Java串口通讯指令CRC16校验码生成

uint16_t CRC16_Table(uint8_t pcrc, uint16_t count)
{
uint16_t crc16 = 0;
uint8_t crcregister;
for( ; count > 0; count–){
crcregister = (uint16_t)crc16 >> 8;
crc16 <<= 8;
crc16 ^= CRC16Table[crcregister ^ pcrc];
pcrc++;
}
return(crc16);
}``
//
以上为原文档，经过不断尝试，最终成功生成Java串口通讯指令校验码
/*/

package com.kx.rxtx;
/**
 * 处理串口指令的工具类
 * **/
public class CRC16Util {

	static final char TABLE1021[] = {
	           0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50a5, 0x60c6, 0x70e7, 0x8108,  
	             0x9129, 0xa14a, 0xb16b, 0xc18c, 0xd1ad, 0xe1ce, 0xf1ef, 0x1231,  
	             0x0210, 0x3273, 0x2252, 0x52b5, 0x4294, 0x72f7, 0x62d6, 0x9339,  
	             0x8318, 0xb37b, 0xa35a, 0xd3bd, 0xc39c, 0xf3ff, 0xe3de, 0x2462,  
	             0x3443, 0x0420, 0x1401, 0x64e6, 0x74c7, 0x44a4, 0x5485, 0xa56a,  
	             0xb54b, 0x8528, 0x9509, 0xe5ee, 0xf5cf, 0xc5ac, 0xd58d, 0x3653,  
	             0x2672, 0x1611, 0x0630, 0x76d7, 0x66f6, 0x5695, 0x46b4, 0xb75b,  
	             0xa77a, 0x9719, 0x8738, 0xf7df, 0xe7fe, 0xd79d, 0xc7bc, 0x48c4,  
	             0x58e5, 0x6886, 0x78a7, 0x0840, 0x1861, 0x2802, 0x3823, 0xc9cc,  
	             0xd9ed, 0xe98e, 0xf9af, 0x8948, 0x9969, 0xa90a, 0xb92b, 0x5af5,  
	             0x4ad4, 0x7ab7, 0x6a96, 0x1a71, 0x0a50, 0x3a33, 0x2a12, 0xdbfd,  
	             0xcbdc, 0xfbbf, 0xeb9e, 0x9b79, 0x8b58, 0xbb3b, 0xab1a, 0x6ca6,  
	             0x7c87, 0x4ce4, 0x5cc5, 0x2c22, 0x3c03, 0x0c60, 0x1c41, 0xedae,  
	             0xfd8f, 0xcdec, 0xddcd, 0xad2a, 0xbd0b, 0x8d68, 0x9d49, 0x7e97,  
	             0x6eb6, 0x5ed5, 0x4ef4, 0x3e13, 0x2e32, 0x1e51, 0x0e70, 0xff9f,  
	             0xefbe, 0xdfdd, 0xcffc, 0xbf1b, 0xaf3a, 0x9f59, 0x8f78, 0x9188,  
	             0x81a9, 0xb1ca, 0xa1eb, 0xd10c, 0xc12d, 0xf14e, 0xe16f, 0x1080,  
	             0x00a1, 0x30c2, 0x20e3, 0x5004, 0x4025, 0x7046, 0x6067, 0x83b9,  
	             0x9398, 0xa3fb, 0xb3da, 0xc33d, 0xd31c, 0xe37f, 0xf35e, 0x02b1,  
	             0x1290, 0x22f3, 0x32d2, 0x4235, 0x5214, 0x6277, 0x7256, 0xb5ea,  
	             0xa5cb, 0x95a8, 0x8589, 0xf56e, 0xe54f, 0xd52c, 0xc50d, 0x34e2,  
	             0x24c3, 0x14a0, 0x0481, 0x7466, 0x6447, 0x5424, 0x4405, 0xa7db,  
	             0xb7fa, 0x8799, 0x97b8, 0xe75f, 0xf77e, 0xc71d, 0xd73c, 0x26d3,  
	             0x36f2, 0x0691, 0x16b0, 0x6657, 0x7676, 0x4615, 0x5634, 0xd94c,  
	             0xc96d, 0xf90e, 0xe92f, 0x99c8, 0x89e9, 0xb98a, 0xa9ab, 0x5844,  
	             0x4865, 0x7806, 0x6827, 0x18c0, 0x08e1, 0x3882, 0x28a3, 0xcb7d,  
	             0xdb5c, 0xeb3f, 0xfb1e, 0x8bf9, 0x9bd8, 0xabbb, 0xbb9a, 0x4a75,  
	             0x5a54, 0x6a37, 0x7a16, 0x0af1, 0x1ad0, 0x2ab3, 0x3a92, 0xfd2e,  
	             0xed0f, 0xdd6c, 0xcd4d, 0xbdaa, 0xad8b, 0x9de8, 0x8dc9, 0x7c26,  
	             0x6c07, 0x5c64, 0x4c45, 0x3ca2, 0x2c83, 0x1ce0, 0x0cc1, 0xef1f,  
	             0xff3e, 0xcf5d, 0xdf7c, 0xaf9b, 0xbfba, 0x8fd9, 0x9ff8, 0x6e17,  
	             0x7e36, 0x4e55, 0x5e74, 0x2e93, 0x3eb2, 0x0ed1, 0x1ef0 };  
	         
