[beagleboard] Can´t echo to slotsfile

[Beagle Boner]

Hi there,

I´m using Debian Jessie 8.7 (Kernel 4.4.54) on my BBB. In the long-run I 
want to connect a LCD Display via the 16Bit Interface to the BBB. So I have 
to disabled the HDMI (Audio/Video) by uncommenting this in the uEnv.txt 
right?

##BeagleBone Black: HDMI (Audio/Video) disabled:
dtb=am335x-boneblack-emmc-overlay.dtb

I also commented this line.

#In the event of edid real failures, uncomment this next line:
#cmdline=coherent_pool=1M net.ifnames=0 quiet cape_universal=enable 
video=HDMI-A-1:1024x768@60e


But for now I try to load anything to my slotsfile, for example the PWM, 
but it seems like nothing happens:

debian@beaglebone:/lib/firmware$ export 
SLOTS=/sys/devices/platform/bone_capemgr/slots
debian@beaglebone:/lib/firmware$ sudo echo "BB-PWM1-00A0.dtbo > $SLOTS"
BB-PWM1-00A0.dtbo > /sys/devices/platform/bone_capemgr/slots

When I cat the slotsfile, nothing is loaded.

debian@beaglebone:/lib/firmware$ cat $SLOTS
 0: PF  -1 
 1: PF  -1 
 2: PF  -1 
 3: PF  -1

What am I doing wrong? 

To connect a 4.3" LCD (it´s not a cape) to my BBB I have to load a LCD 
overlay, for example the "BB-BONE-LCD4-01-00A1.dtbo", which my 4D Systems 
LCD Cape uses, right? Can I adapt that dtbo to make it work with my 
non-cape display?


Cheers,

Max


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[beagleboard] Re: Flashing eMMC memory from SD card with Chipsee Debian Jessie

[Radovan Chovan]

I updated scripts using:
cd /opt/scripts/
git pull 

Then I ran:
cd /opt/scripts/tools/eMMC/
sudo ./init-eMMC-flasher-v3.sh

Result:

eMMC has been flashed: please wait for device to power down.

Calling shutdown

But after removing SD card and switching SW8 to "eMMC", the BBB didn't boot 
- all 4 USER LEDs are lit, but nothing else happens.




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[beagleboard] Chroot, qemu and run beagle image ?

[Riko Ho]

Hello everyone,

Is it possible that I create chroot,  qemu and then run beagle image on 
my ubuntu X86_64 host ?


Any clues doing that ?

--
*/***/
Sent by Ubuntu LTS 16.04,
谢谢,
Kind regards,
Riko Ho
/***/
*

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Re: [beagleboard] Re: eQEP1 setup problems with latest debian iOT

[Hugh Frater]

It looks like we are good-to-go. Thanks for sorting this out guys :)

Hugh

On Wednesday, 10 May 2017 17:16:50 UTC+1, RobertCNelson wrote:
>
> On Wed, May 10, 2017 at 10:20 AM, Hugh Frater  > wrote: 
> > Thanks guys, I'll keep an eye on the repository and grab a copy once 
> things 
> > are finalised. 
>
> Okay all pushed out.. 
>
> run: 
>
> sudo apt update ; sudo apt upgrade 
>
> and it should show an upgrade for bb-cape-overlays 
> bb-cape-overlays_4.4.20170510.0 
>
> reboot and it should work, let us know.. 
>
> Regards, 
>
> -- 
> Robert Nelson 
> https://rcn-ee.com/ 
>

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Re: [beagleboard] Where to get help?

[rubberychicken69]

Hi Robert,

I now have the camera working as well, sort of. It seems my error was 
trying to set it up while ardupilot was running, the system is very laggy 
and doesn't seem to behave well when ardupilot is running. When I killed 
ardupilot I could get the camera working and when re-starting ardupilot it 
stayed working but was very slow @ 640x480. Similarly, I can play basic wav 
files over bluetooth but it will not play mp3 while ardupilot is running.

My goal was to have a camera on a rover using the beglebone blue without 
needing any additional hardware, I have this now but it is too laggy to be 
of any use.

As mentioned previously I believe this is a known issue but is anybody 
working on fixing it and where is the right place to discuss this?

