Re: [beagleboard] Re: How to make a python program start on boot? May need to use sudo.

A cron job maybe? On 4/10/2016 7:13 PM, Dennis Lee Bieber wrote: > On Sat, 9 Apr 2016 21:12:00 -0700, John Baker > declaimed the following: > >> Hopefully I will be able to get systemd to start my GUI program. I would >> like it to start up upon resetting the BBB. Or maybe

Re: [beagleboard] Re: How to make a python program start on boot? May need to use sudo.

> > *W95 required a login, although* > * it was a blank password, as I recall).* > Getting way off topic here but . . . Windows 95 had zero passwd protection. You could set a passwd, but it would not do anything . . . so a person could enter a blank passwd at the screen saver, and just log back

Re: [beagleboard] file command in Debian, how to install?

I did indeed do an apt-cache search and some googling. I totally failed on this one. As you might imagine, the search term "file" gets a few hits. But, your suggestion to search "debian package file" nails it! I wouldn't have thought of that one, thank you! On Sunday, April 10, 2016 at

Re: [beagleboard] file command in Debian, how to install?

Greg, When in doubt, you can search the apt cache to see if the package exists. Such as . . . $ sudo apt-get update $ apt-cache search Additionally, If you do not know what the package name might be, and apt-cache search is not workign as you migth expect. You can google "debian package " and

Re: [beagleboard] file command in Debian, how to install?

That worked, many thanks! Greg -- 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

Re: [beagleboard] file command in Debian, how to install?

On Sun, Apr 10, 2016 at 4:08 PM, Greg wrote: > Hello, I recently compiled a TI based kernel based on Robert Nelson's > instructions: > > https://eewiki.net/display/linuxonarm/BeagleBone+Black > > I went with the TI 4.1 kernel since I wanted all of the PRU + remoteproc >

Re: [beagleboard] High CPU usage after loading a cape on Jessie

> > *I wonder if running strace, and piping stdout to a file would provide any > useful information on the subject. I'm pretty sure this would have to be > run explicitly as root( not sudo ).* > Not really useful in the least . . . On Sun, Apr 10, 2016 at 1:51 PM, William Hermans

[beagleboard] file command in Debian, how to install?

Hello, I recently compiled a TI based kernel based on Robert Nelson's instructions: https://eewiki.net/display/linuxonarm/BeagleBone+Black I went with the TI 4.1 kernel since I wanted all of the PRU + remoteproc stuff. This was also a Linux learning experience, and it went well and resulted in

Re: [beagleboard] High CPU usage after loading a cape on Jessie

> > *Any hints as to how to debug would be very welcome!* > I wonder if running strace, and piping stdout to a file would provide any useful information on the subject. I'm pretty sure this would have to be run explicitly as root( not sudo ). On Sun, Apr 10, 2016 at 1:36 PM, Charles Steinkuehler

Re: [beagleboard] High CPU usage after loading a cape on Jessie

On 4/10/2016 11:13 AM, Charles Steinkuehler wrote: > I am experimenting with getting Machinekit running on Debian Jessie, > and have run into an issue with loading capes. > > After I manually load a cape: > > $ SLOTS=/sys/devices/bone_capemgr.*/slots > $ sudo -A su -c "echo cape-bebopr-brdg:R2 >

[beagleboard] Python Tkinter on Debian Beaglebone: lost font styling when changed directory name

I have installed non-system fonts onto BeagleBone Black (Debian Jessie) and have been using them in a GUI created using python 2.7 script via Tkinter and tkFont. When I changed the name of the directory my file was stored in, these fonts stopped appearing in my python script GUI! I

Re: [beagleboard] Re: How to make a python program start on boot? May need to use sudo.

Dennis, I did both since I realized you were right on both. I had fixed the Tkinter problem a couple or three weeks ago and somehow when I was trying to get systemd to work, I must have clobbered Tkinter or something. So now I am reloading Debian Wheezy, bone50. I also was having trouble with

[beagleboard] Snappy Ubuntu Core on BBB--How do I enable serial ports?

