**** BEGIN LOGGING AT Wed Mar 11 02:59:58 2015 Mar 11 05:24:20 What is the maximum resolution supported by HD USB webcamera in Beaglebone Black other then Logitech C920. I tried wit Logitech c270 but it supports upto only 320x240. I extended the time out and tried 640x480. only a part of image is read and remaining are green in color. Mar 11 05:25:31 the beaglebone won't restrict the resolution Mar 11 05:25:51 hello.. Mar 11 05:26:28 if you run into limitations then it's a combination of the software and the available processing power Mar 11 05:26:39 and that's something that needs to be tested case by case Mar 11 05:29:23 Thanks @tbr for the reply. Where the problem is? Mar 11 05:29:44 Guest95082: no idea, probably in the software you are using Mar 11 05:29:50 in what way is cortex a15 is better than a7? Mar 11 05:29:56 from where i can refer or try to obtain more resolution? Mar 11 05:30:34 i read that Logitech C920 uses H264 compression and can support more resolution Mar 11 05:30:58 Guest95082: you will need to adjust things to your actual use case. what are you doing? Mar 11 05:31:49 ok. Thanks @tbr Mar 11 08:00:44 any body here happen to know what hardware programmer you can use to program a TI CC3200 Mar 11 08:05:00 MUAHAHAHAHA Mar 11 08:05:04 good luck! Mar 11 08:05:24 koth start teaching Mar 11 08:05:33 teaching? Mar 11 08:05:35 no Mar 11 08:05:38 laughing Mar 11 08:06:07 the CC3200 or actually the whole CC3xxx family is a big joke Mar 11 08:06:20 TI? Mar 11 08:06:28 yes, because TI Mar 11 08:07:20 its small Mar 11 08:07:23 small matters Mar 11 08:07:42 and certifified Mar 11 08:07:57 yes, but getting working without the help of an FAE is almost impossible, and even with FAEs it's not guarranteed Mar 11 08:08:13 hm whats FAE? Mar 11 08:08:20 field application engineer Mar 11 08:08:20 field application engineer Mar 11 08:08:56 hm why? Mar 11 08:09:40 * tbr is playing with the CC25xx stuff and it's easy, but rather limited Mar 11 12:46:25 What cheaper display, I can easily use the BEAGLEBONE ? Mar 11 12:57:12 why is the best display for beaglebone ? Mar 11 12:59:11 any HDMI display should do? Mar 11 13:00:09 tbr the question was why not what Mar 11 13:00:21 so hdmi is wrong Mar 11 13:02:59 woglinde: hdmi is the answer, because vga sucks. ;) Mar 11 13:12:23 tbr, I'm waiting on an esp82xx with 802.15.4 that makes cc25xx irrelevant Mar 11 13:12:42 mdp: +1 Mar 11 13:14:10 mdp: there are some nice atmel modules on their way to me from openlabs. They'll be much better gateway hardware that has linux drivers. the CC2531 with contiki totally failed at this. Mar 11 13:15:01 any relation to the RPi module? Mar 11 13:15:09 yes, that Mar 11 13:15:12 I see the last debian image by rcn-ee uses connman instead of network manager Mar 11 13:15:14 sweet Mar 11 13:15:16 it's not rpi specific though Mar 11 13:15:25 tbr, just marketed that way, I suppose. ok Mar 11 13:15:42 it needs SPI and some GPIO IIRC Mar 11 13:17:09 just like mrf24j40, typical Mar 11 13:17:12 spi + irq Mar 11 13:17:45 *nod* Mar 11 13:18:28 cityoflights2 I would use pure ifup down Mar 11 13:49:05 Hi all! I have just compiled a new kernel image, based on ti-linux-dev repository. I used to deploy it toghether with a new distribution, over SD card. Now, is there a way to deploy it to BBB only using a SD card, ie, not using a SD card with rootfs in it? Mar 11 13:51:17 * tbr fails to understand the question Mar 11 13:55:04 so let me try again. I have compiled a kernel image. Now i have to deploy it to BBB. The way I know how to do it is by using a SDcard with a rootfs image in it and updating it using ./tools/install_kernel.sh Mar 11 13:56:00 But it needs a SD card with a rootfs in it. I wonder if there is a way to deploy only the needed files to the BBB, not the whole rootfs with the new kernel Mar 11 13:57:59 needed files being vmlinuz, dtb, initrd etc Mar 11 14:14:03 sherring: it's not that easy Mar 11 14:14:17 as long as you have kernel modules, you will need the rootfs as well Mar 11 14:14:26 other than that, it's easy to do Mar 11 14:16:59 Hi All, I’m having issues compiling a 3.14 linux kernel for the BBB. I’m trying to upgrade the kernel of the BBBAndroid distribution. The error I’m having is the following: undefined reference to `ti_clk_ll_ops' Mar 