[beagleboard] Getting started information for ubuntu 13.04 on BBB (similar to Angstrom)

[vinayak aghor]

Hello All ,
I have downloaded *ubuntu-raring-13.04-armhf-3.8.13-bone20* from 
http://www.armhf.com/index.php/boards/beaglebone-black/  & installed on SD 
card. It started fine. 

Is there any documentation on how to SSH to PC through USB0 (same as 
angstrom), changing resolution of screen through command line?

Because I have no LAN internet connection , so I could not install 
ubuntu-desktop. 

Is there option to use following commands (same as Angstrom).
  - /sbin/route add default gw 192.168.7.1 
  - echo "nameserver 8.8.8.8" >> /etc/resolv.conf

By this way I can get connected to USB dongle through SSH into PC.

Please help

Regards
Vinayak

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[beagleboard] Best way to build Angstrom kernel

[Seth]

I would like advice on the best way to rebuild the Angstrom kernel for the 
BBB. I need to do this because I do not want HDMI support, but DO want 
Audio cape support. I have read (last post 
here) 
that disabling HDMI patches and rebuilding will do that. 

I have rebuilt kernels for embedded Linux before (for the BBW as well as 
the FriendlyArm years ago), and I remember it being a complete pain in the 
neck. Many days of troubleshooting errors, setting up build environments 
and such. I should say that I am still relatively new when it comes to 
Linux and I was probably doing things the hard way. 

I have been occasionally checking in this group and reading how others 
solved their problems which is encouraging. However, I'd like the most 
up-to-date instructions to use, if possible. I have been using BBB flasher 
images from this 
linksince they seem to 
upload new images pretty often. I can't seem to find a 
change log for those images, however (I see the log on the official 
Software Update page but that doesn't cover all the mini-updated images). 

I have also read that the patch developers were working on a way for both 
HDMI and Audio capes to work at the same time without need to rebuild the 
kernel, but I have not seen any news about that lately. I was hoping to 
wait until they had those compatibility issues worked out in a new release 
so I didn't have to bother with the rebuild, but I've been waiting several 
months and am ready to try fixing it myself. 

I would like the kernel that I build to be as updated as possible. For 
example, the latest flasher image from the link I posted above was from 
yesterday, the 8th. I don't know if that's even necessary since I cannot 
seem to find the change logs for those images. 

I have found (again from the first link I gave) this page 
and this 
page which 
seem to have a pretty good list of instructions. Would you recommend 
I follow those or is there a better set of instructions elsewhere that I 
could use? Normally I would just jump right in and try it, but I have been 
burned before by following out-of-date instructions, wasting lots of time 
only to get nowhere. This is especially bad due to the fast-changing nature 
of Linux. 

I also don't want to spend time doing this process only to find that a 
newer image has been released, requiring me to do the whole thing again. I 
can't seem to find any "predicted new BBB image release schedule" anywhere. 
Does anyone know if any major updates are planned to be released soon? 

I thank you in advance for your time and advice. 

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[beagleboard] Re: U-boot zImage uInitrd confusion?

[Jacob Ole Juul Kolding]

Hmm uInitrd doesn't seem to do anything even though its specified in
uEnv.txt.

Anyway I followed this guide:
http://wiki.beyondlogic.org/index.php/BeagleBoneBlack_Building_Kernel

and copied kernel/arch/arm/boot/zImage to /boot/uboot on the flash card,
and it booted (uname -a confirms that its the new kernel)

/Jacob


2013/11/10 Jacob Ole Juul Kolding 

> I have successfully compiled a zImage of linux 3.12.0 for my
> beaglebone black but my image is called  uImage-dtb.am335x-boneblack
> and the kernel file in /boot/uboot/uEnv.txt is called zImage.
>
> How do I boot the uImage and what ramdisk file must I use?
>
> Thanks
> /Jacob
>



-- 
If you're not a socialist when you're young, it's because you have no heart.
If you stop being a socialist when you get older, it's because you lack
intellect and imagination.

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Re: [beagleboard] RE: Ubuntu 13.04 Beaglebone Black ethernet connection SSH

[Nuno Sucena Almeida]

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

On 11/09/2013 05:21 PM, Priyank Patel wrote:
> flashing it with Ubuntu, the only option I have is to hook up Beaglebone to 
> my home router and lookup its IP via modem settings and SSH. Since it is 

You probably need to install avahi-daemon into your beaglebone ubuntu
system, then you can use avahi-browse -a from your other machine to find
its name. The default ubuntu hostname is 'arm'.

regards,
Nuno

- -- 
http://aeminium.org/nuno/
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[beagleboard] Re: HDMI video output too wide on screen

[raa . internet]

I was having the very annoying problem of having the edges with the menus 
of the GUI outside of the screen for my Panasonic and Toshiba TV's.
The solution I found for the Panasonic TV was to select: MENU > PICTURE > 
ADVANCED MENU > HD SIZE: 2
The default HD Size is 1 for the Panasonic TC-37LZ85X.  Selecting HD Size 2 
solves the problem.

I should also mention that before, I was getting no image, and it was due 
to the fact that the mini HDMI connector did not go deep enough into the 
receptacle when the Beaglebone Black is inside the Adafruit BBB Case ID 
1555.
RAA

On Monday, May 13, 2013 12:39:44 PM UTC, Aubrey Sheldon wrote:
>
> Anyone know which file I need to edit to change display resolution?  My 
> HDMI TV (and an ACER monitor with HDMI inputs as well) are displaying the 
> login text off screen to the left.  The actual positioning is not 
> adjustable in the TV's menu.  I'd like to be able to change the display 
> output from the Beagle Bone Black so that on bootup from the SD card 
> (Debian Wheezy installed on the SD card is running fine) so this might be a 
> question for the Debian gurus among you.  I don't yet have one of the GUI's 
> (KDE or GNOME) running properly in Debian on the Bone, but I'm working on 
> it.
>
> Any help would be much appreciated.
>
> Jim Sheldon
>

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[beagleboard] U-boot zImage uInitrd confusion?

[Jacob Ole Juul Kolding]

I have successfully compiled a zImage of linux 3.12.0 for my
beaglebone black but my image is called  uImage-dtb.am335x-boneblack
and the kernel file in /boot/uboot/uEnv.txt is called zImage.

How do I boot the uImage and what ramdisk file must I use?

Thanks
/Jacob

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Re: [beagleboard] Cannot SSH to ubuntu in BBB

[Robert Nelson]

On Nov 9, 2013 4:28 PM, "Priyank Patel"  wrote:
>
> Hello Robert,
> I have similar problem and posted it to http://bit.ly/17fFOLX. I am
running 13.04 armhf with your kernel. How to I run this script that you
mentioned above. Thanks.

Search the forums you're missing a program to use name lookup over ip for
SSH.

> -Priyank
>
> On Wednesday, November 6, 2013 9:27:49 AM UTC-5, RobertCNelson wrote:
>>
>> On Wed, Nov 6, 2013 at 2:48 AM,   wrote:
>> > Hi everyone !
>> >
>> > I install ubuntu 12.04, lxde in sdcard, and it work well.
>> > I run ubuntu 12.04 in my PC, and plug in BBB via sdcard that contained
>> > ubuntu 12.04, then I cannot ssh to this BBB. lsusb also doesnt show
the BBB.
>> > However, when I remove the sdcard and run default Angstrom, lsusb
shows the
>> > BBB and I can ssh to BBB too. Anyone know this problem ? Please help
me :)
>>
>> So did you write an init script for you 12.04 to achieve this?
>>
>> For the release's on: http://elinux.org/BeagleBoardUbuntu
>>
>> This is the script that does that...
>> https://github.com/RobertCNelson/boot-scripts/blob/master/am335x_evm.sh
>>
>> Regards,
>>
>> --
>> Robert Nelson
>> http://www.rcn-ee.com/
>
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Re: [beagleboard] Re: Knee Brace Project planted with 6 Accelerometers and BBB

[Zain Dar]

I know, I felt really annoyed that the Prof who provided the brace was not
so keen on how it was tested... yet provide at least a history report on it.
If the inputs of analog sensors require an extra chip, then I will need to
look around for the chips mentioned in the previous post. Thanks alot for
helping me out! I'll see what happens next.


On Sat, Nov 9, 2013 at 4:48 PM, Mike Bremford  wrote:

> Nice of the other team to leave you no documentation...
>
> I guess if I was stuck with 12 analog inputs and only 7 pins to read them
> on I would use something like a 74HC4051 to multiplex the inputs - use 3
> gpio pins to control which of the 8 inputs is connected to the ADC on the
> BBB. Or use an MCP3426 (or similar) - a 4-channel ADC that you can talk to
> over I2C. Either way I think if you want to get 12 into 7, you're going to
> need another chip.
>
>
> On 9 November 2013 15:37, Zain Dar  wrote:
>
>> Your right, I can hook up the analog sensors to the analog pins and read
>> them the normal way. The reason for analog is because when i was assigned
>> this project, it was already made by other teams who worked on it 2 years
>> ago. It's an R/D project from the college, but they haven't provided any
>> info on it from those days, except mentioning that the brace works and the
>> sensors are operational. I only had to order the BBB and make a program for
>> it to read those sensors in real time. I chose Python for the sake of
>> simplicity and i just learned how to make use of the board from it. Its no
>> problem for those asking out of curiosity, questions are welcome.
>> Now since there are 7 ADC pins on it, I have 12 wires for the Analog
>> sensors, each of them with X, Y and Z axis. I'm not sure how I can fit all
>> of them on the ADC. Is there a way I can use the GPIO pins for any extra
>> wires left over? if so, then how can i make use of them? in a loop, or a if
>> statement?
>>
>> On Saturday, November 9, 2013 5:09:23 AM UTC-5, Mike Bremford wrote:
>>
>>> If they're analog, surely you'd just hook them up to the analog pins and
>>> read them the normal way? Probably  with a couple of resistors to reduce
>>> the voltage range to 1.8V? http://learn.adafruit.
>>> com/measuring-light-with-a-beaglebone-black?view=all
>>>
>>> Out of curiousity is there a reason you're using analog accelerometers?
>>> I'm far from a pro but I2C based ones like the ADXL345 are incredibly easy
>>> to use - two slave addresses possible, you have 2 I2C busses so that's 4
>>> you can access - mix in a couple of other models (eg MMA7660) or hook them
>>> up via an I2C multiplexer and you can use 6. Digital is so much easier to
>>> work with, not least when it comes to running the wires - 4 (3V3, SCL, SDA,
>>> GND) is better than 4x3=12 for your analogs plus your 4 I2C wires for the
>>> others.
>>>
>>>
>>> On 8 November 2013 20:03, Zain Dar  wrote:
>>>
 Well I was thinking of choosing python because of its ease of use for
 pin manipulation and when I first got the beaglebone, I was setting up the
 python library. I wasn't sure how to do it in other languages because I
 don't have that much experience. As far as C++ is concerned, I do know a
 little bit of it from college, but haven't continued learning it.


