Zoltan Hudak / CRC16_CCITT

Implementation of CRC16-CCITT using polynomial 0x1021 = x^16 + x^12 + x^5 + 1

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CRC16_CCITT.h

00001 /*
00002  * This is a fork of the CRC16 library COPYRIGHT(c) Emilie Laverge
00003  * published at [https://developer.mbed.org/users/EmLa/code/CRC16/]
00004  *
00005  * Modified by Zoltan Hudak to implement CRC16-CCITT
00006  * using the polynomial 0x1021: X^16 + X^15 + X^2 + 1.
00007  * Default initial CRC value = 0x0000
00008  */
00009 
00010 #ifndef CRC16_CCITT_H
00011 #define CRC16_CCITT_H
00012 
00013 class   CRC16_CCITT
00014 {
00015 private:
00016     static const unsigned int   SHIFTER;
00017     static const unsigned short TABLE[];
00018 public:
00019     CRC16_CCITT(void){};
00020     ~CRC16_CCITT(void){};
00021     unsigned short calc(char input[], int length, unsigned short crc = 0x0000);
00022 };
00023 
00024 #endif // CRC16_CCITT_H
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