Re: [beagleboard] Yet another newbie how to get started
Thanks, John --- just the sort of thing I've been looking for. As far as kernel development goes, I think I'll stick to popcorn for quite some time. ;-) Cheers, Tim On Friday, September 5, 2014 12:38:22 AM UTC-4, john3909 wrote: From: Tim Cole tim...@rogers.com javascript: Reply-To: beagl...@googlegroups.com javascript: beagl...@googlegroups.com javascript: Date: Thursday, September 4, 2014 at 2:41 PM To: beagl...@googlegroups.com javascript: beagl...@googlegroups.com javascript: Subject: Re: [beagleboard] Yet another newbie how to get started I'm probably going to kick myself for getting into this, but here goes nothing. Getting into *any *new community can be difficult. You're the new kid and you don't know who's who. You wonder what's a sensible question, what's a naive question, and what's a bloody annoying question. I think most of us Linux newbies understand this. I'm trying to avoid asking the bloody annoying questions, but I imagine I'm going do it -- with luck, not often. Part of the problem with figuring out how to climb the learning curve is that there's so *much *information. Saying its like drinking from a fire hose is cliched, but it feels like that sometimes. I realize that's a problem coming into *any *new area -- learning what's important and what's noise. I've decided -- tentatively -- that the Linux arena might be a bit worse than most. There's a tremendous amount of activity going on, and with that, a bit of anarchy, too. Perhaps that's typical of the entire open-source world, which also feels a bit odd to me. (Hey, no problem, dude! There are parts all over this big, old garage, and anyone can build a car!) Having said that, I don't care to live in the near dictatorship of commercial OS communities. (No, you can't do that. It takes arcane training and access to Secret Things. Now go away, buy the next version, and leave everything to the experts.) It doesn't seem reasonable for anyone to expect all you more experienced folks to do a vast quantity of work for no compensation. (Feeling good about helping doesn't buy groceries.) On the other hand, being told to RTFM is pretty frustrating when you don't know what's a good manual or an outdated manual or just the equivalent of a scrawl on a notepad. And yes, I realize that knowing the difference comes with experience, too. Speaking only for myself, I don't expect you to hold my hand and do everything for me. If I'm asking for too much, it's because I don't know I've done that. So, if this isn't too much to ask for (and I'm not trying to be snarky here), if anyone can suggest a newcomer's basic reading list and put that on a sticky post, it sure would help. Start by reading a few good books on the topic. Here are a few that I have found helpful: Linux System Programming: Talking Directly to the Kernel and C Library by Robert Love The Linux Programming Interface: A Linux and UNIX System Programming Handbook by Michael Kerrisk Linux Kernel Development (3rd Edition) by Robert Love Once you have read these books, you will be in pretty good shape. If you want to do kernel driver development, there are no good solutions as they all tend to be somewhat outdated but they do give you the basics: Essential Linux Device Drivers by Sreekrishnan Venkateswaran Linux Device Drivers (3rd Edition) by Jonathan Corbet, Alessandro Rubini and Greg Kroah-Hartman An updated version of the last book is in the work, but it was original scheduled for late 2014, but it has now scheduled for sometime in 2015. Regards, 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.
Re: [beagleboard] How do I find out what image my brand new Beaglebone Black is running?
You're sure the latest image is from may ? http://elinux.org/Beagleboard:BeagleBoneBlack_Debian#Debian_Image_Testing_Snapshots On Thu, Sep 4, 2014 at 10:48 PM, jgold j...@goldthwaites.com wrote: I just got a Beaglebone Black from Adafruit. It came with debian pre-installed. In going though the getting started guide, one of the first things it recommends to do is update the image. That's probably a good idea but the lastest image is from May so I probably already have it. I'd like to check before going to all the work of flashing a new image but I can't seem to determine the version I'm currently running. It seems like something everyone would want to know before they do an update. Anyone know how to find it? 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. -- 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: question about I/O expansion
Why do you think you'll need any cape? BBB has more then 15 free GPIOs and 7 analog inputs. You can simply build your prototype board to adjust the voltages (GPIO @ 3.3V, ADC @ 1.8 V) and feed the signals to the header pins. -- 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 do I find out what image my brand new Beaglebone Black is running?
“ uname –a “ ;-) 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 jgold Sent: Friday, September 05, 2014 1:49 AM To: beagleboard@googlegroups.com Subject: [beagleboard] How do I find out what image my brand new Beaglebone Black is running? I just got a Beaglebone Black from Adafruit. It came with debian pre-installed. In going though the getting started guide, one of the first things it recommends to do is update the image. That's probably a good idea but the lastest image is from May so I probably already have it. I'd like to check before going to all the work of flashing a new image but I can't seem to determine the version I'm currently running. It seems like something everyone would want to know before they do an update. Anyone know how to find it? 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. No virus found in this message. Checked by AVG - www.avg.com Version: 2014.0.4765 / Virus Database: 4015/8155 - Release Date: 09/04/14 -- 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.
[beagleboard] Re: trying to learn enough to get started
William Hermans yyrk...@gmail.com wrote: [-- text/plain, encoding 7bit, charset: UTF-8, 51 lines --] You need to find and read sources about embedded Linux. Then, since your project could be done using any number of languages, you need to figure that out too. Past that, you're going to have to figure out what hardware you're going to use. Which will indicate if you're using SPI. I2C, UART, onboard ADC's or PWM's etc. In your shoes, I'd start off with and continue using these instructions: https://eewiki.net/display/linuxonarm/BeagleBone+Black. You can use either Debian or Ubuntu with these build instructions. I've been using these instructions since last year ( around 14 or slightly more months ), and they're very consistent. You could also start off with a premade Debian console image if you like. You can definitely compile natively on the board, but if you plan on cross compiling, you're going to need to understand the gcc toolchain thoroughly. For setup and use. Why compile anything? For the proposed project (Greenhouse control) speed is not any sort of priority so use an interpreted language, the obvious choice on BBB is Python. ... and I am also a long in the tooth software engineer with maybe 30 years of experience writing C, but I'd still recommend going with Python on this sort of project. -- 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: How to SSH to BeagleBone's IP Address through USB cable on FreeBSD
rayche...@gmail.com wrote: [-- text/plain, encoding 7bit, charset: UTF-8, 17 lines --] I bought BBB today. It is a very cute board.After I install the drivers this board provided, I can SSH to BeagleBone's IP Address through USB cable on Windows 7. I have an FreeBSD 10 laptop, I try to SSH to BeagleBone's IP Address through USB cable on FreeBSD but I can't. It shows ssh: connect to host 192.168.7.2 port 22: Operation timed out. Should I install any driver on FreeBSD? Or What can I do to make it works like on win 7? Do you have a home LAN? I.e. are your PCs plugged into a router or some such? If so it's far easier IMHO to just use the ethernet connection on the BBB and plug that into one of the LAN connections on the router. You can still use the USB to power the BBB, or you can separate it completely from the PC and power it from a USB charger. -- 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] Beaglebone Black Rebooting Several Times Every Day
Hi Robert, I reflashed the original distro and it ran for about a half hour and rebooted so I have determined it is a hardware issue, (probably a grounding problem according to the vendor so perhaps there is a QC issue at element14) so I have returned the element14 BBB to the vendor for a refund and ordered a CircuitCo BBB from Adafruit. Will arrive Monday so will have it up and running on Tuesday. I plan to upgrade the kernel to 3.14.17-bone8 which is close to what you recommended for stability and long term support. I can give the 2014-09-13 image a try before kernel upgrade if you need me to test but it will be on a new BBB and not the 'problem child'. Thanks for all you hard work, makes maintaining a BBB pretty painless. On Thursday, September 4, 2014 2:28:58 PM UTC-4, RobertCNelson wrote: Greg, please give this image a shot. http://elinux.org/Beagleboard:BeagleBoneBlack_Debian#2014-09-03 It includes all the 3.8 kernel fixes since the May release came out.. 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] Beaglebone Black Rebooting Several Times Every Day
Robert, I just looked at the kernel in this image (3.8.13-bone64) and that was the first image I flashed after receiving the BBB. I had USB hot plug issues with that kernel version so I upgraded to 3.16.0. It would not recognize an external USB Hub plugged in after startup, only when plugged in at power up and would not recognize any USB devices hot plugged into the Hub. Not a problem with 3.14, 3.15, 3.16 when I was testing. On Thursday, September 4, 2014 2:28:58 PM UTC-4, RobertCNelson wrote: On Thu, Sep 4, 2014 at 1:26 PM, Greg Kelley suekk...@gmail.com javascript: wrote: Greg, please give this image a shot. http://elinux.org/Beagleboard:BeagleBoneBlack_Debian#2014-09-03 It includes all the 3.8 kernel fixes since the May release came out.. 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] debian testing: 2014-09-03 (goodbye vfat release)
On 04/09/14 21:24, Robert Nelson wrote: Howdy! I just pushed out another round of images for testing. There's really only one big change with this image, the sorta change that will re-write every wiki document. NO VFAT PARTITION REQUIRED!!! Let me repeat that... THE VFAT boot PARTITION IS NOT REQUIRED! ;) So far i've only got it to reliabley work on omap4+ bootroms (which include the am335x).. so beagle/beagle-xm, not yet... MBR/GPT's MBR emu is at the first sectors of the card. So are you using relocateable MBR/GPT? Or how are you handling that issue? Would it be wise to also support backup boot loader in case first one gets corrupt? -- if I recon correctly the bootrom should also support that. -- 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] SPI, I2C ports at Beaglebone Black
Hi guys, i'm have problems at how to use i2c and SPI ports in Beaglebone Black, anyone can help me? Exist some tutorials i can follow? -- 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] installing centos on bbblk?
I would like to install centos on my black. Is this possible from CD rom? -- 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] installing centos on bbblk?
