Thank you so much! This cleared up a lot of confusion for me and I was able to get things working.
On Tuesday, January 14, 2020 at 2:24:00 PM UTC-8, Alexander Zangerl wrote: > > On Tue, 14 Jan 2020 12:52:01 -0800, Zeph writes: > >i need to reconfigure the pins that are not by default gpio. For example > >P8_46 pin which is by default an LCD_Data pin. > > by default the lcd pins are assigned to/used by the hdmi framer, as per > the > system reference manual. > > >When using the BBB with a debian stretch image I can use those pins as > >gpio. However, when I use my ubuntu distro, those pins will not work as > >gpio. When I try and reconfigure the pins using the config-pin utility I > >get this error: > > > >P8_46 pinmux file not found! > > to make these pins available for other purposes you'll need > to disable hdmi, using "disable_uboot_overlay_video=1" in uEnv.txt. > > see for example: > https://github.com/beagleboard/linux/issues/139 > and not quite as directly related: > https://github.com/beagleboard/bb.org-overlays/issues/76 > > >This slots file doesn't exist and so I can never proceed. > > the slots stuff is long gone, you need to convince your uboot (via > uEnv.txt) > to load the relevant overlays. > see https://elinux.org/Beagleboard:BeagleBoneBlack_Debian#U-Boot_Overlays > for > a little bit of explanation. > > >Note: I need to be running the ubuntu distro. > > you may have to update your uboot version to make the u-boot overlay stuff > work properly, but otherwise there shouldn't be any big differences > between ubuntu and debian that are relevant for your specific situation. > > > -- > Best Regards, > Alexander Zangerl > IT Engineer > > BREATHE-SAFE intelligent cabin air filtration > Keeps your lungs and cabin dust free! > 290 Beatty Road, Archerfield QLD 4108 Australia, > Tel: +61 7 3276 7833 M. +61 415 482 341 E. [email protected] > <javascript:> > -- 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/7a911b51-8e20-4f8a-836a-31ace515e07c%40googlegroups.com.
