behavior of stall Async timer

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• Async timer events

  I use CVI 2009 and TestStand 4.1.1 to test products.

  I create an Async timer when I call a function of Teststand that propelled to the top of the object to measure.

  My timer seems to start OK, but there are only 3 events prior to the recall of the timer Tick is no longer called.

  What could cause the timer events stop?

  Thank you

  1 take the timer.

  2, reminder timer is blocked or delayed and no return for timer events are queued up and not be served.

  3, an another async timer was created before the one you use for power USE up so this timer is a priority and is occupied by the management of reminders in your reminder of power queue USE is getting hungry.

  4 Async timer thread cannot get scheduled.

  Recently, I've solved a problem scheduling async timer using an indicator LED on my GUI and he put on during my async timer reminder entry and turned off when I left.  I made sure that he stayed at least 200 ms if I could see it.   Main thread set the light / stop by a global since you can not manipulate the UI directly from the asynchronous callback.

• No graduation async timer

  Hello.  I have a program that is running multiple threads.  When the user clicks the start test button, a new thread is created to run all data acquisition and task processing.  Part of the task of data acquisition is to acquire an analogue to the digital map data.  To start the acquisition, a function is called from the map SDK.  This allows relaxation on the Board with a callback that is called when the map is triggered.  I have included in my code, a timeout by using an asynchronous timer so that if a trigger is not received with a set amount of time, the acquisition is cancelled.  The problem I have is that no clock is received by the async timer.  The basic layout of the code is as follows:

  RET = dataAqFuncStart();

  If (ret = NO_ERROR)

  {

  SetanalogTrigTimoutFlag (TRIG_TIMEOUT_CLEAR);

  timerId = NewAsyncTimer (ANALOG_IN_TRIG_TIMEOUT, 1, 1,
  DaqAnalogInTimer, NULL);

  }

  If (ret = NO_ERROR)

  {

  While ((GetdaqAnalogInFlag() == 0) & GetanalogTrigTimoutFlag() == TRIG_TIMEOUT_CLEAR)

  {

  }

  }

  Within the callback function for the data acquisition card, the daqAnalogInFlag is set if the map is triggered.  In the async timer, analogTrigTimeoutFlag is set to graduation of timer.  I never really get a graduation of timer if so my code is in the while loop.  In the context of debugging, I was followed by system resources which showed that the two sons of my computer was working 100%.  I placed a delay of 200ms in the while loop and this has reduced the CPU activity of approximately 3/4.  I guess it's because the code was executed the while loop getting frantically two flags.  Another thing, I tried as part of debugging placed 'GetAsyncTimerAttribute (timerId, ASYNC_ATTR_TIMER_TIME & timerTime)' in the while loop after the deadline.  On the first time through the while loop, the value timerTime has been to 0,0.  On the second occasion, the time is 5006.598 which obviously incorrect as only about 200ms has passed.  The last observation was that there is a call of the event to the reminder timer when I close the thread that was created at the beginning of the test.  This indicates that the timer has been created.

  Are there other methods of debugging I can use or can someone point me in the direction of an answer?

  Thank you

  Do you really need a timer that is asynchronous to get the timeout? You could just check the value of the Timer (in the loop and exit) on a specified time? Is something like this:

  if (ret == NO_ERROR)
  {
      tini = Timer ();
      while ((GetdaqAnalogInFlag() == 0)  && (Timer () - tini < 1.0))
      {
         // Some code
      }
      // Cleanup code
  }
  

  Async timers are executed in their own separate thread: I don't know what can happen all by creating an asynchronous timer in one thread other than the main.

• Abnormal behavior observed in real-time executable.

  Hello

  I have an interesting problem. I have developed an embedded application of Real-time/FPGA for cRIO 9024 and come across a problem that I don't understand. I work FPGA and RT of top-level and subVIs, proven individually and together when it is run interactively. When I create and deploy an executable in real-time like start, however, the behavior changes. I posted the code below, which I'll explain briefly:

  I have a state machine with 5 States architecture. "Initialize" and "Shut Down" are exactly meet once whenever the device is reset, and the cycle between them is wait > pre-test > wait > run the Test and repeat as many times as desired. Measures are taken by FPGA and past in real-time by DMA FIFO and are then recorded to the TDMS file by the real time. Everything else is just interface.

  The problem comes from the first time, the program enters the Test case to run. The FPGA send measurements as usual, and they are stored in a growing table updated buffering in the fixed-point shift register shown below.

  

  Run interactively, this method successfully bed, buffers, sorts and writes all data in the file. However, in time real executable, only the data collected in the first round (147 items total, as it is initialized by the whole shift register) are saved, the rest seems remainsin a buffer? before calling the following function TDMS write, is that in the case before the next test.