On Fri, Sep 5, 2014 at 8:16 AM, Mike Opoien mike.opo...@gmail.com wrote: I would like to install centos on my black. Is this possible from CD rom? sure you can install it.. It won't boot/run/etc... There was an 'effort' to re-build centos as redsleeve no idea about it's progress.. If you want arm and redhat use fedora as they have an official release 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: Yet another newbie how to get started
Tim Cole timcole-bjeeyj9ojedqt0dzr+a...@public.gmane.org writes: Agreed -- you can't learn a damned thing without putting in your own skull time. Perhaps I'm too distrustful of internet search engines -- I like a good reference handbook. If there isn't one available, I'll just have to make do. By far, the number one reference on the BeagleBone Black is the System Reference Manual: https://github.com/CircuitCo/BeagleBone-Black/blob/master/BBB_SRM.pdf?raw=true It's impressively complete. However, that mainly covers the hardware. Since hardware doesn't change as often as software (although it's becoming more that way) any other reference is a snapshot in time, especially for Linux resources. In increasing specificity, one would need (supplied with links to books I like): - A good Linux reference http://www.nostarch.com/howlinuxworks.htm - A good Debian reference http://www.nostarch.com/debian.htm - A good embedded Linux reference http://www.amazon.com/Linux-Embedded-Systems-Experts-Voice/dp/1430272279 - A good Linux programming reference http://www.nostarch.com/tlpi The difficulty in writing books on the BeagleBone is that the community moves incredibly fast. This is the sign of a healthy and vibrant community. Josh p.s. There are, of course, great *free* resources too. One would have to use a distrustful search engine to find them :p -- 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: SPI, I2C ports at Beaglebone Black
Matheus Luiz mortin.luizz-pkbjnfxxiarbdgjk7y7...@public.gmane.org writes: Hi guys, i'm have problems at how to use i2c and SPI ports in Beaglebone Black, anyone can help me? Exist some tutorials i can follow? I like this tutorial on I2C: http://datko.net/2013/11/03/bbb_i2c/ Of course, I might be biased :p -- 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: How do I find out what image my brand new Beaglebone Black is running?
jgold: Try: *cat /etc/dogtag * I think the May image is the latest released image, that is the image that ships on the Bone. There was a new test image pushed yesterday (4-Sep-2014). --Mark On Friday, September 5, 2014 1:48:36 AM UTC-4, jgold wrote: I just got a Beaglebone Black from Adafruit. It came with debian pre-installed. In going though the getting started guide, one of the first things it recommends to do is update the image. That's probably a good idea but the lastest image is from May so I probably already have it. I'd like to check before going to all the work of flashing a new image but I can't seem to determine the version I'm currently running. It seems like something everyone would want to know before they do an update. Anyone know how to find it? 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] Welcome the Fall 2014 Beagle Class to the group
The purpose of this posting is to announce that I'm once again teaching an Embedded Linux class based on the BeagleBone Black [1]. I'm teaching as open-source as I can and have have posted many of course materials on eLinux.org [2] and github[3]. I'm always open to ideas on what topics to include in the class and suggestions for interesting course projects. For example we are starting BoneScript today and hope to be writing simple kernel module 5 weeks from now. Class, please respond to this posting. Others, please welcome my class. --Mark --Prof. Mark A. Yoder Rose-Hulman Institute of Technology [4] [1] http://elinux.org/Embedded_Linux,_Rose-Hulman [2] http://elinux.org/index.php?title=Category:ECE597 [3] https://github.com/MarkAYoder/BeagleBoard-exercises [4] http://www.rose-hulman.edu -- 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] ROS Hydro on BBB
For those of you attempting to run ROS (Robot Operating System) on Ubuntu 12.04, 12.10, 13.04 - the ARM repositories currently are missing a key component call 'tf'. his component is important if you actually want to have a robot that can move. Instruction for installing ROS in arm are at: http://wiki.ros.org/hydro/Installation/UbuntuARM -- 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: installing centos on bbblk?
awesome- thanks for the reply. thats a great help. much appreciated. On Friday, September 5, 2014 8:16:40 AM UTC-5, Mike Opoien wrote: I would like to install centos on my black. Is this possible from CD rom? -- 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: Yet another newbie how to get started
You can find free legitimate reading material easily on the web. LDD ( Linux Device Drivers is one example ). Not to mention sites like http://www.debianhelp.co.uk/ddcommand.htm and https://wiki.debian.org/NetworkConfiguration Note that both those came up off of a google search, so yeah google is probably the most important resource. On Fri, Sep 5, 2014 at 7:11 AM, Joshua Datko jbda...@gmail.com wrote: Tim Cole timcole-bjeeyj9ojedqt0dzr+a...@public.gmane.org writes: Agreed -- you can't learn a damned thing without putting in your own skull time. Perhaps I'm too distrustful of internet search engines -- I like a good reference handbook. If there isn't one available, I'll just have to make do. By far, the number one reference on the BeagleBone Black is the System Reference Manual: https://github.com/CircuitCo/BeagleBone-Black/blob/master/BBB_SRM.pdf?raw=true It's impressively complete. However, that mainly covers the hardware. Since hardware doesn't change as often as software (although it's becoming more that way) any other reference is a snapshot in time, especially for Linux resources. In increasing specificity, one would need (supplied with links to books I like): - A good Linux reference http://www.nostarch.com/howlinuxworks.htm - A good Debian reference http://www.nostarch.com/debian.htm - A good embedded Linux reference http://www.amazon.com/Linux-Embedded-Systems-Experts-Voice/dp/1430272279 - A good Linux programming reference http://www.nostarch.com/tlpi The difficulty in writing books on the BeagleBone is that the community moves incredibly fast. This is the sign of a healthy and vibrant community. Josh p.s. There are, of course, great *free* resources too. One would have to use a distrustful search engine to find them :p -- 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: trying to learn enough to get started
*Why compile anything? For the proposed project (Greenhouse control)* * speed is not any sort of priority so use an interpreted language, the* * obvious choice on BBB is Python.* Well, the obvious choice to me is Nodejs, and am betting since this person has 35 years experience in related fields, that C is a possibility as well. I've only been programming for 20 or so years . . . so what the hell do i know ? On Fri, Sep 5, 2014 at 1:51 AM, c...@isbd.net wrote: William Hermans yyrk...@gmail.com wrote: [-- text/plain, encoding 7bit, charset: UTF-8, 51 lines --] You need to find and read sources about embedded Linux. Then, since your project could be done using any number of languages, you need to figure that out too. Past that, you're going to have to figure out what hardware you're going to use. Which will indicate if you're using SPI. I2C, UART, onboard ADC's or PWM's etc. In your shoes, I'd start off with and continue using these instructions: https://eewiki.net/display/linuxonarm/BeagleBone+Black. You can use either Debian or Ubuntu with these build instructions. I've been using these instructions since last year ( around 14 or slightly more months ), and they're very consistent. You could also start off with a premade Debian console image if you like. You can definitely compile natively on the board, but if you plan on cross compiling, you're going to need to understand the gcc toolchain thoroughly. For setup and use. Why compile anything? For the proposed project (Greenhouse control) speed is not any sort of priority so use an interpreted language, the obvious choice on BBB is Python. ... and I am also a long in the tooth software engineer with maybe 30 years of experience writing C, but I'd still recommend going with Python on this sort of project. -- 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] BBB unresponsive to VDD_5V
Hi, Similar to a couple of older threads I've found on searching, one of my BBB's (a rev B) has recently stopped powering up from VDD_5V (either the barrel jack or P9 connector). Not sure what might have triggered this, nothing had changed in hardware setup for some time, power was permanently supplied from a 5V wall wart and it was being cleanly shutdown from software each day, and restarted from the on-board power button. Only things connected were ethernet, a USB RF dongle, and a hall effect sensor (powered from VDD_3V3B). Have since removed everything, and just attached a serial debug cable. Timing to failure is a bit variable, from nothing at all, to a brief flash of the power LED, to getting several seconds into boot before it dies (have also tried running from a bench supply, but just the same results). I suppose the PMIC is shutting things down for a reason (it draws no current in this state), but it is still working fine from the USB_DC line. So I'm a bit stumped. Any ideas, or should I look for an RMA? Thanks in advance, Jon -- 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: SPI, I2C ports at Beaglebone Black
Ok, thank you my friend, I actually had looked at this site, but need not necessarily be I2C, SPI can be. I just need to communicate with the I/O. Thanks for answering. -- 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] BBB unresponsive to VDD_5V
Go the RMA route so it can be looked at. Gerald On Fri, Sep 5, 2014 at 12:08 PM, Jon E jesco...@googlemail.com wrote: Hi, Similar to a couple of older threads I've found on searching, one of my BBB's (a rev B) has recently stopped powering up from VDD_5V (either the barrel jack or P9 connector). Not sure what might have triggered this, nothing had changed in hardware setup for some time, power was permanently supplied from a 5V wall wart and it was being cleanly shutdown from software each day, and restarted from the on-board power button. Only things connected were ethernet, a USB RF dongle, and a hall effect sensor (powered from VDD_3V3B). Have since removed everything, and just attached a serial debug cable. Timing to failure is a bit variable, from nothing at all, to a brief flash of the power LED, to getting several seconds into boot before it dies (have also tried running from a bench supply, but just the same results). I suppose the PMIC is shutting things down for a reason (it draws no current in this state), but it is still working fine from the USB_DC line. So I'm a bit stumped. Any ideas, or should I look for an RMA? Thanks in advance, Jon -- 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] USB Camera on BBB (Debian GNU/Linux 7)
Hello, Could someone give me a hand? I'm having trouble getting a USB Camera to work on my BeagleBone Black. I'm using a 5V@1A adapter (I thought it could be a power issue), but it didn't solve it. I can provide the following information of my system: $ uname -a Linux beaglebone 3.8.13-bone47 #1 SMP Fri Apr 11 01:36:09 UTC 2014 armv7l GNU/Linux $ lsusb *Bus 001 Device 002: ID 1871:0101 Aveo Technology Corp. * Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub $ lsmod Module Size Used by *uvcvideo 53354 0 videobuf2_vmalloc 2418 1 uvcvideo* g_multi47670 2 libcomposite 14299 1 g_multi $dmesg | less ... [ 1196.227457] usb usb1: usb wakeup-resume [ 1196.227556] usb usb1: usb auto-resume [ 1196.227607] hub 1-0:1.0: hub_resume [ 1196.227706] hub 1-0:1.0: port 1: status 0101 change 0001 [ 1196.329800] hub 1-0:1.0: state 7 ports 1 chg 0002 evt [ 1196.329910] hub 1-0:1.0: port 1, status 0101, change , 12 Mb/s [ 1196.435171] usb 1-1: new high-speed USB device number 3 using musb-hdrc [ 1196.562835] usb 1-1: skipped 1 descriptor after configuration [ 1196.562886] usb 1-1: skipped 5 descriptors after interface [ 1196.562929] usb 1-1: skipped 1 descriptor after endpoint [ 1196.562967] usb 1-1: skipped 9 descriptors after interface [ 1196.563301] usb 1-1: default language 0x0409 [ 1196.564922] usb 1-1: udev 3, busnum 1, minor = 2 [ 1196.564969] usb 1-1: New USB device found, idVendor=1871, idProduct=0101 [ 1196.565009] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 1196.565044] usb 1-1: Product: USB2.0 Camera [ 1196.565079] usb 1-1: Manufacturer: AVEO Technology Corp. [ 1196.566432] usb 1-1: usb_probe_device [ 1196.566483] usb 1-1: configuration #1 chosen from 1 choice [ 1196.566782] usb 1-1: adding 1-1:1.0 (config #1, interface 0) *[ 1196.568276] uvcvideo 1-1:1.0: usb_probe_interface[ 1196.568333] uvcvideo 1-1:1.0: usb_probe_interface - got id[ 1196.568476] uvcvideo: Found UVC 1.00 device USB2.0 Camera (1871:0101)[ 1196.574639] input: USB2.0 Camera as /devices/ocp.3/4740.usb/musb-hdrc.1.auto/usb1/1-1/1-1:1.0/input/input2* [ 1196.575902] usb 1-1: adding 1-1:1.1 (config #1, interface 1) [ 1196.578270] hub 1-0:1.0: state 7 ports 1 chg evt 0002 [ 1196.578369] hub 1-0:1.0: port 1 enable change, status 0503 [ 1199.015323] usb 1-1: usb auto-suspend, wakeup 0 [ 1199.029051] hub 1-0:1.0: hub_suspend [ 1199.029145] usb usb1: bus auto-suspend, wakeup 1 $ ls -al /dev/video0 crw-rw---T+ 1 root video 81, 0 Sep 4 23:45 /dev/video0 But when I try to capture some image it fails. I tried with streamer, mjpg-streamer and ffmpeg but always get timeout. My impression is that not all the modules are being loaded. For instance when I plug the camera on my laptop I get the following modules on lsmod: $ lsmod ... uvcvideo 80885 0 videobuf2_vmalloc 13216 1 uvcvideo *videobuf2_memops 13362 1 videobuf2_vmallocvideobuf2_core 40664 1 uvcvideovideodev 134688 2 uvcvideo,videobuf2_core* ... The 3 last aren't being loaded on the BBB. Do you have any suggestions? What could it be? Thanks a lot for any hints! -- 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: GPIO toggle Kernel Module for Beaglebone
does this kernel module will help me for my linux kernel 3.8.13-bone47 which is installed in my beagelbone black thanking you sumik chakka -- 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] error p8_11
I all, I have problème i want out in P8_11 but I have error error: analogWrite: P8_11 does not support analogWrite() Why , What i do for use this pin ? thank a lot for reply :) -- 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: Why did my BB die ?
