public static bool GenericLinReceive(CanData can)
{
Canlib.canStatus status;
// status = Canlib.canRead(GenericCanBus.CAN_handle0, out can.id, can.msg, out can.dlc, out can.flags, out can.time);
status = Canlib.canRead(can.handle, out can.id, can.msg, out can.dlc, out can.flags, out can.time);
//Debug.WriteLine("InRead");
//MainWindow.ErrorDisplayString(CommonUtils.DisplayMsg(can));
if (status != Canlib.canStatus.canOK)
{
//Debug.WriteLine("CanReceive -- false");
return(false);
}
else
{
//Debug.WriteLine("CanReceive -- true");
return(true);
}
}
} // End GenericCanTransmitMultiple
// CAN Receive
public static bool CanReceive(CanData can)
{
// string hardwareString0 = can.hardware.Replace(" ", "");
// string[] msgOutput = hardwareString0.Split(';');
// to pull the can.handle from the hardware selection
can.handle = BusInterface.ReturnHandle(can.hardware);
//MainWindow.ErrorDisplayString("can.handle: " + can.handle + " ; msg: " + msgOutput[3]);
// Kvaser CAN Read
Array.Clear(can.msg, 0, 8);
can.status = Canlib.canRead(can.handle, out can.id, can.msg, out can.dlc, out can.flags, out can.time);
// MainWindow.ErrorDisplayString("can.handle in receive: " + can.handle);
CheckFlags(can);
if (can.status != Canlib.canStatus.canOK)
{
return(false);
}
else
{
return(true);
}
} // End Read
private void initLoop()
{
//ActiveCanDriver = Static_Utils.ActiveCANDriver;
//if (ActiveCanDriver==Common.Consts.CAN_DRIVER_KVASER) {
// if (runningKvaser) return;
// runningKvaser = true;
int faultedPackage = 0;
int serialPortReadBytes = 0;
Task.Factory.StartNew(
action: () => {
while (true)
{
if (ActiveCanDriver == Common.Consts.CAN_DRIVER_KVASER)
{
if (hasChangeInNodesList)
{
lock (LockCanIdsDic) {
dic_Loop_CanChanels = dic_CanChanels.ToDictionary(x => x.Key, x => x.Value);
hasChangeInNodesList = false;
}
}
if (_writePackage.Count != 0 && sw.ElapsedMilliseconds >= Globals.sleepForRefresh)
{
lock (SyncRoot) {
if (_writePackage[0] == null)
{
Canlib.canFlushReceiveQueue(CANHandle);
}
else if /*_writepackage[0] reference a nodeid that does't exist*/ (
!dic_Loop_CanChanels.ContainsKey(_writePackage[0].getInt(8)))
{
if (faultedPackage > 5)
{
_writePackage.RemoveAt(0);
faultedPackage = 0;
continue;
}
else
{
faultedPackage++;
Thread.Sleep(5);
continue;
}
}
else
{
var pckt = _writePackage[0].Where((s, i) => i < 8).ToArray();
Canlib.canWrite(
handle: dic_Loop_CanChanels[_writePackage[0].getInt(8)],
id: FrequencyManager.MAGIC_NUMBER,
msg: pckt,
dlc: 8,
/*size of array*/
flag: 2);
}
sw = Stopwatch.StartNew();
_writePackage.RemoveAt(0);
}
}
foreach (var nodeId_x_handle in dic_Loop_CanChanels)
{
byte[] msgReceive = new byte[16];
int msgReceiveSize = 8;
int flag = 2;
int _id = 0; //(idArr[0] << 8) + (idArr[1]);
long time = 100;
Canlib.canStatus err;
//err = Canlib.canRead(CANHandle, out _id, msgReceive, out msgReceiveSize, out flag, out time);
err = Canlib.canRead(
nodeId_x_handle.Value,
out _id,
msgReceive,
out msgReceiveSize,
out flag,
out time);
if (err != Canlib.canStatus.canOK)
{
if (_writePackage.Count == 0)
{
Thread.Sleep(10);
}
continue;
}
/*let everyone know wich nodeId sent this message*/
msgReceive.putInt(12, nodeId_x_handle.Key);
innerTranmit(msgReceive);
//Debug.WriteLine(msgReceive.ToArray());
}
}
else if (ActiveCanDriver == Common.Consts.INTERFACE_RS232)
{
if (_writePackage.Count != 0 && sw.ElapsedMilliseconds >= Globals.sleepForRefresh)
{
lock (SyncRoot) {
}
}
}
}
});
//} else if (ActiveCanDriver == Common.Consts.INTERFACE_RS232) { }
}
/// <summary>
/// CAN读取接收的一帧数据
/// </summary>
/// <param name="id"></param>
/// <param name="dat"></param>
/// <param name="dlc"></param>
/// <param name="time"></param>
/// <returns></returns>
public bool ReadData(out int id, ref byte[] dat, out int dlc, out long time)
{
int flag = 0;
return(Canlib.canRead(canHandler, out id, dat, out dlc, out flag, out time) == Canlib.canStatus.canOK);
}
/*
* Looks for messages and sends them to the output box.
