Problems with SpeedProfile and WaitHandles

[Dawid Mostert]

Hi,

I’m trying to get a couple of very simple examples to work with my EV3.

The following routine works, except when I change
motorWaitHandle = motorA.SpeedProfile(50, 200, 1600, 200,true);

to
motorWaitHandle = motorA.SpeedProfile(50, 200, 160, 200,true);

the WaitOne() call never then never returns.

public static void Main (string[] args)
{
  Motor motorA = new Motor (MotorPort.OutA);
  WaitHandle motorWaitHandle;
  motorA.Off();
  LcdConsole.WriteLine("Speed: " + motorA.GetSpeed() );
  motorA.ResetTacho();
  motorWaitHandle =  motorA.SpeedProfile(50, 200, 1600, 200,true);
  motorWaitHandle.WaitOne();
  LcdConsole.WriteLine("Done moving motor");
  LcdConsole.WriteLine("Position A: " + motorA.GetTachoCount());

  Thread.Sleep(500);
  motorA.ResetTacho();
  motorWaitHandle =  motorA.SpeedProfile(-50, 200, 160, 200,true);
  motorWaitHandle.WaitOne();
  LcdConsole.WriteLine("Done moving both motors");
  motorA.Off();
}

(Taken from MotorSamples)

Do I need to build delays into my code?

Thanks,
Dawid

[Anders Søborg]

Hi there

This problem has already been reported and fixed. However it has not been officially released. But you can download a precompiled DLL of the master branch from my ftp server. An officially will be created once I get the time to do some more testing (which should be some time this coming week).

/Anders

[Dawid Mostert]

Thanks Anders!

Works like a charm.

Where is the best place to look for reported problems? This forum or GitHub?

Dawid

[Dawid Mostert]

Sorry Anders,

Seems I Spoke too soon 🙁

Still not working in all instances…

This does not work:
var handle = motor.SpeedProfile(50, 100, 700, 100, true);

Regards,
Dawid

[Anders Søborg]

Hi there

I will look into this…. in the meantime simply ignore the waitone on the waithandle like shown below.

motorWaitHandle =  motorA.SpeedProfile(-50, 100, 700, 100,true);
 //motorWaitHandle.WaitOne();
 System.Threading.Thread.Sleep(1000);
 motorA.Brake();

/Anders

[Anders Søborg]

Hi there

Just upload a new dll to my ftp server

Everything should be working now….

/Anders

[Author]

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