 On Friday, November 8, 2013 2:08:46 PM UTC-5, don wrote:

>  On 11/08/2013 11:01 AM, Zain Dar wrote:
>
> A note to all those who see this post: *please do not be overwhelmed
> by the project!* it really is not that complicated when you think
> about it. Its just a regular knee brace with acccelerometers planted on 
> it.
> I just need help on how to make a python code for reading the
> accelerometers on the gpio pins as well as the ADC pins. *They behave
> like sensors.* The Analog accelerometers have 3 connectors for the X,
> Y and Z dimension respectively and I'm looking for a way to make a code 
> for
> reading those 3 dimensions in python. Any help is appreciated.
>
> On Monday, November 4, 2013 11:52:48 PM UTC-5, Zain Dar wrote:
>>
>> Hello, I'm working on a college project and my task is to develop a
>> software code for a knee brace, that has 6 accelerometers planted on the
>> frame (4 Analog Accelerometers and 2 Digital Accelerometers). The Analog
>> accelerometers have 3 axis of dimensions, X, Y, & Z, whereas the Digital
>> accelerometers have two interrupts (INT0 and INT1), an SDA, an SCL, a 
>> 3.3V
>> ref and a GND. I need to program the BBB to turn on the designated pins 
>> on
>> the expansion slots for the ref voltage (P8 & P9 respectively), and for 
>> the
>> reading of the accelerometers on the computer screen. After that I need 
>> to
>> store the data from the accelerometers to an SD card. The main issue for
>> this is that I'm not very good at programming, especially for the BBB 
>> since
>> I haven't worked on it before, so is there any examples 

Re: [beagleboard] Cannot SSH to ubuntu in BBB

[Priyank Patel]

Hello Robert,
I have similar problem and posted it to http://bit.ly/17fFOLX. I am running 
13.04 armhf with your kernel. How to I run this script that you mentioned 
above. Thanks.
-Priyank

On Wednesday, November 6, 2013 9:27:49 AM UTC-5, RobertCNelson wrote:
>
> On Wed, Nov 6, 2013 at 2:48 AM,  > 
> wrote: 
> > Hi everyone ! 
> > 
> > I install ubuntu 12.04, lxde in sdcard, and it work well. 
> > I run ubuntu 12.04 in my PC, and plug in BBB via sdcard that contained 
> > ubuntu 12.04, then I cannot ssh to this BBB. lsusb also doesnt show the 
> BBB. 
> > However, when I remove the sdcard and run default Angstrom, lsusb shows 
> the 
> > BBB and I can ssh to BBB too. Anyone know this problem ? Please help me 
> :) 
>
> So did you write an init script for you 12.04 to achieve this? 
>
> For the release's on: http://elinux.org/BeagleBoardUbuntu 
>
> This is the script that does that... 
> https://github.com/RobertCNelson/boot-scripts/blob/master/am335x_evm.sh 
>
> Regards, 
>
> -- 
> Robert Nelson 
> http://www.rcn-ee.com/ 
>

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[beagleboard] RE: Ubuntu 13.04 Beaglebone Black ethernet connection SSH

[Priyank Patel]

Hello all,

I have Beaglebone Black eMMC flashed with Ubuntu 13.04 (armhf). I power it 
up via USB cable phone charger and connected to my computer via ethernet. I 
was successfully able to SSH when I had Ansgstrom distrib., with both USB 
provided and Ethernet via command "ssh root@beaglebone.local". Now, after 
flashing it with Ubuntu, the only option I have is to hook up Beaglebone to 
my home router and lookup its IP via modem settings and SSH. Since it is 
inconvenient for me, I am looking for a solution that I can connect it to 
my computer via ethernet and SSH via command like "ssh 
ubuntu@ubuntu-armhf.local". Although, this command is presented on many 
support sites, I have no success with it even after multiple attempts. The 
problem I noticed is when I connect the Bone to my computer via ethernet it 
is assigned self-ip in the range 169.xxx.xxx.xxx.
Reply would be highly appreciated.

Note: Command ssh ubuntu@ubuntu-armhf.local was tried on mac and linux 
systems.

-Priyank

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Re: [beagleboard] Re: Knee Brace Project planted with 6 Accelerometers and BBB

[Mike Bremford]

Nice of the other team to leave you no documentation...

I guess if I was stuck with 12 analog inputs and only 7 pins to read them
on I would use something like a 74HC4051 to multiplex the inputs - use 3
gpio pins to control which of the 8 inputs is connected to the ADC on the
BBB. Or use an MCP3426 (or similar) - a 4-channel ADC that you can talk to
over I2C. Either way I think if you want to get 12 into 7, you're going to
need another chip.


On 9 November 2013 15:37, Zain Dar  wrote:

> Your right, I can hook up the analog sensors to the analog pins and read
> them the normal way. The reason for analog is because when i was assigned
> this project, it was already made by other teams who worked on it 2 years
> ago. It's an R/D project from the college, but they haven't provided any
> info on it from those days, except mentioning that the brace works and the
> sensors are operational. I only had to order the BBB and make a program for
> it to read those sensors in real time. I chose Python for the sake of
> simplicity and i just learned how to make use of the board from it. Its no
> problem for those asking out of curiosity, questions are welcome.
> Now since there are 7 ADC pins on it, I have 12 wires for the Analog
> sensors, each of them with X, Y and Z axis. I'm not sure how I can fit all
> of them on the ADC. Is there a way I can use the GPIO pins for any extra
> wires left over? if so, then how can i make use of them? in a loop, or a if
> statement?
>
> On Saturday, November 9, 2013 5:09:23 AM UTC-5, Mike Bremford wrote:
>
>> If they're analog, surely you'd just hook them up to the analog pins and
>> read them the normal way? Probably  with a couple of resistors to reduce
>> the voltage range to 1.8V? http://learn.adafruit.
>> com/measuring-light-with-a-beaglebone-black?view=all
>>
>> Out of curiousity is there a reason you're using analog accelerometers?
>> I'm far from a pro but I2C based ones like the ADXL345 are incredibly easy
>> to use - two slave addresses possible, you have 2 I2C busses so that's 4
>> you can access - mix in a couple of other models (eg MMA7660) or hook them
>> up via an I2C multiplexer and you can use 6. Digital is so much easier to
>> work with, not least when it comes to running the wires - 4 (3V3, SCL, SDA,
>> GND) is better than 4x3=12 for your analogs plus your 4 I2C wires for the
>> others.
>>
>>
>> On 8 November 2013 20:03, Zain Dar  wrote:
>>
>>> Well I was thinking of choosing python because of its ease of use for
>>> pin manipulation and when I first got the beaglebone, I was setting up the
>>> python library. I wasn't sure how to do it in other languages because I
>>> don't have that much experience. As far as C++ is concerned, I do know a
>>> little bit of it from college, but haven't continued learning it.
>>>
>>>
>>> On Friday, November 8, 2013 2:08:46 PM UTC-5, don wrote:
>>>
  On 11/08/2013 11:01 AM, Zain Dar wrote:

 A note to all those who see this post: *please do not be overwhelmed
 by the project!* it really is not that complicated when you think
 about it. Its just a regular knee brace with acccelerometers planted on it.
 I just need help on how to make a python code for reading the
 accelerometers on the gpio pins as well as the ADC pins. *They behave
 like sensors.* The Analog accelerometers have 3 connectors for the X,
 Y and Z dimension respectively and I'm looking for a way to make a code for
 reading those 3 dimensions in python. Any help is appreciated.

 On Monday, November 4, 2013 11:52:48 PM UTC-5, Zain Dar wrote:
>
> Hello, I'm working on a college project and my task is to develop a
> software code for a knee brace, that has 6 accelerometers planted on the
> frame (4 Analog Accelerometers and 2 Digital Accelerometers). The Analog
> accelerometers have 3 axis of dimensions, X, Y, & Z, whereas the Digital
> accelerometers have two interrupts (INT0 and INT1), an SDA, an SCL, a 3.3V
> ref and a GND. I need to program the BBB to turn on the designated pins on
> the expansion slots for the ref voltage (P8 & P9 respectively), and for 
> the
> reading of the accelerometers on the computer screen. After that I need to
> store the data from the accelerometers to an SD card. The main issue for
> this is that I'm not very good at programming, especially for the BBB 
> since
> I haven't worked on it before, so is there any examples or tutorials on 
> how
> I can make the software code from scratch or by putting different kinds of
> code together to make it work? Or is there any one who knows how to turn 
> on
> any pin on the BBB and read the accelerometers from the expansion slots? I
> appreciate anyone who helps me out on this as it is a challenging step for
> me in. Any advice is appreciated,
>
>  Thank you!
>
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Re: [beagleboard] Installing ubuntu 13.04 server

[hvn052]

Op zaterdag 9 november 2013 18:58:44 UTC+1 schreef RobertCNelson:
>
> On Sat, Nov 9, 2013 at 12:15 AM,  > wrote: 
> > Op vrijdag 8 november 2013 22:10:07 UTC+1 schreef RobertCNelson: 
> >> 
> >> On Fri, Nov 8, 2013 at 2:46 PM,   wrote: 
> >> > Op vrijdag 8 november 2013 19:02:03 UTC+1 schreef RobertCNelson: 
> >> >> 
> >> >> > dpkg-divert: error: unable to create new file 
> >> >> > '/var/lib/dpkg/diversions-new': Read-only file system 
> >> >> > cleanup failed 
> >> >> > can't remove '/target/usr/sbin/policy-rc.d': Read-only file system 
> >> >> >  
> >> >> > Cannot open question file /target/var/cache/debconf/config.dat: 
> >> >> > Read-only 
> >> >> > file system 
> >> >> > Unexpected error: command not executed: 'sh -c 
> debconf-apt-progress 
> >> >> >  tasksel' 
> >> >> >  
> >> >> > Configuring 'pkgsel' failed with error code 1 
> >> >> > 
> >> >> > So is this the usb errata bug ? 
> >> >> 
> >> >> Nah your microSD card took a drive, looks like it just could not 
> >> >> handle the sustained writes so flipped to ro..  Is this with v3.7.x 
> or 
> >> >> v3.12.x? 
> >> > 
> >> > 
> >> > This is with omap3-beagle-xm 
> >> 
> >> give "dt-beagleboard-xm" it's newer/faster and the future.. 
> >> 
> > 
> > Ok, went wrong as well: 
> > 
> > dpkg: error: '/var/lib/dpkg/reassemble.deb' doesn't exist: Read-only 
> file 
> > system 
> > 
> > This error shows for many packages. Any suggestions ? 
>
> "Read-only file system" your microSD card is crap, get ANY other 
> brand.. (SanDisk Ultra have always been reliable for me..) 
>
>
Brand is Kingston, and has worked so far using 12.04 and others. I will 
reformat it and see what it does. Don't have another brand (yet).

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[beagleboard] Re: A Guide for Determining Pin Mux Settings in the Device Tree:

[James Zapico]

I just noticed a problem with the http://pinmux.tking.org/p9.html tool. The 
p9.html page incorrectly flips the "input enabled" bit. This is confirmed 
by looking at the javascript.

The index.html (p8) javascript has this:
if (document.getElementById("inputEnabled").checked){ decPinmux += 32; }
The p9.html javascript has this:
if (document.getElementById("inputEnabled").checked == false){ decPinmux += 
32;
}

I'm attempting to get in touch with the developer to have this fixed.

On Thursday, October 10, 2013 1:14:28 AM UTC-5, Giuseppe Iellamo wrote:
>
> But this tool is for BBW or BBB?
>
> Il giorno lunedì 19 agosto 2013 15:39:48 UTC+2, Rafael Fiebig-Bindner ha 
> scritto:
>>
>> Hi,
>>
>> I just found this tool: http://pinmux.tking.org/p9.html
>> It does the same thing, but is a lot easier to use.
>>
>> Best regards
>> Rafael
>>
>

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[beagleboard] Sending an Email message from Beaglebone

[William Pretty Security]

Hello All;

 

I am hoping that someone on the list can help.

I have seen a thread about this before, but couldn't find it.

 

We have a deadline now past and could REALLY use some help here.

 

What follows are my colleague's comments from a recent email:

 

"Last week's effort was simply to use 'sendmail' to get a message out of
board.  Angstrom uses a package called 'msmtp' to implement sendmail.  