I want to enable one or more of the available serial ports, in addition to UART0, but I've been unable to find any guidance on how to do this. Any help will be greatly appreciated. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are

Re: [beagleboard] 4D 4.3" Display Cape and Debian 8.3 Image compatability

I forgot to followup on this after seeing it multiple times. Touchscreen calibration still seems flaky. Sometimes it works for me. Other times not. Walt On Friday, February 26, 2016 at 6:41:24 PM UTC-6, RobertCNelson wrote: > On Fri, Feb 26, 2016 at 6:19 PM, Robert Nelson

Re: [beagleboard] High rate serial data communication question

> On Apr 10, 2016, at 9:52 AM, William Hermans wrote: > > #1 SPI has no slave mode driver in the kernel, so SPI( including mcSPI ) is > out of the question. See my previous answer on supporting McSPI slave mode. > #2 McSPI is limited to 16Mhz in the current kernel config, So

Re: [beagleboard] High rate serial data communication question

> On Apr 10, 2016, at 9:46 AM, evilwulfie wrote: > > Well my guru friend on the BBB software side said that the best way would be > USB to USB on 2 beagle bones Given that USB2 is 480Mbps, this might be the fastest interface, but given the overhead of the USB protocol,

Re: [beagleboard] High rate serial data communication question

> > *In terms of raw speed, the USB interface *can* be about 10% faster than > ethernet when used as an ethernet gadget interface.* > Also if I remember correctly, There is a post floating around on this group where I posted some iperf data concerning the USB g_ether driver. I seem to recall

Re: [beagleboard] High rate serial data communication question

Well my guru friend on the BBB software side said that the best way would be USB to USB on 2 beagle bones seems its as fast as the ethernet connection Running Ethernet over USB He also told me there is no slave driver for spi in the Linux kernel so thats a no go. On 4/10/2016 9:30 AM, John

Re: [beagleboard] High rate serial data communication question

That's still only 1/2 of what he wants. raw parallel data not faster ? On 4/10/2016 9:30 AM, John Syne wrote: > Oh, and SPI can run up to 48Mbps. > > Regards, > John > > > > >> On Apr 10, 2016, at 9:23 AM, evilwulfie > > wrote: >> >> high

Re: [beagleboard] High rate serial data communication question

Oh, and SPI can run up to 48Mbps. Regards, John > On Apr 10, 2016, at 9:23 AM, evilwulfie wrote: > > high speed I2C : 3,2 Mbit/s > > SPI UP TO 10 Mbps > > UART SERIAL 921600 <--- I think the highest serial rate > > So it looks like SPI is your highest

Re: [beagleboard] High rate serial data communication question

The fastest interface would be McASP which can clock at 50MHz and with four channels channels will give you just under 200Mbps. Regards, John > On Apr 10, 2016, at 9:23 AM, evilwulfie wrote: > > high speed I2C : 3,2 Mbit/s > > SPI UP TO 10 Mbps > > UART

Re: [beagleboard] High rate serial data communication question

high speed I2C : 3,2 Mbit/s SPI UP TO 10 Mbps UART SERIAL 921600 <--- I think the highest serial rate So it looks like SPI is your highest data rate other than ethernet. I Am not so sure that the BBB can keep with both interfaces saturated. But only further testing will see if

[beagleboard] High CPU usage after loading a cape on Jessie

I am experimenting with getting Machinekit running on Debian Jessie, and have run into an issue with loading capes. After I manually load a cape: $ SLOTS=/sys/devices/bone_capemgr.*/slots $ sudo -A su -c "echo cape-bebopr-brdg:R2 > $SLOTS" ...CPU usage maxes out and I have eight systemd-udevd

Re: [beagleboard] 4.1.20-bone20 image repeatedly hangs for a few seconds every few seconds

On Sun, Apr 10, 2016 at 10:23 AM, Virendra wrote: > Hi, > > I have built a custom image kernel_version 4.1.20-bone20 from Robert > Nelson. The image repeatedly hangs for a few seconds every few seconds. > Stops responding to keyboard input. This little program shows it. It

[beagleboard] 4.1.20-bone20 image repeatedly hangs for a few seconds every few seconds

Hi, I have built a custom image kernel_version 4.1.20-bone20 from Robert Nelson. The image repeatedly hangs for a few seconds every few seconds. Stops responding to keyboard input. This little program shows it. It prints the time through the loop. The sleep makes it at least 0.2 seconds.

[beagleboard] Snappy Ubuntu Core on BBB---how do I enable UARTs / serial ports?

There are 6 UARTs available on the BBB, but only one, UART0 ( /dev/ttyO0), is enabled by default. I need to enable some of the other available UARTs, but I can't find any guidance for doing this in Sanppy. -- For more options, visit http://beagleboard.org/discuss --- You received this

[beagleboard] High rate serial data communication question

I would use Ethernet. UDP packets if you don't care about losses. -- 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