public Block(byte[] Buffer, byte Company, ushort Position, ushort MaxSize)
{
byte Code = Buffer[Position];
foreach (Protocol.StructBlock CurrentBlock in Protocol.BlockList)
{
if ((CurrentBlock.Company == Company) && (CurrentBlock.Code == Code) && (CurrentBlock.Size <= MaxSize))
{
Crc = System.BitConverter.ToUInt16(Buffer, Position + CurrentBlock.Size - 2);
CorrectCrc = (Crc == CRC16.Compute(Buffer, Position, CurrentBlock.Size - 2));
if (!CorrectCrc)
{
if (Properties.Settings.Default.IgnoreCRC)
{
Console.WriteLine("CRC error in block");
}
else
{
throw new Exception("CRC error in block").SetCode(Constant.ExceptionCRC);
}
}
ChosenBlock = CurrentBlock;
if (Properties.Settings.Default.ShowBlock)
{
Console.WriteLine(ChosenBlock.Name);
}
Array.Copy(Buffer, Position, Data, 0, ChosenBlock.Size);
return;
}
}
throw new Exception("Unknown block");
}
public void EncodePrefix(byte[] Buffer)
{
// префикс
if (Receipt == null)
{
Operation = 0;
Size = (ushort)(Constant.PrefixSize + 2);
}
else
{
Operation = 1;
Size = (ushort)(Constant.PrefixSize + 2 + Receipt.Size + 3);
}
Size = (ushort)(Constant.PrefixSize + 2 + (Receipt != null ? (Receipt.Size + 3) : 0));
Buffer[0] = Id;
Array.Copy(System.Text.Encoding.ASCII.GetBytes(TextId), 0, Buffer, 1, 3);
Array.Copy(System.BitConverter.GetBytes(Size), 0, Buffer, 4, 2);
Buffer[6] = SoftVersion;
Buffer[7] = HardVersion;
Buffer[8] = Channel;
Array.Copy(System.BitConverter.GetBytes(Serial), 0, Buffer, 9, 4);
Buffer[13] = Company;
Buffer[14] = Device;
Array.Copy(System.BitConverter.GetBytes(Imei), 0, Buffer, 15, 8);
Array.Copy(System.BitConverter.GetBytes(Phone), 0, Buffer, 23, 4);
Buffer[27] = 0;
Buffer[28] = 0;
Buffer[29] = 0;
Buffer[30] = 0;
Buffer[31] = Operation;
Crc = CRC16.Compute(Buffer, 0, Size - 2);
Array.Copy(System.BitConverter.GetBytes(Crc), 0, Buffer, Size - 2, 2);
}