 

I downloaded this and tried it, but after hours of futzing, I still couldn't
get a message out.  Same with Perl; even after managing to install the
necessary perl modules, all that happened was the error message changed.  

 

All of the stuff that I've been trying on Angstrom actually works on Ubuntu,
so I'm thinking Angstrom is not all it's cracked up to be.  Next week's
effort will be trying Ubuntu to see if I can get this working.

 

By the way, NFS functionality doesn't seem to work in Angstrom, either.
This particular distro is _very_ frustrating :("

 

Here is the distro information:

 

Image we are using:

Angstrom-Cloud9-IDE-GNOME-eglibc-ipk-v2012.12-beaglebone-2013.06.20.img

 

Boot Messages:

The Angstrom Distribution beaglebone ttyGS0

Angstrom v2012.12 - Kernel 3.8.13

 

Thanks;

 

Bill

 

 

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Re: [beagleboard] Setting Up SD Card

[Robert Nelson]

On Sat, Nov 9, 2013 at 9:46 AM,   wrote:
>
>> hi Mr Robert Nelson
>> setting up bb by http://elinux.org/BeagleBoardUbuntu is too slow, it takes
>> about 5 hours after run the "setup_sdcard.sh" script,it is due to the
>> internet speed.
>
> though,l think is there an easy way to boot up BB?more convienient?
> THX

"5 hours"???  It's less then 5 minutes for me..

I've already provided everything you need, from images to including
step by step guides...

So what would you like me to do for you?

Regards,

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

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Re: [beagleboard] Installing ubuntu 13.04 server

[Robert Nelson]

On Sat, Nov 9, 2013 at 8:36 AM,   wrote:
>
> Op vrijdag 8 november 2013 22:10:07 UTC+1 schreef RobertCNelson:
>>
>> On Fri, Nov 8, 2013 at 2:46 PM,   wrote:
>> > Op vrijdag 8 november 2013 19:02:03 UTC+1 schreef RobertCNelson:
>> >>
>> >> > dpkg-divert: error: unable to create new file
>> >> > '/var/lib/dpkg/diversions-new': Read-only file system
>> >> > cleanup failed
>> >> > can't remove '/target/usr/sbin/policy-rc.d': Read-only file system
>> >> > 
>> >> > Cannot open question file /target/var/cache/debconf/config.dat:
>> >> > Read-only
>> >> > file system
>> >> > Unexpected error: command not executed: 'sh -c debconf-apt-progress
>> >> >  tasksel'
>> >> > 
>> >> > Configuring 'pkgsel' failed with error code 1
>> >> >
>> >> > So is this the usb errata bug ?
>> >>
>> >> Nah your microSD card took a drive, looks like it just could not
>> >> handle the sustained writes so flipped to ro..  Is this with v3.7.x or
>> >> v3.12.x?
>> >
>> >
>> > This is with omap3-beagle-xm
>>
>> give "dt-beagleboard-xm" it's newer/faster and the future..
>
>
> Ok, tried this twice, once with only the SDcard. This stops with "Read-only
> file system" as well. Then I tried using a USB stick as storage (although I
> actually don't want to) and this goes fine untill finishing. Then it can't
> write the boot disk (or have to do this somehow manually). Since it should
> be able to boot from the SDcard, I tried this and fails to boot. Then tried
> again with only SDcard, and this fails again the same way. To be clear: the
> installer suggests to install / and swap on mmcblk 5 and 6 and I say Ok to
> that because it doesn't touch the boot partition (right?)

Yes, i have partition setup configured by default to be correct, such
that you can just say okay..

Regards,

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

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Re: [beagleboard] Installing ubuntu 13.04 server

[Robert Nelson]

On Sat, Nov 9, 2013 at 12:15 AM,   wrote:
> Op vrijdag 8 november 2013 22:10:07 UTC+1 schreef RobertCNelson:
>>
>> On Fri, Nov 8, 2013 at 2:46 PM,   wrote:
>> > Op vrijdag 8 november 2013 19:02:03 UTC+1 schreef RobertCNelson:
>> >>
>> >> > dpkg-divert: error: unable to create new file
>> >> > '/var/lib/dpkg/diversions-new': Read-only file system
>> >> > cleanup failed
>> >> > can't remove '/target/usr/sbin/policy-rc.d': Read-only file system
>> >> > 
>> >> > Cannot open question file /target/var/cache/debconf/config.dat:
>> >> > Read-only
>> >> > file system
>> >> > Unexpected error: command not executed: 'sh -c debconf-apt-progress
>> >> >  tasksel'
>> >> > 
>> >> > Configuring 'pkgsel' failed with error code 1
>> >> >
>> >> > So is this the usb errata bug ?
>> >>
>> >> Nah your microSD card took a drive, looks like it just could not
>> >> handle the sustained writes so flipped to ro..  Is this with v3.7.x or
>> >> v3.12.x?
>> >
>> >
>> > This is with omap3-beagle-xm
>>
>> give "dt-beagleboard-xm" it's newer/faster and the future..
>>
>
> Ok, went wrong as well:
>
> dpkg: error: '/var/lib/dpkg/reassemble.deb' doesn't exist: Read-only file
> system
>
> This error shows for many packages. Any suggestions ?

"Read-only file system" your microSD card is crap, get ANY other
brand.. (SanDisk Ultra have always been reliable for me..)

Regards,

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

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[beagleboard] PWM is missing value files (period, duty_cycle, run).

[Bodo Kaiser]

Hi,

I am trying hardly to enable pwm on archlinux-3.8.12-13 on the Beaglebone 
black.

I came so far that after exporting the overlay there is a directory at 
"/sys/devices/ocp.3/pwm_test_P9_16.15".
Unfortunately there are no files in this directory which would allow me to 
modify duty_cycle, period and so on. I only find:
modalias power subsystem uevent

My device tree source overlay is:

/*
 * Copyright (C) 2013 CircuitCo
 * Copyright (C) 2013 Texas Instruments
 *
 * Enables PWM through ehrpwm1 on P9_14 and P9_16.
 */

/dts-v1/;
/plugin/;

/ {

part-number = "BB-HONEYMOON";
version = "00A0";

compatible = 
"ti,beaglebone", 
"ti,beaglebone-black"
;

exclusive-use =
"P9.16",
"ehrpwm1A",
"ehrpwm1B"
;

fragment@0 {
target = <&am33xx_pinmux>;
__overlay__ {
pwm_P9_16: pinmux_pwm_P9_16_pins {
pinctrl-single,pins = <0x04c 0x06>;
};
};
};

fragment@1 {
target = <&ocp>;
__overlay__ {
pwm_test_P9_16 {
status= "okay";
compatible= "pwm_test";
pwm-names = "PWM_P9_16";
pwms  = <&ehrpwm1 1 0 1>;
pinctrl-0 = <&pwm_P9_16>;
pinctrl-names = "default";
enabled   = <0>;
duty  = <0>;
};
};
};

fragment@2 {
target = <&epwmss1>;
__overlay__ {
status = "okay";
};
};

fragment@3 {
target = <&ehrpwm1>;
__overlay__ {
status = "okay";
};
};

};

When I export it through slots in bone_capemgr.* I get following in dmesg:

[   41.196408] bone-capemgr bone_capemgr.9: slot #7: generic override 
[   41.196425] bone-capemgr bone_capemgr.9: bone: Using override eeprom data at 
slot 7 
[   41.196444] bone-capemgr bone_capemgr.9: slot #7: 'Override Board 
Name,00A0,Override Manuf,BB-HONEYMOON' 
[   41.196559] bone-capemgr bone_capemgr.9: slot #7: Requesting part 
number/version based 'BB-HONEYMOON-00A0.dtbo 
[   41.196577] bone-capemgr bone_capemgr.9: slot #7: Requesting firmware 
'BB-HONEYMOON-00A0.dtbo' for board-name 'Override Board Name', version '00A0' 
[   41.196903] bone-capemgr bone_capemgr.9: slot #7: dtbo 
'BB-HONEYMOON-00A0.dtbo' loaded; converting to live tree 
[   41.197302] bone-capemgr bone_capemgr.9: slot #7: #2 overlays 
[   41.206273] bone-capemgr bone_capemgr.9: slot #7: Applied #2 overlays. 
[   41.235206] pwm_test pwm_test_P9_16.15: unable to request PWM
[   41.248481] platform pwm_test_P9_16.15: Driver pwm_test requests probe 
deferral


Hope somebody could tell me what I am doing wrong...

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Re: [beagleboard] Installing ubuntu 13.04 server

[hvn052]

Op vrijdag 8 november 2013 22:10:07 UTC+1 schreef RobertCNelson:
>
> On Fri, Nov 8, 2013 at 2:46 PM,  > wrote: 
> > Op vrijdag 8 november 2013 19:02:03 UTC+1 schreef RobertCNelson: 
> >> 
> >> > dpkg-divert: error: unable to create new file 
> >> > '/var/lib/dpkg/diversions-new': Read-only file system 
> >> > cleanup failed 
> >> > can't remove '/target/usr/sbin/policy-rc.d': Read-only file system 
> >> >  
> >> > Cannot open question file /target/var/cache/debconf/config.dat: 
> >> > Read-only 
> >> > file system 
> >> > Unexpected error: command not executed: 'sh -c debconf-apt-progress 
> >> >  tasksel' 
> >> >  
> >> > Configuring 'pkgsel' failed with error code 1 
> >> > 
> >> > So is this the usb errata bug ? 
> >> 
> >> Nah your microSD card took a drive, looks like it just could not 
> >> handle the sustained writes so flipped to ro..  Is this with v3.7.x or 
> >> v3.12.x? 
> > 
> > 
> > This is with omap3-beagle-xm 
>
> give "dt-beagleboard-xm" it's newer/faster and the future.. 
>
>
Ok, went wrong as well:

dpkg: error: '/var/lib/dpkg/reassemble.deb' doesn't exist: Read-only file 
system

This error shows for many packages. Any suggestions ?

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[beagleboard] No sound on C-Media USB Headphone Set (USB 2.0)

[oene . bakker]

Hello,

I plugged in a C-Media soundcard in het BBB (on Ubuntu 13.04).
Everything looks ok but there is no sound. The green led is burning.

I also changed the alsa-base.conf to make the C-Media sound card the 
default but that didn't work.

