**** BEGIN LOGGING AT Sun Aug 04 02:59:58 2013 Aug 04 03:25:39 mrpackethead, network trolls? Aug 04 03:28:39 them too Aug 04 03:34:01 jelly belly trolls Aug 04 03:36:10 hey emeb_mac Aug 04 03:36:23 hey mrpacket_ Aug 04 03:36:37 you lost your head! Aug 04 03:38:03 yes, so it would seem Aug 04 03:41:05 i'm thikning i'm goign to buy altium Aug 04 03:44:58 bring $$ Aug 04 03:47:12 * emeb_mac recently bought DipTrace Aug 04 03:47:29 seems good so far - have done a couple designs with it. Aug 04 04:26:04 why choose altium over cadence Aug 04 04:43:09 mrpacket_ so why altium ? just curious Aug 04 04:43:17 1. Cadence is'nt an option. they never bothered to call back Aug 04 04:48:13 i'm migrating up from Eagle Aug 04 04:48:17 i only want to do this once Aug 04 04:48:24 its going to be painful as it is. Aug 04 04:48:37 there is a migration path from eagle --> altium Aug 04 04:57:36 both cadence and altium look like viable options Aug 04 05:03:24 sounds good Aug 04 05:03:33 wulf my buddy swares byt orcad Aug 04 05:03:46 but hes owned llisences for altium years back too Aug 04 05:04:26 he wouldnt touch eagle with your computer if you paid him lol Aug 04 05:05:12 You know though we all get older and set in our ways, he is no different Aug 04 05:06:51 mrpacket_, so im looking at some of RCN's stuff lately, looks like SGX drivers are in 3.7.x, but not for us in 3.8.x ? thinking to myself wtf ?! Aug 04 05:07:12 Anyone have experience with Connman? Aug 04 05:07:16 Says he has SGX driver working on the XM Aug 04 05:07:24 ask your question Aug 04 05:07:53 see channel title for further explanation lol Aug 04 05:08:02 "dont ask to ask, njust ask" Aug 04 05:10:05 I am trying to get WIFI to auto connect and from my understanding it needs to be done in ConnMan, but I keep getting the error "net.connman.Error.Failed: Input/output error" when I attempt to connect Aug 04 05:19:16 not even sure what the SGX driver is Aug 04 05:19:32 hardware video on the bbb Aug 04 05:19:39 ahh. Aug 04 05:19:42 video hardware ? Aug 04 05:19:47 something of zero interest to me Aug 04 05:20:04 Id have them remove the video Aug 04 05:20:10 :-) Aug 04 05:20:11 its something i have some interrest in Aug 04 05:20:18 sure. Aug 04 05:20:27 from a gaming perspective only ( read: android gaming platform ) Aug 04 05:20:46 i'm interested in internet of "things" Aug 04 05:20:55 mostly same here too Aug 04 05:21:12 stand along storage device would be nice Aug 04 05:21:16 screens, keyboards and general hid are best moved away to other devices Aug 04 05:21:18 stand alone* Aug 04 05:21:28 must have had one beer too many tonight. Aug 04 05:21:34 like a hard-drive? Aug 04 05:21:59 well just rought ideas was USB hub, a few USB HDDS, etc, for a home storage "device" Aug 04 05:22:24 nothing for professional grade stuff Aug 04 05:22:57 would need 1) GbE, and 2 ) SATA minimum for that IMHO Aug 04 05:23:16 SAS for most possibly Aug 04 05:24:09 the USB port works pretty good though i must say. but im not exactly hammering it yet Aug 04 05:29:07 anyhow for this purpose the cubieboard 2 probably has a slight advantage, but still no GbE Aug 04 07:08:21 <_av500_> ahoi Aug 04 07:11:09 <_av500_> wasnt there a totally free versoin of Eagle? Aug 04 07:11:14 <_av500_> is kicad any good? Aug 04 07:11:24 <_av500_> or should I just use pen and pencil? Aug 04 07:21:21 av500: hello Aug 04 07:21:33 there is a free