CRC Standards

crc-5:

Width 5
Poly 0x5
Reflect In True
XOR In 0x1f
Reflect Out True
XOR Out 0x1f

crc-8:

Width 8
Poly 0x07
Reflect In False
XOR In 0x00
Reflect Out False
XOR Out 0x00

dallas-1-wire:

Width 8
Poly 0x31
Reflect In True
XOR In 0x00
Reflect Out True
XOR Out 0x00

crc-15:

Width 15
Poly 0x4599
Reflect In False
XOR In 0x000
Reflect Out False
XOR Out 0x000

crc-16:

Width 16
Poly 0x8005
Reflect In True
XOR In 0x0000
Reflect Out True
XOR Out 0x0000

crc-16-usb:

Width 16
Poly 0x8005
Reflect In True
XOR In 0xffff
Reflect Out True
XOR Out 0xffff

crc-16-modbus:

Width 16
Poly 0x8005
Reflect In True
XOR In 0xffff
Reflect Out True
XOR Out 0x0000

ccitt:

Width 16
Poly 0x1021
Reflect In False
XOR In 0xffff
Reflect Out False
XOR Out 0x0000

r-crc-16:

Width 16
Poly 0x0589
Reflect In False
XOR In 0x0000
Reflect Out False
XOR Out 0x0001

kermit:

Width 16
Poly 0x1021
Reflect In True
XOR In 0x0000
Reflect Out True
XOR Out 0x0000

x-25:

Width 16
Poly 0x1021
Reflect In True
XOR In 0xffff
Reflect Out True
XOR Out 0xffff

xmodem:

Width 16
Poly 0x1021
Reflect In False
XOR In 0x0000
Reflect Out False
XOR Out 0x0000

zmodem:

Width 16
Poly 0x1021
Reflect In False
XOR In 0x0000
Reflect Out False
XOR Out 0x0000

crc-24:

Width 24
Poly 0x864cfb
Reflect In False
XOR In 0xb704ce
Reflect Out False
XOR Out 0x000000

crc-32:

Width 32
Poly 0x04c11db7
Reflect In True
XOR In 0xffffffff
Reflect Out True
XOR Out 0xffffffff

crc-32c:

Width 32
Poly 0x1edc6f41
Reflect In True
XOR In 0xffffffff
Reflect Out True
XOR Out 0xffffffff
Short command pycrc.py --model crc-32c

crc-32-mpeg:

Width 32
Poly 0x04c11db7
Reflect In False
XOR In 0xffffffff
Reflect Out False
XOR Out 0x00000000

posix:

Width 32
Poly 0x04c11db7
Reflect In False
XOR In 0x00000000
Reflect Out False
XOR Out 0xffffffff
Short command pycrc.py --model posix

jam:

Width 32
Poly 0x04c11db7
Reflect In True
XOR In 0xffffffff
Reflect Out True
XOR Out 0x00000000

xfer:

Width 32
Poly 0x000000af
Reflect In False
XOR In 0x00000000
Reflect Out False
XOR Out 0x00000000

crc-64:

Width 64
Poly 0x000000000000001b
Reflect In True
XOR In 0x0000000000000000
Reflect Out True
XOR Out 0x0000000000000000

crc-64-jones:

Width 64
Poly 0xad93d23594c935a9
Reflect In True
XOR In 0xffffffffffffffff
Reflect Out True
XOR Out 0x0000000000000000