I did the following:

=
Step 1:
ubuntu@arm:~$ sudo apt-get install alsa-base alsa-utils alsa-oss
Reading package lists... Done
Building dependency tree
Reading state information... Done
alsa-base is already the newest version.
alsa-utils is already the newest version.
The following NEW packages will be installed:
  alsa-oss
0 upgraded, 1 newly installed, 0 to remove and 14 not upgraded.
Need to get 0 B/28.0 kB of archives.
After this operation, 112 kB of additional disk space will be used.
Do you want to continue [Y/n]? Y
Selecting previously unselected package alsa-oss.
(Reading database ... 23566 files and directories currently installed.)
Unpacking alsa-oss (from .../alsa-oss_1.0.25-1_armhf.deb) ...
Setting up alsa-oss (1.0.25-1) ...
Processing triggers for libc-bin ...
ldconfig deferred processing now taking place
ubuntu@arm:~$

=
Step 2:
ubuntu@arm:~/media$ sudo nano /etc/modprobe.d/alsa-base.conf

...
# Keep snd-usb-audio from beeing loaded as first soundcard
options snd-usb-audio index=-2
# Set sound cards
*options snd cards-limit=2*
*alias snd-card-0 snd-black*
*alias snd-card-1 snd-cmedia*
*options snd slots=snd-cmedia,snd-black*

=
Step 3: reboot

=
Step 4:
ubuntu@arm:~$ alsamixer

lq AlsaMixer v1.0.25 
qqk
x Card: TI BeagleBone BlackF1:  Help   
x
x Chip:F2:  System 
information x
x View: F3: Playback  F4: Capture  F5: All F6:  Select sound 
card  x
x Item:Esc: Exit   
x
x   
   x
x   
   x
x   
   x
xThis sound device does not have any controls. 
x
x   
   x
x   
   x
x   
   x
x   
   x
x   
   x
x   
   x
x   
   x
x   
   x
x   
   x
x   
   x
x   
   x
x   
   x
x   
   x
x   
   x
mqqj

*The C-Media card hasn't become the default...*

F6

lq AlsaMixer v1.0.25 
qqk
x Card: TI BeagleBone BlackF1:  Help   
x
x Chip:F2:  System 
information x
x View: F3: Playback  F4: Capture  F5: All F6:  Select sound 
card  x
x Item:Esc: Exit   
x
x   
   x
x   
   x
x   
   x
xThis sound device does not have any controls. 
x
xl Sound Card k 
   x
xx-  (default)x 
   x
xx0  TI BeagleBone Black  x 
   x
xx1  C-Media USB Headphone Setx 
   x
xx   enter device name... x 
   x
xmj  

[beagleboard] C-Media USB 2.0 Headphone Set no sound

[oene . bakker]

Hello,

I plugged in a C-Media 7.1 sound card in the BBB with Ubuntu 13.04 (SD card 
boot).
Everything looks allright but there is no sound.
Also the C-Media didn't become the default sound driver.

Please help.

I did the following:

=
Step 1:
ubuntu@arm:~$ sudo apt-get install alsa-base alsa-utils alsa-oss
Reading package lists... Done
Building dependency tree
Reading state information... Done
alsa-base is already the newest version.
alsa-utils is already the newest version.
The following NEW packages will be installed:
  alsa-oss
0 upgraded, 1 newly installed, 0 to remove and 14 not upgraded.
Need to get 0 B/28.0 kB of archives.
After this operation, 112 kB of additional disk space will be used.
Do you want to continue [Y/n]? Y
Selecting previously unselected package alsa-oss.
(Reading database ... 23566 files and directories currently installed.)
Unpacking alsa-oss (from .../alsa-oss_1.0.25-1_armhf.deb) ...
Setting up alsa-oss (1.0.25-1) ...
Processing triggers for libc-bin ...
ldconfig deferred processing now taking place
ubuntu@arm:~$

=
Step 2:
ubuntu@arm:~/media$ sudo nano /etc/modprobe.d/alsa-base.conf

...
# Keep snd-usb-audio from beeing loaded as first soundcard
options snd-usb-audio index=-2
# Set sound cards
options snd cards-limit=2
alias snd-card-0 snd-black
alias snd-card-1 snd-cmedia
options snd slots=snd-cmedia,snd-black

=
Step 3: reboot

=
Step 4:
ubuntu@arm:~$ alsamixer

lq AlsaMixer v1.0.25 
qqk
x Card: TI BeagleBone BlackF1:  Help   
x
x Chip:F2:  System 
information x
x View: F3: Playback  F4: Capture  F5: All F6:  Select sound 
card  x
x Item:Esc: Exit   
x
x   
   x
x   
   x
x   
   x
xThis sound device does not have any controls. 
x
x   
   x
x   
   x
x   
   x
x   
   x
x   
   x
x   
   x
x   
   x
x   
   x
x   
   x
x   
   x
x   
   x
x   
   x
x   
   x
x   
   x
mqqj

The C-Media sound card didn't become the default??

F6

lq AlsaMixer v1.0.25 
qqk
x Card: TI BeagleBone BlackF1:  Help   
x
x Chip:F2:  System 
information x
x View: F3: Playback  F4: Capture  F5: All F6:  Select sound 
card  x
x Item:Esc: Exit   
x
x   
   x
x   
   x
x   
   x
xThis sound device does not have any controls. 
x
xl Sound Card k 
   x
xx-  (default)x 
   x
xx0  TI BeagleBone Black  x 
   x
xx1  C-Media USB Headphone Setx 
   x
xx   enter device name... x 
   x
xmj 
   x
x

Re: [beagleboard] Installing ubuntu 13.04 server

[hvn052]

Op vrijdag 8 november 2013 22:10:07 UTC+1 schreef RobertCNelson:
>
> On Fri, Nov 8, 2013 at 2:46 PM,  > wrote: 
> > Op vrijdag 8 november 2013 19:02:03 UTC+1 schreef RobertCNelson: 
> >> 
> >> > dpkg-divert: error: unable to create new file 
> >> > '/var/lib/dpkg/diversions-new': Read-only file system 
> >> > cleanup failed 
> >> > can't remove '/target/usr/sbin/policy-rc.d': Read-only file system 
> >> >  
> >> > Cannot open question file /target/var/cache/debconf/config.dat: 
> >> > Read-only 
> >> > file system 
> >> > Unexpected error: command not executed: 'sh -c debconf-apt-progress 
> >> >  tasksel' 
> >> >  
> >> > Configuring 'pkgsel' failed with error code 1 
> >> > 
> >> > So is this the usb errata bug ? 
> >> 
> >> Nah your microSD card took a drive, looks like it just could not 
> >> handle the sustained writes so flipped to ro..  Is this with v3.7.x or 
> >> v3.12.x? 
> > 
> > 
> > This is with omap3-beagle-xm 
>
> give "dt-beagleboard-xm" it's newer/faster and the future.. 
>

Ok, tried this twice, once with only the SDcard. This stops with "Read-only 
file system" as well. Then I tried using a USB stick as storage (although I 
actually don't want to) and this goes fine untill finishing. Then it can't 
write the boot disk (or have to do this somehow manually). Since it should 
be able to boot from the SDcard, I tried this and fails to boot. Then tried 
again with only SDcard, and this fails again the same way. To be clear: the 
installer suggests to install / and swap on mmcblk 5 and 6 and I say Ok to 
that because it doesn't touch the boot partition (right?)

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[beagleboard] BBB: update the software

[Tiziano de togni]

Days ago I got my BeagleBone Black card. Actually I'm very satisfied for 
the choice, I got quite exactly what I expected, and now I have a lot of 
things to learn. 

The next step for me will be to update the software, and I will not proceed 
until I will have clear the whole procedure to follow. About this topic I 
see there are lot of tutorials and lot of confusion. Why?

Actually I'm still stucked on the first step: Download the image file of 
choice. 

So, my Angstrom image version is: Cloud9 GNOME Image 2013.06.06 and I need 
at least this version.

Looking for the latest flasher images I found this page: 
http://beagleboard.org/latest-images 
where there is this link: 
https://s3.amazonaws.com/angstrom/demo/beaglebone/BBB-eMMC-flasher-2013.06.20.img.xz

Ok, I say, this is the one I need. But time later, reading this (official) 
tutorial: 
http://circuitco.com/support/index.php?title=Updating_The_Software

I found this link: 
https://s3.amazonaws.com/angstrom/demo/beaglebone/BBB-eMMC-flasher-2013.09.04.img.xz

But, wait a second! There is also another page I found in the primary 
software support page:

http://downloads.angstrom-distribution.org/demo/beaglebone/

where I find these two images:
http://downloads.angstrom-distribution.org/demo/beaglebone/BBB-eMMC-flasher-2013.09.12.img.xz

http://downloads.angstrom-distribution.org/demo/beaglebone/BBB-eMMC-flasher-v2013.06-2013.10.20.img.xz
 


Ok, see there the one of october 20, but STOP! there is an extra six in 
front of it, maybe a typo?

Any advice? What should be my guess? TYA
tiziano

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Re: [beagleboard] Setting Up SD Card

[scutzhh]

> hi Mr Robert Nelson 
> setting up bb by http://elinux.org/BeagleBoardUbuntu is too slow, it takes 
> about 5 hours after run the "setup_sdcard.sh" script,it is due to the 
> internet speed.

though,l think is there an easy way to boot up BB?more convienient?
THX
  

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[beagleboard] Re: npm install bonescript Error

[Chris Rogers]

And I figured out my error...

if you type:

beaglebone# nano 
/usr/lib/node_modules/npm/node_modules/node-gyp/lib/configsre.js

search for semver.lt and replace

 if (semver.gte(version, '2.5.0') && semver.lt(version, '3.0.0')) {
getNodeDir()
  } else {
failPythonVersion(version)
  }

with

// if (semver.gte(version, '2.5.0') && semver.lt(version, '3.0.0')) {
getNodeDir()
//  } else {
//failPythonVersion(version)
//  }

Then a quick
beaglebone# node -pe "require('bonescript').getPlatform().bonescript"

returns 0.2.3 

On Wednesday, June 19, 2013 9:41:01 AM UTC-4, Jason Kridner wrote:
>
> B,
>
> I got tired of looking for your e-mail on the mailing list, so I'll just 
> put the list in reply.  This is the danger of e-mailing me support 
> questions directly--not something I like too much.
>
> On Tue, Jun 18, 2013 at 7:29 PM, B Parvizi 
> > wrote:
>
>> Hi,
>>
>> I was trying to install bonescript using npm, and I receive the following 
>> error below.  I can get the updated code using: 
>>
>> opkg update
>> opkg install bonescript
>>
>> but was hoping I could use npm so I can list bonescript as a dependency 
>> in my packages.json file.   Any help would be appreciated, thanks.  Here is 
>> the error:
>>
>> root@beaglebone:/var/lib/cloud9/bb-servo-example# npm install bonescript 
>> --save
>> npm WARN package.json bb-servo-example@0.0.0 No README.md file found!
>> npm http GET http://registry.npmjs.org/bonescript
>> npm http 304 http://registry.npmjs.org/bonescript
>>
>> > bonescript@0.2.2 preinstall 
>> /var/lib/cloud9/bb-servo-example/node_modules/bonescript
>> > node-gyp clean || (exit 0); node-gyp configure build
>>
>> gyp ERR! configure error 
>> gyp ERR! stack Error: Python executable "python" is v2.7.3, which is not 
>> supported by gyp.
>> gyp ERR! stack You can pass the --python switch to point to Python >= 
>> v2.5.0 & < 3.0.0.
>> gyp ERR! stack at failPythonVersion 
>> (/usr/lib/node_modules/npm/node_modules/node-gyp/lib/configure.js:118:14)
>> gyp ERR! stack at 
>> /usr/lib/node_modules/npm/node_modules/node-gyp/lib/configure.js:107:9
>> gyp ERR! stack at ChildProcess.exithandler (child_process.js:538:7)
>> gyp ERR! stack at ChildProcess.EventEmitter.emit (events.js:99:17)
>> gyp ERR! stack at maybeClose (child_process.js:638:16)
>> gyp ERR! stack at Process._handle.onexit (child_process.js:680:5)
>>
>
> I added a couple of debug commands to /usr/lib/node_modules/npm/
> node_modules/node-gyp/lib/configure.js and found that 'semver.lt' returns 
> false when comparing 2.7.3 and 3.0.0.  This is a bug in semver/node-gyp and 
> not BoneScript.  I simply commented out the comparison and the build 
> completed for me.
>
> Note, you do need to perform the following steps for node-gyp to run on an 
> Angstrom install that might not already have python-compiler:
> # opkg update
> # opkg install python-compiler
>  
>
>> gyp ERR! System Linux 3.8.13
>> gyp ERR! command "node" 
>> "/usr/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js" 
>> "configure" "build"
>> gyp ERR! cwd /var/lib/cloud9/bb-servo-example/node_modules/bonescript
>> gyp ERR! node -v v0.8.22
>> gyp ERR! node-gyp -v v0.8.5
>> gyp ERR! not ok 
>> npm ERR! bonescript@0.2.2 preinstall: `node-gyp clean || (exit 0); 
>> node-gyp configure build`
>> npm ERR! `sh "-c" "node-gyp clean || (exit 0); node-gyp configure build"` 
>> failed with 1
>> npm ERR! 
>> npm ERR! Failed at the bonescript@0.2.2 preinstall script.
>> npm ERR! This is most likely a problem with the bonescript package,
>> npm ERR! not with npm itself.
>> npm ERR! Tell the author that this fails on your system:
>> npm ERR! node-gyp clean || (exit 0); node-gyp configure build
>> npm ERR! You can get their info via:
>> npm ERR! npm owner ls bonescript
>> npm ERR! There is likely additional logging output above.
>>
>> npm ERR! System Linux 3.8.13
>> npm ERR! command "/usr/bin/node" "/usr/bin/npm" "install" "bonescript" 
>> "--save"
>> npm ERR! cwd /var/lib/cloud9/bb-servo-example
>> npm ERR! node -v v0.8.22
>> npm ERR! npm -v 1.2.14
>> npm ERR! code ELIFECYCLE
>> npm ERR! 
>> npm ERR! Additional logging details can be found in:
>> npm ERR! /var/lib/cloud9/bb-servo-example/npm-debug.log
>> npm ERR! not ok code 0
>>
>>
>>
>

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[beagleboard] GPIO Programming c++ library digita I/O + ADC + PWM

[francescocenci...@cencio.info]

Hi all, and sorry for bad english...

