private bool SetProductInformation(N2kFrame n2kFrame) { bool changed = false; lock (Lock) { if (!EqualBytesLongUnrolled(PiData, n2kFrame.Data)) { // We pass here field description and use NMEA2000 definition N2kVersion = BitConverter.ToUInt16(n2kFrame.Data, 0); ProductCode = BitConverter.ToUInt16(n2kFrame.Data, 2); ModelID = N2kASCIIField.ReadString(n2kFrame.Data, 4, 32); SwCode = N2kASCIIField.ReadString(n2kFrame.Data, 36, 32); ModelVersion = N2kASCIIField.ReadString(n2kFrame.Data, 68, 32); ModelSerialCode = N2kASCIIField.ReadString(n2kFrame.Data, 100, 32); CertificationLevel = n2kFrame.Data[132]; LoadEquivalency = n2kFrame.Data[133]; PiData = n2kFrame.Data.ToArray(); changed = true; } } return(changed); }
public PGNDefn[] GetPGNInfos() // Get an array of PGNDefn records, effectively converting from KeesDefinitions // into our own PGNDefn array { PGNDefn[] result = new PGNDefn[KeesPGNDefns.Count()]; int j = 0; foreach (KeesPGNDefn kPGN in KeesPGNDefns) { N2kField[] f = new N2kField[kPGN.Fields != null ? kPGN.Fields.Count() : 0]; if (kPGN.Fields != null) { int i = 0; foreach (KeesField kField in kPGN.Fields) { double scale; if (!double.TryParse(kField.Resolution, NumberStyles.Number, CultureInfo.InvariantCulture, out scale)) { scale = 1.0; } /* // Old method for working out scale... * switch (kField.Resolution) * { * case "0.1": * scale = 0.1; * break; * case "0.01": * scale = 0.01; * break; * case "0.001": * scale = 0.001; * break; * case "0.004": * scale = 0.004; * break; * case "1e-006": * scale = 1e-6; * break; * case "0.0001": * scale = 0.001; * break; * default: * scale = 1; * break; * } */ if ((kPGN.PGN == 130842) && (kField.Order == 17) && (kField.Name == "Spare")) { // AJM: I think this is probably an unsigned integer based on Description="0=unavailable" f[i++] = new N2kUIntField { Name = kField.Name, BitOffset = kField.BitOffset, BitLength = kField.BitLength, Description = kField.Description }; } else if (CultureInfo.InvariantCulture.CompareInfo.IndexOf(kField.Name, "Instance", CompareOptions.IgnoreCase) >= 0) { f[i++] = new N2kInstanceField { Name = kField.Name, BitOffset = kField.BitOffset, BitLength = kField.BitLength, Description = kField.Description }; } else if ((kField.Name == "SID")) { f[i++] = new N2kUIntField { FormatAs = FormatEnum.SID, Name = kField.Name, BitOffset = kField.BitOffset, BitLength = kField.BitLength, Description = kField.Description }; } else if ((kField.Name == "PGN")) { // We force all PGNBs to be UInt; Kees has one defined as an Integer in 59904, but no such 'Integer' defn in 59392 f[i++] = new N2kUIntField { Name = kField.Name, BitOffset = kField.BitOffset, BitLength = kField.BitLength, Description = kField.Description }; } else if ((kField.Name == "Speed") || (kField.Name == "SOG")) { //f[i++] = new SpeedField { DisplayName = kField.DisplayName, BitOffset = kField.BitOffset, BitLength = kField.BitLength, Description = kField.Description, Scale = scale }; f[i++] = new N2kUDblField { FormatAs = FormatEnum.Speed, Name = kField.Name, BitOffset = kField.BitOffset, BitLength = kField.BitLength, Description = kField.Description, Scale = scale }; } else if ((kField.Name == "Depth") || (kField.Name == "SOG")) { // This is probably unsigned based on FFFFFFFF appearing to mean 'unavailable' f[i++] = new N2kUDblField { FormatAs = FormatEnum.Length, Name = kField.Name, BitOffset = kField.BitOffset, BitLength = kField.BitLength, Description = kField.Description, Scale = scale }; } else { switch (kField.Type) { case null: if ((kField.Resolution == null) || (kField.Resolution == "")) { f[i++] = new N2kUIntField { Name = kField.Name, BitOffset = kField.BitOffset, BitLength = kField.BitLength, Description = kField.Description }; } else { f[i++] = new N2kDblField { Name = kField.Name, BitOffset = kField.BitOffset, BitLength = kField.BitLength, Description = kField.Description, Scale = scale }; } break; case "ASCII text": f[i++] = new N2kASCIIField { Name = kField.Name, BitOffset = kField.BitOffset, BitLength = kField.BitLength, Description = kField.Description }; break; case "Binary data": case "String with start/stop byte": // We need new type for this f[i++] = new N2kBinaryField { Name = kField.Name, BitOffset = kField.BitOffset, BitLength = kField.BitLength, Description = kField.Description }; break; case "Manufacturer