speedy stop responding

[dist1988]

In my experiment I used speedy-33 to view a form of signal and to measure its amplitude, everything works good, but one problem appeared: speedy-33 works good, but after some period of time it stops responding (the period always different), labview program "hanging up", so I need to relaunch program and to reset speedy-33. What can be problem here?

[Peñata]

Hi dist1988,

Can you further describe the hang up you are seeing? When it hangs up, do you have to completely shut down LabVIEW or just the VI? What version of LabVIEW are you working with?

As far as repairing the issue, one of the first things you can do is a LabVIEW Repair. To do this, go to Start»Control Panel and then open up Add or Remove Programs. When the list finally populates, find the listing for National Instruments Software, select it, and then click Change/Remove. This will open another window that will list the NI software installed on your computer. Find LabVIEW on this list, select it, and click Repair.

Aaron P

National Instruments

Applications Engineer

http://www.ni.com/support

[dist1988]

The version of LabVIEW is 8.2.

Wne I run program, I can see the form and avplitude of signal using speedy analog input in a real time, but in some period of time( always different, from 2 to 10 minutes) LabVIEW program stops. When I press "run" again, it gives me this error:

"ERROR: DSP memory read error. The target hardware is no longer responding Please verify tahat the hardware is functioning properly"

So I need to reset Speedy, and only then press "run" again to make it work.

[Jim_S]

After reading the error, I think that this problem could be associated to a memory leak in your program. I believe that when this memory leak over takes the program it cause LabVIEW to crash and then leave the Speedy-33 in an unstable state.

In order to look at the memory use of time, LabVIEW has a toolkit called the Performance and Memory and this is located under Tools >> Profile. When this toolkit is ran while your application is running, it will tell you how much memory your application is comsuming. If you notice that this is increasing, you will need to analyze your code to find the memory leak. If it isn't doing this than we will need to look into this further.

JimS

[dist1988]

1) I ran my aplication and ran Perfomance and Memory toolkit, but nothing appeared in this toolkit. I tried to choose Speedy -33 in "select application instances", but it has gray colour and couldn't be chosen.

2) For example I tried to run "Sine Generator" from C:\Program Files\National Instruments\LabVIEW 8.6\examples\EmbeddedDSP which is given with DSP Module. So after the period of  3 - 7 minutes Speedy hangs up and stops generate sin signal, given me the same error.if I want to start program again, I need to reset Speedy. What can be problem here?

[Peñata]

Hi dist1988,

Do you have another computer with LabVIEW and the DSP module installed that you can run this same application on? This would be a good test to determine if it is the hardware or your computer.

Aaron P

National Instruments

Applications Engineer

http://www.ni.com/support