This module implements CRC-16-CCITT (polynomial 0x1021) with 0xFFFF initial value. The data can be passed in multiple blocks. More...

Functions
uint16_t	crc16_compute (uint8_t const *p_data, uint32_t size, uint16_t const *p_crc)
	Function for calculating CRC-16 in blocks. More...
uint32_t	crc32_compute (uint8_t const *p_data, uint32_t size, uint32_t const *p_crc)
	Function for calculating CRC-32 in blocks. More...

Detailed Description

This module implements CRC-16-CCITT (polynomial 0x1021) with 0xFFFF initial value. The data can be passed in multiple blocks.

This module implements the CRC-32 calculation in the blocks.

Function Documentation

uint16_t crc16_compute	(	uint8_t const *	p_data ,
		uint32_t	size ,
		uint16_t const *	p_crc
	)

Function for calculating CRC-16 in blocks.

Feed each consecutive data block into this function, along with the current value of p_crc as returned by the previous call of this function. The first call of this function should pass NULL as the initial value of the crc in p_crc.

Parameters

[in]	p_data	The input data block for computation.
[in]	size	The size of the input data block in bytes.
[in]	p_crc	The previous calculated CRC-16 value or NULL if first call.

Returns

The updated CRC-16 value, based on the input supplied.

uint32_t crc32_compute	(	uint8_t const *	p_data ,
		uint32_t	size ,
		uint32_t const *	p_crc
	)

Function for calculating CRC-32 in blocks.

Feed each consecutive data block into this function, along with the current value of p_crc as returned by the previous call of this function. The first call of this function should pass NULL as the initial value of the crc in p_crc.

Parameters

[in]	p_data	The input data block for computation.
[in]	size	The size of the input data block in bytes.
[in]	p_crc	The previous calculated CRC-32 value or NULL if first call.

Returns

The updated CRC-32 value, based on the input supplied.