1. The voltage sequencing mentioned by Gerald is big and is probably the real failure mode. In this design, the AIN pins will see voltage long before the CPU/PMIC (Power Management IC) is up and running. Basically, when a voltage is applied to the analog pins (or any IO pins for that matter) before the IO rail is up, the chip tries to power itself through the pin clamping diodes and can really cause havoc on the silicon. The chip just wasn't made to be powered this way. 2. Did you check that the 1Ohm resistor didn't blow or that the voltage across it didn't exceed the limit for the ADC inputs? If it does fail open for some reason, the voltage would far exceed the max voltage on the Analog pins. Might want to add some protection there in case that resistor ever does blow, or the voltage across it exceeds the max analog voltage. 3. Also note that the 1Ohm resistor isn't just powering the BBB, it's charging the battery! Chances are the solar panel was putting too much juice into the battery and caused the 1Ohm resistor to have a much larger voltage across it. 4. You might move the 1Ohm resistor to the ground leg between the battery and the solar panel, instead of between the solar panel and the battery. On Monday, August 25, 2014 1:56:37 AM UTC-5, A Daviel wrote: I'm trying to run a Beagleboard Black from solar power, and I set it up per the attached schematic. The analog inputs are used to measure the BB system voltage, the battery voltage, and the current from the solar panel by measuring the voltage either side of a one ohm resistor in the ground lead (500mA from the panel should give 500mV, less than the 1.8V maximum) I'd run it on USB power from a PC for several days, then from a car 12V USB adapter on the 12V battery, with no problem, with a proto board cape to measure the battery voltage. Also with a 5V supply via the coax power connector. Then I connected the solar panel, nominal 4W 12V, and left it outside while the sun rose in the sky. The BB was OK for a while, then died. It appears to be completely defunct - no flashing LEDs, on whatever supply (battery, USB etc.) When I checked voltages, it did seem that there was a bad connection to the battery terminals. The no-load output voltage of the panel is in excess of the nominal 12V, so the obvious suggestion is that the input voltage overpowered the BB. But with the BB and battery disconnected, the USB adapter was still producing 5.25V output with an input voltage of some 20V, and I assume (though I have no specs) that this is normal - a car supply voltage can rise to at least 14V under charge, so a car adapter should be able to handle more than 12V. -- == This e-mail, including any attachments, is intended for the exclusive use of the person(s) to which it is addressed and may contain proprietary, confidential and/or privileged information. If the reader of this e-mail is not the intended recipient or his or her authorized agent, any review, use, printing, copying, disclosure, dissemination or distribution of this e-mail is strictly prohibited. If you think that you have received the e-mail in error, please notify the sender immediately by return e-mail, delete this communication and destroy all copies. == -- 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: glibc_2.17 not found
Simon: THANK YOU! I was cross compiling with a custom built chain on OSX and of course it was more current than wheezy and had the same problem. I did add libstdc++6 to the package list because we are crazy enough to do that stuff and I was getting errors from the dynaloader for that too. Works great now! -- Ward -- 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: BBB 24-bit LCD using device tree
Thanks for the pointer David. I'd reviewed that before, but hadn't noticed the extra steps at the bottom. Unfortunately, those still don't get 24 bit video going (per fbset). So, I'm still wondering if anyone knows if the tilcdc in 3.8.13-bone50 kernel is supporting 24 bit modes, or if I need to get a different video driver. On Tuesday, September 2, 2014 9:02:49 AM UTC-7, David Anders wrote: http://elinux.org/24bit_LCD_for_BBB -- 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: Is it possible to root Beaglebone Black Android image
I'm just seeing this post. I'm amazed that no one has replied yet. I am desperately looking for this solution. Every android tool I have for rooting does not work on BBB. This is the 1st time I could not root an android device. -- 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: glibc_2.17 not found
Simon: THANK YOU! Had the same problem using a cross compiler I built on OSX that was far in advance of the BBB wheezy image. I added libstdc++6 to the sources list because we needed that too. Works great now! -- Ward -- 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 DDR3 RAM Voltage levels
Hello, I've been working to create an industrial temperature derivative of the BBB(BeagleBoneBlack). In doing so I've noticed that the DDR3 SDRAM part numbers that are used are DDR3L or 1.35V parts. However, the design uses the TPS65217C device which automatically sets the DDR3 voltage to 1.5 volts upon power up. After going through the Uboot source, I found that software does not change the DCDC1 from it's default value of 1.5V. I believe the datasheet for the Micron part says that even though it supports DDR3L 1.35V mode, it can also run at 1.5V range and will be in DDR3 mode. Was this by design? Mostly I'm just looking for a Yep, we meant to do that and it's A-OK -- == This e-mail, including any attachments, is intended for the exclusive use of the person(s) to which it is addressed and may contain proprietary, confidential and/or privileged information. If the reader of this e-mail is not the intended recipient or his or her authorized agent, any review, use, printing, copying, disclosure, dissemination or distribution of this e-mail is strictly prohibited. If you think that you have received the e-mail in error, please notify the sender immediately by return e-mail, delete this communication and destroy all copies. == -- 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] Read USB through GPIO
Hi There! I have a feeling the answer to this question will be no. But, does anybody know if it is possible to mount a USB device through the GPIO pins? I need to connect two powered devices to the BBB and would rather not use a USB hub because of the added weight. Thanks! Sam -- 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] max microsdxc size
I have a chance to get a 128 GB microsdxc card for cheap. Does the Beaglebone Black support a card this size? 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.
Re: [beagleboard] BeagleBone Black DDR3 RAM Voltage levels
SW is supposed to set it to 1.35V. Sounds like it got dropped somewhere because initially it did.. It was designed this way because when it was designed, the PMIC defaulted to 1.5V. Since the design there is a TPS65217D that was release later that supports the 1.35V initial setting. Yep, I meant to do that and Yes it is OK, however I prefer the SW folks fix UBoot, if it isn't too much trouble. Gerald On Fri, Sep 5, 2014 at 12:36 AM, ja...@acs4design.com wrote: Hello, I've been working to create an industrial temperature derivative of the BBB(BeagleBoneBlack). In doing so I've noticed that the DDR3 SDRAM part numbers that are used are DDR3L or 1.35V parts. However, the design uses the TPS65217C device which automatically sets the DDR3 voltage to 1.5 volts upon power up. After going through the Uboot source, I found that software does not change the DCDC1 from it's default value of 1.5V. I believe the datasheet for the Micron part says that even though it supports DDR3L 1.35V mode, it can also run at 1.5V range and will be in DDR3 mode. Was this by design? Mostly I'm just looking for a Yep, we meant to do that and it's A-OK == This e-mail, including any attachments, is intended for the exclusive use of the person(s) to which it is addressed and may contain proprietary, confidential and/or privileged information. If the reader of this e-mail is not the intended recipient or his or her authorized agent, any review, use, printing, copying, disclosure, dissemination or distribution of this e-mail is strictly prohibited. If you think that you have received the e-mail in error, please notify the sender immediately by return e-mail, delete this communication and destroy all copies. == -- 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] max microsdxc size
On Thu, Sep 4, 2014 at 7:12 PM, thatwasfunny thatwasfu...@gmail.com wrote: I have a chance to get a 128 GB microsdxc card for cheap. Does the Beaglebone Black support a card this size? Thanks. Nope.. only SD/SDHC http://en.wikipedia.org/wiki/Secure_Digital#Overview The SDXC spec came out after the ip was designed.. 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] BeagleBone Black DDR3 RAM Voltage levels
On Fri, Sep 5, 2014 at 12:32 PM, Gerald Coley ger...@beagleboard.org wrote:
SW is supposed to set it to 1.35V. Sounds like it got dropped somewhere
because initially it did.. It was designed this way because when it was
designed, the PMIC defaulted to 1.5V. Since the design there is a TPS65217D
that was release later that supports the 1.35V initial setting.
It should be set here:
http://git.denx.de/?p=u-boot.git;a=blob;f=board/ti/am335x/board.c;h=0739e6021a21e71d7d0f5c840b793ce7fdf98fae;hb=HEAD#l275
269 /*
270 * Increase USB current limit to 1300mA or 1800mA and set
271 * the MPU voltage controller as needed.
