[beagleboard] RE: Trying to Update and Upgrade and 503/Seth

[Mala Dies]

Hello,

I recently tried to update and upgrade. I was denied with an error 503. I 
think something went wrong on your servers or Debian's servers. Who knows?

Seth

P.S. I was just updating for security purposes and for other stuff that may 
be introduced into our LXQT distros. Please get back at me. Thank you until 
then. 

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[beagleboard] Re: ENC28J60 Click on PocketBeagle

[Steven Keller]

Additional notes:
When I got this first working I was using: Kernel Version 4.4.88

If you 
check: 
https://github.com/beagleboard/pocketbeagle/wiki/mikroBus%E2%84%A2-Click-Boards
it will tell you which Kernel and Overlay versions you need for a given 
Click board.


You might need to upgrade your kernel using:

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


See this for more info on kernel 
updating: https://elinux.org/Beagleboard:BeagleBoneBlack_Debian





On Friday, October 6, 2017 at 1:36:14 AM UTC-5, Steven Keller wrote:
>
> I got the ENC28J60 Click module functioning fairly quickly but I wanted to 
> share what I needed to do.  Hopefully, it will help the next person who 
> goes down this road.
>
> I used these headers from Digi-Key: SAM1204-18-ND (
> https://www.digikey.com/product-detail/en/samtec-inc/SSQ-118-03-T-D/SAM1204-18-ND/842
> )
>
> Ethernet Click Module: 
> https://www.digikey.com/product-detail/en/mikroelektronika/MIKROE-971/1471-1320-ND/4495684
>  
> 
> https://shop.mikroe.com/eth-click
>
>
> I am using Debian 9.1 2017-09-21
>
> I had to update the bb-cape-overlays by using the following command.  (In 
> order for this to work you need to have an internet connection through the 
> USB port.  Go here for more info:
>  
> http://ofitselfso.com/BeagleNotes/HowToConnectBeagleboneBlackToTheInternetViaUSB.php
>  
> 
>   
> )
>
> sudo apt update ; sudo apt install bb-cape-overlays
>
> More info on mikroBus Click boards support can be found here: 
> https://github.com/beagleboard/pocketbeagle/wiki/mikroBus%E2%84%A2-Click-Boards
>
> I edited /boot/uEnv.txt to the following:
>
>
> ###Overide capes with eeprom
> uboot_overlay_addr0=/lib/firmware/PB-SPI0-ETH-CLICK.dtbo
> #uboot_overlay_addr1=/lib/firmware/.dtbo
> #uboot_overlay_addr2=/lib/firmware/.dtbo
> #uboot_overlay_addr3=/lib/firmware/.dtbo
>
> After reboot, it "just worked"!
>
> My Download and Upload speeds from speedtest.net were about 2.7Mbit/sec.  
>  Not a speed demon but fast enough for IoT work.
>
>
> Next step is to get a NimbeLink cellular modem working.
>
>
>
> 
>
>
> 
>
>
> 
>
>
>

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Re: [beagleboard] Re: ENC28J60 Click on PocketBeagle

[Steven Keller]

I wonder if there is away to measure the processor overhead between the ENC28 
and the WIZ chip.  Network thruput is not drastically different but curios 
which is most efficent use of processor.

The ENC28 has Max SPI clock of 20Mhz so if I understand Graham's explanation we 
could go up to 16Mhz on spi.

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Re: [beagleboard] Re: ENC28J60 Click on PocketBeagle

[Graham]

I recompiled the '.dtbo' for 48 MHz SPI clock, which is the maximum for the 
Sitara.

Seems to work fine for a quick check.

Ran speedtest-cli, which moves a fair amount of data through it...
Download: 4.76 Mbit/s
Upload: 5.96 Mbit/s

Upload speed is probably constrained by my network, not the ETH-WIZ

--- Graham

==

On Saturday, October 7, 2017 at 6:13:29 PM UTC-5, William Hermans wrote:
>
>
>
> On Sat, Oct 7, 2017 at 4:02 PM, Robert Nelson  > wrote:
>
>>
>> How fast can you push the spi bus? I've just used the 12 mhz, as it was 
>> the default for one of the device tree in the docs..
>>
>>
>>

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Re: [beagleboard] PRU

[William Hermans]

On Fri, Oct 6, 2017 at 11:38 PM,  wrote:

> Hi,
>
> Hi, I am new to beaglebone black PRU can anybody help me to use PRU in
> c-language.
>
> Thank you
> Ashok
>

http://lmgtfy.com/?q=beaglebone+PRU+in+C

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Re: [beagleboard] Re: ENC28J60 Click on PocketBeagle

[William Hermans]

On Sat, Oct 7, 2017 at 4:02 PM, Robert Nelson 
wrote:

>
> How fast can you push the spi bus? I've just used the 12 mhz, as it was
> the default for one of the device tree in the docs..
>
> Regards,
>
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> 
> .
>
> For more options, visit https://groups.google.com/d/optout.
>

Yeah what Graham said. I seem to recall that the SPI bus could potentially
handle faster speeds too. But I've also read that above ~48Mhz the bus can
get noisy.

