[beagleboard] Re: Flir Lepton 3 and I2C

[Davide Aguiari]

I solved this problem by editing 
Lepton3_BBB/grabber_lib/Lepton_SDK/src/bbb_I2C.c 
(or rasp_I2C.c) where it uses open("/dev/i2c-2  ) instead of libmpsse.

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Re: [beagleboard] PHP installation problem

[Stuart Longland]

On 18/12/17 03:35, pmi.inter...@gmail.com wrote:
> but php -v still does not work successfully.  
> 
> If there is any advice I would be pleased to hear it.

Just did a quick look on packages.debian.org… Debian 9 (aka "stretch")
seems to provide PHP v7:

https://packages.debian.org/stretch/php-cli (virtual package)
https://packages.debian.org/stretch/php7.0-cli (actual binary)

It lists both as being in the main "stretch" repository, as opposed to
being in "backports" or other repositories, so they *should* be directly
install-able.

Maybe try `apt-get install php7.0-cli`?
Did you try running `apt-get update` first?
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I haven't lost my mind...
  ...it's backed up on a tape somewhere.

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Re: [beagleboard] PocketBeagal Debian internet over macOS 10.13.2 USB host? (internet over USB)

[Stuart Longland]

On 18/12/17 01:57, Jon Pellant wrote:
> I am able to 'screen' into the PB (pocketbeagle). I am loosely trying to
> follow this video; however, this video  is
> 4+ years old and not my environment. For example, Debian does not have
> the 'udhcpc' command.

No expert on what you're trying to achieve, but it should be possible to
substitute `udhcpc` for `dhclient`, which should be more standard.

IIRC `udhcpc` is a Busybox module, so if that's really a requirement,
you might be able to get by, by installing `busybox`.
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[beagleboard] PHP installation problem

[pmi . internal]

I recently have tried starting with a newer image:
bone-debian-9.2-iot-armhf-2017-10-10-4gb.img

on a rev C BeagleBoneBlack.

I have been trying to build it back to the same level as I had before, 
adding the PRU libraries, ntpdate, and socket.  Now I find that the php 
files I have been using on the previous image no longer work.  

I tried:
php -v  
  and get the following...
-bash: php: command not found

I tried to add php using:
sudo apt-get install php5-common libapache2-mod-php5 php5-cli

but I get:

Package libapache2-mod-php5 is not available, but is referred to by another 
package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

E: Package 'php5-common' has no installation candidate
E: Package 'libapache2-mod-php5' has no installation candidate
E: Package 'php5-cli' has no installation candidate

So I then tried 

debian@beaglebone:/var/www/html$ sudo apt-get install php5.6
Reading package lists... Done
Building dependency tree
Reading state information... Done
Note, selecting 'php5.6-json' for regex 'php5.6'
Note, selecting 'php5.6-common' for regex 'php5.6'
0 upgraded, 0 newly installed, 0 to remove and 42 not upgraded.

but php -v still does not work successfully.  

If there is any advice I would be pleased to hear it.

Thanks in advance.
Alan

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[beagleboard] PocketBeagal Debian internet over macOS 10.13.2 USB host? (internet over USB)

[Jon Pellant]

Environment: 

   - Host: MacBookPro
   - OS: macOS 10.13.2
   - board: pocketbeagle
   - boardOS: Debian 9 IoT

I am able to 'screen' into the PB (pocketbeagle). I am loosely trying to 
follow this video; however, this video  is 4+ 
years old and not my environment. For example, Debian does not have the 
'udhcpc' 
command.

After a few minutes, the macOS network preferences shows a warning 
regarding the IP self assignment of the PB:



This is not consistent with the documentation. Also, the warning explicitly 
says that due to this, the PB will not be able to connect to the internet.






Also note that I have added a default route per instructions and still not 
ability to ping Google DNS.

Thoughts?


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[beagleboard] How To Turn Off SSID Broadcasting

[r2cochran2]

How can I turn off SSID broadcasting by my device? I've disabled tethering 
through connman. Now I would like to stop the access point from 
broadcasting its SSID.


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[beagleboard] How can I read PPM RC signal and use telemetry radio on the BBBlue?

[dhruvlaad]

Which port should I use to read a PPM RC Signal on the BBBlue? Will the DSM 
port work? Also, how can I use a Telemetry radio along with the BBBlue?

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Re: [beagleboard] Re: PocketBeagles are Unstable

[Jason Kridner]

Thanks a lot for this analysis. I will update the image tomorrow as we try to 
root source the problem on the old images. 

> On Dec 17, 2017, at 4:10 PM, Graham  wrote:
> 
> Some further information.
> 
> I have been unable to get your latest Stretch 9.3 IoT image to fail and 
> autonomously reboot, when powered by Vin (P1-pin1)
> ie.:" bone-debian-9.3-iot-armhf-2017-12-10-4gb.img"
> 
> I am starting an extended test today, and letting two PBs run for the rest of 
> the week, on this version.
> Same power supply, no added bulk capacitance on Vin.
> 
> Your recommended PB release version 2017-10-10 definitely does randomly 
> reboot when Vin powered, as do all the Stretch 9.2 weeklies up to Dec 03.
> that is,
> bone-debian-9.2-iot-armhf-2017-10-10-4gb.img 
> through
> bone-debian-9.2-iot-armhf-2017-12-03-4gb.img
> 
> As far as your questions about my bench power supply, noise/ripple on the 
> supply is at floor of scope's ability to measure, ie, < 12 mV.
> Regulation of bench supply, less than 10 mV droop from 0.0A to 1.0A
> Voltage set at 5.00 Volts, current limiter set at 5A, so out of the circuit.
> 
> Adding or deleting bulk capacitance (100 uF tantalum) at P1-pin makes no 
> difference in the behavior.
> 
> I am convinced that this is not a supply side power problem, and is some kind 
> of software issue, hopefully already resolved in Stretch 9.3.
> 
> --- Graham
> 
> ==
> 
> 
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Re: [beagleboard] Re: PocketBeagles are Unstable

