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PCI-6040E works with problems

Hallo,
I’ve installed PCI 5112 (configured with 16 Mbytes RAM) and 6040E (PCI-MIO-16E4) boards in the same PC.
6040E has to generate a buffer of over 1Msamples of data continuously, at an update rate of 800Ksample/sec.
5112 has to acquire this signal, in a continuous acquisition mode (with “niscope ex fetch forever.vi” example).
I’ve used Labview 5.1.
When 5112 board acquires with sample rate over 200 KHz and/or fetch data over 100Kbytes, 6040 board stops signal generation after less than 1 minute (sometimes after few seconds)!
PC is configured with Pentium PIII, 256Mbytes RAM, 500MHz clock, WinNT 4.0.
Cannot PCI-5112 and PCI-6040E work in the same PC?
Thank you for your answers.
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You might look into any other situations that cause the problem.

1) Will the 6040E ever stop generating if the 5112 is not running at all?

2) When the 6040E stops generating, do you get a NI-DAQ error? Which one? Is it always the same error?

3) You said it's related to how fast the 5112 is sampling, is it also related to how fast the 6040E is generating?

I assume the 6040E output is only one channel. (Two channels would exceed the max rate as specified in the manual.)

Russell

Applications Engineer
National Instruments
http://www.ni.com/support
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