org.lsst.ccs.drivers.modbus

Class CRC16

java.lang.Object

org.lsst.ccs.drivers.modbus.CRC16

public class CRC16
extends Object

Routines for generating 16-bit cyclic redundancy checksums

Author:

Owen Saxton

Constructor Summary

Constructors

Constructor and Description
CRC16(int poly) Constructor

Method Summary

Methods

Modifier and Type	Method and Description
int	generate(byte[] data) Generates the custom CRC for some data
void	generate(byte[] data, byte[] output, int outoff)
int	generate(byte[] data, int offset, int length)
void	generate(byte[] data, int offset, int length, byte[] output, int outoff)
static int	generateStd(byte[] data) Generates the standard CRC for some data
static void	generateStd(byte[] data, byte[] output, int outoff)
static int	generateStd(byte[] data, int offset, int length)
static void	generateStd(byte[] data, int offset, int length, byte[] output, int outoff)
static void	main(String[] args) Test program

Methods inherited from class java.lang.Object

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

Constructor Detail

CRC16

public CRC16(int poly)

Constructor

Method Detail

generate

public int generate(byte[] data)

Generates the custom CRC for some data

generate

public int generate(byte[] data,
           int offset,
           int length)

generate

public void generate(byte[] data,
            byte[] output,
            int outoff)

generate

public void generate(byte[] data,
            int offset,
            int length,
            byte[] output,
            int outoff)

generateStd

public static int generateStd(byte[] data)

Generates the standard CRC for some data

generateStd

public static int generateStd(byte[] data,
              int offset,
              int length)

generateStd

public static void generateStd(byte[] data,
               byte[] output,
               int outoff)

generateStd

public static void generateStd(byte[] data,
               int offset,
               int length,
               byte[] output,
               int outoff)

main

public static void main(String[] args)

Test program