Re: [beagleboard] recommended linux distribution for BBB ?
On 12/02/2014 09:48 PM, ivo welch wrote: dear bbb experts. for the beaglebone black: I was playing around with the ubuntu 14.04 and 13.10 images, but this may not be the right route. (on ubuntu, I can't get the fb to work right, X is not installed, and it does not come up as 192.168.7.2. so, maybe I was going too exotic.) are the linux distributions on http://beagleboard.org/latest-images the two preferred distributions, as of late 2014? if so, the two distroes seem to be either debian or angstrom. the debian distro is about 7 months old, the angstrom one is about 1.5 years old (although the flasher is 3 months younger than the distro). their ages seem curiously dated. but if it works, it works! what do jason and other BBB key developers use? is angstrom or debian now the right supported mass choice? regards, /iaw -- 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 beagleboard+unsubscr...@googlegroups.com mailto:beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. per the website Debian is the official distro. I personally run Arch Linux ARM on all mine. As to your no X on whatever image, that could have been easily solved installing the desktop of your choice. Pretty much everything you asked for can be found on the main beagle site or the elinux pages for the beagles -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[beagleboard] Kernel-3.14.25 USB hub issue
Hello all. I originally moved from 3.8.13 to 3.14.17 to grant cryptography capabilities of the new kernel, and everything seemed okay until I had an issue regarding USB Babble interrupts. I could test for babble cases reliably as described here http://www.spinics.net/lists/linux-usb/msg107573.html. With kernel 3.14.17, when the Babble occurs, the log enters an endless loop of: [ 121.501538] CAUTION: musb: Babble Interrupt Occurred [ 121.506785] musb_stage0_irq 789: unhandled DISCONNECT transition (a_wait_bcon) and I could only escape this loop by detaching and attaching the device. However, I moved to 3.14.25 that seems to pass the Babble test, I could plug/unplug various devices and everything seemed okay. I connected a USB hub (powered) and I could reach it, but not the devices attached to it: Bus 001 Device 004: ID 0424:2514 Standard Microsystems Corp. USB 2.0 Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub When I tried to reset the USB hub, I kept getting these two lines until I detach the USB cable: [ 181.632279] usb 1-1: reset high-speed USB device number 2 using musb-hdrc [ 181.751895] usb 1-1: device descriptor read/64, error -71 Please find a full log of the 3.14.25 attached. Thank you for your time and help. Best Regards, Abd -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. dmesg.log Description: Binary data
Re: [beagleboard] recommended linux distribution for BBB ?
thank you. it is good to have this info here, because it will be more easy to google. I just searched a while longer on google to see where I overlooked obvious info on the recommended distro. it definitely isn't that obvious. all I could find was that since april, the BBB ships with debian. (even though I purchased mine later, they still had angstrom on it.) thanks again. will flash now... in general, it is hard for newbies to figure out what is on elinux and what is on beagleboard.org. moreover, unless one has perfect memory, rereading both sites when google fails is impossible. maybe I am just too old... (I know how to install normal linux on ordinary PCs. the magic that I see, compared to a PC distro, is in making the USB port come up as a network. the ubuntu distro may work, but gave me the aforementioned trouble when out of the box.) /iaw On Wednesday, December 3, 2014 4:01:56 PM UTC+8, don wrote: On 12/02/2014 09:48 PM, ivo welch wrote: dear bbb experts. for the beaglebone black: I was playing around with the ubuntu 14.04 and 13.10 images, but this may not be the right route. (on ubuntu, I can't get the fb to work right, X is not installed, and it does not come up as 192.168.7.2. so, maybe I was going too exotic.) are the linux distributions on http://beagleboard.org/latest-images the two preferred distributions, as of late 2014? if so, the two distroes seem to be either debian or angstrom. the debian distro is about 7 months old, the angstrom one is about 1.5 years old (although the flasher is 3 months younger than the distro). their ages seem curiously dated. but if it works, it works! what do jason and other BBB key developers use? is angstrom or debian now the right supported mass choice? regards, /iaw -- 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 beagleboard...@googlegroups.com javascript:. For more options, visit https://groups.google.com/d/optout. per the website Debian is the official distro. I personally run Arch Linux ARM on all mine. As to your no X on whatever image, that could have been easily solved installing the desktop of your choice. Pretty much everything you asked for can be found on the main beagle site or the elinux pages for the beagles -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] SPI : More CS lines
Thank you for your answer Mickae1. But I know how to use SPI with device tree overlay (I use it that way for my first lcd). I was wondering if it could be possible to declare a simple GPIO pin (via DTO for example) as a CS one. It would allow me to work with fbtft driver without having to alter it. Never mind, I am writing a new driver (called by dto) to emulate more CS pins. I will see if it can work at the required speed. Le mardi 2 décembre 2014 16:01:03 UTC+1, Mickae1 a écrit : your answer : http://hipstercircuits.com/enable-spi-with-device-tree-on-beaglebone-black-copy-paste/ Enjoy, Le Tue Dec 02 2014 at 15:58:53, mota...@gmail.com javascript: a écrit : Hi, I have to connect 2 lcd on a BBB via SPI interfaces (I use fbtft driver). I can only use SPI0 because SPI1 pins are used by I2C for cape eeprom. The problem is that SPI0 has only one CS pin. Is it possible to tell the SPI driver to use a GPIO pin as another CS line ? Am I forced to write a full driver to emulate CS with a GPIO pin ? Thanks in advance for your help. -- 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 beagleboard...@googlegroups.com javascript:. For more options, visit https://groups.google.com/d/optout. -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[beagleboard] apt-get install 'Something wicked happened...'
Hello All, Just setup Ubuntu 14.04 console on my BB-XM. I'm trying to install LXDE but problem is I keep seeing errors such as: Err http://ports.ubuntu.com/ubuntu-ports/ trusty/main libcap-ng0 armhf 0.7.3-1ubuntu2 Something wicked happened resolving 'ports.ubuntu.com:http' (-5 - No address associated with hostname) I've can ping google successfully I've run sudo apt-get clean sudo apt-get -y install lxde lxde-core lxde-icon-theme --fix-missing But still not working. Any thoughts? Thanks, Leo -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[beagleboard] Re: apt-get install 'Something wicked happened...'
Leo738 oo.he...@gmail.com wrote: [-- multipart/alternative, encoding 7bit, 111 lines --] [-- text/plain, encoding 7bit, charset: UTF-8, 34 lines --] Hello All, Just setup Ubuntu 14.04 console on my BB-XM. I'm trying to install LXDE but problem is I keep seeing errors such as: Err http://ports.ubuntu.com/ubuntu-ports/ trusty/main libcap-ng0 armhf 0.7.3-1ubuntu2 Something wicked happened resolving 'ports.ubuntu.com:http' (-5 - No address associated with hostname) It means that there's some sort of DNS problem. It looks a bit odd to me that 'ports.ubuntu.com:http', it shouldn't have the http on the end though that *might* simply be an error in the error message. Can you 'ping ports.ubuntu.com' ? -- Chris Green · -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] apt-get install 'Something wicked happened...'
http://askubuntu.com/questions/207849/cant-install-a-package-due-to-something-wicked-happened-resolving-error since you did not mention if you did all these steps please try these steps and see what you come up with. Side note: I've never actually run into this problem personally, but googled the error ( seemed a fairly common search term ) and came up with loads of hits. On Wed, Dec 3, 2014 at 2:08 AM, Leo738 oo.he...@gmail.com wrote: Hello All, Just setup Ubuntu 14.04 console on my BB-XM. I'm trying to install LXDE but problem is I keep seeing errors such as: Err http://ports.ubuntu.com/ubuntu-ports/ trusty/main libcap-ng0 armhf 0.7.3-1ubuntu2 Something wicked happened resolving 'ports.ubuntu.com:http' (-5 - No address associated with hostname) I've can ping google successfully I've run sudo apt-get clean sudo apt-get -y install lxde lxde-core lxde-icon-theme --fix-missing But still not working. Any thoughts? Thanks, Leo -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] Re: apt-get install 'Something wicked happened...'
*It looks a bit odd to me that 'ports.ubuntu.com:http', it shouldn't have the http on the end though that *might* simply be an error in the error message.* * Can you 'ping ports.ubuntu.com http://ports.ubuntu.com' ?* cl, that just a standard apt message with *:http' indicating protocol. On Wed, Dec 3, 2014 at 2:52 AM, c...@isbd.net wrote: Leo738 oo.he...@gmail.com wrote: [-- multipart/alternative, encoding 7bit, 111 lines --] [-- text/plain, encoding 7bit, charset: UTF-8, 34 lines --] Hello All, Just setup Ubuntu 14.04 console on my BB-XM. I'm trying to install LXDE but problem is I keep seeing errors such as: Err http://ports.ubuntu.com/ubuntu-ports/ trusty/main libcap-ng0 armhf 0.7.3-1ubuntu2 Something wicked happened resolving 'ports.ubuntu.com:http' (-5 - No address associated with hostname) It means that there's some sort of DNS problem. It looks a bit odd to me that 'ports.ubuntu.com:http', it shouldn't have the http on the end though that *might* simply be an error in the error message. Can you 'ping ports.ubuntu.com' ? -- Chris Green · -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] Re: apt-get install 'Something wicked happened...'
Come to think of it I did run into this problem once a long time ago, and for me *$ sudo apt-get update* fixed the problem for me personally. A rookie mistake I made in a hurry while trying to install packages without updating after a fresh install as I recall. I'd hesitate deleting the apt-lock file as this may be in place intentionally to avoid problematic packages. In this case I'd wait for input from Robert first. On Wed, Dec 3, 2014 at 3:17 AM, William Hermans yyrk...@gmail.com wrote: *It looks a bit odd to me that 'ports.ubuntu.com:http', it shouldn't have the http on the end though that *might* simply be an error in the error message.* * Can you 'ping ports.ubuntu.com http://ports.ubuntu.com' ?* cl, that just a standard apt message with *:http' indicating protocol. On Wed, Dec 3, 2014 at 2:52 AM, c...@isbd.net wrote: Leo738 oo.he...@gmail.com wrote: [-- multipart/alternative, encoding 7bit, 111 lines --] [-- text/plain, encoding 7bit, charset: UTF-8, 34 lines --] Hello All, Just setup Ubuntu 14.04 console on my BB-XM. I'm trying to install LXDE but problem is I keep seeing errors such as: Err http://ports.ubuntu.com/ubuntu-ports/ trusty/main libcap-ng0 armhf 0.7.3-1ubuntu2 Something wicked happened resolving 'ports.ubuntu.com:http' (-5 - No address associated with hostname) It means that there's some sort of DNS problem. It looks a bit odd to me that 'ports.ubuntu.com:http', it shouldn't have the http on the end though that *might* simply be an error in the error message. Can you 'ping ports.ubuntu.com' ? -- Chris Green · -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[beagleboard] Power failur .
