http://www.computerworld.com/article/2605093/laid-off-from-job-man-builds-tweeting-toilet.html
You 2 can have your very own BBB toilet
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Will the kernel have PREEMPT enabled as its now disabled for debian ?
On Monday, August 18, 2014 6:56:34 AM UTC+5:30, Jason Kridner wrote:
It is time to make another big software push for BeagleBone Black. We
have several recent updates from Robert, including managing the kernel
as Debian
Hi,
During my research, I discovered that there is a BeagleBone Black PRU CAPE.
= http://www.ti.com/lit/df/tidr938/tidr938.pdf
Do you know where I can buy it ?
Thx you,
Micka.
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More info at: http://www.ti.com/lit/ug/tidu426/tidu426.pdf
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This does not tell us strictly speaking if the canbus itself has issues,
but we have a heartbeat device on the canbus. If we fail to hear from it
(or any other traffic) for a set period of time, we reset the canbus as you
described. In practice I've only seen this reset trigger when I've
doesn't support?
Doesn't come pre-installed, perhaps. What's not to support?
On Wednesday, September 10, 2014 7:08:48 AM UTC-7, Peter Gregory wrote:
What version of Ubuntu are you running?
I believe 14.04 doesn't support mono.
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Hi Robert,
I checked this morning and it's A3
[0.595611] bone-capemgr bone_capemgr.9: slot #0: '4D 7.0 LCD CAPE-
4DCAPE-70T ,00A3,4D SYSTEMS ,BB-BONE-LCD7-01'
[0.689675] bone-capemgr bone_capemgr.9: Skipping loading of disabled
cape with part# BB-BONELT-HDMI
[0.689690]
On Saturday, August 30, 2014 12:01:18 PM UTC+1, Michaël Vaes wrote:
Hi -
I'm stuck getting my DS18B20 temperature sensor working on my Beaglebone
Black. I installed and loaded the DTC overlay but Im not getting the '28-*'
files in my '/sys/devices/w1_bus_master1/' directory.
The dts
On Thu, Sep 11, 2014 at 8:12 AM, Cedric Malitte
cedric.mali...@gmail.com wrote:
Hi Robert,
I checked this morning and it's A3
[0.595611] bone-capemgr bone_capemgr.9: slot #0: '4D 7.0 LCD CAPE-
4DCAPE-70T ,00A3,4D SYSTEMS ,BB-BONE-LCD7-01'
Ah, the 4dcape-70t, (i grabbed the wrong
On Friday, September 5, 2014 1:39:04 PM UTC-4, RobertCNelson wrote:
On Fri, Sep 5, 2014 at 12:32 PM, Gerald Coley ger...@beagleboard.org
javascript: wrote:
SW is supposed to set it to 1.35V. Sounds like it got dropped somewhere
because initially it did.. It was designed this way because
I will try, but I'm checking diffs between 3.8.13 dts and 3.15.10, because
using dtb from 3.14 is not really a solution for me as I also need pruss.
Well I think :)
Thanks
Le jeudi 11 septembre 2014 10:02:28 UTC-4, RobertCNelson a écrit :
On Thu, Sep 11, 2014 at 8:12 AM, Cedric Malitte
On Thu, Sep 11, 2014 at 9:26 AM, Cedric Malitte
cedric.mali...@gmail.com wrote:
I will try, but I'm checking diffs between 3.8.13 dts and 3.15.10, because
using dtb from 3.14 is not really a solution for me as I also need pruss.
