[beagleboard] Debian 7.6 libstdc++ problem

[bremenpl]

Hello there,
I am using latest Debian on my bbb:

Distributor ID:Debian
Description:Debian GNU/Linux 7.6 (wheezy)
Release:7.6
Codename:wheezy

I have compilled a test program on my PC using arm-linux-gnueabi-g++-4.7 
and it works perfectly well on my Raspberry pi. When i try to run this 
program on bbb what i get is this message:

root@beaglebone:/home/debian/testy# ./bcm_test 
./bcm_test: error while loading shared libraries: libstdc++.so.6: cannot 
open shared object file: No such file or directory

I did a system update and ugrade. I then installed libstdc++6-4.7-dev but 
this havent helped. When i try to apt-get install libstdc++ i get this 
message:

root@beaglebone:/home/debian/testy# apt-get install libstdc++
Reading package lists... Done
Building dependency tree   
Reading state information... Done
Note, selecting 'libstdc++6-4.3-dev' for regex 'libstdc+'
Note, selecting 'libstdc++6-4.3-doc' for regex 'libstdc+'
Note, selecting 'libstdc++6' for regex 'libstdc+'
Note, selecting 'libstdc++6-4.6-pic' for regex 'libstdc+'
Note, selecting 'libstdc++6-4.0-dbg' for regex 'libstdc+'
Note, selecting 'libstdc++6-4.0-doc' for regex 'libstdc+'
Note, selecting 'libstdc++5-dbg' for regex 'libstdc+'
Note, selecting 'libstdc++5-doc' for regex 'libstdc+'
Note, selecting 'libstdc++5-3.3-dbg' for regex 'libstdc+'
Note, selecting 'libstdc++6-4.7-dbg' for regex 'libstdc+'
Note, selecting 'libstdc++2.8-dev' for regex 'libstdc+'
Note, selecting 'libstdc++6-4.7-dev' for regex 'libstdc+'
Note, selecting 'libstdc++5-3.3-doc' for regex 'libstdc+'
Note, selecting 'libstdc++6-4.7-doc' for regex 'libstdc+'
Note, selecting 'libstdc++3.0-dev' for regex 'libstdc+'
Note, selecting 'libstdc++6-4.4-dbg' for regex 'libstdc+'
Note, selecting 'libstdc++6-4.4-dev' for regex 'libstdc+'
Note, selecting 'libstdc++6-4.4-doc' for regex 'libstdc+'
Note, selecting 'libstdc++6-4.7-pic' for regex 'libstdc+'
Note, selecting 'libstdc++6-4.1-dbg' for regex 'libstdc+'
Note, selecting 'libstdc++6-4.1-doc' for regex 'libstdc+'
Note, selecting 'libstdc++6-dbg' for regex 'libstdc+'
Note, selecting 'libstdc++6-4.4-pic' for regex 'libstdc+'
Note, selecting 'libstdc++6-doc' for regex 'libstdc+'
Note, selecting 'libstdc++2.9-glibc2.1-dev' for regex 'libstdc+'
Note, selecting 'libstdc++2.9-dev' for regex 'libstdc+'
Note, selecting 'libstdc++6-4.6-dbg-armhf' for regex 'libstdc+'
Note, selecting 'libstdc++6-4.5-dbg' for regex 'libstdc+'
Note, selecting 'libstdc++6-4.5-doc' for regex 'libstdc+'
Note, selecting 'libstdc++6-4.2-dbg' for regex 'libstdc+'
Note, selecting 'libstdc++6-4.7-dbg-armhf' for regex 'libstdc+'
Note, selecting 'libstdc++6-4.2-doc' for regex 'libstdc+'
Note, selecting 'libstdc++2.10-dev' for regex 'libstdc+'
Note, selecting 'libstdc++6-4.6-dbg' for regex 'libstdc+'
Note, selecting 'libstdc++6-4.6-dev' for regex 'libstdc+'
Note, selecting 'libstdc++6-4.6-doc' for regex 'libstdc+'
Note, selecting 'libstdc++6-armhf' for regex 'libstdc+'
Note, selecting 'libstdc++-dev' for regex 'libstdc+'
Note, selecting 'libstdc++6-4.3-dbg' for regex 'libstdc+'
Note, selecting 'libstdc++6-4.6-dbg' instead of 'libstdc++6-4.6-dbg-armhf'
Note, selecting 'libstdc++6' instead of 'libstdc++6-armhf'
Note, selecting 'libstdc++6-4.7-dbg' instead of 'libstdc++6-4.7-dbg-armhf'
libstdc++6 is already the newest version.
libstdc++6-4.7-dev is already the newest version.
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 libstdc++6-4.6-dbg : Conflicts: libstdc++6-4.4-dbg but 4.4.7-2 is to be 
installed
 libstdc++6-4.6-doc : Conflicts: libstdc++6-4.4-doc but 4.4.7-2 is to be 
installed
 libstdc++6-4.7-dbg : Conflicts: libstdc++6-4.4-dbg but 4.4.7-2 is to be 
installed
  Conflicts: libstdc++6-4.6-dbg but 4.6.3-14 is to be 
installed
 libstdc++6-4.7-doc : Conflicts: libstdc++6-4.4-doc but 4.4.7-2 is to be 
installed
  Conflicts: libstdc++6-4.6-doc but 4.6.3-14 is to be 
installed
E: Unable to correct problems, you have held broken packages.


Im pretty confused right now. How can i get the proper version running? I 
would really aprichiate any help!

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Re: [beagleboard] poll() on a pin returns constantly even though there is no input

[briselec via BeagleBoard]

On Friday, July 18, 2014 3:56:41 AM UTC+10, rar76 wrote:
>
> Thank you for the information - I noticed others used the mmap instead of 
> sysfs and I wondered how much overhead was in the read/write/open 
> functions.  Can I ask what logic analyzer you're using?  I've been itching 
> to get an oscilloscope, but even the cheapest is a few hundred.
>
> Regards,
> Rene
>
> Have a look at the sigrok  site. It's a 
free signal analysis software suite and there's a page showing all the 
logic analyzer hardware it works with. I bought a $10 Chinese equivalent to 
the Cypress CY7C68013A-56PVXC (FX2LP) board and it works well.  

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Re: [beagleboard] Maximum SD card size for BBB

[John Syn]

From:  William Pretty Security 
Reply-To:  "beagleboard@googlegroups.com" 
Date:  Thursday, July 17, 2014 at 7:58 PM
To:  "beagleboard@googlegroups.com" 
Subject:  RE: [beagleboard] Maximum SD card size for BBB

> Actually John, I¹ve been having that exact problem !
>  
> How does OEwear leveling¹ work ?
> I have been using an external USB key as temp storage.
http://en.wikipedia.org/wiki/Wear_leveling

For development purposes, don¹t use SDCards. Rather use NFS to mount a
rootfs on your desktop.

In the field, use a read only rootfs and create a separate partition for
storage. Flash has to erase a block before writing a byte. If you have a
logging application, create a buffer in ram which is the size of your flash
erase block and write data to buffer and only write the buffer to disk when
the buffer is full. Alternatively, use a power fail detection circuitry and
only write to SDCard on power failure. There are a lot of techniques like
this that prolong the life of flash.

Regards,
John
>  
> Bill
>  
> 
> http://www.packtpub.com/building-a-home-security-system-with-beaglebone/book
>  
> 
> From: beagleboard@googlegroups.com [mailto:beagleboard@googlegroups.com] On
> Behalf Of John Syn
> Sent: Thursday, July 17, 2014 10:32 PM
> To: beagleboard@googlegroups.com
> Subject: Re: [beagleboard] Maximum SD card size for BBB
>  
> 
>  
> 
> From: William Pretty Security 
> Reply-To: "beagleboard@googlegroups.com" 
> Date: Thursday, July 17, 2014 at 6:51 PM
> To: "beagleboard@googlegroups.com" 
> Subject: RE: [beagleboard] Maximum SD card size for BBB
> 
>  
>> 
>> Quite right, but given that Ubuntu with GUI is about 3GB, isn¹t the other 13
>> kind of a waste ??
> 
> Flash has a finite number of writes so with wear leveling, you want to have a
> much free space as possible to prevent flash failure. If it is the same price,
> always get the bigger one ;-)
> 
>  
> 
> Regards,
> 
> John
>> 
>>  
>> 
>> http://www.packtpub.com/building-a-home-security-system-with-beaglebone/book
>>  
>> 
>> From: beagleboard@googlegroups.com [mailto:beagleboard@googlegroups.com] On
>> Behalf Of John Syn
>> Sent: Thursday, July 17, 2014 8:32 PM
>> To: beagleboard@googlegroups.com
>> Subject: Re: [beagleboard] Maximum SD card size for BBB
>>  
>> 
>>  
>> 
>> From: William Pretty Security 
>> Reply-To: "beagleboard@googlegroups.com" 
>> Date: Thursday, July 17, 2014 at 4:14 PM
>> To: "beagleboard@googlegroups.com" 
>> Subject: RE: [beagleboard] Maximum SD card size for BBB
>> 
>>  
>>> 
>>> You probably want about 8GB class 10 for sure.
>>> I don¹t know if there is a maximum size of uSD card.
>> 
>> 16GB is about the same price as 8GB. At Amazon, 16GB class 10 is about $8.
>>> 
>>>  
>>> The class 4 uSD cards aren¹t very reliable.
>>>  
>>> http://www.packtpub.com/building-a-home-security-system-with-beaglebone/book
>>>  
>>> 
>>> From: beagleboard@googlegroups.com [mailto:beagleboard@googlegroups.com]
>>> Sent: Thursday, July 17, 2014 6:05 PM
>>> To: beagleboard@googlegroups.com
>>> Subject: [beagleboard] Maximum SD card size for BBB
>>>  
>>> 
>>> Greetings everyone,
>>> 
>>> What is the maximum size SD or SDHC flash memory card that the "BeagleBone
>>> Black" will support ?
>>> 
>>> Also, what is the recommended speed class (e.g. Class 4, Class 10, etc.) ?
>>> 
>>> Thank you in advance for your help :-)
>>> 
>>> Jonmar
>>> -- 
>>> 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+unsubscr...@googlegroups.com.
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>>> 
>>> 
>>> 
>>> 
>>> No virus found in this message.
>>> Checked by AVG - www.avg.com 
>>> Version: 2014.0.4716 / Virus Database: 3986/7869 - Release Date: 07/17/14
>>> -- 
>>> For more options, visit http://beagleboard.org/discuss
>>> --- 
>>> You received this message because you are subscribed to the Google Groups
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>>> To unsubscribe from this group and stop receiving emails from it, send an
>>> email to beagleboard+unsubscr...@googlegroups.com.
>>> For more options, visit https://groups.google.com/d/optout.
>> 
>> 
>> No virus found in this message.
>> Checked by AVG - www.avg.com 
>> Version: 2014.0.4716 / Virus Database: 3986/7863 - Release Date: 07/16/14
>> No virus found in this message.
>> Checked by AVG - www.avg.com 
>> Version: 2014.0.4716 / Virus Database: 3986/7871 - Release Date: 07/17/14
>> -- 
>> For more options, visit http://beagleboard.org/discuss
>> --- 
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RE: [beagleboard] Maximum SD card size for BBB

[William Pretty Security]

Actually John, I've been having that exact problem !

 

How does 'wear leveling' work ?

I have been using an external USB key as temp storage.

 

Bill

 

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

 

From: beagleboard@googlegroups.com [mailto:beagleboard@googlegroups.com] On
Behalf Of John Syn
Sent: Thursday, July 17, 2014 10:32 PM
To: beagleboard@googlegroups.com
Subject: Re: [beagleboard] Maximum SD card size for BBB

 

 

From: William Pretty Security 
Reply-To: "beagleboard@googlegroups.com" 
Date: Thursday, July 17, 2014 at 6:51 PM
To: "beagleboard@googlegroups.com" 
Subject: RE: [beagleboard] Maximum SD card size for BBB

 

Quite right, but given that Ubuntu with GUI is about 3GB, isn't the other 13
kind of a waste ??

Flash has a finite number of writes so with wear leveling, you want to have
a much free space as possible to prevent flash failure. If it is the same
price, always get the bigger one ;-)

 

Regards,

John

 

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

 

From: beagleboard@googlegroups.com [mailto:beagleboard@googlegroups.com] On
Behalf Of John Syn
Sent: Thursday, July 17, 2014 8:32 PM
To: beagleboard@googlegroups.com
Subject: Re: [beagleboard] Maximum SD card size for BBB

 

 

From: William Pretty Security 
Reply-To: "beagleboard@googlegroups.com" 
Date: Thursday, July 17, 2014 at 4:14 PM
To: "beagleboard@googlegroups.com" 
Subject: RE: [beagleboard] Maximum SD card size for BBB

 

You probably want about 8GB class 10 for sure. 

I don't know if there is a maximum size of uSD card.

16GB is about the same price as 8GB. At Amazon, 16GB class 10 is about $8.

 

The class 4 uSD cards aren't very reliable.

 

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

 

From: beagleboard@googlegroups.com [mailto:beagleboard@googlegroups.com] 
Sent: Thursday, July 17, 2014 6:05 PM
To: beagleboard@googlegroups.com
Subject: [beagleboard] Maximum SD card size for BBB

 

Greetings everyone,

What is the maximum size SD or SDHC flash memory card that the "BeagleBone
Black" will support ?

Also, what is the recommended speed class (e.g. Class 4, Class 10, etc.) ?