I'm an engeneering student.

I've found some C++ library about controlling digital I/O, but nothing 
about ADC read and PWM.

I think that are a lot of people that prefer programming in C++, so I 
wondered if it is possible to develop a library for Digital I/O , ADC read 
and PWM. 
I can contribute in this jobs, but i don't have bought the BBB yet, because 
i need to know if that library will be available in future

Have a nice day,
Francesco

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[beagleboard] Re: Bonescript serial communication ttyO4

[Chris Rogers]

I am not sure if you are still having issues - but I got this example 
working :

 https://github.com/jadonk/bonescript/blob/master/test/test-serial.js   

To get that version working, I had to do a few things:

1. you have to have python on your bone

# opkg update

# opkg install python-compiler
2. you need to shut off the python version check in 
/usr/lib/node_modules/npm/node_modules/node-gyp/lib/configure.js 
- I did this by typing

#nano /usr/lib/node_modules/npm/node_modules/node-gyp/lib/configure.js
then searching for semver.lt (^W) and then commenting out these lines (NOTE 
one does not get commented out):

 // if (semver.gte(version, '2.7.3') && semver.lt(version, '3.0.0')) {

getNodeDir()

 // } else {

 //   failPythonVersion(version)

 // }
3. switch paths to cloud9 (and maybe a reboot for good measure) - I am not 
sure why this is necessary - but it is...

cd /var/lib/cloud9

4. Then install the latest bonescript version (0.2.3)

npm install -g bonescript

5. test with

# node -pe "require('bonescript').getPlatform().bonescript"

6. then open cloud9 and run his example code - and all seemed to work


I hope that helps

On Monday, October 7, 2013 4:30:34 AM UTC-4, Dennis Osipov wrote:
>
> I would like to send and receive data from ttyO4 (P9_11, P9_13) using bone 
> script. Unfortunately I didn't find any projects or examples, how to make 
> it with bonescript. 
> It should be just a normal serial connection with 9600 baudrate. 
>
> Does anybody have some tips, how I can access ttyO4 with bonescript? 
>
> Thanks.
>

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[beagleboard] Re: npm install bonescript Error

[Chris Rogers]

Hi all - I am running into the same problem - but the workaround does not 
seem to fix it.  It gets me past the "bad python" call - but does not 
compile.  Any insights?  Thanks

root@beaglebone:~# npm install bonescript --save

npm http GET https://registry.npmjs.org/bonescript

npm http 304 https://registry.npmjs.org/bonescript


> bonescript@0.2.3 preinstall /home/root/node_modules/bonescript

> node-gyp clean || (exit 0); node-gyp configure build


gyp ERR! Completion callback never invoked! 

gyp ERR! System Linux 3.8.13

gyp ERR! command "node" 
"/usr/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js" 
"configure" "build"

gyp ERR! cwd /home/root/node_modules/bonescript

gyp ERR! node -v v0.8.22

gyp ERR! node-gyp -v v0.8.5

gyp ERR! This is a bug in `node-gyp`.

gyp ERR! Please file an Issue:

gyp ERR! 

npm ERR! bonescript@0.2.3 preinstall: `node-gyp clean || (exit 0); node-gyp 
configure build`

npm ERR! `sh "-c" "node-gyp clean || (exit 0); node-gyp configure build"` 
failed with 6

npm ERR! 

npm ERR! Failed at the bonescript@0.2.3 preinstall script.

npm ERR! This is most likely a problem with the bonescript package,

npm ERR! not with npm itself.

npm ERR! Tell the author that this fails on your system:

npm ERR! node-gyp clean || (exit 0); node-gyp configure build

npm ERR! You can get their info via:

npm ERR! npm owner ls bonescript

npm ERR! There is likely additional logging output above.


npm ERR! System Linux 3.8.13

npm ERR! command "/usr/bin/node" "/usr/bin/npm" "install" "bonescript" 
"--save"

npm ERR! cwd /home/root

npm ERR! node -v v0.8.22

npm ERR! npm -v 1.2.14

npm ERR! code ELIFECYCLE

npm ERR! 

npm ERR! Additional logging details can be found in:

npm ERR! /home/root/npm-debug.log

npm ERR! not ok code 0


On Wednesday, June 19, 2013 9:41:01 AM UTC-4, Jason Kridner wrote:
>
> B,
>
> I got tired of looking for your e-mail on the mailing list, so I'll just 
> put the list in reply.  This is the danger of e-mailing me support 
> questions directly--not something I like too much.
>
> On Tue, Jun 18, 2013 at 7:29 PM, B Parvizi 
> > wrote:
>
>> Hi,
>>
>> I was trying to install bonescript using npm, and I receive the following 
>> error below.  I can get the updated code using: 
>>
>> opkg update
>> opkg install bonescript
>>
>> but was hoping I could use npm so I can list bonescript as a dependency 
>> in my packages.json file.   Any help would be appreciated, thanks.  Here is 
>> the error:
>>
>> root@beaglebone:/var/lib/cloud9/bb-servo-example# npm install bonescript 
>> --save
>> npm WARN package.json bb-servo-example@0.0.0 No README.md file found!
>> npm http GET http://registry.npmjs.org/bonescript
>> npm http 304 http://registry.npmjs.org/bonescript
>>
>> > bonescript@0.2.2 preinstall 
>> /var/lib/cloud9/bb-servo-example/node_modules/bonescript
>> > node-gyp clean || (exit 0); node-gyp configure build
>>
>> gyp ERR! configure error 
>> gyp ERR! stack Error: Python executable "python" is v2.7.3, which is not 
>> supported by gyp.
>> gyp ERR! stack You can pass the --python switch to point to Python >= 
>> v2.5.0 & < 3.0.0.
>> gyp ERR! stack at failPythonVersion 
>> (/usr/lib/node_modules/npm/node_modules/node-gyp/lib/configure.js:118:14)
>> gyp ERR! stack at 
>> /usr/lib/node_modules/npm/node_modules/node-gyp/lib/configure.js:107:9
>> gyp ERR! stack at ChildProcess.exithandler (child_process.js:538:7)
>> gyp ERR! stack at ChildProcess.EventEmitter.emit (events.js:99:17)
>> gyp ERR! stack at maybeClose (child_process.js:638:16)
>> gyp ERR! stack at Process._handle.onexit (child_process.js:680:5)
>>
>
> I added a couple of debug commands to /usr/lib/node_modules/npm/
> node_modules/node-gyp/lib/configure.js and found that 'semver.lt' returns 
> false when comparing 2.7.3 and 3.0.0.  This is a bug in semver/node-gyp and 
> not BoneScript.  I simply commented out the comparison and the build 
> completed for me.
>
> Note, you do need to perform the following steps for node-gyp to run on an 
> Angstrom install that might not already have python-compiler:
> # opkg update
> # opkg install python-compiler
>  
>
>> gyp ERR! System Linux 3.8.13
>> gyp ERR! command "node" 
>> "/usr/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js" 
>> "configure" "build"
>> gyp ERR! cwd /var/lib/cloud9/bb-servo-example/node_modules/bonescript
>> gyp ERR! node -v v0.8.22
>> gyp ERR! node-gyp -v v0.8.5
>> gyp ERR! not ok 
>> npm ERR! bonescript@0.2.2 preinstall: `node-gyp clean || (exit 0); 
>> node-gyp configure build`
>> npm ERR! `sh "-c" "node-gyp clean || (exit 0); node-gyp configure build"` 
>> failed with 1
>> npm ERR! 
>> npm ERR! Failed at the bonescript@0.2.2 preinstall script.
>> npm ERR! This is most likely a problem with the bonescript package,
>> npm ERR! not with npm itself.
>> npm ERR! Tell the author that this fails on your system:
>> npm ERR! node-gyp clean || (exit 0); node-g

[beagleboard] Troubleshooting initial software update?

[napoleond1]

Hello all,

I've just gotten ahold of my BBB and have been my efforts to make the first 
software update have been for naught.

Insofar, these are the steps I've taken for updating the software:

-I've loaded the first listed Angstrom Distribution to my uSD 

-I put the card into the BBB and held the BOOT button before powering the 
board.

==
I usually get either of the following results:
---PWR LED lights up next to the 5V input (This occured when trying to 
boot from a plug-in USB and USB port from my computer)
---Occasionally my computer gets sassy and says that it "Cannot find an 
AM335x USB driver". (I downloaded, unzipped all the driver stuff for W7 and 
could navigate to it on Chrome, no other driver stuff installed beyond 
this).
==


I've searched all over for documentation on this and have come up pretty 
short. So my questions are as follows:
-- Is there something I missed that could tell me what's going on?
--If not, would anyone know what's up?
  --If no again, would anyone know an alternative booting 
method so I could start trying to mess around on this thing :p?

So I'm definitely new as all getout and will go ahead and apologize for 
probably bringing the least technically adept post to this board. Apologies 
also if this has already been addressed, a link would be great. Any help 
would be greatly appreciated and thanks in advance :).

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Re: [beagleboard] Re: Knee Brace Project planted with 6 Accelerometers and BBB

[Zain Dar]

Thanks Cathy for the help, I have been using the beaglebone getting started
link and have been trying out the examples, they have been a great help
with the tutorials. As for the ebooks, il think about it, but thanks for
referring them to me. Prof. Molloy's tutorials have also been helpful, I'll
take a look at Prof Yoder's tutorials. Overall, thanks again for helping.