*/
void Receiver_MessageHandlerLoop(object sender, DoWorkEventArgs e)
{
BackgroundWorker worker = sender as BackgroundWorker;
Canlib.canStatus status = Canlib.canStatus.canERR_NOMSG;
bool noError = true;
int errorFrameCount = 0;
//Create a Windows event handle
Object winHandle = new IntPtr(-1);
status = Canlib.canIoCtl(readHandle, Canlib.canIOCTL_GET_EVENTHANDLE, ref winHandle);
if (status != Canlib.canStatus.canOK)
{
worker.ReportProgress((int)ReceiverReport.ERROR_STOP, status);
noError = false;
}
status = Canlib.canAccept(readHandle, 0x610, Canlib.canFILTER_SET_CODE_STD);
if (status != Canlib.canStatus.canOK)
{
worker.ReportProgress((int)ReceiverReport.ERROR_STOP, status);
noError = false;
}
status = Canlib.canAccept(readHandle, 0xFFE, Canlib.canFILTER_SET_MASK_STD);
if (status != Canlib.canStatus.canOK)
{
worker.ReportProgress((int)ReceiverReport.ERROR_STOP, status);
noError = false;
}
WaitHandle waitHandle = (WaitHandle) new CanlibWaitEvent(winHandle);
while (noError && isReaderBusOn && readHandle >= 0)
{
//Wait for 25ms for an event to occur on the channel (BBMS CAN communication period: 25ms)
bool eventHappened = waitHandle.WaitOne(25);
if (!eventHappened)
{
continue;
}
int id;
byte[] data = new byte[Defined.MAX_DLC];
int dlc;
int flags;
long time;
string msgLog;
//To attain the initial msg
status = Canlib.canRead(readHandle, out id, data, out dlc, out flags, out time);
//This while loop is to repeat canRead() until the msg boxes for readHandle becomes exhausted.
while (status == Canlib.canStatus.canOK)
{
if ((flags & Canlib.canMSG_ERROR_FRAME) == Canlib.canMSG_ERROR_FRAME)
{
msgLog = "***ERROR FRAME RECEIVED*** Count = " + (++errorFrameCount);
if (errorFrameCount > Defined.ERROR_FRAME_ENDURANCE_COUNT_LIMIT)
{
worker.ReportProgress((int)ReceiverReport.REPORT_RUNNING, "Too many error frames received. Bus off.");
break;
}
}
else
{
msgLog = String.Format("0x{0:x3} {1} {2:x2} {3:x2} {4:x2} {5:x2} {6:x2} {7:x2} {8:x2} {9:x2} @{10}",
id, dlc, data[0], data[1], data[2], data[3], data[4],
data[5], data[6], data[7], time);
}
//Sends the message to the ProcessMessage method
worker.ReportProgress((int)ReceiverReport.REPORT_RUNNING, "[Rx] " + msgLog);
//Result status of the following canRead() will finish the while loop if status!=Canlib.canStatus.canOK
status = Canlib.canRead(readHandle, out id, data, out dlc, out flags, out time);
}
//If the reason to exit the while loop of canRead() was not canERR_NOMSG, an error is expected.
if (status != Canlib.canStatus.canERR_NOMSG)
{
//Sends the error status to the ProcessMessage method and breaks the loop
worker.ReportProgress((int)ReceiverReport.ERROR_STOP, status);
noError = false;
}
}
if (isReaderBusOn)
{
worker.ReportProgress((int)ReceiverReport.FORCED_STOP, "Force Bus Off");
}
}