private Loader() { AppDomain.CurrentDomain.UnhandledException -= CurrentDomain_UnhandledException; AppDomain.CurrentDomain.UnhandledException += CurrentDomain_UnhandledException; j2534library = new J2534Extended(); var list = J2534Detect.ListDevices(); j2534Device = list.FirstOrDefault(d => d.Name == Config.Instance.DeviceName); if (j2534Device == null) { if (list.Count == 1) { j2534Device = list.Single(); } else { var sd = new SelectDevice(); if (sd.ShowDialog() == DialogResult.OK) { j2534Device = sd.Device; } } } j2534library.LoadLibrary(j2534Device); }
private Loader() { AppDomain.CurrentDomain.UnhandledException -= CurrentDomain_UnhandledException; AppDomain.CurrentDomain.UnhandledException += CurrentDomain_UnhandledException; j2534library = new J2534Extended(); var list = J2534Detect.ListDevices(); if (list.Count == 1) { j2534Device = list.Single(); } else { var sd = new SelectDevice(); if (sd.ShowDialog() == DialogResult.OK) { j2534Device = sd.Device; } else { return; } } j2534library.LoadLibrary(j2534Device); }
/* * * Example 2: * Use the J2534 protocol to send and receive a message (w/o error checking) * */ private void SendReceiveNoErrorChecking(object sender, EventArgs e) { J2534Extended passThru = new J2534Extended(); // Find all of the installed J2534 passthru devices List<J2534Device> availableJ2534Devices = J2534Detect.ListDevices(); J2534Device j2534Device; var sd = new SelectDevice(); if (sd.ShowDialog() == DialogResult.OK) { j2534Device = sd.Device; } else { return; } // We will always choose the first J2534 device in the list, if there are multiple devices // installed, you should do something more intelligent. passThru.LoadLibrary(j2534Device); // Attempt to open a communication link with the pass thru device int deviceId = 0; passThru.PassThruOpen(IntPtr.Zero, ref deviceId); // Open a new channel configured for ISO15765 (CAN) int channelId = 0; passThru.PassThruConnect(deviceId, ProtocolID.ISO15765, ConnectFlag.NONE, BaudRate.ISO15765, ref channelId); // Set up a message filter to watch for response messages int filterId = 0; PassThruMsg maskMsg = new PassThruMsg( ProtocolID.ISO15765, TxFlag.ISO15765_FRAME_PAD, new byte[] { 0xff, 0xff, 0xff, 0xff }); PassThruMsg patternMsg = new PassThruMsg( ProtocolID.ISO15765, TxFlag.ISO15765_FRAME_PAD, new byte[] { 0x00, 0x00, 0x07, 0xE8 }); PassThruMsg flowControlMsg = new PassThruMsg( ProtocolID.ISO15765, TxFlag.ISO15765_FRAME_PAD, new byte[] { 0x00, 0x00, 0x07, 0xE0 }); IntPtr maskMsgPtr = maskMsg.ToIntPtr(); IntPtr patternMsgPtr = patternMsg.ToIntPtr(); IntPtr flowControlMsgPtr = flowControlMsg.ToIntPtr(); passThru.PassThruStartMsgFilter(channelId, FilterType.FLOW_CONTROL_FILTER, maskMsgPtr, patternMsgPtr, flowControlMsgPtr, ref filterId); // Clear out the response buffer so we know we're getting the freshest possible data passThru.ClearRxBuffer(channelId); // Finally we can send the message! PassThruMsg txMsg = new PassThruMsg( ProtocolID.ISO15765, TxFlag.ISO15765_FRAME_PAD, new byte[] { 0x00, 0x00, 0x07, 0xdf, 0x01, 0x00 }); var txMsgPtr = txMsg.ToIntPtr(); int numMsgs = 1; passThru.PassThruWriteMsgs(channelId, txMsgPtr, ref numMsgs, 50); // Read messages in a loop until we either timeout or we receive data numMsgs = 1; IntPtr rxMsgs = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(PassThruMsg)) * numMsgs); J2534Err status = J2534Err.STATUS_NOERROR; while (J2534Err.STATUS_NOERROR == status) status = passThru.PassThruReadMsgs(channelId, rxMsgs, ref numMsgs, 200); // If we received data, we want to extract the data of interest. I'm removing the reflection of the transmitted message. if ((J2534Err.ERR_BUFFER_EMPTY == status || J2534Err.ERR_TIMEOUT == status) && numMsgs > 0) { foreach (PassThruMsg msg in rxMsgs.AsList<PassThruMsg>(numMsgs)) { // // // Now do something with the data! // // } } // Disconnect this channel passThru.PassThruDisconnect(channelId); // When we are done with the device, we can free the library. passThru.FreeLibrary(); }