Re: [beagleboard] any Ubuntu version available with DSP support for simple use?

[Clemens Arth]

Hi,

as promised, I uploaded the 12.04.5 sdcard image to our server as four 
parts RAR without password (requires a 2GB USB stick) for others to play 
around.


*part1 **part2* 


*part3 part4 *
Backup:
$ dd if=/dev/sdb of=sd.img bs=4M
Restore:

$ dd if=sd.img of=/dev/sdb bs=4M
The credentials are still: ubuntu/temppwd. Once the system is up AND 
connected to the host PC through the mini-USB port, the beagle should be 
accessible over the USB Gadget as 192.168.7.2. The serial can also be used 
using minicom or something similar.

Regards
Clemens

Am Montag, 23. Februar 2015 08:11:18 UTC+1 schrieb Clemens Arth:
>
> Hi again,
>
> so I think the image runs pretty stable, as far as I can see from playing 
> around with it half a day. There are a few minor issues here, and I hope 
> you can help me out.
>
> 1) the ethernet is not working. I have no idea how to get that to work. 
> Insmod of the driver does not do anything; nor any external powering. Is 
> there anything going wrong, probably with the device tree loaded through 
> startup?
> 2) which is even more annoying is that the board does not recognize a 
> single USB device. I can get output over HDMI to a VGA screen, but dmesg 
> does not report anything on connected USB devices - as if the USB hub was 
> completely dead.
>
> I think I can live without the ethernet, as long as the usb gadget works, 
> but living without USB is a pita.
>
> Clemens
>
> Am Samstag, 21. Februar 2015 22:47:51 UTC+1 schrieb Clemens Arth:
>>
>> Ok, so after a while I figured out how to get some working setup. Here's 
>> a rough sketch how:
>>
>>
>>- retrieve 12.10 image and 12.04 image from 
>>http://ynezz.ibawizard.net/beagleboard
>>- extract 12.10 image to sdcard; copy off the contents of the boot 
>>partition (p1), the lib/modules and /etc/network/interfaces from the 
>> rootfs
>>- extract 12.04 image to sdcard; overwrite previously stored 
>>files/folders - that lets you boot 12.04 with a 12.10 kernel and 
>> overcomes 
>>the 12.04 misconfiguration of uboot
>>- boot into 12.04
>>- configure usb0 on host computer to allow internet access
>>- run apt-get update/upgrade
>>- copy back the 12.04 boot folder contents to p1 
>>- reboot
>>
>> The result is a correctly booting and working copy of 12.04.05 (as of 
>> today). I followed the rest of the instructions from 
>> http://ash-wilding.blogspot.co.at/2013/08/tutorial-using-dsp-on-beagleboard.html
>>  
>> and got the dummy dsp test working. 
>>
>> I'm still doing some testing on the sd card image; as soon as I'm sure it 
>> works I will put it somewhere for all those that are interested in "playing 
>> around".
>>
>>
>> Am Samstag, 21. Februar 2015 13:57:37 UTC+1 schrieb Clemens Arth:
>>>
>>> Ok, that really sucks... after fixing the network over usb, any sort of 
>>> update fails because 12.10, as well as 13.04 and 13.10 have gone EOL, so no 
>>> more support from port.ubuntu.com.
>>>
>>> Going back to 12.04, I was hoping to have support still. Using this 
>>> image (cloned from your original repo) 
>>> 
>>>  
>>> uboot hangs with some "invalid partition" message. Seems that the old 
>>> config is not compatible with newer bootloaders.
>>>
>>> Any ideas?
>>>
>>>
>>> Am Freitag, 20. Februar 2015 22:57:05 UTC+1 schrieb Clemens Arth:

 Ok, so after playing around for a while, I went back to this page 
 
  
 as I thought it might be one of the most recent points to start. However, 
 I 
 already fail to get eth0 working on the device, no matter which rootfs I 
 use. The smsc95xx driver is loaded, but eth0 simply does not show up. I 
 read 

 that
  
 there might be issues with the network, but none of the tips help. No luck 
 so far...

 Am Freitag, 20. Februar 2015 16:03:22 UTC+1 schrieb Clemens Arth:
>
> Am Freitag, 20. Februar 2015 15:35:02 UTC+1 schrieb RobertCNelson:
>>
>> On Fri, Feb 20, 2015 at 5:47 AM, Clemens Arth  
>> wrote: 
>> > Hi, 
>> > 
>> > I just browsed all the forums and did not really come to a 
>> reasonable 
>> > conclusion, so here are my questions regarding my Beagleboard-xM: 
>> > 
>> > 1) is there any ubuntu version around that has the DSP support 
>> built in? 
>> > 2) the last version that (I remember) somewhat worked ok was 12.04, 
>> with 
>> > support from ti-dev launchpad. Has anyone got that version running 
>> ok 
>> > recently? 
>> > 3) I used trusty from http://elinux.org/BeagleBoardUbuntu but I 
>> can't 
>> > neither get an ub

Re: [beagleboard] Re: Beaglebone & Mac OSX = NIGHTMARE

[Andrew P. Lentvorski]

Unlike the original poster, I'm not taking offense.  People are doing the 
best they can.

However, I will say that, as a user, spelunking through BeagleBone Black 
documentation has been kind of painful.

If you can stay at the Python/Javascript level, things are quite decent. 
 Even basic Linux stuff is fine.

However, once you need to get down into the Linux device level, the number 
of people who really understand what is going on drops very quickly.  And I 
suspect those vitally important people are so overwhelmed doing real work 
or paid work and that they really don't have the bandwidth for random 
documentation and tutorial construction.  And, even if they did, how many 
people would it benefit?  Sure, I'd love to have some really detailed 
tutorials since most of them older than even 6 months generally don't work, 
but if there are only 5 of us who could make use of those tutorials, is it 
a good use of time?  Especially when there is so much flux right now?

I see about 30 BeagleBone Black compatible capes; the fact that some of 
those don't work directly under Debian shows that even highly knowledgable 
people don't understand all the implications.  So, that bounds the number 
of people who can talk intelligently about kernel device stuff (and that's 
of the right order of magnitude for views).  That's not a very big pool to 
draw from. 


I do agree, however, that the original poster is out of line.  Anybody who 
does real embedded development on OS X knows to keep Windows XP, Windows 7, 
and Linux virtual machines on tap.  If it works directly on OS X, that's a 
nice bonus, but counting on it is just asking for trouble--and OS X 10.10 
has been a general disaster on many fronts.






On Tuesday, February 24, 2015 at 6:10:51 PM UTC-8, RobertCNelson wrote:
>
> On Tue, Feb 24, 2015 at 8:00 PM, Andrew P. Lentvorski  > wrote: 
> > To be fair, ranting at least got him a response. 
> > 
> > Lots of people seem to be asking questions and I see like single digit 
> views 
> > and no responses. 
> > 
> > It feels like a ghost town in here. 
>
> Well the unfortunate side of open source..  Most developers are not 
> paid to answer just questions. Instead they are here on their own free 
> time.  So unless you entice them with an interesting topic/question, 
> they aren't going to take time to answer it. 
>
> Sorry if this offends anyone. 
>
> btw, google groups also emails these "topics" to registered users, so 
> just because the "forum" interface shows a few "views" doesn't 
> actually show the whole story..  Some of us read every 'email' and 
> answer where we can. 
>
> Regards, 
>
> -- 
> Robert Nelson 
> http://www.rcn-ee.com/ 
>
>
 

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[beagleboard] Re: Beaglebone & Mac OSX = NIGHTMARE

[cl]

Robert Nelson  wrote:
> On Tue, Feb 24, 2015 at 8:00 PM, Andrew P. Lentvorski  
> wrote: 
> > To be fair, ranting at least got him a response.
> >
> > Lots of people seem to be asking questions and I see like single digit views
> > and no responses.
> >
> > It feels like a ghost town in here.
> 
> Well the unfortunate side of open source..  Most developers are not
> paid to answer just questions. Instead they are here on their own free
> time.  So unless you entice them with an interesting topic/question,
> they aren't going to take time to answer it.
> 
> Sorry if this offends anyone.
> 
> btw, google groups also emails these "topics" to registered users, so
> just because the "forum" interface shows a few "views" doesn't
> actually show the whole story..  Some of us read every 'email' and
> answer where we can.
> 
Quite, from where I'm looking (the Gmane usenet interface to the
mailing list) just about every message/posting here gets some sort of
response, there are very few with no response.

-- 
Chris Green
·

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[beagleboard] Streaming & Recording at the same time with BeagleBone Black Rev.C

[RWIN]

Hi everyone !

I'm totally new in working with the BBB Rev.C. To get more familiar with 
this dev board, I would like to make a nice project with it.
It may be a little bit complex, but I have a lot of time to do it, and as 
it uses a lot of parts of the BBB I think it's nice to start with it even 
if it's gonna be tough ^^

Basically, I would like to make a small device that is kind of a 
surveillance camera, so I would like to stream the video. I would like to 
stream it on a custom app for Android that I will make. For the camera I'm 
still hesitating betweek a classic USB webcam (720p @30fps but I can go 
slightly lower) or a camera that  can be plugged on the GPIO ports (I saw 
some of them for the Raspberry Pi).
But I would like it to be able to record the video while it's streaming. I 
think this will be the harder part as I will have to really optimize the 
code to get decent results.

And for the bonus, I would like the camera to start streaming after you 
have pressed a button.

I know it's very similar to what a lot of people have done (for the 
streaming part), but I didn't find anything that looks close to my request, 
recording & streaming at the same time.

I don't know if it's the right board to do it, maybe you know some better 
hardware to do it ?
Do you have any idea for the recording/streaming process ? I don't know 
openCV will make it...

Thanks a lot in advance for every answer this post will receive :)

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[beagleboard] Re: Streaming & Recording at the same time with BeagleBone Black Rev.C

[RWIN]

And I forgot to mention that I'm still hesitating between saving the video 
files on an SD Card connected to the Beaglebone, or save the video with the 
Android app. 

