**** BEGIN LOGGING AT Sun May 19 02:59:58 2013 May 19 03:13:20 if anyone has successfully controlled a servo with a bbb, please ping me :) May 19 03:42:53 nay one have uarts and analog on BBBK working together ? May 19 04:21:49 I wonder how many BBB's have been sold, May 19 04:30:11 didof3: As many as were produced so far, I'd imagine. May 19 04:30:19 production is still ramping up May 19 04:31:37 * dm8tbr read some numbers recently, but can't remember May 19 04:32:04 but for sure production is running at 100% capacity May 19 04:32:13 was !2,000+ ordered on Mouser when I ordered mine May 19 04:32:30 12,000* May 19 04:43:39 so I've been playing around with my A4 BBB. Got the 5-08 Angstrom flashed into eMMC. Seems to work. May 19 04:44:12 Interesting thing tho - the USB Host port seems to die after a few minutes. Is this a known issue? May 19 04:44:45 I May 19 04:45:00 what were you doing on the host port? May 19 04:45:10 've got a little unpowered hub with mouse & kbd May 19 04:45:29 * dm8tbr wonders if the port is musb or ehci May 19 04:45:31 just so I can use the X interface... May 19 04:45:52 I'd try a powered hub or a different hub, just in case May 19 04:46:09 yeah - worth a shot. May 19 04:46:16 emeb_mac its a know issue affecting a few people May 19 04:46:21 known* May 19 04:46:36 m_billybob: aha - any idea what the underlying issue is? May 19 04:46:50 no, ive just noticed some chatter on the groups about it May 19 04:47:13 m_billybob: thx - which groups? May 19 04:47:24 beagleboard group May 19 04:47:30 right. May 19 04:47:48 haven't looked there in a while - I'm on the alpha group mostly. May 19 04:48:16 i get mails sent to me May 19 04:48:35 yep May 19 04:49:22 other than that the BBB + 17" DVI monitor + USB hub/mouse/kbd + ethernet connection seems to work fine for simple stuff. May 19 04:49:25 most like that i dont bother reading but if gerald or robert reply sometimes i do May 19 04:49:49 think gerald replied so i read it May 19 04:50:30 seems to work great with debian on it May 19 04:50:50 although debian image im using is cli only May 19 05:43:26 so after poking around in a simple dts file, DT almost seems silly May 19 06:19:03 Hello all :) May 19 07:58:55 atlast got working narcissus online image!! May 19 08:55:49 http://cache4.bdcdn.net/assets/images/book/large/9781/8496/9781849695787.jpg May 19 10:02:34 has anyone got PWM or controlling a servo working with a bbb yet? May 19 10:04:55 also, does anyone running a bbb have a /sys/kernel/debug/omap_mux/ dir or a /sys/class/pwm/ehrpwm.* dir? May 19 10:06:08 helo May 19 10:06:44 anybody can help with beaglebone black? May 19 12:28:25 Can someone please tell me; For a beaglebone board does linux and uboot have their own separate linker files to define the memory layout or is it just uboot that does? May 19 14:23:55 hey. i am trying to run a OpenCV on beagleboard xm...but i thing i do not compile the cpp corectly...how should i crosscompile? May 19 14:38:24 correctly May 19 15:32:43 I have run some test on the beagle board black A/D using the JS script analogRead function. This function reports a value of 0 to 1 for zero to full scale (1.8v) input. The input was the ADC refereence signal using a 50k 10 turn pot and I am seeing in excess of 4 to 5 bits of noise/uncertinity. This seams a lot for a 12 bit A/D. May 19 15:43:52 I guess no one has any interset inthe A/D. May 19 15:45:58 Tommie_: without knowing anything about your test setup it is impossible to comment on your results. May 19 15:46:28 what did I leave out? May 19 15:49:20 tommie_: everything. start with the type of pot used. manufacturing quality varies - maybe you have a bad component. also, the design of your test circuit would help. did you just hook a pot up to some random gpios, or is it more elaborate? May 19 15:56:21 kaetech: I have run a linearity test of the entire range of the A/D and see the same unsertinity with 100 sample average. I have even triedd 1000 sample average. Connected to board P9 with 3 inch wire wrap leads to high quality pot. Using scope I see less than May 19 16:15:56 tklun: 1) a pot is a very bad voltage reference, known to have a lot of noise and uncertaintiy (think carbon resisor noise and vibration of the pick up), 2) 50k is a very high input impedance for an ADC, 3) 12bit are the raw resolution, the actual resolution of an on-chip ADC is usually 1-3 bits lower, how much lower depends highly on the chip and board design May 19 16:17:56 er... May 19 16:18:09 why do guys leave before i can answer them? May 19 16:28:21 No patience? May 19 16:28:39 ha, i was wondering.. May 19 16:50:02 I get a timeout error after 35 minutes of building on EC2, but know details of what it was doing. How can I track it down or get more information? May 19 16:50:12 s/know/no/ May 19 18:42:18 Hello May 19 18:45:43 Hello May 19 18:46:01 Has anyone had success using the pru? May 19 18:47:10 several people I think May 19 19:03:15 dm8tbr, do u know of any good posts with step by steps on it? May 19 19:06:08 no May 19 19:19:45 Hi, I am new to Beaglebone.. just starting out. I downloaded