  I'm unable to debug the executable file in real time, probably because of the FPGA reference or some other schema components. I tried to replace the pad with a FIFO in real-time, a variable shared with RT FIFO active and tried to write inside the loop. The FIFO are not improving the situation, and when writing inside the loop, the loop does not run quite fast to stand.

  The problem does not exist when I run the VI interactively from my computer, only when I try to deploy all of the embedded, any application that works (as far as I know) except this one place.

  Any ideas to solve, or workarounds?

  Ryan

  Technical support helped me to resolve the problem, the early termination of loop caused loop condition, although I still don't understand why the behavior was different as an executable file, because the condition of the loop has worked in interactive mode, so if someone has any ideas as to the why, I would still like to know.

• Async timer slows operation

  Having already used asynchronous timers to solve another problem I had, I am now looking at an issue that has left me speechless

  Here is a code snippet that took an applied asynchronous timer

  int CVICALLBACK ParentEvent (int reserved, control int, int event, void * callbackData, int eventData1, int eventData2)
  
  {
  
  	public static int iInfoFlag = 1;
  
  If the Com Timer event took place then:
  
  	If (event is EVENT_TIMER_TICK)
  
  	{
  
  		SetAsyncTimerAttribute (control, ASYNC_ATTR_ENABLED, 0);
  First of all, changed the configuration of the probe?
  
  		If (iSondeConfigure_HasChanged() is YES)
  
  		Re-initialize screens etc, if true
  
  		InitialiseSondeSystems (iFloatingPanels);
  Get data from the probe
  
  		If (ProgStatus.bComTimerEvent is TRUE)
  
  		{
  
  			CompactDataControl (hParentPanel, iInfoFlag, & ProgStatus, NULL);
  
  		}
  
  		If Com events are disabled then define Info indicator following data probe
  
  		acquisition sequence
  
  		If (ProgStatus.iComEnable! = ACTIVE)
  
  			iInfoFlag = 1;
  SetAsyncTimerAttribute (ParentTimer, ASYNC_ATTR_ENABLED, 1);
  
  	}
  Return (0);
  
  }
  
  

  This routine was previously managed by a conventional programmer, but as they sit at the bottom of the pile when it comes to planning, as soon as the interface has been manipluated it silent. In each case the timer is set to 0.1 seconds, and if the bComTimerEvent flag is set to true, which is controlled by another (currently traditional timer) he goes and grabs the data from an external source. Using conventional timers, I can clock this timer 'data capture' quite happily at 0.25 seconds. However with the code, it will not catch data faster that 1.5 seconds. I timed the time required to call and to return from CompactDataControl. With the traditional counters his approximately 0.2 seconds, with the code as indicated, its about 1.45 seconds.

  Any thoughts on what I missed or messed up.

  Concerning

  Gavin

  Not a bit of lag of MISTLETOE, is not a problem as long as the data is entered, is done on a regular basis... The biggest problem that is known now, are things like the spikes in data... graphic lines flat because the time may have changed, but data not given that the last trace point, because the route is done on the fly, instead of a data buffer. There are some historical problems with this software, and I'm sure I'll work on them for some time to come, despite the fact that I work on and outside at least 3 years now!

  Thanks for the comments... you have answered my question - not in the way I had hoped, you might, but to be honest, probably in the way that I didn't expect - IE no solution of 5 minutes!

• Async timer and Mutex?

  Hi all

  I rarely used async timers, but now I need.

  They run in a separate thread, right?

  That means that in some cases, I need to use mutex or critical sections?

  I remember feature for those in CVI. I usually use the library pthreads on Linux, so I don't know what you guys recommend in CVI.

  Thank you.

  In addition to notes ebalci, take a look at this multithreading documentation:

  • General information on Multithreading for C programmers and the document Preview Multithreading linked you should find already installed on your system.
  • The entire chapter Library Reference > User Interface Library > Multithreading in aid of the CVI
  • Chapter Programmer's Reference > creation of multithreaded in aid of CVI Applications

  CVI is delivered with a complete set of instruments, to share and protect data between threads: TSV beyond already mentioned by ebalci you can can count for example on the locks and Thread-Safe queues.

• App Apple Watch Timer is setting alarms

  I see a weird behavior with the OS3 timer app Watch: when the countdown is reached, I get the usual "done timer' screen with the bell sounds and the haptic feedback. I type the 'Stop' and stop the alerts. So far so good, but after 1 or 2 seconds, an alarm goes off saying "COUNT_DOWN_TIME_REACHED". Of course, I know that, I just rejected in the clock application so why also the notifications of alarms app? This never happened in OS1 and OS2. Is it supposed to be a 'novelty' for OS3? Is it possible to disable it?