What do you think ? Thanks :)

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[beagleboard] Re: Can connect to BBB in Windows but not Ubuntu

[Gary McKinney]

In Ubuntu check to see if there is an interface for the USB connection to 
the BBB. (ifconfig) - if not you need to install the usbnet driver to 
access the BBB through the usb port with IP connectivity.  If you do see 
the interface make sure it is set to  192.168.7.1/24 otherwise it will not 
be on the right network to communicate with the BBB.

Hope this helps...

gm...

On Tuesday, February 24, 2015 at 12:55:40 PM UTC-5, Alex Fuhr wrote:
>
> I just recently got a Beaglebone Black Rev C, and have tried for a while 
> to do the "Getting Started" guide in Ubuntu, and cannot seem to get the 
> network connection to work. I have tried running the mkudevrule script and 
> updating my kernel to 3.16, none of these have worked.
>
> To verify that it is not the Beaglebone's issue, I booted into Windows, 
> installed the drivers linked on the page, and was able to easily get a web 
> server. What might I be doing wrong in Ubuntu?
>

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Re: [beagleboard] Re: How to enable all i2c

[Lennart ohnenam]

@Tux: (Man muss das Kind ja beim Namen nennen ;) ) I don't have the entire
path. I'm missing the bone_capemgr.9

@Richard: I am using ubuntu on the Beagleboard xM. Any chance you know
where to find it on this configuration?

2015-02-24 16:05 GMT+01:00 Richard-tx :

> I think that the issue stems from older versions of debian based linux and
> the newer version that use a device tree.
>
>
> If the echo statement fails then:
>
> To enable the I2c-1 on the BeagleBone Black Rev A, B and C:
>
>1. Rev A/B: Open the file /media/BEAGLEBONE/uEnv.txt in an editor
>(vim/nano)
>2. Rec C: Open the file /boot/uboot/uEnv.txt in an editor (vim/nano)
>3. Add the key "capemgr.enable_partno="
>4. Add the ports you want to enable, comma separated
>(BB-I2C0, BB-I2C1, etc)
>5. Reboot
>
> An example line looks like this:
> root@beaglebone:/dev# cat /media/BEAGLEBONE/uEnv.txt
> optargs=quiet drm.debug=7 capemgr.enable_partno=BB-I2C1
>
>
>
>
>
>
> On Thursday, November 13, 2014 at 9:13:51 PM UTC-6, ngocta...@gmail.com
> wrote:
>>
>> I use I2C-Tools to detect the i2c like:
>>
>> root@android:/ # i2cdetect -l
>>
>> i2c-1   i2c OMAP I2C adapterI2C
>> adapter
>> i2c-3   i2c OMAP I2C adapterI2C
>> adapter
>>
>> but in beablebone black(ver C), it has 3 i2c, so how to enable all.
>> please give me some advices
>>
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Re: [beagleboard] Physical Dimensions

[Gerald Coley]

AM43xx is not compatible with the AM335x. So if anything were done, it
would not be a BeagleBone. At this point, I have no plans to do anything
with that devcie.

Gerald

On Wed, Feb 25, 2015 at 1:24 AM, Giuseppe Iellamo  wrote:

> I know it's maybe too early, but aside the new (and very intresting x15)
> is there any plan for a new BeagleBone (am43xx based for example) ?
>
> Il giorno lunedì 23 febbraio 2015 13:33:07 UTC+1, Gerald ha scritto:
>>
>> Trying to keep it as small as possible, but it takes space for al the
>> stuff on the board.
>>
>> Gerald
>>
>>
>> On Sat, Feb 21, 2015 at 12:39 PM, Petr Krenzelok 
>> wrote:
>>
>>> OK, thanks for the clarification. I was just curious, if you are again
>>> splitting it between the xM kind of board and BBB form factor, e.g. one
>>> being a media oriented board, whereas other specialised for the
>>> automatition, etc. Anyway - looking forward to the x15 board!
>>>
>>> Petr
>>>
>>> Dne pátek 20. února 2015 18:28:50 UTC+1 Gerald napsal(a):

 Well, components take up space. More space is needed for those parts.
 Bigger processors 4x memory chips.More expansion pins, two RJ45, three USB3
 connectors, eSATA, two audio jacks.

 Trust me, there is no open space..

 Gerald


 On Fri, Feb 20, 2015 at 8:08 AM, Petr Krenzelok 
 wrote:

> Why so "big"? :-) It is even bigger than xM version. Will there be any
> new version of BBB format in future, or x15 is the new direction?
>
> Thanks,
> Petr
>
> Dne úterý 2. prosince 2014 19:53:37 UTC+1 Gerald napsal(a):
>>
>> It is larger than the NUC, About 4.2" x 4".
>>
>> I will try and get a picture when I can.
>>
>> Gerald
>>
>>
>> On Tue, Dec 2, 2014 at 10:52 AM, Justin Triplett <
>> justin@gmail.com> wrote:
>>
>>> Hello
>>>
>>> A few people at my hackerspace are pretty excited for X15.
>>>
>>> Could we see bottom pics of the current board?
>>> I think I see where the expansion headers are, but more pics would
>>> be appreciated.
>>>
>>> Sounds like it is pretty close to NUC size but not quite, it would
>>> be really awesome if you could pull that off.
>>> Either way I'm ready to fire up the laser cutter to make case as
>>> soon as we get all the physical dimensions. :)
>>>
>>> Thanks!
>>>
>>> --
>>> For more options, visit http://beagleboard.org/discuss
>>> ---
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>>>
>>
>>
>>
>> --
>> Gerald
>>
>> ger...@beagleboard.org
>> http://beagleboard.org/
>> http://circuitco.com/support/
>>
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 --
 Gerald

 ger...@beagleboard.org
 http://beagleboard.org/
 http://circuitco.com/support/

>>>  --
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>>>
>>
>>
>>
>> --
>> Gerald
>>
>> ger...@beagleboard.org
>> http://beagleboard.org/
>> http://circuitco.com/support/
>>
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-- 
Gerald

ger...@beagleboard.org
http://beagleboard.org/
http://circuitco.com/support/

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[beagleboard] Changing McBSP Registers on BBxM with eUbuntu

[lennartgardian]

Hi everybody,

I build an audiocodec daughterboard for the Beagleboard xM (BBxM) and now I 
would like to set up the registers of the OMAP3 - Processor so that the 
BBxM can communication with the audiocodec. As far as I could figure out, I 
will have to edit the kernel and recompile it, but I can't even find the 
file that I would have to edit. I even found a patch for Asoc that should 
add support ofmy Codec (CS42448). 

I am quite new to Linux and getting really desperate on this one. Can 
anyone tell me, in which file on an ubuntu system the mcBSP Registers are 
set, where I can find a good tutorial to change it and how to recompile the 
kernel? 

Any tiny bit of information would be really appreciated!

Thanks a lot!

Regards,

Lenni

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[beagleboard] Re: Reading from ADC hangs

[malaakso]

Thanks for the suggestion. I'll keep that in mind if I need higher sampling 
rates. However, I did find a way to read ADC through IIO so that it doesn't 
hang.

First set up the channels and the buffer through sysfs:

echo 1 > /sys/bus/iio/devices/iio\:device0/scan_elements/in_voltage0_en
echo 256 > /sys/bus/iio/devices/iio\:device0/buffer/length
echo 1 > /sys/bus/iio/devices/iio\:device0/buffer/enable

and then read from /dev/iio:device0. This way I can achieve about 8 kHz 
sampling rate with a single channel, 4 kHz with two channels and down to 
~300 Hz with all eight channels.

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[beagleboard] Re: Eclipse Juno Remote Debugging on Beaglebone

[sati . ks10]

hi i am very new to both eclipse and beaglebone. i got through the basic 
program "hello world". But the real problem i am facing is that i am not 
able to glow the LED of BBB kit. pls do help me. I have attached the 
screenshot of the problem i am getting.

Thanks in advance

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Re: [beagleboard] Re: Can connect to BBB in Windows but not Ubuntu

[Miguel Aveiro]

Look at the topic "Cannot SSH into BBB (or access 192.168.7.2 web page) 
from Linux". It was on this list about two weeks ago...


The guy used the command "dhclient eth2" to configure his eth2 IP in the 
same range of BBB usb port...



Miguel Aveiro

On 25-02-2015 08:29, Gary McKinney wrote:
In Ubuntu check to see if there is an interface for the USB connection 
to the BBB. (ifconfig) - if not you need to install the usbnet driver 
to access the BBB through the usb port with IP connectivity.  If you 
do see the interface make sure it is set to  192.168.7.1/24 otherwise 
it will not be on the right network to communicate with the BBB.


Hope this helps...

gm...

On Tuesday, February 24, 2015 at 12:55:40 PM UTC-5, Alex Fuhr wrote:

I just recently got a Beaglebone Black Rev C, and have tried for a
while to do the "Getting Started" guide in Ubuntu, and cannot seem
to get the network connection to work. I have tried running the
mkudevrule script and updating my kernel to 3.16, none of these
have worked.

To verify that it is not the Beaglebone's issue, I booted into
Windows, installed the drivers linked on the page, and was able to
easily get a web server. What might I be doing wrong in Ubuntu?

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Re: [beagleboard] Re: Beaglebone & Mac OSX = NIGHTMARE

[Robert Nelson]

On Wed, Feb 25, 2015 at 3:51 AM, Andrew P. Lentvorski  wrote:
> Unlike the original poster, I'm not taking offense.  People are doing the
> best they can.
>
> However, I will say that, as a user, spelunking through BeagleBone Black
> documentation has been kind of painful.
>
> If you can stay at the Python/Javascript level, things are quite decent.
> Even basic Linux stuff is fine.
>
> However, once you need to get down into the Linux device level, the number
> of people who really understand what is going on drops very quickly.  And I
> suspect those vitally important people are so overwhelmed doing real work or
> paid work and that they really don't have the bandwidth for random
> documentation and tutorial construction.  And, even if they did, how many
> people would it benefit?  Sure, I'd love to have some really detailed
> tutorials since most of them older than even 6 months generally don't work,
> but if there are only 5 of us who could make use of those tutorials, is it a
> good use of time?  Especially when there is so much flux right now?
>
> I see about 30 BeagleBone Black compatible capes; the fact that some of
> those don't work directly under Debian shows that even highly knowledgable
> people don't understand all the implications.  So, that bounds the number of
> people who can talk intelligently about kernel device stuff (and that's of
> the right order of magnitude for views).  That's not a very big pool to draw
> from.

