mirror of
https://github.com/DarkFlippers/unleashed-firmware.git
synced 2024-12-17 10:22:01 +03:00
76 lines
2.3 KiB
C
Executable File
76 lines
2.3 KiB
C
Executable File
|
|
/******************************************************************************
|
|
* \attention
|
|
*
|
|
* <h2><center>© COPYRIGHT 2020 STMicroelectronics</center></h2>
|
|
*
|
|
* Licensed under ST MYLIBERTY SOFTWARE LICENSE AGREEMENT (the "License");
|
|
* You may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at:
|
|
*
|
|
* www.st.com/myliberty
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied,
|
|
* AND SPECIFICALLY DISCLAIMING THE IMPLIED WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*
|
|
******************************************************************************/
|
|
|
|
/*
|
|
* PROJECT: ST25R391x firmware
|
|
* Revision:
|
|
* LANGUAGE: ISO C99
|
|
*/
|
|
|
|
/*! \file rfal_crc.h
|
|
*
|
|
* \author Ulrich Herrmann
|
|
*
|
|
* \brief CRC calculation module
|
|
*
|
|
*/
|
|
/*!
|
|
*
|
|
*/
|
|
|
|
#ifndef RFAL_CRC_H_
|
|
#define RFAL_CRC_H_
|
|
|
|
/*
|
|
******************************************************************************
|
|
* INCLUDES
|
|
******************************************************************************
|
|
*/
|
|
#include "platform.h"
|
|
|
|
/*
|
|
******************************************************************************
|
|
* GLOBAL FUNCTION PROTOTYPES
|
|
******************************************************************************
|
|
*/
|
|
/*!
|
|
*****************************************************************************
|
|
* \brief Calculate CRC according to CCITT standard.
|
|
*
|
|
* This function takes \a length bytes from \a buf and calculates the CRC
|
|
* for this data. The result is returned.
|
|
* \note This implementation calculates the CRC with LSB first, i.e. all
|
|
* bytes are "read" from right to left.
|
|
*
|
|
* \param[in] preloadValue : Initial value of CRC calculation.
|
|
* \param[in] buf : buffer to calculate the CRC for.
|
|
* \param[in] length : size of the buffer.
|
|
*
|
|
* \return 16 bit long crc value.
|
|
*
|
|
*****************************************************************************
|
|
*/
|
|
extern uint16_t rfalCrcCalculateCcitt(uint16_t preloadValue, const uint8_t* buf, uint16_t length);
|
|
|
|
#endif /* RFAL_CRC_H_ */
|
|
|