Re: [beagleboard] rtl8192cu_beagebone, wpa-ssid not working

[Dave Hylands]

Hi Jacob,


On Wed, Nov 13, 2013 at 6:16 PM, Jacob Ole Juul Kolding 
wrote:
>
>
> Den 14/11/2013 01.21 skrev "Dave Hylands" :
>
>
> >
> > Hi Jacob,
> >
> >
> > On Wed, Nov 13, 2013 at 12:47 PM, Jacob Ole Juul Kolding <
dac...@gmail.com> wrote:
> >>
> >> Hello Beagles!
> >>
> >> After I got my rtl8192cu_beaglebone module to compile, next step is
> >> to have wlan0 up at boot time.
> >>
> >> I have /etc/network/interfaces
> >> like this:
> >>
> >> auto wlan0
> >> iface wlan0 inet dhcp
> >> wpa-ssid 
> >
> >
> > I installed ubuntu on my BBB (not sure that makes a difference, I just
figured I'd state it just in case). The rtl8192cu driver that came with
ubuntu seemed to work fine out of the box.
> >
>
> I had a problem with the driver in kernel 3.12. That's why I compiled my
own.
>
> The network I'm trying to join doesn't have a password so didn't add that
option. Don't know if it has to be
> there anyway?

Well if there's no password, then you aren't using wpa. Try this instead (I
haven't tested this myself yet)

auto wlan0
iface wlan0 inet dhcp
  wireless-essid 

--
Dave Hylands
Shuswap, BC, Canada
http://www.davehylands.com

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[beagleboard] Help with Device Tree - possible bug in am33xx.dtsi

[AndrewTaneGlen]

Using the new 3.12 mainline kernel and Robert C Nelson's Ubuntu rootfs I've 
managed to get both CAN devices working. However, it get a warning when the 
device boots:

c_can_platform 481d.d_can: can't request region for resource [mem 
0x44e10644-0x44e10647]

What this is referring to is the fact that in the device tree definitions 
for each of the two can devices, the same register address is being 
requested. They are defined in 
'am33xx.dtsi'
 
as follows:

dcan0: d_can@481cc000 {
compatible = "bosch,d_can";
ti,hwmods = "d_can0";
reg = <0x481cc000 0x2000
0x44e10644 0x4>;
interrupts = <52>;
status = "disabled";
};

dcan1: d_can@481d {
compatible = "bosch,d_can";
ti,hwmods = "d_can1";
reg = <0x481d 0x2000
0x44e10644 0x4>;
interrupts = <55>;
status = "disabled";
};

For both items the address '0x44e10644 0x4', referring to the register 
'dcan_raminit' 
(Pg 793 of spruh73h.pdf ), 
is being reserved for use. The new devicetree interpreter considers any 
overlap between device register memory mappings as a problem, hence the 
message seen on boot.

The register 'dcan_raminit' is in fact used by both can devices, so it does 
make sense for both to have access to it. It appears however, that this 
register is only used in the d_can driver which does not appear to be in 
use with this latest kernel release. In any case, both device work 
flawlessly (as far as I can tell) regardless of the error message.

I thought I'd have a go at tidying this part of the 
'am33xx.dtsi'
 
devicetree file up a bit to get rid of this message - and this is where my 
question comes in. I thought I could make a single parent node for d_can 
with this shared register defined at the top level, and then add the two 
can devices to it as child nodes. I came up with something like this:

dcan {
#address-cells = <1>;
#size-cells = <1>;
reg = <0x44e10644 0x4>;

dcan0: d_can@481cc000 {
compatible = "bosch,d_can";
ti,hwmods = "d_can0";
reg = <0x481cc000 0x2000>;
interrupts = <52>;
status = "disabled";
};

dcan1: d_can@481d {
compatible = "bosch,d_can";
ti,hwmods = "d_can1";
reg = <0x481d 0x2000>;
interrupts = <55>;
status = "disabled";
};
};

I tried various iterations along this line (and modified the 
am335x-boneblack.dts
 file 
with the corresponding 'status = 'okay' entries for these devices), all of 
which would compile fine, and the dvice would boot with no error messages, 
but for whatever reason the devices would never show up as they had 
previously.

I was wonder if anyone with a better understanding of devicetree syntax 
could suggest the correct structure for the parent/child nodes I am trying 
to create.

Any help or suggestions would be greatly appreciated.


Regards,
Andrew Glen.

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Re: [beagleboard] Re: opkg update causes BBB to corrupt OS

[Wilfredo Nieves]

Hi Adam
If you hit ctrl+alt+f1 it will bring up a console, then just enter passwd
and enter a password. Then enter systemctl restart gdm.service which brings
the login screen back up. Select other, user=root and password=pass you
entered.
That should get you logged in as root.

-Wil
On Nov 14, 2013 1:44 PM, "Adam Pasternak"  wrote:

> After rebooting a few times, now the B^3 boots to a logon screen giving me
> three choices of login accounts:
>
> mpd
> xuser
> Other..
>
> I cannot log in to the Beaglebone Black as any of these users, because the
> user password is unknown.  And who is "mpd" and "xuser"  anyway?
>
> On Thursday, November 14, 2013 3:26:33 PM UTC-5, Adam Pasternak wrote:
>>
>> I attempted to install updates to support the rlt8192cu chipset for a
>> wireless NIC to use with my BBB. Following Circuitco's own website and
>> tutorial  at   this URL: http://elinux.org/Beagleboard:WiFi
>>
>> I followed the steps, and got to the command  *opkg -t /home/root/tmp
>> upgrade*Seeing this would take a long time, I stepped away from the
>> monitor for an hour and when I came back, the terminal reported that the
>> update procedure had run into issues with no more space remaining on the
>> mounted drive.   When I restarted the B^3,   the screen appears frozen and
>> unresponsive to mouse/keyboard with the message "Could not update
>> ICEauthority file /var/lib/gdm/.ICEauthority"
>>
>> Did I just brick my B^3 ?
>>
>> If so, can anyone tell me (a)  how to restore the original image  and (b)
>>  is this update at the above URL even possible now, because it seems that
>> there isn't even enough space on the onboard memory to add any support for
>> wireless cards?
>>
>>
>>  --
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Re: [beagleboard] Angstrom support, web site

[Jay Nugent]

Greetings,
   Be aware folks, that you *MUST* place the WWW hostname in front of the 
domain name as the domain and WWW hosty have DIFFERENT ip addresses.


jjn@eMach32:~$ host angstrom-distribution.org
angstrom-distribution.org has address 188.40.83.200

jjn@eMach32:~$ host www.angstrom-distribution.org
www.angstrom-distribution.org has address 140.211.169.179

   The domain routes into Frankfurt and the WWW host is located somewhere 
in or near Seattle.



  --- Jay Nugent  WB8TKL
  UNIX/Linux System Administration instructor
  Washtenaw Community College



On Thu, 14 Nov 2013, David Lambert wrote:


http://www.angstrom-distribution.org/

Works for me - thanks for the interim.