Just a side note for any user who has a cape that doesn't work. First
what kernel are you running? (uname -r) The odd's are, you are either
running an older kernel, or one that's not setup to directly support
all capes.

Note, we are still adding capes to the 3.8 tree, for the upcoming
bone71, we've added:

https://github.com/ddrown/pps-gmtimer

I know we will never fully support "all", but we are chewing on each
one at time...

Here's the current list of overlays:

https://github.com/RobertCNelson/linux-stable-rcn-ee/tree/3.8.13-bone70/firmware/capes

Regards,

-- 
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http://www.rcn-ee.com/

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Re: [beagleboard] Re: Beaglebone & Mac OSX = NIGHTMARE

[Chad Baker]

Like Jason, I use a Mac every day to work with my BBB. I had no problems 
connecting with OSX 10.9 but 10.10 is another matter. When I installed 
the latest HoRNDIS package, my Mac started rebooting when I would attach 
my BBB to the usb port. Removing the package resolved the reboot. The 
only reliable ways that I have found are using ethernet and "screen 
/dev/tty.usbmodem* 115200". screen has many quirks, but is usable.

Chad


On 2/24/15 9:38 PM, Jason Kridner wrote:
I use a Mac with BeagleBone every day, but too many things break on 
10.10, with no relation to Beagle, for me to update. Joshua, the 
author of HoRNDIS, seems to have made a release to work with 10.10, so 
there doesn't seem to be enough info to provide a useful response.




On Feb 24, 2015, at 9:00 PM, Andrew P. Lentvorski > wrote:



To be fair, ranting at least got him a response.

Lots of people seem to be asking questions and I see like single 
digit views and no responses.


It feels like a ghost town in here.
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Re: [beagleboard] Physical Dimensions

[Giuseppe Iellamo]

Ok! Thanks for the reply!

Il giorno mercoledì 25 febbraio 2015 13:35:55 UTC+1, Gerald ha scritto:
>
> AM43xx is not compatible with the AM335x. So if anything were done, it 
> would not be a BeagleBone. At this point, I have no plans to do anything 
> with that devcie.
>
> Gerald
>
> On Wed, Feb 25, 2015 at 1:24 AM, Giuseppe Iellamo  > wrote:
>
>> I know it's maybe too early, but aside the new (and very intresting x15) 
>> is there any plan for a new BeagleBone (am43xx based for example) ?
>>
>> Il giorno lunedì 23 febbraio 2015 13:33:07 UTC+1, Gerald ha scritto:
>>>
>>> Trying to keep it as small as possible, but it takes space for al the 
>>> stuff on the board.
>>>
>>> Gerald
>>>
>>>
>>> On Sat, Feb 21, 2015 at 12:39 PM, Petr Krenzelok  
>>> wrote:
>>>
 OK, thanks for the clarification. I was just curious, if you are again 
 splitting it between the xM kind of board and BBB form factor, e.g. one 
 being a media oriented board, whereas other specialised for the 
 automatition, etc. Anyway - looking forward to the x15 board!

 Petr

 Dne pátek 20. února 2015 18:28:50 UTC+1 Gerald napsal(a):
>
> Well, components take up space. More space is needed for those parts. 
> Bigger processors 4x memory chips.More expansion pins, two RJ45, three 
> USB3 
> connectors, eSATA, two audio jacks.
>
> Trust me, there is no open space..
>
> Gerald
>
>
> On Fri, Feb 20, 2015 at 8:08 AM, Petr Krenzelok  
> wrote:
>
>> Why so "big"? :-) It is even bigger than xM version. Will there be 
>> any new version of BBB format in future, or x15 is the new direction?
>>
>> Thanks,
>> Petr
>>
>> Dne úterý 2. prosince 2014 19:53:37 UTC+1 Gerald napsal(a):
>>>
>>> It is larger than the NUC, About 4.2" x 4".
>>>
>>> I will try and get a picture when I can.
>>>
>>> Gerald
>>>
>>>
>>> On Tue, Dec 2, 2014 at 10:52 AM, Justin Triplett <
>>> justin@gmail.com> wrote:
>>>
 Hello

 A few people at my hackerspace are pretty excited for X15.

 Could we see bottom pics of the current board?
 I think I see where the expansion headers are, but more pics would 
 be appreciated.

 Sounds like it is pretty close to NUC size but not quite, it would 
 be really awesome if you could pull that off.
 Either way I'm ready to fire up the laser cutter to make case as 
 soon as we get all the physical dimensions. :)

 Thanks!

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>>>
>>>
>>>
>>> -- 
>>> Gerald
>>>  
>>> ger...@beagleboard.org
>>> http://beagleboard.org/
>>> http://circuitco.com/support/
>>>  
>>  -- 
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>
>
>
> -- 
> Gerald
>  
> ger...@beagleboard.org
> http://beagleboard.org/
> http://circuitco.com/support/
>  
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>>>
>>>
>>>
>>> -- 
>>> Gerald
>>>  
>>> ger...@beagleboard.org
>>> http://beagleboard.org/
>>> http://circuitco.com/support/
>>>  
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>>
>
>
>
> -- 
> Gerald
>  
> ger...@beagleboard.org 
> http://beagleboard.org/
> http://circuitco.com/support/
>  

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[beagleboard] Different Linux images

[inigomartinez]

I have a debian (jessie) installed in a BeagleBone Black board using the 
RCN (http://repos.rcn-ee.net/debian/) repository. I noticed that there are 
several linux images there. For example:

linux-image-3.19.0-rc7-armv7-lpae-x0 - Linux kernel, version 
3.19.0-rc7-armv7-lpae-x0
linux-image-3.19.0-rc7-armv7-x3 - Linux kernel, version 3.19.0-rc7-armv7-x3
linux-image-3.19.0-rc7-bone2 - Linux kernel, version 3.19.0-rc7-bone2
linux-image-3.19.0-rc7-bone3 - Linux kernel, version 3.19.0-rc7-bone3

What are the differentes between each kernel image ?What do the different 
suffixes (lpae, x0, x3, bone2, bone3) stands for ?

Best regards,

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[beagleboard] U-Boot Bootloader Concepts

[kondaveetiarungopal]

Hi,

Iam new to U-boot source code.

Please tell me how to understand the flow of U-Boot bootloader from scratch 
for Beagle board xm.
and how to port U-boot bootloader for the beagle board xm and how to test 
after porting.
Please tell me some suggestions about my project.




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[beagleboard] UART Cable

[kondaveetiarungopal]

Hi,

Iam facing one problem.i have beagle board xm.
recently due to some problems my uart cable is break down and it is unable 
to do communication.after i did some soldering but it is unable to do 
communication.
Please tell me how to correct this one and what type of cable i need to use 
for communication.
I want to do communication from usb to serial communication.

Please tell me the cables and hardware issues.

Reg,

K.Arungoal

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Re: [beagleboard] Different Linux images

[Robert Nelson]

On Wed, Feb 25, 2015 at 7:28 AM,   wrote:
> I have a debian (jessie) installed in a BeagleBone Black board using the RCN
> (http://repos.rcn-ee.net/debian/) repository. I noticed that there are
> several linux images there. For example:
>
> linux-image-3.19.0-rc7-armv7-lpae-x0 - Linux kernel, version
> 3.19.0-rc7-armv7-lpae-x0
> linux-image-3.19.0-rc7-armv7-x3 - Linux kernel, version 3.19.0-rc7-armv7-x3
> linux-image-3.19.0-rc7-bone2 - Linux kernel, version 3.19.0-rc7-bone2
> linux-image-3.19.0-rc7-bone3 - Linux kernel, version 3.19.0-rc7-bone3
>
> What are the differentes between each kernel image ?What do the different
> suffixes (lpae, x0, x3, bone2, bone3) stands for ?

armv7-lpae-x:

lpae = 
https://en.wikipedia.org/wiki/ARM_architecture#Large_Physical_Address_Extension

It was added with the Cortex-A15, The Cortex-A7,A12,A15,A17 all have it..

Devices which don't have it, Cortex-A5,A8,A9 will NOT boot with it enabled..

Right now, this only supports the omap5_uevm, BeagleBoard-X15...

armv7-x:
general image that'll work with most boards...

bone:
tweaked config for the BeagleBone family (am335x), which enable a few
things we can't enable on the general image due to errata on the older
Cortex-A8 used on the BeagleBoard/Beagleboard-xM.. (Which allow us to
get a little more performance out of the am335x)

Regards,

-- 
Robert Nelson
http://www.rcn-ee.com/

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Re: [beagleboard] beaglebone black fails horribly windows 8

[Robert Nelson]

On Wed, Feb 25, 2015 at 9:53 AM, Schrodingers Cat
 wrote:
> I already used the BBB on this computer 1 year ago, and it worked (after
> alot of diffuculties off course)
>
> Now all of a sudden it seems impossible to connect to my BBB via teraterm or
> putty.
>
> I tried SSH  over USB, but it can't find the board. The ip 192.168.7.2
> cannot be found (- getting started-).
>
> I don't see any serial ports.
>
> I reïnstalled the drivers, multiple times, but windows keeps saying there
> are no drivers for the CDC serial device that appears in my device manager.
> When I update I browse to the folder containing install files, I update and
> then suddenly I get the report that some files coudn't be found by windows.
>
> I fail to understand what is going on here, its very strange.
>
> There appear to be problems with the linux development network en serial
> drivers (although I installed the latest version).
>
> ps: windows recognises the BBB as a memory though.

