Thanks!!   Very helpful.  One issue with just using the config-pin utility 
is that it doesn't always give you access to all the configurations 
possible for a peripheral (not pin), for instance, setting a pin to eqep 
(qep), there are actually several modes of eqep.   The dts file often 
includes all these options.  

On Saturday, January 20, 2018 at 12:28:20 AM UTC-8, Hugh Frater wrote:
>
> You basically have 2 options regarding pinmuxing on a bb.... the 
> config-pin utility requires the universal cape to be loaded as the only 
> dtbo, you then use configure-pin to setup the pins you want. 
>
> 2nd option, specify the overlays for the actual hardware you want to use, 
> e.g robotics cape, bone-eqep2 etc. You can’t load the specific overlays and 
> the universal cape together, they conflict, and you can’t use confit-pin 
> without the universal overlay being loaded. 
>
> Personally, given I’m using a ton of pins for various things, I use the 
> universal overlay then have a script that runs from init.d to configure all 
> the pins at boot time. I preferred the convenience of using the config-pin 
> utility as apposed to writing my own device overlay for the pins I’m using.

-- 
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/8116d795-5b36-4db5-b705-e7b19fa2c8c9%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

Reply via email to