private void btnStartStop_Click(object sender, EventArgs e)
{
if (!CanTool.IsCommunication)
{
return;
}
if (stage == scanStage.pause)
{
stage = scanStage.waitingForCanSleep;
// id range
idStart = numIdFrom.Value;
idStop = numIdTo.Value;
idCurrent = idStart;
byte[] d = Tools.hexStringToByteArray(tbData.Text);
if (d == null || d.Length == 0 || d.Length > canMessage.maxDataBytesNum())
{
return;
}
// int only
messageCountToSend = Convert.ToInt32(tbCount.Text, 10);
butSleepTmo = Convert.ToInt32(tbBusSleep.Text, 10);
idCheckTmo = Convert.ToInt32(tbIdCheck.Text, 10);
message = new canMessage2((int)idCurrent, rb29BitId.Checked, d, 0);
// trace
if (!string.IsNullOrEmpty(tbTrace.Text))
{
trace(Environment.NewLine);
}
trace(Environment.NewLine + string.Format("Scan from {0} to {1}",
canMessage.getCanIdString((int)idStart, rb29BitId.Checked),
canMessage.getCanIdString((int)idStop, rb29BitId.Checked)));
trace(string.Format("DLC = {0}, Data = {1}",
message.Id.GetDlcAsString(),
message.GetDataString(" ")));
trace("Waiting until the CAN bus is sleeping");
worker = new Thread(onWorker);
worker.Name = "Wrk";
worker.Start();
}
else
{
// stop
stage = scanStage.pause;
trace("Aborted");
}
guiStartStop();
}
private void onWorker()
{
// we're using this time for can sleep detection
DateTime dtScanStarted = DateTime.Now;
// and this one for trace only
DateTime dtTrace = DateTime.Now;
while (stage != scanStage.pause)
{
if (stage == scanStage.waitingForCanSleep)
{
var diffInSeconds = (DateTime.Now - dtLastCanMsg).TotalMilliseconds;
if (diffInSeconds > butSleepTmo)
{
stage = scanStage.scanning;
dtScanStarted = DateTime.Now;
continue;
}
Thread.Sleep(500);
}
else if (stage == scanStage.scanning)
{
// send
CanTool.SendCanMessage(message, messageCountToSend);
trace(idCurrent);
// wait
Thread.Sleep(messageCountToSend + messageCountToSend / 2);
// check date time
if (dtScanStarted < dtLastCanMsg)
{
trace("A new CAN message has received");
trace("Waiting untill the CAN bus is sleeping again");
// a message has received
stage = scanStage.waitingForCanSleepAfterScanning;
continue;
}
// update
if (idCurrent == idStop)
{
stage = scanStage.pause;
trace("Failed. The low border has reached.");
continue;
}
else
{
idCurrent = idStart > idStop ? idCurrent - 1 : idCurrent + 1;
//message.Id.Id = (int)idCurrent;
message = new canMessage2((int)idCurrent, message.Id.Is29bit, message.Data);
}
}
else if (stage == scanStage.waitingForCanSleepAfterScanning)
{
var diffInSeconds = (DateTime.Now - dtLastCanMsg).TotalMilliseconds;
if (diffInSeconds > butSleepTmo)
{
stage = scanStage.checking;
dtScanStarted = DateTime.Now;
trace("Can Bus is sleeping again");
continue;
}
Thread.Sleep(500);
}
else if (stage == scanStage.checking)
{
// send data in the reverse direction
CanTool.SendCanMessage(message, messageCountToSend);
trace(idCurrent);
// wait for idCheckTmo msec
trace("Waiting for " + idCheckTmo.ToString() + " msec");
Thread.Sleep(idCheckTmo);
// check date time
if (dtScanStarted < dtLastCanMsg)
{
// a message has received
trace("Done");
trace(string.Format("Activation ID is: {0}", message.Id.GetIdAsString()));
stage = scanStage.pause;
continue;
}
idCurrent = idStart > idStop ? idCurrent + 1 : idCurrent - 1;
//message.Id = (int)idCurrent;
message = new canMessage2((int)idCurrent, message.Id.Is29bit, message.Data);
}
}
double elapsed = (DateTime.Now - dtTrace).TotalMilliseconds / 1000.0d;;
string sElapsed = elapsed.ToString("0.000");
trace(string.Format("Elapsed Time: {0} sec", sElapsed));
// end of while
guiStartStop();
}