version of eagle Aug 04 07:21:40 it is layer / size limited Aug 04 07:21:45 100 x 80mm board Aug 04 07:21:49 and 2 layers Aug 04 07:21:55 which is *handy* Aug 04 07:22:07 i have the full version of eagle Aug 04 07:22:22 but, I can seriously see its costing me lots of time Aug 04 07:26:32 <_av500_> I see a price of €62 for "free"? Aug 04 07:27:47 <_av500_> ah Aug 04 07:27:48 <_av500_> found it Aug 04 07:34:54 * ogra_ just uses apt-get install eagle for that :P Aug 04 07:43:19 <_av500_> omg, I forgot everything about using eagle Aug 04 07:47:59 _av500_: use autoschema and autorouter Aug 04 07:48:19 _av500_, just pay attention to the footprints that comes with Eagle, quite a few has errors unfortunately Aug 04 07:50:57 _av500_, Starting with Eagle today, I would consider just replacing more or less the whole library with something that is actually tested. Aug 04 07:51:36 Here's one idea, I haven't used it myself, but I think it is tested by others at least: https://github.com/sparkfun/SparkFun-Eagle-Libraries Aug 04 07:56:14 well if you don't draw a part yourself, then it would be probably wise to check it :) Aug 04 08:18:07 Howdy - Yesterday, I spoke with someone who mentioned modifying the uEnv.txt file. The instructions said to copy it to /media/boot, however, there is no /media/boot on the BBB. Am I missing something Aug 04 08:18:09 ? Aug 04 08:36:52 webcam video working fine, wondering how to get audio into the rtsp stream from the BBB, does reading /dev/video0 capture video and audio, or I also need audio stream separately? BBB/c920/boneCV Aug 04 08:39:58 Audio is separate from video Aug 04 09:24:19 Does anyone has any problem with microSD boot? Aug 04 09:25:14 <_av500_> as in? Aug 04 09:26:59 hi _av50_ Aug 04 09:27:35 today I've tried to update my Angstrom Distribution based on Circuitco manual. Aug 04 09:28:20 after following the instructions, my BBB can not boot anymore Aug 04 09:28:35 hello everyone Aug 04 09:28:38 hi Aug 04 09:28:56 i want to basically work for beaglebone development Aug 04 09:29:12 is GSOC is only way to contribute? Aug 04 09:30:12 I'm new here so I don't relly know the answer -_- Aug 04 09:30:21 anyone experienced here Aug 04 09:30:23 ? Aug 04 09:30:51 jason kridner sir are you present? Aug 04 09:31:11 i want to work on arduino library porting for beaglebone black Aug 04 09:31:15 it`s open source, everyone can contribute to and benefit from. Aug 04 09:31:35 so what are possible ways to contribute to this project Aug 04 09:34:35 http://elinux.org/Userspace_Arduino Aug 04 09:34:54 see names on the top of the page and get in touch Aug 04 09:35:07 got to go, have a great sunday! Aug 04 09:36:33 <_av500_> staneja: no, GSoC is not the only way Aug 04 09:36:58 <_av500_> feel free to join and do some work Aug 04 09:37:07 <_av500_> get used to the BBB and the stuff you are interested in Aug 04 09:37:09 <_av500_> hang out here Aug 04 09:37:19 <_av500_> or in other more dedicated channels Aug 04 09:37:24 <_av500_> follow the gits Aug 04 09:37:28 <_av500_> and/or mailing lists Aug 04 09:37:53 <_av500_> and dont expect step by step guides Aug 04 09:39:14 ok Aug 04 10:25:17 i'm kicking myself Aug 04 10:25:23 i have designed somethign poorly. Aug 04 10:25:25 :-( Aug 04 10:37:29 mrpackethead: if you find out about anything that makes altium better, i'd be interested to find it out Aug 04 10:37:57 well, as i said