Cheers,

Brain

On Thursday, May 11, 2017 at 5:08:42 AM UTC+10, RobertCNelson wrote:
>
> On Mon, May 8, 2017 at 4:01 PM, Robert Nelson  > wrote: 
> > On Mon, May 8, 2017 at 3:48 PM,  > 
> wrote: 
> >> root@beaglebone:~# sudo systemctl status mjpg-streamer.service 
> >> ● mjpg-streamer.service - Webcam Video Streaming 
> >>Loaded: loaded (/etc/systemd/system/mjpg-streamer.service; static; 
> vendor 
> >> preset: enabled) 
> >>Active: failed (Result: exit-code) since Tue 2017-05-09 06:37:28 
> AEST; 
> >> 7min ago 
> >>   Process: 2973 ExecStart=/usr/bin/mjpg_streamer -i 
> >> /usr/lib/mjpg-streamer/input_uvc.so -o 
> /usr/lib/mjpg-streamer/output_http.so 
> >> -p 8090 -w /usr/share/mjpg-streamer/www (code=exited, status=1/FAILURE) 
> >>  Main PID: 2973 (code=exited, status=1/FAILURE) 
> >> 
> >> beaglebone mjpg_streamer[2973]: MJPG-streamer [2973]: 
> username:password: 
> >> disabled 
> >> beaglebone mjpg_streamer[2973]: MJPG-streamer [2973]: 
> commands.: 
> >> enabled 
> >> beaglebone mjpg_streamer[2973]: MJPG-streamer [2973]: starting input 
> plugin 
> >> /usr/lib/mjpg-streamer/input_uvc.so 
> >> beaglebone mjpg_streamer[2973]: MJPG-streamer [2973]: starting output 
> >> plugin: /usr/lib/mjpg-streamer/output_http.so (ID: 00) 
> >> beaglebone mjpg_streamer[2973]: Ignoring empty buffer ... 
> >> beaglebone mjpg_streamer[2973]: Unable to dequeue buffer: No such 
> device 
> >> beaglebone mjpg_streamer[2973]:  i: Error grabbing frames 
> >> beaglebone systemd[1]: mjpg-streamer.service: Main process exited, 
> >> code=exited, status=1/FAILURE 
> >> beaglebone systemd[1]: mjpg-streamer.service: Unit entered failed 
> state. 
> >> beaglebone systemd[1]: mjpg-streamer.service: Failed with result 
> >> 'exit-code'. 
> > 
> > Yuck, my C270 is at home, so i'll grab it tonight and either test 
> > tonight or tomorrow.. 
>
> Make that my C920, it works fine: 
>
> May 10 19:00:12 beaglebone kernel: usb 1-1: new high-speed USB device 
> number 3 using musb-hdrc 
> May 10 19:00:14 beaglebone kernel: usb 1-1: New USB device found, 
> idVendor=046d, idProduct=082d 
> May 10 19:00:14 beaglebone kernel: usb 1-1: New USB device strings: 
> Mfr=0, Product=2, SerialNumber=1 
> May 10 19:00:14 beaglebone kernel: usb 1-1: Product: HD Pro Webcam C920 
> May 10 19:00:14 beaglebone kernel: usb 1-1: SerialNumber: A79808EF 
> May 10 19:00:14 beaglebone kernel: uvcvideo: Found UVC 1.00 device HD 
> Pro Webcam C920 (046d:082d) 
> May 10 19:00:14 beaglebone kernel: input: HD Pro Webcam C920 as 
> /devices/platform/ocp/4740.usb/47401c00.usb/musb-hdrc.1.auto/usb1/1-1/1-1:1.0/input/input1
>  
>
> May 10 19:00:14 beaglebone kernel: usbcore: registered new interface 
> driver uvcvideo 
> May 10 19:00:14 beaglebone kernel: USB Video Class driver (1.1.1) 
> May 10 19:00:15 beaglebone kernel: usbcore: registered new interface 
> driver snd-usb-audio 
> May 10 19:00:15 beaglebone systemd[1]: Reached target Sound Card. 
> May 10 19:00:15 beaglebone systemd[1]: Started Webcam Video Streaming. 
> May 10 19:00:15 beaglebone mjpg_streamer[2332]: MJPG-streamer [2332]: 
> starting application 
> May 10 19:00:15 beaglebone mjpg_streamer[2332]: MJPG Streamer Version.: 
> 2.0 
> May 10 19:00:15 beaglebone mjpg_streamer[2332]:  i: Using V4L2 
> device.: /dev/video0 
> May 10 19:00:15 beaglebone mjpg_streamer[2332]:  i: Desired 
> Resolution: 640 x 480 
> May 10 19:00:15 beaglebone mjpg_streamer[2332]: MJPG-streamer [2332]: 
> MJPG Streamer Version.: 2.0 
> May 10 19:00:15 beaglebone mjpg_streamer[2332]:  i: Frames Per Second.: -1 
> May 10 19:00:15 beaglebone mjpg_streamer[2332]:  i: Format: 
> JPEG 
> May 10 19:00:15 beaglebone mjpg_streamer[2332]:  i: TV-Norm...: 
> DEFAULT 
> May 10 19:00:15 beaglebone mjpg_streamer[2332]: MJPG-streamer [2332]: 
> Using V4L2 device.: /dev/video0 
> May 10 19:00:15 beaglebone mjpg_streamer[2332]: UVCIOC_CTRL_ADD - 
> Error at Pan (relative): Inappropriate ioctl for device (25) 
> May 10 19:00:15 beaglebone mjpg_streamer[2332]: UVCIOC_CTRL_ADD - 
> Error at Tilt (relative): Inappropriate ioctl for device (25) 
> May 10 19:00:15 beaglebone mjpg_streamer[2332]: UVCIOC_CTRL_ADD - 
> Error at Pan Reset: Inappropriate ioctl for d

[beagleboard] Re: Help! Beaglebone Blue seems to have died

[Chuck DuBois]

I've had to move on to another project for the short term, but since 
changing our process, we have not had an issue with the LIPO charging IC. 
 Discontinuing use of the USB power connector seems to be key, and this 
setup has worked for multiple days without incident.  We now cable to USB 
for initial configuration *without standalone power*, then use Wi-Fi for 
connectivity and a 12-15v power adapter exclusively.

