stm32l4xx_hal_crc.c File Reference

CRC HAL module driver. This file provides firmware functions to manage the following functionalities of the Cyclic Redundancy Check (CRC) peripheral: + Initialization and de-initialization functions + Peripheral Control functions + Peripheral State functions. More...

#include "stm32l4xx_hal.h"

Go to the source code of this file.

Functions
static uint32_t	CRC_Handle_8 (CRC_HandleTypeDef *hcrc, uint8_t pBuffer[], uint32_t BufferLength)
	Enter 8-bit input data to the CRC calculator.
static uint32_t	CRC_Handle_16 (CRC_HandleTypeDef *hcrc, uint16_t pBuffer[], uint32_t BufferLength)
	Enter 16-bit input data to the CRC calculator.
HAL_StatusTypeDef	HAL_CRC_Init (CRC_HandleTypeDef *hcrc)
	Initialize the CRC according to the specified parameters in the CRC_InitTypeDef and create the associated handle.
HAL_StatusTypeDef	HAL_CRC_DeInit (CRC_HandleTypeDef *hcrc)
	DeInitialize the CRC peripheral.
__weak void	HAL_CRC_MspInit (CRC_HandleTypeDef *hcrc)
	Initializes the CRC MSP.
__weak void	HAL_CRC_MspDeInit (CRC_HandleTypeDef *hcrc)
	DeInitialize the CRC MSP.
uint32_t	HAL_CRC_Accumulate (CRC_HandleTypeDef *hcrc, uint32_t pBuffer[], uint32_t BufferLength)
	Compute the 7, 8, 16 or 32-bit CRC value of an 8, 16 or 32-bit data buffer starting with the previously computed CRC as initialization value.
uint32_t	HAL_CRC_Calculate (CRC_HandleTypeDef *hcrc, uint32_t pBuffer[], uint32_t BufferLength)
	Compute the 7, 8, 16 or 32-bit CRC value of an 8, 16 or 32-bit data buffer starting with hcrc->Instance->INIT as initialization value.
HAL_CRC_StateTypeDef	HAL_CRC_GetState (CRC_HandleTypeDef *hcrc)
	Return the CRC handle state.

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Detailed Description

CRC HAL module driver. This file provides firmware functions to manage the following functionalities of the Cyclic Redundancy Check (CRC) peripheral: + Initialization and de-initialization functions + Peripheral Control functions + Peripheral State functions.

Author:

MCD Application Team

Attention:

Copyright (c) 2017 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.

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                     ##### How to use this driver #####
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    [..]
         (+) Enable CRC AHB clock using __HAL_RCC_CRC_CLK_ENABLE();
         (+) Initialize CRC calculator
             (++) specify generating polynomial (peripheral default or non-default one)
             (++) specify initialization value (peripheral default or non-default one)
             (++) specify input data format
             (++) specify input or output data inversion mode if any
         (+) Use HAL_CRC_Accumulate() function to compute the CRC value of the
             input data buffer starting with the previously computed CRC as
             initialization value
         (+) Use HAL_CRC_Calculate() function to compute the CRC value of the
             input data buffer starting with the defined initialization value
             (default or non-default) to initiate CRC calculation

  

Definition in file stm32l4xx_hal_crc.c.