Here Rick, maybe this will refresh you on the subject.
http://stackoverflow.com/questions/16872763/configuring-pins-mode-beaglebone
second answer I think talks about device tree files, while the first one
talks about some crazy script method . . .
But essentially, and I'm no expert here, and from the second answer . . .
pinctrl-single,pins = <
0x070 0x2f /* P9_11 30 INPUT MODE7 none */
0x074 0x2f /* P9_13 31 INPUT MODE7 none */
0x040 0x2f /* P9_15 48 INPUT MODE7 none */
0x15c 0x2f /* P9_17 05 INPUT MODE7 none */
>;
This in it's self does a lot of explaining here. Check out the comments for
each pin, and mode.
On Sun, Apr 3, 2016 at 5:18 PM, Rick Mann <[email protected]> wrote:
>
> > On Apr 3, 2016, at 17:07 , William Hermans <[email protected]> wrote:
> >
> > Yes, it can be done. I thought you had all this down before ? You can
> configure what mode the pin is actually used for - The several different
> peripheral types per pin, or GPIO + pull up/down or neither, and pin
> direction.
>
> Sorry, I haven't been able to touch this since last summer, and I don't
> always remember what I figured out. I do recall that I can set up the pin,
> but I've never figured out for sure how to set the output state.
>
> Also, I've never succeeded in getting a full DTB working (one that sets up
> my pins, ADC, PRU, and audio). I'm hoping enough progress has been made in
> the kernels that I can finally get there. And I'm getting closer, just not
> quite there yet.
>
> --
> Rick Mann
> [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.
>
--
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.