On 13-11-14 03:23 PM, Don deJuan wrote:

 On 11/14/2013 12:49 PM, Bill Traynor wrote:
>  OK, it's sort of back.  We're working to make it fancy again. Stay 
>  tuned.
> 
> 
>  On Wed, Nov 13, 2013 at 2:51 PM, Bill Traynor >  > wrote:
> 
>  We're working to move the site to OSUOSL.  Just juggling a lot of

>  balls at the moment, but it'll be back up soon.
> 
> 
>  On Wed, Nov 13, 2013 at 2:42 PM, Don deJuan

>  mailto:donjuans...@gmail.com>> wrote:
> 
>  On 11/13/2013 07:51 AM, Richard Cook wrote:
> > 
> >  Who owns the Angstrom distro?

> >  --
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>  Pretty amazing the site is still dead.
> 
>  If you guys need a good host and admin, feel free to contact

>  me off list.
> 
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 Just so you know it is still down.
 http://isup.me/http://angstrom-distribution.org/

 When I try and view in FF the site does not time out or anything it just
 hangs. If you hit
 http://narcissus.angstrom-distribution.org/
 It actually gives a server not found.
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[beagleboard] Re: opkg update causes BBB to corrupt OS

[Nick M]

>
> If so, can anyone tell me (a)  how to restore the original image  and (b) 
>  is this update at the above URL even possible now, because it seems that 
> there isn't even enough space on the onboard memory to add any support for 
> wireless cards? 
>
>  
(a) you can load the OS image onto an SD card and flash the eMMC as 
described here, 
http://learn.adafruit.com/beaglebone-black-installing-operating-systems/overview

(b) you can format said SD card after you restore the original image and 
use it for extra storage on the B3, as shown here, 
http://elinux.org/Beagleboard:Expanding_File_System_Partition_On_A_microSD

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[beagleboard] Faster Boot

[Nick M]

How can I reduce the number boot operations so that the board will start 
faster? Also I want to eliminate the touchscreen calibration on bootup 
because I am using an HDMI monitor.

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[beagleboard] Prevent Screen Sleeping

[Nick M]

I am going to be using Angstrom Beaglebone Black with an LCD cape. Is there 
any way to prevent the screen from sleeping and does that differ from HDMI 
sleep?

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Re: [beagleboard] Re: I2C Devices on Beagleboard-xM

[Robert Nelson]

On Thu, Nov 14, 2013 at 3:52 PM, porkupan  wrote:
> OK, the I2C Device Interface was not enabled by default in the kernel
> config.  This topic is completed.

Ahh crap, thanks for the hint.. That should have been enabled by default..

https://github.com/RobertCNelson/armv7-multiplatform/commit/7e470553b5f40da60b1d51cd18ffcb3370247a6a

Regards,

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

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Re: [beagleboard] Re: Is it possible to run BBB off cheap rechargeable batteries?

[Paul Tan]

I've been using this part:

http://www.digikey.com/product-search/en?x=11&y=14&lang=en&site=us&KeyWords=811-2196-5-ND

It is a switching power module pin compatible with the 7805, but much more 
efficient.  We use it on our robot 
http://exadler.myshopify.com/products/orbit-robot-assembled

We power the Beaglebone and the motors off 6 NiMH AA rechargeable batteries 
and the robot lasts for about 4 hours.  I have a circuit board layout with 
a toggle switch that I could share if you wanted it, but it is fairly 
straightforward and you could wire it up without a PCB easily.

Paul Tan.



On Wednesday, November 13, 2013 10:03:05 AM UTC-5, rowland@gmail.com 
wrote:
>
> I agreed there are better solutions available and that is really what I am 
> asking... what are those better solutions? For what I am looking to do is 
> having everything needed to run the BBB off battery for as cheap as 
> possible. We are designing a hardware setup for students to use and they 
> have to be able to buy all the components for as cheap as possible. The 
> problem with Lipo (from what I have seen) is that the chargers are the 
> expensive part.
>
> Here is where I am at right now. Need at least 9V for running motors as 
> well as the BBB.
> 3-cell Lipo = $9 from 
> HobbyKing
> Lipo charger = $12 from 
> HobbyKing
> Lipo charger power supply = $8 from 
> Amazon
> Voltage Reg, diode, caps, wires etc. = $3 from DigitKey
>
> This might be the best solution. But my thought was students might already 
> have AA battery chargers at home. 
>
> Thoughts?
>
> Also, can you point me to a better circuit design that doesn't use the 
> 7805?
>
> -Rowland
>
>
> On Monday, November 11, 2013 4:22:39 PM UTC-5, Dieter Wirz wrote:
>>
>> Ron is perfectly right! 
>> And where do you get cheap rechargeable batteries? 
>> LIPO prices are going down 
>> alcaline prices are going up 
>>
>> Do you really want to invest time and money in last millennium 
>> alcaline technology? 
>>
>> 7805? If you connect 9v to an 7805 about 40% of the power is converted 
>> to heat. There are much better solutions available. 
>>
>> BTW @Ron: What buck/boost regulators are you using. Maybe you can 
>> provide some hints to the community... I have the ADP sitting on 
>> my Desktop, but I did not find the time to solder something 
>> together. 
>>
>

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[beagleboard] Re: How the BeagleBone Black (Angstrom powered) synchronize his clock ?

[Paul Tan]

Hmm... interesting.  I should try to look at the scripts and decipher it 
sometime.

I didn't use Derek Molloy's techniques, but I've been using the one liner 
connman

http://exadler.blogspot.ca/2013/11/setting-correct-datetime-on-beaglebone.html

Which works wheneven connman detects a network connection (basically it is 
effectively run on an ifup on an interface).  This seems to work reliably 
on Angstrom builds.

Paul Tan.
http://exadler.myshopify.com/




On Sunday, November 10, 2013 5:41:19 PM UTC-5, tee@gmail.com wrote:
>
> Hello,
>
> I'm trying to understand how the BeagleBone Black synchronize his clock.
>
> I have read the Derek Molloy blog (
> http://derekmolloy.ie/automatically-setting-the-beaglebone-black-time-using-ntp/)
>  
> but I want to understand the solution provided by the Angstrom distribution.
>
> My BeagleBone clock is correctly set up when I start it with the Wifi USB 
> key. It's set up without any specific configuration. For example I don't 
> change the /etc/default/ntpdate file so the NTPSERVERS is still empty.
> My interpretation of the /usr/bin/ntpdate-sync script is that it exit 
> without calling nptdate if the NTPSERVERS is empty:
>
> if [ "$NTPSERVERS" = "" ] ; then
> if [ "$METHOD" = "" -a "$1" != "silent" ] ; then
> echo "Please set NTPSERVERS in /etc/default/ntpdate"
> exit 1
> else
> exit 0
> fi
> fi
>
> Does it mean the BeagleBone clock is another way ? or does I'm wrong ?
>
>

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[beagleboard] Re: I2C Devices on Beagleboard-xM

[porkupan]

OK, the *I2C Device Interface* was not enabled by default in the kernel 
config.  This topic is completed.