Well I think :)
On Thursday, September 11, 2014 10:23:40 AM UTC-4, Tom Rini wrote:
On Friday, September 5, 2014 1:39:04 PM UTC-4, RobertCNelson wrote:
On Fri, Sep 5, 2014 at 12:32 PM, Gerald Coley ger...@beagleboard.org
wrote:
SW is supposed to set it to 1.35V. Sounds like it got dropped somewhere
On Thu, Sep 11, 2014 at 9:23 AM, Tom Rini tom.r...@gmail.com wrote:
On Friday, September 5, 2014 1:39:04 PM UTC-4, RobertCNelson wrote:
On Fri, Sep 5, 2014 at 12:32 PM, Gerald Coley ger...@beagleboard.org
wrote:
SW is supposed to set it to 1.35V. Sounds like it got dropped somewhere
Brent,
have you tried to use can-utils to dump traffic on the canbus when the NIC
is found in that bad state? AFAIK, socketCAN implementation on linux does
not utilize ID filtering on the can transceiver, it is done at the
SocketCAN api level. You maybe able to see traffic. Also, what can
From dmesg:
A6 - Debian bone 60 - vdd-mpu 1100 mV, Bogomips 545
B - Debian bone 60 - vdd-mpu 1100 mV, Bogomips 545
C - Debian bone 60 - vdd-mpu 1325 mV, Bogomips 993
Also:
A6 - Angstrom 3.8.13 - vdd-mpu 1100 mV, Bogomips 545
B - Angstrom 3.8.13 - vdd-mpu 1100 mV, Bogomips 545
C -
On Thu, Sep 11, 2014 at 10:23 AM, jstam...@gmail.com wrote:
From dmesg:
A6 - Debian bone 60 - vdd-mpu 1100 mV, Bogomips 545
B - Debian bone 60 - vdd-mpu 1100 mV, Bogomips 545
C - Debian bone 60 - vdd-mpu 1325 mV, Bogomips 993
Also:
A6 - Angstrom 3.8.13 - vdd-mpu 1100 mV,
What information would you like?
What is the latest version of the bootloader for these boards?
On Thu, Sep 11, 2014 at 11:27 PM, Robert Nelson robertcnel...@gmail.com
wrote:
On Thu, Sep 11, 2014 at 10:23 AM, jstam...@gmail.com wrote:
From dmesg:
A6 - Debian bone 60 - vdd-mpu 1100 mV,
On Thu, Sep 11, 2014 at 10:34 AM, John Stampfl jstam...@gmail.com wrote:
What information would you like?
What is the latest version of the bootloader for these boards?
Well, since the C works..
Run the debian flasher on the A6/B
http://beagleboard.org/latest-images
Regards,
--
Robert
Ok, will do that tomorrow and report
On Thu, Sep 11, 2014 at 11:37 PM, Robert Nelson robertcnel...@gmail.com
wrote:
On Thu, Sep 11, 2014 at 10:34 AM, John Stampfl jstam...@gmail.com wrote:
What information would you like?
What is the latest version of the bootloader for these boards?
Le jeudi 11 septembre 2014 10:32:25 UTC-4, RobertCNelson a écrit :
On Thu, Sep 11, 2014 at 9:26 AM, Cedric Malitte
cedric@gmail.com javascript: wrote:
I will try, but I'm checking diffs between 3.8.13 dts and 3.15.10,
because
using dtb from 3.14 is not really a solution for me as
On Thu, Sep 11, 2014 at 11:00 AM, Cedric Malitte
cedric.mali...@gmail.com wrote:
Le jeudi 11 septembre 2014 10:32:25 UTC-4, RobertCNelson a écrit :
On Thu, Sep 11, 2014 at 9:26 AM, Cedric Malitte
cedric@gmail.com wrote:
I will try, but I'm checking diffs between 3.8.13 dts and 3.15.10,
On Thu, Sep 11, 2014 at 9:32 AM, Jason Kridner jkrid...@gmail.com wrote:
On Thursday, September 11, 2014 10:23:40 AM UTC-4, Tom Rini wrote:
On Friday, September 5, 2014 1:39:04 PM UTC-4, RobertCNelson wrote:
On Fri, Sep 5, 2014 at 12:32 PM, Gerald Coley ger...@beagleboard.org
wrote:
SW
Here's a fix for the dts..
debian@beaglebone:/opt/source/dtb-3.14-ti/src/arm$ git diff
am335x-boneblack.dts
diff --git a/src/arm/am335x-boneblack.dts b/src/arm/am335x-boneblack.dts
index d594da5..c1420f3 100644
--- a/src/arm/am335x-boneblack.dts
+++ b/src/arm/am335x-boneblack.dts
@@
Hi John
1. You said that i can execute control functions / time critical
functions using PRU, but how ? Is there any guide/sample code to using the
PRU like in github ?
