/// <summary>
/// Sends the initial message to a station indicating that it should prepare to be reprogrammed.
/// </summary>
/// <param name="destinationStationID">The station to reprogram.
/// This can be <code>0</code>, which will instruct all stations to prepare for reprogramming.</param>
/// <param name="demandrelay">Indicates whether every station should relay the message</param>
/// <param name="token"></param>
/// <returns></returns>
public byte InitUploadToStation(byte destinationStationID, bool demandrelay)
{
using MemoryStream ms = new MemoryStream();
using BinaryWriter writer = new BinaryWriter(ms, Encoding.ASCII);
byte cmdByte = demandrelay ? (byte)('C' | 0x80) : (byte)'C';
var unID = _communicator.GetNextUniqueID();
writer.Write(cmdByte);
writer.Write(destinationStationID);
writer.Write(unID);
writer.Write((byte)'P'); //Programming
writer.Write((byte)'B'); //Begin
writer.Write((byte)PacketCount);
writer.Write((byte)PacketSize);
writer.Write((UInt16)CRC);
writer.Flush();
var data = AppendCommandCrc(destinationStationID, ms);
_communicator.Write(data);
return(unID);
}