Thank you in advance for your help :-)

Jonmar

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No virus found in this message.
Checked by AVG - www.avg.com
Version: 2014.0.4716 / Virus Database: 3986/7869 - Release Date: 07/17/14

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  _  


No virus found in this message.
Checked by AVG - www.avg.com
Version: 2014.0.4716 / Virus Database: 3986/7863 - Release Date: 07/16/14

No virus found in this message.
Checked by AVG - www.avg.com
Version: 2014.0.4716 / Virus Database: 3986/7871 - Release Date: 07/17/14

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  _  

No virus found in this message.
Checked by AVG - www.avg.com
Version: 2014.0.4716 / Virus Database: 3986/7863 - Release Date: 07/16/14

No virus found in this message.
Checked by AVG - www.avg.com
Version: 2014.0.4716 / Virus Database: 3986/7871 - Release Date: 07/17/14

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For more options, v

Re: [beagleboard] Maximum SD card size for BBB

[John Syn]

From:  William Pretty Security 
Reply-To:  "beagleboard@googlegroups.com" 
Date:  Thursday, July 17, 2014 at 6:51 PM
To:  "beagleboard@googlegroups.com" 
Subject:  RE: [beagleboard] Maximum SD card size for BBB

> Quite right, but given that Ubuntu with GUI is about 3GB, isn¹t the other 13
> kind of a waste ??
Flash has a finite number of writes so with wear leveling, you want to have
a much free space as possible to prevent flash failure. If it is the same
price, always get the bigger one ;-)

Regards,
John
>  
> 
> http://www.packtpub.com/building-a-home-security-system-with-beaglebone/book
>  
> 
> From: beagleboard@googlegroups.com [mailto:beagleboard@googlegroups.com] On
> Behalf Of John Syn
> Sent: Thursday, July 17, 2014 8:32 PM
> To: beagleboard@googlegroups.com
> Subject: Re: [beagleboard] Maximum SD card size for BBB
>  
> 
>  
> 
> From: William Pretty Security 
> Reply-To: "beagleboard@googlegroups.com" 
> Date: Thursday, July 17, 2014 at 4:14 PM
> To: "beagleboard@googlegroups.com" 
> Subject: RE: [beagleboard] Maximum SD card size for BBB
> 
>  
>> 
>> You probably want about 8GB class 10 for sure.
>> I don¹t know if there is a maximum size of uSD card.
> 
> 16GB is about the same price as 8GB. At Amazon, 16GB class 10 is about $8.
>> 
>>  
>> The class 4 uSD cards aren¹t very reliable.
>>  
>> http://www.packtpub.com/building-a-home-security-system-with-beaglebone/book
>>  
>> 
>> From: beagleboard@googlegroups.com [mailto:beagleboard@googlegroups.com]
>> Sent: Thursday, July 17, 2014 6:05 PM
>> To: beagleboard@googlegroups.com
>> Subject: [beagleboard] Maximum SD card size for BBB
>>  
>> 
>> Greetings everyone,
>> 
>> What is the maximum size SD or SDHC flash memory card that the "BeagleBone
>> Black" will support ?
>> 
>> Also, what is the recommended speed class (e.g. Class 4, Class 10, etc.) ?
>> 
>> Thank you in advance for your help :-)
>> 
>> Jonmar
>> -- 
>> 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+unsubscr...@googlegroups.com.
>> For more options, visit https://groups.google.com/d/optout.
>> 
>> 
>> 
>> No virus found in this message.
>> Checked by AVG - www.avg.com 
>> Version: 2014.0.4716 / Virus Database: 3986/7869 - Release Date: 07/17/14
>> -- 
>> 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+unsubscr...@googlegroups.com.
>> For more options, visit https://groups.google.com/d/optout.
> 
> 
> No virus found in this message.
> Checked by AVG - www.avg.com 
> Version: 2014.0.4716 / Virus Database: 3986/7863 - Release Date: 07/16/14
> No virus found in this message.
> Checked by AVG - www.avg.com 
> Version: 2014.0.4716 / Virus Database: 3986/7871 - Release Date: 07/17/14
> -- 
> 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+unsubscr...@googlegroups.com.
> For more options, visit https://groups.google.com/d/optout.
> -- 
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> --- 
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RE: [beagleboard] Maximum SD card size for BBB

[William Pretty Security]

Quite right, but given that Ubuntu with GUI is about 3GB, isn't the other 13
kind of a waste ??

 

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

 

From: beagleboard@googlegroups.com [mailto:beagleboard@googlegroups.com] On
Behalf Of John Syn
Sent: Thursday, July 17, 2014 8:32 PM
To: beagleboard@googlegroups.com
Subject: Re: [beagleboard] Maximum SD card size for BBB

 

 

From: William Pretty Security 
Reply-To: "beagleboard@googlegroups.com" 
Date: Thursday, July 17, 2014 at 4:14 PM
To: "beagleboard@googlegroups.com" 
Subject: RE: [beagleboard] Maximum SD card size for BBB

 

You probably want about 8GB class 10 for sure. 

I don't know if there is a maximum size of uSD card.

16GB is about the same price as 8GB. At Amazon, 16GB class 10 is about $8.

 

The class 4 uSD cards aren't very reliable.

 

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

 

From: beagleboard@googlegroups.com [mailto:beagleboard@googlegroups.com] 
Sent: Thursday, July 17, 2014 6:05 PM
To: beagleboard@googlegroups.com
Subject: [beagleboard] Maximum SD card size for BBB

 

Greetings everyone,

What is the maximum size SD or SDHC flash memory card that the "BeagleBone
Black" will support ?

Also, what is the recommended speed class (e.g. Class 4, Class 10, etc.) ?

Thank you in advance for your help :-)

Jonmar

-- 
For more options, visit http://beagleboard.org/discuss
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No virus found in this message.
Checked by AVG - www.avg.com
Version: 2014.0.4716 / Virus Database: 3986/7869 - Release Date: 07/17/14

-- 
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  _  

No virus found in this message.
Checked by AVG - www.avg.com
Version: 2014.0.4716 / Virus Database: 3986/7863 - Release Date: 07/16/14

No virus found in this message.
Checked by AVG - www.avg.com
Version: 2014.0.4716 / Virus Database: 3986/7871 - Release Date: 07/17/14

-- 
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Re: [beagleboard] Maximum SD card size for BBB

[John Syn]

From:  William Pretty Security 
Reply-To:  "beagleboard@googlegroups.com" 
Date:  Thursday, July 17, 2014 at 4:14 PM
To:  "beagleboard@googlegroups.com" 
Subject:  RE: [beagleboard] Maximum SD card size for BBB

> You probably want about 8GB class 10 for sure.
> I don¹t know if there is a maximum size of uSD card.
16GB is about the same price as 8GB. At Amazon, 16GB class 10 is about $8.
>  
> The class 4 uSD cards aren¹t very reliable.
>  
> http://www.packtpub.com/building-a-home-security-system-with-beaglebone/book
>  
> 
> From: beagleboard@googlegroups.com [mailto:beagleboard@googlegroups.com]
> Sent: Thursday, July 17, 2014 6:05 PM
> To: beagleboard@googlegroups.com
> Subject: [beagleboard] Maximum SD card size for BBB
>  
> 
> Greetings everyone,
> 
> What is the maximum size SD or SDHC flash memory card that the "BeagleBone
> Black" will support ?
> 
> Also, what is the recommended speed class (e.g. Class 4, Class 10, etc.) ?
> 
> Thank you in advance for your help :-)
> 
> Jonmar
> -- 
> For more options, visit http://beagleboard.org/discuss
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> 
> 
> No virus found in this message.
> Checked by AVG - www.avg.com 
> Version: 2014.0.4716 / Virus Database: 3986/7869 - Release Date: 07/17/14
> -- 
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RE: [beagleboard] Maximum SD card size for BBB

[William Pretty Security]

You probably want about 8GB class 10 for sure. 

I don’t know if there is a maximum size of uSD card.

 

The class 4 uSD cards aren’t very reliable.

 

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

 

From: beagleboard@googlegroups.com [mailto:beagleboard@googlegroups.com] 
Sent: Thursday, July 17, 2014 6:05 PM
To: beagleboard@googlegroups.com
Subject: [beagleboard] Maximum SD card size for BBB

 

Greetings everyone,

What is the maximum size SD or SDHC flash memory card that the "BeagleBone 
Black" will support ?

Also, what is the recommended speed class (e.g. Class 4, Class 10, etc.) ?

Thank you in advance for your help :-)

Jonmar

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No virus found in this message.
Checked by AVG - www.avg.com
Version: 2014.0.4716 / Virus Database: 3986/7869 - Release Date: 07/17/14

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[beagleboard] Re: C Code to send UDP packets using Ethernet

[Brandon I]

There's nothing Beaglebone about this question, really. Just google "send 
udp packets c posix".


On Thursday, July 17, 2014 3:46:18 AM UTC-7, msc.a.f...@googlemail.com 
wrote:
>
>
> Hi everyone,
>
> I am new with the Beaglebone black and I would like to make a little 
> program in C to send UDP packets using Ethernet. Can someone please tell me 
> where I can find some code to do this or to point in the right direction to 
> do this?
>
> Thank you for the help
>

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Re: [beagleboard] inaccuracy issue of clock_nanosleep() with Debian

[John Syn]

From:  
Reply-To:  "beagleboard@googlegroups.com" 
Date:  Thursday, July 17, 2014 at 9:10 AM
To:  "beagleboard@googlegroups.com" 
Subject:  Re: [beagleboard] inaccuracy issue of clock_nanosleep() with
Debian

> Hello, John,
> Excuse me, may I ask that PRU can be used beyond linux system clock?
> Because I need to synchronize my BBB with ourter PTP(precision time protocol)
> message , if PRU using its clock, then the BBB will become asynchronized
> device..  
You might find this helpful:

http://processors.wiki.ti.com/index.php/TI81XX_PSP_Ethernet_Switch_User_Guid
e#IEEE_1588.2F802.1AS_PTP_Support

Regards,
John
> 
> 
> Thanks.
> 
> 
> 
> 
> 
> John Stampfl於 2014年7月17日星期四UTC+8下午11時02分32秒寫道：
>> Try the "cycle counter" in the pru.
>> 
>> look in the pru section of the forum
>> 
>> 
>> On Thu, Jul 17, 2014 at 10:35 PM,   > wrote:
>>> I use BeagleboneBlack with Debian, kernel v3.15, and I want to implement an
>>> accurate timer on my BBB.
>>> I use clock_nanosleep() to wait for 1 second. However, it always turns to be
>>> 1 second and 100~120 microsecond delay. (I measured clock_nanosleep()
>>> between clock_gettime() and with oscilloscope.)
>>> 
>>> I also run linuxPTP (a software that adjusts system clock, CLOCK_REALTIME,
>>> to synchronize linux system with PTP.) to synchronize my BBB.
>>> 
>>> I have no idea how to improve it, should I change linux to real-time linux?
>>> (Xenomai or RobertCNelson's patch for linux)
>>> or is there another way (such as software, codes, etc) to get more accuracy
>>> timer? (under 1us delay.)
>>> 
>>> Thanks!
>>> 
>>> -- 
>>> For more options, visit http://beagleboard.org/discuss
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>> 
>> 
>> 
>> -- 
>> John Stampfl
> 
> -- 
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[beagleboard] Flash custom distro into emmc

[Jerônimo Lopes]

Hi, I've build a custom distro using buildroot, and got it running from the
microSD in the BBB. Now I want to flash that distro into the onboard eMMC,
could anyone tell me how can I do that?

Regards,

Jerônimo Lopes

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Re: [beagleboard] Maximum SD card size for BBB

[Robert Nelson]

On Thu, Jul 17, 2014 at 5:05 PM, 'Jonmar' via BeagleBoard
 wrote:
> Greetings everyone,
>
> What is the maximum size SD or SDHC flash memory card that the "BeagleBone
> Black" will support ?
>
> Also, what is the recommended speed class (e.g. Class 4, Class 10, etc.) ?

>From the AM335x manual:

MMC, SD, SDIO 2.0 port:

Complies with MMC4.3, SD, SDIO 2.0 Specifications

Regards,

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

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[beagleboard] PyBBIO 0.9

[Jason Kridner]

Pulled this off of Alex's blog at
http://www.alexanderhiam.com/uncategorized/pybbio-update-version-0-9/:

With the help of Rekha Seethamraju , a GSoC
2014

 student, PyBBIO has gained a bunch of cool new features.
SPI

PyBBIO finally has SPI support! It provides an Arduino-style API with some
extra features, letting you use both the SPI0 and SPI1 modules. See the SPI
documentation for more
info.
ADT7310

There is a new library for the ADT7310

SPI
temperature sensor, including interrupt based support for its programmable
over-/under-temperature thresholds. More info on the wiki page
.
Rotary Encoder

A driver for the AM335x’s built-in eQEP modules was recently added to the
official BeagleBone Debian images, and PyBBIO now has a library that uses
it to get input from up to 3 rotary encoders. See theRotaryEncoder
documentation .
Phant Support

Just recently, SparkFun announced their IoT data logging service phant at
data.sparkfun.com. PyBBIO now includes a PhantStream library, which is able
to post data to and pull data from phant streams. Documentation here
.
Optimization

One of the first improvements Rekha made to PyBBIO was to move all file I/O
based interfacing with kernel drivers to C extension. That means there is
less latency when communicating with kernel drivers, which is a core part
of all the IO functionality.
License Change

As of version 0.9, PyBBIO has dropped the Apache 2.0 license and is now
released under the MIT license.
Bug fixes

Among a host of minor bugs getting squashed, we found and fixed an issue
where attachInterupt() was always causing an immediate false interrupt the
first time it was called in a program.
Installation

PyBBIO 0.9 is now officially released
 on the pypi.python.org
repository, meaning it can now be installed with pip! See the install
instructions
 for more
info.

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[beagleboard] Maximum SD card size for BBB

['Jonmar' via BeagleBoard]

Greetings everyone,

What is the maximum size SD or SDHC flash memory card that the "BeagleBone 
Black" will support ?

Also, what is the recommended speed class (e.g. Class 4, Class 10, etc.) ?

Thank you in advance for your help :-)

Jonmar

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Re: [beagleboard] SPI clock P9_22

[Guy Grotke]

The SPI module gets a clock of 48 MHz from the clock tree.  You might be 
able to work with that frequency, but I know you can get it to work at 
48/3 (16 MHz), because I do every day.  I have read somewhere 
experimenters could not get it to work at 48/2 (24 MHz). I set my speed 
on the fly using an ioctl call in my c program:


ret = ioctl(fd,SPI_IOC_RD_MAX_SPEED_HZ, &speed);
if (ret== -1)
pabort("can't get max speedhz");


On 7/16/2014 7:45 AM, Ardit Cuka wrote:
Hi, I am trying to find out what is the maximum frequencyon P9_22 
which is the SPI clock on BBB. AND HOW DO I CHANGE THIS FREQUENCY.

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[beagleboard] Re: Compatible webcams beaglebone black

[dsmaccy]

the logitech 
HD Pro Webcam C920 


works

It's $100 though
On Thursday, April 10, 2014 11:31:03 AM UTC-7, Dani Ruiz wrote:
>
> Hi everyone,
>
> Anyone know if there is a list of the compatible webcam for the beaglebone 
> black?
>
> Thanks.
>

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Re: [beagleboard] Beaglebone SPI

[Guy Grotke]

It's not a quirk of the driver, that you have to set SPI_CLK as an input 
even when the Sitara is master:  It's the hardware.  The SPI puts the 
SPI_CLK out for its MOSI data, but it needs the SPI_CLK to clock in its 
MISO data from the slave.  The bit that you are calling "input" does not 
make the pin input:  It activates the rx hardware. It can still be 
driven as an output with the RX_ACTIVE bit turned on.  You need to do 
that even when you run the SPI hardware directly without the Linux driver.


Getting the SPI Master running is very easy.  You do need to get the 
pinmux set so the right pins are available.  Then:


#include 

// open it:
fd = open(device, O_RDWR);
if (fd < 0)
pabort("can't open SPI device");

//Set up the mode, speed, bits/word, etc. using ioctl calls:
// spi mode
ret = ioctl(fd,SPI_IOC_WR_MODE, &mode);
if (ret== -1)
pabort("can't set spi mode");

Then you can use a struct spi_ioc_transfer and ioctl() calls to do reads 
or write.


On 7/17/2014 6:35 AM, Jack Mitchell wrote:

On 16/07/14 17:08, geetha wrote:

I am new to Beaglebone & not too familiar with Linux.

My application requires data to be acquired from a device on SPI &
transmit it on LAN.

I am using the preloaded Angstrom OS.

I have setup the environment for development by precisely following

http://jkuhlm.bplaced.net/hellobone/

With this platform, I am able to develop application for LAN transmission.

