SCI: CRC8

SCI CRC8 (Cyclic Redundancy Check) More...

Collaboration diagram for SCI: CRC8:

Functions
void	SCI_CRC8_Init (void)
	Initialization of the CRC8 module. More...
uint8_t	SCI_CRC8_Compute (uint8_t crc, const uint8_t *data, size_t length)
	Calculation routine for the CRC8 checksum. More...

Detailed Description

SCI CRC8 (Cyclic Redundancy Check)

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CRC8 checksum calculation with an optimized algorithm that utilizes an look-up table and proceeds a whole byte at each step.

See also

http://www.sunshine2k.de/articles/coding/crc/understanding_crc.html

Function Documentation

SCI_CRC8_Compute()

uint8_t SCI_CRC8_Compute	(	uint8_t	crc,
		const uint8_t *	data,
		size_t	length
	)

Calculation routine for the CRC8 checksum.

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Uses an optimized algorithm that utilizes an look-up table with 256 entries of 8-bit values (total: 256 bytes) and proceeds a whole byte at each step.

See also

http://www.sunshine2k.de/articles/coding/crc/understanding_crc.html

Parameters

crc	The previous CRC8. If starting, pass zero.
data	Pointer to the send or receive array.
length	Number of bytes in the frame array.

Returns

Returns the CRC8 checksum.

SCI_CRC8_Init()

void SCI_CRC8_Init

(

void

)

Initialization of the CRC8 module.

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Prepares the CRC8 lookup table.