Internal memory error using IMAQ 1394 ver 2.0

Question

Hi Robert,
I apologize for the much belated response to your e-mail.
- When I was receiving the fatal memory error I was using the GRAB vi
to acquire the data.  The problem seems to go away if I switch to
the SNAP acquisition method.
- I am not using the IMAQ vision FFT vi, I am using the FFT Spectrum vi.
- When the image acquisition code is removed I ran the FFT on simulated
data generated within the program not loaded from a stored file.
Thanks,
Ronen
-----Original Message-----
From: [email protected] [mailto:[email protected]]
Sent: Monday, August 01, 2005 8:20 AM
To: Feldman, Ronen (Contractor)
Subject: Re: (Reference#7084698) Phone Support E-Mail
Hi Ronen,
My name is Robert and I am one of National Instruments' IMAQ and Vision
supporters.  Eric has forwarded me your email regarding the error
you are receiving as it looks like the problem may be related to the
image acquisition side of things.
In your last email, you noted that the fatal error does not occur if
you remove the FFT code or if you remove the IMAQ code.  I was
hoping you could describe for me a couple of things in greater
detail.  1) In your typical code configuration, do you acquire
with a GRAB?
2) The FFT code that you mention, are you using IMAQ FFT VIs from the Vision Development Module?
3) You said if you remove the image acquisition code the program runs
fine. Does this mean that you are running your code on an image loaded
from file?
These answers should help us get to the bottom of the situation.
Additionally, how large is your program?  Are all of the various
parts subVIs?
Regarding your other question, data parameters like those that you
mentioned can be changed during program execution, but those changes
are not saved to the camera's configuration file.  If you make
these changes through the Measurement and Automation Explorer the
camera configuration file will be updated.  This behavior is to
protect the configuration files from being corrupted by the program you
run.
Hope this helps.  Let me know how things go with the IMAQ/FFT code.
Regards,
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Answer 1

Hi Ronen,
I guess using the forums works for me too! I'm just glad I found it
To clarify, you are first acquiring with a Grab (does not work) or snap (works fine) and then performing an Image to Array.  After Image to array you use the intensity information within the FFT Spectrum.vi?  When the program errors out, do you know which step you are running? 
In addition, you should be able to whittle the program down to just these basic steps, and see if the error continues to occur.  If the problem you are having can be consistently reproduced with these three or four steps, I would be interested in seeing if I can reproduce the problem here.
Regarding one of your other questions, changes made to the camera configuration file from Labview will not be permanent.  This is to avoid the possible hazard of overwriting the file with a non working configuration.
Hope this helps,
Robert