Hi,
I tried in a couple of ways to get something out of the serial console
while booting (U-Boot, kernel, console,..)
This seems extremely unstable and random.
One device I tried is this[1] with 3.3V.
Another device is this[2].
Can you please advise which serial adapter to use?
Regards,
Hardware wise you need 3 to 5v level shifters. Unidirectional should be fine.
Software wise you should be able to use the hd44780 driver which is in the
upstream kernel 4.14.x or so.
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Hi,
On Wednesday, November 12, 2014 1:35:13 AM UTC+2, William Hermans wrote:
Maxim, for distro's like Debian which is slow moving for stability reason.
Who says that Debian is not using it? [1]
Regards,
Robert
[1]
Hi,
On Saturday, November 8, 2014 6:31:25 PM UTC+2, sixvolts wrote:
Any ideas how this compares to the wandboard quad? 4x Cortex-A9 vs 2x
Cortex-A15
Well the Cortex-A15 includes full hardware visualization, which the
Cortex-A9 lacks. If this new board with multiple Cortex-A15 and dual
On Monday, October 27, 2014 5:26:29 PM UTC+2, Alexander Rössler wrote:
Awesome! That's the future of 3D-printing not Auto-Desks proprietary
system or the Smoothie-Board.
Mechanical construction, electronics, software all open source!
... standing on shoulders of giants like the Machinekit
Hi,
On Tuesday, October 7, 2014 3:41:42 PM UTC+3, Justin Edwards wrote:
Was this ever fixed in any build? This is causing me to not be able to
use my BBB as my 3d printer controller. I'm actually using Charles's fix
above, but it is throwing the error so much that my heater cartridge
Hi,
I am a bit confused about which 3.14 or newer kernel to use.
Currently I use https://github.com/RobertCNelson/bb-kernel/tree/am33x-v3.14 as
described in the EEWiki and it works quite well for me. Is this end of
life? Or only the v3.14 branch of it?
Rob Nelson suggested in another thread:
Hi,
I made another attempt to read some analog values with the 3.14 RCN kernel.
How am I supposed to read analog values?
The only thing which gives something (strange) seems to be a hacked version
of the generic_buffer test of the iio framwork. Does anyone know what I am
doing wrong and/or
Hi Rob,
Thanks.
My problem was that I did not interpret the data properly.
I don't know why people print data in decimal and not directly in hex ;)
ADC Value: 14157877 0xd8(216) 0.094922 0x835(2101) 0.923291
ADC Value: 13043810 0xc7(199) 0.087451 0x862(2146) 0.943066
ADC Value: 15992896
Hi,
On Monday, July 28, 2014 6:20:26 PM UTC+3, Ankur Tank wrote:
Hello Experts,
I am using bealgebone black and Chipsee 7 LCD with capacitive touch
screen.
I have patch for Chipsee LCD support for 3.8 Linux kernel.
When i built Yocto for beaglebone black, i found that it uses Linux 3.14
Hi,
U-Boot# setenv autoload
no
U-Boot# setenv serverip
192.168.95.134
U-Boot# setenv ipaddr
192.168.95.130
try
If you get in u-boot a ping reply from your sever with
ping ${serverip}
networking should be OK and your problem is the tftp server setup.
The next thing to try would be if your tftp server works.
Is your tftp server running on 192.168.43.130 and does it really export a
file called uImage?
Hi,
On Wednesday, July 16, 2014 5:34:02 PM UTC+3, Gibson Justian wrote:
I pinged the device as Robert suggested and the output obtained is posted
below
ping failed; host 192.168.95.134 is not alive ,
You definitely have no network connectivity between your bone and your tftp
server.
How
On Wednesday, July 16, 2014 5:42:25 PM UTC+3, Gibson Justian wrote:
Hi ,
Robert as you suggested, I tried and below is the output
tftp localhost 69
tftp get uImage
Received 5076806 bytes in 1.6 seconds
tftp
OK cool, so this means your tftp server setup seems to be OK and we need to
Hi,
On Wednesday, July 16, 2014 5:44:59 PM UTC+3, Gibson Justian wrote:
Robert,
I use a VMware on which I run Ubuntu 14.04
in VMware do you have bridged networking configured for your Ubuntu guest?