[Robert Nelson]

On Sun, Dec 17, 2017 at 3:10 PM, Graham  wrote:
> Some further information.
>
> I have been unable to get your latest Stretch 9.3 IoT image to fail and
> autonomously reboot, when powered by Vin (P1-pin1)
> ie.:" bone-debian-9.3-iot-armhf-2017-12-10-4gb.img"
>
> I am starting an extended test today, and letting two PBs run for the rest
> of the week, on this version.
> Same power supply, no added bulk capacitance on Vin.
>
> Your recommended PB release version 2017-10-10 definitely does randomly
> reboot when Vin powered, as do all the Stretch 9.2 weeklies up to Dec 03.
> that is,
> bone-debian-9.2-iot-armhf-2017-10-10-4gb.img
> through
> bone-debian-9.2-iot-armhf-2017-12-03-4gb.img
>
> As far as your questions about my bench power supply, noise/ripple on the
> supply is at floor of scope's ability to measure, ie, < 12 mV.
> Regulation of bench supply, less than 10 mV droop from 0.0A to 1.0A
> Voltage set at 5.00 Volts, current limiter set at 5A, so out of the circuit.
>
> Adding or deleting bulk capacitance (100 uF tantalum) at P1-pin makes no
> difference in the behavior.
>
> I am convinced that this is not a supply side power problem, and is some
> kind of software issue, hopefully already resolved in Stretch 9.3.

Hi Graham, what was the kernel on the working and last 'broken" one?

uname -r

Smells like a random change fixed something, i'd like to know what
that was... Such that when i push it mainline (kernel.org)

(it might have been the v4.4.x-ti -> v4.9.x-ti?)

Regards,


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

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Re: [beagleboard] Re: PocketBeagles are Unstable

[Graham]

Some further information.

I have been unable to get your latest Stretch 9.3 IoT image to fail and 
autonomously reboot, when powered by Vin (P1-pin1)
ie.:" bone-debian-9.3-iot-armhf-2017-12-10-4gb.img"

I am starting an extended test today, and letting two PBs run for the rest 
of the week, on this version.
Same power supply, no added bulk capacitance on Vin.

Your recommended PB release version 2017-10-10 definitely does randomly 
reboot when Vin powered, as do all the Stretch 9.2 weeklies up to Dec 03.
that is,
bone-debian-9.2-iot-armhf-2017-10-10-4gb.img 
through
bone-debian-9.2-iot-armhf-2017-12-03-4gb.img

As far as your questions about my bench power supply, noise/ripple on the 
supply is at floor of scope's ability to measure, ie, < 12 mV.
Regulation of bench supply, less than 10 mV droop from 0.0A to 1.0A
Voltage set at 5.00 Volts, current limiter set at 5A, so out of the circuit.

Adding or deleting bulk capacitance (100 uF tantalum) at P1-pin makes no 
difference in the behavior.

I am convinced that this is not a supply side power problem, and is some 
kind of software issue, hopefully already resolved in Stretch 9.3.

--- Graham

==


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[beagleboard] multiple PWM ..

[richatnstar via BeagleBoard]

Regarding previous post (Multiple PWM), I'm running Debian 9 -- Linux arm 
4.9.61-bone8

thx

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[beagleboard] Problem with multiple PWM overlays

[richatnstar via BeagleBoard]

Hello,

  I'm trying to use 3 PWM channels for RGB Led control -- I can install one 
overlay successfully & drive a (single color) LED changing the period & 
duty cycle.








*root@arm:~# sudo echo BB-PWM0 > 
/sys/devices/platform/bone_capemgr/slots
  
[  162.833955] bone_capemgr bone_capemgr: part_number 'BB-PWM0', version 
'N/A'[  162.841500] bone_capemgr bone_capemgr: slot #4: override[  
162.847210] bone_capemgr bone_capemgr: Using override eeprom data at slot 
4[  162.854545] bone_capemgr bone_capemgr: slot #4: 'Override Board 
Name,00A0,Override Manuf,BB-PWM0'[  162.897244] bone_capemgr bone_capemgr: 
slot #4: dtbo 'BB-PWM0-00A0.dtbo' loaded; overlay id #0root@arm:~# *
I next try to install another PWM overlay with the following results ---

r









*oot@arm:~# sudo echo BB-PWM1 > 
/sys/devices/platform/bone_capemgr/slots
  
[  424.900238] bone_capemgr bone_capemgr: part_number 'BB-PWM1', version 
'N/A'[  424.907757] bone_capemgr bone_capemgr: slot #5: override[  
424.913369] bone_capemgr bone_capemgr: Using override eeprom data at slot 
5[  424.920787] bone_capemgr bone_capemgr: slot #5: 'Override Board 
Name,00A0,Override Manuf,BB-PWM1'[  424.954871] OF: changeset: add_property 
failed @/__symbols__/pinctrl_spec[  424.962243] OF: Error applying 
changeset (-17)[  424.971503] bone_capemgr bone_capemgr: slot #5: Failed to 
create overlayecho: write error: File existsroot@arm:~# *
Shouldn't the configuration be separate between the overlays so they can 
operate independently? I get the same result with any combination.


Thanks for the help -- rich..

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