RE: [beagleboard] where is capemgr?

[Clark Briggs]

Robert,
Thanks.
I have spent a good bit of time with the robotics cape through working with 
James Strawson. He has constructed a very good set of aps and library for 
newbies to use.  Those are his main constituents, IMHO.
I have been using his board without his code base with his help. He and I 
differ on certain value judgements, like using mmap for I/O access. So...
If I'm not using his libraries and want to start capemgr and manually export 
and use BBB I/O and robotics cape I/O, how to do that?
I tried using systemctl to start capemgr.service but don't see any results but 
don't know where its gripes would get posted.
Clark

-Original Message-
From: Robert Nelson [mailto:robertcnel...@gmail.com] 
Sent: Tuesday, July 11, 2017 12:37 PM
To: Beagle Board <beagleboard@googlegroups.com>
Cc: Clark Briggs <clark.bri...@ata-e.com>
Subject: Re: [beagleboard] where is capemgr?

On Tue, Jul 11, 2017 at 2:28 PM,  <clarkbriggs...@gmail.com> wrote:
> After watching the great progress, I started in. I have the 3/19/2017 
> latest image with apt-get upgrades running on a Rev C BBB with a Rev C 
> Robotics Cape. All in all, the process worked well.  But I can't find 
> capemgr. I went looking for it because I want to access analog I/O and 
> other stuff. Recent emails from here-ish say capemgr is supposed to be 
> in /sys/devices/platform but not.  To get analog I/O, I put 
> "cape_enable=bone_capemgr.enable_partno=BB-ADC" in uEnv.txt, but no 
> /sys/bus/iio.
> some info
> debian@sim15:~$ uname -a
> Linux sim15 4.4.54-ti-r93 #1 SMP Fri Mar 17 13:08:22 UTC 2017 armv7l 
> GNU/Linux debian@sim15:~$ cat /etc/dogtag BeagleBoard.org Debian Image 
> 2017-03-19 debian@sim15:~$ systemctl status capemgr.service ● 
> capemgr.service - Cape Manager Service
>Loaded: loaded (/lib/systemd/system/capemgr.service; enabled; 
> vendor
> preset: enabled)
>Active: inactive (dead) since Tue 2017-07-11 18:46:54 UTC; 32min ago
>   Process: 4598 ExecStart=/bin/sh /opt/scripts/boot/capemgr.sh 
> (code=exited,
> status=0/SUCCESS)
>  Main PID: 4598 (code=exited, status=0/SUCCESS) Jul 11 18:46:53 sim15 
> systemd[1]: Starting Cape Manager Service...
> Jul 11 18:46:54 sim15 systemd[1]: Started Cape Manager Service.

The BB + Robotic Cape boots a special device tree binary, thus capemgr is 
disabled. the librobotic library expects this combination to have things setup 
a certain way, as it utilzes /dev/mem to access the gpio/adc/etc.

As I don't have that cape, and it's still not listed for sale, this isn't going 
to change anytime soon.

Regards,

--
Robert Nelson
https://rcn-ee.com/

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[beagleboard] RE: [beagle-alpha] Re: Quick update regarding BeagleBone Blue documentation

[Clark Briggs]

Jason,
I’ve been reading/lurking aka not running one.
Trouble shooting says ssh uses root and blank. I thought that was different now.
Ok, maybe that section is not in getting started. But check it.
Clark

From: beagle-al...@googlegroups.com [mailto:beagle-al...@googlegroups.com] On 
Behalf Of Jason Kridner
Sent: Friday, May 19, 2017 10:16 AM
To: James Strawson 
Cc: beagleboard@googlegroups.com
Subject: [beagle-alpha] Re: Quick update regarding BeagleBone Blue documentation

I think I've completed the getting-started portion and now need to move to 
updating bone101.

Everyone please look at 
http://jadonk.github.io/beaglebone-getting-started/START.htm and let me know if 
anything needs further adjustment on that page itself.

On Fri, May 5, 2017 at 9:11 PM James Strawson 
> wrote:
I have pinouts listed in the individual manual pages for encoders, i2c, uart, 
etc. Diagrams would be better but the info is here.

http://strawsondesign.com/#!manual-encoders
http://strawsondesign.com/#!manual-i2c
http://strawsondesign.com/#!manual-spi
http://strawsondesign.com/#!manual-uart
http://strawsondesign.com/#!manual-adc


Dept. Mechanical & Aerospace Engineering
University of California, San Diego

On Fri, May 5, 2017 at 11:19 AM, Jason Kridner 
> wrote:
I'm still not making that much headway in the Blue documentation at the moment, 
but I figure I can at least make an FAQ to help some new users.

https://github.com/beagleboard/beaglebone-blue/wiki/Frequently-Asked-Questions-(FAQ)

The big thing to point out, however, is that a ton of good documentation is 
already at http://www.strawsondesign.com/#!manual-install.

I think the big thing missing right now is a good guide for the connector 
pinouts that avoid needing to reference the schematic.

For my work-in-progress update on the getting-started page, see 
http://jadonk.github.io/beaglebone-getting-started/START.htm.

Patches welcome.
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