On Wednesday, May 10, 2017 at 2:08:48 PM UTC-4, a156...@owlpic.com wrote:
>
> .. same here.
>
> BB Blue was in the process of booting with usb-power. Attached to the 
> board was:
>
> - an Adafruit GPS module (GPS connector)
> - six NAZA ESC, data and GND pinned to the 8x3header (1..6), flight power 
> battery to the ESC unconnected.
> - one Spektrum satellite receiver to E4 connector 
> there was no battery attached to the bb blue LIPO connector.
>
> When I plugged in a 12V from an AC/DC Adapter to the barrel connector the 
> LIPO charger IC smoked away. 
> I powered up this collection several times before, even flew the copter a 
> few seconds. 
> Anyway in the schematic I cannot find a plausible cause for a high current 
> at that situation. 
> What a disappointment.
>
> Jo
>
>
>
>

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[beagleboard] Set BBB Wireless as AP

[edb1418]

I'm trying to configure my BBB Wireless (latest kernel) w/ the latest 
debian image as an access point.  By default, the device is already set, as 
I see BeagleBone- as an wireless SSID available to connect to.  Is 
there somewhere I can change this SSID and password, and assign a static IP 
too.  I've tried making a new hostapd.conf entry on my own, but it's 
apparently getting overwritten somehow by the default configuration.  Any 
advice or link to where I can step through configuring this would be highly 
appreciated... thank you!

Respectfully,
Eric

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Re: [beagleboard] Can´t echo to slotsfile

[Chad Baker]

Try
sudo echo BB-PWM1 > /sys/devices/platform/bone_capemgr/slots
You can decompile the dtb by
dtc -@ -I dtb -O dtc -o BB-BONE-LCD4-01-00A1.dts BB-BONE-LCD4-01-00A1.dtbo
Chad

On 5/11/2017 2:50 AM, Beagle Boner wrote:

Hi there,

I´m using Debian Jessie 8.7 (Kernel 4.4.54) on my BBB. In the long-run 
I want to connect a LCD Display via the 16Bit Interface to the BBB. So 
I have to disabled the HDMI (Audio/Video) by uncommenting this in the 
uEnv.txt right?


##BeagleBone Black: HDMI (Audio/Video) disabled:
dtb=am335x-boneblack-emmc-overlay.dtb

I also commented this line.

#In the event of edid real failures, uncomment this next line:
#cmdline=coherent_pool=1M net.ifnames=0 quiet cape_universal=enable 
video=HDMI-A-1:1024x768@60e



But for now I try to load anything to my slotsfile,for example the 
PWM, but it seems like nothing happens:


debian@beaglebone:/lib/firmware$ export 
SLOTS=/sys/devices/platform/bone_capemgr/slots

debian@beaglebone:/lib/firmware$ sudo echo "BB-PWM1-00A0.dtbo > $SLOTS"
BB-PWM1-00A0.dtbo > /sys/devices/platform/bone_capemgr/slots

When I cat the slotsfile, nothing is loaded.

debian@beaglebone:/lib/firmware$ cat $SLOTS
 0: PF -1
 1: PF -1
 2: PF -1
 3: PF -1

What am I doing wrong?

To connect a 4.3" LCD (it´s not a cape) to my BBB I have to load a LCD 
overlay, for example the "BB-BONE-LCD4-01-00A1.dtbo", which my 4D 
Systems LCD Cape uses, right? Can I adapt that dtbo to make it work 
with my non-cape display?



Cheers,

Max


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[beagleboard] Powering using SYS_5V

[PM]

Hello,

I am trying to power my BBB from an external 12V source.

I convert it to 5V using D15V35F5S3 step down convertor from Pololu.

When I connect it to SYS_5V it works but I have to always hit the power 
button before the lights go on.

Do you know any way to not to have to hit the POWER button ?

Thank you very much.

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Re: [beagleboard] Powering using SYS_5V

[Chad Baker]

You could add a toggle switch between the power supply and the BBB, or 
more simply just not power the BBB down. Leave it up.

Chad

On 5/11/2017 7:54 AM, PM wrote:

Hello,

I am trying to power my BBB from an external 12V source.

