crc v0.4.0 CRC

This module is used to calculate CRC (Cyclic Redundancy Check) values for binary data. It uses NIF functions written in C to interate over the given binary calculating the CRC checksum value.

Summary

Functions

ccitt_16(arg, seed \\ 65535)

Calculates a 16-bit CCITT CRC with the given seed, seed defaults to 0xFFFF if one is not given

ccitt_16_1D0F(arg)

Calculates a 16-bit CCITT 0x1D0F CRC

ccitt_16_xmodem(arg)

Calculates a 16-bit CCITT XMODEM CRC

checksum_xor(arg)

crc_16(arg)

Calculates a CRC16 checksum for the provided binary

crc_16_modbus(arg)

init()

Initilizes the module by loading NIFs

Functions

ccitt_16(arg, seed \\ 65535)

Specs

ccitt_16(binary, number) :: number

Calculates a 16-bit CCITT CRC with the given seed, seed defaults to 0xFFFF if one is not given

ccitt_16_1D0F(arg)

Specs

ccitt_16_1D0F(binary) :: number

Calculates a 16-bit CCITT 0x1D0F CRC

ccitt_16_xmodem(arg)

Specs

ccitt_16_xmodem(binary) :: number

Calculates a 16-bit CCITT XMODEM CRC

checksum_xor(arg)

Specs

checksum_xor(binary) :: number

crc_16(arg)

Specs

crc_16(binary) :: number

Calculates a CRC16 checksum for the provided binary

crc_16_modbus(arg)

Specs

crc_16_modbus(binary) :: number

init()

Initilizes the module by loading NIFs