JAVA CRC16
JAVA CRC16
/**
* CRC-16
*
* <table width="400px" border="1" cellpadding="0" cellspacing="0">
* <tr>
* <th>名称</th>
* <th>多项式</th>
* <th>初始值</th>
* <th>异或值</th>
* <th>Bit反转</th>
* </tr>
* <tr>
* <td> CRC-16/IBM</td>
* <td align="center">0x8005</td>
* <td align="center">0x0000</td>
* <td align="center">0x0000</td>
* <td align="center">LSB First</td>
* </tr>
* <tr>
* <td> CRC-16/CCITT</td>
* <td align="center">0x1021</td>
* <td align="center">0x0000</td>
* <td align="center">0x0000</td>
* <td align="center">LSB First</td>
* </tr>
* <tr>
* <td> CRC-16/CCITT-FALSE</td>
* <td align="center">0x1021</td>
* <td align="center">0xFFFF</td>
* <td align="center">0x0000</td>
* <td align="center">MSB First</td>
* </tr>
* <tr>
* <td> CRC-16/DECT R</td>
* <td align="center">0x0589</td>
* <td align="center">0x0000</td>
* <td align="center">0x0001</td>
* <td align="center">MSB First</td>
* </tr>
* <tr>
* <td> CRC-16/DECT X</td>
* <td align="center">0x0589</td>
* <td align="center">0x0000</td>
* <td align="center">0x0000</td>
* <td align="center">MSB First</td>
* </tr>
* <tr>
* <td> CRC-16/DNP</td>
* <td align="center">0x3D65</td>
* <td align="center">0x0000</td>
* <td align="center">0xFFFF</td>
* <td align="center">LSB First</td>
* </tr>
* <tr>
* <td> CRC-16/GENIBUS</td>
* <td align="center">0x1021</td>
* <td align="center">0xFFFF</td>
* <td align="center">0xFFFF</td>
* <td align="center">MSB First</td>
* </tr>
* <tr>
* <td> CRC-16/MAXIM</td>
* <td align="center">0x8005</td>
* <td align="center">0x0000</td>
* <td align="center">0xFFFF</td>
* <td align="center">LSB First</td>
* </tr>
* <tr>
* <td> CRC-16/MODBUS</td>
* <td align="center">0x8005</td>
* <td align="center">0xFFFF</td>
* <td align="center">0x0000</td>
* <td align="center">LSB First</td>
* </tr>
* <tr>
* <td> CRC-16/USB</td>
* <td align="center">0x8005</td>
* <td align="center">0xFFFF</td>
* <td align="center">0xFFFF</td>
* <td align="center">LSB First</td>
* </tr>
* <tr>
* <td> CRC-16/X25</td>
* <td align="center">0x1021</td>
* <td align="center">0xFFFF</td>
* <td align="center">0xFFFF</td>
* <td align="center">LSB First</td>
* </tr>
* <tr>
* <td> CRC-16/XMODEM</td>
* <td align="center">0x1021</td>
* <td align="center">0x0000</td>
* <td align="center">0x0000</td>
* <td align="center">MSB First</td>
* </tr>
* </table>
*
* @author unnamed
*
*/
public class CRC16Utils { /**
* CRC-16/IBM
*
* <table width="400px" border="1" cellpadding="0" cellspacing="0">
* <tr>
* <th>多项式</th>
* <th>初始值</th>
* <th>异或值</th>
* <th>Bit反转</th>
* </tr>
* <tr>
* <td align="center">0x8005</td>
* <td align="center">0x0000</td>
* <td align="center">0x0000</td>
* <td align="center">LSB First</td>
* </tr>
* </table>
*
* @param source
* @param offset
* @param length
* @return
*/
public static int CRC16_IBM(byte[] source, int offset, int length) {
int wCRCin = 0x0000;
// Integer.reverse(0x8005) >>> 16
int wCPoly = 0xA001;
for (int i = offset, cnt = offset + length; i < cnt; i++) {
wCRCin ^= ((int) source[i] & 0x00FF);
for (int j = 0; j < 8; j++) {
if ((wCRCin & 0x0001) != 0) {