On Tuesday, November 12, 2013 1:53:51 PM UTC-5, porkupan wrote:
>
> Hello,
>
> How do we enable the I2C devices (/dev/i2c-1, -2, -3) on Beagleboard-xM 
> (kernel 3.11)?  Do we need to do something specific to load the i2c driver?
>
> Thanks!
>
>

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[beagleboard] Re: Serial communication problem

[hexblade83]

I am having similar problems with the BBB(Angstrom image). I have installed 
the recommended serial cape from circuitco. I have gone through many 
tutorials on getting the the cape addressed properly, but all of the 
efforts have been to no avail. I am trying to get the BBB to communicate 
with a Juniper NS5GT through minicom. I have minicom online but it is 
showing nothing from the NS5GT. I am using a serial DB-9 cable, not a usb 
to serial converter. I am trying to keep this board as low power as 
possible. Thanks for the help.

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[beagleboard] Re: eGalax Touch Screen driver

[dericpr]

Hi, I'm looking to do this, what Guide did you follow?  Was this for the 
Angstrom Distro?  

On Monday, 12 August 2013 06:07:35 UTC-4, poco...@gmail.com wrote:
>
> Today I recompile kernel and enable touchscreen for egalax by make 
> menuconfig. And it works well.
> Follow this guide to recompile kernel and I did those steps:
>
> . /home/core/.oe/environment-angstromv2012.05
> export MACHINE=beagleboard
> ./oebb.sh config beagbone
>
> MACHINE=beaglebone ./oebb.sh bitbake virtual/kernel -c menuconfig
>
>
> On Monday, 27 December 2010 22:21:48 UTC+7, MaNu wrote:
>>
>> Hi, 
>>
>> I bought a Lilliput 669GL monitor with touch screen via USB (eGalax). 
>> It works ok, at 800x480, but for the hdmi cable: bad quality... not 
>> well shielded. 
>>
>> Took few days trying to install the touch screen driver in Ubuntu 
>> 10.10 but it's resulting very difficult. The issue is that the driver 
>> is only compatible for distributions which used xorg.conf. (Ubuntu 8 
>> and previously I think). The script that installs the driver doesn't 
>> work if doesn't find /etc/X11/xorg.conf. 
>>
>> Googling I found one way to create this file: 
>>
>> - enter in console mode 
>> - stop gdm 
>> - Xorg -configure 
>>
>> The command returns a list of video drivers a later: 
>>
>> No devices to configure. Configuration failed. 
>> dxxSigGiveUp: Closing Log 
>>
>> So file xorg.conf is not created... 
>>
>> I've also tried to create a blank file and to use one template found 
>> in '/usr/share/doc..' In both cases I got install the driver but once 
>> I reboot the system it freezes up in: 
>>
>> [ OK ]bling additional executable binary formats binfmt-support 
>>
>> and it doesn't load X11... 
>>
>> Any suggest? 
>>
>> Thank you very much. 
>>
>>

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Re: [beagleboard] Re: I2C and Invensense MPU6050 Driver

[Mark A. Yoder]

It looks like someone has done a nice port to Andriod[1].  How hard would 
it be to port it to Angstrom?

--Mark

[1] 
https://android.googlesource.com/kernel/tegra/+/74f15aa73e1d999368e3a8287cdb85718e987d48/drivers/staging/iio/imu/mpu/README

On Wednesday, November 13, 2013 10:30:07 PM UTC-5, clarkbr...@gmail.com 
wrote:
>
> Mark,
> Near as I can tell, no one has done better than just file i/o via 
> /dev/i2c/...  This works, but doesn't seem to expose or take advantage of 
> the Invensense kernel driver functionality.  Plus it seems to be very 
> slow.  Jason Kridner was tackling it a couple weeks ago, but didn't report 
> any success.  I haven't made any progress either.
> Seems we are stuck. I wish someone could figure out how to ping the author 
> at Invensense. I tried writing via thier support web page but didn't get a 
> reply.
> Clark
> On Tuesday, November 12, 2013 12:57:54 PM UTC-8, Mark A. Yoder wrote:
>
>> Did anyone every get the inv-mpu6050 kernel driver to work?  I have the 
>> device on the i2c bus and I can read and write registers using 
>> *i2cset/i2cget*, but *modprobe inv-mpu605* doesn't make anything appear.
>>
>> --Mark
>>
>> On Saturday, November 2, 2013 11:51:04 AM UTC-4, clarkbr...@gmail.comwrote:
>>>
>>> Jason,
>>> I apologize for taking so long to answer. It wasn't quick to figure out 
>>> which breakout board we had with the MPU6050 on it.  It is apparently a 
>>> Kootek® 
>>> Arduino GY-521 MPU-6050 Module from Amazon.
>>> Itis wired:
>>>
>>> P9_1->Gnd 
>>>
>>> P9_3->VCC
>>>
>>> P9_19 ->SCL
>>>
>>> P9_20 -> SDA
>>>
>>> Your P9_19 SCL and P9_20 SDA should be fine.
>>>
>>> Later posts suggest you can talk to you device and have shown us via W 
>>> Smith  the way to straighten out which bus is which.
>>>
>>> Clark
>>> On Thursday, October 31, 2013 1:32:46 PM UTC-7, Jason Kridner wrote:
>>>
 On Tue, Oct 29, 2013 at 2:19 PM, Jason Kridner  
 wrote: 
 > 
 > On Thu, Oct 17, 2013 at 6:12 PM,   wrote: 
 > > AIW: 
 > > I went back thru the adafruit library and didn't find anything 
 specific on 
 > > I2C, although it is listed as a topic.  I have been looking at 
 their github 
 > > adafruit-beaglebone-io-python library. I also found and looked thru 
 PyBBIO. 
 > > Even tho I'm not using Python, I can see the access mechanisms that 
 they 
 > > use. 
 > > I can use the MPU6050 device ok enough just reading via 
 /dev/i2c/i2c-x, but 
 > > that is too slow. 
 > > I'm trying to figure out how to invoke and use the inv-mpu6050 
 driver and 
 > > adafruit doesn't use that. 
 > > Thx -- Clark 
 > > 
 > > On Thursday, October 17, 2013 9:47:44 AM UTC-7, AIW wrote: 
 > >> 
 > >> Some good info on I2C tools at http://www.acmesystems.it/i2c. 
 > >> 
 > >> Python and the adafruit BBIO I2C library makes it very easy to use 
 I2C on 
 > >> Beaglebone Black as well. Python import smbus is fairly easy to 
 use too. 
 > >> Some examples of use is available in the code I provide for my 
 radio project 
 > >> herewww.aiwindustries.com. 
 > >> 
 > >> Not trying to sell the product, but I know that the I2C function 
 was 
 > >> giving me some issues so I'm just trying to help the community. 
 Python code 
 > >> is available to download and look at usage so feel free. 
 > >> 
 > >> On Tuesday, October 15, 2013 5:02:59 PM UTC-5, 
 clarkbr...@gmail.com wrote: 
 > >>> 
 > >>> We are using the Invensense MPU6050 IMU on I2C with Beaglebone 
 Black 
 > >>> (Angstrom 3.8.13). We can use I2C-tools and file I/O thru 
 /dev/i2c but the 
 > >>> read speed is disappointingly slow.  We only read the 3x gyros 
 and 3x accels 
 > >>> (each one byte at a time plus the 2 byte temperature reading) and 
 it takes 
 > >>> ~2msecs.  My estimate of the I2C bus cycles for a block read 
 suggests this 
 > >>> should take ~160 bus cycles or .38msec on a 400MHz I2C bus. 
 > 
 > You are running at 400kHz, not 400MHz, right?  I2C doesn't do 400MHz. 
 > 
 > >>> 
 > >>> The distribution includes the Invensense driver inv-mpu6050.ko 
 but there 
 > >>> is no indication that reading through /dev/i2c invokes it.  This 
 is a very 
 > >>> popular IMU and Invensense widely distributes the driver over 
 many Linux 
 > >>> platforms.  The driver source includes “successful installation 
 will create 
 > >>> two directories under /sys/bus/iio/devices” and lists the files 
 there (aka 
 > >>> functions). I can never get these to show up. 
 > >>> 
 > >>> I can “insmod 
 > >>> 
 /lib/modules/3.8.13/kernel/drivers/iio/imu/inv_mpu6050/inv-mpu6050.ko” and 
 > >>> “echo inv-mpu6050 0x68 > 
 /sys/class/i2c-adapter/i2c-1/new_device”. This 
 > >>> causes a new directory named 1-0068 to show in 
 > >>> /sys/class/i2c-adapter/i2c-1with entries like n

