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CRCMaster.cs
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CRCMaster.cs
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace CRC_Master
{
public class CRCMaster
{
public static byte CRC8(byte[] data)
{
var CRC = 0;
for (UInt32 pos = 0; pos < data.Length; pos++)
{
CRC = CRC + data[pos];
CRC &= 0xff;
}
return (byte)CRC;
}
public static ushort CRC16(byte[] data)
{
var crc = 0x0000;
for (var pos = 0; pos < data.Length; pos++)
{
crc ^= data[pos];
for (var i = 8; i != 0; i--)
{
if ((crc & 0x0001) != 0)
{
crc >>= 1;
crc ^= 0xA001;
}
else
crc >>= 1;
}
}
return (ushort)crc;
}
public static ushort CRC16Sick(byte[] data)
{
var crc = 0;
var c = 0;
for (var i = 0; i < data.Length; i++)
{
c = c << 8;
c |= data[i];
if ((crc & 0x8000)!=0)
{
crc = crc << 1;
crc ^= 0x8005;
crc ^= c;
}
else
{
crc = crc << 1;
crc ^= c;
}
}
crc &= 0xFFFF;
crc = (crc << 8) | (crc >> 8);
return (ushort)(crc & 0xFFFF);
}
public static ushort CRC16Modbus(byte[] data)
{
var crc = 0xFFFF;
for (var pos = 0; pos < data.Length; pos++)
{
crc ^= data[pos];
for (var i = 8; i != 0; i--)
{
if ((crc & 0x0001) != 0)
{
crc >>= 1;
crc ^= 0xA001;
}
else
crc >>= 1;
}
}
return (ushort)crc;
}
public static ushort CRCXModem(byte[] data)
{
var crc = 0;
for (var c = 0; c < data.Length; c++)
{
crc ^= (data[c] << 8);
for (var i = 0; i < 8; i++)
{
if ((crc & 0x8000)!=0)
crc = (crc << 1) ^ 0x1021;
else
crc = crc << 1;
}
}
return (ushort)(crc & 0xFFFF);
}
public static ushort CRCFFFF(byte[] data)
{
var crc = 0xFFFF;
for (var c = 0; c < data.Length; c++)
{
crc ^= (data[c] << 8);
for (var i = 0; i < 8; i++)
{
if ((crc & 0x8000)!=0)
crc = (crc << 1) ^ 0x1021;
else
crc = crc << 1;
}
}
return (ushort)(crc & 0xFFFF);
}
public static ushort CRC1D0F(byte[] data)
{
var crc = 0x1d0f;
for (var c = 0; c < data.Length; c++)
{
crc ^= (data[c] << 8);
for (var i = 0; i < 8; i++)
{
if ((crc & 0x8000)!=0)
crc = (crc << 1) ^ 0x1021;
else
crc = crc << 1;
}
}
return (ushort)(crc & 0xFFFF);
}
public static ushort CRCKermit(byte[] data)
{
var crc = 0;
for (var c = 0; c < data.Length; c++)
{
crc ^= (data[c] & 0xFF);
for (var i = 0; i < 8; i++)
{
if ((crc & 0x0001) != 0)
crc = ((crc >> 1) ^ 0x8408);
else
crc = crc >> 1;
}
}
crc = (crc << 8) | (crc >> 8);
return (ushort)(crc & 0xFFFF);
}
public static ushort CRCDNP(byte[] data)
{
ushort[] CRCTableDNP = new ushort[256];
ushort i1;
byte j1;
var crc1=0;
var c1=0;
for (i1 = 0; i1 < 256; i1++)
{
crc1 = 0;
