Package com.dalsemi.onewire.utils
Class CRC16
java.lang.Object
com.dalsemi.onewire.utils.CRC16
CRC16 is a class containing an implementation of the CyclicRedundencyCheck
(CRC) CRC16. The CRC16 is used in iButton memory packet structure.
CRC16 is based on the polynomial = X^16 + X^15 + X^2 + 1.

Method Summary
Modifier and TypeMethodDescriptionstatic int
compute
(byte[] dataToCrc) Perform the CRC16 on an array of data elements based on a zero seed.static int
compute
(byte[] dataToCrc, int seed) Perform the CRC16 on an array of data elements based on the provided seed.static int
compute
(byte[] dataToCrc, int off, int len) Perform the CRC16 on an array of data elements based on a zero seed.static int
compute
(byte[] dataToCrc, int off, int len, int seed) Perform the CRC16 on an array of data elements based on the provided seed.static int
compute
(int dataToCrc) Perform the CRC16 on the data element based on a zero seed.static int
compute
(int dataToCrc, int seed) Perform the CRC16 on the data element based on the provided seed.

Method Details

compute
public static int compute(int dataToCrc) Perform the CRC16 on the data element based on a zero seed.CRC16 is based on the polynomial = X^16 + X^15 + X^2 + 1.
 Parameters:
dataToCrc
 data element on which to perform the CRC16 Returns:
 CRC16 value

compute
public static int compute(int dataToCrc, int seed) Perform the CRC16 on the data element based on the provided seed.CRC16 is based on the polynomial = X^16 + X^15 + X^2 + 1.
 Parameters:
dataToCrc
 data element on which to perform the CRC16 Returns:
 CRC16 value

compute
public static int compute(byte[] dataToCrc) Perform the CRC16 on an array of data elements based on a zero seed.CRC16 is based on the polynomial = X^16 + X^15 + X^2 + 1.
 Parameters:
dataToCrc
 array of data elements on which to perform the CRC16 Returns:
 CRC16 value

compute
public static int compute(byte[] dataToCrc, int off, int len) Perform the CRC16 on an array of data elements based on a zero seed.CRC16 is based on the polynomial = X^16 + X^15 + X^2 + 1.
 Parameters:
dataToCrc
 array of data elements on which to perform the CRC16off
 offset into the data arraylen
 length of data to CRC16 Returns:
 CRC16 value

compute
public static int compute(byte[] dataToCrc, int off, int len, int seed) Perform the CRC16 on an array of data elements based on the provided seed.CRC16 is based on the polynomial = X^16 + X^15 + X^2 + 1.
 Parameters:
dataToCrc
 array of data elements on which to perform the CRC16off
 offset into the data arraylen
 length of data to CRC16seed
 seed to use for CRC16 Returns:
 CRC16 value

compute
public static int compute(byte[] dataToCrc, int seed) Perform the CRC16 on an array of data elements based on the provided seed.CRC16 is based on the polynomial = X^16 + X^15 + X^2 + 1.
 Parameters:
dataToCrc
 array of data elements on which to perform the CRC16seed
 seed to use for CRC16 Returns:
 CRC16 value
