public void J2534SetFilters(ECUInterfaceSubtype profile)
{
// setup ecu filter (mimicking vediamo's behavior)
// convert the CBF's identifier integers to byte arrays
CanIdentifier = BitConverter.GetBytes(profile.GetComParameterValue(ECUInterfaceSubtype.ParamName.CP_REQUEST_CANIDENTIFIER));
RxCanIdentifier = BitConverter.GetBytes(profile.GetComParameterValue(ECUInterfaceSubtype.ParamName.CP_RESPONSE_CANIDENTIFIER));
// input byte data is in big-endian
Array.Reverse(CanIdentifier);
Array.Reverse(RxCanIdentifier);
MessageFilter filter = new MessageFilter();
// Apparently in the EIS series, the RX identifier is !! NOT !! CanIdentifier+8 per ISO15765, so the automatic config in J2534-Sharp will fail
// manually configure a ISO15765 filter
filter.FilterType = Filter.FLOW_CONTROL_FILTER;
filter.Mask = new byte[] { 0xFF, 0xFF, 0xFF, 0xFF };
filter.Pattern = RxCanIdentifier; // RX address, typically CanIdentifier+8, EXCEPT EIS
filter.FlowControl = CanIdentifier; // TX address
filter.TxFlags = TxFlag.ISO15765_FRAME_PAD;
ConnectionChannel.StartMsgFilter(filter);
}
public void J2534SetConfig(ECUInterfaceSubtype profile)
{
List <SConfig> sconfigList = new List <SConfig>();
List <Tuple <Parameter, ECUInterfaceSubtype.ParamName> > comPairs = new List <Tuple <Parameter, ECUInterfaceSubtype.ParamName> >();
comPairs.Add(new Tuple <Parameter, ECUInterfaceSubtype.ParamName>(Parameter.STMIN_TX, ECUInterfaceSubtype.ParamName.CP_STMIN_SUG));
comPairs.Add(new Tuple <Parameter, ECUInterfaceSubtype.ParamName>(Parameter.ISO15765_STMIN, ECUInterfaceSubtype.ParamName.CP_STMIN_SUG));
comPairs.Add(new Tuple <Parameter, ECUInterfaceSubtype.ParamName>(Parameter.ISO15765_BS, ECUInterfaceSubtype.ParamName.CP_BLOCKSIZE_SUG));
foreach (Tuple <Parameter, ECUInterfaceSubtype.ParamName> comPair in comPairs)
{
// apparently some are optional so we have to check for the presence of known comparams to configure the target j2534 device
if (profile.GetComParameterValue(comPair.Item2, out int comValue))
{
sconfigList.Add(new SConfig(comPair.Item1, comValue));
}
}
ConnectionChannel.SetConfig(sconfigList.ToArray());
}
// this (and the overloaded variant) will be an issue when operating in gateway mode;
// gateway mode will likely require the two separate can ids to be defined
public void SetCANIdentifiers(ECUInterfaceSubtype profile)
{
SetCANIdentifiers(profile.GetComParameterValue(ECUInterfaceSubtype.ParamName.CP_REQUEST_CANIDENTIFIER), profile.GetComParameterValue(ECUInterfaceSubtype.ParamName.CP_RESPONSE_CANIDENTIFIER));
}
public ConnectResponse Connect(ECUInterfaceSubtype profile, ECU ecuContext)
{
State = ConnectionState.PendingDeviceSelection;
EcuContext = ecuContext;
if (!IsSimulation())
{
if (ConnectionDevice is null)
{
Console.WriteLine("No interfaces available : please select a J2534 interface from the Connection menu");
return(ConnectResponse.NoValidInterface);
}
}
if (!profile.Qualifier.StartsWith("HSCAN"))
{
Console.WriteLine("Profile not supported: only HSCAN interfaces are supported.");
return(ConnectResponse.UnsupportedProtocol);
}
ConnectionProtocol = BaseProtocol.GetProtocol(profile.Qualifier);
// actually start fixing up the connection
if (ConnectionChannel != null)
{
ConnectionChannel.Dispose();
ConnectionChannel = null;
}
FriendlyProfileName = profile.Qualifier;
if (IsSimulation())
{
SimulationChannel = new Simulation.Simulated_CRD3();
Console.WriteLine("Connected (Simulation)");
}
else
{
try
{
// only ISO15765 is supported
// CAN_ID_BOTH : accepts 11-bit and 29-bit CAN messages
// baudrate is specified by the ECU
ConnectionChannel = ConnectionDevice.GetChannel(Protocol.ISO15765, (Baud)profile.GetComParameterValue(ECUInterfaceSubtype.ParamName.CP_BAUDRATE), ConnectFlag.CAN_ID_BOTH);
Console.WriteLine($"Target voltage : {ConnectionChannel.MeasureBatteryVoltage()} mV");
ConnectionChannel.DefaultTxFlag = TxFlag.ISO15765_FRAME_PAD;
SetCANIdentifiers(profile);
J2534SetFilters();
J2534SetConfig(profile);
J2534FlushBuffers();
}
catch (Exception e)
{
Console.WriteLine($"Connection failed with exception : {e.Message}");
return(ConnectResponse.FailedWithException);
}
// this chunk is repeated for AVDI devices; OpenPort2 does not care, Scanmatik refuses to continue if reconfigured without clearing prior filters
// wrap the second attempt in a separate try block, so that we can suppress any potential filter errors
if (DriverIsAVDI())
{
try
{
ConnectionChannel.ClearMsgFilters();
SetCANIdentifiers(profile);
J2534SetFilters();
J2534SetConfig(profile);
J2534FlushBuffers();
}
catch (Exception ex)
{
Console.WriteLine($"AVDI Second config exception suppressed: {ex.Message}");
}
}
}
State = ConnectionState.ChannelConnectedPendingEcuContact;
ConnectionUpdateState();
return(ConnectResponse.OK);
}