	    /**
	     * 生成校验码的int值
	     * */
	    static int crc16_ccitt(byte buf[], int len) {
	        int counter;
	        int crc = 0;
	        for (counter = 0; counter < len; counter++) {
	            crc = (crc << 8) ^ TABLE1021[((crc >> 8) ^ buf[counter]) & 0x00FF];
	        }
	        return crc & 0xFFFF;
	    }
	    
	    /**
		 * 16进制字符串转换为Byte型数组16进制源字符串
		 * @param 16进制字符串
		 * @return Byte类型数组
		 */
		public static byte[] HexStringToByte(String hexString) {
		   hexString = hexString.replace(" ", "");
		   int len = hexString.length();
		   if (len % 2 != 0)
		      return null;
		   byte[] bufD = new byte[len / 2];
		   byte[] tmpBuf = hexString.getBytes();
		   int i = 0, j = 0;
		   for (i = 0; i < len; i++) {
		      if (tmpBuf[i] >= 0x30 && tmpBuf[i] <= 0x39)
		         tmpBuf[i] -= 0x30;
		      else if (tmpBuf[i] >= 0x41 && tmpBuf[i] <= 0x46)
		         tmpBuf[i] -= 0x37;
		      else if (tmpBuf[i] >= 0x61 && tmpBuf[i] <= 0x66)
		         tmpBuf[i] -= 0x57;
		      else
		         tmpBuf[i] = 0xF;
		   }
		   for (i = 0, j = 0; i < len; i += 2, j++) {
		      bufD[j] = (byte) ((tmpBuf[i] << 4) | tmpBuf[i + 1]);
		   }
		   return bufD;

		}
	    
		/**
	     * 将int值转16进制字符串，即得到校验码
	     * */
		public static String decToHex(int dec) {
		    String hex = "";
		    while(dec != 0) {
		        String h = Integer.toString(dec & 0xff, 16);
		        if((h.length() & 0x01) == 1)
		            h = '0' + h;
		        hex = hex + h;
		        dec = dec >> 8;
		    }
		    return hex;
		}
		
		
	    public static void main(String[] args) {
			byte[] buf = HexStringToByte("03 00 19 00 02 02");//02 08 00 [10 60] 03 00 19 00 02 02 03
			int crc16_ccitt = crc16_ccitt(buf,buf.length);
			System.out.println(decToHex(crc16_ccitt));//得到 10 60 校验码
		}
}