[beagleboard] Re: Python example of continuous analog in

[TJF]

Hi Mark!

Am Dienstag, 28. Juli 2020 23:25:15 UTC+2 schrieb Mark A. Yoder:
>
> The example also shows which device tree to edit to set the sampling rate 
> to 200k samples/second.


There's no need for manipulating device trees and rebooting, when doing ADC 
sampling by libpruio. All configuration can be done in the source from user 
space. Ie check out the example rb_file 

.

Regards

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Re: [beagleboard] Manufacturing a BeagleBone Blue variant

[Robert Nelson]

On Wed, Jul 29, 2020 at 6:10 AM  wrote:
>
> Hi all,
>
> I'm working on developing an robotics SBC (based on BeagleBone Blue), but 
> with some mods:
> - add 2x ethernet port (in addition to wi-fi)
> - add input/output protection
> - add additional serial I/O
> - swap barrel jack for micro-USB
> - redesign connectors/LEDs/buttons for enclosure
> - change UFL antennas to board traces
> - change eMMC to 16-32GB
> - change board shape slightly
>
> ...which make it impractical to just design an adapter board for the Blue.
>
> I wanted to seek advice from the BeagleBoard team on the best/cheapest way to 
> manufacture a board like this in smallish quantities (100-1000), and if it 
> makes sense to pay for assembly, are there any companies you could recommend?
>
> Also, are there any PCB fabs you could recommend?
> I use PCBWay for prototyping, but I'm not sure if it's sensible to use them 
> to manufacture a product.

Take a look at SeeedStudio:

https://www.seeedstudio.com/fusion.html

Just recently they have now started manufacturing the x15, BeagleBoard
xM and BeagleBone Black's..  Along with their existing Green product.

Regards,

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

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[beagleboard] Re: No ethernet connection to BBB when powered by 5V cable

[Chris Green]

jaka.koren.i...@gmail.com wrote:
> [-- multipart/alternative, encoding 7bit, 73 lines --]
> 
> [-- text/plain, encoding 7bit, charset: UTF-8, 28 lines --]
> 
> Hello, I am a newbie trying to use two Beaglebone Black boards within the 
> same lan network, and am having problems. Connecting them to PC with usb 
> cable works fine, and I can connect to *beaglebone.local* fine with putty, 
> and access built-in IDEs through web browser on windows.
> 
> The problems arise when I try to turn them on while powered by 5V cable, 
> without usb. The Ethernet cable to my network is plugged before boot, and 
> lights turn on as expected. But it appears the board does not broadcast 
> into the network, and cannot be connected to with ssh. I tried setting up a 
> static 
> ip address 
> 
>  
> when it was connected through usb, but it doesn't seem to help, putty 
> connection timeouts on direct IP connection, and cannot find* 
> beaglebone.local* hosts in the network. The weirdest thing is that the 
> ethernet connection worked fine a few weeks ago, this problem started only 
> recently.
> 
> I am booting the boards from an sd card with debian-9.9-iot image. What 
> could be the cause of this? Is there a solution that isn't updating the 
> image? Are the usb server and ethernet server on BBB different systems?
> 
Is there a DHCP server on the LAN you are connecting these BBBs to?
If it is a router with web configuration you should be able to see
what IP address it has assigned to the BBBs.

Alternatively if you have a Linux/Unix system of some sort on the LAN
then install arp-scan and run "arp-scan -l" and it will show all IP
addresses on the LAN. It should then be fairly easy to work out the
addresses of the BBBs.

-- 
Chris Green
·

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[beagleboard] No ethernet connection to BBB when powered by 5V cable

[jaka . koren . isys]

Hello, I am a newbie trying to use two Beaglebone Black boards within the 
same lan network, and am having problems. Connecting them to PC with usb 
cable works fine, and I can connect to *beaglebone.local* fine with putty, 
and access built-in IDEs through web browser on windows.

The problems arise when I try to turn them on while powered by 5V cable, 
without usb. The Ethernet cable to my network is plugged before boot, and 
lights turn on as expected. But it appears the board does not broadcast 
into the network, and cannot be connected to with ssh. I tried setting up a 
static 
ip address 

 
when it was connected through usb, but it doesn't seem to help, putty 
connection timeouts on direct IP connection, and cannot find* 
beaglebone.local* hosts in the network. The weirdest thing is that the 
ethernet connection worked fine a few weeks ago, this problem started only 
recently.

I am booting the boards from an sd card with debian-9.9-iot image. What 
could be the cause of this? Is there a solution that isn't updating the 
image? Are the usb server and ethernet server on BBB different systems?

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[beagleboard] Manufacturing a BeagleBone Blue variant

[david . shalavin]

Hi all,

I'm working on developing an robotics SBC (based on BeagleBone Blue), but 
with some mods:
- add 2x ethernet port (in addition to wi-fi)
- add input/output protection
- add additional serial I/O
- swap barrel jack for micro-USB
- redesign connectors/LEDs/buttons for enclosure
- change UFL antennas to board traces
- change eMMC to 16-32GB
- change board shape slightly

...which make it impractical to just design an adapter board for the Blue.

I wanted to seek advice from the BeagleBoard team on the best/cheapest way 
to manufacture a board like this in smallish quantities (100-1000), and if 
it makes sense to pay for assembly, are there any companies you could 
recommend?

Also, are there any PCB fabs you could recommend?
I use PCBWay for prototyping, but I'm not sure if it's sensible to use them 
to manufacture a product.

Thanks guys!

Regards,
David

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[beagleboard] Manufacturing a BeagleBone Blue variant

[david . shalavin]

Hi all,

I'm working on developing an robotics SBC (based on BeagleBone Blue), but 
with some mods:
- add 2x ethernet port (in addition to wi-fi)
- add input/output protection
- add additional serial I/O
- swap barrel jack for micro-USB
- redesign connectors/LEDs/buttons for enclosure
- change UFL antennas to board traces
- change eMMC to 16-32GB
- change board shape slightly

...which make it impractical to just design an adapter board for the Blue.

I wanted to seek advice from the BeagleBoard team on the best/cheapest way 
to manufacture a board like this in smallish quantities (100-1000), and if 
it makes sense to pay for assembly, are there any companies you could 
recommend?

Also, are there any PCB fabs you could recommend?
I use PCBWay for prototyping, but I'm not sure if it's sensible to use them 
to manufacture a product.

Thanks guys!

Regards,
David

-- 
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