2. There is nothing described about using PRU in the TRM, except that
its has 7 interrupt lines so are there
I would suggest looking at Dokeos or Moodle as a web-based platform to
deliver your curriculum from either the Rpi or the BBB. They are both
great tools.
I've used both in hosted settings but haven't tried them on an embedded
Linux platform yet... so I can't vouch for performance.
--
Hi Brandon
1. I agree with jitter involved with processing interrupts and 100% cpu
usage during polling for the same, so is there no way to let the user-space
know that interrupt has occurred apart from polling ?
2. The reason why i said pseudo-interrupt is because we are polling
Thanks!
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For
I've got a RS232 micro cape
http://www.logicsupply.com/components/beaglebone/capes/cbb-ttl-232/ that I
need to use as a serial port. The problem is that by default /dev/ttyO0 is
setup as a login console. I need to disable that so that I can use the
port for my own purposes.
I've found
You can configure the controller to automatically recover from bus-off
conditions by setting the restart-ms option.
The python-can documentation has some useful notes on socket-can and
bus-off conditions:
http://python-can.readthedocs.org/en/latest/socketcan.html#can-errors
On Wednesday,
Hi Colin,
Have you figured out whether it is a config or dongle issue?
Thanks!
On Tuesday, July 8, 2014 3:21:34 PM UTC-7, Colin Bester wrote:
i purchased Ralink5370 USB dongle and it is working as access point. I am
having issues connecting with a windows client but am not yet sure on cause
Hi Robert,
I want to read/write data directly from the registers for SPI0.
1) I read the arm335X manual for this.
2) I am coding in C.
3) According to the manual I have to first soft reset the the module. For
this purpose I have to set the RESETDONE bit in the MCSPI_SYSCONFIG
register.
4) So I
Hi,
I want to read data from a sensor that uses SDI-12, i read about how the
SDI-12 functions but I can't find a way to implement it in my Beaglebone
Black. Any suggestions on how to do this?
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Le jeudi 11 septembre 2014 12:26:53 UTC-4, RobertCNelson a écrit :
On Thu, Sep 11, 2014 at 11:00 AM, Cedric Malitte
cedric@gmail.com javascript: wrote:
Le jeudi 11 septembre 2014 10:32:25 UTC-4, RobertCNelson a écrit :
On Thu, Sep 11, 2014 at 9:26 AM, Cedric Malitte
in pinmux file:
bbcape_lcd7_pins: bbcape_lcd7_pins {
pinctrl-single,pins =
0x150 (PIN_OUTPUT_PULLUP | MUX_MODE7) /* spi0_sclk.gpio0_2, OUTPUT |
MODE7 -
AVDD_EN */
I think this was the fix ^..
Yes this is the fix :)
Cool! i'll enable that by default...
Another trouble is with
On Thursday, September 11, 2014 10:39:25 AM UTC-4, RobertCNelson wrote:
On Thu, Sep 11, 2014 at 9:23 AM, Tom Rini tom.r...@gmail.com wrote:
On Friday, September 5, 2014 1:39:04 PM UTC-4, RobertCNelson wrote:
On Fri, Sep 5, 2014 at 12:32 PM, Gerald Coley ger...@beagleboard.org
Tim,
Please look the this stackoverflow questions and response
Start QT Application on bootup on an Embedded Linux Device (Beaglebone
Black)
http://stackoverflow.com/questions/25701662/start-qt-application-on-bootup-on-an-embedded-linux-device-beaglebone-black
Based on this input I was able to
On 9/11/14, 12:06 PM, Robert Nelson robertcnel...@gmail.com wrote:
On Thu, Sep 11, 2014 at 1:57 PM, Jason Kridner jkrid...@gmail.com wrote:
On Thursday, September 11, 2014 10:39:25 AM UTC-4, RobertCNelson wrote:
On Thu, Sep 11, 2014 at 9:23 AM, Tom Rini tom.r...@gmail.com wrote:
On
*william@arm:~$ cat /proc/cpuinfo*
processor : 0
model name : ARMv7 Processor rev 2 (v7l)
BogoMIPS: *297.40*
Features: swp half thumb fastmult vfp edsp thumbee neon vfpv3 tls
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x3
CPU part: 0xc08
CPU
By the way. For what it is worth. While the CPU profile is set to ondemand,
the processor will stay at 300MHz until CPU utilization goes above 60%. I
tested this early on last year with a simple load test application that I
wrote. Which I think I may have even posted the code on these groups . . .