On Sat, Nov 9, 2013 at 12:30 PM, TI_University_Program <
wicks.ca...@gmail.com> wrote:

> Hello Zain, I'm no help on the coding, but would like to answer your
> question on resources for learning more about BeagleBone Black.
> Best place to start is the http://www.beagleboard.org/ getting started
> link.  Plug in your board first to see the tutorials.
>  Both of these books are available via ebook download for low cost: *Bad
> to the Bone: Crafting Electronic Systems with BeagleBone and BeagleBone
> Black
> *
> *Getting Started with BeagleBone
> 
>  *
> the second book does more with python.
>
> in addition there are online resources from Prof Yoder  *MPU Sitara
> BeagleboardXM: 32-Bit Embedded Linux 
> Course*
> and Prof Molloy *Derek Molloy's video series on the Beaglebone and
> programming in embedded Linux
> *
>
> ~Cathy
>
> On Monday, November 4, 2013 10:52:48 PM UTC-6, Zain Dar wrote:
>>
>> Hello, I'm working on a college project and my task is to develop a
>> software code for a knee brace, that has 6 accelerometers planted on the
>> frame (4 Analog Accelerometers and 2 Digital Accelerometers). The Analog
>> accelerometers have 3 axis of dimensions, X, Y, & Z, whereas the Digital
>> accelerometers have two interrupts (INT0 and INT1), an SDA, an SCL, a 3.3V
>> ref and a GND. I need to program the BBB to turn on the designated pins on
>> the expansion slots for the ref voltage (P8 & P9 respectively), and for the
>> reading of the accelerometers on the computer screen. After that I need to
>> store the data from the accelerometers to an SD card. The main issue for
>> this is that I'm not very good at programming, especially for the BBB since
>> I haven't worked on it before, so is there any examples or tutorials on how
>> I can make the software code from scratch or by putting different kinds of
>> code together to make it work? Or is there any one who knows how to turn on
>> any pin on the BBB and read the accelerometers from the expansion slots? I
>> appreciate anyone who helps me out on this as it is a challenging step for
>> me in. Any advice is appreciated,
>>
>> Thank you!
>>
>  --
> For more options, visit http://beagleboard.org/discuss
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Re: [beagleboard] Re: Passwordless login to GDM for user other than root

[Will Kostelecky]

Don:

Thanks for your help... there is obviously something going on under the
covers that I just don't want to invest the time right now to try and
debug.   I hope that it is something simple and that someone that has it
working in Angstrom world can help with.  Running as root for now as that
does work...!

Will


On Sat, Nov 9, 2013 at 5:23 PM, Don deJuan  wrote:

>  Sorry I cant be of more help but yes I agree your session is not being
> started properly and gvfs should be putting that directory into one for
> your user. Or maybe your user is not setup properly either.
>
> I know it works in Arch Linux.
>
>
> On 11/09/2013 12:44 AM, Will Kostelecky wrote:
>
> Don:
>
> Thanks for your advice.   First on the parameters.   I did try the "auth
> sufficient pam_succeed_if.so user ingroup nopasswdlogin " parameter a while
> ago and it
> did not make any difference.   I think whoever did the image for the BBB
> used the timed login to make sure some startup stuff completed.   Without
> it I get a message about something still running (when root is logging
> in).
>
> In terms of the logs.  The one place where something seems relevant is in
> /var/log/gdm/:0-greeter.log.   It shows some permission problems that
> happen with my user and also with the xuser that came as part of the
> distribution image.
>
> (gnome-settings-daemon:441): GVFS-RemoteVolumeMonitor-WARNING **: cannot
> open directory /usr/share/gvfs/remote-volume-monitors: Error opening
> directory '/usr/share/gvfs/remote-volume-monitors': Permission denied
>
> (polkit-gnome-authentication-agent-1:444): polkit-gnome-1-WARNING **:
> Unable to determine the session we are in: No session for pid 444
> Xlib:  extension "DPMS" missing on display ":0".
> gdm-simple-greeter[446]: GVFS-RemoteVolumeMonitor-WARNING: cannot open
> directory /usr/share/gvfs/remote-volume-monitors: Error opening directory
> '/usr/share/gvfs/remote-volume-monitors': Permission denied
> gdm-simple-greeter[446]: Gtk-WARNING: gtkwidget.c:5709: widget not within
> a GtkWindow
> shell-init: error retrieving current directory: getcwd: cannot access
> parent directories: Permission denied
> gdm-simple-greeter[446]: WARNING: Unable to load CK history: no seat-id
> found
>
> I guess that I have been hoping that someone from the BBB team that
> created their image would see this post.   There is either something wrong
> with the scripts behind gdm or I am just missing some key permission or
> group?  I really, really, really don't want to have to dig into the details
> of how a gdm login happens if I don't have to.
>
> Cheers,
> Will
>
>
> On Friday, 8 November 2013 19:26:55 UTC, don wrote:
>>
>>  On 11/08/2013 06:29 AM, Will Kostelecky wrote:
>>
>> After a lot more research it does seem like all that should be necessary
>> is to have these lines...
>>
>> [daemon]
>> TimedLoginEnable=true
>> TimedLogin=
>> TimedLoginDelay=10
>>
>> ...in /etc/gdm/custom.conf.   I have booted my BBB from a fresh flash,
>> added my own user, changed the above to reflect the new user, and still the
>> login greeting panel hangs.  When looking at top I do not see anything
>> obvious that is running.
>>
>> PLEASE can someone HELP?
>>
>> Will
>>
>> On Wednesday, 6 November 2013 23:08:54 UTC, Will Kostelecky wrote:
>>>
>>> I want to setup my BBB to have a user other than root login to the gdm
>>> without entering a password.   I have editted the /etc/gdm/custom.conf file
>>> to replace root with the name of my user but the login does not complete.
>>> It either hangs at the login window waiting for a password...or it just
>>> hangs there without asking for a password.   I have logged into gdm using
>>> the new user ID so I know it works.
>>>
>>> Thanks,
>>> Will
>>>
>>  --
>> For more options, visit http://beagleboard.org/discuss
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>> email to beagleboard...@googlegroups.com.
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>>
>> Why are you not checking your logs for what is happening?
>>
>> I do not use Angstrom so cant really be of much use other than suggesting
>> what upstream expects the package to "act" like.
>>
>> On one of my arch installs I installed GDM and setup passwordless logins
>> as the DOCs for GDM suggest. Have you tried the non timed option?
>>
>> AutomaticLogin=username
>> AutomaticLoginEnable=True
>>
>> Also have you this this in pam.d/gdm?
>>
>> auth sufficient pam_succeed_if.so user ingroup nopasswdlogin
>>
>> then add a nopasswdlogin group and add the user to it? Not sure what
>> version of GDM you're on.
>>
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[beagleboard] Re: Knee Brace Project planted with 6 Accelerometers and BBB

[TI_University_Program]

Hello Zain, I'm no help on the coding, but would like to answer your 
question on resources for learning more about BeagleBone Black. 
Best place to start is the http://www.beagleboard.org/ getting started 
link.  Plug in your board first to see the tutorials.
 Both of these books are available via ebook download for low cost: *Bad to 
the Bone: Crafting Electronic Systems with BeagleBone and BeagleBone Black 
*
*Getting Started with BeagleBone 

 *
the second book does more with python.

in addition there are online resources from Prof Yoder  *MPU Sitara 
BeagleboardXM: 32-Bit Embedded Linux 
Course*
and Prof Molloy *Derek Molloy's video series on the Beaglebone and 
programming in embedded Linux 
*

~Cathy

On Monday, November 4, 2013 10:52:48 PM UTC-6, Zain Dar wrote:
>
> Hello, I'm working on a college project and my task is to develop a 
> software code for a knee brace, that has 6 accelerometers planted on the 
> frame (4 Analog Accelerometers and 2 Digital Accelerometers). The Analog 
> accelerometers have 3 axis of dimensions, X, Y, & Z, whereas the Digital 
> accelerometers have two interrupts (INT0 and INT1), an SDA, an SCL, a 3.3V 
> ref and a GND. I need to program the BBB to turn on the designated pins on 
> the expansion slots for the ref voltage (P8 & P9 respectively), and for the 
> reading of the accelerometers on the computer screen. After that I need to 
> store the data from the accelerometers to an SD card. The main issue for 
> this is that I'm not very good at programming, especially for the BBB since 
> I haven't worked on it before, so is there any examples or tutorials on how 
> I can make the software code from scratch or by putting different kinds of 
> code together to make it work? Or is there any one who knows how to turn on 
> any pin on the BBB and read the accelerometers from the expansion slots? I 
> appreciate anyone who helps me out on this as it is a challenging step for 
> me in. Any advice is appreciated,
>
> Thank you!
>

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Re: [beagleboard] Re: Passwordless login to GDM for user other than root

[Don deJuan]

Sorry I cant be of more help but yes I agree your session is not being
started properly and gvfs should be putting that directory into one for
your user. Or maybe your user is not setup properly either.

I know it works in Arch Linux.


On 11/09/2013 12:44 AM, Will Kostelecky wrote:
> Don:
>
> Thanks for your advice.   First on the parameters.   I did try the
> "auth sufficient pam_succeed_if.so user ingroup nopasswdlogin "
> parameter a while ago and it
> did not make any difference.   I think whoever did the image for the
> BBB used the timed login to make sure some startup stuff completed.  
> Without it I get a message about something still running (when root is
> logging in).  
>
> In terms of the logs.  The one place where something seems relevant is
> in /var/log/gdm/:0-greeter.log.   It shows some permission problems
> that happen with my user and also with the xuser that came as part of
> the distribution image.
>
> (gnome-settings-daemon:441): GVFS-RemoteVolumeMonitor-WARNING **:
> cannot open directory /usr/share/gvfs/remote-volume-monitors: Error
> opening directory '/usr/share/gvfs/remote-volume-monitors': Permission
> denied
>
> (polkit-gnome-authentication-agent-1:444): polkit-gnome-1-WARNING **:
> Unable to determine the session we are in: No session for pid 444
> Xlib:  extension "DPMS" missing on display ":0".
> gdm-simple-greeter[446]: GVFS-RemoteVolumeMonitor-WARNING: cannot open
> directory /usr/share/gvfs/remote-volume-monitors: Error opening
> directory '/usr/share/gvfs/remote-volume-monitors': Permission denied
> gdm-simple-greeter[446]: Gtk-WARNING: gtkwidget.c:5709: widget not
> within a GtkWindow
> shell-init: error retrieving current directory: getcwd: cannot access
> parent directories: Permission denied
> gdm-simple-greeter[446]: WARNING: Unable to load CK history: no
> seat-id found
>
> I guess that I have been hoping that someone from the BBB team that
> created their image would see this post.   There is either something
> wrong with the scripts behind gdm or I am just missing some key
> permission or group?  I really, really, really don't want to have to
> dig into the details of how a gdm login happens if I don't have to.  
>
> Cheers,
> Will
>
>
> On Friday, 8 November 2013 19:26:55 UTC, don wrote:
>
> On 11/08/2013 06:29 AM, Will Kostelecky wrote:
>> After a lot more research it does seem like all that should be
>> necessary is to have these lines...
>>
>> [daemon]
>> TimedLoginEnable=true
>> TimedLogin=
>> TimedLoginDelay=10
>>
>> ...in /etc/gdm/custom.conf.   I have booted my BBB from a fresh
>> flash, added my own user, changed the above to reflect the new
>> user, and still the login greeting panel hangs.  When looking at
>> top I do not see anything obvious that is running.
>>
>> PLEASE can someone HELP?
>>
>> Will
>>
>> On Wednesday, 6 November 2013 23:08:54 UTC, Will Kostelecky wrote:
>>
>> I want to setup my BBB to have a user other than root login
>> to the gdm without entering a password.   I have editted the
>> /etc/gdm/custom.conf file to replace root with the name of my
>> user but the login does not complete.   It either hangs at
>> the login window waiting for a password...or it just hangs
>> there without asking for a password.   I have logged into gdm
>> using the new user ID so I know it works.
>>
>> Thanks,
>> Will
>>
>> -- 
>> For more options, visit http://beagleboard.org/discuss
>> ---
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>> Google Groups "BeagleBoard" group.
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>> send an email to beagleboard...@googlegroups.com .
>> For more options, visit https://groups.google.com/groups/opt_out
>> .
> Why are you not checking your logs for what is happening?
>
> I do not use Angstrom so cant really be of much use other than
> suggesting what upstream expects the package to "act" like.
>
> On one of my arch installs I installed GDM and setup passwordless
> logins as the DOCs for GDM suggest. Have you tried the non timed
> option?
>
> AutomaticLogin=username
> AutomaticLoginEnable=True
>
> Also have you this this in pam.d/gdm?
>
> auth sufficient pam_succeed_if.so user ingroup nopasswdlogin
>
> then add a nopasswdlogin group and add the user to it? Not sure
> what version of GDM you're on.
>
> -- 
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> ---
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You receiv

