Crate crc_0x8810

compute crcs using the ccitt polynomial efficiently without tables

P(x) = x16 + x12 + x**5 + 1

MSB polynomial: 0x8810 MSB polynomial (with explicit 1): 0x1021

https://users.ece.cmu.edu/~koopman/crc/c16/0x8810.txt

The method used is described in a few places:

• Greg Cook provides some commented 6502 asm
• Jon Buller describes how to determine it through automated symbolic calculation and provides some 8051 asm
• adapted by others into C
• the same method is used in avr-libc’s _crc_ccitt_update function.

Structs

Algorithm

Digest

A crc crate like Digest api

Constants

CRC_16_AUTOSAR

Alias of CRC_16_IBM_3740

CRC_16_CCITT

Alias of CRC_16_KERMIT

CRC_16_GENIBUS

CRC-16/GENIBUS

CRC_16_GSM

CRC-16/GSM

CRC_16_IBM_3740

CRC-16/IBM-3740

CRC_16_IBM_SDLC

CRC-16/IBM-SDLC

CRC_16_ISO_HDLC

Alias of CRC_16_IBM_SDLC

CRC_16_ISO_IEC_14443_3_A

CRC-16/ISO-IEC-14443-3-A

CRC_16_ISO_IEC_14443_3_B

Alias of CRC_16_IBM_SDLC

CRC_16_KERMIT

CRC-16/KERMIT

CRC_16_LORA

Alias of CRC_16_XMODEM

CRC_16_XMODEM

CRC-16/XMODEM

CRC_16_X_25

Alias of CRC_16_IBM_SDLC

Functions

update

The lowest level operation, applies a single byte of data to a given crc and returns the new crc