If the operating system does not work, and the beaglebone AI will not load
a new one. What do you do?
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The easy way is going to be reading the value file for the gpio pin you
have set as input. In C:
FILE * f = fopen("/sys/class/gpio/gpio67/value", "r");
int val;
(void) fscanf(f, "%d", &val);
tada the variable val now holds a one or zero based on the state of the
gpio pin.
Another tutorial:
https
Thanks for your reply. I have scoped my regulator output and it shows a
steady 5.38 +- 0.05 V. Besides the power pins, I only have connections to
P9_19 and 20 to use i2c2 bus. The thing that really worries me about this
board is that when I remove all connected items, and attempt to power with
Has anyone had any success with JTAG emulation on the pocket beagle yet? I have
both Segger and NI debuggers as well as a variety of adaptors for Other demo
boards from tag-connect and others, though I can’t get any of them to work,
either because the pads are not aligned or because the protocol
writing the "driver" software would be much easier to deal with.
Why is I2C a better choice then SPI?
The BBB has both.
Regards,
Rob
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Hi there
On 13/02/17 13:01, evilwulfie wrote:
I use a single rail opamp to level convert and protect the analog input.
It's probably easier to use an SPI ADC (EG: MCP3201) running on 5V and
then do the level translation in the digital signal.
Regards,
Rob
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Your Welcome ;)
Op dinsdag 5 april 2016 10:11:00 UTC+2 schreef Rob van Schelven:
>
> @Beaglebone
>
> Clicking the link "official wiki page
> <https://elinux.org/Beagleboard:Updating_The_Software> " at
> https://beagleboard.org/latest-images shows a message abou
have permission to access /Beagleboard:Updating_The_Software on
this server."
As a newbe i wanted to update my BBB with the latest firmware. There are a
few recommended links on the latest-images web page. But there's no
explanation what the difference is between for example Wheezy and J
:40:46 UTC+2 schreef Rob van Schelven:
>
> Hi all,
>
> Does someone know if there is any information available to setup a
> development environment (IDE) running under MS Windows or Ubuntu (in
> virtual machine under windows) to develop C/C++ code for the BBB
>
> Thanks
>
Thanks John, i will :) I am bare metal embbeded developer for 30+ years but
getting started with (embedded) linux is not really self explaining ;)
Op maandag 4 april 2016 21:40:46 UTC+2 schreef Rob van Schelven:
>
> Hi all,
>
> Does someone know if there is any information availabl
RE: From user space or kernel module?
Sorry i am real new to linux. My intention is to create an executable that
access low level IO. I assume this is user space. In any case not a device
driver or so..
Op maandag 4 april 2016 21:40:46 UTC+2 schreef Rob van Schelven:
>
> Hi all,
&g
Thanks John!
Do you know if there's a dedicated C/C++ library available to access the
GPIO/SPI/I2C
Thanks, Rob
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To u
Hi all,
Does someone know if there is any information available to setup a
development environment (IDE) running under MS Windows or Ubuntu (in
virtual machine under windows) to develop C/C++ code for the BBB
Thanks
Rob
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You
y traps or other gotchas I Need
to be looking out for ?
Thanks in advance for your help.
Rob.
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ted.
Any solutions out there?
Try debug.
Does the modem want flow control or modem control lines?
Regards,
Rob
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nyt, btw, ping charles on that email thread.. we should have
slew rate controls ...
Also just my $0.02, I'd like to see the universal overlay loaded when
needed (via config-pin?) and not during boot by default. This will
continue to let anything else that loads overlays function as they were
nyt, btw, ping charles on that email thread.. we should have
slew rate controls ...
Also just my $0.02, I'd like to see the universal overlay loaded when
needed (via config-pin?) and not during boot by default. This will
continue to let anything else that loads overlays function as they were
Hello,
I also want two ore more 1-wire lines!
I tried different things but nothing helps.
Even 2 DTS-Modules does not work for me. The first you load works and the
second is ignored :-(
Thanks,
Robert
Am Montag, 2. März 2015 16:22:16 UTC+1 schrieb Dave Blomfield:
>
> Okay so that should read
Hello,
I use my BeagleBord Black to monitor my heating-system.
I use DS18S20 as temperature sensors.
In the moment there are 7 sensors connected but I need more of them. The
1-wire bus supports only 10.
How can I have an other pin as a 1-wire-bus-master ?
BTW: I describe my system on my webpag
I had purchased a number of RS232 capes
(http://elinux.org/CircuitCo:RS232_Cape_RevB Rev A1) before the Rev B came
out, I also have BBB's rev A6A, B, and C.
I'm needing to boot from the SD card, I've installed Angstrom on the SD
card and everything works well except when I go upto Rev C on the
It seems BBB Rev C forces you to press the button to boot from the SD card.
I have been unable to get it to boot from the SD otherwise. Tested on 6 BBB
Rev C (what you describe is what I see on Rev B and Rev A6A)
On Monday, January 27, 2014 2:59:56 PM UTC-5, john3909 wrote:
>
>
> On 1/27/14, 5:3
HI,
I'm trying to figure out how to use one of the TIMER pins to provide a
clocking signal to an external device and I'm having some trouble. The
default 24khz will do just fine for now, but eventually I may want to be
able to change the frequency in the future.
I'm using an image build from
Hi,
I'm trying to get things set up to use TIMER4 (or 5, 6, or 7) to provide
an external clock source to another component and I'm having some trouble.
For now I'm happy with just getting the standard 24khz clock, though I may
want to be able to modify the frequency in the future.
I'm using t
@Marc I didn't see your message. I think rebuilding u-boot is the way to
go. I will look into that now.
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There must be a way to set pullup/pulldown at boot time. Fighting against
the pullup is a possibility, but that means that I have to add a
"strong"pull down resistor, only for the occasional bootup.
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Just adding to the list.
I am seeing this on hard boot 1/20
on SHUTDOWN -r I am getting even more frequent failures, closer to 1/10.
On Wednesday, July 31, 2013 5:48:54 PM UTC-4, duckhunt...@gmail.com wrote:
>
> Hi guys,
>
> we have a problem with our Beagle Bone Black (A5C). We are using Ubun
I am having issues with installing node-serialport because of its 0.10+
dependency. I have attempted to compile node.js latest to the board but
that is a very slow and painful process (first attempt ran for ~4 hours
then power cut... I was not impressed)
Anyone have this package successfully w
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