CRC HAL module driver. This file provides firmware functions to manage the following functionalities of the Cyclic Redundancy Check (CRC) peripheral: More...

#include "stm32f4xx_hal.h"

Include dependency graph for stm32f4xx_hal_crc.c:

Functions
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.

void	HAL_CRC_MspInit (CRC_HandleTypeDef *hcrc)
	Initializes the CRC MSP.

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 32-bit CRC value of a 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 32-bit CRC value of a 32-bit data buffer starting with hcrc->Instance->INIT as initialization value.

HAL_CRC_StateTypeDef	HAL_CRC_GetState (const CRC_HandleTypeDef *hcrc)
	Return the CRC handle state.

Detailed Description

CRC HAL module driver. This file provides firmware functions to manage the following functionalities of the Cyclic Redundancy Check (CRC) peripheral:

Author

MCD Application Team

Initialization and de-initialization functions
Peripheral Control functions
Peripheral State functions

Attention

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.

===============================================================================
                    ##### How to use this driver #####
===============================================================================
   [..]
        (+) 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 stm32f4xx_hal_crc.c.

Functions

Detailed Description