Hi , I am working with BeagleBone Black. From today morning my BBB wont power on. There is no led blink even power led also. anybody can help me to resolve the problem. -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[beagleboard] Re: Beaglebone Black won't boot...
your BBB OS will be corrupted . . . Reflash your eMMC to resolve the problem . . .. . On Thursday, November 21, 2013 4:42:24 AM UTC+5:30, Sean Nored wrote: So we're working on our senior design project - I won't bore you with the details, but we're using Beaglebone Black to communicate serially with a laser. On to our problem, we've been using them for a while and were working on the serial stuff, when it froze and we had to remove the power to restart it. When we plugged it back in, we got the starting beaglebone bar at the top of the screen...but it never fully turned on. When we reset it again, it would no longer display anything. When ever we apply power now, the 3 user LEDs come on and the power LED comes on...then it just sits there. No output on the monitor at all. Any suggestions on how to fix this? We are new to BeagleBoards, so anything at all would be greatly appreciated! -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] recommended linux distribution for BBB ?
ivo, heh welcome to the old person memory failing club. But really most of this information sticks when you're very active in using the hardware / Linux distribution in question. The only real differences between these Linux hardware platform wise are all related to boot loaders. Otherwise, so long as the packages you need exist for armhf, they're near identical. As for the usbnet stuff, if you google usbnet and / or g_ether or g_multi you can find plenty of information on the subject. for setup, and usage etc. The kernel driver module for only usb networking is g_ether specifically. if you need / want usb networking, serial, and the neeto mass storage usb gadget, then g_multi is what you want / need. Do keep in mind, only one gadget driver can be loaded at one time. Debian is also updated monthly by Robert Nelson from these groups AFAIK . . . who also maintains the official images. On Wed, Dec 3, 2014 at 1:28 AM, ivo welch ivo...@gmail.com wrote: thank you. it is good to have this info here, because it will be more easy to google. I just searched a while longer on google to see where I overlooked obvious info on the recommended distro. it definitely isn't that obvious. all I could find was that since april, the BBB ships with debian. (even though I purchased mine later, they still had angstrom on it.) thanks again. will flash now... in general, it is hard for newbies to figure out what is on elinux and what is on beagleboard.org. moreover, unless one has perfect memory, rereading both sites when google fails is impossible. maybe I am just too old... (I know how to install normal linux on ordinary PCs. the magic that I see, compared to a PC distro, is in making the USB port come up as a network. the ubuntu distro may work, but gave me the aforementioned trouble when out of the box.) /iaw On Wednesday, December 3, 2014 4:01:56 PM UTC+8, don wrote: On 12/02/2014 09:48 PM, ivo welch wrote: dear bbb experts. for the beaglebone black: I was playing around with the ubuntu 14.04 and 13.10 images, but this may not be the right route. (on ubuntu, I can't get the fb to work right, X is not installed, and it does not come up as 192.168.7.2. so, maybe I was going too exotic.) are the linux distributions on http://beagleboard.org/latest-images the two preferred distributions, as of late 2014? if so, the two distroes seem to be either debian or angstrom. the debian distro is about 7 months old, the angstrom one is about 1.5 years old (although the flasher is 3 months younger than the distro). their ages seem curiously dated. but if it works, it works! what do jason and other BBB key developers use? is angstrom or debian now the right supported mass choice? regards, /iaw -- 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 beagleboard...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. per the website Debian is the official distro. I personally run Arch Linux ARM on all mine. As to your no X on whatever image, that could have been easily solved installing the desktop of your choice. Pretty much everything you asked for can be found on the main beagle site or the elinux pages for the beagles -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] Re: Beaglebone Black won't boot...
Output from the serial debug console would be handy . . . On Wed, Dec 3, 2014 at 3:38 AM, sarath ak sarathak...@gmail.com wrote: your BBB OS will be corrupted . . . Reflash your eMMC to resolve the problem . . .. . On Thursday, November 21, 2013 4:42:24 AM UTC+5:30, Sean Nored wrote: So we're working on our senior design project - I won't bore you with the details, but we're using Beaglebone Black to communicate serially with a laser. On to our problem, we've been using them for a while and were working on the serial stuff, when it froze and we had to remove the power to restart it. When we plugged it back in, we got the starting beaglebone bar at the top of the screen...but it never fully turned on. When we reset it again, it would no longer display anything. When ever we apply power now, the 3 user LEDs come on and the power LED comes on...then it just sits there. No output on the monitor at all. Any suggestions on how to fix this? We are new to BeagleBoards, so anything at all would be greatly appreciated! -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[beagleboard] cannot ssh beaglebone in eclipse
Good evening, i was trying to develop applications in eclipse and built the application successfully. then i tried to access the BBB remotely and i got an error as i attached. i connected board to PC through usb and i think hardware is ok since i can access it through puTTy. Is there any configuration problem in eclipse cause this error? help me.. -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. error.doc Description: MS-Word document
Re: [beagleboard] monitor fb (flickering and resolution) on ubuntu 13.10 vs 14.04
At boot . . . https://groups.google.com/forum/#!searchin/beagleboard/Robert|sort:date/beagleboard/Nb5TQxykUo4/9MIJYFQB43YJ Note the * cmdline=video=* comment by Robert. However, as with anything Linux, it is *very important* that you do not put your hardware into a mode it can not handle. SO make sure you know what you're doing before you make this change. On Tue, Dec 2, 2014 at 8:17 PM, ivo welch ivo...@gmail.com wrote: dear BBB users---I searched for ubuntu 14.04 but did not find anything related to this question. (it may be related to the uEnv.txt EDID question I posted earlier, but maybe not.) I have two BBB, one running ubuntu 13.10, the other running 14.04.1. the 13.10 distro produces a rock-solid text display on two different monitors. the 14.04.1 is subtly flickering on both. I believe both boot into the linux framebuffer, not a graphical environment (so no X and xrandr). both are right now connected to an asus vs229 monitor. it is a 1920x1080 full HD monitor. the reason why I suspect this is a beaglebone issue is that the same weird issue has also occurred on a DELL monitor. solid on 13.10, flicker on 14.04: ubuntu 13.10 ubuntu-armhf: the asus monitor tells me it selects a mode of 1680x1050 65KHz 60Hz. (solid) ubuntu 14.04.1 LTS arm: the asus monitor tells me it selects a mode of 1280x1024 64KHz 60Hz. (flicker) apparently, the command to control the linux framebuffer is fbset. by itself, it tells me the current resolution. (there is no edid or resolution info in /var/log/syslog as far as I can tell.) this is working. changing the framebuffer resolution is another matter, though. fbset -xres 1920 -yres 1080 tells me that this is an ioctl FBIOPUT_VSCREENINFO: Invalid argument. choosing a smaller resolution, like fbset -xres 640 -yres 480 leaves the current screen-res, but just displays on the top, so it does not really change the resolution at run-time. are there any ways to change the BBB resolution at run-time? /iaw PS: (interestingly, X is not included in the images, although the distro only uses about 370MB of 2GB or eMMC. I am not complaining---thanks to whoever packaged it, of course.) -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] monitor fb (flickering and resolution) on ubuntu 13.10 vs 14.04
As for X not being installed, judging by the size of your image, it sounds like you installed a console image. Which in my own option means you can install LXDE manually ( or x-manager of choice ). Again, in my opinion is better than starting with the LXDE image which is loaded / bloated with software. Robert also has an image resize script somewhere on those images, assuming you're using a bb.org testing / official image. Somewhere, but I do not know much about it, I use nfs root, and do all my own resizing manually using dd and / or tar. On Wed, Dec 3, 2014 at 4:25 AM, William Hermans yyrk...@gmail.com wrote: At boot . . . https://groups.google.com/forum/#!searchin/beagleboard/Robert|sort:date/beagleboard/Nb5TQxykUo4/9MIJYFQB43YJ Note the * cmdline=video=* comment by Robert. However, as with anything Linux, it is *very important* that you do not put your hardware into a mode it can not handle. SO make sure you know what you're doing before you make this change. On Tue, Dec 2, 2014 at 8:17 PM, ivo welch ivo...@gmail.com wrote: dear BBB users---I searched for ubuntu 14.04 but did not find anything related to this question. (it may be related to the uEnv.txt EDID question I posted earlier, but maybe not.) I have two BBB, one running ubuntu 13.10, the other running 14.04.1. the 13.10 distro produces a rock-solid text display on two different monitors. the 14.04.1 is subtly flickering on both. I believe both boot into the linux framebuffer, not a graphical environment (so no X and xrandr). both are right now connected to an asus vs229 monitor. it is a 1920x1080 full HD monitor. the reason why I suspect this is a beaglebone issue is that the same weird issue has also occurred on a DELL monitor. solid on 13.10, flicker on 14.04: ubuntu 13.10 ubuntu-armhf: the asus monitor tells me it selects a mode of 1680x1050 65KHz 60Hz. (solid) ubuntu 14.04.1 LTS arm: the asus monitor tells me it selects a mode of 1280x1024 64KHz 60Hz. (flicker) apparently, the command to control the linux framebuffer is fbset. by itself, it tells me the current resolution. (there is no edid or resolution info in /var/log/syslog as far as I can tell.) this is working. changing the framebuffer resolution is another matter, though. fbset -xres 1920 -yres 1080 tells me that this is an ioctl FBIOPUT_VSCREENINFO: Invalid argument. choosing a smaller resolution, like fbset -xres 640 -yres 480 leaves the current screen-res, but just displays on the top, so it does not really change the resolution at run-time. are there any ways to change the BBB resolution at run-time? /iaw PS: (interestingly, X is not included in the images, although the distro only uses about 370MB of 2GB or eMMC. I am not complaining---thanks to whoever packaged it, of course.) -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] Re: apt-get install 'Something wicked happened...'