earlier, hard to give Cadence any points Aug 04 10:38:02 because they simply dont' repsond Aug 04 10:38:04 but after moving eagle-cadence i agree you dont want to do that again Aug 04 10:38:38 i picked cadence because it has pspice Aug 04 10:38:48 eagle has some spice stuff in it Aug 04 10:38:56 sorry altium Aug 04 10:39:38 having spice integrated doesnt matter much, what matters whether it has enough libraries with all the parts you need Aug 04 10:39:51 chocolate troll Aug 04 10:39:54 good moring Aug 04 10:39:57 cadence has some impedance control, rf verification and bga breakout Aug 04 10:40:02 moin, kiwi troll Aug 04 10:40:16 KotH: how many times do i have to tell you Aug 04 10:40:21 i'm a a hobbit! Aug 04 10:40:23 not a troll Aug 04 10:40:35 jaja... kiwi hobbit... Aug 04 10:41:07 the learning slope for altium is well steep Aug 04 10:41:24 print out the kbd shortcuts Aug 04 10:41:28 that helps a lot :) Aug 04 10:41:31 I'm going to have to invest a few days of training i am guess. Aug 04 10:41:34 as it should be, it's much more functional and capable than eagle. Aug 04 10:41:41 i last used eagle v4.15 Aug 04 10:42:10 well, thats one benefit of cadence, EE professors everywhere have written "howtos" for their beginner classes and indexed them in google. Aug 04 10:42:37 JFK911: thats one benefit of altium, theres howtos been written by EE's Aug 04 10:42:48 *g* Aug 04 10:43:02 you know what they say Aug 04 10:43:05 it seems really popular, lots of people talk about altium Aug 04 10:43:11 i just dont know why Aug 04 10:43:11 those that can, do. those that can't teach Aug 04 10:43:28 well, it's still the cheapest professional eda package Aug 04 10:43:38 which is the cheapest? Aug 04 10:43:47 altium Aug 04 10:44:08 so, you dpont' consider Cadence Professional? Aug 04 10:44:26 hmm? Aug 04 10:44:26 candence is apparently cheaper than altium Aug 04 10:44:34 wasnt cadence twice as expensive as altium? Aug 04 10:44:37 really? Aug 04 10:44:38 huh? Aug 04 10:44:38 ok Aug 04 10:44:44 the package im using costs a lot Aug 04 10:45:15 what i dont' like, is that altimum will force me into having windows Aug 04 10:45:34 I'm almost completely unreliant on windows now Aug 04 10:45:37 and sigh. Aug 04 10:46:04 i might have just got out of jail Aug 04 10:46:05 :-) Aug 04 10:46:13 I speced an LM26 temp sensor Aug 04 10:46:21 * KotH knows that feeling Aug 04 10:46:29 but failed to fully read the datasheet Aug 04 10:46:38 its Open-Drain, Active low Aug 04 10:46:46 what i needed was Active High Aug 04 10:46:48 oh.. Aug 04 10:46:48 lol Aug 04 10:46:51 but such a part does not exisit Aug 04 10:46:52 mentor graphics is windoze only too Aug 04 10:46:55 beginners mistake! _D Aug 04 10:46:57 :-D Aug 04 10:47:03 pcb is made Aug 04 10:47:04 :-( Aug 04 10:47:09 but how is this for lucky Aug 04 10:47:19 microchip make a part ( MCP9502 ) Aug 04 10:47:24 that is functionally the same Aug 04 10:47:35 and has the same footprint and Aug 04 10:47:53 *almost* same footprint Aug 04 10:48:01 but i can at least make this work Aug 04 10:48:13 this proves that someone else thinks like you Aug 04 10:48:37 JFK911: what? Aug 04 10:49:17 the first part didn't work per your assumption Aug 04 10:49:21 the replacement you found does Aug 04 10:49:53 it doesnt matter that "active low is correct" :) Aug 04 10:50:16 someone made one that works the other way for you Aug 04 10:51:45 the TI