LOL i had this issue on a bunch of boards i bought.
They misprogrammed the eeprom. you will need to write the correct info into
the eeprom. When i notified the company that made the boards they did
not give a shit.
On 5/18/2020 6:47 AM, Daniel Kulp wrote:
This looks like it's being detected as a BBG Wireless and not a
regular BBG. None of those pins are available on the BBGW.
Dan
On Saturday, May 16, 2020 at 9:29:10 PM UTC-4, [email protected] wrote:
Hi,
I'm trying to fix an error in my beaglebone green in which several
PRU pin directories are not available. I'm using image
4.19.50-ti-r20. I'm using, Debian 10.2 which I have experienced as
working well with the BBB and BBG. The pins directories that
don't show up are a sub-set of the 35 or so real time PRU I/O
pins. These pins are supposed to be available are subdirectories
of /sys/devices/platform/ocp/, as follows:
ocp:P8_11_pinmux
ocp:P8_12_pinmux*
ocp:P8_14_pinmux
ocp:P8_15_pinmux*
ocp:P8_16_pinmux
ocp:P8_17_pinmux
ocp:P8_18_pinmux
ocp:P9_28_pinmux*
ocp:P9_29_pinmux*
ocp:P9_30_pinmux*
ocp:P9_31_pinmux*
The ones (6 of them) with the asterisk are the real time PRU Input
/ Output pins that I really really need for my application.
Notes:
This is on the Beaglebone Green, not the Beaglebone Black, I'll
check if the same problem shows up on BBB as well a little later...
This is image 4.19
I have already gone into the /boot/uEnv.txt file and disabled the
following: HDMI, audio, emmc. But I still have this same problem.
Is this a bug in the kernel / image ?
In reviewing page 211 of Derek Molloy's Exploring Beaglebone book,
I can't see a pattern of all these pins belonging to a certain
interface, so I cannot even guess what interface might be causing
them to become not available.
Please let me know if you have any ideas on this.
Thanks!!
On Tuesday, January 24, 2017 at 6:42:30 AM UTC-6, 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
<https://www.diffchecker.com/BivnZllE>
Is this a bug? or I was doing wrong somewhere?
Thanks!
Lindo
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