If you go to a shell on your Ubuntu guest what do you see with
ifconfig
.134 anwhere?
Hi,
On Friday, July 11, 2014 8:31:59 AM UTC+3, Gibson Justian wrote:
Hi William and John ,
Thanks for reply!!!
The uEnv.txt that you have shared across uses the
kernel_file=zImage
and initrd_file=initrd.img but after the compilation of the yocto distro
1.6
Hi,
On Saturday, July 5, 2014 9:55:18 PM UTC+3, Gibson Justian wrote:
TFTP from server 192.168.43.130; our IP address is 192.168.43.10
Filename 'uImage'.
Load address: 0x8020
Loading: T T T T T T T T T T T T T T T T T T T T
Retry count exceeded; starting again
Is your tftp server
Hi,
On Saturday, June 7, 2014 9:21:20 PM UTC+3, suresh chauhan wrote:
Hi all,
I'm having the same problem. I have beagleboard xM Rev-c and ethernet not
working in uboot, works fine with Linux kernal. Beagleboard uboot can send
ping but not respnding to incoming ping message. Only works
Hi
On Thursday, June 5, 2014 9:35:03 AM UTC+3, Simon Platten wrote:
Having thought about what is happening over night...I still don't
understand why Remote debugging from host is 192.168.1.100 ???
I run Ubuntu 14.04 in Virtualbox on my Windows 7 x64 development system.
The I/P addresses
Hi Simon,
On Wednesday, May 28, 2014 9:53:24 AM UTC+3, Simon Platten wrote:
I have Eclipse Kepler running on Ubuntu 14.04 x64, I can build and remote
debug Java applications on the Beaglebone Black, but for some reason I
cannot remote debug C applications.
I can compile a C application
Hi,
on a 3.14 kernel I copied am335x-boneblack.dts and made my own:
am335x-boneblack-res-1.dts
to this I added:
/* -- define custom leds pinmux */
am33xx_pinmux {
traffic_leds_s0: traffic_leds_s0 {
pinctrl-single,pins =
0x78 (PIN_OUTPUT_PULLDOWN
Hi,
On Sunday, May 4, 2014 3:50:39 PM UTC+3, nath...@gmail.com wrote:
Thanks for all the responses.
I'm specifically looking for something that gets into embedded
kernel/driver development using the BBB. I don't have a ton of embedded
linux experience, although I've played around with it
@ags:
u-boot reads the fdt, probes stuff, adds things to the fdt, modifies things
in the fdt and passes this modified version on the GNU/Linux kernel.
Assuming you configured your kernel correctly you can inspect the fdt in
runtime. I did this on a beagle bone black (with the wrong memory
Hi,
What would you like to learn?
I mean do you already have an understanding how (Embedded) Linux works and
want to focus on the BBB?
Any specific requests?
In which part of the world should this be?
Shameless self promotion:
I will have my trainings[1] after summer also on BBB.
Regards,
Hi,
I don't have access to my lab at the moment, so I can not try it myself,
but can you rebuild a fdt and make a change in am335x-bone-common.dtsi?
Please also do:
cat /proc/meminfo before and after the change?
Just search for memory and replace it with:
memory {
Hi,
Check my comment here:
http://thread.gmane.org/gmane.comp.hardware.beagleboard.user/65797
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Hi,
On Thursday, April 17, 2014 7:48:50 PM UTC+3, Strawson wrote:
Hello all,
As (probably) most of you are aware, the most straightforward method of
changing the pwm period (frequency) is at boot by setting it in a .dts
overlay. This may be the solution for 90% of pwm users, but we have
Hi Jason,
On Monday, April 14, 2014 2:07:00 AM UTC+3, Jason Kridner wrote:
Just about to post this to http://beagleboard.org/blog, but it
wouldn't hurt to get a bit of community feedback before pushing this
out there
What I would be interested is software (binary) compatibility
Hi,
Did you try compile the cpupower tool [1] which comes with the kernel?
cpupower frequency-info works as advertised on a 3.13.x kernel and a beagle
bone black
On a beagle-xm it shows similar problems, but ...
