76 lines
2.6 KiB
C
76 lines
2.6 KiB
C
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/**
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*****************************************************************************************
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* Copyright(c) 2015, Realtek Semiconductor Corporation. All rights reserved.
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*****************************************************************************************
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* @file crc16btx.h
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* @brief Cyclic Redundancy Check (CRC) Implementation for BTX,
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* Polynomial: X**0 + X**2 + X**15 + X16
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*
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* @author gordon
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* @date 2015-07-13
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* @version v1.0
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* *************************************************************************************
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* @attention
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* <h2><center>© COPYRIGHT 2015 Realtek Semiconductor Corporation</center></h2>
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* *************************************************************************************
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*/
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/*============================================================================*
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* Define to prevent recursive inclusion
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*============================================================================*/
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#if ! defined (__CRC16BTX_H)
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#define __CRC16BTX_H
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/*============================================================================*
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* Header Files
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*============================================================================*/
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#include <stdint.h>
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/** @defgroup CRC_FCS CRC Implementation
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* @brief CRC implementation for specified polynomial
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* @{
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*/
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/*============================================================================*
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* Macro
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*============================================================================*/
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/** @defgroup CRC_FCS_Exported_Macros CRC Implementation Exported Macros
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* @{
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*/
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/** defines and macros */
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#define BTXFCS_INIT 0x0000 /**< Initial FCS value */
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#define BTXFCS_GOOD 0x0000 /**< Good final FCS value */
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/** @} */ /* End of group CRC_FCS_Exported_Macros */
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/*============================================================================*
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* Functions
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*============================================================================*/
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/** @defgroup CRC_FCS_Exported_Functions CRC Implementation Exported Functions
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* @brief
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* @{
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*/
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/**
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* @brief Calculate a new fcs given the current fcs and the new data.
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* Polynomial: X**0 + X**2 + X**15 + X16
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*
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* @param fcs: init or good final
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* @param cp: data point
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* @param len: length
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*
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* @return
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*
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*/
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uint16_t btxfcs(uint16_t fcs,
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uint8_t *cp,
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uint32_t len);
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/** @} */ /* End of group CRC_FCS_Exported_Functions */
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/** @} */ /* End of group CRC_FCS */
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#endif /**< #if ! defined (__CRC16BTX_H) */
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/** End of CRC16BTX.H */
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