Re: [beagleboard] Angstrom support, web site

[David Lambert]

http://www.angstrom-distribution.org/

Works for me - thanks for the interim.


On 13-11-14 03:23 PM, Don deJuan wrote:

On 11/14/2013 12:49 PM, Bill Traynor wrote:

OK, it's sort of back.  We're working to make it fancy again. Stay tuned.


On Wed, Nov 13, 2013 at 2:51 PM, Bill Traynor > wrote:


We're working to move the site to OSUOSL.  Just juggling a lot of
balls at the moment, but it'll be back up soon.


On Wed, Nov 13, 2013 at 2:42 PM, Don deJuan
mailto:donjuans...@gmail.com>> wrote:

On 11/13/2013 07:51 AM, Richard Cook wrote:
>
> Who owns the Angstrom distro?
> --
> For more options, visit http://beagleboard.org/discuss
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Pretty amazing the site is still dead.

If you guys need a good host and admin, feel free to contact
me off list.

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Just so you know it is still down.
http://isup.me/http://angstrom-distribution.org/

When I try and view in FF the site does not time out or anything it 
just hangs. If you hit

http://narcissus.angstrom-distribution.org/
It actually gives a server not found.
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Re: [beagleboard] Angstrom support, web site

[Don deJuan]

On 11/14/2013 12:49 PM, Bill Traynor wrote:
> OK, it's sort of back.  We're working to make it fancy again. Stay tuned.
>
>
> On Wed, Nov 13, 2013 at 2:51 PM, Bill Traynor  > wrote:
>
> We're working to move the site to OSUOSL.  Just juggling a lot of
> balls at the moment, but it'll be back up soon.
>
>
> On Wed, Nov 13, 2013 at 2:42 PM, Don deJuan  > wrote:
>
> On 11/13/2013 07:51 AM, Richard Cook wrote:
> >
> > Who owns the Angstrom distro?
> > --
> > 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/groups/opt_out.
> Pretty amazing the site is still dead.
>
> If you guys need a good host and admin, feel free to contact
> me off list.
>
> --
> For more options, visit http://beagleboard.org/discuss
> ---
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>
>
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Just so you know it is still down.
http://isup.me/http://angstrom-distribution.org/

When I try and view in FF the site does not time out or anything it just
hangs. If you hit
http://narcissus.angstrom-distribution.org/
It actually gives a server not found.

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[beagleboard] Re: I2C Devices on Beagleboard-xM

[porkupan]

Just built and installed kernel v. 3.12.  Still no /dev/i2c-X!

The kernel seems to recognize the i2c devices, but does it load the i2c 
drivers?  The drivers are enabled in the kernel config...

root@arm:~# dmesg | grep i2c
[1.942260] omap_i2c i2c.10: bus 0 rev4.4 at 2600 kHz
[1.942840] omap_i2c i2c.11: bus 1 rev4.4 at 400 kHz
[1.943878] omap_i2c i2c.12: bus 2 rev4.4 at 100 kHz



On Tuesday, November 12, 2013 1:53:51 PM UTC-5, porkupan wrote:
>
> Hello,
>
> How do we enable the I2C devices (/dev/i2c-1, -2, -3) on Beagleboard-xM 
> (kernel 3.11)?  Do we need to do something specific to load the i2c driver?
>
> Thanks!
>
>

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Re: [beagleboard] Angstrom support, web site

[Bill Traynor]

OK, it's sort of back.  We're working to make it fancy again. Stay tuned.


On Wed, Nov 13, 2013 at 2:51 PM, Bill Traynor  wrote:

> We're working to move the site to OSUOSL.  Just juggling a lot of balls at
> the moment, but it'll be back up soon.
>
>
> On Wed, Nov 13, 2013 at 2:42 PM, Don deJuan  wrote:
>
>> On 11/13/2013 07:51 AM, Richard Cook wrote:
>> >
>> > Who owns the Angstrom distro?
>> > --
>> > 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/groups/opt_out.
>> Pretty amazing the site is still dead.
>>
>> If you guys need a good host and admin, feel free to contact me off list.
>>
>> --
>> For more options, visit http://beagleboard.org/discuss
>> ---
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>
>

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[beagleboard] Re: opkg update causes BBB to corrupt OS

[Adam Pasternak]

After rebooting a few times, now the B^3 boots to a logon screen giving me 
three choices of login accounts:

mpd
xuser
Other..

I cannot log in to the Beaglebone Black as any of these users, because the 
user password is unknown.  And who is "mpd" and "xuser"  anyway?   

On Thursday, November 14, 2013 3:26:33 PM UTC-5, Adam Pasternak wrote:
>
> I attempted to install updates to support the rlt8192cu chipset for a 
> wireless NIC to use with my BBB. Following Circuitco's own website and 
> tutorial  at   this URL: http://elinux.org/Beagleboard:WiFi
>
> I followed the steps, and got to the command  *opkg -t /home/root/tmp 
> upgrade*Seeing this would take a long time, I stepped away from the 
> monitor for an hour and when I came back, the terminal reported that the 
> update procedure had run into issues with no more space remaining on the 
> mounted drive.   When I restarted the B^3,   the screen appears frozen and 
> unresponsive to mouse/keyboard with the message "Could not update 
> ICEauthority file /var/lib/gdm/.ICEauthority" 
>
> Did I just brick my B^3 ?  
>
> If so, can anyone tell me (a)  how to restore the original image  and (b) 
>  is this update at the above URL even possible now, because it seems that 
> there isn't even enough space on the onboard memory to add any support for 
> wireless cards? 
>
>
>

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[beagleboard] opkg update causes BBB to corrupt OS

[Adam Pasternak]

I attempted to install updates to support the rlt8192cu chipset for a 
wireless NIC to use with my BBB. Following Circuitco's own website and 
tutorial  at   this URL: http://elinux.org/Beagleboard:WiFi

I followed the steps, and got to the command  *opkg -t /home/root/tmp 
upgrade*Seeing this would take a long time, I stepped away from the 
monitor for an hour and when I came back, the terminal reported that the 
update procedure had run into issues with no more space remaining on the 
mounted drive.   When I restarted the B^3,   the screen appears frozen and 
unresponsive to mouse/keyboard with the message "Could not update 
ICEauthority file /var/lib/gdm/.ICEauthority" 

Did I just brick my B^3 ?  

