CRC-16 polinominal 0x1021

Please help me.

I want calculate CRC16 for bytes string. C++ algorithm for calculate CRC16:

Code:

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word CRC16(word crc, byte *buf, word len)

{
  word bits, k;
  word accumulator, temp;
  for( k = 0; k<len; k++ )
  {
    accumulator = 0;
    temp = (crc>>8)<<8;
    for( bits = 0; bits < 8; bits++ )
    {
      if( (temp ^ accumulator) & 0x8000 )
          accumulator = (accumulator << 1) ^ 0x1021;
      else
          accumulator <<= 1;
      temp <<= 1;
    }
    crc = accumulator^(crc<<8)^(buf[k]&0xff);
  }
  return crc;
}

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I transform into Java:

Code:

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package getbit;

import java.io.UnsupportedEncodingException;

public class CRC16MassaK {

    public static void main(String[] args) throws UnsupportedEncodingException {

        int crc = 0xFFFF;          // initial value
        int polynomial = 0x1021;  // 0001 0000 0010 0001  (0, 5, 12)
        int bits;
        int accumulator, temp;

        byte[] bytes = {(byte) 0xF8, (byte) 0x55, (byte) 0xCE, 0x05, 0x00, (byte) 0x81, 0x01, 0x00, 0x00, 0x00};

        {
            for (byte b : bytes) {
                accumulator = 0;
                temp = (crc >> 8) << 8;
                for (bits = 0; bits < 8; bits++) {
                    if (((temp ^ accumulator) & 0x8000) == 0x8000)
                        accumulator = (accumulator << 1) ^ polynomial;
                    else
                        accumulator <<= 1;
                    temp <<= 1;
                }
                crc = accumulator ^ (crc << 8) ^ (b & 0xFF);
            }

            System.out.println("CRC16 MassaK = " + Integer.toHexString(crc));
        }
    }
}

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I send bytes string:

Code:

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byte[] bytes = {(byte) 0xF8, (byte) 0x55, (byte) 0xCE, 0x05, 0x00, (byte) 0x81, 0x01, 0x00, 0x00, 0x00};

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And want get two bytes of CRC16:

Code:

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0x5B, 0x3F

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But my Java method return four bytes:

Code:

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0xef, 0xe1, 0x03, 0xc1

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Hi,

I am also facing same problem. Have you find solution for this? If yes, then please let me know..