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From Friday, April 19th (11:00 PM CDT) through Saturday, April 20th (2:00 PM CDT), 2024, ni.com will undergo system upgrades that may result in temporary service interruption.
We appreciate your patience as we improve our online experience.
01-04-2006 01:56 PM
01-05-2006 04:19 PM
01-05-2006 11:12 PM
Alan,
Thank you so much for replying to my question. My problem was that if I used Digital Ref and I try to trigger off Dev/ai0 then I cannot acquire data from other channels (error message if I try to create more than 1 channel and trigger off the first channel). So I ended up use Internal Clk SW trigger which is a continuous acquisition and the software manually check for trigger. This way is very slow in older PCs (slow speed). I hope that you (or someone) would be able to guide me out on how to make this more efficeient.
Thanks,
Yajai
01-06-2006 10:24 AM
01-06-2006 12:33 PM
Again thank you so much for taking time with my questions. My big problem is that there is no dedicated channel for the trigger. Users can set any of the 16 channels for a trigger. So it is not a easy wiring from the trigger channel to PFI line. We will need a multiplexer of some sort and need digital I/O line to do it. Unfortunately, we use all our digital IO line for other purposes so it is impossible for us to have a cuircuit for multiplexer. Is there any other trick you can suggest to help me out in this regard? Using SW trigger with continuous data acquisition is way too slow and we got a lot of complaints from our clients, unfortunately.
I really appreciate your helps,
Yajai.
01-09-2006 10:19 AM