documentation is a bit dubious Aug 04 10:51:56 it eludes that such a part exisits! Aug 04 10:54:33 theres a good import engine in altium Aug 04 10:54:44 i can import the cadence files for the bbb Aug 04 10:55:02 mrpackethead: uhmm... page 6 of the datasheet tells you that there are push-pull versions as well, inverted and non-inverted Aug 04 10:55:16 of the lm26 Aug 04 10:55:23 ? Aug 04 10:55:33 yes Aug 04 10:55:40 yes, the datasheet says that Aug 04 10:55:47 but they dont' actually exisit Aug 04 10:56:24 not in single pieces from dk/farnel/... Aug 04 10:56:30 but you can order them from ti :) Aug 04 10:56:43 but i wonder why you used a thermostat chip in the first place Aug 04 10:57:05 wouldnt it be easier to use a temp sensor with an external comparator? Aug 04 10:57:51 there are plenty of band gap temp sensors out there, that dont need calibration for most use cases Aug 04 10:58:17 which makes them less specialized chip, thus easier to procure Aug 04 10:58:40 yes, but that also sounds like about at least 5 more parts Aug 04 10:58:49 board space is precious Aug 04 10:58:55 and each part costs $$$ to place Aug 04 10:59:08 oh.. it's your led thingies Aug 04 10:59:13 why didnt you call ti then? Aug 04 10:59:27 i'm sure you could have gotten a couple of pre-programmed lm26's Aug 04 10:59:30 becaue i dont' ahve four weeks Aug 04 10:59:32 :) Aug 04 10:59:36 oh Aug 04 10:59:38 well... Aug 04 10:59:58 its a safey cut out Aug 04 11:00:08 in case the fixture overheats Aug 04 11:00:13 i'm quite sure you could have gotten them faster, if you told them how many you need :) Aug 04 11:00:24 what i've learned. Aug 04 11:00:31 stick to stuff that is alrady on the shelf Aug 04 11:00:36 its always cheaper Aug 04 11:00:42 juup Aug 04 11:00:43 and its always quicker Aug 04 11:00:46 juup Aug 04 11:00:57 "specials" are just a source of fustration Aug 04 11:00:57 that's why i would have gone with the temp sensor + comparator Aug 04 11:01:27 even if it's more parts Aug 04 11:01:41 you can still optimize later, if it matters Aug 04 11:01:44 KotH: thats why you make 1 offs to go to space Aug 04 11:01:53 *g* Aug 04 11:01:59 and i make 10'000's to fill in space Aug 04 11:02:20 actually, for every piece that goes out into space, we build 10 of those Aug 04 11:02:36 2-5 with the final, space grade parts ^^' Aug 04 11:04:36 *space grade* Aug 04 11:04:41 what is space grade Aug 04 11:07:47 specially packaged (hermetically sealed metal can or ceramics), and rad hard quallified Aug 04 11:08:08 oh.. and it costs something between 100 and 10'000 more than the comercial/¨industrial part Aug 04 11:09:03 afaik there is also some pre-aging done, to get rid of the early dead Aug 04 11:09:34 you often have those also done to tighter specs than the commercial stuff Aug 04 11:12:34 um, sealed is kinda bad if it goes into space. pressure difference and all that Aug 04 11:13:21 afaik it's less about the pressure difference (you could make a breather hole, or have so little gas left that it doesnt matter), but more about outgasing Aug 04 11:15:11 ive always wondered, what if there was a bubble in the die housing or pc board. could it blow out once in the vaccume of space? Aug 04 11:15:36 depends on how much air is left and the strength of the package Aug 04 11:15:44 <_av500_> flufmnstr: yes Aug 04 11:15:56 <_av500_> also bubbles in solder Aug 04 11:16:01 <_av500_> thats already a