Thanks all for the replies. Pinging works: ubuntu@arm:~$ ping ports.ubuntu.com PING ports.ubuntu.com (91.189.88.140) 56(84) bytes of data. 64 bytes from sawo.canonical.com (91.189.88.140): icmp_seq=1 ttl=49 time= 19.5 ms 64 bytes from sawo.canonical.com (91.189.88.140): icmp_seq=2 ttl=49 time= 17.5 ms 64 bytes from sawo.canonical.com (91.189.88.140): icmp_seq=3 ttl=49 time= 18.7 ms Similar problems with update: sudo apt-get update [sudo] password for ubuntu: Ign http://repos.rcn-ee.net trusty InRelease Ign http://ports.ubuntu.com trusty InRelease Ign http://ports.ubuntu.com trusty-updates InRelease Err http://repos.rcn-ee.net trusty Release.gpg Something wicked happened resolving 'repos.rcn-ee.net:http' (-5 - No address associated with hostname) Hit http://ports.ubuntu.com trusty Release.gpg Hit http://ports.ubuntu.com trusty-updates Release.gpg Hit http://ports.ubuntu.com trusty Release Hit http://ports.ubuntu.com trusty-updates Release Hit http://repos.rcn-ee.net trusty Release Hit http://ports.ubuntu.com trusty/main armhf Packages Ign http://repos.rcn-ee.net trusty/main armhf Packages/DiffIndex Hit http://ports.ubuntu.com trusty/universe armhf Packages Hit http://ports.ubuntu.com trusty/multiverse armhf Packages Hit http://ports.ubuntu.com trusty/main Translation-en Hit http://ports.ubuntu.com trusty/multiverse Translation-en Hit http://ports.ubuntu.com trusty/universe Translation-en Hit http://ports.ubuntu.com trusty-updates/main armhf Packages Hit http://ports.ubuntu.com trusty-updates/universe armhf Packages Hit http://ports.ubuntu.com trusty-updates/multiverse armhf Packages Hit http://ports.ubuntu.com trusty-updates/main Translation-en Hit http://ports.ubuntu.com trusty-updates/multiverse Translation-en Hit http://ports.ubuntu.com trusty-updates/universe Translation-en Ign http://ports.ubuntu.com trusty/main Translation-en_US Ign http://ports.ubuntu.com trusty/multiverse Translation-en_US Ign http://ports.ubuntu.com trusty/universe Translation-en_US Hit http://repos.rcn-ee.net trusty/main armhf Packages Ign http://repos.rcn-ee.net trusty/main Translation-en_US Ign http://repos.rcn-ee.net trusty/main Translation-en W: Failed to fetch http://repos.rcn-ee.net/ubuntu/dists/trusty/Release.gpg Something wicked happened resolving 'repos.rcn-ee.net:http' (-5 - No address associated with hostname) E: Some index files failed to download. They have been ignored, or old ones used instead. A clean seems to temporary fix the issue: ubuntu@arm:~$ sudo apt-get update Ign http://repos.rcn-ee.net trusty InRelease Ign http://ports.ubuntu.com trusty InRelease Ign http://ports.ubuntu.com trusty-updates InRelease Hit http://ports.ubuntu.com trusty Release.gpg Get:1 http://ports.ubuntu.com trusty-updates Release.gpg [933 B] Hit http://ports.ubuntu.com trusty Release Get:2 http://ports.ubuntu.com trusty-updates Release [62.0 kB] Get:3 http://repos.rcn-ee.net trusty Release.gpg [819 B] Hit http://ports.ubuntu.com trusty/main armhf Packages Hit http://repos.rcn-ee.net trusty Release Hit http://ports.ubuntu.com trusty/universe armhf Packages Hit http://ports.ubuntu.com trusty/multiverse armhf Packages Hit http://ports.ubuntu.com trusty/main Translation-en Hit http://ports.ubuntu.com trusty/multiverse Translation-en Hit http://ports.ubuntu.com trusty/universe Translation-en Get:4 http://ports.ubuntu.com trusty-updates/main armhf Packages [327 kB] Hit http://repos.rcn-ee.net trusty/main armhf Packages Get:5 http://ports.ubuntu.com trusty-updates/universe armhf Packages [218 kB] Get:6 http://ports.ubuntu.com trusty-updates/multiverse armhf Packages [7,721 B] Hit http://ports.ubuntu.com trusty-updates/main Translation-en Hit http://ports.ubuntu.com trusty-updates/multiverse Translation-en Hit http://ports.ubuntu.com trusty-updates/universe Translation-en Ign http://ports.ubuntu.com trusty/main Translation-en_US Ign http://ports.ubuntu.com trusty/multiverse Translation-en_US Ign http://ports.ubuntu.com trusty/universe Translation-en_US Ign http://repos.rcn-ee.net trusty/main Translation-en_US Ign http://repos.rcn-ee.net trusty/main Translation-en Fetched 616 kB in 18s (33.8 kB/s) Reading package lists... Done But trying to install LXDE brings me back to same issue: sudo apt-get install lxde lxde-core lxde-icon-theme displays loads of packages. 0 upgraded, 365 newly installed, 0 to
[beagleboard] Re: apt-get install 'Something wicked happened...'
Further to my last message I believe I've rectified the problem. I was using non-standard DNS servers. Restoring them to ISP standard servers seems to have fixed the issue. Thanks again for the help. Leo On Wednesday, 3 December 2014 09:08:00 UTC, Leo738 wrote: Hello All, Just setup Ubuntu 14.04 console on my BB-XM. I'm trying to install LXDE but problem is I keep seeing errors such as: Err http://ports.ubuntu.com/ubuntu-ports/ trusty/main libcap-ng0 armhf 0.7.3-1ubuntu2 Something wicked happened resolving 'ports.ubuntu.com:http' (-5 - No address associated with hostname) I've can ping google successfully I've run sudo apt-get clean sudo apt-get -y install lxde lxde-core lxde-icon-theme --fix-missing But still not working. Any thoughts? Thanks, Leo -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[beagleboard] gpio works in system but not in hardware
Hi, i test with selfcompiled kernels (3.16.5 and 3.18.0). I can export gpio-pins and can set/unset the values for direction and value in the /sys/class/gpio. But on the beagleboard no pin change his state. I.e. i will change the pin 9 on the P8-plug then i use the follow commands in the gpio-directory echo 136 export echo out ./gpio136/direction echo 1 ./gpio136/value With cat ./gpio136/value it returns the value 1. Thats ok. But the pin on the board to stay at low-level. The board works fine with a prebuild linux-installation i.e. ubuntu. Bye Andreas -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] recommended linux distribution for BBB ?
On Wed, Dec 3, 2014 at 2:28 AM, ivo welch ivo...@gmail.com wrote: thank you. it is good to have this info here, because it will be more easy to google. I just searched a while longer on google to see where I overlooked obvious info on the recommended distro. it definitely isn't that obvious. all I could find was that since april, the BBB ships with debian. (even though I purchased mine later, they still had angstrom on it.) thanks again. will flash now... in general, it is hard for newbies to figure out what is on elinux and what is on beagleboard.org. moreover, unless one has perfect memory, rereading both sites when google fails is impossible. maybe I am just too old... Images on beagleboard.org are official, tested, etc. However if you would actually have booted the debian image from beagleboard.org, you would have noticed a site listed over ssh/serial/etc.. That mentioned a place for faq's on elinux: FAQ: http://elinux.org/Beagleboard:BeagleBoneBlack_Debian Now if you go to that site, you'll noticed unofficial snapshots of newer images below that. Regards, -- Robert Nelson http://www.rcn-ee.com/ -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[beagleboard] Re: apt-get install 'Something wicked happened...'
Leo738 oo.he...@gmail.com wrote: [-- multipart/alternative, encoding 7bit, 114 lines --] [-- text/plain, encoding 7bit, charset: UTF-8, 45 lines --] Further to my last message I believe I've rectified the problem. I was using non-standard DNS servers. Restoring them to ISP standard servers seems to have fixed the issue. Exactly what I was suggesting! :-) -- Chris Green · -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[beagleboard] Re: apt-get install 'Something wicked happened...'
Leo738 oo.he...@gmail.com wrote: [-- multipart/alternative, encoding 7bit, 1136 lines --] [-- text/plain, encoding quoted-printable, charset: UTF-8, 290 lines --] Thanks all for the replies. Pinging works: ubuntu@arm:~$ ping ports.ubuntu.com PING ports.ubuntu.com (91.189.88.140) 56(84) bytes of data. 64 bytes from sawo.canonical.com (91.189.88.140): icmp_seq=1 ttl=49 time= 19.5 ms 64 bytes from sawo.canonical.com (91.189.88.140): icmp_seq=2 ttl=49 time= 17.5 ms 64 bytes from sawo.canonical.com (91.189.88.140): icmp_seq=3 ttl=49 time= 18.7 ms Similar problems with update: sudo apt-get update [sudo] password for ubuntu: Ign http://repos.rcn-ee.net trusty InRelease Ign http://ports.ubuntu.com trusty InRelease Ign http://ports.ubuntu.com trusty-updates InRelease Err http://repos.rcn-ee.net trusty Release.gpg Something wicked happened resolving 'repos.rcn-ee.net:http' (-5 - No address associated with hostname) Hit http://ports.ubuntu.com trusty Release.gpg Hit http://ports.ubuntu.com trusty-updates Release.gpg Hit http://ports.ubuntu.com trusty Release You seem to have an *intermittent* DNS problem, ports.ubuntu.com works now but repos.rcn-ee.net has stopped working. I think your fundamental problem is with your internet connection and/or ISP, nothing to do with BBB or Ubuntu. -- Chris Green · -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] Re: apt-get install 'Something wicked happened...'
