Functions

General Description

Functions
__STATIC_INLINE cy_en_crypto_status_t	Cy_Crypto_Core_Crc_Init (CRYPTO_Type *base, uint32_t polynomial, uint32_t dataReverse, uint32_t dataXor, uint32_t remReverse, uint32_t remXor)
	Initializes the CRC calculation. More...
__STATIC_INLINE cy_en_crypto_status_t	Cy_Crypto_Core_Crc (CRYPTO_Type *base, uint32_t *crc, void const *data, uint32_t dataSize, uint32_t lfsrInitState)
	Performs the CRC calculation on a message. More...
__STATIC_INLINE cy_en_crypto_status_t	Cy_Crypto_Core_Crc_CalcInit (CRYPTO_Type *base, uint32_t width, uint32_t polynomial, uint32_t dataReverse, uint32_t dataXor, uint32_t remReverse, uint32_t remXor, uint32_t lfsrInitState)
	Initializes the CRC calculation. More...
__STATIC_INLINE cy_en_crypto_status_t	Cy_Crypto_Core_Crc_CalcStart (CRYPTO_Type *base, uint32_t width, uint32_t lfsrInitState)
	Prepares the CRC calculation by setting an initial seed value. More...
__STATIC_INLINE cy_en_crypto_status_t	Cy_Crypto_Core_Crc_CalcPartial (CRYPTO_Type *base, void const *data, uint32_t dataSize)
	Performs the CRC calculation of a message part. More...
__STATIC_INLINE cy_en_crypto_status_t	Cy_Crypto_Core_Crc_CalcFinish (CRYPTO_Type *base, uint32_t width, uint32_t *crc)
	Finalizes the CRC calculation. More...
__STATIC_INLINE cy_en_crypto_status_t	Cy_Crypto_Core_Crc_Calc (CRYPTO_Type *base, uint32_t width, uint32_t *crc, void const *data, uint32_t dataSize)
	Performs the CRC calculation on a message. More...

Function Documentation

Cy_Crypto_Core_Crc_Init()

__STATIC_INLINE cy_en_crypto_status_t Cy_Crypto_Core_Crc_Init	(	CRYPTO_Type *	base,
		uint32_t	polynomial,
		uint32_t	dataReverse,
		uint32_t	dataXor,
		uint32_t	remReverse,
		uint32_t	remXor
	)

Initializes the CRC calculation.

Parameters

base	The pointer to the CRYPTO instance.
polynomial	The polynomial (specified using 32 bits) used in the computing CRC.
dataReverse	The order in which data bytes are processed. 0 - MSB first; 1- LSB first.
dataXor	The byte mask for XORing data.
remReverse	A remainder reverse: 0 means the remainder is not reversed. 1 means reversed.
remXor	Specifies the mask with which the LFSR32 register is XORed to produce a remainder.

Returns

cy_en_crypto_status_t

Cy_Crypto_Core_Crc()

__STATIC_INLINE cy_en_crypto_status_t Cy_Crypto_Core_Crc	(	CRYPTO_Type *	base,
		uint32_t *	crc,
		void const *	data,
		uint32_t	dataSize,
		uint32_t	lfsrInitState
	)

Performs the CRC calculation on a message.

Parameters

base	The pointer to the CRYPTO instance.
crc	The pointer to a computed CRC value. Must be 4-byte aligned.
data	The pointer to the message whose CRC is being computed.
dataSize	The size of a message in bytes.
lfsrInitState	The initial state of the LFSR.

Returns

cy_en_crypto_status_t

Cy_Crypto_Core_Crc_CalcInit()

__STATIC_INLINE cy_en_crypto_status_t Cy_Crypto_Core_Crc_CalcInit	(	CRYPTO_Type *	base,
		uint32_t	width,
		uint32_t	polynomial,
		uint32_t	dataReverse,
		uint32_t	dataXor,
		uint32_t	remReverse,
		uint32_t	remXor,
		uint32_t	lfsrInitState
	)

Initializes the CRC calculation.

Parameters

base	The pointer to the CRYPTO instance.
width	The CRC width in bits.
polynomial	The polynomial (specified using 32 bits) used in the computing CRC.
dataReverse	The order in which data bytes are processed. 0 - MSB first; 1 - LSB first.
dataXor	The byte mask for XORing data
remReverse	A remainder reverse: 0 means the remainder is not reversed. 1 means reversed.
remXor	Specifies the mask with which the LFSR32 register is XORed to produce a remainder.
lfsrInitState	The initial state of the LFSR.

Returns

cy_en_crypto_status_t

Cy_Crypto_Core_Crc_CalcStart()

__STATIC_INLINE cy_en_crypto_status_t Cy_Crypto_Core_Crc_CalcStart	(	CRYPTO_Type *	base,
		uint32_t	width,
		uint32_t	lfsrInitState
	)

Prepares the CRC calculation by setting an initial seed value.

Parameters

base	The pointer to the CRYPTO instance.
width	The CRC width in bits.
lfsrInitState	The initial state of the LFSR.

Returns

cy_en_crypto_status_t

Cy_Crypto_Core_Crc_CalcPartial()

__STATIC_INLINE cy_en_crypto_status_t Cy_Crypto_Core_Crc_CalcPartial	(	CRYPTO_Type *	base,
		void const *	data,
		uint32_t	dataSize
	)

Performs the CRC calculation of a message part.

Parameters

base	The pointer to the CRYPTO instance.
data	The pointer to the message whose CRC is being computed.
dataSize	The size of a message in bytes.

Returns

cy_en_crypto_status_t

Cy_Crypto_Core_Crc_CalcFinish()

__STATIC_INLINE cy_en_crypto_status_t Cy_Crypto_Core_Crc_CalcFinish	(	CRYPTO_Type *	base,
		uint32_t	width,
		uint32_t *	crc
	)

Finalizes the CRC calculation.

Parameters

base	The pointer to the CRYPTO instance.
width	The CRC width in bits.
crc	The pointer to a computed CRC value. Must be 4-byte aligned.

Returns

cy_en_crypto_status_t

Cy_Crypto_Core_Crc_Calc()

__STATIC_INLINE cy_en_crypto_status_t Cy_Crypto_Core_Crc_Calc	(	CRYPTO_Type *	base,
		uint32_t	width,
		uint32_t *	crc,
		void const *	data,
		uint32_t	dataSize
	)

Performs the CRC calculation on a message.

Parameters

base	The pointer to the CRYPTO instance.
width	The CRC width in bits.
crc	The pointer to a computed CRC value. Must be 4-byte aligned.
data	The pointer to the message whose CRC is being computed.
dataSize	The size of a message in bytes.

Returns

cy_en_crypto_status_t