11 14:17:31 Anyone has previous experience? I’m kindof a newbie on kernel building... Mar 11 15:11:55 Hi All, i am fighting hard against an Error with my BBxM, after a lot of investigation i think the hardware might be broken. Is there someone here i can ask about that? Mar 11 15:12:51 you could start by explaining your problem... Mar 11 15:13:00 Because the same works on another BBxM. There may be a problem with the i2c bus 2 on my board, because i2c dev 2 -> i2c probe states timed out in wait_for_event: status=0000 Mar 11 15:13:30 I have the latest Ubuntu Image from RobertCNelson on my SD card Mar 11 15:13:43 you tried the same card on both boards? Mar 11 15:13:48 yes Mar 11 15:14:18 on the second one the i2c probe for i2c bus 2 states no error Mar 11 15:14:33 dani_: so you have custom peripheral on that bus? Mar 11 15:14:38 this is why i think/assume there is a hardware issue Mar 11 15:15:11 nope, just connected the HDMI to my screen and put in the SD with the Ubuntu Image Mar 11 15:17:02 and if i do the same on the second board i get video on the HDMI connected screen Mar 11 15:17:24 after some research i found out that this could be connected to EDID which uses i2c Mar 11 15:17:46 therefore i startet to try EDID via Uboot commands Mar 11 15:18:02 # i2c dev 2 Mar 11 15:18:09 # i2c probe Mar 11 15:18:22 which should state Valid chip addresses: 50 Mar 11 15:18:40 what it also does on the one (working) board Mar 11 15:19:15 afaik i2c#2 on uboot does not have to be i2c#2 in linux Mar 11 15:20:06 but on the other one there is only Timed out in wait_for_event: status=0000 and check if oads/pull-ups of bus 2 are properly configured Mar 11 15:20:24 both boards tested in uboot Mar 11 15:20:58 to make sure that there is no confusion with uboot and linux Mar 11 15:22:50 is there any possibility that the pads/pullups got misconfigured, and if yes, how can they be configured again (if possible) Mar 11 15:23:42 I don't know about xM, but the pullups are very likely real resistors on the board Mar 11 15:23:53 dani_, i2c on omap3 has been regressing on mainline these last few releases.. Mar 11 15:32:51 rnc-ee, but the stange thing is that the same sd is working well in the other board (which is the same model and revision) Mar 11 15:32:57 but besides of all that Mar 11 15:33:43 dani_, all my SanDisk Ultra's are showing mmc 110 on the xM, but work everywhere else.. ;) Mar 11 15:33:59 is there any possibility to deactivate the EDID stuff in the image and instead use the HDMI the same way, the old year 2011 angstrom version uses it? Mar 11 15:34:13 you can override it in /boot/uEnv.txt Mar 11 15:35:50 what is u-boot in beaglebone black?? what's its use? Mar 11 15:36:39 dani_, add: cmdline=video=DVI-D-1:1024x768@60e to /boot/uEnv.txt Mar 11 15:37:11 ok, i tried different settings in uEnv, but nothing worked, will check this one now thanks rcn-ee, will get back in a few mins Mar 11 15:38:26 should i add anything else in uEnv.txt, atm I have only cmdline=video=DVI-D-1:1024x768@60e (like you advised) in there Mar 11 15:39:51 well, just what was in their by default.. http://paste.debian.net/160757 (uname_r & uuid) Mar 11 15:40:35 thunder_kk, it's the bootloader... due to limitations of the internal "bootrom" we need something to help load linux.. Mar 11 15:41:58 okay!! thanks @rcn-ee . can you please give some nice links or tutorials to device tree compiler. i have problem accessing gpio and peripherals Mar 11 15:42:32 thunder_kk, the best links are by example, 3.8, 3.14 or mainline? Mar 11 15:43:56 i didn't understand @rcn-ee please elaborate Mar 11 15:44:47 thunder_kk, the link i'm going to send you depends on which kernel your using.. Mar 11 15:46:28 okay i am using 3.8.13 kernel version. please give links for them Mar 11 15:47:42 @rcn-ee thanks, but it did not work. still tells me in the serial console, that the i2c arbitration lost and some seconds later controller timed out this in a loop :D Mar 11 15:49:11 thunder_kk, take a look at: https://github.com/beagleboard/linux/tree/3.8/firmware/capes every interface as been used atleast once.. Mar 11 15:49:32 dani_, sounds like it's dying.. Mar 11 15:49:54 rcn-ee or it is already dead ;) Mar 11 15:49:59 at least the i2c Mar 11 15:50:27 dani_, i had to do this to the classic beagleboard: