Pulse Train Generation and Digital Output on a pci-6601

[jakub_poland]

I've configured pulse train generator on counter 3 and it works ok,

but when I configure some pins as digital outputs generator does not working. Why?

J.

[jakub_poland]

I found some solutions:

http://digital.ni.com/public.nsf/allkb/862567530005F09E8625677800577C27

but I dont know how to this in C#...

[DavidVr]

Hey Jakub, 

The following links should be usefull  for You:

http://zone.ni.com/devzone/cda/tut/p/id/5409

http://digital.ni.com/public.nsf/allkb/F0FD13D2DD0C433986256D9C00468D29

Let us know if You have further questions!

Have a nice day!

Best regards,

David Varga

Applications Engineer

NIH

[jakub_poland]

Thanks for your links but I manage with Daq programming using C# problem is in different way...

When I used pci-6220 everything was ok but I've changed card to pci-6601 becouse I need more counters in my application.

My application looks like:

1. Configure some pin as output (for example Px.1)

2. Configure counter 3 as freq generator

3. Start counter 3 task - freq generator works fine!

4. Write to port to change output state - then freq generator stops (without any message about error in application - only stops generating pulses).

I dont what to do with this...

I wonder about additional card configuration is needed, it's possibe?

[DavidVr]

Hey Jakub,

  It really does seem as an odd behaviour. Did You try it with other combinations? Did You try it with the native DIO lines, or You picked a PFI line from the other 24? If so, please try it in combnation with a nother counter and a native digital line! Is the Self Test passing in MAX?

Please let me know what the results were, so we can move forward!

Best regards,

David Varga

Applications Engineer

NIH