We now have signed drivers for windows:

https://github.com/beagleboard/beaglebone-getting-started/tree/master/Drivers/Windows

Depending on which image is installed to your bbb, you might have been
trying to install a very old version.

Regards,

-- 
Robert Nelson
http://www.rcn-ee.com/

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[beagleboard] beaglebone black fails horribly windows 8

[Schrodingers Cat]

I already used the BBB on this computer 1 year ago, and it worked (after 
alot of diffuculties off course)

Now all of a sudden it seems impossible to connect to my BBB via teraterm 
or putty.

I tried SSH  over USB, but it can't find the board. The ip 192.168.7.2 
cannot be found (- getting started-).

I don't see any serial ports.

I reïnstalled the drivers, multiple times, but windows keeps saying there 
are no drivers for the CDC serial device that appears in my device manager. 
When I update I browse to the folder containing install files, I update and 
then suddenly I get the report that some files coudn't be found by windows.

I fail to understand what is going on here, its very strange. 

There appear to be problems with the linux development network en serial 
drivers (although I installed the latest version).

ps: windows recognises the BBB as a memory though. 


please help.

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[beagleboard] Re: beaglebone black fails horribly windows 8

[Schrodingers Cat]

I already have most recent driver versions... Still fails though. ( the 
install wizard claims it was succesfull but nothing works)

Op woensdag 25 februari 2015 16:53:08 UTC+1 schreef Schrodingers Cat:
>
> I already used the BBB on this computer 1 year ago, and it worked (after 
> alot of diffuculties off course)
>
> Now all of a sudden it seems impossible to connect to my BBB via teraterm 
> or putty.
>
> I tried SSH  over USB, but it can't find the board. The ip 192.168.7.2 
> cannot be found (- getting started-).
>
> I don't see any serial ports.
>
> I reïnstalled the drivers, multiple times, but windows keeps saying there 
> are no drivers for the CDC serial device that appears in my device manager. 
> When I update I browse to the folder containing install files, I update and 
> then suddenly I get the report that some files coudn't be found by windows.
>
> I fail to understand what is going on here, its very strange. 
>
> There appear to be problems with the linux development network en serial 
> drivers (although I installed the latest version).
>
> ps: windows recognises the BBB as a memory though. 
>
>
> please help.
>

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Re: [beagleboard] UART Cable

[Gerald Coley]

If you send me your cable, I will be happy to look at it. Or you can
purchase another cable. Otherwise I don't see how anyone can debug your
issue without being there.

Gerald


On Wed, Feb 25, 2015 at 7:38 AM,  wrote:

> Hi,
>
> Iam facing one problem.i have beagle board xm.
> recently due to some problems my uart cable is break down and it is unable
> to do communication.after i did some soldering but it is unable to do
> communication.
> Please tell me how to correct this one and what type of cable i need to
> use for communication.
> I want to do communication from usb to serial communication.
>
> Please tell me the cables and hardware issues.
>
> Reg,
>
> K.Arungoal
>
> --
> For more options, visit http://beagleboard.org/discuss
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-- 
Gerald

ger...@beagleboard.org
http://beagleboard.org/
http://circuitco.com/support/

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[beagleboard] Re: U-Boot Bootloader Concepts

[DLF]

Hi

you might find your answer here.

http://www.raspberrypi.org/forums/viewtopic.php?f=66&t=101737

On Wednesday, 25 February 2015 16:40:37 UTC+1, kondaveet...@gmail.com wrote:
>
> Hi,
>
> Iam new to U-boot source code.
>
> Please tell me how to understand the flow of U-Boot bootloader from 
> scratch for Beagle board xm.
> and how to port U-boot bootloader for the beagle board xm and how to test 
> after porting.
> Please tell me some suggestions about my project.
>
>
>
>
>

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[beagleboard] Re: BBB power led blinking, revived after several power button presses

[mdtsandman]

Identical problem this morning:  BBB boots fine when powered by USB, but 
not when powered by a 2.0 mA rated 5.0 V DC power supply (nicked from some 
other device).  BBB power LED blinks continuously.  This power supply has 
worked with this BBB in the past.

Mike.

On Friday, January 23, 2015 at 8:44:59 PM UTC-8, 1127...@gmail.com wrote:
>
> I had a similar problem- my power LED would just continue blinking when 
> connected to a 5V power source. This meant there was something wrong. 
> First, I checked if my BBB was still alive. To find that, I connected my 
> board to a computer via USB. Surprisingly, this time power LED  turned on 
> normally. Then to make sure that everything was properly, I ran some 
> program as given in the BB website http://beagleboard.org/getting-started. 
>  I was happy to see, the programs on the website worked just fine on my 
> board. Thus, I was able to conclude that strangely, my BBB board didn't 
> like 5V external power source!
>
> On Friday, November 22, 2013 at 6:41:41 AM UTC-8, Bert Lindner wrote:
>>
>>
>> Just had a 5V powered Beaglebone Black seemingly die on me. First the 
>> power led kept blinking, then after removing the (BB Toys CAN) cape the 
>> power led would flash just once after applying power. Looking back in 
>> previous threads this seemed to mean I killed the board somehow; there was 
>> also a GPS module attached to one of the UARTs and a probably power hungry 
>> USB wlan stick that I'm trying to get to work, so a power hungry setup.
>>
>> I was ready to declare it dead, it remained just flashing once after 
>> repeatedly unplugging and reattaching the power supply.
>>
>> However I noticed the single power led flash would also happen if I 
>> pressed the power button (leaving the 5V plug in). Doing that repeatedly 
>> seems to have revived the board, will see if new problems occur. For now it 
>> behaves normally.
>>
>> Is this expected behaviour?
>>
>> Best,
>>
>> -Bert
>>
>>

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[beagleboard] GPIO over Internet: iGPIO.net

[Jonathan Kaufman]

Announcing a new service for the DIY/Beaglebone Community: A new web 
service, free for basic use, is just released and allows a GPIO bus (as for 
example of a Beaglebone) to be monitored and controlled via the Internet. 
The basic service is free. The iGPIO service is entirely reconfigurable, 
and the DIY community can find it useful for many applications, such as 
temperature monitoring and controlling lights etc. remotely. On the web 
site  are several examples of how to set up a Raspberry PI 
(B+) to interface with the iGPIO web-based service. 

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Re: [beagleboard] Re: BBB power led blinking, revived after several power button presses

[Gerald Coley]

I have seen this before. The USB path and 5VDC paths are different through
the PMIC. It is possible that the PMIC has sustained some damage or it
could be the 5VDC power supply is not powering up properly, where it has a
voltage spike, causing the PMIC to shutdown.

Past performance of power supplies is no guarantee of future performance.
It could be right on the edge.

Gerald

On Wed, Feb 25, 2015 at 10:27 AM,  wrote:

> Identical problem this morning:  BBB boots fine when powered by USB, but
> not when powered by a 2.0 mA rated 5.0 V DC power supply (nicked from some
> other device).  BBB power LED blinks continuously.  This power supply has
> worked with this BBB in the past.
>
> Mike.
>
>
> On Friday, January 23, 2015 at 8:44:59 PM UTC-8, 1127...@gmail.com wrote:
>>
>> I had a similar problem- my power LED would just continue blinking when
>> connected to a 5V power source. This meant there was something wrong.
>> First, I checked if my BBB was still alive. To find that, I connected my
>> board to a computer via USB. Surprisingly, this time power LED  turned on
>> normally. Then to make sure that everything was properly, I ran some
>> program as given in the BB website http://beagleboard.org/getting-started.
>> I was happy to see, the programs on the website worked just fine on my
>> board. Thus, I was able to conclude that strangely, my BBB board didn't
>> like 5V external power source!
>>
>> On Friday, November 22, 2013 at 6:41:41 AM UTC-8, Bert Lindner wrote:
>>>
>>>
>>> Just had a 5V powered Beaglebone Black seemingly die on me. First the
>>> power led kept blinking, then after removing the (BB Toys CAN) cape the
>>> power led would flash just once after applying power. Looking back in
>>> previous threads this seemed to mean I killed the board somehow; there was
>>> also a GPS module attached to one of the UARTs and a probably power hungry
>>> USB wlan stick that I'm trying to get to work, so a power hungry setup.
>>>
>>> I was ready to declare it dead, it remained just flashing once after
>>> repeatedly unplugging and reattaching the power supply.
>>>
>>> However I noticed the single power led flash would also happen if I
>>> pressed the power button (leaving the 5V plug in). Doing that repeatedly
>>> seems to have revived the board, will see if new problems occur. For now it
>>> behaves normally.
>>>
>>> Is this expected behaviour?
>>>
>>> Best,
>>>
>>> -Bert
>>>
>>>  --
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-- 
Gerald

ger...@beagleboard.org
http://beagleboard.org/
http://circuitco.com/support/

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Re: [beagleboard] problem with reading temperature from Dallas 1-wire devices

[Tammina.satyamurali bobi]

I have connected my device to P9_22 and checked for  "dmesg | grep w1"  but
it doesnot result in any thing. and I also could not find and devices
listed under   "/sys/bus/w1/devices/"  except  "w1_bus_master"

On Wed, Feb 25, 2015 at 9:27 PM, Tammina.satyamurali bobi <
satya.b...@gmail.com> wrote:

> Hi,
>
> I am trying to read temperature from Dallas 1-wire temperature device
> "DS18B20". I have loaded the device tree. enabled it in the
> "/sys/devices/bone_capemgr.*/slots" file. But when tried to read the
> temperature from the DS18B20 it always reads as ZERO degrees only. I have
> DEBIAN operating system installed on my Beagle Bone Black.
>
> I get the following on giving "cat w1_slave"
>
> 00 00 00 00 00 00 00 00 00 : crc=00 YES
> 00 00 00 00 00 00 00 00 00 t=0
>
> I am attaching the screen shot which shows the list of commands that i
> have given to read the temperature.
>
> Please help.
>
> Thanks in advance
>
> From Satya Murali.
>
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Re: [beagleboard] Reading large file on external HDD (ext4) causes 100% cpu usage

[Robert Nelson]

On Tue, Feb 24, 2015 at 1:20 PM, Jan Stanstrup  wrote:
> I am sorry but I send back the BBB while it was still possible. To be honest
> I lost patients with this issue after spending evening after evening trying
> to figure out what was wrong.
> I wanted ubuntu and gave up. But I was using
> BBB-eMMC-flasher-ubuntu-14.04.1-console-armhf-2015-01-06-2gb.img.xz

Sorry to bring this up, but for future users...