On Wed, Dec 3, 2014 at 9:46 AM, c...@isbd.net wrote: Leo738 oo.he...@gmail.com wrote: [-- multipart/alternative, encoding 7bit, 1136 lines --] [-- text/plain, encoding quoted-printable, charset: UTF-8, 290 lines --] Thanks all for the replies. Pinging works: ubuntu@arm:~$ ping ports.ubuntu.com PING ports.ubuntu.com (91.189.88.140) 56(84) bytes of data. 64 bytes from sawo.canonical.com (91.189.88.140): icmp_seq=1 ttl=49 time= 19.5 ms 64 bytes from sawo.canonical.com (91.189.88.140): icmp_seq=2 ttl=49 time= 17.5 ms 64 bytes from sawo.canonical.com (91.189.88.140): icmp_seq=3 ttl=49 time= 18.7 ms Similar problems with update: sudo apt-get update [sudo] password for ubuntu: Ign http://repos.rcn-ee.net trusty InRelease Ign http://ports.ubuntu.com trusty InRelease Ign http://ports.ubuntu.com trusty-updates InRelease Err http://repos.rcn-ee.net trusty Release.gpg Something wicked happened resolving 'repos.rcn-ee.net:http' (-5 - No address associated with hostname) Hit http://ports.ubuntu.com trusty Release.gpg Hit http://ports.ubuntu.com trusty-updates Release.gpg Hit http://ports.ubuntu.com trusty Release You seem to have an *intermittent* DNS problem, ports.ubuntu.com works now but repos.rcn-ee.net has stopped working. double check your dns, repos.rcn-ee.net isn't setup with a fixed ip.. Regards, -- Robert Nelson http://www.rcn-ee.com/ -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[beagleboard] BeagleBone Black face detection using EasyN IP Camera
As i'm trying to connect my beaglebone black with EasyN ip camera in a network using a router to connect beagleboard with the IP camera , but i couldn't do that at all , i want to connect them with each other to use the EasyN ip camera in face detection program using python , how can i do this project ?? thanks in advance. -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] Audio capture issue with BeagleBone Black and Audio Cape Rev B
From: Dien Nguyen nguyentienhoangd...@gmail.com Reply-To: beagleboard@googlegroups.com beagleboard@googlegroups.com Date: Tuesday, December 2, 2014 at 6:35 PM To: beagleboard@googlegroups.com beagleboard@googlegroups.com Subject: Re: [beagleboard] Audio capture issue with BeagleBone Black and Audio Cape Rev B Hi John, Have you tried to record with external microphone? You have to bias the microphone, but the audio cape didn’t implement the microphone bias circuitry so you will have to bias the microphone externally for it to work. If you search for the TLV320AIC3106EVM schematic, you can see how to bias the microphone. The recording works fine if I connect the Audio Cape directly to the speaker source (a tablet) with a male-to-male 3.5mm cable. In case of using external microphone, the Audacity Frequency Analysis shows there is no frequency that is higher than 3KHz. I tried the same test with USB Sound Card and it works fine. I haven’t checked the audio bandwidth, but if I use a sampling rate of 96KHz, the audio quality sounds fine. Do you have some special setting for alsamixer? The only settings I change is Press F4 for Capture, make “Line Line2 Bypass” = 100 and “PGA” = 50 Here is the command I use: arecord -c1 -f S32_LE -r 96000 -t wav -vv test.wav or aplay -C -c1 -f S32_LE -r 96000 -t wav -vv test.wav I use the second command because my debugger gets confused when loading alsa-util debug symbols. After all, arecord is just a soft link to aplay. Regards, John Thanks, Dustin On Tuesday, December 2, 2014 4:10:12 AM UTC+7, john3909 wrote: On 12/1/14, 10:27 AM, Nicolae Rosia nicola...@gmail.com javascript: wrote: Hello, The clock is wrong. For some reason the clock clock rate is not changed to 12MHz as set in dts file but to 24MHz (ti,codec-clock-rate = 1200;). If you change the clock to 24MHz in your dts, it will work as expected. I¹m not sure that is how this is supposed to work. Surely the DTS defines the clock rate rather than reflecting the clock rate? My guess is that the ALSA subsystem is reading the DTS codec-clock-rate, but the MCASP_AHCLKX isn¹t been set correctly by the MCASP code and simply defaulting to 24MHz. Regards, John Regards, Nicolae Rosia. On Mon, Dec 1, 2014 at 4:42 PM, Dien Nguyen nguyentie...@gmail.com javascript: wrote: Hi Jesse, Tried out with 48KHz, same issue occurred. Have you recorded and played successfully with any kernel version? Thanks, Dustin On Mon, Dec 1, 2014 at 2:05 PM, Jesse Cobra jesse...@gmail.com javascript: wrote: Curious what happens if you try 48k sampling? On Nov 30, 2014 9:37 PM, Dien Nguyen nguyentie...@gmail.com javascript: wrote: Hi John, Did you solve the issue yet, may you please share how to fix it? We also tried with 3.18 and the issue is still there. Thanks, Dustin On Mon, Dec 1, 2014 at 12:29 PM, John Syn john...@gmail.com javascript: wrote: From: Dien Nguyen nguyentie...@gmail.com javascript: Reply-To: beagl...@googlegroups.com javascript: beagl...@googlegroups.com javascript: Date: Sunday, November 30, 2014 at 7:14 PM To: beagl...@googlegroups.com javascript: beagl...@googlegroups.com javascript: Subject: [beagleboard] Audio capture issue with BeagleBone Black and Audio Cape Rev B Hi All, We tried the Audio Cape Rev B with BeagleBone Black. The kernel version is 3.14.17 (https://github.com/RobertCNelson/bb-kernel.git branch am33x-v3.14) We was able to play and record via the Audio Cape. If we record and play the file via the Audio Cape, it works fine. But when we move the recorded file to other machine or play it via the USB Sound Card, the speed of the recorded file seems 1.5 time slower than it really is. On the board, we recorded the audio with arecord -t raw -f S16_LE -r 44100 /tmp/1.raw Then, we playback the file with command aplay -t raw -f S16_LE -r 44100 /tmp/1.raw 1/ On x86 machine, the voice become very slow. If we change the sampling rate to 63000, it is played close to the real voice we recorded. 2/ Trying with a USB Sound Card plugged directly to the board. aplay -t raw -f S16_LE -r 44100 -D plughw:1,0 /tmp/1.raw We saw the same issue as seen on x86 machine It seems that there is something wrong with the sampling rate clock. May anyone please give some suggestions I¹ve seen the same problem when recording on the BBB and then playing the same file on my Ubuntu Desktop. Not sure why this happens. I¹m using 3.15.10-bone8. Regards, John Thanks -- 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 beagleboard...@googlegroups.com javascript: . For more options, visit
[beagleboard] Re: cannot ssh beaglebone in eclipse
Are you using Remote System Explorer? If yes then what are the options you selected during setting new connection. Regards, Hemant Kapoor On Wednesday, 3 December 2014 11:07:38 UTC, aryaksa...@gmail.com wrote: Good evening, i was trying to develop applications in eclipse and built the application successfully. then i tried to access the BBB remotely and i got an error as i attached. i connected board to PC through usb and i think hardware is ok since i can access it through puTTy. Is there any configuration problem in eclipse cause this error? help me.. -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[beagleboard] Canbus modules freezing up BeagleBone Black Rev C
I've got a BeagleBone Black Rev C, with a canbus cape. It works great but occasionally the BeagleBone will freeze up during boot up and I've found that it's when the can modules are being loaded. I have been able to capture some information within /var/log/messages, but it's pretty much greek to me! Does anybody have any insight? [541.268448] Modules linked in: can_raw can g_serial libcomposite c_can_platform c_can can_dev [541.277469] [c0013230] (unwind_backtrace+0x0/0xe0) from [c05f9ca0] (__schedule_bug+0x48/0x5c) [541.286737] [c05f9ca0] (__schedule_bug+0x48/0x5c) from [c05ffecc] (__schedule+0x64/0x6d8) [541.295686] [c05ffecc] (__schedule+0x64/0x6d8) from [c00651f4] (__cond_resched+0x24/0x34) [541.304592] [c00651f4] (__cond_resched+0x24/0x34) from [c06005cc] (_cond_resched+0x34/0x44) [541.313674] [c06005cc] (_cond_resched+0x34/0x44) from [c039fca4] (__pm_runtime_resume+0x2c/0x80) [541.323215] [c039fca4] (__pm_runtime_resume+0x2c/0x80) from [bf007190] (c_can_get_berr_counter+0x24/0x60 [c_can]) [541.334293] [bf007190] (c_can_get_berr_counter+0x24/0x60 [c_can]) from [bf0073f0] (c_can_handle_state_change+0x30/0x164 [c_can]) [541.346721] [bf0073f0] (c_can_handle_state_change+0x30/0x164 [c_can]) from [bf007958] (c_can_poll+0xd8/0x7fc [c_can]) [541.358155] [bf007958] (c_can_poll+0xd8/0x7fc [c_can]) from [c051fc30] (net_rx_action+0x60/0x1d4) [541.367783] [c051fc30] (net_rx_action+0x60/0x1d4) from [c0042698] (__do_softirq+0x110/0x238) [541.376952] [c0042698] (__do_softirq+0x110/0x238) from [c0042a70] (irq_exit+0x44/0x84) [541.385582] [c0042a70] (irq_exit+0x44/0x84) from [c000de5c] (handle_IRQ+0x68/0x8c) [541.393847] [c000de5c] (handle_IRQ+0x68/0x8c) from [c0008754] (omap3_intc_handle_irq+0x60/0x74) [541.403287] [c0008754] (omap3_intc_handle_irq+0x60/0x74) from [c0601680] (__irq_svc+0x40/0x50) [541.412627] Exception stack(0xdf779f18 to 0xdf779f60) [541.417899] 9f00: df736040 0458 [541.426426] 9f20: 0010 df3560c8 0002 de9d1060 [541.434956] 9f40: 0050a000 df779f60 c012934c c00f40ec 6013 [541.443497] [c0601680] (__irq_svc+0x40/0x50) from [c00f40ec] (vfs_write+0x130/0x178) [541.451943] [c00f40ec] (vfs_write+0x130/0x178) from [c00f4344] (sys_write+0x3c/0x60) [541.460385] [c00f4344] (sys_write+0x3c/0x60) from [c000d580] (ret_fast_syscall+0x0/0x30) -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] Power failur .
Sounds like you may have broken it. How are you powering the board? What was the last thing you were ding with the board? Gerald On Wed, Dec 3, 2014 at 4:33 AM, sarath ak sarathak...@gmail.com wrote: Hi , I am working with BeagleBone Black. From today morning my BBB wont power on. There is no led blink even power led also. anybody can help me to resolve the problem. -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- Gerald ger...@beagleboard.org http://beagleboard.org/ http://circuitco.com/support/ -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[beagleboard] How to change I2C clock
Hi guys: I want to change the clock rate of I2C on the beagle bone black, i'm not using device tree. I can't find any API for my requirement. Do anyone can provide some idea to me, thanks -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[beagleboard] Re: pip : problem confirming the ssl certificate
I followed the instruction from http://eric.lubow.org/2011/security/fixing-centos-root-certificate-authority-issues/ and solved the problem. On Sunday, May 12, 2013 11:14:05 PM UTC+8, JacquesBBB wrote: Dear all, I have now installed pip using easy_install root@beaglebone:~# pip --version pip 1.3.1 from /usr/lib/python2.7/site-packages/pip-1.3.1-py2.7.egg (python 2.7) I am trying to use pip to install a new package that is not in the angstrom distrib. but get this error : Downloading/unpacking configobj Could not fetch URL https://pypi.python.org/simple/configobj/: There was a problem confirming the ssl certificate: urlopen error [Errno 1] _ssl.c:504: error:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed My install is the latest (3.8.12) with root@beaglebone:~# python -c import ssl; print ssl.OPENSSL_VERSION OpenSSL 1.0.0j 10 May 2012 What can I do ? Thanks Jacques -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] Disable CONFIG_SERIAL_OMAP
I have the seem problems, Not being able to disable the CONFIG_SERIAL_OMAP in the make menuconfig Do you have a solutions? Le lundi 10 novembre 2014 06:56:34 UTC+1, Terje Froysa a écrit : Not being able to disable the CONFIG_SERIAL_OMAP in the make menuconfig, I edited the .config file and re-compiled the kernel. Despite this, the CONFIG_SERIAL_OMAP is not disabled and has reappeared with: CONFIG_SERIAL_OMAP=y CONFIG_SERIAL_OMAP_CONSOLE=y What can I do to disable the SERIAL_OMAP? Please advice. Regards Terje -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[beagleboard] Re: Windows 7 (64bit) USB issue, BeagleBoneBlack shows up under Other devices
I know this is an old post... If anyone else has this problem just go to the windows device manager and uninstall the beagleboneblack Next just unplug the beaglebone usb and plug it back in, and the drivers installed earlier will now be configured properly. On Friday, September 27, 2013 8:41:02 PM UTC-5, Jeff Curless wrote: Tried another computer, and ... it works just fine. Looks like the BONE_D64.exe installer is not cleanup up *if* the beagleboneblack is connected *before* the driver is installed. Now off to try and purge the USB entries that no longer allow me access Thanks Microsoft. -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[beagleboard] How to speed up Beaglebone Black
Hello Everyone,
I am trying to build a sensor using Beaglebone Black (BBB) and Python and I
would like to get as many data points as possible from the sensor. Using
the code below, I get around 120 000 points per second.
import Adafruit_BBIO_GPIO as GPIO
import time
GPIO.setup(P8_11, GPIO.IN)
def get_data(n):
start_time = time.time()
my_list = [GPIO.input(P8_11) for i in range(n)]
end_time = time.time() - start_time
print Time: {}.format(end-time)
return my_list
n = 12
get_data(n)
I am wondering if it is possible to speed up BBB, ideally to get the rate
of 1 MHz. What are the options to do that?