I convert it to 5V using **D15V35F5S3 step down convertor from Pololu.

When I connect it to SYS_5V it works but I have to always hit the 
power button before the lights go on.


Do you know any way to not to have to hit the POWER button ?

Thank you very much.
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Re: [beagleboard] Can´t echo to slotsfile

[Robert Nelson]

On Thu, May 11, 2017 at 2:50 AM, Beagle Boner  wrote:
> Hi there,
>
> I´m using Debian Jessie 8.7 (Kernel 4.4.54) on my BBB. In the long-run I
> want to connect a LCD Display via the 16Bit Interface to the BBB. So I have
> to disabled the HDMI (Audio/Video) by uncommenting this in the uEnv.txt
> right?
>
> ##BeagleBone Black: HDMI (Audio/Video) disabled:
> dtb=am335x-boneblack-emmc-overlay.dtb
>
> I also commented this line.
>
> #In the event of edid real failures, uncomment this next line:
> #cmdline=coherent_pool=1M net.ifnames=0 quiet cape_universal=enable
> video=HDMI-A-1:1024x768@60e
>
>
> But for now I try to load anything to my slotsfile, for example the PWM, but
> it seems like nothing happens:
>
> debian@beaglebone:/lib/firmware$ export
> SLOTS=/sys/devices/platform/bone_capemgr/slots
> debian@beaglebone:/lib/firmware$ sudo echo "BB-PWM1-00A0.dtbo > $SLOTS"
> BB-PWM1-00A0.dtbo > /sys/devices/platform/bone_capemgr/slots

You can't "sudo echo >"

sudo sh -C "echo 'BB-PWM1-00A0.dtbo' > /sys/devices/platform/bone_capemgr/slots"

The source for all the overlays is available here:

https://github.com/beagleboard/bb.org-overlays/

Regards,

-- 
Robert Nelson
https://rcn-ee.com/

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Re: [beagleboard] Powering using SYS_5V

[PM]

Hello,

Thanks for your reponse.

I meant that after the power is beeing supplied to the BBB. I have to hit 
the POWER button in order to make it start.

I did not have to do this when it was powered from sector.

Le jeudi 11 mai 2017 15:27:50 UTC+2, cmbaker3 a écrit :
>
> You could add a toggle switch between the power supply and the BBB, or 
> more simply just not power the BBB down. Leave it up.
> Chad
>
> On 5/11/2017 7:54 AM, PM wrote:
>
> Hello,
>
> I am trying to power my BBB from an external 12V source.
>
> I convert it to 5V using D15V35F5S3 step down convertor from Pololu.
>
> When I connect it to SYS_5V it works but I have to always hit the power 
> button before the lights go on.
>
> Do you know any way to not to have to hit the POWER button ?
>
> Thank you very much.
> -- 
> For more options, visit http://beagleboard.org/discuss
> --- 
> You received this message because you are subscribed to the Google Groups 
> "BeagleBoard" group.
> To unsubscribe from this group and stop receiving emails from it, send an 
> email to beagleboard...@googlegroups.com .
> To view this discussion on the web visit 
> https://groups.google.com/d/msgid/beagleboard/8ed61f6b-415c-4418-832f-f696b9560441%40googlegroups.com
>  
> 
> .
> For more options, visit https://groups.google.com/d/optout.
>
>
> -- 
> Chad Baker Memphis, TN
>

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Re: [beagleboard] Set BBB Wireless as AP

[Robert Nelson]

Hi Eric,

look at:

/etc/default/bb-wl18xx

On Wed, May 10, 2017 at 9:06 PM,   wrote:
> I'm trying to configure my BBB Wireless (latest kernel) w/ the latest debian
> image as an access point.  By default, the device is already set, as I see
> BeagleBone- as an wireless SSID available to connect to.  Is there
> somewhere I can change this SSID and password, and assign a static IP too.

USE_WL18XX_IP_PREFIX = ip subnet block
USE_PERSONAL_SSID = BeagleBone
USE_PERSONAL_PASSWORD = password
USE_APPENDED_SSID = "-"


> I've tried making a new hostapd.conf entry on my own, but it's apparently
> getting overwritten somehow by the default configuration.  Any advice or

USE_GENERATED_HOSTAPD=no will defult to your custom /etc/hostapd.conf

> link to where I can step through configuring this would be highly
> appreciated... thank you!

Regards,

-- 
Robert Nelson
https://rcn-ee.com/

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Re: [beagleboard] Powering using SYS_5V

[Graham]

You need to put an oscilloscope on the 5 Volt output from the Pololu.
There is a rise time specification on the start-up Voltage rise time.
I think it needs to reach 5.0 Volts in less than 50 milliseconds.
Read the System Reference Manual

The Voltage can not overshoot more than a few tenths of a Volt.
The operating Voltage should be 5.0 Volts plus or minus 0.25 Volts.