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Re: [beagleboard] Re: ENC28J60 Click on PocketBeagle

[Graham Haddock]

The possible bus frequencies are integer divisors of 48 MHz, so only option
above 24 MHz is 48 MHz.
Spec on the W5500 chip says it will run up to 80 MHz.
So, I will recompile the ".dtbo' for 48 and report.
--- Graham

==

On Sat, Oct 7, 2017 at 6:02 PM, Robert Nelson 
wrote:

>
>
> On Oct 7, 2017 5:30 PM, "Graham"  wrote:
>
> Steven:
>
> Thanks for pointing out speedtest-cli.
>
> I followed your tutorial and got my ETH-WIZ 10/100 Mbps Click running,
> since Robert released the overlay for that yesterday.
>
> The one addition to your tutorial is that it also required upgrading the
> kernel to 4.9 as part of the install, per Robert's instructions for the
> ETH-WIZ.
>
> As you say, it boots, and just works.
>
> Running speedtest-cli ...
> I get 3.3 Mbps down, and 4.6 Mbps up.
>
> Confirmed that the chip had negotiated a 100 Mbps connection, so not the
> connection.
>
> I note that, in reading the source for the '.dtbo', that the SPI clock is
> set to 12 MHZ.
> Recompiled the '.dtbo' with SPI clock at 24 MHz.
>
>
> How fast can you push the spi bus? I've just used the 12 mhz, as it was
> the default for one of the device tree in the docs..
>
> Regards,
>
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Re: [beagleboard] Re: ENC28J60 Click on PocketBeagle

[Robert Nelson]

On Oct 7, 2017 5:30 PM, "Graham"  wrote:

Steven:

Thanks for pointing out speedtest-cli.

I followed your tutorial and got my ETH-WIZ 10/100 Mbps Click running,
since Robert released the overlay for that yesterday.

The one addition to your tutorial is that it also required upgrading the
kernel to 4.9 as part of the install, per Robert's instructions for the
ETH-WIZ.

As you say, it boots, and just works.

Running speedtest-cli ...
I get 3.3 Mbps down, and 4.6 Mbps up.

Confirmed that the chip had negotiated a 100 Mbps connection, so not the
connection.

I note that, in reading the source for the '.dtbo', that the SPI clock is
set to 12 MHZ.
Recompiled the '.dtbo' with SPI clock at 24 MHz.


How fast can you push the spi bus? I've just used the 12 mhz, as it was the
default for one of the device tree in the docs..

Regards,

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[beagleboard] usb connection with android tablet

[nik600]

Dear all

i'd like to connect a BeagleBone Black REV.C to an Android tablet using a 
USB cable between the USB Client port and the micro USB port on the tablet.

Anyone of you has experience on it?

I've been able to communicate on ip 192.168.7.2 connecting the BBB with a 
po with linux, but if i connect it to an android tablet it seems that the 
network driver is not recognized.

Anyone has any experience about it?

Thanks

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[beagleboard] Re: Writing text files to a predetermined directory (Python) (Cloud9 IDE)?

[evangrcarter]

I'm sorry to see it looks like there was no response to your question! I'm 
actually trying to do the very same thing (but not with cloud9, I'm ssh-ing 
into the beaglebone black through a putty terminal window). But I am trying 
to create and manipulate a text document *in my PC *with beaglebone, did 
you ever find a way to do this? Thanks for reading!

Evan

On Thursday, March 31, 2016 at 10:57:44 AM UTC-7, vic.o...@gmail.com wrote:
>
> The project I'm working on involves hooking sensors up to a Beagle Bone 
> Black (Debian, Rev C) and saving the data the sensors receive to a text 
> file. I've been able to get my code to execute, but the issue is how it's 
> executing. I'm writing and uploading code (python) to the Beaglebone using 
> the Cloud9 IDE (enter 192.6...etc into browser bar). 
> The below example snippet of code illustrates how I'm trying to do this:
>
> import os
>
> name = raw_input('name the file: ')
> final_name = os.path.join('C:', 'Users', 'CPU', 'Desktop', name + '.txt') 
> #save location
> data = open(name + '.txt', 'a+')
>
> x = [i for i in range(0,50)] #basically here for testing purposes
>
> data.write(str(x) + '\n')
> data.close()
>
>
> As you can see, the goal is to save the text file the Beaglebone creates* to 
> the desktop of the computer it is attached to*. This code does create and 
> save a text file, but it isn't on the desktop of my CPU. It ends up placed 
> in the side bar of the IDE in the same folder, and there is nothing in 
> sight on my CPU's desktop. The image below should help clarify what I mean:
>
> 
>
>
> Am I using the os.path.join function incorrectly? I feel like this 
> wouldn't even create a file if I misused that function. 
>
> Any help is appreciated. 
>
>
>