You actually where not testing usb "read" but instead you were testing
how slow "stdout" is...  (and it's really slow on arm)

beaglebone:

3.14.33-ti-r51:

htop: idle: cpu: 30%

time dd if=/dev/zero of=file.txt count=1024 bs=400

htop:
total-cpu: 70-80%
dd-cpu: 40-50%
iotop: 2x.xx M/s : WRITE

409600 bytes (4.1 GB) copied, 186.76 s, 21.9 MB/s

real 3m6.805s
user 0m0.020s
sys 1m11.190s

#clear the memory cache
sudo sh -c "sync && echo 3 > /proc/sys/vm/drop_caches"

time dd if=./file.txt of=/dev/null bs=4k

htop:
total-cpu: 60-80%
dd-cpu: 10-20%
iotop: 1x.XX M/s : READ

409600 bytes (4.1 GB) copied, 298.522 s, 13.7 MB/s

real 4m58.575s
user 0m1.850s
sys 0m49.980s

#clear the memory cache
sudo sh -c "sync && echo 3 > /proc/sys/vm/drop_caches"

time dd if=./file.txt bs=4k

htop:
total-cpu: 3x.xx%
dd-cpu: 0-0.7%
iotop: 125 K/s : READ (once every 5 seconds...)

^C315+0 records in
314+0 records out
1286144 bytes (1.3 MB) copied, 112.122 s, 11.5 kB/s

real 1m52.222s
user 0m0.020s
sys 0m0.130s

(stopped early, just way too slow..)

While on x86:

3.19.0

voodoo@hades:~$ time dd if=/dev/zero of=file.txt count=1024 bs=400
1024+0 records in
1024+0 records out
409600 bytes (4.1 GB) copied, 27.8636 s, 147 MB/s

real0m27.866s
user0m0.008s
sys 0m5.956s
voodoo@hades:~$ sudo sh -c "sync && echo 3 > /proc/sys/vm/drop_caches"
[sudo] password for voodoo:
voodoo@hades:~$ time dd if=./file.txt of=/dev/null bs=4k
100+0 records in
100+0 records out
409600 bytes (4.1 GB) copied, 68.3066 s, 60.0 MB/s

real1m8.413s
user0m0.340s
sys 0m5.708s
voodoo@hades:~$ sudo sh -c "sync && echo 3 > /proc/sys/vm/drop_caches"
voodoo@hades:~$ time dd if=./file.txt bs=4k
100+0 records in
100+0 records out
409600 bytes (4.1 GB) copied, 93.481 s, 43.8 MB/s

real1m33.655s
user0m0.368s
sys 0m24.136s

Regards,

-- 
Robert Nelson
http://www.rcn-ee.com/

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Re: [beagleboard] U-Boot Bootloader Concepts

[Robert Nelson]

On Wed, Feb 25, 2015 at 11:22 AM, Robert Nelson  wrote:
> On Wed, Feb 25, 2015 at 7:49 AM,   wrote:
>> Hi,
>>
>> Iam new to U-boot source code.
>>
>> Please tell me how to understand the flow of U-Boot bootloader from scratch
>> for Beagle board xm.
>> and how to port U-boot bootloader for the beagle board xm and how to test
>> after porting.
>> Please tell me some suggestions about my project.
>
> This still sorta applies, 3 years later..
>
> http://omappedia.org/wiki/Bootloader_Project

The thing to take away from ^above^ "X-loader" is now merged with
"u-boot", it's called "u-boot spl"...

Regards,

-- 
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http://www.rcn-ee.com/

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Re: [beagleboard] Re: U-Boot Bootloader Concepts

[Robert Nelson]

On Wed, Feb 25, 2015 at 10:56 AM, DLF  wrote:
> Hi
>
> you might find your answer here.
>
> http://www.raspberrypi.org/forums/viewtopic.php?f=66&t=101737

Wow, did you even read the original post?

Regards,

-- 
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http://www.rcn-ee.com/

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Re: [beagleboard] U-Boot Bootloader Concepts

[Robert Nelson]

On Wed, Feb 25, 2015 at 7:49 AM,   wrote:
> Hi,
>
> Iam new to U-boot source code.
>
> Please tell me how to understand the flow of U-Boot bootloader from scratch
> for Beagle board xm.
> and how to port U-boot bootloader for the beagle board xm and how to test
> after porting.
> Please tell me some suggestions about my project.

This still sorta applies, 3 years later..

http://omappedia.org/wiki/Bootloader_Project

source is available, take a look at here:

http://git.denx.de/?p=u-boot.git;a=summary

Regards,

-- 
Robert Nelson
http://www.rcn-ee.com/

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Re: [beagleboard] BeagleBone Black powers down when AC adapter is removed while the USB is connected.

[toni incog]

I like this behaviour and thought I could use it to cleanly shutdown the 
bbb. I therefore connected a 'powerbar' usb battery to the usb otg port. 
Now when I remove the 5V (strangely called ac) I expect a clean shutdown on 
power delivered by my cheap 'ups'. Only I find out that in /this/ case the 
bbb shutdown immediate instead of a clean shutdown!

So there seams to be a difference in connecting the otg usb to a pc or just 
to a powerbar.

Anyone who can explain this behaviour? In my quest to shutdown a bbb 
simple, cheap and clean.

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Re: [beagleboard] "Android for the BeagleBone Black" book now available

[Anuj Deshpande]

+1
I was lucky enough to get a preview copy of this for review, and I highly 
recommend it. It's got enough examples and theory to get you started 
building apps running on Android on the BBB. You'll get a hang of building 
Android apps that use GPIO, SPI, I2C. And I personally think that it opens 
up so many possibilities, it's amazing.

-Anuj

On Monday, February 23, 2015 at 1:04:33 AM UTC+5:30, William Hermans wrote:
>
> Hey, Andrew,
>
> Good Job ! Question though. Do you and your co-author ( plus perhaps packt 
> ) plan on releasing an electronic version ? Old eyes prefer a medium that 
> can be easily magnified ( zoom ) for better reading experience . . .
>
> On Sun, Feb 22, 2015 at 11:22 AM, Andrew Henderson  > wrote:
>
>> Hello all!  I am happy to announce that one of my colleagues, Aravind 
>> Prakash, and I have put together a book that gives some practical guidance 
>> on using Android on the BeagleBone Black platform. This book is "Android 
>> for the BeagleBone Black" from Packt Publishing (ISBN 978-1784392161), and 
>> it is now available on Amazon.  It covers a number of the details involved 
>> in installing Android on the BBB using the 3.8 Linux kernel and creating 
>> apps that interface with hardware connected to the BBB's P8/P9 connectors. 
>> There are step-by-step instructions on getting ADB over USB running, adding 
>> device tree overlays to your Android system, and setting up the system at 
>> boot via the Android init*.rc files.  There is also complete source code 
>> provided for sample apps that use JNI and AsyncTask background threads to 
>> talk with GPIO, I2C, and SPI hardware. We've selected some nice hardware 
>> components for the examples that will get you up-and-running without 
>> requiring you to have extensive hardware knowledge: 
>> http://i.imgur.com/bz4Fjeq.jpg
>>
>> Packt has made a sample of the book available for free here: 
>> http://www.slideshare.net/Products123/android-for-the-beaglebone-black-sample-chapter
>>
>> Back in 2013, I began experimenting with getting Android running on the 
>> BeagleBone Black with the 3.8 kernel so that I could quickly and easily 
>> interface capes and custom hardware with Android.  I made a few Android 
>> 4.2.2 JellyBean images available and I received *thousands* of mails from 
>> hobbyists, engineers, and students asking all sorts of questions and 
>> sharing info about what they've discovered while using Android on the BBB.  
>> The Android building process was a bit rough around the edges, so I tried 
>> to streamline the process as best as I could.  The result was the 
>> BBBAndroid project (bbbandroid.org), which allows you to build Android 
>> 4.4.4 KitKat with the 3.8 kernel in only a handful of simple steps.  
>>
>> I was surprised at all of the BBB projects that people have been using 
>> Android for!  A number of engineering firms and universities from all over 
>> the world have contacted me for advice about using the open hardware design 
>> of the BBB as an Android EVM or as a basis for new Android gizmos and 
>> research projects.  Having the 3.8 kernel available has allowed them to 
>> rapidly integrate and test hardware with their Android system prototypes, 
>> so I've heard about all sorts of tablets, car computers, portable media 
>> devices, smart toasters, etc. that people have been putting together with 
>> BBBs running Android.  Hopefully, this book will help give people those 
>> critical missing bits of information that they need to really dig in and 
>> start creating some nice Android-based projects.  Since the tutorials and 
>> documentation available for Android target the more "official" support for 
>> Android on the BBB with the 3.2 kernel, this book helps out those of you 
>> who want to use the BBB's cape manager to easily use commercially-available 
>> capes and quickly prototype new hardware and get it talking to Android apps.
>>
>> Enjoy, and be sure to let me know what Android projects you're creating 
>> for the BBB!
>>
>> Andrew
>>
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>

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Re: [beagleboard] Re: BBB power led blinking, revived after several power button presses

[Mike Traynor]

Thx.  Will try another PS if I can find one.  Otherwise will have to stick
with USB for now.  M.