  Restart your Apple Watch

  1. Hold down the side button until you see the cursor off the power.
  2. Drag the slider to turn off your device.
  3. Once your watch turns off, press and hold the side button again until you see the Apple logo.

  Then try the timer.

• XControl - behavior strange element parameters

  Hello

  I develop an XControl and I came across a strange problem. If I create a property and go in properties XControl-> settings for and select property, I am able to set the Unique identifier, description, etc. But when I close the project and open it again and go into settings of the element of the property is not marked as property more (it appears as a normal folder), so I'm not able to set Unique identifier, description, etc. more. I have attached two images below that shows the behavior. Judge several times and it's always the same, as when I create new XControl. I have LV 2012.

  Normal behavior

  

  Once the project has been closed and reopened

  

  Thank you

  Andrej

  Dear Andrej!

  Thanks for the detailed description. I checked, and it's a known issue with LabVIEW currently.

  To work around this problem, you can open the XControl directly with LabVIEW (so just open it as it is and not as part of a project).  This allows you to see and specify all the parameters of the element correctly.

  Kind regards:

  Andrew Valko

  National Instruments AE

• event data for the asynchronous timer

  My application uses an asynchronous timer to read analog and digital signals that are then loaded in a thread safe queue. The main part of the application unloads the queue, displays values and updates the locations of graph and also writes data to a file on disk.

  Asynchronous timer runs every 40 millisecs, show various updates run 5 times per second and the data is written to a file every second.

  Among the data elements is an entry SSI of lifting height, which, at this data rate should be increased to 25mm per second, or 1 mm each scan. I get a lot of variations in this reading, ranging from 0.3 mm to 1.7 mm and these variations seem to occur during updates of the display or the data file is written. I thought that using the async timer I would be safe from Windows Update problems, it runs in a separate thread.

  An earlier version used a timer Panel in which I was able to use the event data to show that timer interruptions were indeed affected by the activity of the screen. The async timer event data seem to zeros, whereas the event data of timer Panel that held a version of the hour and the time elapsed since the last interruption of the timer. How can I check that the async timer is interrupted at the right time?

  Reminder timer Asyncronus has the same exact structure of the timers UIR one, except for the first parameter, an integer that in the reminder timer UIR, holds the handle of the Panel the timer while it is reserved in the callback of the asynchronous timer. This means that the eventData parameter holds the information on the time elapsed in th eprogram, passed as pointers to values double. To read this information, you must operate this way:

  totalTime double, timeFromLastTimer;

  totalTime = *(double *) eventData1;      Time to start the program

  timeFromLastTimer = *(double *) eventData2;     The last reminder of timer time

• Strange behavior with postGlobalEvent and eventOccurred()...

  Hello world

  I have a browser plugin for my application that will do two things:

  Firstly, when the BlackBerry browser is forwarded to a Web page with a particular MIME type, the browser plugin will say my application to go to the foreground. It works without any problem.

  Secondly, the browser plugin will display a global event at my request. My request, making use of eventOccurred(), will look for this event and the EC type-approval, it will execute an authorize() method that I have. This also works. However, I notice some strange behavior:

  The first time my application launches the BlackBerry browser and goes to the page specified (with a custom MIME type), everything works fine. If I had while my application to launch the browser and do it AGAIN, my authorize() method is running TWICE. If I open the browser of my application for the third time, so my authorize() method is started THREE times. See the model?

  .. .This is all this without leaving my application. If I had to leave and then start my application again, the 'sequence' prior would begin again. Thus, it seems that whenever x times that I repeat this process, the eventOccurred() method will receive x events.

  Here are a few snippets:

  public class Events {
      final public static int EVENT_AUTHORIZE = 1;
      final public static int EVENT_OTHER = 2;
  }
  

  manager.postGlobalEvent(pid, 0xCAFEBABE, 1, 0, null, null);
  

  public void eventOccurred(long guid, int event_type, int arg2, Object arg3,
              Object arg4) {
          if (guid == 0xCAFEBABE) {
              switch (event_type) {
              case Events.EVENT_AUTHORIZE:
                  authorize();
                  System.out.println("EVENT EXECUTION");
                  break;
              case Events.EVENT_OTHER:
                  break;
              }
          }
  
      }
  

  Can we see what is happening here? I've been "racking my brain" on this one for a while now...

  Thank you!

  "Thus, this can work any time the class is instantiated." The class is instantiated just before I open my browser".

  Application.getApplication().addGlobalEventListener(this);
  

  If you call the above (by instantiating your class) every time that you open the browser, applications to register this event listener again and again.

  If you're going to do it this way, make sure removeGlobalListener you when your application is done processing.

  "Can I make addGlobalListener when my application starts even if this class does not implement GlobalEventListener?"

  You can always have your UiApplication implement GlobalEventListener or just instantiate a new object that implements it in the constructor of your UiApplication.