272 */
273 if (dpll_mpu_opp100.m == MPUPLL_M_1000) {
274 usb_cur_lim = TPS65217_USB_INPUT_CUR_LIMIT_1800MA;
275 mpu_vdd = TPS65217_DCDC_VOLT_SEL_1325MV;
276 } else {
277 usb_cur_lim = TPS65217_USB_INPUT_CUR_LIMIT_1300MA;
278 mpu_vdd = TPS65217_DCDC_VOLT_SEL_1275MV;
279 }
But that only happens if you have the beaglebone black header in eeprom:
262 /*
263 * Override what we have detected since we know if we have
264 * a Beaglebone Black it supports 1GHz.
265 */
266 if (board_is_bone_lt(header))
So you'll have to override that check.
Regards,
--
Robert Nelson
http://www.rcn-ee.com/
--
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Re: [beagleboard] BBB unresponsive to VDD_5V
Thanks Gerald, have submitted a request.. Regards, Jon On 05/09/14 18:20, Gerald Coley wrote: Go the RMA route so it can be looked at. Gerald On Fri, Sep 5, 2014 at 12:08 PM, Jon E jesco...@googlemail.com mailto:jesco...@googlemail.com wrote: Hi, Similar to a couple of older threads I've found on searching, one of my BBB's (a rev B) has recently stopped powering up from VDD_5V (either the barrel jack or P9 connector). Not sure what might have triggered this, nothing had changed in hardware setup for some time, power was permanently supplied from a 5V wall wart and it was being cleanly shutdown from software each day, and restarted from the on-board power button. Only things connected were ethernet, a USB RF dongle, and a hall effect sensor (powered from VDD_3V3B). Have since removed everything, and just attached a serial debug cable. Timing to failure is a bit variable, from nothing at all, to a brief flash of the power LED, to getting several seconds into boot before it dies (have also tried running from a bench supply, but just the same results). I suppose the PMIC is shutting things down for a reason (it draws no current in this state), but it is still working fine from the USB_DC line. So I'm a bit stumped. Any ideas, or should I look for an RMA? Thanks in advance, Jon -- 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] Can allocated pins on BBB be used as GPIOs ?
it finally works :-))) Thanks so much guys for your tips and help, espacially william. I just added *optargs=capemgr.disable_partno=BB-BONE-EMMC-2G* in the uEnv.txt file to disable all the emmc Pins. now I have more than enough pins for my project. Am Donnerstag, 4. September 2014 22:48:05 UTC+2 schrieb William Hermans: From my own blog site: optargs=capemgr.disable_partno=BB-BONELT-HDMI,BB-BONELT-HDMIN This is both for hdmi video and audio. This was prior to later kernel version images that now use two different uEnv.txt files. You have a first stage uEnv.txt file and a second stage uEnv.txt file ( for loading secondary environment variables ). here is an example of the secondary uEnv.txt file which sits in /boot/ on the rootfs. *#Docs: http://elinux.org/Beagleboard:U-boot_partitioning_layout_2.0 http://elinux.org/Beagleboard:U-boot_partitioning_layout_2.0* *uname_r=3.8.13-bone62* *#dtb=* *cmdline=quiet init=/lib/systemd/systemd* *##Example* *#cape_disable=capemgr.disable_partno=* *#cape_enable=capemgr.enable_partno=* *##Disable HDMI/eMMC* *#cape_disable=capemgr.disable_partno=BB-BONELT-HDMI,BB-BONELT-HDMIN,BB-BONE-EMMC-2G* *##Disable HDMI* *#cape_disable=capemgr.disable_partno=BB-BONELT-HDMI,BB-BONELT-HDMIN* *##Disable eMMC* *#cape_disable=capemgr.disable_partno=BB-BONE-EMMC-2G* *##Audio Cape (needs HDMI Audio disabled)* *#cape_disable=capemgr.disable_partno=BB-BONELT-HDMI* *#cape_enable=capemgr.enable_partno=BB-BONE-AUDI-02* *##enable BBB: eMMC Flasher:* *##make sure, these tools are installed: dosfstools rsync* *#cmdline=init=/opt/scripts/tools/eMMC/init-eMMC-flasher-v2.sh* I believe that came out of RCN's August 5th LXDE standalone image. On Thu, Sep 4, 2014 at 1:39 PM, halfbrain adrian@gmail.com javascript: wrote: Thank you Brandon and William for your answers and tips. It seems that you both write about the same method... changing some lines of code in the uEnv.txt etc I will try this one out as soon as possible and will hopefully give you a positive feedback then ;-) Am Donnerstag, 4. September 2014 22:30:54 UTC+2 schrieb Brandon I: halfbrain, - If I used the EMMC pins I would need to boot from SD Card everytime? Correct. You'll use the beaglebone white/sd card images. The beaglebone will automatically boot from the SD card since it wont be able to find the EMMC. - And if I used the HMDI Pins it wouldn't be possible to connect the uHdmi Cable to the bbb and connect some screen to it? Because they are connected to the same pins? No HDMI if you disable HDMI, but you can still ssh/vnc in. The way I'm suggesting is the proper way to disable built in overlays that are loaded at boot. For some reason, only the hdmi and emmc interfaces are added as overlays that can be disabled at boot. i2c and the likes are hard coded in the dts file. Why? I don't know. Maybe there's a good reason, probably not. --Brandon On Thu, Sep 4, 2014 at 7:28 AM, halfbrain adrian@gmail.com wrote: Thanks for your Answer Brandon Just a few questions for my Information: - If I used the EMMC pins I would need to boot from SD Card everytime? - And if I used the HMDI Pins it wouldn't be possible to connect the uHdmi Cable to the bbb and connect some screen to it? Because they are connected to the same pins? The way you unallocated the pins and the way john recommend me to unallocate the pins seem to be very different. To be honest I don't understand the difference of the two ways. Which way is the easier one and can this way be used to unallocate every pin on the bbb? I just wan't to make things trickier than they are :-) But i'm very thankful for your help so far ;-) Am Mittwoch, 3. September 2014 22:00:16 UTC+2 schrieb Brandon I: halfbrain, I forgot to mention, you should tie the eMMC cmd and clock pins low on P8.20 and P8.21, as suggested by the wiki: http://elinux.org/Beagleboard:BeagleBoneBlack#Onboard_eMMC On Wednesday, September 3, 2014 12:58:09 PM UTC-7, Brandon I wrote: halfbrain, If you're using angstrom or debian, you can disable the emmc by adding this to the optargs in uEnv.txt on the usb mass storage partition: capemgr.disable_partno=BB-BONE-EMMC-2G If you're not using hdmi, you can free up those too: capemgr.disable_partno=BB-BONELT-HDMI,BB-BONELT-HDMIN, BB-BONE-EMMC-2G On Saturday, August 23, 2014 1:11:22 AM UTC-7, halfbrain wrote: Would be nice if you could explain how to disable eMMC on debian. I ran out of GPIO's in my project. Tried to use P9_19 and P9_20 (both I2C's) in the device tree overlay but since i did that the overlay doesn't work correctly anymore. Am Sonntag, 18. Mai 2014 22:19:16 UTC+2 schrieb john3909: From: Dhruv Vyas dhruv@gmail.com Reply-To: beagl...@googlegroups.com Date: Sunday, May 18, 2014 at 2:42 AM To: beagl...@googlegroups.com Subject: [beagleboard] Can allocated pins on BBB be used as GPIOs ?
[beagleboard] Re: debian testing: 2014-09-03 (goodbye vfat release)
This is good. I really like that when I plug it into my desktop usb port I now have the whole root file system mounting and available for overview from my desktop. So with only a usb connection I can ssh into 192.168.7.2 where I do most of my work but I can still mouse around the file system with a gui overview without the overhead of a desktop running on the BBB. Note: I started with this image : http://rcn-ee.net/deb/testing/2014-09-04/console/bone-debian-7.6-console-armhf-2014-09-04-2gb.img.xz which has just one ext4 partition. No fat. No cholesterol. (console images are anorexic to began with, so I had to force feed it a mass of debs to build up its strength.) I don't know what happens to your gadget functionality if you convert from an existing system Thank you Robert. -- 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 DDR3 RAM Voltage levels
Ahh. Correct so that needs to be added to the EEPROM to work or
a custom UBoot created for non conforming boards, those without EEPROM or
EEPROM with different information in the EEPROM.
Thanks Robert for checking!
Gerald
.
On Fri, Sep 5, 2014 at 12:38 PM, Robert Nelson robertcnel...@gmail.com
wrote:
On Fri, Sep 5, 2014 at 12:32 PM, Gerald Coley ger...@beagleboard.org
wrote:
SW is supposed to set it to 1.35V. Sounds like it got dropped somewhere
because initially it did.. It was designed this way because when it was
designed, the PMIC defaulted to 1.5V. Since the design there is a
TPS65217D
that was release later that supports the 1.35V initial setting.
It should be set here:
http://git.denx.de/?p=u-boot.git;a=blob;f=board/ti/am335x/board.c;h=0739e6021a21e71d7d0f5c840b793ce7fdf98fae;hb=HEAD#l275
269 /*
270 * Increase USB current limit to 1300mA or 1800mA and
set
271 * the MPU voltage controller as needed.
272 */
273 if (dpll_mpu_opp100.m == MPUPLL_M_1000) {
274 usb_cur_lim =
TPS65217_USB_INPUT_CUR_LIMIT_1800MA;
275 mpu_vdd = TPS65217_DCDC_VOLT_SEL_1325MV;
276 } else {
277 usb_cur_lim =
TPS65217_USB_INPUT_CUR_LIMIT_1300MA;
278 mpu_vdd = TPS65217_DCDC_VOLT_SEL_1275MV;
279 }
But that only happens if you have the beaglebone black header in eeprom:
262 /*
263 * Override what we have detected since we know if we
have
264 * a Beaglebone Black it supports 1GHz.
265 */
266 if (board_is_bone_lt(header))
So you'll have to override that check.
Regards,
--
Robert Nelson
http://www.rcn-ee.com/
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Re: [beagleboard] How to enable SPI devices on 3.14 kernel?