OK, one more time. All userspace interrupts work the same, pru, network
driver, *anything*. The process blocks until the interrupt handler unblocks
the process with a semaphore or completion in the kernel. For example, when
you read data for a socket connection, it blocks. When data comes in, the
About Touchscreen
forget all I said :)
My very own fault, I had leftover TS things in /etc/profile pointing to
/dev/input/event1
instead of /dev/input/event2
So back to my sandbox for a bit more games :)
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On Thu, Sep 11, 2014 at 1:57 PM, Jason Kridner jkrid...@gmail.com wrote:
On Thursday, September 11, 2014 10:39:25 AM UTC-4, RobertCNelson wrote:
On Thu, Sep 11, 2014 at 9:23 AM, Tom Rini tom.r...@gmail.com wrote:
On Friday, September 5, 2014 1:39:04 PM UTC-4, RobertCNelson wrote:
On
Then it appears your cape is working and the chips are at least visible to
the bus. You should be able to use the smbus system calls to talk to
them. Might be able to do something with i2cget.
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Thanks! That's more grist for my slowly grinding mental mill
On Thursday, September 11, 2014 3:29:15 PM UTC-4, Mahendra Gunawardena
wrote:
Tim,
Please look the this stackoverflow questions and response
Start QT Application on bootup on an Embedded Linux Device (Beaglebone
Black)
Adding restart-ms did the trick! Thanks so much, I never knew that was even
there.
On Wed, Sep 10, 2014 at 8:37 PM, Devan Lai devan@gmail.com wrote:
You can configure the controller to automatically recover from bus-off
conditions by setting the restart-ms option.
The python-can
Some reason you can't just use one of the other UARTs? It's very handy to
have a serial console for debugging.
On Thursday, September 11, 2014 10:29:48 AM UTC-7, jgold wrote:
I've got a RS232 micro cape
http://www.logicsupply.com/components/beaglebone/capes/cbb-ttl-232/ that
I need to use
Ok, where does one get qtwayland?
It is not a part of the normal distribution repositories
Nor is it in ubuntu-sdk-team/ppa
I saw some references on how to download and compile it.
Is that my only option?
Do any of the desktops in the normal distribution work or are they all X
desktops?
I was able to build and install the same version of openCV (2.4.9) on BBB
debian as on my desktop Ubuntu by using an external USB memory stick.
Now I have a problem with changing CPU frequency (as I would like to
increase it from 300MHz to 1GHz)
debian@beaglebone:~$ cpufreq-info
cpufrequtils
From: Peter Gregory talkto...@gmail.com
Reply-To: beagleboard@googlegroups.com beagleboard@googlegroups.com
Date: Thursday, September 11, 2014 at 3:33 PM
To: beagleboard@googlegroups.com beagleboard@googlegroups.com
Cc: wingli...@163.com
Subject: Re: [beagleboard] Beaglebone Black rev B -
From: janszymanski12...@gmail.com
Reply-To: beagleboard@googlegroups.com beagleboard@googlegroups.com
Date: Thursday, September 11, 2014 at 3:35 PM
To: beagleboard@googlegroups.com beagleboard@googlegroups.com
Subject: Re: [beagleboard] Re: color ball tracking with opencv on BBB
I was able
On Thu, Sep 11, 2014 at 5:33 PM, Peter Gregory talkto...@gmail.com wrote:
Ok, where does one get qtwayland?
It is not a part of the normal distribution repositories
Nor is it in ubuntu-sdk-team/ppa
I saw some references on how to download and compile it.
Is that my only option?
Do any of the
$ cpufreq-set --help. You may need to set you profile limits/ performance
is default 300MHz to 1Ghz just like ondemand, but for some reason it is
always 1GHz whenever I look.