concern for avionics Aug 04 11:16:11 given the fact that almost all micro sats use industrial or even commercial components, i guess, no it isnt a problem Aug 04 11:16:44 well i suppose its not incredably common to get a die or board with a bubble in it Aug 04 11:16:48 _av500_: that's a different failure case Aug 04 11:16:54 <_av500_> KotH: yes Aug 04 11:16:55 but i never though about the solder joints.... Aug 04 11:17:00 <_av500_> it was easily applied trivia :) Aug 04 11:17:03 :) Aug 04 11:17:15 flufmnstr: making a good pcb is not easy Aug 04 11:17:28 <_av500_> I interned at an avionics ocmpany during studies Aug 04 11:17:29 flufmnstr: and bubbles in the pcb are a reliability problem even for commercial stuff Aug 04 11:17:30 <_av500_> in QA Aug 04 11:17:35 <_av500_> hint: never fly airbus :) Aug 04 11:17:39 lol Aug 04 11:18:30 flufmnstr: btw: a die will never have a bubble in it :) Aug 04 11:18:43 <_av500_> unless its a pressure sensor := Aug 04 11:18:44 flufmnstr: though the die bond glue might Aug 04 11:18:46 <_av500_> ;) Aug 04 11:18:59 _av500_: not talking about mems here :) Aug 04 11:20:02 is there a way to tell how much power a usb device is using? (on the bbb) Aug 04 11:20:26 cde, you need a usb power meter Aug 04 11:20:55 rotfl Aug 04 11:20:57 Or a regular meter. Aug 04 11:20:58 http://www.ebay.com/bhp/usb-power-meter Aug 04 11:21:13 Take a USB lead. Cut the red lead. Wire a multimeter set to '10A' into it. Aug 04 11:21:25 SpeedEvil: so boring Aug 04 11:21:31 This will give you a rough idea. Aug 04 11:21:32 lets design something Aug 04 11:21:33 that makes sense. thx bro Aug 04 11:22:29 A better solution is a 1 ohm or so resistor in series - with a multimeter set to 2V - and then a 1M resistor in series with a 10uF cap, with both across the 1R resistor. Aug 04 11:23:05 You then connect the DMM across the cap - and you have an average reading current meter. Aug 04 11:23:57 An even better solution adds an opamp to amplify the resultant signal, so you can use a smaller shunt. Aug 04 11:24:09 hmm but wouldn't the amperemeter be more precise? not even sure I have a 1Ohm resistor qround Aug 04 11:24:12 And then you should look into using one of the integrating batery charge meters. Aug 04 11:24:30 cde: The ammeter has the iussue that it may behave very poorly for measuring time-varying DC Aug 04 11:24:38 <_av500_> even better: design the usb device, then you know exactly how much current it takes Aug 04 11:24:58 _av500_: it's for comparing wifi dongles Aug 04 11:25:13 It is - for most cheap meters - a rough guess - if the signal is not DC, or 60/50Hz AC Aug 04 11:25:22 cde: read the spec sheat Aug 04 11:25:39 I wish I had spec sheets Aug 04 11:25:41 cde: wireless devices have a very high peak power consumption Aug 04 11:25:49 cde: and you have to design for that Aug 04 11:25:51 Unless you have a 'true RMS' meter - which properly switches to average mode in current mode - it will typically be very inaccurate using a DMM. Aug 04 11:26:13 SpeedEvil: actually, in that case you need a peak meter Aug 04 11:26:13 lol. Aug 04 11:26:22 KotH: Well - it depends why. Aug 04 11:26:25 how about a data logger Aug 04 11:26:31 KotH: then maybe I could get by with a less juicy power supply, but adding a large capacitor to absorb the transient usb loads? Aug 04 11:26:34 sampling at 100k+ Aug 04 11:26:57 <_av500_> cde: yes, but thats patrented Aug 