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[beagleboard] Re: SDL2 with opengles 2.0 sgx530 on BBB

[piroxgst]

Hi Pier,
I am very interested in your work on SLD2 with opengl es on BBB, I am 
trying to use kivy on bbb and it requires SDL2.
Let me know is you still want to share your code..

Thanks, 
Pierre

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[beagleboard] Re: Using BB to measure power

[jerry395]

Lo solucionaste?, si es asi, como lo hiciste, gracias

El miércoles, 30 de octubre de 2013, 13:57:53 (UTC-5), jred...@gmail.com 
escribió:
>
> I'd like to use my BeagleBone Black to build a small power efficiency 
> station for my school. For that I plan to measure power consumption using a 
> current transformer and a voltage transformer, feed the data into a small & 
> fast database and show it through a web interface to the school staff.
> I see that 50 Hz are not a problem for BB ADCs, but I'm not sure at all 
> using them is a good idea.
> Intially I planned to use the same voltage I must measure to power the BB. 
> I'm starting from a circuit like the attached one (replacing the UA78M33 by 
> a UA7805CKCT which provides up to 1.5 A output)
>
>
> 
>
> Changing the R1/R2 divisor I can make the 220V signal lower , but I'd 
> always get a signal with a negative side (-0.9V - +0.9V) in the best case. 
> Same for the current transformer, after applying its output to a 100 ohms 
> resistor. So, first, is it an awful idea to use BB for this purpose? If 
> not, how can I avoid the negative part of the signal before feeding the BB 
> ADCs?
>
> Thanks in advance
>

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[beagleboard] PRU

[ashokkumar1232014]

Hi,

Hi, I am new to beaglebone black PRU can anybody help me to use PRU in 
c-language.

Thank you
Ashok

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[beagleboard] Re: PocketBeagle headers

[johnpwilson3]

I installed male headers on the top by filing some of the plastic from the 
area where they would have hit the Octavo chip.  Was simple and the headers 
now sit flat.



 






On Friday, September 29, 2017 at 8:05:14 AM UTC-4, Giulio Moro wrote:
>
> I got myself a PocketBeagle and I realized that I cannot fit headers on 
> the CPU components side because there is not enough clearance between the 
> pads and the Octavo chip for the plastic of the header to fit in. I am 
> using headers like these https://www.adafruit.com/product/2076, these 
> https://www.mouser.co.uk/ProductDetail/Gravitech/20Mx2-254mm or sockets 
> like these sockets  
> https://www.mouser.co.uk/ProductDetail/Gravitech/4Fx2-254mm/
> None of these would fit.
>
> The alternative would be to place the sockets on the bottom side and put 
> the solder on the components side, but it does not seem a great option. Are 
> there any sockets/headers that you use that fit on the components side?
>

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[beagleboard] Re: ENC28J60 Click on PocketBeagle

[Graham]

Steven:

Thanks for pointing out speedtest-cli.

I followed your tutorial and got my ETH-WIZ 10/100 Mbps Click running, 
since Robert released the overlay for that yesterday.

The one addition to your tutorial is that it also required upgrading the 
kernel to 4.9 as part of the install, per Robert's instructions for the 
ETH-WIZ.

As you say, it boots, and just works.

Running speedtest-cli ...
I get 3.3 Mbps down, and 4.6 Mbps up.

Confirmed that the chip had negotiated a 100 Mbps connection, so not the 
connection.

I note that, in reading the source for the '.dtbo', that the SPI clock is 
set to 12 MHZ.
Recompiled the '.dtbo' with SPI clock at 24 MHz.
Now, I get 3.8 Mbps down and 5.9 Mbps up, so the SPI transfer speed 
increase helps, but is not the bottleneck.


My network measures 71 down and 5.9 Up, so at least, I can max out my 
network connection on the uplink.

--- Graham

==

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[beagleboard] Re: Adding a USB Port to PocketBeagle

[Andy Bushnell]

Which pins are to +5 and gnd?  