https://github.com/RobertCNelson/linux-dev/blob/master/patches/dts/0008-ARM-dts-omap3-beagle-ddc-i2c-bus-is-not-responding-d.patch Mar 11 15:50:48 as it i2c seems completely broken on omap34xx Mar 11 15:51:14 luckly the twl4030 i2c still works, otherwise nothing would work.. Mar 11 15:51:43 twl4030 sets all the core voltages so if i2c is not working, pretty much nothing works.. Mar 11 15:52:51 @rcn-ee thanks i will try experimenting with them. last question. how to use the files given in the link. please give a brief path i need to follow Mar 11 15:53:54 rcn-ee, i think i read about that in some google groups entry. For me as a dumb "user" how does one implement such a patch? Mar 11 16:20:16 Thanks to all for your help Mar 11 16:30:34 hey Mar 11 16:30:45 quick question Mar 11 16:31:00 the getting started page doesn't recognize my BBB rev C Mar 11 16:31:17 is something wrong with the board, or did the site stop working? Mar 11 16:36:30 "doesn't recognize"? Mar 11 18:13:43 hello, I was wondering if it is possible to output 5V from a digital output port with the beaglebone black. If yes, how to? Mar 11 18:18:24 simon_r: you'll need a level converter, BBB i/o is all 3.3V Mar 11 18:33:25 simon_r: 3.3V is the here and now, for almost everything you can find a 3.3V compatible part (although they might be SMD parts). Mar 11 18:39:09 where did you guys buy external power supplies for bbb? Mar 11 18:39:21 i am using usb from my pc now Mar 11 18:52:26 talin: I bought from a local retailer, see here for the specs and some links to online retailers: http://elinux.org/Beagleboard:BeagleBone_Black_Accessories#Power_Supplies Mar 11 18:52:37 smurray, thank you, noble sir Mar 11 18:55:07 talin: no problem Mar 11 19:40:48 Hi All, I’m having issues compiling a 3.14 linux kernel for the BBB. I’m trying to upgrade the kernel of the BBBAndroid distribution. The error I’m having is the following: undefined reference to `ti_clk_ll_ops' Mar 11 19:42:05 The reason that I’m doing this is because the bluez stack does not work on kernel 3.8 for ble functionality Mar 11 19:45:17 can I attach a SATA disk to a beaglebone black somehow? Mar 11 19:45:37 with >= 7200rpm HDD? Mar 11 19:45:53 I want to make a mini build farm for a distro that I want to port to the beaglebone black Mar 11 19:46:01 and it would be nice to have high speed disk access Mar 11 19:46:13 also, I'm wanting to know if I can add a RAM 4G expansion somehow to a bbb Mar 11 19:51:48 zacts: no and no Mar 11 19:52:32 speedwise you'll likley not beat cross-compiling on a fast x86 box anyways Mar 11 19:53:07 ok I see Mar 11 19:53:26 if you really do want to native compile, there are other ARM boards that have SATA Mar 11 20:06:20 I've got a hardware/transmission line question that I'm stumped on. I need to connect 11 7-seg displays to my bbb. Currently, we're planning on using cat5 24 gauge cables. The displays will be several hundred feet from the bbb, can anyone tell me if this distance will be a problem? Much thanks for any advice. Mar 11 20:09:33 Additional info to this question....I'm planning on using a bcd-to-7-seg decoder with input latching (on the same board as the displays), and the displays will only be updated maybe once an hour or so. So timing constraints shouldn't be an issue. Mar 11 20:17:04 <_av500_> several hundred feet calls for proper line drivers Mar 11 20:17:27 <_av500_> it may or may not work just like that Mar 11 20:18:17 and local power supply for the displays Mar 11 20:21:35 Ok, I'm going to try booting for the first time ever for me, the beaglebone black Mar 11 20:23:44 i was worried about all that. i'm definitely a software guy and stepping out of my comfort zone designing hardware. i'll do some research on line drivers. Mar 11 20:29:35 hello.... does someone know if EnOcean products works on BBB ? Mar 11 20:34:47 <_av500_> define "works" Mar 11 20:35:35 hello Mar 11 20:36:20 we use diode only for security, to make power take one direction? doesn' it ? Mar 11 20:36:32 <_av500_> ??? Mar 11 20:36:55 I guess he means a protection diode Mar 11 20:37:20 <_av500_> yes Mar 11 20:37:26 <_av500_> but what is the question? Mar 11 20:39:00 av500: can ou define "proper" in terms of line drivers? (sorry if that's an open ended question (i'm just looking for some