wCRCin >>= 1;
wCRCin ^= wCPoly;
} else {
wCRCin >>= 1;
}
}
}
return wCRCin ^= 0x0000;
} /**
* CRC-16/CCITT
*
* <table width="400px" border="1" cellpadding="0" cellspacing="0">
* <tr>
* <th>多项式</th>
* <th>初始值</th>
* <th>异或值</th>
* <th>Bit反转</th>
* </tr>
* <tr>
* <td align="center">0x1021</td>
* <td align="center">0x0000</td>
* <td align="center">0x0000</td>
* <td align="center">LSB First</td>
* </tr>
* </table>
*
* @param source
* @param offset
* @param length
* @return
*/
public static int CRC16_CCITT(byte[] source, int offset, int length) {
int wCRCin = 0x0000;
// Integer.reverse(0x1021) >>> 16
int wCPoly = 0x8408;
for (int i = offset, cnt = offset + length; i < cnt; i++) {
wCRCin ^= ((int) source[i] & 0x00FF);
for (int j = 0; j < 8; j++) {
if ((wCRCin & 0x0001) != 0) {
wCRCin >>= 1;
wCRCin ^= wCPoly;
} else {
wCRCin >>= 1;
}
}
}
return wCRCin ^= 0x0000;
} /**
* CRC-16/CCITT-FALSE
*
* <table width="400px" border="1" cellpadding="0" cellspacing="0">
* <tr>
* <th>多项式</th>
* <th>初始值</th>
* <th>异或值</th>
* <th>Bit反转</th>
* </tr>
* <tr>
* <td align="center">0x1021</td>
* <td align="center">0xFFFF</td>
* <td align="center">0x0000</td>
* <td align="center">MSB First</td>
* </tr>
* </table>
*
* @param source
* @param offset
* @param length
* @return
*/
public static int CRC16_CCITT_FALSE(byte[] source, int offset, int length) {
int wCRCin = 0xFFFF;
int wCPoly = 0x1021;
for (int i = offset, cnt = offset + length; i < cnt; i++) {
for (int j = 0; j < 8; j++) {
boolean bit = ((source[i] >> (7 - j) & 1) == 1);
boolean c15 = ((wCRCin >> 15 & 1) == 1);
wCRCin <<= 1;
if (c15 ^ bit)
wCRCin ^= wCPoly;
}
}
wCRCin &= 0xFFFF;
return wCRCin ^= 0x0000;
} /**
* CRC-16/DECT R
*
* <table width="400px" border="1" cellpadding="0" cellspacing="0">
* <tr>
* <th>多项式</th>
* <th>初始值</th>
* <th>异或值</th>
* <th>Bit反转</th>
* </tr>
* <tr>
* <td align="center">0x0589</td>
* <td align="center">0x0000</td>
* <td align="center">0x0001</td>
* <td align="center">MSB First</td>
* </tr>
* </table>
*
* @param source
* @param offset
* @param length
* @return
*/
public static int CRC16_DECT_R(byte[] source, int offset, int length) {
int wCRCin = 0x0000;
int wCPoly = 0x0589;
for (int i = offset, cnt = offset + length; i < cnt; i++) {
for (int j = 0; j < 8; j++) {
boolean bit = ((source[i] >> (7 - j) & 1) == 1);
boolean c15 = ((wCRCin >> 15 & 1) == 1);
wCRCin <<= 1;
if (c15 ^ bit)
wCRCin ^= wCPoly;
}
}
wCRCin &= 0xFFFF;
return wCRCin ^= 0x0001;
} /**
* CRC-16/DECT X
*
* <table width="400px" border="1" cellpadding="0" cellspacing="0">
* <tr>
* <th>多项式</th>
* <th>初始值</th>
* <th>异或值</th>
* <th>Bit反转</th>
* </tr>
* <tr>
* <td align="center">0x0589</td>
* <td align="center">0x0000</td>
* <td align="center">0x0000</td>
* <td align="center">MSB First</td>
* </tr>
* </table>
*
* @param source
* @param offset
* @param length
* @return
*/
public static int CRC16_DECT_X(byte[] source, int offset, int length) {
int wCRCin = 0x0000;
int wCPoly = 0x0589;
for (int i = offset, cnt = offset + length; i < cnt; i++) {
for (int j = 0; j < 8; j++) {
