public static bool CheckCommuPack(byte[] RxPack, int Length)
{
byte[] buf = new byte[1040];
if (RxPack[0] != (byte)83 || RxPack[Length - 1] != (byte)64 || (RxPack[2] != (byte)0 || (int)RxPack[3] != Length))
{
return(false);
}
Buffer.BlockCopy((Array)RxPack, 1, (Array)buf, 0, Length - 1);
int num = (int)Crc16.Crc16Calculate((ushort)0, buf, (ushort)Convert.ToByte(Length - 4));
return((int)Convert.ToByte(num % 256) == (int)buf[Length - 4] && (int)Convert.ToByte(num / 256) == (int)buf[Length - 3]);
}
public static int CreateCommuPack(
byte[] Dst,
byte[] Src,
byte ObjId,
byte PackNo,
byte Length)
{
byte[] buf = new byte[264];
buf[0] = PackNo;
buf[1] = ObjId;
buf[2] = Convert.ToByte((int)Length + 7);
for (int index = 0; index < (int)Length; ++index)
{
buf[3 + index] = Src[index];
}
int num = (int)Crc16.Crc16Calculate((ushort)0, buf, (ushort)Convert.ToByte((int)Length + 3));
buf.CopyTo((Array)Dst, 1);
Dst[0] = Convert.ToByte('S');
Dst[4 + (int)Length] = Convert.ToByte(num % 256);
Dst[4 + (int)Length + 1] = Convert.ToByte(num / 256);
Dst[4 + (int)Length + 2] = Convert.ToByte('@');
return(4 + (int)Length + 3);
}
