On Fri, Jan 15, 2021 at 1:43 PM Steve Lentz <[email protected]> wrote: > > I’ve investigated a bit more. First, and I should have done this sooner, I > removed all the capes I’m using and tested the bare Beaglebone black. > Success, all four PWMs work. > > Then I began adding capes one at a time. I found that when a Prototype Cape > is used, PWM is no longer available on P8_13. To be absolutely certain, I > connected a brand new out of the box GHI Prototype Cape. No PWM on P8_13. > Remove the cape and PWM works. > > If I connect a Power Cape, PWM works, this would seem to rule out a bad > solder joint or something physical on the BBB. > > There is nothing near P8_13 on any of these capes, yet something is affecting > that pin. > > Is there something in the device tree that allows the cape to grab one of the > PWM devices, perhaps for the variable LED that’s on the cape? > > Any other ideas what would cause this?
Do you have a part number for the Prototype Cape used? Sorry it doesn't ring a bell for me.. 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/CAOCHtYia0wOHpjObZ_%3Dvj7O9KzxZtLz7CkxYQkr1jRwcHBrwEA%40mail.gmail.com.
