Change CAN buffer size

[aRCo]

Hi all. I own a PXI-8464 CAN board. I would like to know if it is possible to change the buffer size without closing and opening again the CAN object. Thanks!

[Luca_Gallo]

Hi aRco,

Take a look at this doc, maybe it might help you:

http://digital.ni.com/public.nsf/allkb/A0D719ABE36DD0E78625715E0012A079?OpenDocument

Best Regards,

[aRCo]

Well, the configuration of the CAN channel is possible only before opening the resource. Thus i deduce that is not possible to change the buffer size dinamically (without closing and opening the resource again). Is this a correct deduction?

Thanks Luca

[aRCo]

Another question..

For my problem, the solution could be configure the channel with a constant buffer size (for example 100), open the channel and clean the buffer whenever i need to get the most recent message.

So.. how can i clean the buffer? Could i perform a reset using the ncAction.vi?

Thanks again!

[aRCo]

Any clues?

[Luca_Gallo]

yes, you can clear the buffer using the ncAction.vi but you also have to Start the CAN object again since ncAction Reset puts the object into an idle state.
This is stated also here on the CAN manual:

http://www.ni.com/pdf/manuals/370289m.pdf

Best Regards