For SPI interface I have followed

http://elinux.org/BeagleBone_Black_Enable_SPIDEV

I have to use SPI0.  I am able to reach properly upto the step of
compiling & running the spidev_test code.  Following are my questions

  1.Does the preloaded Angstrom has SPI device built in the
 kernel or should the kernel be rebuilt by including the spidev.c?

Yes, SPI is included in the Angstrom kernel.


  2. Will the gcc libraries compile the SPIdev_test code?  I
 am getting ‘undefined error for SPI_TX_QUAD’ and many more which I
 am finding defined in spi.h which is not in gcc include.  Can I
 simply copy spi.h file into the include directory and compile?

Where did you get spidev.c from? You must use the same source as the
kernel; if you use a newer source it may not compile with the older
version of the kernel you are using.


  3.With reference to the below segment in the .dts file,
 sclk is mentioned as input.  However, I would like BBB to be master
 to generate clock for the external device.  In such case, should the
 change the value to 0x10?

No, this a "quirk" with the spi driver, the clock is set as INPUT but it
will also OUTPUT on the pin.


4.  fragment@0 {

5.  target = <&am33xx_pinmux>;

6.  __overlay__ {

7.  spi0_pins_s0: spi0_pins_s0 {

8.  pinctrl-single,pins = <

9.0x150 0x30  /* spi0_sclk, INPUT_PULLUP | MODE0 */

10.0x154 0x30  /* spi0_d0, INPUT_PULLUP | MODE0 */

11.0x158 0x10  /* spi0_d1, OUTPUT_PULLUP | MODE0 */

12.0x15c 0x10  /* spi0_cs0, OUTPUT_PULLUP | MODE0 */

13.  >;

14.  };

15.  };

16.  };

4.  The pin mapping file shows that the SPI pins are mapped to 84,…..
How to verify that it has been correctly mapped to the processor pin number.

This data can be found in the am335x TRM; you have to find the pinctrl
register in the TRM and then match the offset 0x150 to the table and
double check that it is SPI.


  Request help for these trivial questions.

  Thanks



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Re: [beagleboard] Measuring a BBB's own supply voltage

[John Syn]

From:  
Reply-To:  "beagleboard@googlegroups.com" 
Date:  Wednesday, July 16, 2014 at 3:39 PM
To:  "beagleboard@googlegroups.com" 
Subject:  [beagleboard] Measuring a BBB's own supply voltage

> Hi,
> 
> Is there a way to measure a BBB's supply voltage from within the Linux OS?   I
> was thinking about connecting one of the VDD_3V3 pins to a analog GPIO input
> and measuring that but I'm not sure if that's a good idea or even possible.
This is possible as long as you use an resistor divider because the maximum
analog voltage must not exceed 1.8 volts.

Regards,
John
> 
> Thanks,
> 
> Chris
> -- 
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Re: [beagleboard] debian 2014-07-16

[John Syn]

On 7/17/14, 8:14 AM, "Robert Nelson"  wrote:

>On Wed, Jul 16, 2014 at 7:22 PM, Robert Nelson 
>wrote:
>> On Wed, Jul 16, 2014 at 5:45 PM, John Syn  wrote:
>>> I've attached my uEnv.txt file I use for mounting rootfs over NFS. Not
>>> sure how to work around using two kernels, one built with initrd and
>>> another without initrd support.
>
>okay, same kernel (v3.15.5-bone5) supports both initrd boot and nfs
>boot.  Now i'm confused, why was this broken in prior kernels?
I¹m also confused. I recall working on TFTP boot/NFS rootfs early in the
v3.8 kernel and I had to remove both the initrd reference in bootz and
also compile the kernel without initrd support. If I didn¹t do this, the
kernel boot would hang. I have just rebuilt u-boot with your latest patch
and I used your V3.15.5-bone5 kernel together with your proposed uEnv.txt
and it works perfectly. This is very nice. Thank you for making this so
much easier. Excellent work.

One change I¹m going to make is change the uboot mount to my tftp folder
so when I update the kernel, it updates the kernel/dtbs on my tftp folder
and not on the MMC BOOT partition.

Regards,
John
>
>nfsboot:
>http://pastebin.com/sXFSu7k3
>
>debian@beaglebone:~$ cat disk/uEnv.txt
>client_ip=192.168.0.118
>server_ip=192.168.0.10
>gw_ip=192.168.0.1
>root_dir=/opt/wheezy
>
>mmcboot:
>http://pastebin.com/EKDpTvYc
>
>Regards,
>
>-- 
>Robert Nelson
>http://www.rcn-ee.com/
>
>-- 
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Re: [beagleboard] Using USB WIfi adapter on Debian 16-July-2014 image

[Mark A. Yoder]

Well, that was the image I was using, so I reflashed it and now it working 
(mostly).  I tried the 10-July image and it doesn't work.

The mostly part is the campus uses enterprise authentication, so I'm still 
not able to connect, but at least I can see the access points now.

I'm heading home where the wifi is much simpler.  I hope it works there.

--Mark

On Thursday, July 17, 2014 2:12:06 PM UTC-4, RobertCNelson wrote:
>
> On Thu, Jul 17, 2014 at 1:09 PM, Robert Nelson  > wrote: 
> > On Thu, Jul 17, 2014 at 12:04 PM, Mark A. Yoder  > wrote: 
> >> # lsusb 
> >> Bus 001 Device 002: ID 0cf3:9271 Atheros Communications, Inc. AR9271 
> 802.11n 
> >> Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub 
> >> Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub 
> >> 
> >> http://paste.debian.net/110285/ 
> >> 
> >> I switched to the 10-July-2014 image an am having the same results. 
> > 
> > Ah.. missing firmware: 
> > 
> > [   18.225450] usb 1-1: ath9k_htc: Firmware htc_9271.fw requested 
> > [   18.250536] usbcore: registered new interface driver ath9k_htc 
> > [   18.766269] usb 1-1: ath9k_htc: Failed to get firmware htc_9271.fw 
> > [   18.778499] usb 1-1: unregistering interface 1-1:1.0 
> > [   18.779261] usb 1-1: ath9k_htc: USB layer deinitialized 
> > [   18.779401] usb 1-1: usb_disable_device nuking non-ep0 URBs 
> > 
> > 
> https://git.kernel.org/cgit/linux/kernel/git/firmware/linux-firmware.git/tree/htc_9271.fw
>  
>
> Hum, it should have been installed. 
>
>
> https://github.com/RobertCNelson/omap-image-builder/blob/master/scripts/chroot.sh#L754
>  
>
> The "lxde" image here should work.. 
> http://elinux.org/Beagleboard:BeagleBoneBlack_Debian#2014-07-16 
>
> Regards, 
>
> -- 
> Robert Nelson 
> http://www.rcn-ee.com/ 
>

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Re: [beagleboard] miniDisplay Cape - Looking for sample code

[David Anders]

Mark,

i wont have time to do any testing until late next week, but iirc, we had 
been able to write an entire frame at once...

Dave


On Thursday, July 17, 2014 2:07:03 PM UTC-5, Mark A. Yoder wrote:
>
> Hmmm I tried sending 1024 and the display didn't show anything.  Maybe 
> you can only send one line at a time.
>
> --Mark
>
> On Thursday, July 17, 2014 3:02:38 PM UTC-4, David Anders wrote:
>>
>> Mark,
>>
>>
>> On Wednesday, July 16, 2014 11:23:59 AM UTC-5, Mark A. Yoder wrote:
>>>
>>>
>>>
>>> *Why do you only write 768 bytes at a time to the SPI?*
>>>
>>>
>>>
>> no specific reason other than that is the size of one line on the 
>> display...
>>
>> Dave
>>  
>>
>

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Re: [beagleboard] no nand devices

[Maxim Podbereznyy]

what board do you use?


2014-07-17 23:48 GMT+04:00 giafar :

> Hi there,
> Yesterday i received the  on debug UART and I have uploaded the
> u-boot-spl.bin and u-image.bin by UART Xterm and YTerm as per
> http://processors.wiki.ti.com/index.php/AM335x_U-Boot_User's_Guide .
> The U-boot menu comes up but if I try to flash MLO and u-boot.img to nand
> I receive "no nand device". Where is the NAND ??
>
> Here the boot log
>
> U-Boot 2014.07-rc2-2-gf23adc9-dirty (May 25 2014 - 21:44:14)
> I2C:   ready
> DRAM:  512 MiB
> NAND:  0 MiB
> MMC:   OMAP SD/MMC: 0, OMAP SD/MMC: 1
> *** Warning - readenv() failed, using default environment
> Net:not set. Validating first E-fuse MAC
> cpsw, usb_ether
> Hit any key to stop autoboot:  0
> U-Boot# nand device
> *no devices available*
>
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Re: [beagleboard] How to Connect another hardware AVR(Atmega128) or ARM with beagle board xm.

[Maxim Podbereznyy]

BB-XM has 1.8V voltage level for IO, but Atmega can support either 3.3V or
5V. You can get a USB-Uart cable and connect a USB part to XM, UART part to
Atmega. Enjoy


2014-07-17 23:17 GMT+04:00 :

> Hello Friends,
> I Completed booting armstrong image into beagleboard-xm.
> and then i want to connect this kit to another hard ware for accessing
> that hardware pherirals using UART or other if it .
> how it will do.
>
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[beagleboard] no nand devices

[giafar]

Hi there,
Yesterday i received the  on debug UART and I have uploaded the 
u-boot-spl.bin and u-image.bin by UART Xterm and YTerm as per 
http://processors.wiki.ti.com/index.php/AM335x_U-Boot_User's_Guide .
The U-boot menu comes up but if I try to flash MLO and u-boot.img to nand I 
receive "no nand device". Where is the NAND ??
 
Here the boot log
 
U-Boot 2014.07-rc2-2-gf23adc9-dirty (May 25 2014 - 21:44:14)
I2C:   ready
DRAM:  512 MiB
NAND:  0 MiB
MMC:   OMAP SD/MMC: 0, OMAP SD/MMC: 1
*** Warning - readenv() failed, using default environment
Net:not set. Validating first E-fuse MAC
cpsw, usb_ether
Hit any key to stop autoboot:  0
U-Boot# nand device
*no devices available*

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[beagleboard] How to Connect another hardware AVR(Atmega128) or ARM with beagle board xm.

[askh369]

Hello Friends,
I Completed booting armstrong image into beagleboard-xm.
and then i want to connect this kit to another hard ware for accessing that 
hardware pherirals using UART or other if it .
how it will do.

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[beagleboard] Re: Cross-Compiling Qt5 on Beaglebone Black with OpenGL

[ashwin . space2000]

Jay, 

Try using just -opengl instead of -opengl es2. I did it and configure output 
had 'OPENGL Desktop'. I'm guessing full GL was selected instead of ES subset. 
My /use/include had a GL/ directory but no GLES/ or GLES2/.

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[beagleboard] Re: I2C programming in Accelerometer

[rod08018]

Im here with the same problem did you ever find a solution?

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[beagleboard] Re: Cross-Compiling Qt5 on Beaglebone Black with OpenGL

[ashwin . space2000]

Jay,

I used instructions in 
http://elinux.org/BeagleBoardDebian#SGX_BeagleBone.2FBeagleBone_Black to build 
kernel and sgx drivers and installed them to my BBB. The demo example mentioned 
in link ran fine. 

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Re: [beagleboard] miniDisplay Cape - Looking for sample code

[Mark A. Yoder]

Hmmm I tried sending 1024 and the display didn't show anything.  Maybe 
you can only send one line at a time.

--Mark

On Thursday, July 17, 2014 3:02:38 PM UTC-4, David Anders wrote:
>
> Mark,
>
>
> On Wednesday, July 16, 2014 11:23:59 AM UTC-5, Mark A. Yoder wrote:
>>
>>
>>
>> *Why do you only write 768 bytes at a time to the SPI?*
>>
>>
>>
> no specific reason other than that is the size of one line on the 
> display...
>
> Dave
>  
>

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Re: [beagleboard] miniDisplay Cape - Looking for sample code

[David Anders]

Mark,


On Wednesday, July 16, 2014 11:23:59 AM UTC-5, Mark A. Yoder wrote:
>
>
>
> *Why do you only write 768 bytes at a time to the SPI?*
>
>
>
no specific reason other than that is the size of one line on the display...

Dave
 

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Re: [beagleboard] miniDisplay Cape - Looking for sample code

[David Anders]

Mark,

ahh right that was already fixed, i am not sure how i uploaded an older 
version where it wasn't fixed...

i'll update the tarball and add links to your code as well...

Dave

On Wednesday, July 16, 2014 11:23:59 AM UTC-5, Mark A. Yoder wrote:
>
> Dave:
>   I found the color problem.  There were some incorrect indices on pixel[]. 
>  I've alse changed the code a bit so Boris will render much faster.  Rather 
> than sending one RGB pixel at a time I'm seen 768/3.  I got the idea from 
> fillScreenBards(). Here's my displayimage(). 
>
> void displayimage(){
> char pixel[5], *data = header_data;
> int i = width * height;
> Transfer tbuffer[128*128*3+1];
> void *buff_ptr = tbuffer;
>  LCDSendCommand(1, 0x2C);
> int j = 0;
> while(i-- > 0) {
> HEADER_PIXEL(data,pixel);
>  tbuffer[j+0].data=(*pixel[2]* & 0xff);
> tbuffer[j+0].type=1;
>  tbuffer[j+1].data=(*pixel[1]* & 0xff);
> tbuffer[j+1].type=1;
>  tbuffer[j+2].data=(*pixel[0]* & 0xff);
> tbuffer[j+2].type=1;
> j +=3;
> }
> // SPIWriteChunk(buff_ptr, 128*128*3);
> for(i=0;i<128;i++){
> SPIWriteChunk(buff_ptr, 768);
> buff_ptr += 768;
> }
> }
>
> *Why do you only write 768 bytes at a time to the SPI?*
>
> With only small changes the code here[1] drives the miniDisplay and sends 
> a bmp file to it.
>
> --Mark
>
> [1] https://github.com/jeidon/cfa_bmp_loader.git 
>
> On Wednesday, July 16, 2014 12:00:03 PM UTC-4, David Anders wrote:
>>
>> Mark,
>>
>>
>> On Wednesday, July 16, 2014 8:42:31 AM UTC-5, Mark A. Yoder wrote:
>>>
>>> It works!  Thanks.  Though the background on Boris is greenish.
>>>
>>>
>> that is odd! we've not had any reports of that issue during our testing. 
>> it is possible that the SPI timing could be off giving you a slightly 
>> shifted color spectrum, or possible the display is damaged. please email 
>> sup...@boardzoo.com and we'll get another minidisplay cape out to you to 
>> test...
>>
>>  
>>
>>> There is a typo on the wiki.  The tar command produces a directory 
>>> called Minidisplay-example with a capital M.
>>>
>>>
>> sorry about that, the elinux.org wiki automatically makes the first 
>> letter of file uploads a capital. the original file was not capital
>>
>>  
>>
>>> I also had to run echo -10 > /sys/devices/bone_capemgr.*/slots 
>>> before echo BB-SPIDEV0 > /sys/devices/bone_capemgr.*/slots to disable a pwm 
>>> that was in conflict.
>>>
>>>
>> had you previously loaded another device tree entry with PWM?
>>
>>  
>>
>>> Thanks again...  
>>>
>>>
>> i did not get a chance yesterday to document it, but the header file for 
>> the boris image was generated using GIMP's export feature. it would be easy 
>> enough to add a parser to decode bmp or png files...
>>
>> Dave
>>
>>

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[beagleboard] Re: How do I change the SPI clock (P9_22) speed on BBB? And what is the maximum speed?