If so, can anyone tell me (a)  how to restore the original image  and (b) 
 is this update at the above URL even possible now, because it seems that 
there isn't even enough space on the onboard memory to add any support for 
wireless cards? 


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[beagleboard] Re: linux 3.8 PWM guide?

[lmmarti]

what did you do to get it to work on the new kernel? did you simply follow 
the steps here:

  modprobe pwm_test 
  echo am33xx_pwm > /sys/devices/bone_capemgr.9/slots 
  echo bone_pwm_P9_14 > /sys/devices/bone_capemgr.9/slots 
  echo 500 > /sys/devices/ocp.2/pwm_test_P9_14.*/period 
  echo 250 > /sys/devices/ocp.2/pwm_test_P9_14.*/duty 

?



On Wednesday, October 30, 2013 5:39:22 PM UTC-7, mic...@bondoandersen.dk 
wrote:
>
> Just a short comment:
>  
> Using Beagleboard bone, and ubuntu 3.8 with kernel:
> -  Linux ubuntu-armhf 3.8.13-bone28: pwm IS working
> -  Linux ubuntu-armhf 3.8.13-bone20: pwm is NOT working
>  
> Probably because the driver (pwm_test.ko) is not included
>  
> - MBA
>  
>

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Re: [beagleboard] Re: linux 3.8 PWM guide?

[lmmarti]

Was this using Ubuntu?

On Thursday, October 31, 2013 3:28:55 AM UTC-7, Giuseppe Iellamo wrote:
>
> Just my two cent,
>
> after some struggling with the eQep support
>
> I'm currently using BBB with 3.8.13-bone28 xenomai patched and both of PWM 
> and encoder reading are working well.
>
>
>
> Il giorno giovedì 31 ottobre 2013 01:44:33 UTC+1, RobertCNelson ha scritto:
>>
>> On Wed, Oct 30, 2013 at 7:39 PM,   wrote: 
>> > Just a short comment: 
>> > 
>> > Using Beagleboard bone, and ubuntu 3.8 with kernel: 
>> > -  Linux ubuntu-armhf 3.8.13-bone28: pwm IS working 
>> > -  Linux ubuntu-armhf 3.8.13-bone20: pwm is NOT working 
>>
>> and for some reason, users seem to not want to upgrade from bone20 to 
>> bone28... Not sure why. ;) 
>>
>> Regards, 
>>
>> -- 
>> Robert Nelson 
>> http://www.rcn-ee.com/ 
>>
>

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[beagleboard] Re: CAUTION: musb: Babble Interrupt Occurred

[Philippe Laurent]

Bummer, despite all of the research, the musb: Babble Interrrupt issue 
continues to plague. In the hopes that there's a hardware dev out there 
listening. The board I'm using is A5C.

On Saturday, August 31, 2013 11:42:09 AM UTC-4, jez...@gmail.com wrote:
>
> I'm using my Beaglebone Black with a USB temperature sensor. It works very 
> well, however I noticed monitoring stopped last night after roughly 35 days 
> uptime. This morning I looked more closely into the log file and noticed:
>
> kernel: [2892926.929555] CAUTION: musb: Babble Interrupt Occurred
>
> I wasn't able to successfully reset the USB device and before I was able 
> to restart the BBB stopped responding. I power-cycled it and it was back to 
> normal again. Any ideas what caused this kernel message?
>

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[beagleboard] Re: Linux USB gadget with 2 usable ports

[felix . w . baumann]

Hi Konrads,

have you succeeded in your first part (connecting the bbb as a usb-mass 
storage device)? If so, could you please tell me how you did it? Thanks.

Regards
 Felix

On Thursday, November 14, 2013 3:54:30 PM UTC+1, Konrads Smelkovs wrote:
>
> Hello,
>
> I want to build a device which exposes one USB port as a mass storage 
> device to the computer plugged into it while the other can still be used to 
> accept usb mass storage.
> Linux USB gadget API can be used for the former purpose, but it requires 
> direct PHY connection (and not via USB hub). Can BeagleBone Black be used 
> for this purpose or there are some HW limitations?
>

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[beagleboard] GPIO button in GTK+2.0 GUI

[register . newbiesss]

Anyone know how to access the GPIO pin in a high level language, such as C 
language, GUI button in GTK+2.0?

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[beagleboard] Re: Ethernet LED constantly on and it doesn't boot

[felix . w . baumann]

Hi Dominik,

my BBB does something similar whenever I try to boot with the SD card 
inserted. I have to remove the SD card and insert it later on, then it it 
will start.

Regards
 Felix


On Tuesday, November 12, 2013 6:46:10 AM UTC+1, Dominik Fretz wrote:
>
> Hey,
>
> i was playing again with my BBB and after I disconnected my power supply 
> and reconnected it, the BBB doesn't start anymore.
>
> The green LED of the Ethernet port is constantly on, even if no network 
> cable is connected as soon as power is established. 
> The 4 user leds light up one after the other, den turn of. Followed by a 
> quick burst of all of them, then the 3rd one is constantly on.
>
> The BBB doesn't show up in the hardware list (ubuntu) if I connect it 
> through USB
>
>
> Any clue? Is my board dead?
>
> Regards,
> Dominik
>

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[beagleboard] GTK+2.0 GUI GPIO Control

[register . newbiesss]

Hi,
 
Anyone know how to access the GPIO pin in a high level language? Such as C 
language with ON/OFF button designed with GTK+ GUI.
 
Regards,
BBB User

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Re: [beagleboard] Installing ubuntu 13.04 server

[hvn052]

Op donderdag 14 november 2013 15:36:42 UTC+1 schreef RobertCNelson:
>
> On Thu, Nov 14, 2013 at 2:20 AM,  > wrote: 
> > Op woensdag 13 november 2013 19:05:45 UTC+1 schreef RobertCNelson: 
> >> 
> >> > Ok, I have the cursor now. But graphical response is extremely slow. 
> Any 
> >> > solution for that ? 
> >> 
> >> Turns out it's only running at 600Mhz right now, I just pushed a patch 
> >> to fix it, and re-enable the 800Mhz/1Ghz options.. 
> >> 
> >> 
> >> 
> https://github.com/RobertCNelson/armv7-multiplatform/commit/4f4725a83ad17ad11ec024a739f11ecd6a9cd597
>  
> >> 
> >> a fixed kernel should hit the repos later today.. 
> > 
> > 
> > I got an update for libprocps0 and procps, not linux-image (as kernel on 
> > Ubuntu) but after reboot I don't see a speed improvement. LXDE even 
> seems 
> > slower than before. Or am I missing something ? 
>
> It's now out.. Run this to upgrade... 
>
> wget http://rcn-ee.net/deb/raring-armhf/v3.12.0-armv7-x8/install-me.sh 
> sudo /bin/bash install-me.sh 
>

One other thing that differs much from 12.04 is that the SDcard light does 
not flash when it's working. So right now I can't tell what happens. Is 
there anything that can be done about this ?

