--- /dev/null
+/**
+ ******************************************************************************
+ * @file stm32l0xx_hal_crc.h
+ * @author MCD Application Team
+ * @version V1.2.0
+ * @date 06-February-2015
+ * @brief Header file of CRC HAL module.
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>© COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. Neither the name of STMicroelectronics nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ ******************************************************************************
+ */
+
+/* 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
+ * @{
+ */
+
+/** @defgroup CRC CRC
+ * @{
+ */
+
+/* Exported types ------------------------------------------------------------*/
+
+/**
+ * @brief CRC HAL State Structure definition
+ */
+typedef enum
+{
+ HAL_CRC_STATE_RESET = 0x00, /*!< CRC not yet initialized or disabled */
+ HAL_CRC_STATE_READY = 0x01, /*!< CRC initialized and ready for use */
+ HAL_CRC_STATE_BUSY = 0x02, /*!< CRC internal process is ongoing */
+ HAL_CRC_STATE_TIMEOUT = 0x03, /*!< CRC timeout state */
+ HAL_CRC_STATE_ERROR = 0x04 /*!< 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. 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
+ CRC_POLYLENGTH_32B (32-bit CRC)
+ CRC_POLYLENGTH_16B (16-bit CRC)
+ CRC_POLYLENGTH_8B (8-bit CRC)
+ 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
+ CRC_INPUTDATA_INVERSION_NONE no input data inversion
+ CRC_INPUTDATA_INVERSION_BYTE byte-wise inversion, 0x1A2B3C4D becomes 0x58D43CB2
+ CRC_INPUTDATA_INVERSION_HALFWORD halfword-wise inversion, 0x1A2B3C4D becomes 0xD458B23C
+ 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
+ CRC_OUTPUTDATA_INVERSION_DISABLE no CRC inversion, or
+ 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
+ CRC_INPUTDATA_FORMAT_BYTES input data is a stream of bytes (8-bit data)
+ CRC_INPUTDATA_FORMAT_HALFWORDS input data is a stream of half-words (16-bit data)
+ CRC_INPUTDATA_FORMAT_WORDS input data is a stream of words (32-bits 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 0x04C11DB7
+
+/**
+ * @}
+ */
+
+/** @defgroup CRC_Default_InitValue Default CRC computation initialization value
+ * @{
+ */
+#define DEFAULT_CRC_INITVALUE 0xFFFFFFFF
+
+/**
+ * @}
+ */
+
+/** @defgroup CRC_Default_Polynomial Indicates whether or not default polynomial is used
+ * @{
+ */
+#define DEFAULT_POLYNOMIAL_ENABLE ((uint8_t)0x00)
+#define DEFAULT_POLYNOMIAL_DISABLE ((uint8_t)0x01)
+
+#define IS_DEFAULT_POLYNOMIAL(__DEFAULT__) (((__DEFAULT__) == DEFAULT_POLYNOMIAL_ENABLE) || \
+ ((__DEFAULT__) == DEFAULT_POLYNOMIAL_DISABLE))
+
+/**
+ * @}
+ */
+
+/** @defgroup CRC_Default_InitValue_Use Indicates whether or not default init value is used
+ * @{
+ */
+#define DEFAULT_INIT_VALUE_ENABLE ((uint8_t)0x00)
+#define DEFAULT_INIT_VALUE_DISABLE ((uint8_t)0x01)
+
+#define IS_DEFAULT_INIT_VALUE(__VALUE__) (((__VALUE__) == DEFAULT_INIT_VALUE_ENABLE) || \
+ ((__VALUE__) == DEFAULT_INIT_VALUE_DISABLE))
+
+/**
+ * @}
+ */
+
+/** @defgroup CRC_Polynomial_Sizes Polynomial sizes to configure the IP