Thanks,
Vitlai
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Re: [beagleboard] How to speed up Beaglebone Black
On Wed, Dec 3, 2014 at 1:49 PM, Vitali Coltuclu russ...@gmail.com wrote:
Hello Everyone,
I am trying to build a sensor using Beaglebone Black (BBB) and Python and I
would like to get as many data points as possible from the sensor. Using the
code below, I get around 120 000 points per second.
import Adafruit_BBIO_GPIO as GPIO
import time
GPIO.setup(P8_11, GPIO.IN)
def get_data(n):
start_time = time.time()
my_list = [GPIO.input(P8_11) for i in range(n)]
end_time = time.time() - start_time
print Time: {}.format(end-time)
return my_list
n = 12
get_data(n)
I am wondering if it is possible to speed up BBB, ideally to get the rate of
1 MHz. What are the options to do that?
If your just reading a gpio pin, use the pru...
Regards,
--
Robert Nelson
http://www.rcn-ee.com/
--
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Re: [beagleboard] How to speed up Beaglebone Black
Hello Robert,
Thank you very much for the fast reply. I am new to electronics so could
you please tell me what pru is? Thanks
On Wed, Dec 3, 2014 at 2:53 PM, Robert Nelson robertcnel...@gmail.com
wrote:
On Wed, Dec 3, 2014 at 1:49 PM, Vitali Coltuclu russ...@gmail.com wrote:
Hello Everyone,
I am trying to build a sensor using Beaglebone Black (BBB) and Python
and I
would like to get as many data points as possible from the sensor. Using
the
code below, I get around 120 000 points per second.
import Adafruit_BBIO_GPIO as GPIO
import time
GPIO.setup(P8_11, GPIO.IN)
def get_data(n):
start_time = time.time()
my_list = [GPIO.input(P8_11) for i in range(n)]
end_time = time.time() - start_time
print Time: {}.format(end-time)
return my_list
n = 12
get_data(n)
I am wondering if it is possible to speed up BBB, ideally to get the
rate of
1 MHz. What are the options to do that?
If your just reading a gpio pin, use the pru...
Regards,
--
Robert Nelson
http://www.rcn-ee.com/
--
For more options, visit http://beagleboard.org/discuss
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[beagleboard] Re: cannot ssh beaglebone in eclipse
I use Eclipse/RSE to access the BeagleBone Black successfully. But, in my case, I use Ethernet, rather than the USB cable and associated IP address. If you use Ethernet connections, everything works as expected. --- Graham == On Wednesday, December 3, 2014 5:07:38 AM UTC-6, aryaksa...@gmail.com wrote: Good evening, i was trying to develop applications in eclipse and built the application successfully. then i tried to access the BBB remotely and i got an error as i attached. i connected board to PC through usb and i think hardware is ok since i can access it through puTTy. Is there any configuration problem in eclipse cause this error? help me.. -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[beagleboard] BeagleBone Black based module boards
Hello there, I was wondering either are is any board on the market that has the same hardware as BeagleBone Black (mcu, mmc, ethernet etc) but is designed as a module, with more I/Os and no connectors? Like those popular All winer A20 module boards. I would aprichiate any help. -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] BeagleBone Black based module boards
All the I/O is used up on the BBB. Nothing more to add. But some of it can be feed up by removing stuff and re-purposing the I/O for something else, like no Ethernet and no eMMC.. Something that may work, although it has less stuff than the the BBB is the http://www.embest-tech.com/product/cpu-modules/mini8600b-cpu-module.html Gerald On Wed, Dec 3, 2014 at 3:43 PM, bremenpl breme...@gmail.com wrote: Hello there, I was wondering either are is any board on the market that has the same hardware as BeagleBone Black (mcu, mmc, ethernet etc) but is designed as a module, with more I/Os and no connectors? Like those popular All winer A20 module boards. I would aprichiate any help. -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- Gerald ger...@beagleboard.org http://beagleboard.org/ http://circuitco.com/support/ -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] BeagleBone Black based module boards
Thank you. The board is quite expensive though. Arent you planning designing any new board based on BeagleBone Black but made as a module :P? Raspberry Pi did that. W dniu 2014-12-03 o 23:00, Gerald Coley pisze: All the I/O is used up on the BBB. Nothing more to add. But some of it can be feed up by removing stuff and re-purposing the I/O for something else, like no Ethernet and no eMMC.. Something that may work, although it has less stuff than the the BBB is the http://www.embest-tech.com/product/cpu-modules/mini8600b-cpu-module.html Gerald On Wed, Dec 3, 2014 at 3:43 PM, bremenpl breme...@gmail.com mailto:breme...@gmail.com wrote: Hello there, I was wondering either are is any board on the market that has the same hardware as BeagleBone Black (mcu, mmc, ethernet etc) but is designed as a module, with more I/Os and no connectors? Like those popular All winer A20 module boards. I would aprichiate any help. -- 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 beagleboard+unsubscr...@googlegroups.com mailto:beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- Gerald ger...@beagleboard.org mailto:ger...@beagleboard.org http://beagleboard.org/ http://circuitco.com/support/ -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to a topic in the Google Groups BeagleBoard group. To unsubscribe from this topic, visit https://groups.google.com/d/topic/beagleboard/uVpJGNbfifE/unsubscribe. To unsubscribe from this group and all its topics, send an email to beagleboard+unsubscr...@googlegroups.com mailto:beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- Bremenpl -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
RE: [beagleboard] recommended linux distribution for BBB ?
Hey Ivo Here is the two versions I use: bone-debian-7.5-2014-05-14-2gb.img.xz BBB-eMMC-flasher-debian-7.5-2014-05-14-2gb.img.xz Good luck ! Bill No one could make a greater mistake than he who did nothing because he could do only a little. All that is necessary for the triumph of evil is that good men do nothing Edmond Burke (1729 - 1797) http://www.packtpub.com/building-a-home-security-system-with-beaglebone/book From: beagleboard@googlegroups.com [mailto:beagleboard@googlegroups.com] On Behalf Of ivo welch Sent: Wednesday, December 03, 2014 12:49 AM To: beagleboard@googlegroups.com Subject: [beagleboard] recommended linux distribution for BBB ? dear bbb experts. for the beaglebone black: I was playing around with the ubuntu 14.04 and 13.10 images, but this may not be the right route. (on ubuntu, I can't get the fb to work right, X is not installed, and it does not come up as 192.168.7.2. so, maybe I was going too exotic.) are the linux distributions on http://beagleboard.org/latest-images the two preferred distributions, as of late 2014? if so, the two distroes seem to be either debian or angstrom. the debian distro is about 7 months old, the angstrom one is about 1.5 years old (although the flasher is 3 months younger than the distro). their ages seem curiously dated. but if it works, it works! what do jason and other BBB key developers use? is angstrom or debian now the right supported mass choice? regards, /iaw -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. _ No virus found in this message. Checked by AVG - www.avg.com Version: 2015.0.5577 / Virus Database: 4235/8669 - Release Date: 12/02/14 -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] BeagleBone Black based module boards
From: bremenpl breme...@gmail.com Reply-To: beagleboard@googlegroups.com beagleboard@googlegroups.com Date: Wednesday, December 3, 2014 at 1:43 PM To: beagleboard@googlegroups.com beagleboard@googlegroups.com Subject: [beagleboard] BeagleBone Black based module boards Hello there, I was wondering either are is any board on the market that has the same hardware as BeagleBone Black (mcu, mmc, ethernet etc) but is designed as a module, with more I/Os and no connectors? Like those popular All winer A20 module boards. I would aprichiate any help. http://www.mentorel.com/product/usomiq-am335x/ -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] How to speed up Beaglebone Black
Vitali,
just google for this: beaglebone black pru gpio
you will find a ton of info
On Wed, Dec 3, 2014 at 12:56 PM, Vitali Coltuclu russ...@gmail.com wrote:
Hello Robert,
Thank you very much for the fast reply. I am new to electronics so could
you please tell me what pru is? Thanks
On Wed, Dec 3, 2014 at 2:53 PM, Robert Nelson robertcnel...@gmail.com
wrote:
On Wed, Dec 3, 2014 at 1:49 PM, Vitali Coltuclu russ...@gmail.com
wrote:
Hello Everyone,
I am trying to build a sensor using Beaglebone Black (BBB) and Python
and I
would like to get as many data points as possible from the sensor.
Using the
code below, I get around 120 000 points per second.
import Adafruit_BBIO_GPIO as GPIO
import time
GPIO.setup(P8_11, GPIO.IN)
def get_data(n):
start_time = time.time()
my_list = [GPIO.input(P8_11) for i in range(n)]
end_time = time.time() - start_time
print Time: {}.format(end-time)
return my_list
n = 12
get_data(n)
I am wondering if it is possible to speed up BBB, ideally to get the
rate of
1 MHz. What are the options to do that?
If your just reading a gpio pin, use the pru...
Regards,
--
Robert Nelson
http://www.rcn-ee.com/
--
For more options, visit http://beagleboard.org/discuss
---
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Extra Ham Operator: K7AZJ
Registered Linux User: 275424
Raspberry Pi and Arduino developer
*The most exciting phrase to hear in science - the one that heralds new
discoveries - is not Eureka! but That's funny*- Isaac. Asimov
*I*
*f you give someone a program, you will frustrate them for a day; if you
teach them how to program, you will frustrate them for a lifetime. *-
Anonymous
*If writing good code requires very little comments, then writing really
excellent code requires no comments at all !*- Anonymous
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Re: [beagleboard] How to speed up Beaglebone Black
Thank you!
Vitali
On Wed, Dec 3, 2014 at 6:23 PM, Jerry Davis jdaw...@gmail.com wrote:
Vitali,
just google for this: beaglebone black pru gpio
you will find a ton of info
On Wed, Dec 3, 2014 at 12:56 PM, Vitali Coltuclu russ...@gmail.com
wrote:
Hello Robert,
Thank you very much for the fast reply. I am new to electronics so could
you please tell me what pru is? Thanks
On Wed, Dec 3, 2014 at 2:53 PM, Robert Nelson robertcnel...@gmail.com
wrote:
On Wed, Dec 3, 2014 at 1:49 PM, Vitali Coltuclu russ...@gmail.com
wrote:
Hello Everyone,
I am trying to build a sensor using Beaglebone Black (BBB) and Python
and I
would like to get as many data points as possible from the sensor.