On Friday, 29 August 2014 10:37:09 UTC-7, RobertCNelson wrote: 2nd thought, the uart conflicts.. so disable: #include am335x-bone-basic-proto-cape.dtsi - /* #include am335x-bone-basic-proto-cape.dtsi */ Then add spi0: #include am335x-bone-spi0-spidev.dtsi Then spi1: #include am335x-bone-spi1-spidev.dtsi or #include am335x-bone-spi1a-spidev.dtsi then make/sudo make install/sudo reboot ..I think I should add this for completion Also do: #include am335x-boneblack-nxp-hdmi-audio.dtsi to: /*#include am335x-boneblack-nxp-hdmi-audio.dtsi*/ and if you want hdmi do: /* #include am335x-boneblack-nxp-hdmi-no-audio.dtsi*/ to: #include am335x-boneblack-nxp-hdmi-no-audio.dtsi -- 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] Welcome the Fall 2014 Beagle Class to the group
Looking forward to it! Current hot topics: * 3.14 kernel with USB DMA, 3D graphics support and more fixes/updates * Capemgr/overlay, cape and userspace pinmuxing (cape-universal) support * Simplified PRU usage * Debugifying BoneScript * Python library improvements * Demos of cool stuff coming out of http://beagleboard.org/gsoc and http://www.ti.com/ep-mcu-msp-mcugen-mspblog-20140823-mc1-en#DIY_with_TI:_Intern_Edition_.2F.2F_2014 On Fri, Sep 5, 2014 at 11:13 AM, Mark A. Yoder mark.a.yo...@gmail.com wrote: The purpose of this posting is to announce that I'm once again teaching an Embedded Linux class based on the BeagleBone Black [1]. I'm teaching as open-source as I can and have have posted many of course materials on eLinux.org [2] and github[3]. I'm always open to ideas on what topics to include in the class and suggestions for interesting course projects. For example we are starting BoneScript today and hope to be writing simple kernel module 5 weeks from now. Class, please respond to this posting. Others, please welcome my class. --Mark --Prof. Mark A. Yoder Rose-Hulman Institute of Technology [4] [1] http://elinux.org/Embedded_Linux,_Rose-Hulman [2] http://elinux.org/index.php?title=Category:ECE597 [3] https://github.com/MarkAYoder/BeagleBoard-exercises [4] http://www.rose-hulman.edu -- 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] Re: USB Camera on BBB (Debian GNU/Linux 7)
hello I am no expert but I have found qv4l2 a very good tool to help debug webcams. Often I find the default resolutions are to high for these small boards sudo apt-get install qv4l2 On Friday, 5 September 2014 00:03:41 UTC+2, Alejandro Merello wrote: Hello, Could someone give me a hand? I'm having trouble getting a USB Camera to work on my BeagleBone Black. I'm using a 5V@1A adapter (I thought it could be a power issue), but it didn't solve it. I can provide the following information of my system: $ uname -a Linux beaglebone 3.8.13-bone47 #1 SMP Fri Apr 11 01:36:09 UTC 2014 armv7l GNU/Linux $ lsusb *Bus 001 Device 002: ID 1871:0101 Aveo Technology Corp. * Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub $ lsmod Module Size Used by *uvcvideo 53354 0 videobuf2_vmalloc 2418 1 uvcvideo* g_multi47670 2 libcomposite 14299 1 g_multi $dmesg | less ... [ 1196.227457] usb usb1: usb wakeup-resume [ 1196.227556] usb usb1: usb auto-resume [ 1196.227607] hub 1-0:1.0: hub_resume [ 1196.227706] hub 1-0:1.0: port 1: status 0101 change 0001 [ 1196.329800] hub 1-0:1.0: state 7 ports 1 chg 0002 evt [ 1196.329910] hub 1-0:1.0: port 1, status 0101, change , 12 Mb/s [ 1196.435171] usb 1-1: new high-speed USB device number 3 using musb-hdrc [ 1196.562835] usb 1-1: skipped 1 descriptor after configuration [ 1196.562886] usb 1-1: skipped 5 descriptors after interface [ 1196.562929] usb 1-1: skipped 1 descriptor after endpoint [ 1196.562967] usb 1-1: skipped 9 descriptors after interface [ 1196.563301] usb 1-1: default language 0x0409 [ 1196.564922] usb 1-1: udev 3, busnum 1, minor = 2 [ 1196.564969] usb 1-1: New USB device found, idVendor=1871, idProduct=0101 [ 1196.565009] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 1196.565044] usb 1-1: Product: USB2.0 Camera [ 1196.565079] usb 1-1: Manufacturer: AVEO Technology Corp. [ 1196.566432] usb 1-1: usb_probe_device [ 1196.566483] usb 1-1: configuration #1 chosen from 1 choice [ 1196.566782] usb 1-1: adding 1-1:1.0 (config #1, interface 0) *[ 1196.568276] uvcvideo 1-1:1.0: usb_probe_interface[ 1196.568333] uvcvideo 1-1:1.0: usb_probe_interface - got id[ 1196.568476] uvcvideo: Found UVC 1.00 device USB2.0 Camera (1871:0101)[ 1196.574639] input: USB2.0 Camera as /devices/ocp.3/4740.usb/musb-hdrc.1.auto/usb1/1-1/1-1:1.0/input/input2* [ 1196.575902] usb 1-1: adding 1-1:1.1 (config #1, interface 1) [ 1196.578270] hub 1-0:1.0: state 7 ports 1 chg evt 0002 [ 1196.578369] hub 1-0:1.0: port 1 enable change, status 0503 [ 1199.015323] usb 1-1: usb auto-suspend, wakeup 0 [ 1199.029051] hub 1-0:1.0: hub_suspend [ 1199.029145] usb usb1: bus auto-suspend, wakeup 1 $ ls -al /dev/video0 crw-rw---T+ 1 root video 81, 0 Sep 4 23:45 /dev/video0 But when I try to capture some image it fails. I tried with streamer, mjpg-streamer and ffmpeg but always get timeout. My impression is that not all the modules are being loaded. For instance when I plug the camera on my laptop I get the following modules on lsmod: $ lsmod ... uvcvideo 80885 0 videobuf2_vmalloc 13216 1 uvcvideo *videobuf2_memops 13362 1 videobuf2_vmallocvideobuf2_core 40664 1 uvcvideovideodev 134688 2 uvcvideo,videobuf2_core* ... The 3 last aren't being loaded on the BBB. Do you have any suggestions? What could it be? Thanks a lot for any hints! -- 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] Read USB through GPIO
Nope L There are some serial io’s and I2C busses available ….. 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 samthomasdigi...@gmail.com Sent: Thursday, September 04, 2014 6:04 PM To: beagleboard@googlegroups.com Subject: [beagleboard] Read USB through GPIO Hi There! I have a feeling the answer to this question will be no. But, does anybody know if it is possible to mount a USB device through the GPIO pins? I need to connect two powered devices to the BBB and would rather not use a USB hub because of the added weight. Thanks! Sam -- 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: 2014.0.4765 / Virus Database: 4015/8159 - Release Date: 09/05/14 -- 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] Re: Is it possible to root Beaglebone Black Android image
Where did you get the image ??? 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 iom...@gmail.com Sent: Friday, September 05, 2014 11:15 AM To: beagleboard@googlegroups.com Subject: [beagleboard] Re: Is it possible to root Beaglebone Black Android image I'm just seeing this post. I'm amazed that no one has replied yet. I am desperately looking for this solution. Every android tool I have for rooting does not work on BBB. This is the 1st time I could not root an android device. -- 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: 2014.0.4765 / Virus Database: 4015/8159 - Release Date: 09/05/14 -- 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] Re: USB Camera on BBB (Debian GNU/Linux 7)
*$ lsmod* *...* *uvcvideo 80885 0 * *videobuf2_vmalloc 13216 1 uvcvideo* *videobuf2_memops 13362 1 videobuf2_vmalloc* *videobuf2_core 40664 1 uvcvideo* *videodev 134688 2 uvcvideo,videobuf2_core* *...* *The 3 last aren't being loaded on the BBB. Do you have any suggestions? What could it be?* *Thanks a lot for any hints!* Did you make sure those modules actually exist on the BBB ? On Fri, Sep 5, 2014 at 11:07 AM, gern gerald.e.law...@gmail.com wrote: hello I am no expert but I have found qv4l2 a very good tool to help debug webcams. Often I find the default resolutions are to high for these small boards sudo apt-get install qv4l2 On Friday, 5 September 2014 00:03:41 UTC+2, Alejandro Merello wrote: Hello, Could someone give me a hand? I'm having trouble getting a USB Camera to work on my BeagleBone Black. I'm using a 5V@1A adapter (I thought it could be a power issue), but it didn't solve it. I can provide the following information of my system: $ uname -a Linux beaglebone 3.8.13-bone47 #1 SMP Fri Apr 11 01:36:09 UTC 2014 armv7l GNU/Linux $ lsusb *Bus 001 Device 002: ID 1871:0101 Aveo Technology Corp. * Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub $ lsmod Module Size Used by *uvcvideo 53354 0 videobuf2_vmalloc 2418 1 uvcvideo* g_multi47670 2 libcomposite 14299 1 g_multi $dmesg | less ... [ 1196.227457] usb usb1: usb wakeup-resume [ 1196.227556] usb usb1: usb auto-resume [ 1196.227607] hub 1-0:1.0: hub_resume [ 1196.227706] hub 1-0:1.0: port 1: status 0101 change 0001 [ 1196.329800] hub 1-0:1.0: state 7 ports 1 chg 0002 evt [ 1196.329910] hub 1-0:1.0: port 1, status 0101, change , 12 Mb/s [ 1196.435171] usb 1-1: new high-speed USB device number 3 using musb-hdrc [ 1196.562835] usb 1-1: skipped 1 descriptor after configuration [ 1196.562886] usb 1-1: skipped 5 descriptors after interface [ 1196.562929] usb 1-1: skipped 1 descriptor after endpoint [ 1196.562967] usb 1-1: skipped 9 descriptors after interface [ 1196.563301] usb 1-1: default language 0x0409 [ 1196.564922] usb 1-1: udev 3, busnum 1, minor = 2 [ 1196.564969] usb 1-1: New USB device found, idVendor=1871, idProduct=0101 [ 1196.565009] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 1196.565044] usb 1-1: Product: USB2.0 Camera [ 1196.565079] usb 1-1: Manufacturer: AVEO Technology Corp. [ 1196.566432] usb 1-1: usb_probe_device [ 1196.566483] usb 1-1: configuration #1 chosen from 1 choice [ 1196.566782] usb 1-1: adding 1-1:1.0 (config #1, interface 0) *[ 1196.568276] uvcvideo 1-1:1.0: usb_probe_interface[ 1196.568333] uvcvideo 1-1:1.0: usb_probe_interface - got id[ 1196.568476] uvcvideo: Found UVC 1.00 device USB2.0 Camera (1871:0101)[ 1196.574639] input: USB2.0 Camera as /devices/ocp.3/4740.usb/musb-hdrc.1.auto/usb1/1-1/1-1:1.0/input/input2* [ 1196.575902] usb 1-1: adding 1-1:1.1 (config #1, interface 1) [ 1196.578270] hub 1-0:1.0: state 7 ports 1 chg evt 0002 [ 1196.578369] hub 1-0:1.0: port 1 enable change, status 0503 [ 1199.015323] usb 1-1: usb auto-suspend, wakeup 0 [ 1199.029051] hub 1-0:1.0: hub_suspend [ 1199.029145] usb usb1: bus auto-suspend, wakeup 1 $ ls -al /dev/video0 crw-rw---T+ 1 root video 81, 0 Sep 4 23:45 /dev/video0 But when I try to capture some image it fails. I tried with streamer, mjpg-streamer and ffmpeg but always get timeout. My impression is that not all the modules are being loaded. For instance when I plug the camera on my laptop I get the following modules on lsmod: $ lsmod ... uvcvideo 80885 0 videobuf2_vmalloc 13216 1 uvcvideo *videobuf2_memops 13362 1 videobuf2_vmallocvideobuf2_core 40664 1 uvcvideovideodev 134688 2 uvcvideo,videobuf2_core* ... The 3 last aren't being loaded on the BBB. Do you have any suggestions? What could it be? Thanks a lot for any hints! -- 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] USB Camera on BBB (Debian GNU/Linux 7)