[Ardit Cuka]

I don't need to change to clock speed when the system its running. I want 
to change it before and then run the system.
Using somthing like this:
import Adafruit_BBIO.GPIO as GPIO
import time
GPIO.setup("P9_22", GPIO.out)
GPIO.setclock("P9_22", 64000)  #and here 64000 = 64 khz
GPIO.output("P9_22",GPIO.HIGH)

On Thursday, July 17, 2014 2:36:15 PM UTC-4, ky...@cranehome.info wrote:
>
> It's set in device tree at boot time.   I don't think you are going to 
> find a way to change that on the fly with a running system.  
>
> On Wednesday, July 16, 2014 10:21:02 AM UTC-5, Ardit Cuka wrote:
>>
>> I just need a code in python that sets that frequency to what i want!
>>
>> On Tuesday, July 15, 2014 4:38:30 PM UTC-4, Ardit Cuka wrote:
>>>
>>> Maybe this might be a simple thing, but i have searched and could'nt get 
>>> nowhere.
>>> Thanks
>>>
>>

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[beagleboard] Re: How do I change the SPI clock (P9_22) speed on BBB? And what is the maximum speed?

[kyle]

It's set in device tree at boot time.   I don't think you are going to find 
a way to change that on the fly with a running system.  

On Wednesday, July 16, 2014 10:21:02 AM UTC-5, Ardit Cuka wrote:
>
> I just need a code in python that sets that frequency to what i want!
>
> On Tuesday, July 15, 2014 4:38:30 PM UTC-4, Ardit Cuka wrote:
>>
>> Maybe this might be a simple thing, but i have searched and could'nt get 
>> nowhere.
>> Thanks
>>
>

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Re: [beagleboard] Launching a .sh script @start BBB Augstrom

[Alfredo Muniz]

On Thu, Jul 17, 2014 at 8:08 AM,  wrote:

> when the bbb reboot the script isn't launched at all.


I found this link helpful when making services:
http://kezhong.wordpress.com/2011/11/19/creating-my-own-systemd-service-files-on-fedora-16x86_64/
It's possibly an order of operations thing. You can have the service run
last with Type=idle in the Service section.

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Re: [beagleboard] Using USB WIfi adapter on Debian 16-July-2014 image

[Robert Nelson]

On Thu, Jul 17, 2014 at 1:09 PM, Robert Nelson  wrote:
> On Thu, Jul 17, 2014 at 12:04 PM, Mark A. Yoder  
> wrote:
>> # lsusb
>> Bus 001 Device 002: ID 0cf3:9271 Atheros Communications, Inc. AR9271 802.11n
>> Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
>> Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
>>
>> http://paste.debian.net/110285/
>>
>> I switched to the 10-July-2014 image an am having the same results.
>
> Ah.. missing firmware:
>
> [   18.225450] usb 1-1: ath9k_htc: Firmware htc_9271.fw requested
> [   18.250536] usbcore: registered new interface driver ath9k_htc
> [   18.766269] usb 1-1: ath9k_htc: Failed to get firmware htc_9271.fw
> [   18.778499] usb 1-1: unregistering interface 1-1:1.0
> [   18.779261] usb 1-1: ath9k_htc: USB layer deinitialized
> [   18.779401] usb 1-1: usb_disable_device nuking non-ep0 URBs
>
> https://git.kernel.org/cgit/linux/kernel/git/firmware/linux-firmware.git/tree/htc_9271.fw

Hum, it should have been installed.

https://github.com/RobertCNelson/omap-image-builder/blob/master/scripts/chroot.sh#L754

The "lxde" image here should work..
http://elinux.org/Beagleboard:BeagleBoneBlack_Debian#2014-07-16

Regards,

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

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Re: [beagleboard] Using USB WIfi adapter on Debian 16-July-2014 image

[Robert Nelson]

On Thu, Jul 17, 2014 at 12:04 PM, Mark A. Yoder  wrote:
> # lsusb
> Bus 001 Device 002: ID 0cf3:9271 Atheros Communications, Inc. AR9271 802.11n
> Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
> Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
>
> http://paste.debian.net/110285/
>
> I switched to the 10-July-2014 image an am having the same results.

Ah.. missing firmware:

[   18.225450] usb 1-1: ath9k_htc: Firmware htc_9271.fw requested
[   18.250536] usbcore: registered new interface driver ath9k_htc
[   18.766269] usb 1-1: ath9k_htc: Failed to get firmware htc_9271.fw
[   18.778499] usb 1-1: unregistering interface 1-1:1.0
[   18.779261] usb 1-1: ath9k_htc: USB layer deinitialized
[   18.779401] usb 1-1: usb_disable_device nuking non-ep0 URBs

https://git.kernel.org/cgit/linux/kernel/git/firmware/linux-firmware.git/tree/htc_9271.fw

Regards,

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

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Re: [beagleboard] poll() on a pin returns constantly even though there is no input

[rar76]

Thank you for the information - I noticed others used the mmap instead of 
sysfs and I wondered how much overhead was in the read/write/open 
functions.  Can I ask what logic analyzer you're using?  I've been itching 
to get an oscilloscope, but even the cheapest is a few hundred.

Regards,
Rene

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Re: [beagleboard] Re: Cross-Compiling Qt5 on Beaglebone Black with OpenGL

[Don deJuan]

On 07/17/2014 10:20 AM, Jay Cady wrote:
> Don: I'm unsure of what you mean by using arch-linux arm.  Can you explain 
> how I would do this?
Install arch linux arm on your BBB as opposed to running Debian. Then
install qt5 or qt4 or both

> Aswin: I'm actually not sure if the touchscreen works with the Qt5 
> installation yet.  The touchscreen is definitely functioning with the 
> image, but I haven't been able to do any tests yet.  If I can get it 
> working with OpenGL, I'll let you know.
>
> Ashwin: A lot of the errors you get in configuring Qt from source are 
> normal.  They just indicate that it tried to build those modules because 
> you didn't explicitly say to exclude them, but they don't exist.  You can 
> suppress them by passing -no arguments with the module that is giving you 
> the issue when configuring (i.e. -no-sql-mysql).  It doesn't matter much 
> because if everything else is still good, it will still configure 
> successfully and just disable those modules.
>
> On Thursday, July 17, 2014 9:13:54 AM UTC-7, ashwin.s...@gmail.com wrote:
>> Hi,
>>
>> I am facing the same problem too. However, missing gl2.h is not the only 
>> error I am seeing. There are other similar errors for mysql.h, oci.h etc. 
>> I am using a the kernel version that supports SGX and was able to run a 
>> demo program. I do not see gl2.h anywhere in /usr/include directory. Please 
>> update if you find out any solution.
>>
>> Thanks,
>> Ashwin
>>
>> On Wednesday, July 16, 2014 12:25:19 PM UTC-7, Jay Cady wrote:
>>> Hey all,
>>>
>>> I’ve been googling around and searching for about 2 days now with no luck.
>>>
>>> I’m trying to cross-compile Qt5 (5.3.1 or 5.2.0) for the Beaglebone Black 
>>> and get Quick 2.0 and Qt Quick Controls working (so I need OpenGL). So far 
>>> I haven’t been able to find any good sources to walk me through this 
>>> process.
>>>
>>> I’m using a Chipsee 
>>> 
>>>  *[chipsee.com ]* cape to have an LCD and capacitive 
>>> touch screen with it. Chipsee gives me several prebuilt images, including a 
>>> Debian, Angstrom, Android, and LinuxEZSDK images. It looks like the 
>>> linuxEZSDK and Angstrom images come with all the OpenGL libraries 
>>> pre-loaded. The LinuxEZSDK comes pre-configured with everything for Qt, but 
>>> it’s Qt4.8. You can find their repo of images here 
>>> *[chipsee.com ]*.
>>>
>>> Right now I’ve been working with the LinuxEZSDK image to try and build 
>>> Qt5 from source and get it on there. I downloaded the linaro toolchain 
>>> 
>>>  *[launchpad.net ]* to use for the cross compile. 
>>> I edited the 5.3.1 source following this tutorial 
>>> 
>>>  *[armsdr.blogspot.com ]*to setup the build 
>>> for the cross-compile. If I follow that tutorial to a T, it works fine. But 
>>> if I try and configure using OpenGL by running the following configure 
>>> script:
>>>
>>>1. ../qt-everywhere-opensource-src-5.3.1/configure -v -opensource -
>>>confirm-license-no-pch -no-opengl -opengl es2 -make libs -device linux
>>>-beaglebone-g++ -xplatform linux-arm-gnueabihf-g++ -device-option 
>>>CROSS_COMPILE=/usr/local/linaro/bin/arm-linux-gnueabihf- -sysroot/
>>>media/jay/rootfs -no-gcc-sysroot -prefix /opt/qt5
>>>
>>> I mounted the SD card that countains the LinuxEZSDK in order to find the 
>>> OpenGL drivers and set the sysroot to /media/jay/rootfs, which is the root 
>>> of the OS. Configuring that gives me the following error:
>>>
>>>1. OpenGL ES 2.x auto-detection... ()
>>>2. /usr/local/linaro/bin/arm-linux-gnueabihf-g++ -c -pipe -O2 -Wall -
>>>W -fPIE  -I/home/jay/qt-everywhere-opensource-src-5.3.1/qtbase/mkspecs
>>>/linux-arm-gnueabihf-g++ -I/home/jay/qt-everywhere-opensource-src-
>>>5.3.1/qtbase/config.tests/unix/opengles2 -I. -o opengles2.o /home/jay/
>>>qt-everywhere-opensource-src-5.3.1/qtbase/config.tests/unix/opengles2/
>>>opengles2.cpp
>>>3. /home/jay/qt-everywhere-opensource-src-5.3.1/qtbase/config.tests/
>>>unix/opengles2/opengles2.cpp:45:25: fatal error:GLES2/gl2.h: No such 
>>>file or directory
>>>4.#include 
>>>5.  ^
>>>6. compilation terminated.
>>>7. make: *** [opengles2.o] Error 1
>>>8. OpenGL ES 2.x disabled.
>>>9. The OpenGL ES 2.0 functionality test failed!
>>>10.  You might need to modify the include and library search paths by 
>>>editing
>>>11.  QMAKE_INCDIR_OPENGL_ES2, QMAKE_LIBDIR_OPENGL_ES2 and 
>>>QMAKE_LIBS_OPENGL_ES2 in
>>>12.  /home/jay/qt-everywhere-opensource-sr

[beagleboard] Re: Cross-Compiling Qt5 on Beaglebone Black with OpenGL

[Jay Cady]

Ashwin: Can you elaborate on how you got the SGX stuff working?  I'm trying 
to follow this  tutorial and having some 
difficulties.

On Thursday, July 17, 2014 10:20:16 AM UTC-7, Jay Cady wrote:
>
> Don: I'm unsure of what you mean by using arch-linux arm.  Can you explain 
> how I would do this?
>
> Aswin: I'm actually not sure if the touchscreen works with the Qt5 
> installation yet.  The touchscreen is definitely functioning with the 
> image, but I haven't been able to do any tests yet.  If I can get it 
> working with OpenGL, I'll let you know.
>
> Ashwin: A lot of the errors you get in configuring Qt from source are 
> normal.  They just indicate that it tried to build those modules because 
> you didn't explicitly say to exclude them, but they don't exist.  You can 
> suppress them by passing -no arguments with the module that is giving you 
> the issue when configuring (i.e. -no-sql-mysql).  It doesn't matter much 
> because if everything else is still good, it will still configure 
> successfully and just disable those modules.
>
> On Thursday, July 17, 2014 9:13:54 AM UTC-7, ashwin.s...@gmail.com wrote:
>>
>> Hi,
>>
>> I am facing the same problem too. However, missing gl2.h is not the only 
>> error I am seeing. There are other similar errors for mysql.h, oci.h etc. 
>> I am using a the kernel version that supports SGX and was able to run a 
>> demo program. I do not see gl2.h anywhere in /usr/include directory. Please 
>> update if you find out any solution.
>>
>> Thanks,
>> Ashwin
>>
>> On Wednesday, July 16, 2014 12:25:19 PM UTC-7, Jay Cady wrote:
>>>
>>> Hey all,
>>>
>>> I’ve been googling around and searching for about 2 days now with no 
>>> luck.
>>>
>>> I’m trying to cross-compile Qt5 (5.3.1 or 5.2.0) for the Beaglebone 
>>> Black and get Quick 2.0 and Qt Quick Controls working (so I need OpenGL). 
>>> So far I haven’t been able to find any good sources to walk me through this 
>>> process.
>>>
>>> I’m using a Chipsee 
>>> 
>>>  *[chipsee.com ]* cape to have an LCD and 
>>> capacitive touch screen with it. Chipsee gives me several prebuilt images, 
>>> including a Debian, Angstrom, Android, and LinuxEZSDK images. It looks like 
>>> the linuxEZSDK and Angstrom images come with all the OpenGL libraries 
>>> pre-loaded. The LinuxEZSDK comes pre-configured with everything for Qt, but 
>>> it’s Qt4.8. You can find their repo of images here 
>>> *[chipsee.com ]*
>>> .
>>>
>>> Right now I’ve been working with the LinuxEZSDK image to try and build 
>>> Qt5 from source and get it on there. I downloaded the linaro toolchain 
>>> 
>>>  *[launchpad.net ]* to use for the cross compile. 
>>> I edited the 5.3.1 source following this tutorial 
>>> 
>>>  *[armsdr.blogspot.com ]*to setup the build 
>>> for the cross-compile. If I follow that tutorial to a T, it works fine. But 
>>> if I try and configure using OpenGL by running the following configure 
>>> script:
>>>
>>>1. ../qt-everywhere-opensource-src-5.3.1/configure -v -opensource -
>>>confirm-license-no-pch -no-opengl -opengl es2 -make libs -device 
>>>linux-beaglebone-g++ -xplatform linux-arm-gnueabihf-g++ -device-option 
>>>CROSS_COMPILE=/usr/local/linaro/bin/arm-linux-gnueabihf- -sysroot/
>>>media/jay/rootfs -no-gcc-sysroot -prefix /opt/qt5
>>>
>>> I mounted the SD card that countains the LinuxEZSDK in order to find the 
>>> OpenGL drivers and set the sysroot to /media/jay/rootfs, which is the root 
>>> of the OS. Configuring that gives me the following error:
>>>
>>>1. OpenGL ES 2.x auto-detection... ()
>>>2. /usr/local/linaro/bin/arm-linux-gnueabihf-g++ -c -pipe -O2 -Wall -
>>>W -fPIE  -I/home/jay/qt-everywhere-opensource-src-5.3.1/qtbase/
>>>mkspecs/linux-arm-gnueabihf-g++ -I/home/jay/qt-everywhere-opensource-
>>>src-5.3.1/qtbase/config.tests/unix/opengles2 -I. -o opengles2.o /home
>>>/jay/qt-everywhere-opensource-src-5.3.1/qtbase/config.tests/unix/
>>>opengles2/opengles2.cpp
>>>3. /home/jay/qt-everywhere-opensource-src-5.3.1/qtbase/config.tests/
>>>unix/opengles2/opengles2.cpp:45:25: fatal error:GLES2/gl2.h: No such 
>>>file or directory
>>>4.#include 
>>>5.  ^
>>>6. compilation terminated.
>>>7. make: *** [opengles2.o] Error 1
>>>8. OpenGL ES 2.x disabled.
>>>9. The OpenGL ES 2.0 functionality test failed!
>>>10.  You might need to modify the include and library search paths 
>>>by editing
>>>11.  QMAKE_INCDIR_OPENGL_ES2, 

[beagleboard] Re: Cross-Compiling Qt5 on Beaglebone Black with OpenGL

[Jay Cady]

Don: I'm unsure of what you mean by using arch-linux arm.  Can you explain 
how I would do this?

