PXI-5112 will not reference trigger

[maxwellb]

I've been working with one PXI-5112 board for a while, and just started trying to integrate a second one. The first board is rev E and the second board is rev J.

I operate these boards in two different modes. One is continuous acquisition mode where the board is never reference triggered. It collects pretrigger samples at a low sample rate and I fetch them as they come in for an extended acquistion (15 seconds).

In the other mode, I digital edge reference trigger the board through an RTSI line and acquire as many samples as I can at the fastest rate I can.

Using the same VI, both boards work with the continuous acquisition mode, but the rev J board has trouble with the reference triggered mode. The rev J board doesn't seem to respond to any kind of reference trigger, even an immediate trigger. The SCOPE test panel within MAX has the same problem. I think the SCOPE front panel always relies on a reference trigger, because I can't acquire any data with it.

I haven't tried triggering the device through one of the front panel connectors, but I doubt that it will work, because immediate triggering doesn't work. I also haven't tried software triggering, although that wouldn't really work for my application.

Anyone seen something like this before?

[maxwellb]

I should mention that the rev J card will accept a digitial edge start trigger. That works fine. Just not any kind of stop trigger.

[maxwellb]

Just tried external analog edge reference trigger. Again, that works for the rev E board but not for the rev J.

[R Sandoval]

Hello There,

This problem seems to be a unique issue associated with your second 5112 board.  Since the board "doesn't seem to respond to any kind of reference trigger", it may have to be repaired by one of our RMA technicians.  Does the 5112 pass self test in MAX?  My recommendation is to contact National Instruments support to have an applications engineer provide you with a few troubleshooting steps and connect you to the RMA department.  Please have your card model and serial number available.