On Thu, Sep 4, 2014 at 5:03 PM, amere...@gmail.com wrote: Hello, Could someone give me a hand? I'm having trouble getting a USB Camera to work on my BeagleBone Black. I'm using a 5V@1A adapter (I thought it could be a power issue), but it didn't solve it. I can provide the following information of my system: $ uname -a Linux beaglebone 3.8.13-bone47 #1 SMP Fri Apr 11 01:36:09 UTC 2014 armv7l GNU/Linux $ lsusb Bus 001 Device 002: ID 1871:0101 Aveo Technology Corp. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub $ lsmod Module Size Used by uvcvideo 53354 0 videobuf2_vmalloc 2418 1 uvcvideo g_multi47670 2 libcomposite 14299 1 g_multi $dmesg | less ... [ 1196.227457] usb usb1: usb wakeup-resume [ 1196.227556] usb usb1: usb auto-resume [ 1196.227607] hub 1-0:1.0: hub_resume [ 1196.227706] hub 1-0:1.0: port 1: status 0101 change 0001 [ 1196.329800] hub 1-0:1.0: state 7 ports 1 chg 0002 evt [ 1196.329910] hub 1-0:1.0: port 1, status 0101, change , 12 Mb/s [ 1196.435171] usb 1-1: new high-speed USB device number 3 using musb-hdrc [ 1196.562835] usb 1-1: skipped 1 descriptor after configuration [ 1196.562886] usb 1-1: skipped 5 descriptors after interface [ 1196.562929] usb 1-1: skipped 1 descriptor after endpoint [ 1196.562967] usb 1-1: skipped 9 descriptors after interface [ 1196.563301] usb 1-1: default language 0x0409 [ 1196.564922] usb 1-1: udev 3, busnum 1, minor = 2 [ 1196.564969] usb 1-1: New USB device found, idVendor=1871, idProduct=0101 [ 1196.565009] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 1196.565044] usb 1-1: Product: USB2.0 Camera [ 1196.565079] usb 1-1: Manufacturer: AVEO Technology Corp. [ 1196.566432] usb 1-1: usb_probe_device [ 1196.566483] usb 1-1: configuration #1 chosen from 1 choice [ 1196.566782] usb 1-1: adding 1-1:1.0 (config #1, interface 0) [ 1196.568276] uvcvideo 1-1:1.0: usb_probe_interface [ 1196.568333] uvcvideo 1-1:1.0: usb_probe_interface - got id [ 1196.568476] uvcvideo: Found UVC 1.00 device USB2.0 Camera (1871:0101) [ 1196.574639] input: USB2.0 Camera as /devices/ocp.3/4740.usb/musb-hdrc.1.auto/usb1/1-1/1-1:1.0/input/input2 [ 1196.575902] usb 1-1: adding 1-1:1.1 (config #1, interface 1) [ 1196.578270] hub 1-0:1.0: state 7 ports 1 chg evt 0002 [ 1196.578369] hub 1-0:1.0: port 1 enable change, status 0503 [ 1199.015323] usb 1-1: usb auto-suspend, wakeup 0 [ 1199.029051] hub 1-0:1.0: hub_suspend [ 1199.029145] usb usb1: bus auto-suspend, wakeup 1 $ ls -al /dev/video0 crw-rw---T+ 1 root video 81, 0 Sep 4 23:45 /dev/video0 But when I try to capture some image it fails. I tried with streamer, mjpg-streamer and ffmpeg but always get timeout. My impression is that not all the modules are being loaded. For instance when I plug the camera on my laptop I get the following modules on lsmod: $ lsmod ... uvcvideo 80885 0 videobuf2_vmalloc 13216 1 uvcvideo videobuf2_memops 13362 1 videobuf2_vmalloc videobuf2_core 40664 1 uvcvideo videodev 134688 2 uvcvideo,videobuf2_core ... The 3 last aren't being loaded on the BBB. Do you have any suggestions? What could it be? They are built-in: https://github.com/RobertCNelson/bb-kernel/blob/am33x-v3.8/patches/defconfig#L2574 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] USB Camera on BBB (Debian GNU/Linux 7)
Robert, thanks. However since we're talking 3.8.13* hotplug still is an issue ? amerello, have you tried loading these modules manually with modprobe ? Or have you manually edited /etc/modules to include these there ? On Fri, Sep 5, 2014 at 11:45 AM, Robert Nelson robertcnel...@gmail.com wrote: On Thu, Sep 4, 2014 at 5:03 PM, amere...@gmail.com wrote: Hello, Could someone give me a hand? I'm having trouble getting a USB Camera to work on my BeagleBone Black. I'm using a 5V@1A adapter (I thought it could be a power issue), but it didn't solve it. I can provide the following information of my system: $ uname -a Linux beaglebone 3.8.13-bone47 #1 SMP Fri Apr 11 01:36:09 UTC 2014 armv7l GNU/Linux $ lsusb Bus 001 Device 002: ID 1871:0101 Aveo Technology Corp. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub $ lsmod Module Size Used by uvcvideo 53354 0 videobuf2_vmalloc 2418 1 uvcvideo g_multi47670 2 libcomposite 14299 1 g_multi $dmesg | less ... [ 1196.227457] usb usb1: usb wakeup-resume [ 1196.227556] usb usb1: usb auto-resume [ 1196.227607] hub 1-0:1.0: hub_resume [ 1196.227706] hub 1-0:1.0: port 1: status 0101 change 0001 [ 1196.329800] hub 1-0:1.0: state 7 ports 1 chg 0002 evt [ 1196.329910] hub 1-0:1.0: port 1, status 0101, change , 12 Mb/s [ 1196.435171] usb 1-1: new high-speed USB device number 3 using musb-hdrc [ 1196.562835] usb 1-1: skipped 1 descriptor after configuration [ 1196.562886] usb 1-1: skipped 5 descriptors after interface [ 1196.562929] usb 1-1: skipped 1 descriptor after endpoint [ 1196.562967] usb 1-1: skipped 9 descriptors after interface [ 1196.563301] usb 1-1: default language 0x0409 [ 1196.564922] usb 1-1: udev 3, busnum 1, minor = 2 [ 1196.564969] usb 1-1: New USB device found, idVendor=1871, idProduct=0101 [ 1196.565009] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 1196.565044] usb 1-1: Product: USB2.0 Camera [ 1196.565079] usb 1-1: Manufacturer: AVEO Technology Corp. [ 1196.566432] usb 1-1: usb_probe_device [ 1196.566483] usb 1-1: configuration #1 chosen from 1 choice [ 1196.566782] usb 1-1: adding 1-1:1.0 (config #1, interface 0) [ 1196.568276] uvcvideo 1-1:1.0: usb_probe_interface [ 1196.568333] uvcvideo 1-1:1.0: usb_probe_interface - got id [ 1196.568476] uvcvideo: Found UVC 1.00 device USB2.0 Camera (1871:0101) [ 1196.574639] input: USB2.0 Camera as /devices/ocp.3/4740.usb/musb-hdrc.1.auto/usb1/1-1/1-1:1.0/input/input2 [ 1196.575902] usb 1-1: adding 1-1:1.1 (config #1, interface 1) [ 1196.578270] hub 1-0:1.0: state 7 ports 1 chg evt 0002 [ 1196.578369] hub 1-0:1.0: port 1 enable change, status 0503 [ 1199.015323] usb 1-1: usb auto-suspend, wakeup 0 [ 1199.029051] hub 1-0:1.0: hub_suspend [ 1199.029145] usb usb1: bus auto-suspend, wakeup 1 $ ls -al /dev/video0 crw-rw---T+ 1 root video 81, 0 Sep 4 23:45 /dev/video0 But when I try to capture some image it fails. I tried with streamer, mjpg-streamer and ffmpeg but always get timeout. My impression is that not all the modules are being loaded. For instance when I plug the camera on my laptop I get the following modules on lsmod: $ lsmod ... uvcvideo 80885 0 videobuf2_vmalloc 13216 1 uvcvideo videobuf2_memops 13362 1 videobuf2_vmalloc videobuf2_core 40664 1 uvcvideo videodev 134688 2 uvcvideo,videobuf2_core ... The 3 last aren't being loaded on the BBB. Do you have any suggestions? What could it be? They are built-in: https://github.com/RobertCNelson/bb-kernel/blob/am33x-v3.8/patches/defconfig#L2574 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. -- 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: Cross compiling using Eclipse and Ubuntu 64bit 12.04
Ok, now run this: ldd /bin/ls This should tell you which ABI is physically running on your board. It should be either *arm-linux-gnueab* or *arm-linux-gnueabhf * If the output of ldd /bin/ls is arm-linux-gnueab then you're golden. However I suspect the output will be arm-linux-gnueabhf. IN which case you're using the wrong toolchain. If the output is confusing to you, just paste the output in a message to us, and we can let you know. On Thu, Sep 4, 2014 at 7:12 PM, mrbarre7...@gmail.com wrote: Is this the compiler info you need. i'm a Linux novice so it may not be what you want. compiler -I/usr/arm-linux-gnueabi/include/c++/4.6.3 -O0 -g3 -Wall -c -fmessage-length=0 Linux kernal - Linux ubuntu 3.2.0-67-generic #101-Ubuntu SMP Tue Jul 15 17:46:11 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux I downloaded the 12.04 version of Ubuntu from Ubuntu's website. -- 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] debian testing: 2014-09-03 (goodbye vfat release)
*So, we are offering more protection, as windows user's can't randomly delete it.* That should read clueless users, since I'm a windows user myself and have never had that problem :P On Fri, Sep 5, 2014 at 12:16 PM, Robert Nelson robertcnel...@gmail.com wrote: On Fri, Sep 5, 2014 at 7:14 AM, Vesa Jääskeläinen dach...@gmail.com wrote: On 04/09/14 21:24, Robert Nelson wrote: Howdy! I just pushed out another round of images for testing. There's really only one big change with this image, the sorta change that will re-write every wiki document. NO VFAT PARTITION REQUIRED!!! Let me repeat that... THE VFAT boot PARTITION IS NOT REQUIRED! ;) So far i've only got it to reliabley work on omap4+ bootroms (which include the am335x).. so beagle/beagle-xm, not yet... MBR/GPT's MBR emu is at the first sectors of the card. So are you using relocateable MBR/GPT? Or how are you handling that issue? Traditionally it's been a msdos partition setup... Either way, the first file MLO gets stored at 128k Would it be wise to also support backup boot loader in case first one gets corrupt? -- if I recon correctly the bootrom should also support that. We never had a backup boot loader previously.. It was just stored in the fat partition as a file and was also shared over usb as a gadget usb flash drive. So, we are offering more protection, as windows user's can't randomly delete it. 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. -- 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] debian testing: 2014-09-03 (goodbye vfat release)
From: William Hermans yyrk...@gmail.com Reply-To: beagleboard@googlegroups.com beagleboard@googlegroups.com Date: Friday, September 5, 2014 at 12:19 PM To: beagleboard@googlegroups.com beagleboard@googlegroups.com Subject: Re: [beagleboard] debian testing: 2014-09-03 (goodbye vfat release) So, we are offering more protection, as windows user's can't randomly delete it. That should read clueless users, since I'm a windows user myself and have never had that problem :P All windows users are clueless ;-) On Fri, Sep 5, 2014 at 12:16 PM, Robert Nelson robertcnel...@gmail.com wrote: On Fri, Sep 5, 2014 at 7:14 AM, Vesa Jääskeläinen dach...@gmail.com wrote: On 04/09/14 21:24, Robert Nelson wrote: Howdy! I just pushed out another round of images for testing. There's really only one big change with this image, the sorta change that will re-write every wiki document. NO VFAT PARTITION REQUIRED!!! Let me repeat that... THE VFAT boot PARTITION IS NOT REQUIRED! ;) So far i've only got it to reliabley work on omap4+ bootroms (which include the am335x).. so beagle/beagle-xm, not yet... MBR/GPT's MBR emu is at the first sectors of the card. So are you using relocateable MBR/GPT? Or how are you handling that issue? Traditionally it's been a msdos partition setup... Either way, the first file MLO gets stored at 128k Would it be wise to also support backup boot loader in case first one gets corrupt? -- if I recon correctly the bootrom should also support that. We never had a backup boot loader previously.. It was just stored in the fat partition as a file and was also shared over usb as a gadget usb flash drive. So, we are offering more protection, as windows user's can't randomly delete it. 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 mailto:beagleboard%2bunsubscr...@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 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: trying to learn enough to get started