Using the
code below, I get around 120 000 points per second.
import Adafruit_BBIO_GPIO as GPIO
import time
GPIO.setup(P8_11, GPIO.IN)
def get_data(n):
start_time = time.time()
my_list = [GPIO.input(P8_11) for i in range(n)]
end_time = time.time() - start_time
print Time: {}.format(end-time)
return my_list
n = 12
get_data(n)
I am wondering if it is possible to speed up BBB, ideally to get the
rate of
1 MHz. What are the options to do that?
If your just reading a gpio pin, use the pru...
Regards,
--
Robert Nelson
http://www.rcn-ee.com/
--
For more options, visit http://beagleboard.org/discuss
---
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Raspberry Pi and Arduino developer
*The most exciting phrase to hear in science - the one that heralds new
discoveries - is not Eureka! but That's funny*- Isaac. Asimov
*I*
*f you give someone a program, you will frustrate them for a day; if you
teach them how to program, you will frustrate them for a lifetime. *-
Anonymous
*If writing good code requires very little comments, then writing really
excellent code requires no comments at all !*- Anonymous
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Re: [beagleboard] Serial-USB device node?
just make it clear ， do you connect your DB9 cable with USB port on BBB ? From host site , You can NOT use getty , You should use minicom 2014-12-03 11:42 GMT+08:00 motib...@gmail.com: Thanks for the tip. I'm getting a /dev/ttyUSB0 device node when I connect a USB-serial cable, but it remains a dialout port and I can't spawn an agetty from /etc/inittab. On Monday, December 1, 2014 5:58:25 PM UTC-8, liyaoshi wrote: https://www.kernel.org/doc/Documentation/usb/gadget_serial.txt /dev/ttyGS0 mean when your otg port connect to another host , like PC in Windows , You will get a serial port via USB if your usb-serial adapter connected , you will get /dev/ttyUSB0 in common case. -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] Audio capture issue with BeagleBone Black and Audio Cape Rev B
Hi John, Thanks a lot for your detail instruction. We will try with the external biased microphone. Regards, Dustin On Wed, Dec 3, 2014 at 11:37 PM, John Syn john3...@gmail.com wrote: From: Dien Nguyen nguyentienhoangd...@gmail.com Reply-To: beagleboard@googlegroups.com beagleboard@googlegroups.com Date: Tuesday, December 2, 2014 at 6:35 PM To: beagleboard@googlegroups.com beagleboard@googlegroups.com Subject: Re: [beagleboard] Audio capture issue with BeagleBone Black and Audio Cape Rev B Hi John, Have you tried to record with external microphone? You have to bias the microphone, but the audio cape didn't implement the microphone bias circuitry so you will have to bias the microphone externally for it to work. If you search for the TLV320AIC3106EVM schematic, you can see how to bias the microphone. The recording works fine if I connect the Audio Cape directly to the speaker source (a tablet) with a male-to-male 3.5mm cable. In case of using external microphone, the Audacity Frequency Analysis shows there is no frequency that is higher than 3KHz. I tried the same test with USB Sound Card and it works fine. I haven't checked the audio bandwidth, but if I use a sampling rate of 96KHz, the audio quality sounds fine. Do you have some special setting for alsamixer? The only settings I change is Press F4 for Capture, make Line Line2 Bypass = 100 and PGA = 50 Here is the command I use: arecord -c1 -f S32_LE -r 96000 -t wav -vv test.wav or aplay -C -c1 -f S32_LE -r 96000 -t wav -vv test.wav I use the second command because my debugger gets confused when loading alsa-util debug symbols. After all, arecord is just a soft link to aplay. Regards, John Thanks, Dustin On Tuesday, December 2, 2014 4:10:12 AM UTC+7, john3909 wrote: On 12/1/14, 10:27 AM, Nicolae Rosia nicola...@gmail.com wrote: Hello, The clock is wrong. For some reason the clock clock rate is not changed to 12MHz as set in dts file but to 24MHz (ti,codec-clock-rate = 1200;). If you change the clock to 24MHz in your dts, it will work as expected. I¹m not sure that is how this is supposed to work. Surely the DTS defines the clock rate rather than reflecting the clock rate? My guess is that the ALSA subsystem is reading the DTS codec-clock-rate, but the MCASP_AHCLKX isn¹t been set correctly by the MCASP code and simply defaulting to 24MHz. Regards, John Regards, Nicolae Rosia. On Mon, Dec 1, 2014 at 4:42 PM, Dien Nguyen nguyentie...@gmail.com wrote: Hi Jesse, Tried out with 48KHz, same issue occurred. Have you recorded and played successfully with any kernel version? Thanks, Dustin On Mon, Dec 1, 2014 at 2:05 PM, Jesse Cobra jesse...@gmail.com wrote: Curious what happens if you try 48k sampling? On Nov 30, 2014 9:37 PM, Dien Nguyen nguyentie...@gmail.com wrote: Hi John, Did you solve the issue yet, may you please share how to fix it? We also tried with 3.18 and the issue is still there. Thanks, Dustin On Mon, Dec 1, 2014 at 12:29 PM, John Syn john...@gmail.com wrote: From: Dien Nguyen nguyentie...@gmail.com Reply-To: beagl...@googlegroups.com beagl...@googlegroups.com Date: Sunday, November 30, 2014 at 7:14 PM To: beagl...@googlegroups.com beagl...@googlegroups.com Subject: [beagleboard] Audio capture issue with BeagleBone Black and Audio Cape Rev B Hi All, We tried the Audio Cape Rev B with BeagleBone Black. The kernel version is 3.14.17 (https://github.com/RobertCNelson/bb-kernel.git branch am33x-v3.14) We was able to play and record via the Audio Cape. If we record and play the file via the Audio Cape, it works fine. But when we move the recorded file to other machine or play it via the USB Sound Card, the speed of the recorded file seems 1.5 time slower than it really is. On the board, we recorded the audio with arecord -t raw -f S16_LE -r 44100 /tmp/1.raw Then, we playback the file with command aplay -t raw -f S16_LE -r 44100 /tmp/1.raw 1/ On x86 machine, the voice become very slow. If we change the sampling rate to 63000, it is played close to the real voice we recorded. 2/ Trying with a USB Sound Card plugged directly to the board. aplay -t raw -f S16_LE -r 44100 -D plughw:1,0 /tmp/1.raw We saw the same issue as seen on x86 machine It seems that there is something wrong with the sampling rate clock. May anyone please give some suggestions I¹ve seen the same problem when recording on the BBB and then playing the same file on my Ubuntu Desktop. Not sure why this happens. I¹m using 3.15.10-bone8. Regards, John Thanks -- 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 beagleboard...@googlegroups.com. For more options,
Re: [beagleboard] SPI : More CS lines
Have a look at the example here http://www.nagavenkat.adurthi.com/ titled SPI communication: BeagleBone Black( as Master) to 4 Arduinos( as Slaves ) http://www.nagavenkat.adurthi.com/?p=479 Hope this will help, Jan On Wednesday, December 3, 2014 7:35:38 PM UTC+11, mota...@gmail.com wrote: Thank you for your answer Mickae1. But I know how to use SPI with device tree overlay (I use it that way for my first lcd). I was wondering if it could be possible to declare a simple GPIO pin (via DTO for example) as a CS one. It would allow me to work with fbtft driver without having to alter it. Never mind, I am writing a new driver (called by dto) to emulate more CS pins. I will see if it can work at the required speed. Le mardi 2 décembre 2014 16:01:03 UTC+1, Mickae1 a écrit : your answer : http://hipstercircuits.com/enable-spi-with-device-tree-on-beaglebone-black-copy-paste/ Enjoy, Le Tue Dec 02 2014 at 15:58:53, mota...@gmail.com a écrit : Hi, I have to connect 2 lcd on a BBB via SPI interfaces (I use fbtft driver). I can only use SPI0 because SPI1 pins are used by I2C for cape eeprom. The problem is that SPI0 has only one CS pin. Is it possible to tell the SPI driver to use a GPIO pin as another CS line ? Am I forced to write a full driver to emulate CS with a GPIO pin ? Thanks in advance for your help. -- 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 beagleboard...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[beagleboard] BBB = RPi + Arduino (combined) ???
I've programmed business systems for years, and now I want to get into controlling (and reporting on) related mechanical systems. Preferably, I would like to send out (and collect) the IO directly from my business program, but if things are easier or better when split up, then that's fine. I'd like to read 30 temperatures (or whatever), and turn on/off a few lights and motors as well, based on a combination of manufacturing rules, and my input from the IO capabilities. It sounds like an Arduino might be all that I need. I want to automate the works, but allow a human to override the system, and perhaps to even change the settings, so maybe a RPi should be added too. The BBB looks like it might be able to do everything that the Arduino can do though, and it also has the computer capabilities that I might need. So back to the subject line ... Can a BBB do everything that an Arduino can do? If not, what's missing? It looks like either the RPi or the BBB could direct the Arduino (if an Arduino is still required), but because I don't need extreme sound quality, or great graphic capability, it looks like either the RPi or the BBB could do the directing part for me ... and maybe, the BBB could do the whole thing. So what would I be giving up if I went only with the BBB? Any thoughts? rjc -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[beagleboard] eMMC flashing suggestions
for other newbies, here is a summary of my flashing/updating experiences. debian is the recommend distribution now. (not ubuntu, not angstrom, not others, even though they probably work, too.) the posted debian 7.5 standard releases are too finicky. I always got something different and weird. half the time it would just access both, half the time it would stop with all four LEDs black. sometimes it got stuck at its hdmi conversation. once or twice, I got a red-letter screen telling me that it was flashing, but it never got far. in contrast, when I tried the new console flasher release, debian 7.7 (the one that has an md5sum of 1a70...), I had instant success on both rev B and rev C boards. unlike the 7.5 releases, which had two partitions, this one has only one. so, let me recommend 7.7 to anyone like me. here is a summary of the upgrading process. the information is already spread in many different places, but here is a summary (again) for the google cache: * on your linux laptop computer: download the img.xz file, check the md5sum, use unxz on the image file, and dd bs=1M if=*.img of=/dev/mmcblk0 (where /dev/mmcblk0 is the flash location on my notebook). the dd should report that you copied about 1.8GB. on a $10 sdhc premium 32gb card (300x), this takes about 90 seconds. then sync (just to make sure). then remove and reinsert the disk to make sure that a linux partition shows up (it is called rootfs and is an ext4). umount it cleanly. * unpower your BBB. insert the sdhc. hold the button near the card slot, and power up the BBB. * the USB power supply on a dual-head USB cable is enough. * the display is active during the flash and can be connected to see the progress. it works, even if you only have USB power to the BBB. * with a fast sdhc card, flashing the console image to the eMMC can take as little as 5-15 minutes. * during the flashing, the LEDs blink in a succinct pattern back and forth. * four solid LEDs means you succeeded. four black LEDs mean you failed. on the HDMI console, it will state when it has halted. * if you reboot, you should see a nice penguin at the top left of the display. the boot should take about a minute. the default username (debian) and password (temppwd) are displayed on the hdmi login screen. unlike the ubuntu images, the hdmi display output on this debian is rock-solid. the USB magic (which makes the BBB claim to be a mass storage device over USB and which runs a network over the same device, so that you can even point your browser at 192.168.7.2) is not in the console images. however, you do have a full computer with display output and keyboard support now. if the tcp/ip ethernet cable network is connected during reboot, it will come up.this means you can then run apt-get upgrade and apt-get update. when I figure out how to install and uninstall the usb magic (earlier posts), I will try to add it to this post. [thank you, robert, for having done the hard work.] -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] Power failur .
