package com.sandu.ximon.admin.manager.iot.rrpc.util;
|
|
public class CRCUtils {
|
/**
|
* 计算CRC16/Modbus校验码 高位在前,低位在后
|
*
|
* @param hex 十六进制字符串
|
* @return CRC16校验码
|
*/
|
public static String getCRC16 (String hex) {
|
byte[] tx_buff = SupplementUtils.hexStringToBytes(hex);
|
int[] result = CRCValidate.calculateCRC(tx_buff, 0, tx_buff.length);
|
String hex1 = Integer.toHexString(result[1]);
|
String hex2 = Integer.toHexString(result[0]);
|
|
if (hex1.length()<2) {
|
hex1 = "0" + hex1;
|
}
|
if (hex2.length()<2) {
|
hex2 = "0" + hex2;
|
}
|
return ( hex2 + hex1 ).toUpperCase();
|
}
|
}
|