Thanks for the good work.

Regards,

hvn

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[beagleboard] Linux USB gadget with 2 usable ports

[Konrads Smelkovs]

Hello,

I want to build a device which exposes one USB port as a mass storage 
device to the computer plugged into it while the other can still be used to 
accept usb mass storage.
Linux USB gadget API can be used for the former purpose, but it requires 
direct PHY connection (and not via USB hub). Can BeagleBone Black be used 
for this purpose or there are some HW limitations?

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[beagleboard] Re: Serial communication problem

[Kees k]

I have the same problem, but only when using multiple serial ports at 
higher baudrates. I use libmodbus including 
*MODBUS_ERROR_RECOVERY_PROTOCOL. *
I notice many CRC errors and timeouts when using four serial ports together.

On Monday, August 26, 2013 8:37:42 AM UTC+2, pyro...@gmail.com wrote:
>
> Hi guys,
> thanks for responses.
>
> Im developing soft in java, its simple and work already on many different 
> system and architectures.
> This is simple: my program send query frame to custom device and device 
> sends reply with some data as modbus frame.
> And here is problem. When i have baudrate > 2400 then some troubles seems 
> to appear. I know how many data should i get, for example i know that frame 
> will be 100 bytes but i receive 97bytes. 
>
> I tried to use UART1 and UART2. Same problem on both.
> Im using BBB, OS angstrom, kernel 3.8.13.
>

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Re: [beagleboard] Installing ubuntu 13.04 server

[hvn052]

Op donderdag 14 november 2013 15:36:42 UTC+1 schreef RobertCNelson:
>
> On Thu, Nov 14, 2013 at 2:20 AM,  > wrote: 
> > Op woensdag 13 november 2013 19:05:45 UTC+1 schreef RobertCNelson: 
> >> 
> >> > Ok, I have the cursor now. But graphical response is extremely slow. 
> Any 
> >> > solution for that ? 
> >> 
> >> Turns out it's only running at 600Mhz right now, I just pushed a patch 
> >> to fix it, and re-enable the 800Mhz/1Ghz options.. 
> >> 
> >> 
> >> 
> https://github.com/RobertCNelson/armv7-multiplatform/commit/4f4725a83ad17ad11ec024a739f11ecd6a9cd597
>  
> >> 
> >> a fixed kernel should hit the repos later today.. 
> > 
> > 
> > I got an update for libprocps0 and procps, not linux-image (as kernel on 
> > Ubuntu) but after reboot I don't see a speed improvement. LXDE even 
> seems 
> > slower than before. Or am I missing something ? 
>
> It's now out.. Run this to upgrade... 
>
> wget http://rcn-ee.net/deb/raring-armhf/v3.12.0-armv7-x8/install-me.sh 
> sudo /bin/bash install-me.sh 
>
>
Ok, this clearly improves the speed on both ssh and tty. The mouse cursor 
moves faster and the login menu does so as well. The LXDE desktop works 
fine now. Unfortunately, after login, the Fvwm desktop stays pitch black 
with a movable mouse cursor. I am able to exit it using the Fvwm mouse-menu.

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Re: [beagleboard] Installing ubuntu 13.04 server

[Robert Nelson]

On Thu, Nov 14, 2013 at 2:20 AM,   wrote:
> Op woensdag 13 november 2013 19:05:45 UTC+1 schreef RobertCNelson:
>>
>> > Ok, I have the cursor now. But graphical response is extremely slow. Any
>> > solution for that ?
>>
>> Turns out it's only running at 600Mhz right now, I just pushed a patch
>> to fix it, and re-enable the 800Mhz/1Ghz options..
>>
>>
>> https://github.com/RobertCNelson/armv7-multiplatform/commit/4f4725a83ad17ad11ec024a739f11ecd6a9cd597
>>
>> a fixed kernel should hit the repos later today..
>
>
> I got an update for libprocps0 and procps, not linux-image (as kernel on
> Ubuntu) but after reboot I don't see a speed improvement. LXDE even seems
> slower than before. Or am I missing something ?

It's now out.. Run this to upgrade...

wget http://rcn-ee.net/deb/raring-armhf/v3.12.0-armv7-x8/install-me.sh
sudo /bin/bash install-me.sh

Regards,

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

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Re: [beagleboard] Re: BBB boot when connected to other devices

[Gerald Coley]

Fine.Fell free to remove it.

Gerald


On Thu, Nov 14, 2013 at 2:35 AM, Alberto Potenza <
alberto.potenz...@gmail.com> wrote:

> Gerald, William,
> thanks for your help.
>
> Here there is my .dts file.
>
>  Alberto
>
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[beagleboard] Re: USB client mode / usb HID mouse emulation with Beaglebone Black

[Marx Mustermann]

I hope, that this is possible somehow, but I don't know how. Have you had
any luck so far?


On Fri, Nov 8, 2013 at 1:08 PM,  wrote:

> Hi, is it possible for BeagleBone act as USB HID Camera device? (for
> example after installing v4l2loopback device driver)?
>
> пятница, 27 сентября 2013 г., 13:41:00 UTC+4 пользователь
> felix.w...@googlemail.com написал:
>
>> Hi Steve,
>>
>> the thing is that I already have a BBB and I need to do rather
>> computationally intensive stuff with it. I thought it would be best to just
>> use the available USB Port on the BBB to communicate with a host device
>> (=Computer) in order to avoid additional hardware and software layers.
>> Would you recommend coupling a Teensy2 with the BBB for this task?
>> In the end I want to plug (either the BBB or something else) into an
>> computer which recognized the device as a USB HID mouse.
>>
>> Thanks a lot.
>>  Felix
>>
>>

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[beagleboard] Re: BBB LCD Interface

[zj651927693]

I don't know the answer, either. I wonder if you have solved this problem.
In fact, I am a newbie to BBB and embedded system. I want to make BBB to 
display but I don't know how.

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[beagleboard] Re: USB client mode / usb HID mouse emulation with Beaglebone Black

[Marx Mustermann]

Hi,

no, there are no news on it and I still haven't figured out how to do it. I
would still be very grateful for any kind of help/hint. If you do succeed,
please do share your findings.