i did connect rs232 to serial converter to this board . . . connect ground with p9.1 , rx pin to p9.24 and tx pin to p9.26 . . . I did configure UART-1 in my beaglebone . but it work perfectly. after i connected rs232 the board could not power up. . . *-- AK SARATH* On Thu, Dec 4, 2014 at 12:49 AM, Gerald Coley ger...@beagleboard.org wrote: Sounds like you may have broken it. How are you powering the board? What was the last thing you were ding with the board? Gerald On Wed, Dec 3, 2014 at 4:33 AM, sarath ak sarathak...@gmail.com wrote: Hi , I am working with BeagleBone Black. From today morning my BBB wont power on. There is no led blink even power led also. anybody can help me to resolve the problem. -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- Gerald ger...@beagleboard.org http://beagleboard.org/ http://circuitco.com/support/ -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to a topic in the Google Groups BeagleBoard group. To unsubscribe from this topic, visit https://groups.google.com/d/topic/beagleboard/j15e1pNE_rY/unsubscribe. To unsubscribe from this group and all its topics, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] eMMC flashing suggestions
On Wed, Dec 3, 2014 at 9:58 PM, ivo welch ivo...@gmail.com wrote: for other newbies, here is a summary of my flashing/updating experiences. debian is the recommend distribution now. (not ubuntu, not angstrom, not others, even though they probably work, too.) the posted debian 7.5 standard releases are too finicky. I always got something different and weird. half the time it would just access both, half the time it would stop with all four LEDs black. sometimes it got stuck at its hdmi conversation. once or twice, I got a red-letter screen telling me that it was flashing, but it never got far. in contrast, when I tried the new console flasher release, debian 7.7 (the one that has an md5sum of 1a70...), I had instant success on both rev B and rev C boards. unlike the 7.5 releases, which had two partitions, this one has only one. so, let me recommend 7.7 to anyone like me. here is a summary of the upgrading process. the information is already spread in many different places, but here is a summary (again) for the google cache: * on your linux laptop computer: download the img.xz file, check the md5sum, use unxz on the image file, and dd bs=1M if=*.img of=/dev/mmcblk0 (where /dev/mmcblk0 is the flash location on my notebook). the dd should report that you copied about 1.8GB. on a $10 sdhc premium 32gb card (300x), this takes about 90 seconds. then sync (just to make sure). then remove and reinsert the disk to make sure that a linux partition shows up (it is called rootfs and is an ext4). umount it cleanly. * unpower your BBB. insert the sdhc. hold the button near the card slot, and power up the BBB. * the USB power supply on a dual-head USB cable is enough. * the display is active during the flash and can be connected to see the progress. it works, even if you only have USB power to the BBB. * with a fast sdhc card, flashing the console image to the eMMC can take as little as 5-15 minutes. * during the flashing, the LEDs blink in a succinct pattern back and forth. * four solid LEDs means you succeeded. four black LEDs mean you failed. on the HDMI console, it will state when it has halted. * if you reboot, you should see a nice penguin at the top left of the display. the boot should take about a minute. the default username (debian) and password (temppwd) are displayed on the hdmi login screen. unlike the ubuntu images, the hdmi display output on this debian is rock-solid. the USB magic (which makes the BBB claim to be a mass storage device over USB and which runs a network over the same device, so that you can even point your browser at 192.168.7.2) is not in the console images. however, you do have a full computer with display output and keyboard support now. if the tcp/ip ethernet cable network is connected during reboot, it will come up.this means you can then run apt-get upgrade and apt-get update. when I figure out how to install and uninstall the usb magic (earlier posts), I will try to add it to this post. You can enable, the usb magic via: sudo apt-get update ; sudo apt-get install udhcpc ; sudo reboot Regards, -- Robert Nelson http://www.rcn-ee.com/ -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] eMMC flashing suggestions
On Wed, Dec 3, 2014 at 9:58 PM, ivo welch ivo...@gmail.com wrote: for other newbies, here is a summary of my flashing/updating experiences. debian is the recommend distribution now. (not ubuntu, not angstrom, not others, even though they probably work, too.) the posted debian 7.5 standard releases are too finicky. I always got something different and weird. half the time it would just access both, half the time it would stop with all four LEDs black. sometimes it got stuck at its hdmi conversation. once or twice, I got a red-letter screen telling me that it was flashing, but it never got far. in contrast, when I tried the new console flasher release, debian 7.7 (the one that has an md5sum of 1a70...), I had instant success on both rev B and rev C boards. unlike the 7.5 releases, which had two partitions, this one has only one. so, let me recommend 7.7 to anyone like me. here is a summary of the upgrading process. the information is already spread in many different places, but here is a summary (again) for the google cache: * on your linux laptop computer: download the img.xz file, check the md5sum, use unxz on the image file, and dd bs=1M if=*.img of=/dev/mmcblk0 (where /dev/mmcblk0 is the flash location on my notebook). the dd should report that you copied about 1.8GB. on a $10 sdhc premium 32gb card (300x), this takes about 90 seconds. then sync (just to make sure). then remove and reinsert the disk to make sure that a linux partition shows up (it is called rootfs and is an ext4). umount it cleanly. * unpower your BBB. insert the sdhc. hold the button near the card slot, and power up the BBB. * the USB power supply on a dual-head USB cable is enough. Not always...rsync hits both media devices hard as it transfers data between the microSD eMMC... Lots of power spikes, you really need a good 5 Volt Dc (2amp) wall plug to reliable flash.. Regards, -- Robert Nelson http://www.rcn-ee.com/ -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[beagleboard] PRU data ram access from uio_pruss interrupt handler
I'd like to modify the pruss_handler routine in uio_pruss.c to write some information into the PRU data memory when an interrupt occurs. What is the simplest way the correct pointers? Maybe they are already in the code somewhere, but I can't figure it out. Thanks for any suggestions. Chris -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] Power failur .
what kind of converter did you connect? do you have a part number of the converter? the I/O is 3.3v anything above that and you fry the cpu On 12/3/2014 9:00 PM, sarath ak wrote: i did connect rs232 to serial converter to this board . . . connect ground with p9.1 , rx pin to p9.24 and tx pin to p9.26 . . . I did configure UART-1 in my beaglebone . but it work perfectly. after i connected rs232 the board could not power up. . . ** ** ** *-- AK SARATH* On Thu, Dec 4, 2014 at 12:49 AM, Gerald Coley ger...@beagleboard.org mailto:ger...@beagleboard.org wrote: Sounds like you may have broken it. How are you powering the board? What was the last thing you were ding with the board? Gerald On Wed, Dec 3, 2014 at 4:33 AM, sarath ak sarathak...@gmail.com mailto:sarathak...@gmail.com wrote: Hi , I am working with BeagleBone Black. From today morning my BBB wont power on. There is no led blink even power led also. anybody can help me to resolve the problem. -- 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 beagleboard+unsubscr...@googlegroups.com mailto:beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- Gerald ger...@beagleboard.org mailto:ger...@beagleboard.org http://beagleboard.org/ http://circuitco.com/support/ -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to a topic in the Google Groups BeagleBoard group. To unsubscribe from this topic, visit https://groups.google.com/d/topic/beagleboard/j15e1pNE_rY/unsubscribe. To unsubscribe from this group and all its topics, send an email to beagleboard+unsubscr...@googlegroups.com mailto:beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- 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 beagleboard+unsubscr...@googlegroups.com mailto:beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[beagleboard] XBee capes
As an FYI. I have printed circuit boards and full kits for the XBee cape described in my book (Hacking and Penetration Testing with Low Power Devices) available at http://philpolstra.com/Hacking-Kits/ if anyone is playing with XBee and ZigBee. On-board programming of the radios via 3.3V FTDI cable is support. There are also updates to the MeshDeck available at http://facstaff.bloomu.edu/ppolstra. The latest version has better support for Series 2 (ZigBee) and adds things such as the the ability to query a radio for its short address by entering the lower 4 bytes of the MAC address (top 4 bytes are always the same). -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
RE: [beagleboard] XBee capes
Thanks Philip Would have come in handy a couple of months ago ;-) No one could make a greater mistake than he who did nothing because he could do only a little. All that is necessary for the triumph of evil is that good men do nothing Edmond Burke (1729 - 1797) http://www.packtpub.com/building-a-home-security-system-with-beaglebone/book From: beagleboard@googlegroups.com [mailto:beagleboard@googlegroups.com] On Behalf Of Philip Polstra Sent: Wednesday, December 03, 2014 11:33 PM To: beagleboard@googlegroups.com Subject: [beagleboard] XBee capes As an FYI. I have printed circuit boards and full kits for the XBee cape described in my book (Hacking and Penetration Testing with Low Power Devices) available at http://philpolstra.com/Hacking-Kits/ if anyone is playing with XBee and ZigBee. On-board programming of the radios via 3.3V FTDI cable is support. There are also updates to the MeshDeck available at http://facstaff.bloomu.edu/ppolstra. The latest version has better support for Series 2 (ZigBee) and adds things such as the the ability to query a radio for its short address by entering the lower 4 bytes of the MAC address (top 4 bytes are always the same). -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. No virus found in this message. Checked by AVG - www.avg.com Version: 2015.0.5577 / Virus Database: 4235/8674 - Release Date: 12/03/14 _ No virus found in this message. Checked by AVG - www.avg.com Version: 2015.0.5577 / Virus Database: 4235/8669 - Release Date: 12/02/14 -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] XBee capes
On Dec 3, 2014, at 11:32 PM, Philip Polstra ppols...@gmail.com wrote: As an FYI. I have printed circuit boards and full kits for the XBee cape described in my book (Hacking and Penetration Testing with Low Power Devices) available at http://philpolstra.com/Hacking-Kits/ if anyone is playing with XBee and ZigBee. Have you also registered on http://beaglebonecapes.com and http://beagleboard.org/project? On-board programming of the radios via 3.3V FTDI cable is support. There are also updates to the MeshDeck available at http://facstaff.bloomu.edu/ppolstra. The latest version has better support for Series 2 (ZigBee) and adds things such as the the ability to query a radio for its short address by entering the lower 4 bytes of the MAC address (top 4 bytes are always the same). -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] Power failur .