... I think it actually runs on 1GHz: cpufreq stats: 300 MHz:0.00%, 600
On Friday, March 21, 2014 7:43:11 PM UTC+1, Florin Maticu wrote:
Hello World program for GSOC 2014.
Project: Debugging tools for LINUX INDUSTRIAL I/O SUBSYSTEM
... talking about iio ...
Here is something for you to debug on the beagle bone black:
I use a beagle bone black with a 3.13.6
Hi,
On Friday, March 7, 2014 2:55:05 AM UTC+2, rdbirt wrote:
Hi,
I have 3.13.5 booting and have resolved the phy issue so the network is
once more usable. Would a patch for anyone else trying to use 3.13 be
useful?
I got 3.13.15 running as well on the beagle-xm more or less with the
Hi,
The latest and greatest ELDK 5.5 contains an ipipe patch for a 3.10.28
kernel [1].
Unfortunately 3.10 is not very stable on the beagle-xm and does not support
rootfs over nfs. In case someone has 3.10.x with a working network
interface please let me know. I am aware of the trick with
Hi,
On Thursday, March 6, 2014 11:25:14 AM UTC+2, c...@isbd.net wrote:
All the examples and libraries (Python mostly) that I can find for
doing IO to the GPIO pins seem to handle only a bit at a time. This
is fine for things like driving relays and LEDs but makes little sense
for 8-bit
Hi,
On Saturday, February 22, 2014 2:17:24 PM UTC+2, rchrd...@gmail.com wrote:
Just a few thoughts ...
It is not possible to have a fully deterministic real-time operating
system on a processor that uses instruction/data caches. ie you have to
turn off the cacheing to achieve determinism
Hi Charles,
On Sunday, February 9, 2014 6:56:41 AM UTC+2, Charles Steinkuehler wrote:
I haven't tested with the 3.13 kernel, but this sounds like a good use
for my universal device tree overlay,
As far as I can see your universal device tree overlay expects to find
Hi,
As far as I can see your universal device tree overlay expects to find
/sys/devices/bone_capemgr.*/slots
which seems to be gone in 3.13.x
Are you up for porting it from v3.8 and maintaining it? ;)
Not me, so I am looking for some solution which is not a dead end;)
... but somehow
Hi,
Where does it state he is running on 3.13, I seem to be missing it ?
Sorry - to many thirteen s - it's 3.8.13 ;)
https://github.com/derekmolloy/boneDeviceTree/tree/master/DTSource3.8.13
Regards,
Robert
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Hi,
If I remember well Rob Nelson got a 3.12 kernel running on the beagle-xm.
This is what I tried [1].
After applying all the patches the kernel does not build (for beagleboard):
| CC kernel/irq/manage.o
| LD drivers/base/built-in.o
| CC kernel/power/console.o
|
Hi,
On Thursday, December 26, 2013 1:29:26 PM UTC+2, Robert P. J. Day wrote:
i would be *very* interested in seeing the (eventual?) solution to
this, as i am teaching an embedded linux course at the end of january
for a client that *specifically* wants it taught on the xM. so any
Hi,
On Tuesday, December 17, 2013 12:43:37 PM UTC+2, guer...@gmail.com wrote:
To summarize I have seen that on the BBB it is available the QNX, that it
is a Real Time capable OS:
http://community.qnx.com/sf/wiki/do/viewPage/projects.bsp/wiki/TiAm335Beaglebone
the alternative is install
On Wednesday, October 2, 2013 6:02:22 PM UTC+3, joeyme...@gmail.com wrote:
How can I setup TFTP server for the Beaglebone Black?
I have BB white and this is my uEnv.txt where I load kernel+fdt from tftp
and rootfs from nfs:
hostname=a335bone
kernel_addr_r=0x8020
expand_bootfile=setenv
Hi,
On Saturday, September 28, 2013 4:32:13 PM UTC+3, Harry May wrote:
This kernel modul may be useful for kernel module beginners (like myself)
to show usage of these kernel functions:
May I suggest a few formal things - without going into technical details?
*) try to write it in the
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