Module lettuce.core

Package io.lettuce.core.codec

Class CRC16

java.lang.Object

io.lettuce.core.codec.CRC16

public class CRC16
extends Object

Since:

3.0

Author:

Mark Paluch

• Name: XMODEM (also known as ZMODEM or CRC-16/ACORN)
• Width: 16 bit
• Poly: 1021-2020 (That is actually x16 + x12 + x5 + 1)
• Initialization: 0000
• Reflect Input byte: False
• Reflect Output CRC: False
• Xor constant to output CRC: 0000

Method Summary

Modifier and Type	Method	Description
static int	crc16(byte[] bytes)	Create a CRC16 checksum from the bytes.
static int	crc16(byte[] bytes, int off, int len)	Create a CRC16 checksum from the bytes.
static int	crc16(ByteBuffer bytes)	Create a CRC16 checksum from the bytes.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

crc16

public static int crc16(byte[] bytes)

Create a CRC16 checksum from the bytes.

Parameters:

bytes - input bytes

Returns:

CRC16 as integer value

crc16

public static int crc16(byte[] bytes,
int off,
int len)

Create a CRC16 checksum from the bytes.

Parameters:

bytes - input bytes

Returns:

CRC16 as integer value

crc16

public static int crc16(ByteBuffer bytes)

Create a CRC16 checksum from the bytes.

Parameters:

bytes - input bytes

Returns:

CRC16 as integer value

Since:

4.4