boolean bit = ((source[i] >> (7 - j) & 1) == 1);
boolean c15 = ((wCRCin >> 15 & 1) == 1);
wCRCin <<= 1;
if (c15 ^ bit)
wCRCin ^= wCPoly;
}
}
wCRCin &= 0xFFFF;
return wCRCin ^= 0x0000;
} /**
* CRC-16/DNP
*
* <table width="400px" border="1" cellpadding="0" cellspacing="0">
* <tr>
* <th>多项式</th>
* <th>初始值</th>
* <th>异或值</th>
* <th>Bit反转</th>
* </tr>
* <tr>
* <td align="center">0x3D65</td>
* <td align="center">0x0000</td>
* <td align="center">0xFFFF</td>
* <td align="center">LSB First</td>
* </tr>
* </table>
*
* @param source
* @param offset
* @param length
* @return
*/
public static int CRC16_DNP(byte[] source, int offset, int length) {
int wCRCin = 0x0000;
// Integer.reverse(0x3D65) >>> 16
int wCPoly = 0xA6BC;
for (int i = offset, cnt = offset + length; i < cnt; i++) {
wCRCin ^= ((int) source[i] & 0x00FF);
for (int j = 0; j < 8; j++) {
if ((wCRCin & 0x0001) != 0) {
wCRCin >>= 1;
wCRCin ^= wCPoly;
} else {
wCRCin >>= 1;
}
}
}
return wCRCin ^= 0xFFFF;
} /**
* CRC-16/GENIBUS
*
* <table width="400px" border="1" cellpadding="0" cellspacing="0">
* <tr>
* <th>多项式</th>
* <th>初始值</th>
* <th>异或值</th>
* <th>Bit反转</th>
* </tr>
* <tr>
* <td align="center">0x1021</td>
* <td align="center">0xFFFF</td>
* <td align="center">0xFFFF</td>
* <td align="center">MSB First</td>
* </tr>
* </table>
*
* @param source
* @param offset
* @param length
* @return
*/
public static int CRC16_GENIBUS(byte[] source, int offset, int length) {
int wCRCin = 0xFFFF;
int wCPoly = 0x1021;
for (int i = offset, cnt = offset + length; i < cnt; i++) {
for (int j = 0; j < 8; j++) {
boolean bit = ((source[i] >> (7 - j) & 1) == 1);
boolean c15 = ((wCRCin >> 15 & 1) == 1);
wCRCin <<= 1;
if (c15 ^ bit)
wCRCin ^= wCPoly;
}
}
wCRCin &= 0xFFFF;
return wCRCin ^= 0xFFFF;
} /**
* CRC-16/MAXIM
*
* <table width="400px" border="1" cellpadding="0" cellspacing="0">
* <tr>
* <th>多项式</th>
* <th>初始值</th>
* <th>异或值</th>
* <th>Bit反转</th>
* </tr>
* <tr>
* <td align="center">0x8005</td>
* <td align="center">0x0000</td>
* <td align="center">0xFFFF</td>
* <td align="center">LSB First</td>
* </tr>
* </table>
*
* @param source
* @param offset
* @param length
* @return
*/
public static int CRC16_MAXIM(byte[] source, int offset, int length) {
int wCRCin = 0x0000;
// Integer.reverse(0x8005) >>> 16
int wCPoly = 0xA001;
for (int i = offset, cnt = offset + length; i < cnt; i++) {
wCRCin ^= ((int) source[i] & 0x00FF);
for (int j = 0; j < 8; j++) {
if ((wCRCin & 0x0001) != 0) {
wCRCin >>= 1;
wCRCin ^= wCPoly;
} else {
wCRCin >>= 1;
}
}
}
return wCRCin ^= 0xFFFF;
} /**
* CRC-16/MODBUS
*
* <table width="400px" border="1" cellpadding="0" cellspacing="0">
* <tr>
* <th>多项式</th>
* <th>初始值</th>
* <th>异或值</th>
* <th>Bit反转</th>
* </tr>
* <tr>
* <td align="center">0x8005</td>
* <td align="center">0xFFFF</td>
* <td align="center">0x0000</td>
* <td align="center">LSB First</td>
* </tr>
* </table>
*
* @param source
* @param offset
* @param length
* @return
*/
public static int CRC16_MODBUS(byte[] source, int offset, int length) {
int wCRCin = 0xFFFF;
// Integer.reverse(0x8005) >>> 16
