Digital I/O

cancel
Showing results for 
Search instead for 
Did you mean: 

External clocking on PCI-6534

How do I connect an oscillator (14MHz) as an external clock for pattern generation output from a PCI-6534?
0 Kudos
Message 1 of 4
(3,959 Views)
Hello,

Your DAQ card supports pattern I/O up to 20MHz, so this issue is just a matter of physical connectivity.

You will want to connect the oscillator to the REQ pin on your breakout box. If you selected an external clock in the clock source control, connect your clock signal to the REQ pin. Use REQ1 if your port list is 0, 0:1, or 0:3, otherwise use REQ2. If you selected an internal clock, the clock signal is output on the REQ pin of the I/O connector.

Here is an example LabVIEW program that you can use for testing (provided you are using LabVIEW).

I hope this helps. Please let me know if I can further as
sist you.

Best Regards,

-Joe Des Rosier-
National Instruments
0 Kudos
Message 2 of 4
(3,960 Views)
Hi,
i'm using NI 6533 now i want to read digital data on single line.with external clock source  i have used MAX DAQ  but still i am not  getting about that  external clock source  i.e PFI0,RTSI0 etc....
please  could you explain me regarding this external clock source how do i use it where do i connect external clock source & how do i read it.

please reply me


Regards
Mandar
0 Kudos
Message 3 of 4
(3,675 Views)
Hello All,

This topic has been posted to another forum here. Please refer to that forum for any updates.

Matt Anderson

Hardware Services Marketing Manager
National Instruments
0 Kudos
Message 4 of 4
(3,661 Views)