Chuck, You might like to take a look at node-RED (http://nodered.org) which is a browser based visual tool for 'wiring the Internet of Things' and I reckon a greenhouse counts as a Thing. It is written in Javascript, running in node.js, and runs fine on small embedded Linux machines like the Raspberry Pi and the BeagleBone Black. There are explicit 'how to set up' instructions for both these boards on the web site. You can start by 'wiring up' analogue digital input pins to function blocks which make calculations and decisions, back to output pins, or to other things like Internet services. For example, you could make it send an alert to your phone (or an email, or a tweet) when the temperature goes over a limit. You can write Javascript inside 'function blocks' for simple tasks, or if your task warrants it, extend the environment by writing your own 'node' - also in Javascript. It's all open source so you can look under the hood see how it works. There is an active, helpful developer community emerging around it. Whatever you decide to do, enjoy doing it! Max On Thursday, 4 September 2014 03:24:01 UTC+1, ccrisle...@gmail.com wrote: I have a significant project that I want to accomplish this fall/winter. I would like to build a digital controller for my greenhouse. I have been a software engineer for 35 years so the programming will be easy. I don't have any experience with microprocessors and need to learn so that I can do. What introductory and intermediate sources of information would people recommend? I am thinking about a BBB running Ubuntu but am open to suggestions. Thank you, Chuck Crisler -- 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: Why did my BB die ?
This was a big reason why I chose to use an I2C external ADC for measuring raw battery voltage in a project of mine. Gating that voltage from hitting the pins prior to PMIC startup was way more complicated than hooking up a 4 channel ADC on the I2C bus and using that powered by the 3.3V rail. It's easy to overlook that need to keep inputs isolated until power is fully on for the BBB. -- 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: trying to learn enough to get started
On 09/05/2014 10:04 AM, William Hermans wrote: /Why compile anything? For the proposed project (Greenhouse control)/ /speed is not any sort of priority so use an interpreted language, the/ /obvious choice on BBB is Python./ Well, the obvious choice to me is Nodejs, and am betting since this person has 35 years experience in related fields, that C is a possibility as well. I've only been programming for 20 or so years . . . so what the hell do i know ? On Fri, Sep 5, 2014 at 1:51 AM, c...@isbd.net mailto:c...@isbd.net wrote: William Hermans yyrk...@gmail.com mailto:yyrk...@gmail.com wrote: [-- text/plain, encoding 7bit, charset: UTF-8, 51 lines --] You need to find and read sources about embedded Linux. Then, since your project could be done using any number of languages, you need to figure that out too. Past that, you're going to have to figure out what hardware you're going to use. Which will indicate if you're using SPI. I2C, UART, onboard ADC's or PWM's etc. In your shoes, I'd start off with and continue using these instructions: https://eewiki.net/display/linuxonarm/BeagleBone+Black. You can use either Debian or Ubuntu with these build instructions. I've been using these instructions since last year ( around 14 or slightly more months ), and they're very consistent. You could also start off with a premade Debian console image if you like. You can definitely compile natively on the board, but if you plan on cross compiling, you're going to need to understand the gcc toolchain thoroughly. For setup and use. Why compile anything? For the proposed project (Greenhouse control) speed is not any sort of priority so use an interpreted language, the obvious choice on BBB is Python. ... and I am also a long in the tooth software engineer with maybe 30 years of experience writing C, but I'd still recommend going with Python on this sort of project. -- 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 mailto:beagleboard%2bunsubscr...@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. I actually have done a similar control for aeroponics room setups. We are releasing it public in roughly a month once the boards come back and we finish testing on the new hardware run. Very easily can be adapted to greenhouse control as I am sure you're after the same things, water, temp, humidity, vpd, ph, ppm, disolved oxygen, dew point, flood detection, co2, lumens/lux, uvb, darkness light leak detection and all the rest of the goodness for optimal environmental control. Even the cooling opener could be adjusted/adapted to fit to automate opening roof panels. Ours is all in python and php with darkhttpd as the webserver. I dispise nodejs, it reminds me of the cluster that ruby gems are. -- 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: custom cape i2c bus
So it appears you should expect to see a device between 0x20 through 0x27 from the datasheets. The device address is 0*010* when not shifted for the R/W bit. That corresponds to 0x20 as the base chip address and the A1,A2, and A3 pins can set up to 7 other address for the final three bits. I2C can be really confusing in how the addresses are specified in various datasheets. Linux reports the 7 bit address of devices it finds in hexadecimal. I see your output shows devices at 0x20, 0x22, 0x26, and 0x28. That appears to be the correct* hecxidecimal*, *7-bit,* addresses for the chips? Do you have 4 chips wired up? -- 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: trying to learn enough to get started
*Ours is all in python and php with darkhttpd as the webserver. I dispise nodejs, it reminds me of the cluster that ruby gems are. * And this is why there is no easy guide. At least from a programing aspect. No two people are going to agree on how it should be done, and what is used to get it done. Nodejs does however get a bad rap I think. The stigma of javascript comes with it. Which is its self often misunderstood. Nothing is perfect however . . . On Fri, Sep 5, 2014 at 1:06 PM, Don deJuan donjuans...@gmail.com wrote: On 09/05/2014 10:04 AM, William Hermans wrote: *Why compile anything? For the proposed project (Greenhouse control)* * speed is not any sort of priority so use an interpreted language, the* * obvious choice on BBB is Python.* Well, the obvious choice to me is Nodejs, and am betting since this person has 35 years experience in related fields, that C is a possibility as well. I've only been programming for 20 or so years . . . so what the hell do i know ? On Fri, Sep 5, 2014 at 1:51 AM, c...@isbd.net wrote: William Hermans yyrk...@gmail.com wrote: [-- text/plain, encoding 7bit, charset: UTF-8, 51 lines --] You need to find and read sources about embedded Linux. Then, since your project could be done using any number of languages, you need to figure that out too. Past that, you're going to have to figure out what hardware you're going to use. Which will indicate if you're using SPI. I2C, UART, onboard ADC's or PWM's etc. In your shoes, I'd start off with and continue using these instructions: https://eewiki.net/display/linuxonarm/BeagleBone+Black. You can use either Debian or Ubuntu with these build instructions. I've been using these instructions since last year ( around 14 or slightly more months ), and they're very consistent. You could also start off with a premade Debian console image if you like. You can definitely compile natively on the board, but if you plan on cross compiling, you're going to need to understand the gcc toolchain thoroughly. For setup and use. Why compile anything? For the proposed project (Greenhouse control) speed is not any sort of priority so use an interpreted language, the obvious choice on BBB is Python. ... and I am also a long in the tooth software engineer with maybe 30 years of experience writing C, but I'd still recommend going with Python on this sort of project. -- 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. I actually have done a similar control for aeroponics room setups. We are releasing it public in roughly a month once the boards come back and we finish testing on the new hardware run. Very easily can be adapted to greenhouse control as I am sure you're after the same things, water, temp, humidity, vpd, ph, ppm, disolved oxygen, dew point, flood detection, co2, lumens/lux, uvb, darkness light leak detection and all the rest of the goodness for optimal environmental control. Even the cooling opener could be adjusted/adapted to fit to automate opening roof panels. Ours is all in python and php with darkhttpd as the webserver. I dispise nodejs, it reminds me of the cluster that ruby gems are. -- 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: trying to learn enough to get started