Kind regards,
 Felix


On Thu, Nov 14, 2013 at 9:12 AM,  wrote:

> hi Felix and Steven,
>
> Is there any update for this thread?
> I manage to kick off a project which requires exactly what Felix intended
> to do.(i.e. connect BBB as a mouse to PC)
> However I have no idea yet.
>
> Can you  share me the direction?
>
> thank you
>
> felix.w...@googlemail.com於 2013年9月24日星期二UTC+8上午2時21分40秒寫道：
>
>> Hello,
>>
>> I'm currently looking for help/information regarding the possibility to
>> use the Beaglebone Black as an external device (attached to a computer via
>> USB) emulating a mouse (USB HID Device). The BBB should register with the
>> computer as normal mouse and send eg. random movements to it.
>> My questions are the following:
>> 1. Is this theoretically possible?
>> 2. How would I achieve this? (So far I've searched for "USB HID mouse BBB
>> emulation", but have only come up with solutions for arduinos)
>> 3. Is there maybe an tutorial on this?
>> 4. Is there an API for this?
>> 5. Could someone provide me with a short example program?
>>
>> Thank you very much in advance.
>>
>> WIth kind regards
>>  Felix
>>
>>

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[beagleboard] Re: Problem building native rubygem extensions on BBB - string.h not found error

[slinuxkernel]

Hi Mark,

How did you change gcc compilation options for gem? I found some stuffs on 
the internet but it didnt work. 
gem install rails --with-cflags=\"-I /usr/include -static-libgcc\"
is this right syntax?

7 Eylül 2013 Cumartesi 05:30:36 UTC+3 tarihinde mark sayer yazdı:
>
> Okay - I've made some progress. mkmf is definitely not picking up 
> /usr/include - if I manually compile the conftest.c program adding in 
> -I/usr/include it resolves the error. The next error I get is from ld 
> unable to find ggc_s - I can overcome this by linking to the static gcc 
> using -static-libgcc.
>
> This is the compiler command line I can use to successfully build 
> conftest.c adding the above options to the line automagically generated by 
> mkmf:
>
> arm-angstrom-linux-gnueabi-gcc  -march=armv7-a -mthumb-interwork 
> -mfloat-abi=softfp -mfpu=neon -mtune=cortex-a8 
> --sysroot=/build/v2012.12/build/tmp-angstrom_v2012_12-eglibc/sysroots/beaglebone
>  
> -o conftest -I/usr/include/ruby-1.9.1/arm-linux-eabi 
> -I/usr/include/ruby-1.9.1/ruby/backward -I/usr/include/ruby-1.9.1 -I. 
> -D_FILE_OFFSET_BITS=64  -I/usr/include/mysql  -pipe -g 
> -feliminate-unused-debug-types   -DUNIV_LINUX -O2 -pipe -g 
> -feliminate-unused-debug-types -fPIC conftest.c  -L. -L/usr/lib -L. -Wl,-O1 
> -Wl,--hash-style=gnu -Wl,--as-needed -rdynamic -Wl,-export-dynamic   
>  -Wl,-O1 -Wl,--hash-style=gnu -Wl,--as-needed -rdynamic -L/usr/lib 
> -lmysqlclient -lz -lcrypt -lnsl -lm  -lruby  -lpthread -lrt -ldl -lcrypt 
> -lm   -lc -static-libgcc
>
> The question I have - is how do I configure mkmf to by default use these 
> options when building a native gem extension? mkmf.rb is difficult to 
> figure out and there deosn't seem to be much documentation around on how to 
> configure it. 
>
> Regards,
>
> Mark.
>
> On Monday, September 2, 2013 11:13:06 PM UTC+10, mark sayer wrote:
>>
>>
>> Howdy -
>>  
>> I'm having problems building native gems. When rubygem tries to make the 
>> native extension, I get an error saying string.h is not found.
>>  
>> I've compiled a basic C program with string.h to make sure all my default 
>> GCC include paths are right and it works fine. But I've tried to build 3 
>> gems now (I'm after mysql - but I've also tried json and others) all of 
>> which fail during make saying string.h not found.
>>  
>> I'm running
>>  
>> BeagleBon Black with Angtsrom 2012.12
>> Ruby 1.9.3p194
>> rubygem 1.8.23
>>  
>> I've installed the libc and other required development packaged using 
>> opkg. As stated I can compile C programs using GCC okay and I have verified 
>> string.h is available and basic string io functionality works in compiled C 
>> program.s
>>  
>> Here's the output from gem install mysql
>>  
>> Building native extensions.  This could take a while...
>> ERROR:  Error installing mysql:
>> ERROR: Failed to build gem native extension.
>> /usr/bin/ruby extconf.rb
>> checking for mysql_ssl_set()... *** extconf.rb failed ***
>> Could not create Makefile due to some reason, probably lack of
>> necessary libraries and/or headers.  Check the mkmf.log file for more
>> details.  You may need configuration options.
>> Provided configuration options:
>> --with-opt-dir
>> --without-opt-dir
>> --with-opt-include
>> --without-opt-include=${opt-dir}/include
>> --with-opt-lib
>> --without-opt-lib=${opt-dir}/lib
>> --with-make-prog
>> --without-make-prog
>> --srcdir=.
>> --curdir
>> --ruby=/usr/bin/ruby
>> --with-mysql-config
>> --without-mysql-config
>> /usr/lib/ruby/mkmf.rb:381:in `try_do': The compiler failed to generate an 
>> executable file. (RuntimeError)
>> You have to install development tools first.
>> from /usr/lib/ruby/mkmf.rb:461:in `try_link0'
>> from /usr/lib/ruby/mkmf.rb:476:in `try_link'
>> from /usr/lib/ruby/mkmf.rb:619:in `try_func'
>> from /usr/lib/ruby/mkmf.rb:894:in `block in have_func'
>> from /usr/lib/ruby/mkmf.rb:790:in `block in checking_for'
>> from /usr/lib/ruby/mkmf.rb:284:in `block (2 levels) in postpone'
>> from /usr/lib/ruby/mkmf.rb:254:in `open'
>> from /usr/lib/ruby/mkmf.rb:284:in `block in postpone'
>> from /usr/lib/ruby/mkmf.rb:254:in `open'
>> from /usr/lib/ruby/mkmf.rb:280:in `postpone'
>> from /usr/lib/ruby/mkmf.rb:789:in `checking_for'
>> from /usr/lib/ruby/mkmf.rb:893:in `have_func'
>> from extconf.rb:45:in `'
>>
>> Gem files will remain installed in 
>> /usr/lib/ruby/gems/1.9.1/gems/mysql-2.9.1 for inspection.
>> Results logged to 
>> /usr/lib/ruby/gems/1.9.1/gems/mysql-2.9.1/ext/mysql_api/gem_make.out
>>  
>> Here's the mkmf.log file from the gem install mysql:
>>  
>> "arm-angstrom-linux-gnueabi-gcc  -march=armv7-a -mthumb-interwork 
>> -mfloat-ab
>> i=softfp -mfpu=neon -mtune=cortex-a8 
>> --sysroot=/build/v2012.12/build/tmp-angstro
>> m_v2012_12-eglibc/sysroots/beagl

[beagleboard] AM335x PRU ICSS Registers Field Descriptions

[Daisuke Maeda]

Please tell me the PRU ICSS Registers Field Descriptions.