If it overshoots or undershoots above 5.5 or below 4.5 for even a 
millisecond,
the PMIC will shut down.

A properly designed 12 Volt to 5 Volt converter will work fine, every time.

--- Graham

==



On Thursday, May 11, 2017 at 8:45:29 AM UTC-5, PM wrote:
>
> Hello,
>
> Thanks for your reponse.
>
> I meant that after the power is beeing supplied to the BBB. I have to hit 
> the POWER button in order to make it start.
>
> I did not have to do this when it was powered from sector.
>
> Le jeudi 11 mai 2017 15:27:50 UTC+2, cmbaker3 a écrit :
>>
>> You could add a toggle switch between the power supply and the BBB, or 
>> more simply just not power the BBB down. Leave it up.
>> Chad
>>
>> On 5/11/2017 7:54 AM, PM wrote:
>>
>> Hello,
>>
>> I am trying to power my BBB from an external 12V source.
>>
>> I convert it to 5V using D15V35F5S3 step down convertor from Pololu.
>>
>> When I connect it to SYS_5V it works but I have to always hit the power 
>> button before the lights go on.
>>
>> Do you know any way to not to have to hit the POWER button ?
>>
>> Thank you very much.
>> -- 
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>>  
>> 
>> .
>> For more options, visit https://groups.google.com/d/optout.
>>
>>
>> -- 
>> Chad Baker Memphis, TN
>>
>

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[beagleboard] USB power negotiation

[gorogbalazs]

Hello All,

could someone more experienced with USB help me please?
We would like to power a BeagleBone Black with the default Angstrom linux 
image solely over USB. We did a measurement, showing that the BBB eats c.a. 
150mA not doing anything, and 360mA with a benchmarking program running. 
USB2.0 can provide us 500mA.
We fear, that when we connect our peripherals, the 500mA-s would not be 
enough. Is there any way to use the device from a USB3.0 port (or USB3.0 
power) and negotiate for more power, e.g. 6-700mA? We can only use a single 
USB port, so power cables are not an option.

Thanks for the help in advance,
Balázs

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[beagleboard] LCD interfacing with beaglebone black

[chanduec007]

Hello,

I'm using Beaglebone black, want to interface the LCD(7" chipsee LCD cape) 
with latest SDK from TI. Can anyone help me to integrate BBB with LCD.

Want to know the steps/procedure from scratch to bring up LCD with 
beaglebone black.

Thanks,
Chandrashekar

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[beagleboard] Re: BBGW Internet-over-USB connectivity problem

[Evgeny Kirshin]

All right, I got it solved today. For those who will have the same problem, 
here is what helped me:

First of all, I booted from uSD with latest image taken from 
here: https://beagleboard.org/latest-images (I used the first one, which is 
at the moment "Jessie for BeagleBone  via 
microSD card").
Second, I had to re-install the RNDIS driver on Windows 8. I noticed that 
sometimes it gets stuck (even on BBB that I used previously) - when pinging 
8.8.8.8 (after adding the gateway to /sbin/route) it was getting stuck with 
the line output "PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data." and timed 
out after some time.
Uninstalling the RNDIS driver was also tricky. It looks like uninstalling 
the four "Beaglebone Driver..." items from "Programs and Features" did not 
clean uninstall the driver and I had the same settings of the RNDIS adapter 
when I plugged back the BBGW (i.e. I saw the same name of the network 
adapter as previously and my internet connection was already shared with 
the adapter). When I uninstalled RNDIS driver from Device Manager, it 
helped. The name of the RNDIS adapter changed and, I believe, other (hidden 
?) settings got cleared too, which solved my connectivity issues.

I hope this helps other struggling people.

On Wednesday, 10 May 2017 15:04:20 UTC-4, Evgeny Kirshin wrote:
>
> Hello,
>
> I have Beaglebone Black board, which I connected to a USB and was able to 
> set up Internet access from the BBB using network sharing on a Windows 8 
> PC. E.g. I could successfully ping google.com from the BBB.
>
> Recently I started playing with the Beaglebone Green Wireless and I cannot 
> setup Internet connection from the BBGW the same way as with the BBB. 
> The steps I follow are:
> 1. Install Beaglebone drivers (BONE_D64.exe).
> 2. Connect the BBGW to USB, wait until another "Local Area Connection" 
> appears (Linux USB Ethernet/RNDIS Gadget). 
> 3. Share Internet connection in the properties of my laptop's Ethernet 
> connection (with Internet access) to the "Local Area Connection".
> 4. In the properties of "Local Area Connection" (TCP/IP V4 page) choose to 
> Obtain IP address and DNS servers automatically.
> 5. Login to BBGW over SSH using putty.
> 6. Execute commands as follows:
>
>
> 
>
>
> It looks like it cannot reach even the PC that it is connected to. 
> Pinging to itself (192.168.7.2) works fine.
>
> I thought it could be a firewall/antivirus software, but disabling them 
> didn't change anything. Also, same procedure to share Internet to BBB works 
> well. 
>
> Does anyone have an idea what can be the issue?
>
> Thank you.
>

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[beagleboard] I²C reads on broken out bus #1 always return 0

['Torsten K.' via BeagleBoard]

Hi,

two weeks ago I received my BeagleBone Blue.