On Wed, Feb 25, 2015 at 9:07 AM, Gerald Coley 
wrote:

> I have seen this before. The USB path and 5VDC paths are different through
> the PMIC. It is possible that the PMIC has sustained some damage or it
> could be the 5VDC power supply is not powering up properly, where it has a
> voltage spike, causing the PMIC to shutdown.
>
> Past performance of power supplies is no guarantee of future performance.
> It could be right on the edge.
>
> Gerald
>
> On Wed, Feb 25, 2015 at 10:27 AM,  wrote:
>
>> Identical problem this morning:  BBB boots fine when powered by USB, but
>> not when powered by a 2.0 mA rated 5.0 V DC power supply (nicked from some
>> other device).  BBB power LED blinks continuously.  This power supply has
>> worked with this BBB in the past.
>>
>> Mike.
>>
>>
>> On Friday, January 23, 2015 at 8:44:59 PM UTC-8, 1127...@gmail.com wrote:
>>>
>>> I had a similar problem- my power LED would just continue blinking when
>>> connected to a 5V power source. This meant there was something wrong.
>>> First, I checked if my BBB was still alive. To find that, I connected my
>>> board to a computer via USB. Surprisingly, this time power LED  turned on
>>> normally. Then to make sure that everything was properly, I ran some
>>> program as given in the BB website http://beagleboard.
>>> org/getting-started.  I was happy to see, the programs on the website
>>> worked just fine on my board. Thus, I was able to conclude that strangely,
>>> my BBB board didn't like 5V external power source!
>>>
>>> On Friday, November 22, 2013 at 6:41:41 AM UTC-8, Bert Lindner wrote:


 Just had a 5V powered Beaglebone Black seemingly die on me. First the
 power led kept blinking, then after removing the (BB Toys CAN) cape the
 power led would flash just once after applying power. Looking back in
 previous threads this seemed to mean I killed the board somehow; there was
 also a GPS module attached to one of the UARTs and a probably power hungry
 USB wlan stick that I'm trying to get to work, so a power hungry setup.

 I was ready to declare it dead, it remained just flashing once after
 repeatedly unplugging and reattaching the power supply.

 However I noticed the single power led flash would also happen if I
 pressed the power button (leaving the 5V plug in). Doing that repeatedly
 seems to have revived the board, will see if new problems occur. For now it
 behaves normally.

 Is this expected behaviour?

 Best,

 -Bert

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>
>
>
> --
> Gerald
>
> ger...@beagleboard.org
> http://beagleboard.org/
> http://circuitco.com/support/
>
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[beagleboard] BBB: SGX for X11 - is it possible?

[Victor]

I am compiling last kernel from git (3.18.5-bone1) with SGX modules. SGX 
acceleration seems to be working only for OpenGl demos from shell. When I 
install lxde - it looks like X11 acceleration is disabled.
I tried to add SUPPORT_XORG=1 to sgx install script - the compilation stops 
with errors.
Did anybody have success in implementing SGX in X11?
P.S. I followed http://elinux.org/BeagleBoardUbuntu : SGX - it didn't help.

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[beagleboard] No display with Ubuntu on BBB with 4DCAPE-70T

[jerryepplin]

I booted the prebuilt 14.04 image from a uSD card, but get no output on my 
4D Systems 7" cape.  The dmesg output is:

http://paste.ubuntu.com/10412184/

Everything works fine under Debian.  Any help appreciated.

Jerry

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Re: [beagleboard] No display with Ubuntu on BBB with 4DCAPE-70T

[Robert Nelson]

On Wed, Feb 25, 2015 at 12:18 PM,   wrote:
> I booted the prebuilt 14.04 image from a uSD card, but get no output on my
> 4D Systems 7" cape.  The dmesg output is:
>
> http://paste.ubuntu.com/10412184/
>
> Everything works fine under Debian.  Any help appreciated.

http://elinux.org/Beagleboard:Capes_3.8_to_3.14#4dcape-70t

Open: /boot/uEnv.txt

dtb=am335x-boneblack-4dcape-70t.dtb

reboot..

Regards,

-- 
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Re: [beagleboard] BBB: SGX for X11 - is it possible?

[Robert Nelson]

On Wed, Feb 25, 2015 at 1:01 PM, Victor  wrote:
> I am compiling last kernel from git (3.18.5-bone1) with SGX modules. SGX
> acceleration seems to be working only for OpenGl demos from shell. When I
> install lxde - it looks like X11 acceleration is disabled.
> I tried to add SUPPORT_XORG=1 to sgx install script - the compilation stops
> with errors.
> Did anybody have success in implementing SGX in X11?
> P.S. I followed http://elinux.org/BeagleBoardUbuntu : SGX - it didn't help.

Nope.. We get nothing for "X11"...

There are EGL bin's, so wayland is certainly possible.  Someone just
needs to figure it out and write up a doc.

Regards,

-- 
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http://www.rcn-ee.com/

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RE: [beagleboard] BeagleBone Black powers down when AC adapter is removed while the USB is connected.

[William Pretty Security]

There is a signal, on P9 I believe, called “power”. 

If you pull this pin low with a pushbutton switch, you will get the clean 
shutdown you are looking for.

 

 

 

"No one could make a greater mistake than he who did nothing because he could 
do only a little."

"All that is necessary for the triumph of evil is that good men do nothing" 
Edmond Burke (1729 - 1797)

http://www.packtpub.com/building-a-home-security-system-with-beaglebone/book

http://ca.linkedin.com/pub/bill-pretty/2b/b07/602

 

 

From: beagleboard@googlegroups.com [mailto:beagleboard@googlegroups.com] On 
Behalf Of toni incog
Sent: Wednesday, February 25, 2015 12:34 PM
To: beagleboard@googlegroups.com
Cc: dhi...@schneiderdcim.com
Subject: Re: [beagleboard] BeagleBone Black powers down when AC adapter is 
removed while the USB is connected.

 

I like this behaviour and thought I could use it to cleanly shutdown the bbb. I 
therefore connected a 'powerbar' usb battery to the usb otg port. Now when I 
remove the 5V (strangely called ac) I expect a clean shutdown on power 
delivered by my cheap 'ups'. Only I find out that in /this/ case the bbb 
shutdown immediate instead of a clean shutdown!

So there seams to be a difference in connecting the otg usb to a pc or just to 
a powerbar.

Anyone who can explain this behaviour? In my quest to shutdown a bbb simple, 
cheap and clean.

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  _  

No virus found in this message.
Checked by AVG - www.avg.com
Version: 2015.0.5646 / Virus Database: 4299/9178 - Release Date: 02/25/15

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Re: [beagleboard] Re: How to enable all i2c

[Tux Leonard]

I had the same problem (missing cape-manager ) in the newer kernel versions
a few weeks ago.
Needed to switch back to kernel 3.8.13 to get the cape-manager working. I
haven't had time to investigate more.

If you want to give it a try:

sudo apt-get update
sudo apt-get install linux-image-3.8.13-bone67
sudo reboot

2015-02-25 12:49 GMT+01:00 Lennart ohnenam :

> @Tux: (Man muss das Kind ja beim Namen nennen ;) ) I don't have the entire
> path. I'm missing the bone_capemgr.9
>
> @Richard: I am using ubuntu on the Beagleboard xM. Any chance you know
> where to find it on this configuration?
>
> 2015-02-24 16:05 GMT+01:00 Richard-tx :
>
>> I think that the issue stems from older versions of debian based linux
>> and the newer version that use a device tree.
>>
>>
>> If the echo statement fails then:
>>
>> To enable the I2c-1 on the BeagleBone Black Rev A, B and C:
>>
>>1. Rev A/B: Open the file /media/BEAGLEBONE/uEnv.txt in an editor
>>(vim/nano)
>>2. Rec C: Open the file /boot/uboot/uEnv.txt in an editor (vim/nano)
>>3. Add the key "capemgr.enable_partno="
>>4. Add the ports you want to enable, comma separated
>>(BB-I2C0, BB-I2C1, etc)
>>5. Reboot
>>
>> An example line looks like this:
>> root@beaglebone:/dev# cat /media/BEAGLEBONE/uEnv.txt
>> optargs=quiet drm.debug=7 capemgr.enable_partno=BB-I2C1
>>
>>
>>
>>
>>
>>
>> On Thursday, November 13, 2014 at 9:13:51 PM UTC-6, ngocta...@gmail.com
>> wrote:
>>>
>>> I use I2C-Tools to detect the i2c like:
>>>
>>> root@android:/ # i2cdetect -l
>>>
>>> i2c-1   i2c OMAP I2C adapterI2C
>>> adapter
>>> i2c-3   i2c OMAP I2C adapterI2C
>>> adapter
>>>
>>> but in beablebone black(ver C), it has 3 i2c, so how to enable all.
>>> please give me some advices
>>>
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Re: [beagleboard] Re: How to enable all i2c

[Lennart ohnenam]

Sounds interesting. I was able to change the i2c on the hardware. Just took
a stiff cable to connect to the LCD Header of the BBxM, which has the i2c3
interface. If I downgrade the kernel I'm not sure whether all the other
stuff on the Board still works. Is that made for the Beagleboard or would I
have to worry?

Thanks for the advice!