int wCPoly = 0xA001;
for (int i = offset, cnt = offset + length; i < cnt; i++) {
wCRCin ^= ((int) source[i] & 0x00FF);
for (int j = 0; j < 8; j++) {
if ((wCRCin & 0x0001) != 0) {
wCRCin >>= 1;
wCRCin ^= wCPoly;
} else {
wCRCin >>= 1;
}
}
}
return wCRCin ^= 0x0000;
} /**
* CRC-16/USB
*
* <table width="400px" border="1" cellpadding="0" cellspacing="0">
* <tr>
* <th>多项式</th>
* <th>初始值</th>
* <th>异或值</th>
* <th>Bit反转</th>
* </tr>
* <tr>
* <td align="center">0x8005</td>
* <td align="center">0xFFFF</td>
* <td align="center">0xFFFF</td>
* <td align="center">LSB First</td>
* </tr>
* </table>
*
* @param source
* @param offset
* @param length
* @return
*/
public static int CRC16_USB(byte[] source, int offset, int length) {
int wCRCin = 0xFFFF;
// Integer.reverse(0x8005) >>> 16
int wCPoly = 0xA001;
for (int i = offset, cnt = offset + length; i < cnt; i++) {
wCRCin ^= ((int) source[i] & 0x00FF);
for (int j = 0; j < 8; j++) {
if ((wCRCin & 0x0001) != 0) {
wCRCin >>= 1;
wCRCin ^= wCPoly;
} else {
wCRCin >>= 1;
}
}
}
return wCRCin ^= 0xFFFF;
} /**
* CRC-16/X25
*
* <table width="400px" border="1" cellpadding="0" cellspacing="0">
* <tr>
* <th>多项式</th>
* <th>初始值</th>
* <th>异或值</th>
* <th>Bit反转</th>
* </tr>
* <tr>
* <td align="center">0x1021</td>
* <td align="center">0xFFFF</td>
* <td align="center">0xFFFF</td>
* <td align="center">LSB First</td>
* </tr>
* </table>
*
* @param source
* @param offset
* @param length
* @return
*/
public static int CRC16_X25(byte[] source, int offset, int length) {
int wCRCin = 0xFFFF;
// Integer.reverse(0x1021) >>> 16
int wCPoly = 0x8408;
for (int i = offset, cnt = offset + length; i < cnt; i++) {
wCRCin ^= ((int) source[i] & 0x00FF);
for (int j = 0; j < 8; j++) {
if ((wCRCin & 0x0001) != 0) {
wCRCin >>= 1;
wCRCin ^= wCPoly;
} else {
wCRCin >>= 1;
}
}
}
return wCRCin ^= 0xFFFF;
} /**
* CRC-16/XMODEM
*
* <table width="400px" border="1" cellpadding="0" cellspacing="0">
* <tr>
* <th>多项式</th>
* <th>初始值</th>
* <th>异或值</th>
* <th>Bit反转</th>
* </tr>
* <tr>
* <td align="center">0x1021</td>
* <td align="center">0x0000</td>
* <td align="center">0x0000</td>
* <td align="center">MSB First</td>
* </tr>
* </table>
*
* @param source
* @param offset
* @param length
* @return
*/
public static int CRC16_XMODEM(byte[] source, int offset, int length) {
int wCRCin = 0x0000;
int wCPoly = 0x1021;
for (int i = offset, cnt = offset + length; i < cnt; i++) {
for (int j = 0; j < 8; j++) {
boolean bit = ((source[i] >> (7 - j) & 1) == 1);
boolean c15 = ((wCRCin >> 15 & 1) == 1);
wCRCin <<= 1;
if (c15 ^ bit)
wCRCin ^= wCPoly;
}
}
wCRCin &= 0xFFFF;
return wCRCin ^= 0x0000;
} }
转：https://blog.csdn.net/zte1055889498/article/details/102686777
JAVA CRC16的更多相关文章
- java CRC16 算法
代码摘自:https://www.cnblogs.com/lujiannt/p/9246256.html 1.CRC16算法 public class CRC16Util { /** * 计算CRC1 ...
- Java CRC16 MODBUS校验算法实现
/** * CRC校验算法工具类 */ public class CRCUtil { public static String getCRC(String data) { data = data.re ...
- C#,Java,C -循环冗余检验：CRC-16-CCITT查表法
C#代码 using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace ...
