Chris, (all), Oh, your right... that is better...
-Lenny On Wed, Mar 30, 2011 at 12:58 AM, Chris Albertson <[email protected] > wrote: > On Tue, Mar 29, 2011 at 7:30 PM, Lenny Story <[email protected]> wrote: > > All, > > > > Ok... so i'll just make it a rising edge pulse of ~500ms. That should be > > enough time for a linux box to detect it. > > I would vote for a non-symetric waveform so you can see if it is inverted. > > I don't think the pulse is detected by software. It's an interrupt. > The Linux PPS handler reads the clock and stores it. Latter software > that "reads" the PPS is given the stored time tag. I'm pretty sure the > interrupt hardware is trigged by the edge. Choose the length so a > human (you) can detect it > > -- > ===== > Chris Albertson > Redondo Beach, California > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