2015-02-25 21:19 GMT+01:00 Tux Leonard :

> I had the same problem (missing cape-manager ) in the newer kernel
> versions a few weeks ago.
> Needed to switch back to kernel 3.8.13 to get the cape-manager working. I
> haven't had time to investigate more.
>
> If you want to give it a try:
>
> sudo apt-get update
> sudo apt-get install linux-image-3.8.13-bone67
> sudo reboot
>
> 2015-02-25 12:49 GMT+01:00 Lennart ohnenam :
>
>> @Tux: (Man muss das Kind ja beim Namen nennen ;) ) I don't have the
>> entire path. I'm missing the bone_capemgr.9
>>
>> @Richard: I am using ubuntu on the Beagleboard xM. Any chance you know
>> where to find it on this configuration?
>>
>> 2015-02-24 16:05 GMT+01:00 Richard-tx :
>>
>>> I think that the issue stems from older versions of debian based linux
>>> and the newer version that use a device tree.
>>>
>>>
>>> If the echo statement fails then:
>>>
>>> To enable the I2c-1 on the BeagleBone Black Rev A, B and C:
>>>
>>>1. Rev A/B: Open the file /media/BEAGLEBONE/uEnv.txt in an editor
>>>(vim/nano)
>>>2. Rec C: Open the file /boot/uboot/uEnv.txt in an editor (vim/nano)
>>>3. Add the key "capemgr.enable_partno="
>>>4. Add the ports you want to enable, comma separated
>>>(BB-I2C0, BB-I2C1, etc)
>>>5. Reboot
>>>
>>> An example line looks like this:
>>> root@beaglebone:/dev# cat /media/BEAGLEBONE/uEnv.txt
>>> optargs=quiet drm.debug=7 capemgr.enable_partno=BB-I2C1
>>>
>>>
>>>
>>>
>>>
>>>
>>> On Thursday, November 13, 2014 at 9:13:51 PM UTC-6, ngocta...@gmail.com
>>> wrote:

 I use I2C-Tools to detect the i2c like:

 root@android:/ # i2cdetect -l

 i2c-1   i2c OMAP I2C adapterI2C
 adapter
 i2c-3   i2c OMAP I2C adapterI2C
 adapter

 but in beablebone black(ver C), it has 3 i2c, so how to enable all.
 please give me some advices

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Re: [beagleboard] Re: Beaglebone & Mac OSX = NIGHTMARE

[Andrew P. Lentvorski]

Thanks for this.  I'll pull this into a separate thread as we're drifting 
way off-topic now ...

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[beagleboard] Re: Initiating PRU Single-Stepping Using Prudebug?

[Kumar Abhishek]

Hi,

Referring to the pru_remoteproc 

 
driver (which is used by the BeagleLogic kernel driver) in a early version 
tree for BeagleLogic which highlights the process of resuming the PRU - 
Incrementing PC by 1 (skipping over HALT), then setting CONTROL_ENABLE bit 
to 1 and *soft-resetting the PRU*.

Hope it helps

Abhishek

On Tuesday, February 24, 2015 at 11:54:13 PM UTC+5:30, Bit Pusher wrote:
>
> I am running an example similar to PRU_PRUtoPRU_Interrupt from TI's pru 
> support package, and have download and installed prudebug (the suggested 
> alternative from LinuxCNC configs/pru-examples/README 
> 
>  appears 
> to require an installation of the complete LinuxCNC project in order to get 
> a "HAL" environment and my eMMC does not have enough remaining space for 
> this). Both PRU0 and PRU1 are started from a C program by the arm. I can 
> insert a HALT statement into PRU1, for example, and then examine registers 
> using prudebug, which is much better than previously. However, 
>  single-stepping past the HALT statement does not work (at least I can not 
> get it to work). If I insert a QBA 0 (which in binary from found using 
> DIS is 0x7900), and re-make, then the program can be put into an 
> infinite loop, and can be stopped using HALT. It was then possible to use 
> the command WRI 0x9 0x7901 (0x9 is the instruction address and this 
> replaces QBA 0 by QBA 1), and it was then possible to single-step through 
> code from that location on. Although this does seem to work, it is very 
> unwieldy and I am guessing there is a much cleaner method to be able to 
> halt the PRU and initiate single-stepping; do any of the experienced coders 
> in PRU Land have suggestions for a more efficient methodology? Thank you.
> Bit_Pusher
>

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Re: [beagleboard] BeagleBone Black powers down when AC adapter is removed while the USB is connected.

[toni incog]

Yes indeed, and that is a perfect way to shut down our baby. It's another 
way of pressing the power button. Thing is you need another 10 sec. of 
shutdown power (to cleanly shutdown).

So I'm looking for the use case where somebody stupid (talking 'bout me) 
yanks the 5V and I still get a clean shutdown. We need external 'ups' power 
for that last 10 sec. of shutdown. Now I keep 5V always on. Till power 
company screws up. 64 million dollar question: how many times can power 
company screw up before bbb screws up?

Question remains why I get a unclean shutdow with me (the stupid one) 
feeding 5v to otg usb with powerbar and getting clean shutdown when 
connected to regular pc. 

Call me stupid but the correct answer awaits tickets for the next frank 
zappa concert!

thx,
Michiel 

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Re: [beagleboard] BBB: SGX for X11 - is it possible?

['David Batzle' via BeagleBoard]

If you mean having 3D rendered into a window under X11 then yes, this is 
possible. Ogre3D does this although they say that their OpenGL ES support is 
broken but they are working on it. I suggest checking out Ogre3D code to see 
how it is done. It has been a long time since I worked on it but from what I 
remember, there is a routine in EGL that will create a render surface from a 
window.

David


On Wed, 2/25/15, Robert Nelson  wrote:

 Subject: Re: [beagleboard] BBB: SGX for X11 - is it possible?
 To: "Beagle Board" 
 Date: Wednesday, February 25, 2015, 2:04 PM
 
 On Wed, Feb 25, 2015 at 1:01 PM,
 Victor 
 wrote:
 > I am compiling last kernel from git (3.18.5-bone1) with
 SGX modules. SGX
 > acceleration seems to be working only for OpenGl demos
 from shell. When I
 > install lxde - it looks like X11 acceleration is
 disabled.
 > I tried to add SUPPORT_XORG=1 to sgx install script -
 the compilation stops
 > with errors.
 > Did anybody have success in implementing SGX in X11?
 > P.S. I followed http://elinux.org/BeagleBoardUbuntu : SGX - it didn't
 help.
 
 Nope.. We get nothing for "X11"...
 
 There are EGL bin's, so wayland is certainly possible. 
 Someone just
 needs to figure it out and write up a doc.
 
 Regards,
 
 -- 
 Robert Nelson
 http://www.rcn-ee.com/
 
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Re: [beagleboard] BeagleBone Black powers down when AC adapter is removed while the USB is connected.

[Harvey White]

On Wed, 25 Feb 2015 15:51:21 -0800 (PST), you wrote:

>Yes indeed, and that is a perfect way to shut down our baby. It's another 
>way of pressing the power button. Thing is you need another 10 sec. of 
>shutdown power (to cleanly shutdown).

That's possible with a backup supply, NIMH/NICD with a resistor to
charge and a diode to prevent overcharge, if you have a cutoff when
the batteries reach 1.1 volts, you're fine.  I'd suggest a 1 farad
capacitor, but the BBB wants several hundred mills when running, and I
suspect that's a bit much.

>
>So I'm looking for the use case where somebody stupid (talking 'bout me) 
>yanks the 5V and I still get a clean shutdown. We need external 'ups' power 
>for that last 10 sec. of shutdown. Now I keep 5V always on. Till power 
>company screws up. 64 million dollar question: how many times can power 
>company screw up before bbb screws up?

Ok, comparator and you shut down (gracefully) when the DC power goes
away.  Problem is to determine that (if you're also battery
powered this is good)

>
>Question remains why I get a unclean shutdow with me (the stupid one) 
>feeding 5v to otg usb with powerbar and getting clean shutdown when 
>connected to regular pc. 

May have to do with how the power is actually disconnected, clean off
vs make/break/make/break by disconnecting

>
>Call me stupid but the correct answer awaits tickets for the next frank 
>zappa concert!

*or is that a *sears* poncho?*

Harvey

>
>thx,
>Michiel 

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Re: [beagleboard] BeagleBone Black powers down when AC adapter is removed while the USB is connected.

[toni incog]

On Thursday, February 26, 2015 at 1:33:01 AM UTC+1, Harvey White wrote:
>
> On Wed, 25 Feb 2015 15:51:21 -0800 (PST), you wrote: 
>
> >Yes indeed, and that is a perfect way to shut down our baby. It's another 
> >way of pressing the power button. Thing is you need another 10 sec. of 
> >shutdown power (to cleanly shutdown). 
>
> That's possible with a backup supply, NIMH/NICD with a resistor to 
> charge and a diode to prevent overcharge, if you have a cutoff when 
> the batteries reach 1.1 volts, you're fine.  I'd suggest a 1 farad 
> capacitor, but the BBB wants several hundred mills when running, and I 
> suspect that's a bit much. 
>
> Yeah 1 Farad is not enough to shutdown clean.
 

> > 
> >So I'm looking for the use case where somebody stupid (talking 'bout me) 
> >yanks the 5V and I still get a clean shutdown. We need external 'ups' 
> power 
> >for that last 10 sec. of shutdown. Now I keep 5V always on. Till power 
> >company screws up. 64 million dollar question: how many times can power 
> >company screw up before bbb screws up? 
>
> Ok, comparator and you shut down (gracefully) when the DC power goes 
> away.  Problem is to determine that (if you're also battery 
> powered this is good) 
>

reading ten times, no comprending. Do you no who you are? You aint what 
your not. And that al there is. 

>
> > 
> >Question remains why I get a unclean shutdow with me (the stupid one) 
> >feeding 5v to otg usb with powerbar and getting clean shutdown when 
> >connected to regular pc. 
>
> May have to do with how the power is actually disconnected, clean off 
> vs make/break/make/break by disconnecting 
>

Ok. Could be. But it think it's hard & propably software. Don't believe in 
statistics on average.
 

>
> > 
> >Call me stupid but the correct answer awaits tickets for the next frank 
> >zappa concert! 
>
> *or is that a *sears* poncho?* 
>
> Harvey 
>
>
I guess: in serious leather!

Thanks and sorry for zappian confusion, questions still stands:
 

> > 
> >thx, 
> >Michiel 
>
>

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RE: [beagleboard] BeagleBone Black powers down when AC adapter is removed while the USB is connected.

[William Pretty Security]

The BBB has a battery backup connector on it you might want to look into ?

