desloges-libioulle / Mbed 2 deprecated app4_clockless

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Dependencies:   mbed-rtos mbed

crc16.h

Committer:
libv2001
Date:
2017-03-06
Revision:
1:9ba4618df7b5
Parent:
0:fc7bc75ace9b

File content as of revision 1:9ba4618df7b5:

#ifndef CRC_16_H
#define CRC_16_H

#include <stdint.h>

#define DEFAULT_POLYNOME       0x8005
#define DEFAULT_INITIAL_VALUE  0x0000
#define DEFAULT_XOR_OUT_VALUE  0x0000
#define DEFAULT_REVERSE_INPUT  true
#define DEFUALT_REVERSE_OUTPUT true

struct crc_t{
    uint16_t polynome;
    uint16_t registre;
    uint16_t initialValue;
    uint16_t xorOut;
    bool reverseIn;
    bool reverseOut;
};

void initLookup(uint16_t polynome = DEFAULT_POLYNOME);

crc_t initCrc(uint16_t polynome = DEFAULT_POLYNOME,
              uint16_t initialValue = DEFAULT_INITIAL_VALUE,
              uint16_t xorOut = DEFAULT_XOR_OUT_VALUE,
              bool reverseIn = DEFAULT_REVERSE_INPUT,
              bool reverseOut = DEFUALT_REVERSE_OUTPUT);

void resetCrc(crc_t & crc);

void addByteToCrc(crc_t & crc, uint8_t byte);

uint16_t getCrc(crc_t & crc);

#endif