two triggers with ni4472?

[remifab]

Dear all,
With the DAQ Ni4472.
Can I use the external (digital) trigger and the Analog trigger at the same time. I would like to make an acquisition when the external trigger AND the analog trigger (from CH<1>) are true?
thank you for your help

[Christian_L]

The 4472 does not support this combined functionality. I do have some ideas how to implement this using some additional hardware. Please contact me directly to discuss this option.

Christian Loew
NI Consulting Services
christianloew@ni.com

[Christian_L]

Some additional information,

This type of application may be solved with the LabVIEW FPGA Pioneer System in conjunction with the 4472. The triggering would be handled by the reconfigurable I/O hardware and the final trigger signal sent to the 4472 over the RTSI/PXI trigger lines. The specific functionality of the trigger can be custom-defined in the LabVIEW FPGA code.

http://sine.ni.com/apps/we/nioc.vp?cid=11834〈=US

Christian Loew
NI Consulting Services

[momolxg]

Hello,

And where do I find an example to show me how to route signals onto the PXI Trigger/RTSI Bus from The PXI 7831R FPGA module?

.... and examples for synchronizing multiple cards in two chassis separated by 30m?

Thanks, Louis

[GValdes]

Hi, Louis,

If you are using LabVIEW 7.1, you can find an example that routes digital lines over the PXI bus using a 7831R, on C:\Program Files\National Instruments\LabVIEW 7.1\examples\FPGA\Applets\RIO Master-Slave. Basically, you can think of the routing lines like any other digital line of the 7831R. Just be careful and make sure that you do not drive a line high AND low from two different locations at the same time.

I hope this helps!

GValdes

[adrathi]

Hi

You may like to refer to the manual on the following link: http://www.ni.com/pdf/manuals/323403a.pdf. I assume that you are using PXI-6653 to synchronize the chassis. This manual explains how to synchronize multiple chassis using NI-PXI 6653 and NI-PXI-4472 cards. I hope so the manual answers your questions.

Regards,

Aditya Rathi
Applications Engineering
National Instruments

[momolxg]

---

@ADIT wrote:
Hi

You may like to refer to the manual on the following link: http://www.ni.com/pdf/manuals/323403a.pdf. I assume that you are using PXI-6653 to synchronize the chassis. This manual explains how to synchronize multiple chassis using NI-PXI 6653 and NI-PXI-4472 cards. I hope so the manual answers your questions.

Regards,

Aditya Rathi
Applications Engineering
National Instruments

---

Hi,

Thanks for the routing info - that has helped.

I still am unsure whether or not I need the 6653 for synchronisation. My 2 crates will both have the PXI 7831R in them. I am slowly coming to the conclusion that by routing a 10 MHZ clock onto PXI_CLK through these modules and synchronising the FPGA's to this, I can achieve the desired multiple chassis synchronisation.

... and I am still looking for a driver for my MXI-3 cards for Windows XP.

Thanks, Louis

[adrathi]

Louis,

Regarding the driver for MXI-3 on windows XP, the OS will itself attempt to install a driver for this PCI-PCI bridge, but no driver is required. MXI-3 should be detected and configured by the BIOS at boot up. Communication with this PCI-PCI bridge occurs automatically at the hardware level, not at the OS level. The MXI-3 optimization software should be installed on the host PC, but this software is not required to use MXI-3. We would recommend using the MXI-3 Optimization Software.

Aditya Rathi
Applications Engineering
National Instruments

[momolxg]

Hi, One more question - on my PXI 8186 Controller there is an SMB trigger input on the front panel.
I cannot find any info on how to use this to trigger my PXI 7831R modules.
Thanks