Thanks!
Andy

On Tuesday, October 3, 2017 at 12:46:00 PM UTC-7, Dan Brown wrote:
>
> Issue was solved via help from the IRC channel.  Issue was the Extra pins 
> needing to be shorted to GND and 5V.
>
> I have now created a Expansion board that adds a Host port with proper 
> switching of power, and ESD protection.  Details are at:
> https://oshpark.com/shared_projects/IrizTrr1
>
> On Friday, September 29, 2017 at 10:01:15 AM UTC-4, Dan Brown wrote:
>>
>> I have added a USB Type A connector to my Pocket Beagle.  When I plug a 
>> Kingston 8GB Flash Key into the port and boot the PocketBeagle, I can see 
>> that the device is sort of detected, but I never get access to the Flash.
>>
>>

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Re: [beagleboard] Trying to compile adxl345 as a module in bbb but get error

[Robert Nelson]

On Sat, Oct 7, 2017 at 3:33 AM, Mrigendra Chaubey
 wrote:
> Hi all,
>
> I have downloaded a debian image
>
> Debian 8.7 2017-03-19 4GB SD LXQT
>
> I have attached a adxl345 accelerometer, and with user space tools its
> working fine.
> Now I am trying to attach a kernel driver i.e in adxl345. I put the source
> files in
> /home/debian/Desktop/adxl345
>
> and issued make.
> I get this error
>
> root@beaglebone:/home/debian/Desktop/adxl345# make
> make -C /lib/modules/4.4.54-ti-r93/build M=/home/debian/Desktop/adxl345
> modules
> make[1]: *** /lib/modules/4.4.54-ti-r93/build: No such file or directory.
> Stop.
> Makefile:13: recipe for target 'default' failed
> make: *** [default] Error 2
>
> I checked
>
> root@beaglebone:/lib/modules/4.4.54-ti-r93# ls
> extramodules.builtin modules.devname  modules.symbols.bin
> kernelmodules.builtin.bin modules.order
> modules.aliasmodules.dep modules.softdep
> modules.alias.bin  modules.dep.bin modules.symbols
>
> there is no build directory. I tried to update kernel headers
> sudo apt-get install linux-headers-linux-headers-4.4.54-ti-r93
>
> but it says
>
> E: Unable to locate package linux-headers-linux-headers-4.4.54-ti-r93
>
> How I am going to build the drivers?

Oh, it's there, run "sudo apt update" first to update your apt cache..

Regards,

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

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[beagleboard] Trying to compile adxl345 as a module in bbb but get error

[Mrigendra Chaubey]

Hi all,

I have downloaded a debian image

*Debian 8.7 2017-03-19 4GB SD LXQT * 


I have attached a adxl345 accelerometer, and with user space tools its 
working fine.
Now I am trying to attach a kernel driver i.e in adxl345. I put the source 
files in 
/home/debian/Desktop/adxl345

and issued make.
I get this error

*root@beaglebone:/home/debian/Desktop/adxl345# make*
*make -C /lib/modules/4.4.54-ti-r93/build M=/home/debian/Desktop/adxl345 
modules*
*make[1]: *** /lib/modules/4.4.54-ti-r93/build: No such file or directory.  
Stop.*
*Makefile:13: recipe for target 'default' failed*
*make: *** [default] Error 2*

I checked 

root@beaglebone:/lib/modules/4.4.54-ti-r93# ls 
extramodules.builtin modules.devname  modules.symbols.bin
kernelmodules.builtin.bin modules.order
modules.aliasmodules.dep modules.softdep
modules.alias.bin  modules.dep.bin modules.symbols

there is no build directory. I tried to update kernel headers 
sudo apt-get install linux-headers-linux-headers-4.4.54-ti-r93

but it says

*E: Unable to locate package linux-headers-linux-headers-4.4.54-ti-r93*

How I am going to build the drivers?




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[beagleboard] Re: ENC28J60 Click on PocketBeagle

[Steven Keller]

I installed speedtest-cli with this:

sudo apt install speedtest-cli


And ran it with this:

speedtest-cli



On Friday, October 6, 2017 at 7:48:03 PM UTC-5, Graham wrote:
> On Friday, October 6, 2017 at 1:36:14 AM UTC-5, Steven Keller wrote:
> 
> 
> 
> 
> 
> 
> My Download and Upload speeds from speedtest.net were about 2.7Mbit/sec.   
> Not a speed demon but fast enough for IoT work.
> 
> 
> 
> 
>  
> Steven:
> 
> 
> Thanks for the report. 
> 
> 
> How do you get speedtest.net to report the Down and up  speeds for a 
> PocketBeagle?
> 
> 
> --- Graham
> 
> 
> ==

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