+ * @{
+ */
+#define CRC_POLYLENGTH_32B ((uint32_t)0x00000000)
+#define CRC_POLYLENGTH_16B ((uint32_t)CRC_CR_POLYSIZE_0)
+#define CRC_POLYLENGTH_8B ((uint32_t)CRC_CR_POLYSIZE_1)
+#define CRC_POLYLENGTH_7B ((uint32_t)CRC_CR_POLYSIZE)
+#define IS_CRC_POL_LENGTH(__LENGTH__) (((__LENGTH__) == CRC_POLYLENGTH_32B) || \
+ ((__LENGTH__) == CRC_POLYLENGTH_16B) || \
+ ((__LENGTH__) == CRC_POLYLENGTH_8B) || \
+ ((__LENGTH__) == CRC_POLYLENGTH_7B))
+/**
+ * @}
+ */
+
+/** @defgroup CRC_Polynomial_Size_Definitions CRC polynomial possible sizes actual definitions
+ * @{
+ */
+#define HAL_CRC_LENGTH_32B 32
+#define HAL_CRC_LENGTH_16B 16
+#define HAL_CRC_LENGTH_8B 8
+#define HAL_CRC_LENGTH_7B 7
+
+/**
+ * @}
+ */
+
+/** @defgroup CRC_Input_Buffer_Format CRC 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 ((uint32_t)0x00000000)
+#define CRC_INPUTDATA_FORMAT_BYTES ((uint32_t)0x00000001)
+#define CRC_INPUTDATA_FORMAT_HALFWORDS ((uint32_t)0x00000002)
+#define CRC_INPUTDATA_FORMAT_WORDS ((uint32_t)0x00000003)
+
+#define IS_CRC_INPUTDATA_FORMAT(__FORMAT__) (((__FORMAT__) == CRC_INPUTDATA_FORMAT_BYTES) || \
+ ((__FORMAT__) == CRC_INPUTDATA_FORMAT_HALFWORDS) || \
+ ((__FORMAT__) == CRC_INPUTDATA_FORMAT_WORDS))
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+/* 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 Stores a 8-bit data in the Independent Data(ID) register.
+ * @param __HANDLE__: CRC handle
+ * @param __VALUE__: 8-bit value to be stored in the ID register
+ * @retval None
+ */
+#define __HAL_CRC_SET_IDR(__HANDLE__, __VALUE__) (MODIFY_REG((__HANDLE__)->Instance->IDR, CRC_IDR_IDR, (__VALUE__))
+
+/**
+ * @brief Returns the 8-bit data stored in the Independent Data(ID) register.
+ * @param __HANDLE__: CRC handle
+ * @retval 8-bit value of the ID register
+ */
+#define __HAL_CRC_GET_IDR(__HANDLE__) (((__HANDLE__)->Instance->IDR) & CRC_IDR_IDR)
+/**
+ * @}
+ */
+
+
+/* Include CRC HAL Extension module */
+#include "stm32l0xx_hal_crc_ex.h"
+
+/* Exported functions --------------------------------------------------------*/
+/** @defgroup CRC_Exported_Functions CRC Exported Functions
+ * @{
+ */
+
+/** @defgroup CRC_Exported_Functions_Group1 Initialization/de-initialization functions
+ * @{
+ */
+/* 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);
+/**
+ * @}
+ */
+
+/* Aliases for inter STM32 series compatibility */
+#define HAL_CRC_Input_Data_Reverse HAL_CRCEx_Input_Data_Reverse
+#define HAL_CRC_Output_Data_Reverse HAL_CRCEx_Output_Data_Reverse
+
+/** @defgroup CRC_Exported_Functions_Group2 Peripheral Control functions
+ * @{
+ */
+/* 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);
+/**
+ * @}
+ */
+
+/** @defgroup CRC_Exported_Functions_Group3 Peripheral State functions
+ * @{
+ */
+/* Peripheral State and Error functions ***************************************/
+HAL_CRC_StateTypeDef HAL_CRC_GetState(CRC_HandleTypeDef *hcrc);
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __STM32L0xx_HAL_CRC_H */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+