programming the National Instruments PCI-6534

[Alex]

This may not really be a Labview question so if there's a better place
to ask it someone please let me know. I'm attempting to program the
NI PCI-6534 to do simultaneous output and input. I've tried combining
two of the example VIs, "Buffered Pattern Output" and "Buffered
Pattern Input" and I get errors. If I set up the output, then set up
the input, then I try to write to the output buffer I get an error
that the device is not set up for output. If I reorder the execution
to set up output, write to the output buffer, then set up the input, I
get an error when "DIO Start" runs. So is it possible to do
simultaneous input/output? If so are there any examples of this I
could look at? Thanks a lot.

Alex

[Filipe A.]

Alex;

I'm attaching a Labview example that does the trick.
Hope this helps.
Filipe A.
Applications Engineer
National Instruments

[Alex]

I solved my previous problem, I wasn't giving each port its own group
number. So does anyone use these devices (6602 and 6534) and has tips
on anything else I should look out for? The manuals are not as
helpful as I expected.

Alex