- Spark案例分析
一.需求:计算网页访问量前三名 import org.apache.spark.rdd.RDD import org.apache.spark.{SparkConf, SparkContext} /* ...
- CRC16算法之三：CRC16-CCITT-MODBUS算法的java实现
CRC16算法系列文章: CRC16算法之一:CRC16-CCITT-FALSE算法的java实现 CRC16算法之二:CRC16-CCITT-XMODEM算法的java实现 CRC16算法之三:CR ...
- CRC16算法之一：CRC16-CCITT-FALSE算法的java实现
CRC16算法系列文章: CRC16算法之一:CRC16-CCITT-FALSE算法的java实现 CRC16算法之二:CRC16-CCITT-XMODEM算法的java实现 CRC16算法之三:CR ...
- CRC16算法之二：CRC16-CCITT-XMODEM算法的java实现
CRC16算法系列文章: CRC16算法之一:CRC16-CCITT-FALSE算法的java实现 CRC16算法之二:CRC16-CCITT-XMODEM算法的java实现 CRC16算法之三:CR ...
- C++与JAVA代码实现CRC-16/MODBUS算法，且与 http://www.ip33.com/crc.html 进行结果验证
CRC-16/MODBUS的多项式为:x16+x15+x2+1(8005),宽度为16.运算时,首先将一个16位的寄存器预置为11111111 11111111,然后连续把数据帧中的每个字节中的8位与 ...
- CRC-16/XMODE X16+X12+X5+1 C#、C和java环境下实现
private byte[] CRC(byte[] x, int len) //CRC校验函数 { ]; UInt16 crc = ; byte da; ; UInt16[] yu = { 0x000 ...
- CRC16校验
C++中的代码如下:传入字节(byte)数组引用和数组长度 unsigned short CTcpClient::Crc16(const char *pBuf, unsigned short nLen ...
随机推荐
- 欢迎来到hitcorgi,corgi居然被抢注了
1 #include <iostream> 2 3 using namespace std; 4 5 int main() 6 { 7 cout << "Hello ...
- JavaScript 语法：运算符号
作者:WangMin 格言:努力做好自己喜欢的每一件事 JavaScript要进行各种各样的运算,就要使用不同的运算符号. JavaScript 算数运算符 算数运算符用于对数字执行算数运算,分别有以 ...
- 如何将word格式的文档转换成markdown格式的文档
如何将word格式的文档转换成markdown格式的文档 如何将word格式的文档转换成markdown格式的文档 前言 A. 介绍Markdown和Word格式文档 什么是Markdown? Mar ...
- Java之引用传递
引用传递分析 类本身就属于引用数据类型,既然是引用数据类型,就会牵扯到内存的引用传递. 引用传递的本质:同一块堆内存空间可以被不同的栈内存所指向,也可以变更指向. 引用传递案例 先看一个应用传递的例子 ...
- RTMP协议学习——从握手到播放
从客户端发起播放请求,到rtrmp视频流开始播放,大致经过了握手->建立连接->创建流->播放这几步比较重要的步骤.下面我将结合wireshark的抓包,对其中的每个流程进行分析和学 ...
- 如何修改Ubuntu的时间与时间同步
1.安装ntpdate,同步标准时间 zce@ubuntu:~$ sudo apt install ntpdate 输入管理员密码确认安装 zce@ubuntu:~$ sudo apt install ...
- Netty源码学习7——netty是如何发送数据的
零丶引入 系列文章目录和关于我 经过<Netty源码学习4--服务端是处理新连接的&netty的reactor模式和<Netty源码学习5--服务端是如何读取数据的>,我们了 ...
- 写入数据或者通过EXCEl批量导入到数据库时报类型转换异常问题
报错日志如下(此处我用的是达梦,实际MySQL和oracle也会有类似的问题): Cause: org.apache.ibatis.type.TypeException: Error setting ...
- 吉特日化MES系统&生产工艺控制参数对照表
吉特日化MES生产工艺参数对照表 工艺编号 PROCE_BASE_TIMER 工艺名称 定时器 工艺说明 主要用于生产工艺步骤过程计时 参数编号 参数名称 参数描述 Prop_Timer_Enable ...
- Socket编程和实现聊天室
一.HTTP协议的socket通信 1.server.py # 服务端 import sys import socket ip_point = ('127.0.0.1',9999) sk = sock ...