So far, I've managed to get

  - an OrangeRX DSMX receiver
  - a GP-735T GPS receiver
  - a Servo
  - and a 2S LiPo Akku

going, more or less without any problems.

However, all the I²C devices I connected to the available I²C bus #1 so far 
only work "one-way". I.e., I can send data to the devices and they do what 
they are supposed to, but I can't seem to get any data from a device to the 
BBBlue.

E.g., I've got a I²C DC motor controller (with more juice than the builtin 
one).
I can set my motors spinning, braking, reversing, ... using this 
controller, but I can't get any status information back from the device.

I already swapped all cables (and measured them) - they seem to be okay.

Can it have something to do with the I²C-settings in the dtb? How does 
u-boot select the right dtb anyway?

Thanks in advance,
Torsten

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Re: [beagleboard] Re: Flashing eMMC memory from SD card with Chipsee Debian Jessie

[Robert Nelson]

The Chipsee 7inch capes are fun as there is no eeprom (can bus is used
on those i2c pins)

Follow these instructions:

Step 1: Flash BBB without LCD plugged in:

Grab either image:

Jessie:
https://rcn-ee.net/rootfs/bb.org/testing/2017-05-07/lxqt-4gb/BBB-blank-debian-8.8-lxqt-4gb-armhf-2017-05-07-4gb.img.xz

Stretch:
https://rcn-ee.net/rootfs/bb.org/testing/2017-05-07/stretch-lxqt/BBB-blank-debian-stretch-lxqt-armhf-2017-05-07-4gb.img.xz

Use Etcher.io to write it to a microSD card:

https://etcher.io/

Stick the microSD into the BBB (without the LCD plugged in), hold down
the "boot" button, insert power, remove finger from the 'boot" button,
let it flash (cyclon led pattern), wait till the board power's down.


Step 2: Remove microSD, First Boot, update /boot/uEnv.txt

With the board booted:

Open /boot/uEnv.txt

There are two 7inch Chipsee Lcd's

BBB + 7 Chipsee with Cap touch:

dtb=am335x-boneblack-bbb-exp-c.dtb

BBB + 7 Chipsee with Res touch:

dtb=am335x-boneblack-bbb-exp-r.dtb

and we need to disable uboot_overlays (this lcd doesn't support that)..

So in /boot/uEnv.txt (if you have the chipsee 7inch lcd) you'll need
to make two changes:

dtb=am335x-boneblack-bbb-exp-c.dtb

and change:

enable_uboot_overlays=1

to:

#enable_uboot_overlays=1

Step 3: (internet connection required) update kernel

There's a known issue with the "r99" kernel installed by default with
this lcd (just fixed it yesterday) update to "r100" or just wait till
next Monday when new images are published..

cd /opt/scripts/tools/
git pull
sudo ./update_kernel.sh

you should see:

#-
#info: you are running: [4.4.62-ti-r99], latest is: [4.4.62-ti-r100] updating...

Step 4: Shutdown, plug in Chipsee LCD, (switch moved to eMMC) and apply power

Step 5: enjoy your lcd, lxqt will show up, touchscreen will track finger

Step 6: Profit

Regards,

-- 
Robert Nelson
https://rcn-ee.com/

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[beagleboard] Re: I²C reads on broken out bus #1 always return 0

[Graham]

If you are successfully sending I2C commands, then everything is hooked up 
correctly, and the device tree is properly configured.

I2C is a bi-directional bus.  If it works in one direction, then it has to 
work in the other direction down at the hardware level.

How are you "reading" the I2C devices?

What app or tool? or what program in what language?

--- Graham

==

On Thursday, May 11, 2017 at 11:44:40 AM UTC-5, Torsten K. wrote:
>
>
> Hi,
>
> two weeks ago I received my BeagleBone Blue.
>
> So far, I've managed to get
>
>   - an OrangeRX DSMX receiver
>   - a GP-735T GPS receiver
>   - a Servo
>   - and a 2S LiPo Akku
>
> going, more or less without any problems.
>
> However, all the I²C devices I connected to the available I²C bus #1 so 
> far only work "one-way". I.e., I can send data to the devices and they do 
> what they are supposed to, but I can't seem to get any data from a device 
> to the BBBlue.
>
> E.g., I've got a I²C DC motor controller (with more juice than the builtin 
> one).
> I can set my motors spinning, braking, reversing, ... using this 
> controller, but I can't get any status information back from the device.
>
> I already swapped all cables (and measured them) - they seem to be okay.
>
> Can it have something to do with the I²C-settings in the dtb? How does 
> u-boot select the right dtb anyway?
>
> Thanks in advance,
> Torsten
>

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[beagleboard] Re: Which files need for ADC, DMA and Timer interrupt

[TJF]

Have Check out libpruio . ADC is 
available in three different modes

   1. IO (ARM fetches value, sloppy timing)
   2. MM (fixed number of samples, several trigger options)
   3. RB (ring buffer for continuous measurement)


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[beagleboard] booting from usb HDD with BBB

[Andy Nelson]

Hi I'm running Freepbx (asterisk) for beagle bone black latest build/.