Re: [beagleboard] Re: Knee Brace Project planted with 6 Accelerometers and BBB

[Zain Dar]

Your right, I can hook up the analog sensors to the analog pins and read 
them the normal way. The reason for analog is because when i was assigned 
this project, it was already made by other teams who worked on it 2 years 
ago. It's an R/D project from the college, but they haven't provided any 
info on it from those days, except mentioning that the brace works and the 
sensors are operational. I only had to order the BBB and make a program for 
it to read those sensors in real time. I chose Python for the sake of 
simplicity and i just learned how to make use of the board from it. Its no 
problem for those asking out of curiosity, questions are welcome. 
Now since there are 7 ADC pins on it, I have 12 wires for the Analog 
sensors, each of them with X, Y and Z axis. I'm not sure how I can fit all 
of them on the ADC. Is there a way I can use the GPIO pins for any extra 
wires left over? if so, then how can i make use of them? in a loop, or a if 
statement?

On Saturday, November 9, 2013 5:09:23 AM UTC-5, Mike Bremford wrote:
>
> If they're analog, surely you'd just hook them up to the analog pins and 
> read them the normal way? Probably  with a couple of resistors to reduce 
> the voltage range to 1.8V? 
> http://learn.adafruit.com/measuring-light-with-a-beaglebone-black?view=all
>
> Out of curiousity is there a reason you're using analog accelerometers? 
> I'm far from a pro but I2C based ones like the ADXL345 are incredibly easy 
> to use - two slave addresses possible, you have 2 I2C busses so that's 4 
> you can access - mix in a couple of other models (eg MMA7660) or hook them 
> up via an I2C multiplexer and you can use 6. Digital is so much easier to 
> work with, not least when it comes to running the wires - 4 (3V3, SCL, SDA, 
> GND) is better than 4x3=12 for your analogs plus your 4 I2C wires for the 
> others.
>
>
> On 8 November 2013 20:03, Zain Dar >wrote:
>
>> Well I was thinking of choosing python because of its ease of use for pin 
>> manipulation and when I first got the beaglebone, I was setting up the 
>> python library. I wasn't sure how to do it in other languages because I 
>> don't have that much experience. As far as C++ is concerned, I do know a 
>> little bit of it from college, but haven't continued learning it.
>>
>>
>> On Friday, November 8, 2013 2:08:46 PM UTC-5, don wrote:
>>
>>>  On 11/08/2013 11:01 AM, Zain Dar wrote:
>>>  
>>> A note to all those who see this post: *please do not be overwhelmed by 
>>> the project!* it really is not that complicated when you think about 
>>> it. Its just a regular knee brace with acccelerometers planted on it. I 
>>> just need help on how to make a python code for reading the accelerometers 
>>> on the gpio pins as well as the ADC pins. *They behave like sensors.*The 
>>> Analog accelerometers have 3 connectors for the X, Y and Z dimension 
>>> respectively and I'm looking for a way to make a code for reading those 3 
>>> dimensions in python. Any help is appreciated.
>>>
>>> On Monday, November 4, 2013 11:52:48 PM UTC-5, Zain Dar wrote: 

 Hello, I'm working on a college project and my task is to develop a 
 software code for a knee brace, that has 6 accelerometers planted on the 
 frame (4 Analog Accelerometers and 2 Digital Accelerometers). The Analog 
 accelerometers have 3 axis of dimensions, X, Y, & Z, whereas the Digital 
 accelerometers have two interrupts (INT0 and INT1), an SDA, an SCL, a 3.3V 
 ref and a GND. I need to program the BBB to turn on the designated pins on 
 the expansion slots for the ref voltage (P8 & P9 respectively), and for 
 the 
 reading of the accelerometers on the computer screen. After that I need to 
 store the data from the accelerometers to an SD card. The main issue for 
 this is that I'm not very good at programming, especially for the BBB 
 since 
 I haven't worked on it before, so is there any examples or tutorials on 
 how 
 I can make the software code from scratch or by putting different kinds of 
 code together to make it work? Or is there any one who knows how to turn 
 on 
 any pin on the BBB and read the accelerometers from the expansion slots? I 
 appreciate anyone who helps me out on this as it is a challenging step for 
 me in. Any advice is appreciated, 

  Thank you!
  
>>>  -- 
>>> For more options, visit http://beagleboard.org/discuss
>>> --- 
>>> You received this message because you are subscribed to the Google 
>>> Groups "BeagleBoard" group.
>>> To unsubscribe from this group and stop receiving emails from it, send 
>>> an email to beagleboard...@googlegroups.com.
>>>
>>> For more options, visit https://groups.google.com/groups/opt_out.
>>>
>>> Maybe this will help some. I am not a big python guy so dont have code 
>>> to share. Why did you choose python over other languages? 
>>> http://chumbylab.blogspot.com/2012/04/reading-accelerometer-
>>> and-thus-i2c-from.html
>>>  
>>  -- 
>> F

[beagleboard] Re: Can't get BeagleSNES to work on BBB

[Andrew Henderson]

Hello Scott.  Here are some of the usual problems that I see when people 
contact me about BeagleSNES:

1. Did you download the beaglesnes_full.img.bz2 file?  Sometimes, people 
download one of the other files, which provides a portion of the system or 
the source code, rather than the executable image.
2. Did you decompress the BeagleSNES image before you wrote it to the 
microSD card?  I have had reports from people using my Android image that 
if you write the image without decompressing it, you get similar behavior 
to what you are reporting.
3. The root filesystem in the image is EXT4, which won't mount under 
Windows 7.  If you don't have a Linux system to mount the microSD card 
under, you'll need to either copy the ROMs over to the BBB via the network 
or copy them onto the /boot partition (which mounts under Windows) and then 
copy them from the /boot partition into the proper place once you get 
BeagleSNES booted.
4. Are you holding down the boot button to force the system to boot off the 
microSD card?  You DO NOT have to do this.  I wrote the uEnv.txt in the 
BeagleSNES /boot partition to specify the microSD card device as the boot 
device, so you can just pop in the microSD card and it will boot.

A 4 GB microSD card is fine, since I made the image about 3.6 GB in size to 
account for slightly smaller microSD cards that advertise themselves as 4 
GB.

Your first step is to get the system booted.  Then you can add some ROMs. 
 If you have written the image properly, it should boot to the game 
selection GUI with the placeholder entries in the menu.  If you aren't 
seeing anything over the FTDI cable with PuTTY when you boot, you probably 
are writing the still-compressed image to the microSD card.

Andrew


On Friday, November 8, 2013 6:27:00 PM UTC-5, Scott Paul wrote:
>
> Hello, first time using a BBB, and I've hit a wall.  I'm good with Arduino 
> toys and before switching back to Windows 7 I used multiple Ubuntu machines 
> for about 3 years.  So some of this BBB stuff isn't too far fetched for me.
>
> I bought the board from Adafruit about 2 weeks ago now for the soul 
> purpose of getting BeagleSNES to work on it.  From what I can tell, the SD 
> card isn't getting written correctly or the Beagle can't read it as it 
> should.
>
> I followed the getting started for BBB.  I was able to plug it in and see 
> it and then use Putty to log in as root.  I also downloaded the latest 
> software for it, imaged that onto an SD card and the update went fine, 
> although it took about 65 minutes.  Much longer than the "caution, may take 
> 45 minutes" warning suggested.  After plugging it back into my Windows 7 
> machine it looks fine, so the update seems to have worked, so my SD card 
> burning ability is fine, and the BBB can read the card.
>
> So I download the full BBB image, write that to a card, plug it into the 
> BBB, plug in the miniUSB cable to Windows, and all I get is a unique blink 
> pattern for about the first 10 seconds on power up.  After that, its just 
> the heartbeat pattern.  Windows never sees any partition, so I can't copy 
> my roms to it.  Basically it looks frozen somewhere.  I checked the MD5 
> hash whatever code and it is a match for the file from Sourceforge.  I try 
> just plugging everything into the TV anyways (2 different TV's) and there 
> is nothing.  I follow the instructions closely and repeat, nothing.  I 
> deviate a little and try resetting or holding the boot button longer, 
> nothing. Just a heartbeat and no screen or sound action.
>
> Then I go back and reburn the image to another 4Gb card, nothing on 
> Windows or at the TV.  I redownload the zipped image, rewrite both cards, 
> nothing.
>
> In summary, a whole lotta nothing :)  It seems like all the pieces have 
> proven they work somehow, except the actual BeagleSNES image, which I 
> downloaded twice and re-wrote to multiple cards, multiple times.  
>
> Now I am downloading Android and going to burn that to another card to see 
> if that will work.  If that works for me, then what?  Is BeagleSNES working 
> with the latest of everything?  I assume it is or I would be able to find 
> more problems in searching this forum, but I didn't.
>
> Should I try to do a complete format of the microSD card before writing 
> the image to it?  I don't think that should matter.
> Should I try getting an 8Gb card? I saw on some write ups that 4Gb is 
> close and might not always work for other images.
>

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[beagleboard] compiling kernel 3.12 on beaglebone black?

[Jacob Ole Juul Kolding]

Hi

I'd like to try compiling Linux kernel 3.12 for my BBB, but i don't really
know where to start.

Can anyone give me any pointers?

I'd prefer to compile directly on the BBB instead of cross-compiling.

Thanks

/Jacob

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[beagleboard] Re: Modifying Arduino libraries to use with BBB

[Vlad Ungureanu]

Hi, 

Don't really know about how shields will work with the BBB but this summer 
it was done http://elinux.org/Userspace_Arduino during Google Summer of 
Code. They have good support for basic libraries as far as I remember.

On Friday, November 8, 2013 10:03:38 PM UTC+1, Jim Hodgers wrote:
>
> I been using Arduino's for quite a while. I not a super programmer, more 
> newbie. I have many Arduino shields and bricks. They mostly require 
> libraries to run on Arduino. I woyld like to use them directly on the BBB 
> through level shifters. Has someone already tried this?
>
> Jim
>

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Re: [beagleboard] Chipsee 7" cap touchscreen v1 Expansion for BBB dtbo

[Kishor Dhanawade]

Hello,
  ChipSee 7" LCD + Beaglebone Black + ubuntu 12.04 (3.8.13).
Did you get success to run ChipSee's 7" LCD with 3.8 kernel??

Thanks.

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Re: [beagleboard] Re: Beaglebone Black freezing, USB related?

[Mike Bremford]

I switched up to Kernel 3.12 and that certainly fixed my stability issues
with USB - haven't seen any USB related issues since then, wireless is
fine, 3G modem is fine, everything working. Unfortunately I've lost my
UARTs, but that's a different story and no doubt one that will resolve
itself as more time is spent on getting 3.12 to stable.

