m5::utility::CRC16 Class Reference

Base class of the CRC16 calculator. More...

#include <crc.hpp>

Public Member Functions
	CRC16 (const uint16_t init, const uint16_t polynomial, const bool refIn, const bool refOut, const uint16_t xorout)
uint16_t	range (const uint8_t *data, size_t len)
	Calculate the CRC of the specified range.
uint16_t	update (const uint8_t *data, size_t len)
	Stores the CRC of the specified array using the current internal information.
uint16_t	value () const
	CRC value at the time of the call.

Static Public Member Functions
static uint16_t	calculate (const uint8_t *data, size_t len, const uint16_t init, const uint16_t polynomial, const bool refIn, const bool refOut, const uint16_t xorout, bool do_finalize=true)
	Calculate CRC16.

Static Protected Member Functions
static uint16_t	finalize (const uint16_t value, const bool refOut, const uint16_t xorout)

Detailed Description

Base class of the CRC16 calculator.

Constructor & Destructor Documentation

CRC16()

m5::utility::CRC16::CRC16 ( const uint16_t init, const uint16_t polynomial, const bool refIn, const bool refOut, const uint16_t xorout )

inline

Parameters

init	Initial value
polynormal	Generated polynomial
refIn	Inverted input?
refOut	Inverted output?
xorout	Exclusive OR output

Member Function Documentation

calculate()

static uint16_t m5::utility::CRC16::calculate ( const uint8_t * data, size_t len, const uint16_t init, const uint16_t polynomial, const bool refIn, const bool refOut, const uint16_t xorout, bool do_finalize = true )

inlinestatic

Calculate CRC16.

Parameters

data	Pointer of the array
len	Length of the array
polynormal	Generated polynomial
refIn	Inverted input?
refOut	Inverted output?
xorout	Exclusive OR output
do_finalize	Apply processing to output values?(true as defaut)

Returns

CRC value

range()

uint16_t m5::utility::CRC16::range ( const uint8_t * data, size_t len )

inline

Calculate the CRC of the specified range.

Parameters

data	Pointer of the array
len	Length of the array

Returns

CRC value

update()

uint16_t m5::utility::CRC16::update ( const uint8_t * data, size_t len )

inline

Stores the CRC of the specified array using the current internal information.

Parameters

data	Pointer of the array
len	Length of the array

Returns

CRC value

Note

Used when you want to calculate the value of the entire divided continuous data, such as streaming data

value()

uint16_t m5::utility::CRC16::value ( ) const

inline

CRC value at the time of the call.

Returns

CRC value