monitoring triggers

[stagger lee]

hi,
i'm using a triggered analog acquisition, start digital edge and reference digital edge to stop the acquisition. i'd like to monitor the triggers. now, other than hardwiring the trigger paths to digital input channels and monitor them etc. is there a way of plucking out the trigger conditions from within the program itself. some sort of 'event' thingy?

thanks in advance for any ideas/pointers.

[AdnanZ]

Hi!

I am not sure if I have understood the problem correctly; but one way to implement this would be to monitor the analog input line and you will know when a trigger occurs when you start reading data from the line. If this is not what you were looking for, give me a detailed explaination of the problem you are facing. Also, what kind of hardware are you using in your setup?

[stagger lee]

hi, thanks for the reply.
i have an automatically generated start/stop trigger which controls analogue data acquisition. the data is simply acquired and saved to file for some post processing later. my trigger input is on the PFI rising edge to start, falling edge to stop. trigger signals are produced externally with some logic circuit. at present i'm using a 6036E board, but final application will run on a usb6008/9 as a executable built from l'view7.1.

i'd like to convey to the user some status information, i.e. that the system is preparing to acquire data between the stop-start trigger. and that it is acquiring data between the start-stop trigger.

i know i can monitor my trigger signal using a digital input, and if it's low i'm not acquiring data and if it's hi, then i am acquiring data etc. but i was wonderign if i can see the trigger signal somehow within the program.

hope my explanation makes sense?

regards, j.

[AdnanZ]

Hi!

No, there is not utility that will help you with that. But, you should be able to program it by yourself.

[stagger lee]

shame, not to worry. thanks for the replies. i'll sort it via a digital port.
regards, j.