public async Task Start(string portName, int baudRate, CancellationTokenSource cts)
{
Debug.WriteLine("Element:CommunicationTask: Start: port: {0} baudRate: {1}", portName, baudRate);
//serialPort = new CommunicationChannelBT();
serialChannel = new CommunicationChannelSerial(cts)
{
Name = portName,
BaudRate = (uint)baudRate
};
try
{
Debug.WriteLine("IP: Element:CommunicationTask: serialPort " + portName + " opening...");
await serialChannel.Open();
Debug.WriteLine("OK: Element:CommunicationTask: serialPort " + portName + " opened");
//await Task.Delay(2000);
// Notify users to initialize any devices
// they have before we start processing commands:
element.StartingCommunication(serialChannel);
running = true;
ClearJobQueues();
Task workerTask = new Task(() => ThreadProc(cts.Token), cts.Token);
workerTask.Start();
Debug.WriteLine("IP: Element:CommunicationTask: trying to synch up with the board - resetting...");
// try to synch up with the board
string resp = EnqueueCommJobAndWait(Priority.High, "reset");
//await Task.Delay(3000); // let other processes continue
// This HAS TO BE HERE...Since it takes the Element about a second to boot up
// using the new Tiny Bootloader...
//Thread.Sleep(1000);
await Task.Delay(2000);
// Clear receive buffer out, since the bootloader can send
// some junk characters, which might hose subsequent command responses:
serialChannel.DiscardInBuffer();
stopWatch.Start();
}
catch (AggregateException aexc)
{
throw new CommunicationException("CommunicationTask: Could not start communication");
}
catch (Exception exc)
{
Debug.WriteLine("Error: Element:CommunicationTask: exception while opening serial port " + portName + " : " + exc);
//await Stop();
//throw new CommunicationException("CommunicationTask: Could not start communication");
throw;
}
}
public async Task Stop()
{
running = false;
stopWatch.Stop();
//commandsBufferBlock.Complete();
actionBlock.Complete();
Flush();
await Task.Delay(100);
// Notify users to clean up any devices
// connected to the serial port if need be, before closing it.
arduinoBrick.StoppingCommunication(serialChannel);
if (serialChannel != null)
{
serialChannel.DiscardInBuffer();
serialChannel.Close();
serialChannel = null;
}
}
public async Task Start(string portName, int baudRate, CancellationTokenSource cts)
{
Debug.WriteLine("Element:CommunicationTask: Start: port: {0} baudRate: {1}", portName, baudRate);
//serialPort = new CommunicationChannelBT();
serialChannel = new CommunicationChannelSerial(cts)
{
Name = portName,
BaudRate = (uint)baudRate
};
try
{
Debug.WriteLine("IP: Element:CommunicationTask: serialPort " + portName + " opening...");
await serialChannel.Open();
Debug.WriteLine("OK: Element:CommunicationTask: serialPort " + portName + " opened");
//await Task.Delay(2000);
// Notify users to initialize any devices
// they have before we start processing commands:
element.StartingCommunication(serialChannel);
running = true;
ClearJobQueues();
Task workerTask = new Task(() => ThreadProc(cts.Token), cts.Token);
workerTask.Start();
Debug.WriteLine("IP: Element:CommunicationTask: trying to synch up with the board - resetting...");
// try to synch up with the board
string resp = EnqueueCommJobAndWait(Priority.High, "reset");
//await Task.Delay(3000); // let other processes continue
// This HAS TO BE HERE...Since it takes the Element about a second to boot up
// using the new Tiny Bootloader...
//Thread.Sleep(1000);
await Task.Delay(2000);
// Clear receive buffer out, since the bootloader can send
// some junk characters, which might hose subsequent command responses:
serialChannel.DiscardInBuffer();
stopWatch.Start();
}
catch (AggregateException aexc)
{
throw new CommunicationException("CommunicationTask: Could not start communication");
}
catch (Exception exc)
{
Debug.WriteLine("Error: Element:CommunicationTask: exception while opening serial port " + portName + " : " + exc);
//await Stop();
//throw new CommunicationException("CommunicationTask: Could not start communication");
throw;
}
}