Certainly for anyone else having similar USB issues, there's a good chance
kernel 3.8 is the cause and kernel 3.12 is the solution



On 8 November 2013 21:39,  wrote:

> I should also add that all of these USB devices work rock solid running
> the same code and drivers on an intel laptop with Ubuntu.
>
>
> On Friday, November 8, 2013 1:15:19 PM UTC-8, phil...@gmail.com wrote:
>>
>> We have a system with many USB peripherals, and we have done a lot of
>> experimenting with them.
>> Some peripherals play nicer than others, and some cause problems right
>> away. In general, the more USB traffic there is, the more likely we are to
>> have problems, and the sooner we see system crashes etc.
>>
>> Our Huawei Cell modem seems to cause problems, as do some wifi adapters,
>> and some Phidget interface devices, especially with lots of data flowing.
>> By itself our Logitech quickcam pro 9000 seems OK, but when we are using
>> it along with other devices we see problems.
>> Simple keyboards/mice, bluetooth adapters, and GPS serial ports seem OK.
>> Sometimes by minimizing the number of devices attached it mitigates but
>> does not solve the USB connects/disconnects and system crashes.
>>
>>
>> On Friday, November 8, 2013 11:02:20 AM UTC-8, Philip Polstra wrote:
>>>
>>> Have you seen any issues with a specific type of USB device?  I have had
>>> good luck with the Alfa wireless adapters, but have seen issues with some
>>> other adapters.  YMMV.
>>>
>>>
>>> On Fri, Nov 8, 2013 at 12:51 PM,  wrote:
>>>
 We have seen similar issues with USB devices on the BBB and are pretty
 mystified. We suspect a low-level bug in the USB drivers.
 Did you ever get a good resolution?

 BTW, on the HDMI console you will probably not see kernel panic
 messages- they are usually brought out only on the serial header, for which
 you will need a 3.3V USB/serial FTDI adapter.
 We also see lots of warnings and USB connect/disconnects in the system
 logs.




 On Saturday, November 2, 2013 6:30:44 AM UTC-7, mi...@bfo.co.uk wrote:
>
> Hi all
>
> New here, but I've been experimenting with the BeagleBone black for a
> few months now with much success - I2C, SPI, ADC, GPIO, UARTS are all
> working for me, and I have a my custom cape wining it's way from the fab 
> to
> me as I type. But now I'm trying to integrate it with the USB peripherals
> I'll need and I am getting constant freezes.
>
> My setup. I have a good power supply (3A 5V) connected via the barrel
> connector. I have a powered USB hub from a reputable manufacturer and 
> which
> also has a 3A supply. In that hub I have a bluetooth dongle, an Atheros 9K
> based Wifi dongle, and a Huawei E3131 3G modem. There's also an ethernet
> connection. I'm running a system derived from the Ubuntu self-installer on
> eLinux.org (ie that plus updates and a few additional packages) with
> the 3.8.13-bone28 kernel.
>
> The symptoms are after a variable number of hours the device hangs.
> The heartbeat LED stops and it drops off the network. I'm normally running
> with HDMI disabled but when I enable it I see nothing on the screen except
> the console login - no panic message, although when it's hung the cursor
> stops blinking. I have to power cycle it and when it comes back there is
> nothing in the logs.
>
> So I haven't got much to work from here. I had loads of issues with
> another Wifi card so switched to one with the atheros chipset, but I still
> suspect it's the USB subsystem causing the problems as I had no issues
> until I started plugging in devices (plus the hotplug doesn't seem to work
> reliably under 3.8.13).
>
> So I guess my questions are:
>
> 1. Does anyone have any suggestions - I gather a few people have been
> here before me.
>
> 2. Is there any way I can get some logs out of this? I've been running
> LInux for 20 years but am new to embedded, and I find a crash with no 
> panic
> message quite disconcerting!
>
> 3. Is it likely to be hardware or software causing this? The
> beaglebone black is about 3 months old, so I think it's the latest 
> revision.
>
> 4. At this point I guess my next option is upgrading to the
> EXPERIMENTAL or TESTING kernels from Robert Nelson (at 3.12.0-rc3 and rc7
> respectively at the moment) - has anyone tried these, and are they fit for
> purpose?
>
> Thanks in advance.
>
>
> Cheers... Mike
>
>  --
 For more options, visit http://

Re: [beagleboard] Re: Knee Brace Project planted with 6 Accelerometers and BBB

[Mike Bremford]

If they're analog, surely you'd just hook them up to the analog pins and
read them the normal way? Probably  with a couple of resistors to reduce
the voltage range to 1.8V?
http://learn.adafruit.com/measuring-light-with-a-beaglebone-black?view=all

Out of curiousity is there a reason you're using analog accelerometers? I'm
far from a pro but I2C based ones like the ADXL345 are incredibly easy to
use - two slave addresses possible, you have 2 I2C busses so that's 4 you
can access - mix in a couple of other models (eg MMA7660) or hook them up
via an I2C multiplexer and you can use 6. Digital is so much easier to work
with, not least when it comes to running the wires - 4 (3V3, SCL, SDA, GND)
is better than 4x3=12 for your analogs plus your 4 I2C wires for the others.


On 8 November 2013 20:03, Zain Dar  wrote:

> Well I was thinking of choosing python because of its ease of use for pin
> manipulation and when I first got the beaglebone, I was setting up the
> python library. I wasn't sure how to do it in other languages because I
> don't have that much experience. As far as C++ is concerned, I do know a
> little bit of it from college, but haven't continued learning it.
>
>
> On Friday, November 8, 2013 2:08:46 PM UTC-5, don wrote:
>
>>  On 11/08/2013 11:01 AM, Zain Dar wrote:
>>
>> A note to all those who see this post: *please do not be overwhelmed by
>> the project!* it really is not that complicated when you think about it.
>> Its just a regular knee brace with acccelerometers planted on it. I just
>> need help on how to make a python code for reading the accelerometers on
>> the gpio pins as well as the ADC pins. *They behave like sensors.* The
>> Analog accelerometers have 3 connectors for the X, Y and Z dimension
>> respectively and I'm looking for a way to make a code for reading those 3
>> dimensions in python. Any help is appreciated.
>>
>> On Monday, November 4, 2013 11:52:48 PM UTC-5, Zain Dar wrote:
>>>
>>> Hello, I'm working on a college project and my task is to develop a
>>> software code for a knee brace, that has 6 accelerometers planted on the
>>> frame (4 Analog Accelerometers and 2 Digital Accelerometers). The Analog
>>> accelerometers have 3 axis of dimensions, X, Y, & Z, whereas the Digital
>>> accelerometers have two interrupts (INT0 and INT1), an SDA, an SCL, a 3.3V
>>> ref and a GND. I need to program the BBB to turn on the designated pins on
>>> the expansion slots for the ref voltage (P8 & P9 respectively), and for the
>>> reading of the accelerometers on the computer screen. After that I need to
>>> store the data from the accelerometers to an SD card. The main issue for
>>> this is that I'm not very good at programming, especially for the BBB since
>>> I haven't worked on it before, so is there any examples or tutorials on how
>>> I can make the software code from scratch or by putting different kinds of
>>> code together to make it work? Or is there any one who knows how to turn on
>>> any pin on the BBB and read the accelerometers from the expansion slots? I
>>> appreciate anyone who helps me out on this as it is a challenging step for
>>> me in. Any advice is appreciated,
>>>
>>>  Thank you!
>>>
>>  --
>> For more options, visit http://beagleboard.org/discuss
>> ---
>> You received this message because you are subscribed to the Google Groups
>> "BeagleBoard" group.
>> To unsubscribe from this group and stop receiving emails from it, send an
>> email to beagleboard...@googlegroups.com.
>>
>> For more options, visit https://groups.google.com/groups/opt_out.
>>
>> Maybe this will help some. I am not a big python guy so dont have code to
>> share. Why did you choose python over other languages?
>> http://chumbylab.blogspot.com/2012/04/reading-accelerometer-
>> and-thus-i2c-from.html
>>
>  --
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> ---
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Re: [beagleboard] Re: Passwordless login to GDM for user other than root

[Will Kostelecky]

Don:

Thanks for your advice.   First on the parameters.   I did try the "auth 
sufficient pam_succeed_if.so user ingroup nopasswdlogin " parameter a while 
ago and it 
did not make any difference.   I think whoever did the image for the BBB 
used the timed login to make sure some startup stuff completed.   Without 
it I get a message about something still running (when root is logging 
in).   

In terms of the logs.  The one place where something seems relevant is in 
/var/log/gdm/:0-greeter.log.   It shows some permission problems that 
happen with my user and also with the xuser that came as part of the 
distribution image.

(gnome-settings-daemon:441): GVFS-RemoteVolumeMonitor-WARNING **: cannot 
open directory /usr/share/gvfs/remote-volume-monitors: Error opening 
directory '/usr/share/gvfs/remote-volume-monitors': Permission denied

(polkit-gnome-authentication-agent-1:444): polkit-gnome-1-WARNING **: 
Unable to determine the session we are in: No session for pid 444
Xlib:  extension "DPMS" missing on display ":0".
gdm-simple-greeter[446]: GVFS-RemoteVolumeMonitor-WARNING: cannot open 
directory /usr/share/gvfs/remote-volume-monitors: Error opening directory 
'/usr/share/gvfs/remote-volume-monitors': Permission denied
gdm-simple-greeter[446]: Gtk-WARNING: gtkwidget.c:5709: widget not within a 
GtkWindow
shell-init: error retrieving current directory: getcwd: cannot access 
parent directories: Permission denied
gdm-simple-greeter[446]: WARNING: Unable to load CK history: no seat-id 
found

I guess that I have been hoping that someone from the BBB team that created 
their image would see this post.   There is either something wrong with the 
scripts behind gdm or I am just missing some key permission or group?  I 
really, really, really don't want to have to dig into the details of how a 
gdm login happens if I don't have to.   

Cheers,
Will


On Friday, 8 November 2013 19:26:55 UTC, don wrote:
>
>  On 11/08/2013 06:29 AM, Will Kostelecky wrote:
>  
> After a lot more research it does seem like all that should be necessary 
> is to have these lines...
>
> [daemon]
> TimedLoginEnable=true
> TimedLogin=
> TimedLoginDelay=10
>
> ...in /etc/gdm/custom.conf.   I have booted my BBB from a fresh flash, 
> added my own user, changed the above to reflect the new user, and still the 
> login greeting panel hangs.  When looking at top I do not see anything 
> obvious that is running. 
>
> PLEASE can someone HELP?
>
> Will
>
> On Wednesday, 6 November 2013 23:08:54 UTC, Will Kostelecky wrote: 
>>
>> I want to setup my BBB to have a user other than root login to the gdm 
>> without entering a password.   I have editted the /etc/gdm/custom.conf file 
>> to replace root with the name of my user but the login does not complete.   
>> It either hangs at the login window waiting for a password...or it just 
>> hangs there without asking for a password.   I have logged into gdm using 
>> the new user ID so I know it works.
>>
>> Thanks,
>> Will
>>  
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> Why are you not checking your logs for what is happening? 
>
> I do not use Angstrom so cant really be of much use other than suggesting 
> what upstream expects the package to "act" like. 
>
> On one of my arch installs I installed GDM and setup passwordless logins 
> as the DOCs for GDM suggest. Have you tried the non timed option? 
>
> AutomaticLogin=username
> AutomaticLoginEnable=True
>
> Also have you this this in pam.d/gdm?
>
> auth sufficient pam_succeed_if.so user ingroup nopasswdlogin
>
> then add a nopasswdlogin group and add the user to it? Not sure what 
> version of GDM you're on. 
>  

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