Stm32Base/Core/Src/crc.c

/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file    crc.c
  * @brief   This file provides code for the configuration
  *          of the CRC instances.
  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2025 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.
  *
  ******************************************************************************
  */
#include "stdio.h"
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "crc.h"

/* USER CODE BEGIN 0 */

/* USER CODE END 0 */

CRC_HandleTypeDef hcrc;

/* CRC init function */
void MX_CRC_Init(void)
{

  /* USER CODE BEGIN CRC_Init 0 */

  /* USER CODE END CRC_Init 0 */

  /* USER CODE BEGIN CRC_Init 1 */

  /* USER CODE END CRC_Init 1 */
  hcrc.Instance = CRC;
  hcrc.Init.DefaultPolynomialUse = DEFAULT_POLYNOMIAL_DISABLE;
  hcrc.Init.DefaultInitValueUse = DEFAULT_INIT_VALUE_DISABLE;
  hcrc.Init.GeneratingPolynomial = 32773;
  hcrc.Init.CRCLength = CRC_POLYLENGTH_16B;
  hcrc.Init.InitValue = 0xFFFF;
  hcrc.Init.InputDataInversionMode = CRC_INPUTDATA_INVERSION_BYTE;
  hcrc.Init.OutputDataInversionMode = CRC_OUTPUTDATA_INVERSION_ENABLE;
  hcrc.InputDataFormat = CRC_INPUTDATA_FORMAT_BYTES;
  if (HAL_CRC_Init(&hcrc) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN CRC_Init 2 */

  /* USER CODE END CRC_Init 2 */

}

void HAL_CRC_MspInit(CRC_HandleTypeDef* crcHandle)
{

  if(crcHandle->Instance==CRC)
  {
  /* USER CODE BEGIN CRC_MspInit 0 */

  /* USER CODE END CRC_MspInit 0 */
    /* CRC clock enable */
    __HAL_RCC_CRC_CLK_ENABLE();
  /* USER CODE BEGIN CRC_MspInit 1 */

  /* USER CODE END CRC_MspInit 1 */
  }
}

void HAL_CRC_MspDeInit(CRC_HandleTypeDef* crcHandle)
{

  if(crcHandle->Instance==CRC)
  {
  /* USER CODE BEGIN CRC_MspDeInit 0 */

  /* USER CODE END CRC_MspDeInit 0 */
    /* Peripheral clock disable */
    __HAL_RCC_CRC_CLK_DISABLE();
  /* USER CODE BEGIN CRC_MspDeInit 1 */

  /* USER CODE END CRC_MspDeInit 1 */
  }
}

/* USER CODE BEGIN 1 */
uint16_t mb_crc16(const uint8_t *buf, uint32_t len)
{
	return HAL_CRC_Calculate(&hcrc, (uint32_t*)buf, len);
}
/* USER CODE END 1 */