Error Msg? "current buffer overwritten by the acquistion"

Question

I got a error msg while doing IMAQ 1394 acquisition, it is random.
Anyone had an idea on what the possible reason is?
Thanks
The message shows as following:
Error -1074364365 occurred at an unidentified location
Possible reason(s):
NI-IMAQ IEEE-1394:  (Hex 0xBFF68033) Requested buffer unavailable. Contents
of the current buffer overwritten by the acquistion.
NI Software :  LabVIEW  version 7.1.1
NI Hardware :  Image Acquisition (IMAQ) device NI IMAQ for 1394
Driver Version :  2.0.1
OS :  Windows XP

Answer 1

I've never done 1394 Acquisition, but with respect to normal DAQ,
there's a similar message which occurs when you're doing buffered I/O
and you don't read out the buffer quickly enough.  Once the
acquisition has filled the buffer, it overflows (or overwrites to be
more exact) and then gets either very unstable or gives an error
message.
If you're doing buffered I/O, check that your buffer is large enough,
and that you're reading the data from the buffer quickly enough. 
And of course, lowering the acquisition rate will often also help solve
this particular problem (if this is the problem at all).
Again, I've never done 1394 acquisition, but the message kind of rings a bell.
Hope this helps
Shane.
Message Edited by shoneill on 11-22-2005 10:29 AM
Using LV 6.1 and 8.2.1 on W2k (SP4) and WXP (SP2)