I can boot from and use an SD card no problem

but when I edit "nEnv.txt" to say
mcroot= /dev/sda2

I have a powered hub and it should use the Linux partition and it just does 
nothing instead of booting from USB.

totally stuck.:(   Any ideas

Andy.

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[beagleboard] Dimensions of BB Blue

[Clark Sann]

Anyone know the overall dimensions of the BB Blue?

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Re: [beagleboard] Re: I²C reads on broken out bus #1 always return 0

[William Hermans]

> On Thursday, May 11, 2017 at 11:44:40 AM UTC-5, Torsten K. wrote:
>>
>>
>> Hi,
>>
>> two weeks ago I received my BeagleBone Blue.
>>
>> So far, I've managed to get
>>
>>   - an OrangeRX DSMX receiver
>>   - a GP-735T GPS receiver
>>   - a Servo
>>   - and a 2S LiPo Akku
>>
>> going, more or less without any problems.
>>
>> However, all the I²C devices I connected to the available I²C bus #1 so
>> far only work "one-way". I.e., I can send data to the devices and they do
>> what they are supposed to, but I can't seem to get any data from a device
>> to the BBBlue.
>>
>> E.g., I've got a I²C DC motor controller (with more juice than the
>> builtin one).
>> I can set my motors spinning, braking, reversing, ... using this
>> controller, but I can't get any status information back from the device.
>>
>> I already swapped all cables (and measured them) - they seem to be okay.
>>
>> Can it have something to do with the I²C-settings in the dtb? How does
>> u-boot select the right dtb anyway?
>>
>> Thanks in advance,
>> Torsten
>>
>
So, you have to be doing something wrong. A beaglebone wont function unless
I2C is working. Show us what you're doing, that is not working. The
command, and the output. If you're using your own source, we need to see
that too. Keep in mind that I do also have hands on experience with writing
applications that use I2C in C, and most recent just a week ago. But no
personal hands on with the beaglebone blue. The hardware in this case
however should be exactly the same.

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Re: [beagleboard] booting from usb HDD with BBB

[William Hermans]

Need more information. e.g.we need to see your uboot environment file. Also
need to see the output from the serial debug port.

On Thu, May 11, 2017 at 12:07 PM, Andy Nelson  wrote:

>
> Hi I'm running Freepbx (asterisk) for beagle bone black latest build/.
>
> I can boot from and use an SD card no problem
>
> but when I edit "nEnv.txt" to say
> mcroot= /dev/sda2
>
> I have a powered hub and it should use the Linux partition and it just
> does nothing instead of booting from USB.
>
> totally stuck.:(   Any ideas
>
> Andy.
>
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[beagleboard] image vmlinuz-4.9.25-ti-r32 may break networking

[Mark Copper]

Could be broken hardware as well.  OTOH BBBW did work out of the box but 
networking failed after kernel update while everything else seems OK.

Symptoms: Immediately after flashing image, ifconfig and ip show usb 
interfaces but not wlan0--same as when booting from SD card. Later network 
probe processes hang and do not return (ip, ifconfig, lshw for example, but 
not lsusb). Nor can these processes be killed. 

Would like to know if anyone else is seeing this.  Would also be glad to 
provide additional information.  I also have additional BBBW cards so could 
try to duplicate.

Hope I'm not too far off base. Thanks for reading.


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Re: [beagleboard] Dimensions of BB Blue

[Andrew Kirch]

same as an altoids tin

On Thu, May 11, 2017 at 4:07 PM, Clark Sann  wrote:

> Anyone know the overall dimensions of the BB Blue?
>
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[beagleboard] Re: Where I can buy beagleboard-X15?

[alex . budnik . dev]

I'm also looking for a place to *buy BEAGLEBOARD-x15*.
*Did you find the answer to your question?*

вторник, 25 апреля 2017 г., 19:14:36 UTC+3 пользователь hant...@gmail.com 
написал:
>
> Where I can buy beagleboard-X15?

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[beagleboard] Where can I find BeagleBone Green source to change and compile device tree am335x-bonegreen.dts?

[bruce web]

Hi,

I am trying to modify BeagleBone Green device tree to support audio codec 
tlv320aic3105 for the customised cape, where can I find the BBG kernel 
source? I am not sure if I can use the device tree built from TI processor 
SDK.

