CRC16

16-bit CRC More...

Collaboration diagram for CRC16:

Data Structures
struct	crc16_data_t
	State information for the CRC16 algorithm. More...

CRC16
void	crc16_init (crc16_data_t *crc16Config)
	Initializes the parameters of the crc function, must be called first. More...
void	crc16_update (crc16_data_t *crc16Config, const uint8_t *src, uint32_t lengthInBytes)
	A "running" crc calculator that updates the crc value after each call. More...
void	crc16_finalize (crc16_data_t *crc16Config, uint16_t *hash)
	Calculates the final crc value, padding with zeros if necessary, must be called last. More...

Usage Information

16-bit CRC

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Data Structure Documentation

struct crc16_data_t

State information for the CRC16 algorithm.

Data Fields
uint16_t	currentCrc	Current CRC value.

Function Documentation

void crc16_finalize	(	crc16_data_t *	crc16Config,
		uint16_t *	hash
	)

Calculates the final crc value, padding with zeros if necessary, must be called last.

Parameters

crc16Config	Instantiation of the data structure of type crc16_data_t.
hash	Pointer to the value returned for the final calculated crc value.

void crc16_init

(

crc16_data_t *

crc16Config

)

Initializes the parameters of the crc function, must be called first.

Parameters

crc16Config

Instantiation of the data structure of type crc16_data_t.

void crc16_update	(	crc16_data_t *	crc16Config,
		const uint8_t *	src,
		uint32_t	lengthInBytes
	)

A "running" crc calculator that updates the crc value after each call.

Parameters

crc16Config	Instantiation of the data structure of type crc16_data_t.
src	Pointer to the source buffer of data.
lengthInBytes	The length, given in bytes (not words or long-words).

Note: We must init CRC module here, As we may seperate one crc calculation into several times Note: It is better to use lock to ensure the integrity of current updating operation of crc calculation