Aswin: I'm actually not sure if the touchscreen works with the Qt5 
installation yet.  The touchscreen is definitely functioning with the 
image, but I haven't been able to do any tests yet.  If I can get it 
working with OpenGL, I'll let you know.

Ashwin: A lot of the errors you get in configuring Qt from source are 
normal.  They just indicate that it tried to build those modules because 
you didn't explicitly say to exclude them, but they don't exist.  You can 
suppress them by passing -no arguments with the module that is giving you 
the issue when configuring (i.e. -no-sql-mysql).  It doesn't matter much 
because if everything else is still good, it will still configure 
successfully and just disable those modules.

On Thursday, July 17, 2014 9:13:54 AM UTC-7, ashwin.s...@gmail.com wrote:
>
> Hi,
>
> I am facing the same problem too. However, missing gl2.h is not the only 
> error I am seeing. There are other similar errors for mysql.h, oci.h etc. 
> I am using a the kernel version that supports SGX and was able to run a 
> demo program. I do not see gl2.h anywhere in /usr/include directory. Please 
> update if you find out any solution.
>
> Thanks,
> Ashwin
>
> On Wednesday, July 16, 2014 12:25:19 PM UTC-7, Jay Cady wrote:
>>
>> Hey all,
>>
>> I’ve been googling around and searching for about 2 days now with no luck.
>>
>> I’m trying to cross-compile Qt5 (5.3.1 or 5.2.0) for the Beaglebone Black 
>> and get Quick 2.0 and Qt Quick Controls working (so I need OpenGL). So far 
>> I haven’t been able to find any good sources to walk me through this 
>> process.
>>
>> I’m using a Chipsee 
>> 
>>  *[chipsee.com ]* cape to have an LCD and capacitive 
>> touch screen with it. Chipsee gives me several prebuilt images, including a 
>> Debian, Angstrom, Android, and LinuxEZSDK images. It looks like the 
>> linuxEZSDK and Angstrom images come with all the OpenGL libraries 
>> pre-loaded. The LinuxEZSDK comes pre-configured with everything for Qt, but 
>> it’s Qt4.8. You can find their repo of images here 
>> *[chipsee.com ]*.
>>
>> Right now I’ve been working with the LinuxEZSDK image to try and build 
>> Qt5 from source and get it on there. I downloaded the linaro toolchain 
>> 
>>  *[launchpad.net ]* to use for the cross compile. 
>> I edited the 5.3.1 source following this tutorial 
>> 
>>  *[armsdr.blogspot.com ]*to setup the build 
>> for the cross-compile. If I follow that tutorial to a T, it works fine. But 
>> if I try and configure using OpenGL by running the following configure 
>> script:
>>
>>1. ../qt-everywhere-opensource-src-5.3.1/configure -v -opensource -
>>confirm-license-no-pch -no-opengl -opengl es2 -make libs -device linux
>>-beaglebone-g++ -xplatform linux-arm-gnueabihf-g++ -device-option 
>>CROSS_COMPILE=/usr/local/linaro/bin/arm-linux-gnueabihf- -sysroot/
>>media/jay/rootfs -no-gcc-sysroot -prefix /opt/qt5
>>
>> I mounted the SD card that countains the LinuxEZSDK in order to find the 
>> OpenGL drivers and set the sysroot to /media/jay/rootfs, which is the root 
>> of the OS. Configuring that gives me the following error:
>>
>>1. OpenGL ES 2.x auto-detection... ()
>>2. /usr/local/linaro/bin/arm-linux-gnueabihf-g++ -c -pipe -O2 -Wall -
>>W -fPIE  -I/home/jay/qt-everywhere-opensource-src-5.3.1/qtbase/mkspecs
>>/linux-arm-gnueabihf-g++ -I/home/jay/qt-everywhere-opensource-src-
>>5.3.1/qtbase/config.tests/unix/opengles2 -I. -o opengles2.o /home/jay/
>>qt-everywhere-opensource-src-5.3.1/qtbase/config.tests/unix/opengles2/
>>opengles2.cpp
>>3. /home/jay/qt-everywhere-opensource-src-5.3.1/qtbase/config.tests/
>>unix/opengles2/opengles2.cpp:45:25: fatal error:GLES2/gl2.h: No such 
>>file or directory
>>4.#include 
>>5.  ^
>>6. compilation terminated.
>>7. make: *** [opengles2.o] Error 1
>>8. OpenGL ES 2.x disabled.
>>9. The OpenGL ES 2.0 functionality test failed!
>>10.  You might need to modify the include and library search paths by 
>>editing
>>11.  QMAKE_INCDIR_OPENGL_ES2, QMAKE_LIBDIR_OPENGL_ES2 and 
>>QMAKE_LIBS_OPENGL_ES2 in
>>12.  /home/jay/qt-everywhere-opensource-src-5.3.1/qtbase/mkspecs/linux
>>-arm-gnueabihf-g++.
>>
>> I even tried modifying the qmake.conf at 
>> /qtbase/mkspecs/linux-arm-gnueabihf-g++ to include the following:
>>
>>1. QMAKE_INCDIR_OPENGL += /media/jay/rootfs/usr/in

Re: [beagleboard] How to keep Python pgm running if putty disconnects ???

[George Lu]

On Thu, Jul 17, 2014 at 8:49 AM,  wrote:

> I'm using a BBB Debian (2014-03-27) and I monitor temps with a Python
> prrogram.
> Currently, while developing, I access the BBB from a local PC via Putty.
> Various things happen which disconnect my PC session - this morning a
> dialog box said "A software error cause the connection to unexpectedly
> close" (or something similar) and temps were not logged for about 4 hours.
> In the future, I plan to post some "keep alive" timestamp and check that
> from another machine which will alert me if the monitor box stops
> posting... but thats another issue.
>
> My question is:  How can I have a session that runs on the BBB --- that I
> can connect to if I want to see it's progress - AND will always be running
> regardless of a remote session?
> I'm sure I could launch the Python pgm at bootup, or crontab, but I don't
> know how I could see output from that session.
>
> It might be that I don't really need to see the output continually - as
> I've become accustomed to via the Putty window.  Thats just a comfort
> issue.
> If I wanted to see recent temps, I'm sure I could write another Python pgm
> to analyze the log file and show me recent data.
>
> Your ideas appreciated.
> thx
> jaymer...
>

You could run your program in a screen (http://www.gnu.org/software/screen/)
or byobu (http://byobu.co/) session, which will stay alive after your putty
got disconnected. Both could be easily apt-get installed on BBB debian. I
prefer byobu myself.

And if you start your python program @reboot from crontab, you could pipe
the output to a file (program >> outputfilename). You could use "tail -f
 outputfilename" to monitor the output when you connect with putty.

George

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Re: [beagleboard] Using USB WIfi adapter on Debian 16-July-2014 image

[Mark A. Yoder]

# *lsusb*
Bus 001 Device 002: ID 0cf3:9271 Atheros Communications, Inc. AR9271 802.11n
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

http://paste.debian.net/110285/

I switched to the 10-July-2014 image an am having the same results.

Thanks...

--Mark

On Thursday, July 17, 2014 12:59:20 PM UTC-4, RobertCNelson wrote:
>
> On Thu, Jul 17, 2014 at 11:57 AM, Mark A. Yoder  > wrote: 
> > ifconfig -a doesn't list wlan0. 
> > 
> > What do I put in /etc/network/interfaces? 
>
> humm.. i wonder if we are missing some newer firmware.. 
>
> can you dump your pastebin and model via "lsusb" for me. 
>
> dmesg | pastebinit 
>
> Regards, 
>
>
> -- 
> Robert Nelson 
> http://www.rcn-ee.com/ 
>

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Re: [beagleboard] Using USB WIfi adapter on Debian 16-July-2014 image

[Robert Nelson]

On Thu, Jul 17, 2014 at 11:57 AM, Mark A. Yoder  wrote:
> ifconfig -a doesn't list wlan0.
>
> What do I put in /etc/network/interfaces?

humm.. i wonder if we are missing some newer firmware..

can you dump your pastebin and model via "lsusb" for me.

dmesg | pastebinit

Regards,


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

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Re: [beagleboard] Using USB WIfi adapter on Debian 16-July-2014 image

[Mark A. Yoder]

ifconfig -a doesn't list wlan0.

What do I put in /etc/network/interfaces?

--Mark

On Thursday, July 17, 2014 12:53:43 PM UTC-4, RobertCNelson wrote:
>
> On Thu, Jul 17, 2014 at 11:50 AM, Mark A. Yoder  > wrote: 
> > It's the lxde image.  I have a Atheros AR9271. I'm running with external 
> 5V 
> > supply. 
> > 
> > Is there something special that needs to be configured first? 
>
> It's wicd, when it takes hold of eth0, you can't use it for wlan0.. 
>
> Your device (wlan0) should show up under 
>
> /sbin/ifconfig -a 
>
> I usually just put wlan0 in /etc/network/interfaces 
>
> Regards, 
>
> -- 
> Robert Nelson 
> http://www.rcn-ee.com/ 
>

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Re: [beagleboard] Using USB WIfi adapter on Debian 16-July-2014 image

[Robert Nelson]

On Thu, Jul 17, 2014 at 11:50 AM, Mark A. Yoder  wrote:
> It's the lxde image.  I have a Atheros AR9271. I'm running with external 5V
> supply.
>
> Is there something special that needs to be configured first?

It's wicd, when it takes hold of eth0, you can't use it for wlan0..

Your device (wlan0) should show up under

/sbin/ifconfig -a

I usually just put wlan0 in /etc/network/interfaces

Regards,

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

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Re: [beagleboard] Using USB WIfi adapter on Debian 16-July-2014 image

[Mark A. Yoder]

It's the lxde image.  I have a Atheros AR9271. I'm running with external 5V 
supply.

Is there something special that needs to be configured first?

--Mark

On Thursday, July 17, 2014 11:52:26 AM UTC-4, RobertCNelson wrote:
>
> On Thu, Jul 17, 2014 at 10:49 AM, Mark A. Yoder  > wrote: 
> > Is there an easy way to use a Wifi adapter on Debian?  My definition of 
> easy 
> > is that you plug it in and it works. 
> > 
> > I've searched the web and have found several solutions that involve 
> > installing kernel modules, but I don't want to go that route. 
> > 
> > I've tried several USB Wifi adapters this morning.  lsusb finds them, 
> but 
> > wicd-curses reports "No wireless networks found.", but 
> > there are many in the area. 
>
> Is this the "console" or "lxde"... As the 'console' doesn't include 
> any firmware for wifi either..  But stick with Atheros based usb 
> chipsets. 
>
> Regards, 
>
> -- 
> Robert Nelson 
> http://www.rcn-ee.com/ 
>

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[beagleboard] Wifi connection porblem on Beaglebone Black

[Cristian Mitu]

Hello guys,


I have managed to install Debian wheezy 7.5 on my BBB. I have gotten most 
of everything to work but i am having problems with the wifi connection. I 
am using an Asus N13 that has the RTL8192 chipset so it is sported by my 
deiban version, the drivers are already installed.
I modified the interfaces script form /etc/networks to enable wlan0 and 
inserted the respective user and pas for the modem i was connecting on. I 
did ifup wlan0 and the first time it worked fine it connected and i pinged 
google.com and it worked. But the second time when i reset and did ifup 
wlan0 again it started tying to connect but could not get past DCHODISCOVER 
and didn't establish a connection. Next i tried with a different modem and 
modified the interfaces again. Same story first time worked the next times 
after that couldn't connect. 

After that i tried enabling the auto wlan0 line in the interfaces script so 
that it would do this on boot. This seemed to work for the first two times 
but today i am having yet again the same problem. I managed just a few 
minutes ago to get the connection up and running yet again ( i don't know 
how though it just worked) and this time i checked to see what exactly it 
connected to:

DHCPOFFER from 192.168.1.1
DHCPACK from 192.168.1.1
 

Now unfortunately i don't know how these ip addresses work but i know that 
192,168,7.2 is the address i use to connect to the BBB when i do SSH form 
terminal and 192.168.7.1 is my computer (at least as far as i understand). 
So i do not know if it is getting internet through the usb cable or the 
wifi. To be sure i disabled my wifi on the computer and also unplugged my 
ethernet cable so i shouldn't be getting internet form anything. I rebooted 
the BBB and i managed to connect again to wifi. Also to check i did 
ifconfig and got the following output :

eth0  Link encap:Ethernet  HWaddr 90:59:af:5b:44:16  
  UP BROADCAST MULTICAST  MTU:1500  Metric:1
  RX packets:0 errors:0 dropped:0 overruns:0 frame:0
  TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
  collisions:0 txqueuelen:1000 
  RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
  Interrupt:40 

loLink encap:Local Loopback  
  inet addr:127.0.0.1  Mask:255.0.0.0
  inet6 addr: ::1/128 Scope:Host
  UP LOOPBACK RUNNING  MTU:65536  Metric:1
  RX packets:0 errors:0 dropped:0 overruns:0 frame:0
  TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
  collisions:0 txqueuelen:0 
  RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

usb0  Link encap:Ethernet  HWaddr 0e:b5:cf:b9:5a:b0  
  inet addr:192.168.7.2  Bcast:192.168.7.3  Mask:255.255.255.252
  inet6 addr: fe80::cb5:cfff:feb9:5ab0/64 Scope:Link
  UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
  RX packets:303 errors:0 dropped:0 overruns:0 frame:0
  TX packets:246 errors:0 dropped:0 overruns:0 carrier:0
  collisions:0 txqueuelen:1000 
  RX bytes:26794 (26.1 KiB)  TX bytes:48312 (47.1 KiB)

wlan0 Link encap:Ethernet  HWaddr bc:ee:7b:e5:11:90  
  inet addr:192.168.1.103  Bcast:192.168.1.255  Mask:255.255.255.0
  inet6 addr: fe80::beee:7bff:fee5:1190/64 Scope:Link
  UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
  RX packets:250 errors:0 dropped:5 overruns:0 frame:0
  TX packets:104 errors:0 dropped:3 overruns:0 carrier:0
  collisions:0 txqueuelen:1000 
  RX bytes:101359 (98.9 KiB)  TX bytes:44326 (43.2 KiB)

>From the looks of it usb0 should be my connection to the PC sinc the Inet 
addr is 192.168.7.2 , wlan0 is transmitting and recieving. But i don't know 
exactly , i am a noob at these things.

