pcrc.c File Reference

PLC PRIME CRC calculation service.

Copyright (c) 2014-2018 Microchip Technology Inc. and its subsidiaries.

#include "asf.h"
#include "string.h"

Macros
#define	SNA_SIZE   6

Functions
static uint16_t	_eval_crc_16 (const uint8_t *puc_buf_ptr, uint32_t ul_len, uint32_t ul_crc_init)
	This function calculates the CRC16 of the input data. More...
static uint32_t	_eval_crc_32 (const uint8_t *puc_buf_ptr, uint32_t ul_len, uint32_t ul_crc_init)
	This function calculates the CRC32 of the input data. More...
static uint8_t	_eval_crc_8 (const uint8_t *puc_buf_ptr, uint32_t ul_len, uint32_t ul_crc_init)
	This function calculates the CRC8 of the input data. More...
static uint8_t	_eval_crc_8_usi (const uint8_t *puc_buf_ptr, uint32_t ul_len, uint32_t ul_crc_init)
	This function calculates the CRC8 of the input data for USI. More...
uint32_t	pcrc_calculate_prime_crc (uint8_t *puc_buf, uint32_t ul_len, uint8_t uc_header_type, uint8_t uc_crc_type)
	Calculates the CRC of the input buffer according to the PRIME spec. More...
void	pcrc_configure_sna (uint8_t *puc_sna)
	Through this function, the SNA is configured for the PCRC service. More...

Variables
static const uint8_t	puc_crc8_table [256]
static uint8_t	puc_SNA [SNA_SIZE] = {0, 0, 0, 0, 0, 0}
static const uint32_t	pul_crc32_table [256]
static const uint16_t	pus_crc16_table [256]
static uint8_t	uc_SNA_crc_8 = 0
static uint32_t	ul_SNA_crc_32 = 0