guidiance in the right direction (or really, just any good advice))) Mar 11 20:39:40 _av500_: i just get an example from adafruit, i see that they use diode with dc motor Mar 11 20:40:25 <_av500_> yes, dc motors need diodes to protect from the reverse current Mar 11 20:40:35 <_av500_> endoped: not my expertise Mar 11 20:41:01 <_av500_> look at e.g. RS422 Mar 11 20:41:06 _av500_: thanks a lot Mar 11 20:41:10 tbr: https://learn.adafruit.com/assets/2341 Mar 11 20:41:42 <_av500_> and/or RS485 Mar 11 20:42:12 <_av500_> yes, thats a diode Mar 11 20:42:26 right on, will do. thank you Mar 11 20:42:59 <_av500_> http://en.wikipedia.org/wiki/Snubber Mar 11 20:49:46 endoped: cables present a capacitive load. so you cannot just connect standard logic chips as the overcurrent during switches will kill them Mar 11 20:50:05 endoped: also long cables have siginificant resistance which will degrade your voltage levels Mar 11 20:50:16 endoped: get a local EE to explain you that Mar 11 20:50:48 endoped: f2f it takes maybe half an hour to get you all the knowledge you need, reading books probably a couple of weeks Mar 11 20:52:43 i don't have a local EE to consult....that role has been defaulted to me. i took a course on transmission lines in college, so I sort of remember some of it...mostly just enough to know that it'll be a problem though. Mar 11 20:53:36 yeah, what you get in theory about transmission lines is almost all irrelevant for this problem Mar 11 20:53:51 s/get/learn/ Mar 11 20:54:08 throwing rs485 or so at it /might/ be enough. Mar 11 20:54:26 endoped: get the book "halbleiterschaltungstechnik" by tietze & schenk Mar 11 20:55:23 endoped: the 14th edition Mar 11 20:58:19 endoped: KotH is the real EE but those distances are typical with normal RS485 parts. Mar 11 20:59:12 * KotH is on the way to becomming a theoretical computer scientist Mar 11 20:59:46 KotH: Is that what you're getting your PhD in? Mar 11 21:02:13 KotH: a quick search only brought up german pages, is there an english version? goergem: thank you. i've given some consideration to rs485, but it's all new knowledge to me and I haven't really dug in yet. I'll do some more reading on it. Mar 11 21:02:39 endoped: step #1 in learning electronics is to learn german Mar 11 21:02:46 hehe Mar 11 21:03:08 endoped: the best book on electronics (the one mentioned above) is only available in german Mar 11 21:04:01 just got in. Mar 11 21:04:07 haha! I think that may be just a tad too steep of a learning curve right now. Mar 11 21:04:12 anyone affected by the x-flare today? Mar 11 21:04:13 http://spaceweather.com/images2015/11mar15/blackout.jpg?PHPSESSID=bnkku1s0kb5q8s2fgqrr2b8pv6 Mar 11 21:04:34 * KotH is nicely shielded by any flares Mar 11 21:04:48 git that aluminum had back on? Mar 11 21:04:49 endoped: well... your fault for not learning german before ;) Mar 11 21:05:12 djlewis: nice, big hunk of stone under my feet Mar 11 21:07:38 KotH: French is first on my queue, maybe I'll get to German some day Mar 11 21:09:02 georgem: if you know english, french and german should be about the same difficulty level Mar 11 21:12:54 KoTH at least you aren't trying to theoretically be a computer scientist! Mar 11 21:13:50 GenTooMan: in practice, i am Mar 11 21:16:17 Well that would explain a bit. Mar 11 21:17:24 GenTooMan: it would explain what? Mar 11 21:18:27 喂 Mar 11 21:24:11 You understood the issues of HDL's a bit better than a hobbiest? : Mar 11 21:26:00 GenTooMan: well, most people don't care about properly learning stuff, so they get stuck very soon. Mar 11 21:26:42 GenTooMan: and being an EE helps with HDL but does not necessarily mean that you know it. but learning it (properly) helps Mar 11 21:28:49 GenTooMan: oh.. and to answer your question: synthesis of logic is hard, very hard Mar 11 21:29:01 KotH: Chocolate is hard Mar 11 21:29:11 but not as hard as logic Mar 11 21:29:50 GenTooMan: although it might seem similar to what a compiler does, the solution space is a lot larger than with a compiler, and it's not enough to find one correct solution, but it needs to be fast enough as well and may not use too many gates Mar 11 21:30:09 GenTooMan: this makes the synthesis problem a couple of magnitudes harder than compiler Mar 11 21:30:22 GenTooMan: and this is even before