On Thu, Aug 30, 2018 at 12:26 PM Thomas <[email protected]> wrote: > > Robert, > I can't thank you enough for helping me through this. There is very little > information available online regarding this procedure with this kernel > version... > > First, I made the edit that you recommended.. Now, the BBB reboots and I can > see NEMA data coming from the GPS chip. However, when I run PPSTEST on > /dev/pps0, I get the following: > > trying PPS source "/dev/pps0" > found PPS source "/dev/pps0" > ok, found 1 source(s), now start fetching data... > time_pps_fetch() error -1 (Connection timed out) > time_pps_fetch() error -1 (Connection timed out) > time_pps_fetch() error -1 (Connection timed out) > ^C > > > I just measured the P9_12 pin, and I see 2.2v and a 100ms pulse width square > wave coming from the Adafruit GPS receiver. Any other thoughts as to what > might be causing the timeout?
Just looked it up, in the pps node you have: gpios = <&gpio1 16 0>; However P9_12 is: gpio1 28 So swap the 16 for 28 Regards, -- Robert Nelson https://rcn-ee.com/ -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/CAOCHtYgGfKRBoi_4UhoOyBzRz4%3DKmGoU4uWNoEGqR6nVCa_1yA%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