Oh . I connected r232 12v converter thats my fault. thank u for your help. *-- AK SARATH* On Thu, Dec 4, 2014 at 9:58 AM, evilwulfie evilwul...@gmail.com wrote: what kind of converter did you connect? do you have a part number of the converter? the I/O is 3.3v anything above that and you fry the cpu On 12/3/2014 9:00 PM, sarath ak wrote: i did connect rs232 to serial converter to this board . . . connect ground with p9.1 , rx pin to p9.24 and tx pin to p9.26 . . . I did configure UART-1 in my beaglebone . but it work perfectly. after i connected rs232 the board could not power up. . . *-- AK SARATH* On Thu, Dec 4, 2014 at 12:49 AM, Gerald Coley ger...@beagleboard.org wrote: Sounds like you may have broken it. How are you powering the board? What was the last thing you were ding with the board? Gerald On Wed, Dec 3, 2014 at 4:33 AM, sarath ak sarathak...@gmail.com wrote: Hi , I am working with BeagleBone Black. From today morning my BBB wont power on. There is no led blink even power led also. anybody can help me to resolve the problem. -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- Gerald ger...@beagleboard.org http://beagleboard.org/ http://circuitco.com/support/ -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to a topic in the Google Groups BeagleBoard group. To unsubscribe from this topic, visit https://groups.google.com/d/topic/beagleboard/j15e1pNE_rY/unsubscribe. To unsubscribe from this group and all its topics, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to a topic in the Google Groups BeagleBoard group. To unsubscribe from this topic, visit https://groups.google.com/d/topic/beagleboard/j15e1pNE_rY/unsubscribe. To unsubscribe from this group and all its topics, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] SPI : More CS lines
Thank you very much, exactly what I was looking for ;-) Le jeudi 4 décembre 2014 03:58:11 UTC+1, janszyma...@gmail.com a écrit : Have a look at the example here http://www.nagavenkat.adurthi.com/ titled SPI communication: BeagleBone Black( as Master) to 4 Arduinos( as Slaves ) http://www.nagavenkat.adurthi.com/?p=479 Hope this will help, Jan On Wednesday, December 3, 2014 7:35:38 PM UTC+11, mota...@gmail.com wrote: Thank you for your answer Mickae1. But I know how to use SPI with device tree overlay (I use it that way for my first lcd). I was wondering if it could be possible to declare a simple GPIO pin (via DTO for example) as a CS one. It would allow me to work with fbtft driver without having to alter it. Never mind, I am writing a new driver (called by dto) to emulate more CS pins. I will see if it can work at the required speed. Le mardi 2 décembre 2014 16:01:03 UTC+1, Mickae1 a écrit : your answer : http://hipstercircuits.com/enable-spi-with-device-tree-on-beaglebone-black-copy-paste/ Enjoy, Le Tue Dec 02 2014 at 15:58:53, mota...@gmail.com a écrit : Hi, I have to connect 2 lcd on a BBB via SPI interfaces (I use fbtft driver). I can only use SPI0 because SPI1 pins are used by I2C for cape eeprom. The problem is that SPI0 has only one CS pin. Is it possible to tell the SPI driver to use a GPIO pin as another CS line ? Am I forced to write a full driver to emulate CS with a GPIO pin ? Thanks in advance for your help. -- 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 beagleboard...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] Newbie question about I/O on the beaglebone black...
If you don't want to get into PRU programming ordinary sequential IO and a latched buffer might work for you. On Thu, Sep 25, 2014 at 11:36 PM, John Tonkin john.ton...@gmail.com wrote: hi there your project is a little mysterious, so it is hard to be specific but here are some thoughts based on my own recent research into using beaglebones to drive LEDstrips and a custom LCD array. from https://github.com/osresearch/LEDscape the beaglebone SOC has two PRUs (programmable realtime unit) which are designed for this sort of purpose. the TI AM335x ARM Cortex-A8 in the BeagleBone Black has two programmable microcontrollers built into the CPU that can handle realtime tasks and also access the ARM's memory. This allows things that might have been delegated to external devices to be handled without any additional hardware, and without the overhead of clocking data out the USB port. (I am actually using a fork of this library https://github.com/Yona-Appletree/LEDscape for driving LED strips, and am planning to modify this code for my other project) PRUs run at 200MHz and have very efficient access to some (more than the 16 bits that you require) of the GPIO pins (these need to be pin-muxed correctly - that is another can of worms / kettle of fish). you read / write to pins by reading / writing to specific PRU registers. so you can read/write 8 (or more) bits simultaneously. it's much more efficient than the more traditional Linux sysfs approach. there is a FAQ about using the PRUs stickied at the top of this group and lots more info on The internet's. Trammell Hudson, who developed the original LEDscape code, seems to have done quite a bit of interfacing beaglebones to old computing hardware. http://trmm.net/Category:Retrocomputing eg http://trmm.net/Mac-SE_video another example http://blinkenbone.com/projects/blinkenbone I've found a logic analyser (eg https://www.saleae.com) to be very useful when doing this sort of stuff. john -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
RE: [beagleboard] Disable CONFIG_SERIAL_OMAP
Hello Cédric, To disable CONFIG_SERIAL_OMAP you have to remove its dependency first. (The -*- indicates a dependency to other settings) This is done by removing the Typical OMAP configuration first. Here is my way of e.g. disabling URAT0 based on the graphical make menuconfig interface: · Disable UART0 by: o In: System Type--OMAP2/3/4 Specific Features § Remove Typical OMAP configuration o In: Device Drivers--Character devices--Serial drivers § Remove the OMAP serial port support § Remove the Console on OMAP serial port · Compile and install the new kernel. If you prefer to edit the .config file use the menuconfig help to find the keywords of the config file. Good luck! Best regards Terje From: beagleboard@googlegroups.com [mailto:beagleboard@googlegroups.com] On Behalf Of Cédric Sent: 3. desember 2014 18:35 To: beagleboard@googlegroups.com Subject: Re: [beagleboard] Disable CONFIG_SERIAL_OMAP I have the seem problems, Not being able to disable the CONFIG_SERIAL_OMAP in the make menuconfig Do you have a solutions? Le lundi 10 novembre 2014 06:56:34 UTC+1, Terje Froysa a écrit : Not being able to disable the CONFIG_SERIAL_OMAP in the make menuconfig, I edited the .config file and re-compiled the kernel. Despite this, the CONFIG_SERIAL_OMAP is not disabled and has reappeared with: CONFIG_SERIAL_OMAP=y CONFIG_SERIAL_OMAP_CONSOLE=y What can I do to disable the SERIAL_OMAP? Please advice. Regards Terje -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to a topic in the Google Groups BeagleBoard group. To unsubscribe from this topic, visit https://groups.google.com/d/topic/beagleboard/ekImsxgHv9A/unsubscribe. To unsubscribe from this group and all its topics, send an email to beagleboard+unsubscr...@googlegroups.commailto:beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] eMMC flashing suggestions
thank you, robert. [video] I installed fbset. apt-get install fbset. on a 1920x1080 monitor, it selects 1280x800. 1280x1024 is a limit of the 125MHZ clock the AM3359 . this is why xres 1920 yres 1080 is a no go. as robert has pointed out (repeatedly), this can be changed by hand at boot time in uEnv.txt . (on my monitor, one video problem is that it cuts off a little at the bottom.) https://groups.google.com/forum/#!searchin/beagleboard/Robert%7Csort:date/beagleboard/Nb5TQxykUo4/9MIJYFQB43YJ Q: can the arm kernels use VESA text modes, such as 60x132 ? I don't need to display graphics in a frame buffer. I would be perfectly happy with a text mode. (my guess is no.) [usb client] apt-get install udhcpc yields busybox and udhcpc . I also installed usbutils . but there must be some other package to get usb to work. it's not just that the networking over usb does not work, it is also that usb doesn't present anything on its usb client port to the usb host (i.e., my notebook computer). what package am I missing? (would it make sense to include this by default in 7.8? it's probably widely needed.) regards, /iaw Ivo Welch (ivo.we...@gmail.com) http://www.ivo-welch.info/ J. Fred Weston Distinguished Professor of Finance Anderson School at UCLA, C519 Director, UCLA Anderson Fink Center for Finance and Investments Free Finance Textbook, http://book.ivo-welch.info/ Exec Editor, Critical Finance Review, http://www.critical-finance-review.org/ Editor and Publisher, FAMe, http://www.fame-jagazine.com/ On Thu, Dec 4, 2014 at 12:03 PM, Robert Nelson robertcnel...@gmail.com wrote: On Wed, Dec 3, 2014 at 9:58 PM, ivo welch ivo...@gmail.com wrote: for other newbies, here is a summary of my flashing/updating experiences. debian is the recommend distribution now. (not ubuntu, not angstrom, not others, even though they probably work, too.) the posted debian 7.5 standard releases are too finicky. I always got something different and weird. half the time it would just access both, half the time it would stop with all four LEDs black. sometimes it got stuck at its hdmi conversation. once or twice, I got a red-letter screen telling me that it was flashing, but it never got far. in contrast, when I tried the new console flasher release, debian 7.7 (the one that has an md5sum of 1a70...), I had instant success on both rev B and rev C boards. unlike the 7.5 releases, which had two partitions, this one has only one. so, let me recommend 7.7 to anyone like me. here is a summary of the upgrading process. the information is already spread in many different places, but here is a summary (again) for the google cache: * on your linux laptop computer: download the img.xz file, check the md5sum, use unxz on the image file, and dd bs=1M if=*.img of=/dev/mmcblk0 (where /dev/mmcblk0 is the flash location on my notebook). the dd should report that you copied about 1.8GB. on a $10 sdhc premium 32gb card (300x), this takes about 90 seconds. then sync (just to make sure). then remove and reinsert the disk to make sure that a linux partition shows up (it is called rootfs and is an ext4). umount it cleanly. * unpower your BBB. insert the sdhc. hold the button near the card slot, and power up the BBB. * the USB power supply on a dual-head USB cable is enough. * the display is active during the flash and can be connected to see the progress. it works, even if you only have USB power to the BBB. * with a fast sdhc card, flashing the console image to the eMMC can take as little as 5-15 minutes. * during the flashing, the LEDs blink in a succinct pattern back and forth. * four solid LEDs means you succeeded. four black LEDs mean you failed. on the HDMI console, it will state when it has halted. * if you reboot, you should see a nice penguin at the top left of the display. the boot should take about a minute. the default username (debian) and password (temppwd) are displayed on the hdmi login screen. unlike the ubuntu images, the hdmi display output on this debian is rock-solid. the USB magic (which makes the BBB claim to be a mass storage device over USB and which runs a network over the same device, so that you can even point your browser at 192.168.7.2) is not in the console images. however, you do have a full computer with display output and keyboard support now. if the tcp/ip ethernet cable network is connected during reboot, it will come up.this means you can then run apt-get upgrade and apt-get update. when I figure out how to install and uninstall the usb magic (earlier posts), I will try to add it to this post. You can enable, the usb magic via: sudo apt-get update ; sudo apt-get install udhcpc ; sudo reboot Regards, -- Robert Nelson http://www.rcn-ee.com/ -- For more options, visit http://beagleboard.org/discuss --- You received this