code": f[i++] = new N2kBinaryField { Name = kField.Name, BitOffset = kField.BitOffset, BitLength = kField.BitLength, Description = kField.Description }; break; case "Date": //f[i++] = new DateField { DisplayName = kField.DisplayName, BitOffset = kField.BitOffset, BitLength = kField.BitLength, Description = kField.Description }; f[i++] = new N2kUIntField { FormatAs = FormatEnum.Date, Name = kField.Name, BitOffset = kField.BitOffset, BitLength = kField.BitLength, Description = kField.Description }; break; case "Degrees": // Degrees changed to angle on Kees? case "Angle": if (((kField.Resolution == "0.0001 rad") || (kField.Resolution == "0.0001"))) { // We convert the units from Radians to Degrees if (kField.Signed) { f[i++] = new N2kDblField { FormatAs = FormatEnum.Heading, Name = kField.Name, BitOffset = kField.BitOffset, BitLength = kField.BitLength, Description = kField.Description, Scale = 0.0001 * 180 / Math.PI }; } else { f[i++] = new N2kUDblField { FormatAs = FormatEnum.Heading, Name = kField.Name, BitOffset = kField.BitOffset, BitLength = kField.BitLength, Description = kField.Description, Scale = 0.0001 * 180 / Math.PI }; } } else { Console.WriteLine("Unknown Kees Degrees field data"); } break; case "IEEE Float": f[i++] = new N2kDblField { FormatAs = FormatEnum.Number, Name = kField.Name, BitOffset = kField.BitOffset, BitLength = 32, Description = kField.Description, Scale = scale }; break; case "Integer": f[i++] = new N2kIntField { Name = kField.Name, BitOffset = kField.BitOffset, BitLength = kField.BitLength, Description = kField.Description }; break; case "Latitude": if (kField.BitLength == 32) { // LatField f[i++] = new N2kDblField { FormatAs = FormatEnum.Latitude, Name = kField.Name, BitOffset = kField.BitOffset, BitLength = 32, Description = kField.Description, Scale = 1e-7 }; } else if (kField.BitLength == 64) { // LatField f[i++] = new N2kDblField { FormatAs = FormatEnum.Latitude, Name = kField.Name, BitOffset = kField.BitOffset, BitLength = 64, Description = kField.Description, Scale = 1e-16 }; } else { Console.WriteLine("Unknown Kees Latitude field data"); } break; case "Longitude": if (kField.BitLength == 32) { // LonField f[i++] = new N2kDblField { FormatAs = FormatEnum.Longitude, Name = kField.Name, BitOffset = kField.BitOffset, BitLength = 32, Description = kField.Description, Scale = 1e-7 }; } else if (kField.BitLength == 64) { // LonField f[i++] = new N2kDblField { FormatAs = FormatEnum.Longitude, Name = kField.Name, BitOffset = kField.BitOffset, BitLength = 64, Description = kField.Description, Scale = 1e-16 }; } else { Console.WriteLine("Unknown Kees Longitude field data"); } break; case "Lookup table": f[i++] = new N2kEnumField { Name = kField.Name, BitOffset = kField.BitOffset, BitLength = kField.BitLength, Description = kField.Description, EnumPairArray = kField.EnumPairArray }; break; case "Temperature": if ((kField.Units == null) || (kField.Units == "K")) { // We convert this to Celcius // f[i++] = new TemperatureField { DisplayName = kField.DisplayName, BitOffset = kField.BitOffset, BitLength = kField.BitLength, Description = kField.Description }; f[i++] = new N2kUDblField { FormatAs = FormatEnum.Temperature, Name = kField.Name, BitOffset = kField.BitOffset, BitLength = kField.BitLength, Description = kField.Description, Scale = 0.01, Offset = -273.15 }; } else { Console.WriteLine("Unknown Kees Temperature field data"); } break; case "Time": // TimeField f[i++] = new N2kUDblField { FormatAs = FormatEnum.Time, Name = kField.Name, BitOffset = kField.BitOffset, BitLength = kField.BitLength, Description = kField.Description, Scale = 0.0001 }; break; case "Speed": f[i++] = new N2kUDblField { FormatAs = FormatEnum.Speed, Name = kField.Name, BitOffset = kField.BitOffset, BitLength = kField.BitLength, Description = kField.Description, Scale = scale }; break; default: Console.WriteLine("Unknown Kees Field"); break; } } } } uint ByteLength = 0; foreach (N2kField field in f) { ByteLength = (uint)Math.Max(ByteLength, (int)(((uint)((uint)field.BitOffset + (uint)field.BitLength + 7)) >> 3)); } if (kPGN.PGN == 129029) { ByteLength = 43; // Add 3 extra bytes missing in Kees data } result[j++] = new PGNDefn { PGN = kPGN.PGN, Name = kPGN.Description, Description = "", ByteLength = ByteLength, Fields = f }; } return(result); }