On 6/23/2014 8:29 PM, [email protected] wrote: > > When I check the pins with my O-scope I get nothing. I think I am really > close but I can't figure out why they aren't outputting. > > I've been reading a bunch of stuff about pin muxing, device tree overlays, > clock enabling... but I'm not sure what is up to date for BBB running > Debian 3.8.13 kernel > > Anybody have any ideas?
Reviewing the device overlay you loaded, there is no pin multiplexing going on, so you are turning on the hardware PWM, but it's not actually reaching the I/O pins. I'd recommend either using an overly that includes pin multiplexing like the bone_pwm_P[89]_?? dts files, or something like my universal cape overlay that turns on most useful hardware (PWM, UARTS, etc), and allows you to control pin multiplexing at runtime with the config-pin utility (already installed on your 'bone if you're using a recent Debian image from RCN). -- Charles Steinkuehler [email protected] -- 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]. For more options, visit https://groups.google.com/d/optout.
