public async Task <bool> SendStatusReq()
{
byte[] packet = new byte[64]; //Create packet which will be fixed 64 bytes long
//Report Header
packet[0] = 1; // Report ID fixed 1;
packet[1] = 0x13; // First Packet with start and end
packet[2] = 9; // Data length
//Transfer Header
packet[3] = 0; // Version fixed 0
packet[4] = 8; // Header length
packet[5] = 0; // Body length
packet[6] = 1; // Body length
packet[7] = 0x0F; // Protocol ID
packet[8] = 0x01; // Service Identifier
packet[9] = 0; // Manufacturer Code
packet[10] = 0; // Manufacturer Code
// Body
packet[11] = 3; // Bus Status
await DeviceKnx.InitializeAsync();
await DeviceKnx.WriteAsync(packet);
DeviceKnx.Close();
return(true);
}
//TODO Adresse der Schnitstelle schreibt man im Speicher an Adresse 279
public async Task Connect()
{
byte[] packet = new byte[64]; //Create packet which will be fixed 64 bytes long
//Report Header
packet[0] = 1; //Report Id (fixed)
packet[1] = 0x13; // First Packet with start and end
packet[2] = 9; // Data length
//Transfer Header
packet[3] = 0; // Version fixed 0
packet[4] = 8; // Header length
packet[5] = 0; // Body length
packet[6] = 1; // Body length
packet[7] = 0x0F; // Protocol ID
packet[8] = 0x01; // Service Identifier
packet[9] = 0; // Manufacturer Code
packet[10] = 0; // Manufacturer Code
// Body
packet[11] = 1; // Supported Emis
bool isInited = DeviceKnx.IsInitialized;
await DeviceKnx.InitializeAsync();
CancellationTokenSource source = new CancellationTokenSource(1000);
TransferResult read = await DeviceKnx.WriteAndReadAsync(packet, source.Token);
BitArray emis = new BitArray(new byte[] { read.Data[13] });
byte setEmi = 0;
if (emis.Get(2))
{
Debug.WriteLine("USB: Verwende cEmi");
CurrentType = ProtocolTypes.cEmi;
}
else if (emis.Get(1))
{
Debug.WriteLine("USB: Verwende Emi2");
CurrentType = ProtocolTypes.Emi2;
}
else if (emis.Get(0))
{
CurrentType = ProtocolTypes.Emi1;
Debug.WriteLine("USB: Verwende Emi1");
}
else
{
Debug.WriteLine("USB: unterstützt kein Emi1/Emi2/cEmi");
}
packet[6] = 0x02;
packet[8] = 0x03; //Device Feature Set
packet[11] = 0x05; //Set Emi Type
packet[12] = Convert.ToByte(CurrentType); //Selected Emi type
source = new CancellationTokenSource(1000);
await DeviceKnx.WriteAsync(packet, source.Token);
packet[6] = 0x01;
packet[8] = 0x01; //Device Feature Get
packet[11] = 0x03; //Bus Status
packet[12] = 0x00;
source = new CancellationTokenSource(1000);
read = await DeviceKnx.WriteAndReadAsync(packet, source.Token);
int status = read.Data[12];
if (status == 0)
{
throw new Exception("Schnittstelle hat keine Verbindung zum Bus.");
}
packet[2] = 0x0c;
packet[6] = 0x04; //Body length
packet[7] = 0x01; //Tunnel
packet[8] = Convert.ToByte(CurrentType); //Selected Emi
packet[11] = 0x4c; //Memory Read
packet[12] = 0x02; //Length
packet[13] = 0x01; //Address High
packet[14] = 0x17; //Address Low
source = new CancellationTokenSource(1000);
read = await DeviceKnx.WriteAndReadAsync(packet, source.Token);
PhysicalAddress = UnicastAddress.FromByteArray(new byte[] { read.Data[15], read.Data[16] });
if (source.IsCancellationRequested)
{
DeviceKnx.Close();
throw new Exception("Schnittstelle antwortet nicht.");
}
IsConnected = true;
ConnectionChanged?.Invoke(true);
ProcessSendMessages();
}