The problem is that i do not know why it sometimes doesn't work. The modem 
i am connecting to has full signal so i don't think that is the problem. 
The pass and user have been checked so it should be fine. What i have 
suspicion for is the power supply. I am using a 4.5V 1A power supply. Most 
of the times it works with the wifi connected but about 3 times it happened 
that the whole board just shut down by itself after boot.

I thank you in advance for your responses and sory for the long post i just 
had to fill you in so it is more easy to see the problem.

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[beagleboard] Re: Cross-Compiling Qt5 on Beaglebone Black with OpenGL

[ashwin . space2000]

Hi,

I am facing the same problem too. However, missing gl2.h is not the only 
error I am seeing. There are other similar errors for mysql.h, oci.h etc. 
I am using a the kernel version that supports SGX and was able to run a 
demo program. I do not see gl2.h anywhere in /usr/include directory. Please 
update if you find out any solution.

Thanks,
Ashwin

On Wednesday, July 16, 2014 12:25:19 PM UTC-7, Jay Cady wrote:
>
> Hey all,
>
> I’ve been googling around and searching for about 2 days now with no luck.
>
> I’m trying to cross-compile Qt5 (5.3.1 or 5.2.0) for the Beaglebone Black 
> and get Quick 2.0 and Qt Quick Controls working (so I need OpenGL). So far 
> I haven’t been able to find any good sources to walk me through this 
> process.
>
> I’m using a Chipsee 
> 
>  *[chipsee.com ]* cape to have an LCD and capacitive 
> touch screen with it. Chipsee gives me several prebuilt images, including a 
> Debian, Angstrom, Android, and LinuxEZSDK images. It looks like the 
> linuxEZSDK and Angstrom images come with all the OpenGL libraries 
> pre-loaded. The LinuxEZSDK comes pre-configured with everything for Qt, but 
> it’s Qt4.8. You can find their repo of images here 
> *[chipsee.com ]*.
>
> Right now I’ve been working with the LinuxEZSDK image to try and build Qt5 
> from source and get it on there. I downloaded the linaro toolchain 
> 
>  *[launchpad.net ]* to use for the cross compile. I 
> edited the 5.3.1 source following this tutorial 
> 
>  *[armsdr.blogspot.com ]*to setup the build 
> for the cross-compile. If I follow that tutorial to a T, it works fine. But 
> if I try and configure using OpenGL by running the following configure 
> script:
>
>1. ../qt-everywhere-opensource-src-5.3.1/configure -v -opensource -
>confirm-license-no-pch -no-opengl -opengl es2 -make libs -device linux-
>beaglebone-g++ -xplatform linux-arm-gnueabihf-g++ -device-option 
>CROSS_COMPILE=/usr/local/linaro/bin/arm-linux-gnueabihf- -sysroot/media
>/jay/rootfs -no-gcc-sysroot -prefix /opt/qt5
>
> I mounted the SD card that countains the LinuxEZSDK in order to find the 
> OpenGL drivers and set the sysroot to /media/jay/rootfs, which is the root 
> of the OS. Configuring that gives me the following error:
>
>1. OpenGL ES 2.x auto-detection... ()
>2. /usr/local/linaro/bin/arm-linux-gnueabihf-g++ -c -pipe -O2 -Wall -W 
>-fPIE  -I/home/jay/qt-everywhere-opensource-src-5.3.1/qtbase/mkspecs/
>linux-arm-gnueabihf-g++ -I/home/jay/qt-everywhere-opensource-src-5.3.1/
>qtbase/config.tests/unix/opengles2 -I. -o opengles2.o /home/jay/qt-
>everywhere-opensource-src-5.3.1/qtbase/config.tests/unix/opengles2/
>opengles2.cpp
>3. /home/jay/qt-everywhere-opensource-src-5.3.1/qtbase/config.tests/
>unix/opengles2/opengles2.cpp:45:25: fatal error:GLES2/gl2.h: No such 
>file or directory
>4.#include 
>5.  ^
>6. compilation terminated.
>7. make: *** [opengles2.o] Error 1
>8. OpenGL ES 2.x disabled.
>9. The OpenGL ES 2.0 functionality test failed!
>10.  You might need to modify the include and library search paths by 
>editing
>11.  QMAKE_INCDIR_OPENGL_ES2, QMAKE_LIBDIR_OPENGL_ES2 and 
>QMAKE_LIBS_OPENGL_ES2 in
>12.  /home/jay/qt-everywhere-opensource-src-5.3.1/qtbase/mkspecs/linux-
>arm-gnueabihf-g++.
>
> I even tried modifying the qmake.conf at 
> /qtbase/mkspecs/linux-arm-gnueabihf-g++ to include the following:
>
>1. QMAKE_INCDIR_OPENGL += /media/jay/rootfs/usr/include
>2. QMAKE_LIBDIR_OPENGL += /media/jay/rootfs/usr/lib
>3. QMAKE_LIBS_OPENGL_ES2 =
>
> But that resulted in the same error.
>
> Does anyone have any ideas how I can get this cross compiled for the 
> Beaglebone with support for Qt Quick 2 and Qt Quick Controls?
>
> Thanks!
>

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Re: [beagleboard] inaccuracy issue of clock_nanosleep() with Debian

[John Stampfl]

You also might find accessing the timers from PRU is more accurate


On Fri, Jul 18, 2014 at 12:10 AM,  wrote:

> Hello, John,
> Excuse me, may I ask that PRU can be used beyond linux system clock?
> Because I need to synchronize my BBB with ourter PTP(precision time
> protocol) message , if PRU using its clock, then the BBB will become
> asynchronized device..
>
> Thanks.
>
>
>
>
>
> John Stampfl於 2014年7月17日星期四UTC+8下午11時02分32秒寫道：
>>
>> Try the "cycle counter" in the pru.
>>
>> look in the pru section of the forum
>>
>>
>> On Thu, Jul 17, 2014 at 10:35 PM,  wrote:
>>
>>> I use BeagleboneBlack with Debian, kernel v3.15, and I want to implement
>>> an accurate timer on my BBB.
>>> I use clock_nanosleep() to wait for 1 second. However, it always turns
>>> to be 1 second and 100~120 microsecond delay. (I measured clock_nanosleep()
>>> between clock_gettime() and with oscilloscope.)
>>>
>>> I also run linuxPTP (a software that adjusts system clock,
>>> CLOCK_REALTIME, to synchronize linux system with PTP.) to synchronize my
>>> BBB.
>>>
>>> I have no idea how to improve it, should I change linux to real-time
>>> linux? (Xenomai or RobertCNelson's patch for linux)
>>> or is there another way (such as software, codes, etc) to get more
>>> accuracy timer? (under 1us delay.)
>>>
>>> Thanks!
>>>
>>> --
>>> For more options, visit http://beagleboard.org/discuss
>>> ---
>>> You received this message because you are subscribed to the Google
>>> Groups "BeagleBoard" group.
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>>> an email to beagleboard...@googlegroups.com.
>>>
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>>>
>>
>>
>>
>> --
>> John Stampfl
>>
>  --
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-- 
John Stampfl

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Re: [beagleboard] debian 2014-07-16

[William Hermans]

Robert, I saw someone mention something about misconfiguration ( for NFS ).
John, and I both we're posting on that topic, but I do not remember which
post it was. Mainly it was two options, but again which two . . .I do not
recall.

I've been using 3.8.x since I started last year, and it has always worked.
I've also doubled checked all NFS related settings, until my most recent
compile. They've all worked.

Also I'm not sure iSCSI is needed much any more. I toyed with it last year
in hopes of getting a Netboot iSCSI setup, but NFS performance on this
little board truly rocks.


On Thu, Jul 17, 2014 at 8:14 AM, Robert Nelson 
wrote:

> On Wed, Jul 16, 2014 at 7:22 PM, Robert Nelson 
> wrote:
> > On Wed, Jul 16, 2014 at 5:45 PM, John Syn  wrote:
> >> I've attached my uEnv.txt file I use for mounting rootfs over NFS. Not
> >> sure how to work around using two kernels, one built with initrd and
> >> another without initrd support.
>
> okay, same kernel (v3.15.5-bone5) supports both initrd boot and nfs
> boot.  Now i'm confused, why was this broken in prior kernels?
>
> nfsboot:
> http://pastebin.com/sXFSu7k3
>
> debian@beaglebone:~$ cat disk/uEnv.txt
> client_ip=192.168.0.118
> server_ip=192.168.0.10
> gw_ip=192.168.0.1
> root_dir=/opt/wheezy
>
> mmcboot:
> http://pastebin.com/EKDpTvYc
>
> Regards,
>
> --
> Robert Nelson
> http://www.rcn-ee.com/
>
> --
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[beagleboard] How to keep Python pgm running if putty disconnects ???

[jaymerjaymer]

I'm using a BBB Debian (2014-03-27) and I monitor temps with a Python 
prrogram.
Currently, while developing, I access the BBB from a local PC via Putty. 
Various things happen which disconnect my PC session - this morning a 
dialog box said "A software error cause the connection to unexpectedly 
close" (or something similar) and temps were not logged for about 4 hours.  
In the future, I plan to post some "keep alive" timestamp and check that 
from another machine which will alert me if the monitor box stops 
posting... but thats another issue.

My question is:  How can I have a session that runs on the BBB --- that I 
can connect to if I want to see it's progress - AND will always be running 
regardless of a remote session?
I'm sure I could launch the Python pgm at bootup, or crontab, but I don't 
know how I could see output from that session.

It might be that I don't really need to see the output continually - as 
I've become accustomed to via the Putty window.  Thats just a comfort 
issue.  
If I wanted to see recent temps, I'm sure I could write another Python pgm 
to analyze the log file and show me recent data.

Your ideas appreciated.
thx
jaymer...

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[beagleboard] custom cape i2c bus

[johan . korten]

I managed to make my own cape (for two XBee modules). It works very well 
(even sending between the two modules and to the third one on the 
computer), but:

if I use node ./eeprom.js

I suspect that my cape is expected to be connected to the fourth (or third 
if you start counting at 0) i2c bus:

/sys/bus/i2c/drivers/at24/3-0057/eeprom instead of 
/sys/bus/i2c/drivers/at24/1-0057/eeprom 

So should I fix that in my cape (my cape is default at 
/sys/bus/i2c/drivers/at24/1-0057 
but can be configured to go from /sys/bus/i2c/drivers/at24/1-0054 .. 
/sys/bus/i2c/drivers/at24/1-0057)

Apart from that, I managed to program the eeprom and get it working, but 
since it uses UART 2 and UART 5 I needed to change /boot/uboot/uEnv.txt to 
get that working (BBB Rev B so that is why I needed to 
change /boot/uboot/uEnv.txt instead of /media/BEAGLEBONE/uEnv.txt), but do 
I need to supply that with my final version somewhere or is it enough to 
put that in the manual?

Sincerely,
Johan

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[beagleboard] Re: GLShim, SGX video and Minecraft

[jaymerjaymer]

Yes, keep us updated on your progress.
Stable MC would be great on BBB

On Tuesday, July 15, 2014 1:15:03 PM UTC-4, Joey Carlini wrote:
>
> So, in my never ending quest for a portable rig of the latest and most 
> functional version of Minecraft,...

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[beagleboard] Launching a .sh script @start BBB Augstrom

[nyhoor]

So i have a Beagle Bone Black linked to an HDMI screen via HDMI (it works) 
and a ssh access via USB.
I have a basic network script to lauch when the beagle bone power on. The 
script is working fine when started "manually" via ssh.

Followed this tuto http://mattrichardson.com/BeagleBone-System-Services/ 
but when the bbb reboot the script isn't launched at all.

*root@beaglebone:/lib/systemd/*











*system# ls -la | grep monService.service -rwxrwxrwx  1 root  root242 
Jan  1 06:33 monService.serviceroot@beaglebone:/lib/systemd/system# cat 
monService.service [Unit] 
Description=blabla[Service]WorkingDirectory=/home/root/ExecStart=/monScript.shRemainAfterExit=yes[Install]WantedBy=multi-user.target*



status when started :

monService.service - blabla
  Loaded: loaded (/lib/systemd/system/monService.service; enabled)
  Active: active (exited) (Result: exit-code) since Sat 2000-01-01 
06:35:59 CET; 28min ago
Main PID: 132 (code=exited, status=203/EXEC)
  CGroup: name=systemd:/system/monService.service

Jan 01 06:40:01 beaglebone systemd[1]: Started blabla
Jan 01 06:40:16 beaglebone systemd[1]: Started blabla

Any help would be nice !

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[beagleboard] Re: Watchdog timeout

[hausladen . j]

Having the same issue on my BBB (element14)

Am Sonntag, 22. Juni 2014 08:32:17 UTC+2 schrieb ib saito:
>
> Hi all
>
> I installed  Motion to BBB. And I was streaming video webcamera.
> OS is Ubuntu 14.04.
>
> When 320x240 settings of Motion, streaming has been successfully.
> However, it failed when the 640x480 settings of Motion.
>
> Then syslog
> motion: [1] Resizing pre_capture buffer to 1 items
> motion: [0] httpd Closing
> motion: [0] httpd thread exit
> motion: [0] Thread 1 - Watchdog timeout, trying to do a graceful restart
> motion: [0] Thread 1 - Watchdog timeout, did NOT restart graceful, killing 
> it!
>
> I have also Beagleboard-xM, and I can stream 640x480 pixels on 
> Beagleboard-xM.
>
> I thought that the cause of the failure depend the ability of the BBB.
> However, when tested using the mjpg_streamer, at 640x480 pixels, I was 
> able to streaming.
>
> What is cause of Whatchdog timeout?
>
>

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Re: [beagleboard] inaccuracy issue of clock_nanosleep() with Debian

[sun19920218]

Hello, John,
Excuse me, may I ask that PRU can be used beyond linux system clock?
Because I need to synchronize my BBB with ourter PTP(precision time 
protocol) message , if PRU using its clock, then the BBB will become 
asynchronized device..  

Thanks.





John Stampfl於 2014年7月17日星期四UTC+8下午11時02分32秒寫道：
>
> Try the "cycle counter" in the pru.
>
> look in the pru section of the forum
>
>
> On Thu, Jul 17, 2014 at 10:35 PM, > 
> wrote:
>
>> I use BeagleboneBlack with Debian, kernel v3.15, and I want to implement 
>> an accurate timer on my BBB.
>> I use clock_nanosleep() to wait for 1 second. However, it always turns to 
>> be 1 second and 100~120 microsecond delay. (I measured clock_nanosleep() 
>> between clock_gettime() and with oscilloscope.) 
>>
>> I also run linuxPTP (a software that adjusts system clock, 
>> CLOCK_REALTIME, to synchronize linux system with PTP.) to synchronize my 
>> BBB.
>>
>> I have no idea how to improve it, should I change linux to real-time 
>> linux? (Xenomai or RobertCNelson's patch for linux)
>> or is there another way (such as software, codes, etc) to get more 
>> accuracy timer? (under 1us delay.) 
>>
>> Thanks!
>>
>> -- 
>> For more options, visit http://beagleboard.org/discuss
>> --- 
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>> "BeagleBoard" group.
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>> email to beagleboard...@googlegroups.com .
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>>
>
>
>
> -- 
> John Stampfl
>  

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Re: [beagleboard] Using USB WIfi adapter on Debian 16-July-2014 image

[Robert Nelson]

On Thu, Jul 17, 2014 at 10:49 AM, Mark A. Yoder  wrote:
> Is there an easy way to use a Wifi adapter on Debian?  My definition of easy
> is that you plug it in and it works.
>
> I've searched the web and have found several solutions that involve
> installing kernel modules, but I don't want to go that route.
>
> I've tried several USB Wifi adapters this morning.  lsusb finds them, but
> wicd-curses reports "No wireless networks found.", but
> there are many in the area.