the latest Angstrom image but there is no omap_mux and I was trying to use that. So could anyone direct me where to download image of kernel version 3.2? like the release date. I dont know which one to download here May 19 19:19:47 http://downloads.angstrom-distribution.org/demo/beaglebone/archive/ May 19 19:20:35 billy May 19 19:20:46 hi May 19 19:20:53 i have a quick question May 19 19:21:23 i've installed debian 7.0.0 on beagleboard black May 19 19:21:42 it's working fine but I cannot get full resolution on my 1280 - 1024 monitor May 19 19:22:09 and the monitor comes up as "unknown". any idea how i can get it working? May 19 19:26:41 hello people May 19 19:26:47 Hello May 19 19:28:08 When I boot my beaglebone black after changing my password through command line, it freezes and still tries to automaitcly login May 19 19:28:15 any one have any suggestions? May 19 19:55:32 JohnChimpo: is autologin setup in /etc/inittab May 19 20:12:00 ka6sox-away: emeb_mac ? May 19 20:12:32 mrpackethead: here May 19 20:12:49 pcbs for Bcc shoudl arrive this week May 19 20:12:58 mrpackethead: sweeet! May 19 20:13:12 i was just ordereing teh BOM, but having problmes with getting the oscillator May 19 20:13:23 is there anything special about htat part you picked May 19 20:13:35 shouldn't be. Let me check for subs... May 19 20:13:39 i found what i think looks like a suitable replacement May 19 20:14:08 mouser were all out of stock May 19 20:14:39 digikey part 887-1379-1-ND looks ok May 19 20:14:51 same pinout,size and function May 19 20:17:37 checking... May 19 20:18:45 that should be fine. May 19 20:20:15 strange that Mouser suddenly has nothing in that range. May 19 20:20:55 other frequencies would work too - nothing set in stone about the FPGA clock. May 19 20:37:44 emeb_mac, other nice thing, was that i just needed to order from DK. May 19 20:38:27 cool. nice that DK and Mouser don't overlap 100% - gives one more options. May 19 20:46:49 bom for 10 boards cost me about $220 May 19 20:48:04 i've found, mouser is cheaper for small quanitys May 19 20:48:12 dk, will eat them when it comes to full reels May 19 21:31:05 so $22/ea - not bad. Probably a lot cheaper if build qty was even larger. May 19 21:48:00 can i use the PWM output from the bbb to vary the speed of a standard motor? May 19 21:48:23 it is possible to do that, whether you can do it, we cannot answer May 19 21:53:40 KotH: cheers, i'll look into it. May 19 21:53:51 how do i find out what voltage output is each pin? May 19 21:55:46 they are in the TRM and datasheets May 19 21:56:03 you should have a good look at all provided documentation before engaging in self build electronics May 19 21:56:30 as for the motor control: use other peoples motor control boards as examples May 19 21:57:24 oh.. and dont be intimidated by the amount of documentation for the cpu.. you dont have to read all, just the important bits May 19 21:57:25 KotH: http://www.robotroom.com/PWM/MotorSpeedControlSchematic.gif does that look fine? May 19 21:57:53 KotH: the TRM? do you mean the system reference manual? May 19 21:57:56 juup, looks fine for simple pwm May 19 21:58:34 make sure the transistor can withstand at least twice, better three times the supply voltage and at least twice the maximum motor current May 19 21:59:09 the reistor has to be adjusted to allow the appropriate base current at the estimated maximum operation current of the motor May 19 21:59:44 no, the processor technical reference manual May 19 22:12:17 KotH: urgh, where can i find that? May 19 22:15:07 ti homepage May 19 22:15:23 google for the processor part number May 19 22:17:58 hey there May 19 22:18:15 good night here May 19 22:19:00 here a question for you guys: when i connect my BBB (Angstrom) I can see the eMMC mount on my mac May 19 22:19:50 is there any chance to change the mount point to an empty folder?. my guess right now would be the fstab-entry. can someone confirm that? May 19 22:25:11 KotH: sorry, stillcan't seem to find it May 19 22:25:40 KotH: i'm referring to the a pin on the bbb - like P9_14. which i will use as a pwm output. i assume i need to find the voltage it provides to figure out what resistor i need in that pwm circuit i showed earlier? May 19 22:53:30 thurgod, I fixed it by deleteing my password from shadow file May 20 02:22:07 Rickta59: howdy! May 20 02:30:36 Hello everyone! I've heard of the beagleboard some time ago, and I've just found out about the new beaglebone black. I've found it awesome, but what I don't undestand is why is it so much cheaper than it's predecessor, the beaglebone? May 20 02:32:23 NaOH: time May 20 02:32:51 and the Rasbperry Pi May 20 02:35:26 NaOH: volume production May 20 02:46:18 slug: Are you the same slug who hung out on #python about fifteen years ago? May 20 02:46:37 shapr: probably not May 20 02:46:47 Ah, too bad May 20 02:47:21 shapr: you bought apple stock back then as a gift to me or something ? ;) May 20 02:47:57 no such luck :-) May 20 02:48:06 Though my best friend did buy a bunch of apple stock back then. **** ENDING LOGGING AT Mon May 20 02:59:59 2013