From: William Hermans yyrk...@gmail.com Reply-To: beagleboard@googlegroups.com beagleboard@googlegroups.com Date: Friday, September 5, 2014 at 2:43 PM To: beagleboard@googlegroups.com beagleboard@googlegroups.com Subject: Re: [beagleboard] Re: trying to learn enough to get started Ours is all in python and php with darkhttpd as the webserver. I dispise nodejs, it reminds me of the cluster that ruby gems are. And this is why there is no easy guide. At least from a programing aspect. No two people are going to agree on how it should be done, and what is used to get it done. Nodejs does however get a bad rap I think. The stigma of javascript comes with it. Which is its self often misunderstood. Nothing is perfect however . . . I agree with you William; however, php and darkhttpd don't scale very well, because it lacks asynchronous I/O capability. Also, the current spec¹d Javascript is pretty close to the more perfect language compared to C, Java or Python. It also has the biggest user base of any language, by far and it is the only true language that works in all browsers and on the server. BTW, there are no bad parts, just bad programmers. Regards, John On Fri, Sep 5, 2014 at 1:06 PM, Don deJuan donjuans...@gmail.com wrote: On 09/05/2014 10:04 AM, William Hermans wrote: Why compile anything? For the proposed project (Greenhouse control) speed is not any sort of priority so use an interpreted language, the obvious choice on BBB is Python. Well, the obvious choice to me is Nodejs, and am betting since this person has 35 years experience in related fields, that C is a possibility as well. I've only been programming for 20 or so years . . . so what the hell do i know ? On Fri, Sep 5, 2014 at 1:51 AM, c...@isbd.net wrote: William Hermans yyrk...@gmail.com wrote: [-- text/plain, encoding 7bit, charset: UTF-8, 51 lines --] You need to find and read sources about embedded Linux. Then, since your project could be done using any number of languages, you need to figure that out too. Past that, you're going to have to figure out what hardware you're going to use. Which will indicate if you're using SPI. I2C, UART, onboard ADC's or PWM's etc. In your shoes, I'd start off with and continue using these instructions: https://eewiki.net/display/linuxonarm/BeagleBone+Black. You can use either Debian or Ubuntu with these build instructions. I've been using these instructions since last year ( around 14 or slightly more months ), and they're very consistent. You could also start off with a premade Debian console image if you like. You can definitely compile natively on the board, but if you plan on cross compiling, you're going to need to understand the gcc toolchain thoroughly. For setup and use. Why compile anything? For the proposed project (Greenhouse control) speed is not any sort of priority so use an interpreted language, the obvious choice on BBB is Python. ... and I am also a long in the tooth software engineer with maybe 30 years of experience writing C, but I'd still recommend going with Python on this sort of project. -- 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 mailto:beagleboard%2bunsubscr...@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. I actually have done a similar control for aeroponics room setups. We are releasing it public in roughly a month once the boards come back and we finish testing on the new hardware run. Very easily can be adapted to greenhouse control as I am sure you're after the same things, water, temp, humidity, vpd, ph, ppm, disolved oxygen, dew point, flood detection, co2, lumens/lux, uvb, darkness light leak detection and all the rest of the goodness for optimal environmental control. Even the cooling opener could be adjusted/adapted to fit to automate opening roof panels. Ours is all in python and php with darkhttpd as the webserver. I dispise nodejs, it reminds me of the cluster that ruby gems are. -- 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
[beagleboard] Re: How do I find out what image my brand new Beaglebone Black is running?
That's what I was missing. Thanks! My image is dated from April so I guess I need to update it. On Friday, September 5, 2014 7:44:22 AM UTC-7, Mark A. Yoder wrote: jgold: Try: *cat /etc/dogtag * I think the May image is the latest released image, that is the image that ships on the Bone. There was a new test image pushed yesterday (4-Sep-2014). --Mark On Friday, September 5, 2014 1:48:36 AM UTC-4, jgold wrote: I just got a Beaglebone Black from Adafruit. It came with debian pre-installed. In going though the getting started guide, one of the first things it recommends to do is update the image. That's probably a good idea but the lastest image is from May so I probably already have it. I'd like to check before going to all the work of flashing a new image but I can't seem to determine the version I'm currently running. It seems like something everyone would want to know before they do an update. Anyone know how to find it? 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.
Re: [beagleboard] How do I find out what image my brand new Beaglebone Black is running?
Hi William, I had tried uname but it just gave me the linux kernel number and I couldn't find anything that would tie that to a beaglebone image. Thanks though. On Friday, September 5, 2014 1:52:13 AM UTC-7, William Pretty Security wrote: “ uname –a “ ;-) 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:* beagl...@googlegroups.com javascript: [mailto: beagl...@googlegroups.com javascript:] *On Behalf Of *jgold *Sent:* Friday, September 05, 2014 1:49 AM *To:* beagl...@googlegroups.com javascript: *Subject:* [beagleboard] How do I find out what image my brand new Beaglebone Black is running? I just got a Beaglebone Black from Adafruit. It came with debian pre-installed. In going though the getting started guide, one of the first things it recommends to do is update the image. That's probably a good idea but the lastest image is from May so I probably already have it. I'd like to check before going to all the work of flashing a new image but I can't seem to determine the version I'm currently running. It seems like something everyone would want to know before they do an update. Anyone know how to find it? 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 https://groups.google.com/d/optout. No virus found in this message. Checked by AVG - www.avg.com Version: 2014.0.4765 / Virus Database: 4015/8155 - Release Date: 09/04/14 -- 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] How do I find out what image my brand new Beaglebone Black is running?
That's the latest one I found on the images site (http://beagleboard.org/latest-images). I'm not sure I want to use a test image. Are they stable? Do they have a good reputation? On Friday, September 5, 2014 12:17:11 AM UTC-7, William Hermans wrote: You're sure the latest image is from may ? http://elinux.org/Beagleboard:BeagleBoneBlack_Debian#Debian_Image_Testing_Snapshots On Thu, Sep 4, 2014 at 10:48 PM, jgold j...@goldthwaites.com javascript: wrote: I just got a Beaglebone Black from Adafruit. It came with debian pre-installed. In going though the getting started guide, one of the first things it recommends to do is update the image. That's probably a good idea but the lastest image is from May so I probably already have it. I'd like to check before going to all the work of flashing a new image but I can't seem to determine the version I'm currently running. It seems like something everyone would want to know before they do an update. Anyone know how to find it? 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 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 do I find out what image my brand new Beaglebone Black is running?
On Fri, Sep 5, 2014 at 6:41 PM, jgold j...@goldthwaites.com wrote: That's the latest one I found on the images site (http://beagleboard.org/latest-images). I'm not sure I want to use a test image. Are they stable? Do they have a good reputation? Other then an issue with bone101 the testing release are just a snapshot. If you need bone101 use http://beagleboard.org/latest-images 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] Re: trying to learn enough to get started
You're preaching to the choir John. Except that I do not feel that JavaScript is the closest thing to a perfect anything. Again, there is no one perfect tool to rule them all. However, I do feel that because of google's V8 engine, and Nodejs, that javascript finally is something worth using for high level Rapid Application Development (RAD). Now, it is more like a Java, or dotNET done right. Performance wise, it is also very fast, and performs very close to native C. In contrast, python and php are much slower. More so for Python which is one of the slowest languages around. So, I will agree that it is not always about what is faster, but n the case of an embedded device. Fast performance means better efficiency. Which could mean the difference between a battery lasting 2 hours, versus overnight. *Shrug* Anyhow, I will not have anyone telling me what I can and cannot use, so I will try to return the favor. On Fri, Sep 5, 2014 at 3:18 PM, John Syn john3...@gmail.com wrote: From: William Hermans yyrk...@gmail.com Reply-To: beagleboard@googlegroups.com beagleboard@googlegroups.com Date: Friday, September 5, 2014 at 2:43 PM To: beagleboard@googlegroups.com beagleboard@googlegroups.com Subject: Re: [beagleboard] Re: trying to learn enough to get started *Ours is all in python and php with darkhttpd as the webserver. I dispise nodejs, it reminds me of the cluster that ruby gems are. * And this is why there is no easy guide. At least from a programing aspect. No two people are going to agree on how it should be done, and what is used to get it done. Nodejs does however get a bad rap I think. The stigma of javascript comes with it. Which is its self often misunderstood. Nothing is perfect however . . . I agree with you William; however, php and darkhttpd don't scale very well, because it lacks asynchronous I/O capability. Also, the current spec’d Javascript is pretty close to the more perfect language compared to C, Java or Python. It also has the biggest user base of any language, by far and it is the only true language that works in all browsers and on the server. BTW, there are no bad parts, just bad programmers. Regards, John On Fri, Sep 5, 2014 at 1:06 PM, Don deJuan donjuans...@gmail.com wrote: On 09/05/2014 10:04 AM, William Hermans wrote: *Why compile anything? For the proposed project (Greenhouse control)* * speed is not any sort of priority so use an interpreted language, the* * obvious choice on BBB is Python.* Well, the obvious choice to me is Nodejs, and am betting since this person has 35 years experience in related fields, that C is a possibility as well. I've only been programming for 20 or so years . . . so what the hell do i know ? On Fri, Sep 5, 2014 at 1:51 AM, c...@isbd.net wrote: William Hermans yyrk...@gmail.com wrote: [-- text/plain, encoding 7bit, charset: UTF-8, 51 lines --] You need to find and read sources about embedded Linux. Then, since your project could be done using any number of languages, you need to figure that out too. Past that, you're going to have to figure out what hardware you're going to use. Which will indicate if you're using SPI. I2C, UART, onboard ADC's or PWM's etc. In your shoes, I'd start off with and continue using these instructions: https://eewiki.net/display/linuxonarm/BeagleBone+Black. You can use either Debian or Ubuntu with these build instructions. I've been using these instructions since last year ( around 14 or slightly more months ), and they're very consistent. You could also start off with a premade Debian console image if you like. You can definitely compile natively on the board, but if you plan on cross compiling, you're going to need to understand the gcc toolchain thoroughly. For setup and use. Why compile anything? For the proposed project (Greenhouse control) speed is not any sort of priority so use an interpreted language, the obvious choice on BBB is Python. ... and I am also a long in the tooth software engineer with maybe 30 years of experience writing C, but I'd still recommend going with Python on this sort of project. -- 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. I actually have done a similar control for aeroponics room setups. We are releasing it