Is this the "console" or "lxde"... As the 'console' doesn't include
any firmware for wifi either..  But stick with Atheros based usb
chipsets.

Regards,

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

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[beagleboard] Using USB WIfi adapter on Debian 16-July-2014 image

[Mark A. Yoder]

Is there an easy way to use a Wifi adapter on Debian?  My definition of 
easy is that you plug it in and it works.

I've searched the web and have found several solutions that involve 
installing kernel modules, but I don't want to go that route.

I've tried several USB Wifi adapters this morning.  *lsusb *finds them, but 
*wicd-curses* reports "No wireless networks found.", but
there are many in the area.

--Mark

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Re: [beagleboard] debian 2014-07-16

[Robert Nelson]

On Wed, Jul 16, 2014 at 7:22 PM, Robert Nelson  wrote:
> On Wed, Jul 16, 2014 at 5:45 PM, John Syn  wrote:
>> I've attached my uEnv.txt file I use for mounting rootfs over NFS. Not
>> sure how to work around using two kernels, one built with initrd and
>> another without initrd support.

okay, same kernel (v3.15.5-bone5) supports both initrd boot and nfs
boot.  Now i'm confused, why was this broken in prior kernels?

nfsboot:
http://pastebin.com/sXFSu7k3

debian@beaglebone:~$ cat disk/uEnv.txt
client_ip=192.168.0.118
server_ip=192.168.0.10
gw_ip=192.168.0.1
root_dir=/opt/wheezy

mmcboot:
http://pastebin.com/EKDpTvYc

Regards,

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

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Re: [beagleboard] inaccuracy issue of clock_nanosleep() with Debian

[John Stampfl]

Try the "cycle counter" in the pru.

look in the pru section of the forum


On Thu, Jul 17, 2014 at 10:35 PM,  wrote:

> I use BeagleboneBlack with Debian, kernel v3.15, and I want to implement
> an accurate timer on my BBB.
> I use clock_nanosleep() to wait for 1 second. However, it always turns to
> be 1 second and 100~120 microsecond delay. (I measured clock_nanosleep()
> between clock_gettime() and with oscilloscope.)
>
> I also run linuxPTP (a software that adjusts system clock, CLOCK_REALTIME,
> to synchronize linux system with PTP.) to synchronize my BBB.
>
> I have no idea how to improve it, should I change linux to real-time
> linux? (Xenomai or RobertCNelson's patch for linux)
> or is there another way (such as software, codes, etc) to get more
> accuracy timer? (under 1us delay.)
>
> Thanks!
>
> --
> For more options, visit http://beagleboard.org/discuss
> ---
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> "BeagleBoard" group.
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>



-- 
John Stampfl

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[beagleboard] Re: Cross-Compiling Qt5 on Beaglebone Black with OpenGL

[Aswin]

Hi Jay,

Sorry for deviating from the topic, but I'd like to know if the touchscreen 
is working fine with your installation of Qt5.

On Thursday, July 17, 2014 12:55:19 AM UTC+5:30, Jay Cady wrote:
>
> Hey all,
>
> I’ve been googling around and searching for about 2 days now with no luck.
>
> I’m trying to cross-compile Qt5 (5.3.1 or 5.2.0) for the Beaglebone Black 
> and get Quick 2.0 and Qt Quick Controls working (so I need OpenGL). So far 
> I haven’t been able to find any good sources to walk me through this 
> process.
>
> I’m using a Chipsee 
> 
>  *[chipsee.com ]* cape to have an LCD and capacitive 
> touch screen with it. Chipsee gives me several prebuilt images, including a 
> Debian, Angstrom, Android, and LinuxEZSDK images. It looks like the 
> linuxEZSDK and Angstrom images come with all the OpenGL libraries 
> pre-loaded. The LinuxEZSDK comes pre-configured with everything for Qt, but 
> it’s Qt4.8. You can find their repo of images here 
> *[chipsee.com ]*.
>
> Right now I’ve been working with the LinuxEZSDK image to try and build Qt5 
> from source and get it on there. I downloaded the linaro toolchain 
> 
>  *[launchpad.net ]* to use for the cross compile. I 
> edited the 5.3.1 source following this tutorial 
> 
>  *[armsdr.blogspot.com ]*to setup the build 
> for the cross-compile. If I follow that tutorial to a T, it works fine. But 
> if I try and configure using OpenGL by running the following configure 
> script:
>
>1. ../qt-everywhere-opensource-src-5.3.1/configure -v -opensource -
>confirm-license-no-pch -no-opengl -opengl es2 -make libs -device linux-
>beaglebone-g++ -xplatform linux-arm-gnueabihf-g++ -device-option 
>CROSS_COMPILE=/usr/local/linaro/bin/arm-linux-gnueabihf- -sysroot/media
>/jay/rootfs -no-gcc-sysroot -prefix /opt/qt5
>
> I mounted the SD card that countains the LinuxEZSDK in order to find the 
> OpenGL drivers and set the sysroot to /media/jay/rootfs, which is the root 
> of the OS. Configuring that gives me the following error:
>
>1. OpenGL ES 2.x auto-detection... ()
>2. /usr/local/linaro/bin/arm-linux-gnueabihf-g++ -c -pipe -O2 -Wall -W 
>-fPIE  -I/home/jay/qt-everywhere-opensource-src-5.3.1/qtbase/mkspecs/
>linux-arm-gnueabihf-g++ -I/home/jay/qt-everywhere-opensource-src-5.3.1/
>qtbase/config.tests/unix/opengles2 -I. -o opengles2.o /home/jay/qt-
>everywhere-opensource-src-5.3.1/qtbase/config.tests/unix/opengles2/
>opengles2.cpp
>3. /home/jay/qt-everywhere-opensource-src-5.3.1/qtbase/config.tests/
>unix/opengles2/opengles2.cpp:45:25: fatal error:GLES2/gl2.h: No such 
>file or directory
>4.#include 
>5.  ^
>6. compilation terminated.
>7. make: *** [opengles2.o] Error 1
>8. OpenGL ES 2.x disabled.
>9. The OpenGL ES 2.0 functionality test failed!
>10.  You might need to modify the include and library search paths by 
>editing
>11.  QMAKE_INCDIR_OPENGL_ES2, QMAKE_LIBDIR_OPENGL_ES2 and 
>QMAKE_LIBS_OPENGL_ES2 in
>12.  /home/jay/qt-everywhere-opensource-src-5.3.1/qtbase/mkspecs/linux-
>arm-gnueabihf-g++.
>
> I even tried modifying the qmake.conf at 
> /qtbase/mkspecs/linux-arm-gnueabihf-g++ to include the following:
>
>1. QMAKE_INCDIR_OPENGL += /media/jay/rootfs/usr/include
>2. QMAKE_LIBDIR_OPENGL += /media/jay/rootfs/usr/lib
>3. QMAKE_LIBS_OPENGL_ES2 =
>
> But that resulted in the same error.
>
> Does anyone have any ideas how I can get this cross compiled for the 
> Beaglebone with support for Qt Quick 2 and Qt Quick Controls?
>
> Thanks!
>

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[beagleboard] inaccuracy issue of clock_nanosleep() with Debian

[sun19920218]

I use BeagleboneBlack with Debian, kernel v3.15, and I want to implement an 
accurate timer on my BBB.
I use clock_nanosleep() to wait for 1 second. However, it always turns to 
be 1 second and 100~120 microsecond delay. (I measured clock_nanosleep() 
between clock_gettime() and with oscilloscope.) 

I also run linuxPTP (a software that adjusts system clock, CLOCK_REALTIME, 
to synchronize linux system with PTP.) to synchronize my BBB.

I have no idea how to improve it, should I change linux to real-time linux? 
(Xenomai or RobertCNelson's patch for linux)
or is there another way (such as software, codes, etc) to get more accuracy 
timer? (under 1us delay.) 

Thanks!

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Re: [beagleboard] enabling the BBxM to start in 'ro' mode

[Leonardo Gabrielli]

Thank you. Could you post here the scripts (or send me them to me?). I fear 
the problem is not with the script but with the need of creating a initrd 
image with aufs to allow for temporary storage of information on the RAM, 
as it is done with Live CDs.

Would mounting rootfs read-only be possible without compromising 
functioning of the system? 
I'm sure there must be someone expert out there...

L

On Tuesday, July 15, 2014 4:41:58 PM UTC+2, WB8TKL wrote:
>
> Greetings, 
> There is a Linux distro called "Voyage Linux" that runs read-only. 
> There are scripts that can be run as root called 'remountrw' and remoutro' 
> to change modes as neccessary. 
>
> Sadly, Voyage Linux is written to run on the x86 andis not available 
> for the ARM processor.  But if someone ever converts it to ARM I will 
> switch in a heartbeat!  I have several Voyage boxes being used for data 
> collection and love them!  It would certainly be sweet to have Voyage on 
> the BBB :) 
>
> See:  http://linux.voyage.hk 
>
> Enjoy! 
>--- Jay Nugent  WB8TKL 
>Ypsilanti, Michigan 
>
>
>
> On Fri, 11 Jul 2014, Leonardo Gabrielli wrote: 
>
> > Hello, 
> > I'd need the SD image I prepared for the xM to be supplied to people 
> > without them changing a single bit in it. Also, this avoids write 
> failure 
> > with power supply failures and increases the life of the SD. 
> >> From my understanding this can be done by mounting the rootfs as 
> read-only 
> > at some point in the boot and writing any change to the RAM without 
> making 
> > them persistent. But I'm not expert in the bootstrap process with Linux. 
> > 
> > The only similar case I know in detail so far is with Ubuntu 10.10 
> > https://ccrma.stanford.edu/~eberdahl/satellite/ and it has two uInitrd 
> > images for boot, one with aufs enable and the other without. They only 
> > differ in a couple of scripts and if one wants changes to be persistents 
> it 
> > is enough to mv files in the boot partition in order for the bootloader 
> to 
> > pick the right one. 
> > 
> > Now, I'm using debian and the rcn-ee builds. Here the boot partition is 
> > different it uses initrd.img and zImage. I'm not sure what to do here 
> since 
> > it is a different boot method. 
> > Are there any suggestions on how to reach my goal? Any simple solution, 
> > even performed with an init script after bootstrap would be fine as a 
> > starter. 
> > 
> > Regards 
> > 
> > 
>
> -- 
>
>  () ascii ribbon campaign in 
>  /\ support of plain text e-mail 
>
>   o Averaging at least 3 days of MTBWTF!?!?!? 
>   o The solution for long term Internet growth is IPv6. 
>   o "To compel a man to furnish funds for the propagation of ideas he 
>  disbelieves and abhors is sinful and tyrannical." -Thomas Jefferson 
> ++ 
> | Jay Nugent   j...@nuge.com (734)484-5105   
>  (734)649-0850/Cell   | 
> |   Nugent Telecommunications  [www.nuge.com]   
>  | 
> |   Internet Consulting/Linux SysAdmin/Engineering & Design  | 
> | ISP Monitoring [www.ispmonitor.org] ISP & Modem Performance Monitoring 
> | 
> ++ 
>   10:01:01 up 8 days,  2:17,  1 user,  load average: 0.82, 0.73, 0.99 
>

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Re: [beagleboard] Beaglebone SPI

[Jack Mitchell]

On 16/07/14 17:08, geetha wrote:
> I am new to Beaglebone & not too familiar with Linux.
> 
> My application requires data to be acquired from a device on SPI &
> transmit it on LAN.
> 
> I am using the preloaded Angstrom OS. 
> 
> I have setup the environment for development by precisely following
> 
> http://jkuhlm.bplaced.net/hellobone/
> 
> With this platform, I am able to develop application for LAN transmission.
> 
> For SPI interface I have followed
> 
> http://elinux.org/BeagleBone_Black_Enable_SPIDEV
> 
> I have to use SPI0.  I am able to reach properly upto the step of
> compiling & running the spidev_test code.  Following are my questions
> 
>  1.Does the preloaded Angstrom has SPI device built in the
> kernel or should the kernel be rebuilt by including the spidev.c?

Yes, SPI is included in the Angstrom kernel.

>  2. Will the gcc libraries compile the SPIdev_test code?  I
> am getting ‘undefined error for SPI_TX_QUAD’ and many more which I
> am finding defined in spi.h which is not in gcc include.  Can I
> simply copy spi.h file into the include directory and compile?

Where did you get spidev.c from? You must use the same source as the
kernel; if you use a newer source it may not compile with the older
version of the kernel you are using.

>  3.With reference to the below segment in the .dts file,
> sclk is mentioned as input.  However, I would like BBB to be master
> to generate clock for the external device.  In such case, should the
> change the value to 0x10?

No, this a "quirk" with the spi driver, the clock is set as INPUT but it
will also OUTPUT on the pin.

> 
> 4.  fragment@0 {
> 
> 5.  target = <&am33xx_pinmux>;
> 
> 6.  __overlay__ {
> 
> 7.  spi0_pins_s0: spi0_pins_s0 {
> 
> 8.  pinctrl-single,pins = <
> 
> 9.0x150 0x30  /* spi0_sclk, INPUT_PULLUP | MODE0 */
> 
> 10.0x154 0x30  /* spi0_d0, INPUT_PULLUP | MODE0 */
> 
> 11.0x158 0x10  /* spi0_d1, OUTPUT_PULLUP | MODE0 */
> 
> 12.0x15c 0x10  /* spi0_cs0, OUTPUT_PULLUP | MODE0 */
> 
> 13.  >;
> 
> 14.  };
> 
> 15.  };
> 
> 16.  };
> 
> 4.  The pin mapping file shows that the SPI pins are mapped to 84,….. 
> How to verify that it has been correctly mapped to the processor pin number.

This data can be found in the am335x TRM; you have to find the pinctrl
register in the TRM and then match the offset 0x150 to the table and
double check that it is SPI.

> 
>  Request help for these trivial questions. 
> 
>  Thanks 
> 

-- 
  Jack Mitchell (j...@embed.me.uk)
  Embedded Systems Engineer
  Cambridgeshire, UK
  http://www.embed.me.uk
-- 

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Re: [beagleboard] Measuring a BBB's own supply voltage

[Gerald Coley]

If you added an external power measurement device that is read via one of
the serial ports. That would only measure the power of the code that is
reading the power device. I am not sure if you are looking for na average
or just a single point in time.