c1 = i1;
for (j1 = 0; j1 < 8; j1++)
{
if (((crc1 ^ c1) & 0x0001)!=0) crc1 = (crc1 >> 1) ^ 0xA6BC;
else crc1 = crc1 >> 1;
c1 = c1 >> 1;
}
CRCTableDNP[i1] =(ushort)crc1;
}
var crc = 0;
var tmp = 0;
for (var c = 0; c < data.Length; c++)
{
crc ^= (data[c] & 0xFF);
tmp = (crc & 0xFF);
crc = ((crc >> 8) ^ CRCTableDNP[tmp]);
}
crc = (crc << 8) | (crc >> 8);
crc &= 0xFFFF;
return (ushort)(0xFFFF - crc);
}
public static UInt32 CRC32(byte[] data)
{
UInt32[] CRCTable = new UInt32[] { 0x00000000, 0x77073096, 0xEE0E612C, 0x990951BA, 0x076DC419, 0x706AF48F, 0xE963A535,
0x9E6495A3, 0x0EDB8832, 0x79DCB8A4, 0xE0D5E91E, 0x97D2D988, 0x09B64C2B, 0x7EB17CBD, 0xE7B82D07, 0x90BF1D91,
0x1DB71064, 0x6AB020F2, 0xF3B97148, 0x84BE41DE, 0x1ADAD47D, 0x6DDDE4EB, 0xF4D4B551, 0x83D385C7, 0x136C9856,
0x646BA8C0, 0xFD62F97A, 0x8A65C9EC, 0x14015C4F, 0x63066CD9, 0xFA0F3D63, 0x8D080DF5, 0x3B6E20C8, 0x4C69105E,
0xD56041E4, 0xA2677172, 0x3C03E4D1, 0x4B04D447, 0xD20D85FD, 0xA50AB56B, 0x35B5A8FA, 0x42B2986C, 0xDBBBC9D6,
0xACBCF940, 0x32D86CE3, 0x45DF5C75, 0xDCD60DCF, 0xABD13D59, 0x26D930AC, 0x51DE003A, 0xC8D75180, 0xBFD06116,
0x21B4F4B5, 0x56B3C423, 0xCFBA9599, 0xB8BDA50F, 0x2802B89E, 0x5F058808, 0xC60CD9B2, 0xB10BE924, 0x2F6F7C87,
0x58684C11, 0xC1611DAB, 0xB6662D3D, 0x76DC4190, 0x01DB7106, 0x98D220BC, 0xEFD5102A, 0x71B18589, 0x06B6B51F,
0x9FBFE4A5, 0xE8B8D433, 0x7807C9A2, 0x0F00F934, 0x9609A88E, 0xE10E9818, 0x7F6A0DBB, 0x086D3D2D, 0x91646C97,
0xE6635C01, 0x6B6B51F4, 0x1C6C6162, 0x856530D8, 0xF262004E, 0x6C0695ED, 0x1B01A57B, 0x8208F4C1, 0xF50FC457,
0x65B0D9C6, 0x12B7E950, 0x8BBEB8EA, 0xFCB9887C, 0x62DD1DDF, 0x15DA2D49, 0x8CD37CF3, 0xFBD44C65, 0x4DB26158,
0x3AB551CE, 0xA3BC0074, 0xD4BB30E2, 0x4ADFA541, 0x3DD895D7, 0xA4D1C46D, 0xD3D6F4FB, 0x4369E96A, 0x346ED9FC,
0xAD678846, 0xDA60B8D0, 0x44042D73, 0x33031DE5, 0xAA0A4C5F, 0xDD0D7CC9, 0x5005713C, 0x270241AA, 0xBE0B1010,
0xC90C2086, 0x5768B525, 0x206F85B3, 0xB966D409, 0xCE61E49F, 0x5EDEF90E, 0x29D9C998, 0xB0D09822, 0xC7D7A8B4,
0x59B33D17, 0x2EB40D81, 0xB7BD5C3B, 0xC0BA6CAD, 0xEDB88320, 0x9ABFB3B6, 0x03B6E20C, 0x74B1D29A, 0xEAD54739,
0x9DD277AF, 0x04DB2615, 0x73DC1683, 0xE3630B12, 0x94643B84, 0x0D6D6A3E, 0x7A6A5AA8, 0xE40ECF0B, 0x9309FF9D,
0x0A00AE27, 0x7D079EB1, 0xF00F9344, 0x8708A3D2, 0x1E01F268, 0x6906C2FE, 0xF762575D, 0x806567CB, 0x196C3671,
0x6E6B06E7, 0xFED41B76, 0x89D32BE0, 0x10DA7A5A, 0x67DD4ACC, 0xF9B9DF6F, 0x8EBEEFF9, 0x17B7BE43, 0x60B08ED5,
0xD6D6A3E8, 0xA1D1937E, 0x38D8C2C4, 0x4FDFF252, 0xD1BB67F1, 0xA6BC5767, 0x3FB506DD, 0x48B2364B, 0xD80D2BDA,