On Thu, Sep 11, 2014 at 3:47 PM, John Syn john3...@gmail.com wrote:
From: janszymanski12...@gmail.com
Reply-To:
From memory setting profile limits would be like this
You change to a profile via
$ sudo cpufreq-set -g govenor_name
Check profile limits
$ sudo cpufreq-info -p
Change minimum profile range
$ cpufreq-set -d 100 /*set minimum processor freq for active profile to
1 GHz */
I do not know if
Oh, and for the uninitiated . . . setting your governor to performance /
1Ghz _all_the_time_ may not be a very good idea. For instance it has been
in the mid to upper 80's F outdoor ambient here, and I've noticed my BBB
getting pretty warm.
On Thu, Sep 11, 2014 at 4:34 PM, William Hermans
ttyo0 has to be disabled in uEnv.txt, and also the board device tree file I
believe ( could be wrong on the last part ). Also, systemd may have a
service profile for it. I have not looked, and currently am not running
systemd. Maybe I'll check later once I get this rootfs working good, and
backed
Brent, what guide are you reading for CAN ? I've never used CAN personally,
and am curious . . .
On Thu, Sep 11, 2014 at 2:25 PM, Brent Sink brent.s...@gmail.com wrote:
Adding restart-ms did the trick! Thanks so much, I never knew that was
even there.
On Wed, Sep 10, 2014 at 8:37 PM, Devan
Thanks for all the great info.
I was in the process of testing lxde (Lightweight X11 desktop environment)
as of my last post
It works quite well.
I installed bone-ubuntu-14.04-console-armhf-2014-08-13-2gb.img.xz onto a SD
card
I installed the SGX drivers as described
at
How about performance ? I'd expect it would run sluggish.I wonder how well
xcompmgr + cairo-dock would run on it heh.
I recently installed Lubuntu 14.04 on an older laptop, and have to say I'm
impressed with it. Aesthetically it looks very nice, and otherwise is just
Ubuntu, except it
Well, I'm not reading a guide, but I'll share a few links that helped me
get started. I have a Qt application and I use the SocketCAN to read/write
CAN messages. This will work with J1939 as well.
https://www.kernel.org/doc/Documentation/networking/can.txt
The micro cape I purchased can be either UART0 or UART4 but to change it
you have to solder some bridges across some little bitty pads. It looked
too delicate for my fat fingers so with this setup, I'm kinda stuck with
UART0.
On Thursday, September 11, 2014 3:02:34 PM UTC-7, Lee Crocker
Thank Brent, However I was more curious about the bring up of the hardware
on the BBB. IS there cape file I have not noticed yet ?
If so I can probably figure it out on my own.
On Thu, Sep 11, 2014 at 4:52 PM, Brent brent...@hotmail.com wrote:
Well, I'm not reading a guide, but I'll share a
I found the answer here;
http://stackoverflow.com/questions/21596384/cannot-disable-systemd-serial-getty-service
My port is at ttyO0. so in my case I entered systemctl mask
serial-getty@ttyO0.service. I was able to confirm the device name by
typing systemctl --full. My device was in the
Ah, yes. The TT3201 cape has three CAN channels, but two of them are over
SPI. This should help you out...
https://github.com/beagleboard/devicetree-source/blob/master/arch/arm/boot/dts/TT3201-001-01.dts
On Thu, Sep 11, 2014 at 8:00 PM, William Hermans yyrk...@gmail.com wrote:
Thank Brent,
Does anyone know that if the watchdog timer is enabled, will a kernel panic
still allow the watchdog to reset? Since it's not an external watchdog, I
wasn't sure what would happen.
I've seen some cases where the kernel will panic and completely brick my
device until it is manually rebooted.
Or, cpufreq-set -f 1GHz
On Thu, Sep 11, 2014 at 4:39 PM, William Hermans yyrk...@gmail.com wrote:
Oh, and for the uninitiated . . . setting your governor to performance /
1Ghz _all_the_time_ may not be a very good idea. For instance it has been
in the mid to upper 80's F outdoor ambient here,
That works.
Another question is how to clone or replicate BBBs eMMC? How to move it
into microSD card and vice versa?
If I need to have exactly the same image on another BBB as the one I am
currently working on (when it's finished) what is the procedure then?
On Friday, 12 September 2014
I figured out how to change the watchdog duration. The example program is
here:
http://embeddedfreak.wordpress.com/2010/08/23/howto-use-linux-watchdog/
And a good description of the available commands is here:
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