Gerald



On Wed, Jul 16, 2014 at 5:39 PM,  wrote:

> Hi,
>
> Is there a way to measure a BBB's supply voltage from within the Linux OS?
>   I was thinking about connecting one of the VDD_3V3 pins to a analog GPIO
> input and measuring that but I'm not sure if that's a good idea or even
> possible.
>
> Thanks,
>
> Chris
>
> --
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Re: [beagleboard] Re: How Flashing Now Works with Debian

[panos]

Thank you Nelson, everything worked perfectly!
You have been a great help!

On Monday, 14 July 2014 18:50:20 UTC+1, RobertCNelson wrote:
>
> On Mon, Jul 14, 2014 at 12:29 PM,  > 
> wrote: 
> > Hi, 
> > 
> > I am getting as well the "Error: script halting, system unrecognized." 
> when 
> > executing beaglebone-black-eMMC-flasher.sh. 
> > The image I have flashed is from here 
> > http://elinux.org/BeagleBoardDebian#Flasher 
> > 
> https://rcn-ee.net/deb/flasher/wheezy/BBB-eMMC-flasher-debian-7.5-console-armhf-2014-07-06-2gb.img.xz.
>  
>
> > When I check with "LC_ALL=C lsblk -l" the mountpoint "/boot/uboot" is 
> > missing. 
> > 
> > NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT 
> > mmcblk1boot0 179:16 0 1M 1 disk 
> > mmcblk1boot1 179:24 0 1M 1 disk 
> > mmcblk0 179:0 0 7.4G 0 disk 
> > mmcblk1 179:8 0 1.8G 0 disk 
> > mmcblk1p1 179:9 0 96M 0 part 
> > mmcblk1p2 179:10 0 1.7G 0 part / 
> > 
> > Is there anything that I can do? 
> > What I want to do is clone a beaglebone black to multiple others, is 
> > beaglebone-black-eMMC-flasher.sh the best way to do that? 
> > Thanks in advance. 
>
> So in, 2014-07-06 i rewrote a lot of things... 
>
> First, make sure you run: 
>
> cd /opt/scripts/tools/ 
> git pull 
>
> Next open: /boot/uEnv.txt 
>
> Uncomment this line: 
>
> #cmdline=init=/opt/scripts/tools/eMMC/init-eMMC-flasher-v2.sh 
>
> At this point your microSD card is set to flash the eMMC.. so shutdown 
> (sudo halt) and get ready to flash stuff.. 
>
> Regards, 
>
> -- 
> Robert Nelson 
> http://www.rcn-ee.com/ 
>

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[beagleboard] Re: Ubuntu & TouchKit touchscreen driver

[andy . prinfo]

Hi dclap, I am also trying to run OpenCPN on an ARM chip by Tegra in a 
Trimslice computer. I have everything working except the touchscreen. Have 
you had any joy getting yours working?

On Wednesday, 29 September 2010 21:38:14 UTC+2, dclapp wrote:
>
> I am trying to get a Lilliput 7" 669GL Monitor with touchscreen going 
> with OpenCPN and Ubuntu 9.04 on the beagle-board but have not had any 
> luck with the touchscreen. 
>
> Has anyone had any luck with compiling and installing the TouchKit 
> driver for Ubuntu?  Touchkit is the name of the driver when you 
> install on  Windows, so I figured it was the same: 
> http://www.touchkit.com/Drivers.htm. 
>
> I am using Beagleboard C4 and running Ubuntu as build on the 
> elinux.org/BeagleBoardUbuntu web site. 
>
> Do I need to rebuild the kernel with any other flags?  Has anyone been 
> successful at this? 
>
> Thanks!

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[beagleboard] Re: Ethernet communication in BBB

[ignacio . matador]

El miércoles, 16 de julio de 2014 13:59:53 UTC+2, ignacio...@gmail.com 
escribió:
>
> Hello,
>
> I have a beaglebone black and I am looking the way of communicating with a 
> PC.
> Do you know any simple program in ".c" to send data from the BBB to the PC 
> (windows) using the ethernet port? I could not find anything in inernet
>
> Thank you so much
>

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[beagleboard] Measuring a BBB's own supply voltage

[chris . snell]

Hi,

Is there a way to measure a BBB's supply voltage from within the Linux OS? 
  I was thinking about connecting one of the VDD_3V3 pins to a analog GPIO 
input and measuring that but I'm not sure if that's a good idea or even 
possible. 

Thanks,

Chris

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[beagleboard] First time using beagle board-xm

[khan . mohdshahrukh]

i have make a bootable sd card but when i put sd card in beagleboard sd 
card slot the screen is looking white .its not showing any thing .
i press reset button while holding user button but it still shows nothing .
i have make sd card bootable in the following ways i have make two files 
setup_sd and load_sd.
(setup_sd) Inside setup_sd:



#!/bin/sh
# As per instructions:
# http://elinux.org/BeagleBoardBeginners
 
if [ $# -lt 1 ]; then
   echo "example usage: $0 /dev/sdb"
   exit 1
fi
 
DRIVE=$1
 
dd if=/dev/zero of=$DRIVE bs=1024 count=1024
 
SIZE=`fdisk -l $DRIVE | grep Disk | awk '{print $5}'`
 
echo DISK SIZE - $SIZE bytes
 
CYLINDERS=`echo $SIZE/255/63/512 | bc`
 
echo CYLINDERS - $CYLINDERS
 
{
echo ,9,0x0C,*
echo ,,,-
} | sfdisk -D -H 255 -S 63 -C $CYLINDERS $DRIVE
 
mkfs.vfat -F 32 -n "boot" ${DRIVE}1
mke2fs -j -L "rootfs" ${DRIVE}2







now inside load_sd:



#!/bin/sh
# As per instructions:
# http://elinux.org/BeagleBoardBeginners
 
if [ $# -lt 1 ]; then
   echo "example usage: $0 /dev/sdb"
   exit 1
fi
 
DISK=$1
 
if [ -e Angstrom-Beagleboard* -a -e MLO -a -e u-boot* -a -e uImage* -a -e 
modules* ]; then
echo "All files found okay... "
 
echo "Mounting ${DISK}1 and ${DISK}2"
mkdir /mnt/sd1; mount ${DISK}1 /mnt/sd1
mkdir /mnt/sd2; mount ${DISK}2 /mnt/sd2
sleep 2
 
echo "Copying to ${DISK}1 and ${DISK}2"
cp MLO u-boot.bin /mnt/sd1
cp uImage* /mnt/sd1/uImage
tar -xvf Angstrom-Beagleboard-demo-image*.tar.bz2 -C /mnt/sd2
tar -xvf modules-2.6.*.tgz -C /mnt/sd2
 
echo "Unmounting ${DISK}1 and ${DISK}2"
umount ${DISK}1; umount ${DISK}2
rm -rf /mnt/sd1 /mnt/sd2
echo "Done"
 
else
echo "Files missing!"
echo "Downloading required files... this may take some time."
   sleep 2
 
wget 
http://www.angstrom-distribution.org/demo/beagleboard/Angstrom-Beagleboard-demo-image-glibc-ipk-2010.3-beagleboard.rootfs.tar.bz2
wget http://www.angstrom-distribution.org/demo/beagleboard/MLO
wget http://www.angstrom-distribution.org/demo/beagleboard/u-boot.bin
wget 
http://www.angstrom-distribution.org/demo/beagleboard/uImage-2.6.29-r47-beagleboard.bin
wget 
http://www.angstrom-distribution.org/demo/beagleboard/modules-2.6.29-r47-beagleboard.tgz
 
   echo "Finished downloading files.  Simply run "$0 /dev/sdX" again to 
load files to SD card."
fi







in this way i make sd card bootable but my beagle board is not 
working..plzzz help

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Re: [beagleboard] Ethernet communication in BBB

[ignacio . matador]

Hello

Thank you so much

I have developed 2 programs, in #c, which are running in my beaglebone and 
my pc (windows). I would like to integrate some code into these programs to 
be able to send data from my beaglebone to my pc as fast as possible.

These is the reason why i am looking for a simple code which i can modify 
and adapt to my code according to my requirements. Could you help me with 
it? O tell me where can i find any example?

Sorry for disturbing you and thank you so much

El miércoles, 16 de julio de 2014 16:03:08 UTC+2, wharms escribió:
>
>
>
> Am 16.07.2014 13:59, schrieb ignacio...@gmail.com : 
> > Hello, 
> > 
> > I have a beaglebone black and I am looking the way of communicating with 
> a 
> > PC. 
> > Do you know any simple program in ".c" to send data from the BBB to the 
> PC 
> > (windows) using the ethernet port? I could not find anything in inernet 
> > 
>
> hi ignacio, 
> there are many solutions: 
>
> look for "busybox" 
> compile ftp-server and client 
> use it 
>
> a clever one requieres "unix-services for windows" 
> install knfs-server on bbb 
> export desired directory 
> mount on windows 
>
> start sshd 
> copy data via putty from/to windows 
>
> help that helps, 
> re, 
>  wh 
>
>
>

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[beagleboard] C Code to send UDP packets using Ethernet

[msc . a . fernandez]

Hi everyone,

I am new with the Beaglebone black and I would like to make a little 
program in C to send UDP packets using Ethernet. Can someone please tell me 
where I can find some code to do this or to point in the right direction to 
do this?

Thank you for the help

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[beagleboard] No multicast

[Marco]

Hi,
I run the ubuntu-14.04-console-armhf-2014-06-05 prebuild image on my BBB. 
Now I have the problem, that I can't receive multicast telegrams. tcpdump 
shows me that they arrive, but they don't get to my application.
Someone an idea? Thanks!

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Re: [beagleboard] Enable LDO2 on TPS65217C PMIC

[Gerald Coley]

Power button has an internal pullup inside the TPS65217C to the DC in
rail.You do not need the external pullup.

Gerald


On Thu, Jul 17, 2014 at 7:05 AM, Michael Doherty 
wrote:

> I'm trying to use an external button to control power on/off on BBB. I
> currently have a momentary button wired to pwr_btn and pulled up high via
> 3.3V pin. The issue is that 3.3v is not enabled by default in sleep mode. I
> have no problem pressing the button to pull ground and shut down the
> beaglebone, but then when it goes to sleep, 3.3v (LDO2) rail shuts off
> which pulls the pwr_but ground which then immediately triggers power on
> again.
>
> How would I enable LDO2 in sleep mode? I read through the user guild (
> http://www.ti.com/lit/ds/symlink/tps65217c.pdf) and couldn't find any
> answers.
>
> --
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[beagleboard] Enable LDO2 on TPS65217C PMIC

[Michael Doherty]

I'm trying to use an external button to control power on/off on BBB. I 
currently have a momentary button wired to pwr_btn and pulled up high via 
3.3V pin. The issue is that 3.3v is not enabled by default in sleep mode. I 
have no problem pressing the button to pull ground and shut down the 
beaglebone, but then when it goes to sleep, 3.3v (LDO2) rail shuts off 
which pulls the pwr_but ground which then immediately triggers power on 
again.

How would I enable LDO2 in sleep mode? I read through the user guild 
(http://www.ti.com/lit/ds/symlink/tps65217c.pdf) and couldn't find any 
answers.

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[beagleboard] Re: Beaglebone SPI

[manish]

As far as the spec, only spi3 and spi4 are exposed.
Neverthless try the below link.

http://www.brianhensley.net/2012/02/spi-working-on-beagleboard-xm-rev-c.html

or

http://linuxdeveloper.blogspot.sg/2011/10/enabling-spi-on-beagleboard-xm.html

On Wednesday, July 16, 2014 9:38:05 PM UTC+5:30, Geetha Andrew wrote:
>
> I am new to Beaglebone & not too familiar with Linux.
>
> My application requires data to be acquired from a device on SPI & 
> transmit it on LAN.
>
> I am using the preloaded Angstrom OS.  
>
> I have setup the environment for development by precisely following 
>
> http://jkuhlm.bplaced.net/hellobone/
>
> With this platform, I am able to develop application for LAN transmission.
>
> For SPI interface I have followed 
>
> http://elinux.org/BeagleBone_Black_Enable_SPIDEV
>
> I have to use SPI0.  I am able to reach properly upto the step of 
> compiling & running the spidev_test code.  Following are my questions
>
>
>1.Does the preloaded Angstrom has SPI device built in the 
>kernel or should the kernel be rebuilt by including the spidev.c?
>2. Will the gcc libraries compile the SPIdev_test code?  I 
>am getting ‘undefined error for SPI_TX_QUAD’ and many more which I am 
>finding defined in spi.h which is not in gcc include.  Can I simply 
>copy spi.h file into the include directory and compile?
>3.With reference to the below segment in the .dts file, 
>sclk is mentioned as input.  However, I would like BBB to be master to 
>generate clock for the external device.  In such case, should the 
>change the value to 0x10?
>
> 4.  fragment@0 {
>
> 5.  target = <&am33xx_pinmux>;
>
> 6.  __overlay__ {
>
> 7.  spi0_pins_s0: spi0_pins_s0 {
>
> 8.  pinctrl-single,pins = <
>
> 9.0x150 0x30  /* spi0_sclk, INPUT_PULLUP | MODE0 */
>
> 10.0x154 0x30  /* spi0_d0, INPUT_PULLUP | MODE0 */
>
> 11.0x158 0x10  /* spi0_d1, OUTPUT_PULLUP | MODE0 */
>
> 12.0x15c 0x10  /* spi0_cs0, OUTPUT_PULLUP | MODE0 */
>
> 13.  >;
>
> 14.  };
>
> 15.  };
>
> 16.  };
>
> 4.  The pin mapping file shows that the SPI pins are mapped to 84,…..  How 
> to verify that it has been correctly mapped to the processor pin number.
>
>  Request help for these trivial questions. 
>
>  Thanks 
>
>
>
>  
>
>  
>

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[beagleboard] Re: Can't find connman directory

[cl]

Alfredo Muniz  wrote:
> [-- text/plain, encoding quoted-printable, charset: UTF-8, 20 lines --]
> 
> Jacob,
> 
> On Mon, Jul 14, 2014 at 6:04 PM, Jacob Aviña  
> wrote: 
> 
> > but there is no connman directory
> 
> 
> Perhaps the directory is somewhere else? Do cd /; find * | grep connman to
> see if it's somewhere else
> 
'find' can do it all:-

find / -name conman

It'll take a fair old time to do it though.

-- 
Chris Green
·

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[beagleboard] Re: question about uart

[jstampfl]

Go to the Adafruit forum and search for "Ultimate GPS, C programming

example to connect the Adafruit GPS to the BBB

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[beagleboard] question about uart

[chart007abc]

*i want to combine my beaglebone black with a GPS module .i am using 
the prebuilt-images from  ti-sdk-am335x-evm-07.00.00.00 . I want to 
activate UART1 on my board to get GPS data. i am very new at linux.so i 
need some simple examples for using uart device driver.i also have some 
questions.*

*and i find there are many files in /dev,such as tty1,ttyS1,ttyOo(there is 
no ttyO1). i wonder which one is for UART1.*

*also   root@am335x-evm:/dev# cat /proc/tty/driver/serial*

*serinfo:1.0 driver revision:*

*0: uart:unknown port : irq:0*

*1: uart:unknown port : irq:0*

*2: uart:unknown port : irq:0*

*3: uart:unknown port : irq:0*

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