how do i perform buffered digital I/O using the PCI 6733 card

[atlantest]

hello,

i am going crazy trying to perfrom buffered pattern IO using a PCI-6733 daq card. the manual states the following:

The NI 673X includes FIFOs for buffered operation. with buffered operation, you can read/write an array of data, using either an internal or external clock source, at a maximum rate of 10 MHz.

am i misreading this. i can't find any information specific to this card. i saw in the DAQ readme.txt for version 6.9.2 that support for this card was added.

i can configure the port, configure the buffer, write the data to the buffer, but can't find any way to set the clock frequency or just start it firing at whatever clock rate is currently set.

any help appreciated.

dg

[Filipe A.]

Hello;

That board you have there only performs buffered operation on its analog input/output channels.

To do a digital pattern generation operation you need one of the boards of the 653x family.

Hope this helps.
Filipe A.
Applications Engineer
National Instruments

[atlantest]

Filipe,

thank you very much...however, the quote from the manual that i included is from page 3-6 of the 'Digital I/O' section. is the documentation in error?

thanx,

dg

[Rolf_Weibull]

Hello dg,

The 6733 support Correlated Digitial I/O (CDIO) - which allows these boards to perform hardware timed, buffered digital operations. Because these devices do not have their own dedicated digital clock, they must use an external clock, the output of a counter or the AO sample clock to clock the correlated digital operations.

See the CDI and CDO vi examples at Hardware Input and Output -> DAQ -> Digital Input and Output -> E Series.

/Rolf W.