANDLE__) ((__HANDLE__)->State = HAL_CRC_STATE_RESET) |
| |
| /** |
| * @brief Reset CRC Data Register. |
| * @param __HANDLE__ CRC handle |
| * @retval None |
| */ |
| #define __HAL_CRC_DR_RESET(__HANDLE__) ((__HANDLE__)->Instance->CR |= CRC_CR_RESET) |
| |
| /** |
| * @brief Set CRC INIT non-default value |
| * @param __HANDLE__ CRC handle |
| * @param __INIT__ 32-bit initial value |
| * @retval None |
| */ |
| #define __HAL_CRC_INITIALCRCVALUE_CONFIG(__HANDLE__, __INIT__) ((__HANDLE__)->Instance->INIT = (__INIT__)) |
| |
| /** |
| * @brief Store data in the Independent Data (ID) register. |
| * @param __HANDLE__ CRC handle |
| * @param __VALUE__ Value to be stored in the ID register |
| * @note Refer to the Reference Manual to get the authorized __VALUE__ length in bits |
| * @retval None |
| */ |
| #define __HAL_CRC_SET_IDR(__HANDLE__, __VALUE__) (WRITE_REG((__HANDLE__)->Instance->IDR, (__VALUE__))) |
| |
| /** |
| * @brief Return the data stored in the Independent Data (ID) register. |
| * @param __HANDLE__ CRC handle |
| * @note Refer to the Reference Manual to get the authorized __VALUE__ length in bits |
| * @retval Value of the ID register |
| */ |
| #define __HAL_CRC_GET_IDR(__HANDLE__) (((__HANDLE__)->Instance->IDR) & CRC_IDR_IDR) |
| /** |
| * @} |
| */ |
| |
| |
| /* Private macros --------------------------------------------------------*/ |
| /** @defgroup CRC_Private_Macros CRC Private Macros |
| * @{ |
| */ |
| |
| #define IS_DEFAULT_POLYNOMIAL(DEFAULT) (((DEFAULT) == DEFAULT_POLYNOMIAL_ENABLE) || \ |
| ((DEFAULT) == DEFAULT_POLYNOMIAL_DISABLE)) |
| |
| #define IS_DEFAULT_INIT_VALUE(VALUE) (((VALUE) == DEFAULT_INIT_VALUE_ENABLE) || \ |
| ((VALUE) == DEFAULT_INIT_VALUE_DISABLE)) |
| |
| #define IS_CRC_POL_LENGTH(LENGTH) (((LENGTH) == CRC_POLYLENGTH_32B) || \ |
| ((LENGTH) == CRC_POLYLENGTH_16B) || \ |
| ((LENGTH) == CRC_POLYLENGTH_8B) || \ |
| ((LENGTH) == CRC_POLYLENGTH_7B)) |
| |
| #define IS_CRC_INPUTDATA_FORMAT(FORMAT) (((FORMAT) == CRC_INPUTDATA_FORMAT_BYTES) || \ |
| ((FORMAT) == CRC_INPUTDATA_FORMAT_HALFWORDS) || \ |
| ((FORMAT) == CRC_INPUTDATA_FORMAT_WORDS)) |
| |
| /** |
| * @} |
| */ |
| |
| /* Include CRC HAL Extended module */ |
| #include "stm32l0xx_hal_crc_ex.h" |
| |
| /* Exported functions --------------------------------------------------------*/ |
| /** @defgroup CRC_Exported_Functions CRC Exported Functions |
| * @{ |
| */ |
| |
| /* Initialization and de-initialization functions ****************************/ |
| /** @defgroup CRC_Exported_Functions_Group1 Initialization and de-initialization functions |
| * @{ |
| */ |
| HAL_StatusTypeDef HAL_CRC_Init(CRC_HandleTypeDef *hcrc); |
| HAL_StatusTypeDef HAL_CRC_DeInit(CRC_HandleTypeDef *hcrc); |
| void HAL_CRC_MspInit(CRC_HandleTypeDef *hcrc); |
| void HAL_CRC_MspDeInit(CRC_HandleTypeDef *hcrc); |
| /** |
| * @} |
| */ |
| |
| /* Peripheral Control functions ***********************************************/ |
| /** @defgroup CRC_Exported_Functions_Group2 Peripheral Control functions |
| * @{ |
| */ |
| uint32_t HAL_CRC_Accumulate(CRC_HandleTypeDef *hcrc, uint32_t pBuffer[], uint32_t BufferLength); |
| uint32_t HAL_CRC_Calculate(CRC_HandleTypeDef *hcrc, uint32_t pBuffer[], uint32_t BufferLength); |
| /** |
| * @} |
| */ |
| |
| /* Peripheral State and Error functions ***************************************/ |
| /** @defgroup CRC_Exported_Functions_Group3 Peripheral State functions |
| * @{ |
| */ |
| HAL_CRC_StateTypeDef HAL_CRC_GetState(CRC_HandleTypeDef *hcrc); |
| /** |
| * @} |
| */ |
| |
| /** |
| * @} |
| */ |
| |
| /** |
| * @} |
| */ |
| |
| /** |
| * @} |
| */ |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* STM32L0xx_HAL_CRC_H */ |
