Hi you should change configuration of pins from HDMI to SPI type this command in terminal: sudo nano /boot/uEnv.txt then you should remove # of disable-uboot-overlay-video=1 then you can use from SPI pins
On Tuesday, January 24, 2017 at 4:12:30 PM UTC+3:30, Lindo wrote: > > Hi, > > I'm trying to use cdsteinkuehler's beaglebone-universal-io > <https://github.com/cdsteinkuehler/beaglebone-universal-io> to config > P9_28-31 as spi interface. After loading cape-universal overlay first, I > got the "P9_28 pinmux file not found!" message when I configure P9_28 pin > > config-pin P9.28 spi > P9_28 pinmux file not found! > cape-universala overlay not found > run "config-pin overlay cape-universala" to load the cape > > > I think P9.28 might not actually exported, and then I found that the > cape-univeral-00A0.dts file on the github website is different with > RobertCNelson's version(I found this file under > /opt/source/bb.org-overlays/src/arm/). see detail here: > https://www.diffchecker.com/BivnZllE > > Is this a bug? or I was doing wrong somewhere? > > Thanks! > Lindo > > -- 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 beagleboard+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/e8282a14-66f8-4b6f-8835-b8322c1872b6%40googlegroups.com.