Regards,
Bruce 

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[beagleboard] Booting from chroot

[Riko Ho]

Hi Everyone,

Is there any possibilty that I use qemu and boot rootfs from chroot ?

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谢谢,
Kind regards,
Riko Ho
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Re: [beagleboard] Dimensions of BB Blue

[Clark Sann]

That would be very helpful if I only had an altoids tin.

Anyone else have the actual dimensions...even roughly?

I'm making a prototype board tomorrow and need a rough dimension. I sure 
haven't been able to find it anywhere and I've searched all over the github 
project, the specs, etc. 

On Thursday, May 11, 2017 at 7:27:22 PM UTC-5, Andrew Kirch wrote:
>
> same as an altoids tin 
>
> On Thu, May 11, 2017 at 4:07 PM, Clark Sann  > wrote:
>
>> Anyone know the overall dimensions of the BB Blue?
>>
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>> https://groups.google.com/d/msgid/beagleboard/bf1ff708-441b-45cf-9867-55270730f5ed%40googlegroups.com
>>  
>> 
>> .
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>
>

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Re: [beagleboard] Booting from chroot

[William Hermans]

No. You don't boot from a chroot, you simply pivot from one rootfs to
another. I suggest you go out and do some reading and experiment on your
own. Additionally, chroot does not imply QEMU either.

On Thu, May 11, 2017 at 6:59 PM, Riko Ho  wrote:

> Hi Everyone,
>
> Is there any possibilty that I use qemu and boot rootfs from chroot ?
> --
>
>
>
>
>
>
> * /***/ Sent by Ubuntu LTS 16.04, 谢谢, Kind regards, Riko Ho /***/ *
>
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Re: [beagleboard] Re: Flashing eMMC memory from SD card with Chipsee Debian Jessie

[Radovan Chovan]

Thank you very much for your time and detailed answer.
But as I wrote, I need "backup" SD card with my custom stuff which I want 
to use for flashing eMMC in another BBBs.
I 've found script 
/opt/scripts/tools/eMMC/beaglebone-black-make-microSD-flasher-from-eMMC.sh
Is this the only option for me?

Dňa štvrtok, 11. mája 2017 18:51:15 UTC+2 RobertCNelson napísal(-a):
>
> The Chipsee 7inch capes are fun as there is no eeprom (can bus is used 
> on those i2c pins) 
>
> Follow these instructions: 
>
> Step 1: Flash BBB without LCD plugged in: 
>
> Grab either image: 
>
> Jessie: 
>
> https://rcn-ee.net/rootfs/bb.org/testing/2017-05-07/lxqt-4gb/BBB-blank-debian-8.8-lxqt-4gb-armhf-2017-05-07-4gb.img.xz
>  
>
> Stretch: 
>
> https://rcn-ee.net/rootfs/bb.org/testing/2017-05-07/stretch-lxqt/BBB-blank-debian-stretch-lxqt-armhf-2017-05-07-4gb.img.xz
>  
>
> Use Etcher.io to write it to a microSD card: 
>
> https://etcher.io/ 
>
> Stick the microSD into the BBB (without the LCD plugged in), hold down 
> the "boot" button, insert power, remove finger from the 'boot" button, 
> let it flash (cyclon led pattern), wait till the board power's down. 
>
>
> Step 2: Remove microSD, First Boot, update /boot/uEnv.txt 
>
> With the board booted: 
>
> Open /boot/uEnv.txt 
>
> There are two 7inch Chipsee Lcd's 
>
> BBB + 7 Chipsee with Cap touch: 
>
> dtb=am335x-boneblack-bbb-exp-c.dtb 
>
> BBB + 7 Chipsee with Res touch: 
>
> dtb=am335x-boneblack-bbb-exp-r.dtb 
>
> and we need to disable uboot_overlays (this lcd doesn't support that).. 
>
> So in /boot/uEnv.txt (if you have the chipsee 7inch lcd) you'll need 
> to make two changes: 
>
> dtb=am335x-boneblack-bbb-exp-c.dtb 
>
> and change: 
>
> enable_uboot_overlays=1 
>
> to: 
>
> #enable_uboot_overlays=1 
>
> Step 3: (internet connection required) update kernel 
>
> There's a known issue with the "r99" kernel installed by default with 
> this lcd (just fixed it yesterday) update to "r100" or just wait till 
> next Monday when new images are published.. 
>
> cd /opt/scripts/tools/ 
> git pull 
> sudo ./update_kernel.sh 
>
> you should see: 
>
> #- 
> #info: you are running: [4.4.62-ti-r99], latest is: [4.4.62-ti-r100] 
> updating... 
>
> Step 4: Shutdown, plug in Chipsee LCD, (switch moved to eMMC) and apply 
> power 
>
> Step 5: enjoy your lcd, lxqt will show up, touchscreen will track finger 
>
> Step 6: Profit 
>
> Regards, 
>
> -- 
> Robert Nelson 
> https://rcn-ee.com/ 
>

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