There are not the Field Descriptions of the registers except the CFG 
Registers in the PRU Reference Guide.

AM335x PRU-ICSS Reference Guide
https://github.com/beagleboard/am335x_pru_package/blob/master/am335xPruReferenceGuide.pdf
3 PRU-ICSS Register Overview
10 CFG

Best regards,

Daisuke

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[beagleboard] Re: About LCD configuration

[zj651927693]

I have no idea but I can make your post upper thus more people can read it.

On Friday, October 25, 2013 6:19:05 PM UTC+8, chaitra mohankumar wrote:
>
> Hello,
> I am working on my beaglebone black since a week to configure LCD. I have 
> disabled HDMI and trying to interface LCD but I am facing bit problem like 
> how set the configurations of LCD. My LCD configuration is fCLK = 6.4MHz, 
> fV = 60Hz, fH = 15.7kHz. I tried to alter the existing device tree 
> BB-BONE-LCD4-01-00A0 by it dint work i was getting a blank screen. I 
> thought there may be some particular bits need to be set so can i knw which 
> bits exactly do i need to set to obtain the output on LCD or do i need to 
> write my own device tree for this if yes can i know how can I write.  
> Please update me with this asap.
> Thank you
>

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[beagleboard] how to cross compile mjpg streamer package in host machine, can anyone help me to do this...

[naveen . teja1]

hi friends,

I tried a lot to cross compile the mjpg streamer in my host PC by exporting 
toolchain of cortexa8, it depends on libjpeg package, i configured libjpeg, 
but its not done.

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[beagleboard] Creating uSD image for custom built kernel for Angstrom

[Rayan Alsubhi]

Hello all,

I needed to apply a patch(To install driver for HD Camera Cape) on the 
latest kernel provided from here:git://github.com/beagleboard/kernel.git
I followed The steps provided here:http://elinux.org/Building_BBB_Kernel. 
Now I have *uImage-dtb.am335x-boneblack* file.
I want to boot my beaglebone black using an uSD card. However, I don't know 
how to do so!. 
I appreciate your help!

Thanks!

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[beagleboard] Re: USB client mode / usb HID mouse emulation with Beaglebone Black

[r93921100]

hi Felix and Steven, 

Is there any update for this thread?
I manage to kick off a project which requires exactly what Felix intended 
to do.(i.e. connect BBB as a mouse to PC)
However I have no idea yet.

Can you  share me the direction?

thank you

felix.w...@googlemail.com於 2013年9月24日星期二UTC+8上午2時21分40秒寫道：
>
> Hello,
>
> I'm currently looking for help/information regarding the possibility to 
> use the Beaglebone Black as an external device (attached to a computer via 
> USB) emulating a mouse (USB HID Device). The BBB should register with the 
> computer as normal mouse and send eg. random movements to it. 
> My questions are the following:
> 1. Is this theoretically possible?
> 2. How would I achieve this? (So far I've searched for "USB HID mouse BBB 
> emulation", but have only come up with solutions for arduinos)
> 3. Is there maybe an tutorial on this?
> 4. Is there an API for this?
> 5. Could someone provide me with a short example program?
>
> Thank you very much in advance.
>
> WIth kind regards
>  Felix
>
>

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Re: [beagleboard] Should I go on with angstrom: A specific use case

[Ozan Çağlayan]

Hi again,

Well I can't install scipy from pip as the build fails because of
missing BLAS and ATLAS libraries.

Well regarding Python, it is actually not at all :) If you use it for
scientific computing using numpy/scipy, it is actually quite
sufficient :)

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[beagleboard] Re: How the BeagleBone Black (Angstrom powered) synchronize his clock ?

[David Marquart]

from what I was finding it looks like the ntp-sync is used in the from 
crontab.  What do you get if you crontab -l ?  I found reference to where 
that is either ntp-sync or just set to pools.NTP.org just like you would do 
it manually.  M
y issue with the crontab way was if it ran before network was up it would 
be 30 mins before it set the date/time.

On Sunday, November 10, 2013 4:41:19 PM UTC-6, tee@gmail.com wrote:
>
> Hello,
>
> I'm trying to understand how the BeagleBone Black synchronize his clock.
>
> I have read the Derek Molloy blog (
> http://derekmolloy.ie/automatically-setting-the-beaglebone-black-time-using-ntp/)
>  
> but I want to understand the solution provided by the Angstrom distribution.
>
> My BeagleBone clock is correctly set up when I start it with the Wifi USB 
> key. It's set up without any specific configuration. For example I don't 
> change the /etc/default/ntpdate file so the NTPSERVERS is still empty.
> My interpretation of the /usr/bin/ntpdate-sync script is that it exit 
> without calling nptdate if the NTPSERVERS is empty:
>
> if [ "$NTPSERVERS" = "" ] ; then
> if [ "$METHOD" = "" -a "$1" != "silent" ] ; then
> echo "Please set NTPSERVERS in /etc/default/ntpdate"
> exit 1
> else
> exit 0
> fi
> fi
>
> Does it mean the BeagleBone clock is another way ? or does I'm wrong ?
>
>

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[beagleboard] How do i use the software in the dvsdk_4_01 to capture pictures ?

[chuansince1991]

Hi, all. 
 i  am a newer in bbxm rev c. i have use angstrom OS in my plate. 
And the dvsdk_4_01 has installed in my host machine which runs ubuntu OS. 
but next i do not know what i should do. i want to achieve some 
functionalities like video tracking. i know the codec engine mechanism and 
also want to use the DSP core. so could someone tell me what i should do 
next.

thanks a lot.

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[beagleboard] How do i use the software in the dvsdk_4_01 to capture pictures ?

[chuansince1991]

Hi, all. 
 i  am a newer in bbxm rev c. i have use angstrom OS in my plate. 
And the dvsdk_4_01 has installed in my host machine which runs ubuntu OS. 
but next i do not know what i should do. i want to achieve some 
functionalities like video tracking. i know the codec engine mechanism and 
also want to use the DSP core. so could someone tell me what i should do 
next.

thanks a lot.

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Re: [beagleboard] Re: BBB boot when connected to other devices

[Alberto Potenza]

Gerald, William,
thanks for your help.

Here there is my .dts file.

 Alberto

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BB-GPMC-001-00A0.dts
Description: Binary data

Re: [beagleboard] Installing ubuntu 13.04 server

[hvn052]

Op woensdag 13 november 2013 19:05:45 UTC+1 schreef RobertCNelson:
>
> > Ok, I have the cursor now. But graphical response is extremely slow. Any 
> > solution for that ? 
>
> Turns out it's only running at 600Mhz right now, I just pushed a patch 
> to fix it, and re-enable the 800Mhz/1Ghz options.. 
>
>
> https://github.com/RobertCNelson/armv7-multiplatform/commit/4f4725a83ad17ad11ec024a739f11ecd6a9cd597
>  
>
> a fixed kernel should hit the repos later today.. 
>

I got an update for libprocps0 and procps, not linux-image (as kernel on 
Ubuntu) but after reboot I don't see a speed improvement. LXDE even seems 
slower than before. Or am I missing something ?

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