private static int Serialize(LongFrame frame, BinaryWriter writer)
{
writer.Write(frame.Start);
writer.Write((byte)(frame.Data.Length + 3));
writer.Write((byte)(frame.Data.Length + 3));
writer.Write(frame.Start);
writer.Write((byte)frame.Control);
writer.Write(frame.Address);
writer.Write((byte)frame.ControlInformation);
writer.Write(frame.Data, 0, frame.Data.Length);
writer.Write(frame.Crc);
writer.Write(frame.Stop);
return(9 + frame.Data.Length);
}
internal static IReadOnlyCollection <DatapointValue> ParseDatapointValues(LongFrame frame)
{
if (frame == null)
{
throw new ArgumentException($"{nameof(frame)} cannot be null");
}
var list = new List <DatapointValue>();
var responseData = frame.UserData;
var numberOfDps = BitConverter.ToInt16(responseData.Slice(4, 2).ToArray().Reverse().ToArray());
if (numberOfDps == 0)
{
throw new RequestException((ErrorCodes)responseData.ToArray()[6]);
}
var pos = 6;
for (int i = 0; i < numberOfDps; i++)
{
var dpId = BitConverter.ToUInt16(ReverseSpan(responseData.Slice(pos, 2)));
var dpState = IndexOfSpan(responseData, pos + 2);
var dpLength = IndexOfSpan(responseData, pos + 3);
var dpValue = responseData.Slice(pos + 4, dpLength);
pos += 4 + dpLength;
var dp = new DatapointValue
{
Data = dpValue,
DatapointId = dpId,
Length = dpLength,
State = dpState
};
list.Add(dp);
}
return(list);
}