0xAF0A1B4C, 0x36034AF6, 0x41047A60, 0xDF60EFC3, 0xA867DF55, 0x316E8EEF, 0x4669BE79, 0xCB61B38C, 0xBC66831A,
0x256FD2A0, 0x5268E236, 0xCC0C7795, 0xBB0B4703, 0x220216B9, 0x5505262F, 0xC5BA3BBE, 0xB2BD0B28, 0x2BB45A92,
0x5CB36A04, 0xC2D7FFA7, 0xB5D0CF31, 0x2CD99E8B, 0x5BDEAE1D, 0x9B64C2B0, 0xEC63F226, 0x756AA39C, 0x026D930A,
0x9C0906A9, 0xEB0E363F, 0x72076785, 0x05005713, 0x95BF4A82, 0xE2B87A14, 0x7BB12BAE, 0x0CB61B38, 0x92D28E9B,
0xE5D5BE0D, 0x7CDCEFB7, 0x0BDBDF21, 0x86D3D2D4, 0xF1D4E242, 0x68DDB3F8, 0x1FDA836E, 0x81BE16CD, 0xF6B9265B,
0x6FB077E1, 0x18B74777, 0x88085AE6, 0xFF0F6A70, 0x66063BCA, 0x11010B5C, 0x8F659EFF, 0xF862AE69, 0x616BFFD3,
0x166CCF45, 0xA00AE278, 0xD70DD2EE, 0x4E048354, 0x3903B3C2, 0xA7672661, 0xD06016F7, 0x4969474D, 0x3E6E77DB,
0xAED16A4A, 0xD9D65ADC, 0x40DF0B66, 0x37D83BF0, 0xA9BCAE53, 0xDEBB9EC5, 0x47B2CF7F, 0x30B5FFE9, 0xBDBDF21C,
0xCABAC28A, 0x53B39330, 0x24B4A3A6, 0xBAD03605, 0xCDD70693, 0x54DE5729, 0x23D967BF, 0xB3667A2E, 0xC4614AB8,
0x5D681B02, 0x2A6F2B94, 0xB40BBE37, 0xC30C8EA1, 0x5A05DF1B, 0x2D02EF8D };
var r = 0xffffffff;
for (var i = 0; i < data.Length; i++)
{
r = (r >> 8) ^ CRCTable[data[i] ^ (r & 0x000000FF)];
}
return ~r;
}
public static byte FCS (byte[] data)
{
byte r = 0;
for(UInt32 i = 0; i < data.Length; i++)
{
r ^= data[i];
}
return r;
}
public static byte[] stringToBytes(string text)
{
int length;
Byte[] data;
if (text.Length < 2)
return null;
text = text.Replace(" ", String.Empty);
text = text.Replace("-", String.Empty);
text = text.Replace("$", String.Empty);
text = text.Replace("h", String.Empty);
text = text.Replace("0x",String.Empty);
text = text.Replace("{", String.Empty);
text = text.Replace("}", String.Empty);
text = text.Replace("<", String.Empty);
text = text.Replace(">", String.Empty);
length = text.Length / 2;
data = new Byte[length];
for (int i = 0; i < length; i++)
{
try
{
data[i] = (Byte)Convert.ToInt32(text.Substring(i * 2, 2), 16);
}
catch (Exception)
{
return null;
}
}
return data;
}
public static string BytesToString(byte[] data)
{
string text = "";
try {
if (data != null)
{
if (BitConverter.IsLittleEndian)
{
//"Little-endian" means the most significant byte is on the right end of a word.
text = BitConverter.ToString(data);
}
else
{
// "Big-endian" means the most significant byte is on the left end of a word.
Array.Reverse(data);
text = BitConverter.ToString(data);
}
}
}
catch (Exception)
{
text = null;
}
return text;
}
}
}