burst mode without handshaking

[bpollet]

I've got three NI PXI-6533 board and I'd like to generate continuously three 32 bit vectors at 1MHZ.
How should I use my boards? which protocol should I choose to perform my application? Is the PXI bus bandwith a problem I should consider? Can I use burst mode without handshaking (without ACK and REQ signal)?

[RIO-Todd]

You will want to perform pattern generation with your PXI-6533. Pattern generation uses a clocking signal and on each edge (rising or falling...software configurable) of the clock signal data is latched to/from (depending on whether you're peforming input or output) the 6533. With pattern generation, there is no handshaking being performed and you can have an internal or external clocking signal.

There are both LabVIEW shipping examples and text-based programming examples installed with NI-DAQ that illustrate how to perform continuous pattern generation with a 653x device. You can either search through the LabVIEW examples for 653x devices if you're using LabVIEW or look in the ...\Program Files\National Instruments\NI-DAQ\Examples directory for text-based e
xamples.

I've also included a link to an online tutorial below that describes all of the digital I/O operations.

Digital I/O Applications
http://zone.ni.com/devzone/conceptd.nsf/webmain/467ed254f3a30b1286256a6f00720951#6

I hope this helps.

Regards,

Todd D.
NI Applications Engineer