61 lines
1.1 KiB
C
61 lines
1.1 KiB
C
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//-------------------------------------------------------------------------------
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// File Name: crc16.h
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// Brief:
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// Version: 1.0.0
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// Create Date: 2017/05/08
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// Create by: Marshal Lee
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// Copyright:
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// Copyright (c) 2017, Richpeace Co., LTD.
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// All rights reserved.
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//
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// Modify by: Marshal Lee
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// Modify Date: 2017/05/08
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//-------------------------------------------------------------------------------
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#ifndef __CRC16_H__
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#define __CRC16_H__
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/*
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CRC16 算法模块
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提供查表法和移位法两种 CRC16 算法
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*/
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#include "typedef.h"
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#define USE_CRC_TABLE // 用查表法crc, 否则, 用移位法计算
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#define SHIFT_RIGHT // 右移位
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#ifdef USE_CRC_TABLE
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#define CRC_INIT 0x0000 // 并且crc初值为0
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#else
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#ifdef SHIFT_RIGHT // 如果是右移
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#define CRC_INIT 0xFFFF // crc初值为0xFFFF
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#else // 如果是左移
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#define CRC_INIT 0x0000 // 并且crc初值为0
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#endif // #ifdef SHIFT_RIGHT
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#endif
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u16 calcCrc16(u8 * pBuf, int lenBuf);
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u8 calcCheckSum8(u8 * pBuf, int lenBuf);
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u32 calcCheckSum32(u8 * pBuf, int lenBuf);
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#endif
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