Interfacing Linear CCD ILX554B to LabView via NI USB-6009. Digital Edge Trigger Error

[udara]

Hello,

I'm trying to interface ILX554B Linear CCD to LabView via NI USB-6009. I'm acquiring data from the the CCD at 45 kSa/s. So far the analog data acquision is successfull. Now I want to trigger the the DAQ card with the clock pulse (0-5V) using the the PFI0 'digital edge triggering' to extract the and seperate each data set(there is a gap between each train of clock pulsese and hence a gap between each data set).
I can acquire data when when no triggering is used.but when I select 'Digital Edge trigger', an error occurs.

Possible reason(s):

Some or all of the samples requested have not yet been acquired.

To wait for the samples to become available use a longer read timeout or read later in your program. To make the samples available sooner, increase the sample rate. If your task uses a start trigger, make sure that your start trigger is configured correctly. It is also possible that you configured the task for external timing, and no clock was supplied. If this is the case, supply an external clock.

Property: RelativeTo
Corresponding Value: Current Read Position
Property: Offset
Corresponding Value: 0

Task Name: _unnamedTask<2>

I would be grateful if anyone can help me with this. At least to trigger at the first risng edge of the train of clock pulses.

The following is the data acquired without a trigger

[Izzzzz]

Hello udara, 

Based on the error message, and your success without the trigger either you’re not sending the trigger within the 10 second timeout limit of the DAQmx Read.vi or your trigger is not TTL compatible. To better assist you with this issue I have a couple of questions for you. What kind of clock pulse are you sending to the PFI0 pin and how do you control when the signal is sent? Also ensure the trigger pulses meets the TTL specifications as discussed in this KnowledgeBase Article. 

Regards,

Izzy Obi-onuoha

Applicaitons Engineer

National Instruments

ni.com/support