mapping it to an actual device Mar 11 21:30:52 GenTooMan: place and route is another NP hard problem that alone is of at least compiler complexity Mar 11 21:32:11 The wider the search path is (IE number of variations) makes the problem grow exponentially. I've written compilors but scratching my head a bit on HDLs for a while. Routing has to have rule sets and that is a mess in itself. Often they use defined patterns for portions of that. Some of the IC's I've seen look like art work :D Mar 11 21:32:59 If it were easy though everyone would have done it. I can tell they've not. :D Mar 11 21:33:43 GenTooMan: the micrographs of most of the chips you see, were done at a time when placement and routing was done mostly by hand. so yes, these were art Mar 11 21:34:19 GenTooMan: and to this day, intel still does a big portion of layout and routing by hand Mar 11 21:34:48 GenTooMan: everyone else does it automatically, though :) Mar 11 21:42:27 Most of those are based on specialized hardware computers for automatic routing. Mar 11 21:43:14 yes, hardware runs software Mar 11 21:45:45 I wonder what stage the simulators generate too. Might be interesting to see what's inside the layers of GHDL. Mar 11 21:47:22 simulation is very different from synthesis Mar 11 21:47:57 the way simulators for vhdl/verilog work is very well documented and can be found in most text books on HDL design Mar 11 21:56:43 can L293D help todrive 4 DC motors. Mar 11 21:57:18 It's been a long time since I've abused a book on the subject to be honest. Mar 11 21:57:37 jamesaxl: do you know what a datasheet is? Mar 11 21:58:06 GenTooMan: you shouldnt abuse books. only nazis and other people who are afraid of the truth do that Mar 11 21:58:21 KotH: of course :) Mar 11 21:58:31 jamesaxl: have you read the L293D datasbe Mar 11 21:58:35 jamesaxl: have you read the L293D datasheet? Mar 11 21:58:43 KotH: i am reading Mar 11 21:58:54 why do you ask before reading it? Mar 11 21:59:43 You probably should write down what you want to do. It always helps to be specific in your goals. I have to beat up people in S&M I mean sales and marketing each time they throw mud at the wall. Mar 11 22:00:22 KotH: bcs i am drinking tea Mar 11 22:01:55 jamesaxl: willfull lazyness and burdening other people due to that can be seen as an insult Mar 11 22:02:39 KotH: of course no i just a lot that's why Mar 11 22:03:25 jamesaxl: everyone just a lot Mar 11 22:06:26 KotH: then i can drive 2 motors Mar 11 22:09:09 I suggest you start by deciding what it is you need or want to do? Mar 11 22:09:26 Just driving a DC motor for example is ... vague. Mar 11 22:10:02 GenTooMan: for a small car, and after for quadrocopter Mar 11 22:11:03 are they brushless motors or Brushed motors? permanant magnent or series wound / field controlled? Mar 11 22:11:13 jamesaxl: get a copy of tietze&schenk and read it Mar 11 22:11:24 GenTooMan: he said dc motors Mar 11 22:12:00 Well some people think BLDC's are DC motors so ... I was trying to narrow things down Mar 11 22:12:22 people also think that using a fan is active cooling Mar 11 22:13:48 (twitching) Mar 11 22:15:41 shit i did not find that book axxxx Mar 11 22:17:43 GenTooMan: i have not gotten your S&M, did you mean Metallica ? Mar 11 22:18:02 http://www.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Dstripbooks&field-keywords=978-3-540-00429-5 Mar 11 22:18:59 S.&.M. S-Sales &-And M-Marketing or sadism and masochism (it's about the same) Mar 11 22:20:06 GenTooMan: it is like Freemasons Mar 11 22:20:36 GenTooMan: the english version is about 10y out of date Mar 11 22:20:56 GenTooMan: it's based on edition 10 or 11 Mar 11 22:22:26 GenTooMan: as i said, step #1: learn german Mar 11 22:24:46 you mean Jamesaxl? I know very little german despite aglo saxan being derived from, seems a bit more greek influence is in modern german. Mar 11 22:25:32 KotH: have you made something interesting with beagle? Mar 11 22:26:24 What's interesting? It depends on the person. I'm just using to experiment with making some test tools a DSO and a spectrum analyzer. Mar 11 22:27:48 i get you both, GenTooMan and KotH :), I think you belong to France Mar 11 22:29:24 i go to sleep, and tomorrow i a going to begin reading the book **** ENDING LOGGING AT Thu Mar 12 02:59:58 2015