Trigger when signal stays high

Logic 2 Software
1

I’m using Logic 2 v2.4.40.

I want to trigger when a signal stops and stays high. It seems like this should be easy, but I can’t figure out how.

Suggestions?

Thanks,

-Rob

2

Given your trigger criteria:

See the existing idea (and vote for it) here:

… as well as a clever work around using using the software glitch filter.

TL;DR –

On the trigger source channel:

  • Set the glitch filter to the maximum idle time to wait before triggering
    (i.e., minimum time without an edge on the trigger channel)
  • Set Capture Mode to either:
    • Trigger Mode : Rising Edge
      (for a signal that idles high), OR
    • Trigger Mode : Falling Edge
      (for a signal that idles low)

Note: see above link for more details on the work around, including the technical limitations.

Also, you might want two channels connected to same signal, to both: (1) trigger on idle high (or on idle low) and (2) see all the signal edges w/o a glitch filter.