• Behavior of the focus Forms 11 g

  Hello...
  
  In forms 10g when we click on a text element, the text in this field is automatically selected. It doesn't go to 11g. Is this a bug or what?
  
  Concerning
  Ricardo

  Due to the complaints of clients one way or another, this behavior has changed several times over the years. If you want to make sure that all the text is selected upon entry, create a trigger ONCE - NEW - ITEM - INSTANCE and add this code:

  SELECT_ALL;
  

• Wiondows boot wedge

  Iʻm running OSX 10.10.5 on a Mac Pro 2008, with Windows 7, Tower occupying a SATA drive in one of four internal bays. My logic board died, I bought an another Mac Pro 2008 and inserted the same SATA drives. Everything on OSX, but the Windows start now stalls in time / date screen. I'm assuming that I might need to re - register Windows machine id has changed, but the boot process is not at this point.

  Thanks for your suggestions!

  You can start Windows safe mode?

• How do I change Google to DuckDuckGo when you CTRL + K or CTRL + J? (I have already changed the about: config > keyword.url)

  Hello. I have something I want to change the default behavior, but I can't do it.

  Here's what I want to do: I want to change www.google.com to www.duckduckgo.com. However, when I do CTRL + J or CTRL + K he continues to send me on www.google.com.

  Here's what I did: I found that the search bar is now useless. Indeed, the "awesome bar" is so awesome that I have basically need the bar more research. Thus, for a long time, I took it.

  There is only an advantage. When the search bar disappeared, the shortcut which was to place the cursor on the search bar got another behavior. When I use CTRL + K (CTRL + J), the page would automatically change to www.google.com.

  I liked this behavior, because at the time, I used google as my search engine.

  But now I want to duckduckgo, I'm kind of embarrassed by it, especially since I cannot change this behavior. I have re-enabled the search bar and changed the search option above to DuckDuckGo, in hopes that will change behavior. He did not.

  In addition, as DuckDuckGo has said, I changed on: config keyword.url and keyword.enable.

  But I still have the www.google.com when I press CTRL + K/J

  I asked the question to my stream of Diaspora ( http://diasp.org ) and was able to get a solution in the day. Go figure. Before doing this, you will already have DuckDuckGo added to your list of search engine (in the drop box).

  Here is the solution. With the permission of ilyse na' IMO kazar

  in the subject location bar: config. You will need to confirm when you are advised that «this will void your warranty» You will see a bunch of preferences which, if you have never done this before, you never imagined exist under the hood of the FF.

  In the filter bar type browser.search.defaultenginename. In the column 'Value', says Google. Double-click the word Google and a dialog appears allowing you to specify the default engine again. TypeRegeditdans DuckDuckGo exactly as it appears in the drop-down search engines available in your browser. On my Mac the magic string is "DuckDuckGo (SSL)" without the quotes.

  About: config and check it, out worked for me!

• need money scam to delete the video

  Hello world

  Unfortunately, I caught by scam that needs money so that will not be uploaded to YouTube or other sites. I am very lucky I have is to not share with her personal details or my Facebook account or my number or twitter. It was only my Skype. I also have a lot of luck, I used Skype account difference for these people not my own personal account of Skype. But unfortunately, today, I'm sharing bad things. I'm so disappointed this has happened to me. I would be very grateful if you could let me know, if she will download the video from YouTube and other sites or not. If so, how do I know that it has already downloaded the video. I have deleted, blocked and send report of abuse to the Skype community to its subject.

  Hello
  It happens every day. The singer is part of a gang of male blackmail. Do not contact the blackmailer and NEVER give them money.
  https://support.Skype.com/en/FAQ/FA34447/what-should-i-do-if-i-see-abusive-behavior-on-Skype

  TIME ZONE - US EAST. LOCATION - PHILADELPHIA, PA, USA.
  
  I recommend that you always run the latest version of Skype: Windows & Mac
  
  If my advice helped to solve your problem, please mark it as a solution to help others.
  Please note that I usually do not respond to unsolicited private Messages. Thank you.

• Report a user of Skype blackmail scam

  I was subjected to blackmail by a user - last night that captured a video of me

  Hello
  It happens every day. The singer is part of a gang of male blackmail. Do NOT contact the blackmailer and NEVER give them money. Leads only to ask for more.
  https://support.Skype.com/en/FAQ/FA34447/what-should-i-do-if-i-see-abusive-behavior-on-Skype

  TIME ZONE - US EAST. LOCATION - PHILADELPHIA, PA, USA.
  
  I recommend that you always run the latest version of Skype: Windows & Mac
  
  If my advice helped to solve your problem, please mark it as a solution to help others.
  Please note that I usually do not respond to unsolicited private Messages. Thank you.