 

 

"No one could make a greater mistake than he who did nothing because he could 
do only a little."

"All that is necessary for the triumph of evil is that good men do nothing" 
Edmond Burke (1729 - 1797)

http://www.packtpub.com/building-a-home-security-system-with-beaglebone/book

http://ca.linkedin.com/pub/bill-pretty/2b/b07/602

 

 

From: beagleboard@googlegroups.com [mailto:beagleboard@googlegroups.com] On 
Behalf Of toni incog
Sent: Wednesday, February 25, 2015 6:51 PM
To: beagleboard@googlegroups.com
Subject: Re: [beagleboard] BeagleBone Black powers down when AC adapter is 
removed while the USB is connected.

 

Yes indeed, and that is a perfect way to shut down our baby. It's another way 
of pressing the power button. Thing is you need another 10 sec. of shutdown 
power (to cleanly shutdown).

So I'm looking for the use case where somebody stupid (talking 'bout me) yanks 
the 5V and I still get a clean shutdown. We need external 'ups' power for that 
last 10 sec. of shutdown. Now I keep 5V always on. Till power company screws 
up. 64 million dollar question: how many times can power company screw up 
before bbb screws up?

Question remains why I get a unclean shutdow with me (the stupid one) feeding 
5v to otg usb with powerbar and getting clean shutdown when connected to 
regular pc. 

Call me stupid but the correct answer awaits tickets for the next frank zappa 
concert!

thx,
Michiel 

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  _  

No virus found in this message.
Checked by AVG - www.avg.com
Version: 2015.0.5646 / Virus Database: 4299/9178 - Release Date: 02/25/15

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Re: [beagleboard] Re: beaglebone black fails horribly windows 8

[William Hermans]

Not enough information . . .

Did you check to see if your usb gadget on the windows side is grabbing an
appropriate IP ? If not did you set it manually ?

Why not start again fresh, and give us exact steps you've taken on the
host, and client side.

On Wed, Feb 25, 2015 at 9:07 AM, Schrodingers Cat <
lukas.vaniseg...@gmail.com> wrote:

> I already have most recent driver versions... Still fails though. ( the
> install wizard claims it was succesfull but nothing works)
>
> Op woensdag 25 februari 2015 16:53:08 UTC+1 schreef Schrodingers Cat:
>
>> I already used the BBB on this computer 1 year ago, and it worked (after
>> alot of diffuculties off course)
>>
>> Now all of a sudden it seems impossible to connect to my BBB via teraterm
>> or putty.
>>
>> I tried SSH  over USB, but it can't find the board. The ip 192.168.7.2
>> cannot be found (- getting started-).
>>
>> I don't see any serial ports.
>>
>> I reïnstalled the drivers, multiple times, but windows keeps saying there
>> are no drivers for the CDC serial device that appears in my device manager.
>> When I update I browse to the folder containing install files, I update and
>> then suddenly I get the report that some files coudn't be found by windows.
>>
>> I fail to understand what is going on here, its very strange.
>>
>> There appear to be problems with the linux development network en serial
>> drivers (although I installed the latest version).
>>
>> ps: windows recognises the BBB as a memory though.
>>
>>
>> please help.
>>
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Re: [beagleboard] Re: Beaglebone & Mac OSX = NIGHTMARE

[Hieu Trung Le]

Chad,

Did you mean that you also do the cross build on Mac?

Thanks,
-Hieu
--
Think Environment!

From: Chad Baker mailto:cmbak...@gmail.com>>
Reply-To: "beagleboard@googlegroups.com" 
mailto:beagleboard@googlegroups.com>>
Date: Wednesday, February 25, 2015 at 9:13 PM
To: "beagleboard@googlegroups.com" 
mailto:beagleboard@googlegroups.com>>
Subject: Re: [beagleboard] Re: Beaglebone & Mac OSX = NIGHTMARE

Like Jason, I use a Mac every day to work with my BBB. I had no problems 
connecting with OSX 10.9 but 10.10 is another matter. When I installed the 
latest HoRNDIS package, my Mac started rebooting when I would attach my BBB to 
the usb port. Removing the package resolved the reboot. The only reliable ways 
that I have found are using ethernet and "screen /dev/tty.usbmodem* 115200". 
screen has many quirks, but is usable.
Chad


On 2/24/15 9:38 PM, Jason Kridner wrote:
I use a Mac with BeagleBone every day, but too many things break on 10.10, with 
no relation to Beagle, for me to update. Joshua, the author of HoRNDIS, seems 
to have made a release to work with 10.10, so there doesn't seem to be enough 
info to provide a useful response.



On Feb 24, 2015, at 9:00 PM, Andrew P. Lentvorski 
mailto:bsd...@gmail.com>> wrote:

To be fair, ranting at least got him a response.

Lots of people seem to be asking questions and I see like single digit views 
and no responses.

It feels like a ghost town in here.
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[beagleboard] Measuring frequency

[Rick Mann]

I need to accurately measure frequency from a pressure transducer, and make it 
available on a LAN. A BBB ought to be able to do this, if the PRU can be made 
to accurately measure the frequency.

The frequency range is 30 kHz to 42 kHz. I need better than 0.01% accuracy. 
Overall latency in the reading is not too much of an issue, so long as it's not 
more than a few seconds.

Does the PRU let me connect a GPIO to a counter internally? I can measure some 
cycles and compare that to a crystal-driven counter.

Has anyone done this?

TIA,

-- 
Rick Mann
rm...@latencyzero.com


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Re: [beagleboard] BBB: SGX for X11 - is it possible?

[Victor]

Thank you, but this is not a case. I would like the whole X system to be HW 
accelerated. Chromium, players, everything. Like rowboat android.

On Thursday, February 26, 2015 at 2:15:31 AM UTC+2, davidcb wrote:
>
> If you mean having 3D rendered into a window under X11 then yes, this is 
> possible. Ogre3D does this although they say that their OpenGL ES support 
> is broken but they are working on it. I suggest checking out Ogre3D code to 
> see how it is done. It has been a long time since I worked on it but from 
> what I remember, there is a routine in EGL that will create a render 
> surface from a window. 
>
> David 
>
>  
> On Wed, 2/25/15, Robert Nelson > wrote: 
>
>  Subject: Re: [beagleboard] BBB: SGX for X11 - is it possible? 
>  To: "Beagle Board" > 
>  Date: Wednesday, February 25, 2015, 2:04 PM 
>   
>  On Wed, Feb 25, 2015 at 1:01 PM, 
>  Victor > 
>  wrote: 
>  > I am compiling last kernel from git (3.18.5-bone1) with 
>  SGX modules. SGX 
>  > acceleration seems to be working only for OpenGl demos 
>  from shell. When I 
>  > install lxde - it looks like X11 acceleration is 
>  disabled. 
>  > I tried to add SUPPORT_XORG=1 to sgx install script - 
>  the compilation stops 
>  > with errors. 
>  > Did anybody have success in implementing SGX in X11? 
>  > P.S. I followed http://elinux.org/BeagleBoardUbuntu : SGX - it didn't 
>  help. 
>   
>  Nope.. We get nothing for "X11"... 
>   
>  There are EGL bin's, so wayland is certainly possible.  
>  Someone just 
>  needs to figure it out and write up a doc. 
>   
>  Regards, 
>   
>  -- 
>  Robert Nelson 
>  http://www.rcn-ee.com/ 
>   
>  -- 
>  For more options, visit http://beagleboard.org/discuss 
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>   
>

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[beagleboard] Uboot access to emmc partitions

[Satya]

Hi all,
  I do have a requirement to access e-mmc partitions from the uboot 
cmdline, like we do after booting Linux. All support sources pointing boot 
Linux and then touch the e-mmc, it would be a great help if somebody help 
me,facing the toughest time.

Thanks,
Satya

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Re: [beagleboard] BBB: SGX for X11 - is it possible?

[John Syne]

> On Feb 25, 2015, at 9:30 PM, Victor  wrote:
> 
> Thank you, but this is not a case. I would like the whole X system to be HW 
> accelerated. Chromium, players, everything. Like rowboat android.
If you read TI’s release notes for SGX, it specifically says xorg not supported.

Regards,
John
> 
> On Thursday, February 26, 2015 at 2:15:31 AM UTC+2, davidcb wrote:
> If you mean having 3D rendered into a window under X11 then yes, this is 
> possible. Ogre3D does this although they say that their OpenGL ES support is 
> broken but they are working on it. I suggest checking out Ogre3D code to see 
> how it is done. It has been a long time since I worked on it but from what I 
> remember, there is a routine in EGL that will create a render surface from a 
> window. 
> 
> David 
> 
>  
> On Wed, 2/25/15, Robert Nelson > wrote: 
> 
>  Subject: Re: [beagleboard] BBB: SGX for X11 - is it possible? 
>  To: "Beagle Board" > 
>  Date: Wednesday, February 25, 2015, 2:04 PM 
>   
>  On Wed, Feb 25, 2015 at 1:01 PM, 
>  Victor > 
>  wrote: 
>  > I am compiling last kernel from git (3.18.5-bone1) with 
>  SGX modules. SGX 
>  > acceleration seems to be working only for OpenGl demos 
>  from shell. When I 
>  > install lxde - it looks like X11 acceleration is 
>  disabled. 
>  > I tried to add SUPPORT_XORG=1 to sgx install script - 
>  the compilation stops 
>  > with errors. 
>  > Did anybody have success in implementing SGX in X11? 
>  > P.S. I followed http://elinux.org/BeagleBoardUbuntu 
>  : SGX - it didn't 
>  help. 
>   
>  Nope.. We get nothing for "X11"... 
>   
>  There are EGL bin's, so wayland is certainly possible.  
>  Someone just 
>  needs to figure it out and write up a doc. 
>   
>  Regards, 
>   
>  -- 
>  Robert Nelson 
>  http://www.rcn-ee.com/  
>   
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>  For more options, visit http://beagleboard.org/discuss 
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