04 11:27:00 <_av500_> -r Aug 04 11:27:08 KotH: If you're using it for battery consumption info - you want an average meter. If you're working out sizing of a power supply for peak loads - peak reading. Aug 04 11:27:20 SpeedEvil: juup Aug 04 11:27:37 Regrettably in neither case do you want a cheap DMM Aug 04 11:27:50 thanks for the discussion, guys. this is being very helpful Aug 04 11:28:26 SpeedEvil: cheap DMMs are evil Aug 04 11:28:38 KotH: They are great - as long as you know their limits. Aug 04 11:28:46 even the expensive ones are just guestimeters anyways Aug 04 11:28:51 And to be fair - by 'cheap' here - I really mean 'non RMS' Aug 04 11:31:30 so the best course of action would be to evaluate current using both RMS and non RMS Aug 04 11:31:45 ^^' Aug 04 11:31:57 so the best course of action would be to evaluate current using both RMS and non RMS for constant load Aug 04 11:32:13 wait, that's the other way around Aug 04 11:32:23 non RMS for peak load Aug 04 11:32:30 er.. Aug 04 11:32:35 you want an RMS DMM Aug 04 11:32:45 which can do peak measurements as well Aug 04 11:33:42 though, probably for the peak measurements a osciloscope would be better Aug 04 11:33:50 then you know what kind of transients you have to expect Aug 04 11:34:00 <_av500_> KotH: you want that: http://www.home.agilent.com/en/pd-1000001611%3Aepsg%3Apro-pn-66309B/dual-mobile-communications-dc-source?&cc=DE&lc=ger Aug 04 11:35:06 oh.. Aug 04 11:35:09 nice thing Aug 04 11:35:12 have to get one of those! Aug 04 11:35:16 thanks av500 Aug 04 11:35:48 <_av500_> KotH: I got one for €150 :) Aug 04 11:35:50 <_av500_> years ago Aug 04 11:35:54 though, 2.5uA accuracy is a bit low :) Aug 04 11:36:03 schnöppchen! Aug 04 11:36:04 I'm using http://www.velleman.eu/products/view/?country=fr&lang=en&id=378982 but not sure it can do RMS Aug 04 11:36:10 These low current precision psu are in the surplus market all the time Aug 04 11:36:14 <_av500_> KotH: they guy had a whole bunch Aug 04 11:36:18 <_av500_> but its HEAVY Aug 04 11:36:21 <_av500_> and the car was far Aug 04 11:36:26 _av500_: do you use gpib ? Aug 04 11:36:27 <_av500_> I should have bought them all Aug 04 11:36:28 good gear is always heavy Aug 04 11:36:34 <_av500_> JFK911: no (t yet) Aug 04 11:36:39 oh i love gpib Aug 04 11:36:48 <_av500_> we have the sister model at work with rs232 Aug 04 11:36:58 ah OK that still works with labview/visa Aug 04 11:37:06 <_av500_> but this one is dual and extra DMM Aug 04 11:37:12 <_av500_> still looking for a cheap usb GPIB Aug 04 11:37:18 hp instruments usually have gpib and no rs232 Aug 04 11:37:30 there is a "beiming" usb one that emulates the agilent 82357 Aug 04 11:37:38 much better than prologix Aug 04 11:37:56 <_av500_> the 66311 has rs232, the 309 has GPIB Aug 04 11:37:59 they are $100usd. slightly more than you pay for a used NI PCI-GPIB Aug 04 11:38:07 _av500_: prologix? Aug 04 11:38:18 <_av500_> -> JFK911 Aug 04 11:38:18 _av500_: http://bmjd.biz/ Aug 04 11:38:21 fuck prologix Aug 04 11:38:25 do not buy that terd Aug 04 11:38:35 why? Aug 04 11:38:43 you'll have to rewrite all software because its a stupid rs232 gateway Aug 04 11:38:44 http://www.velleman.eu/news/?id=804 lol Aug 04 11:39:03 most people who wrote any gpib software expect one of the common api's like agilent or ni's Aug 04 11:39:25 <_av500_> JFK911: thx Aug 04 11:40:14 <_av500_> cde: its should say: for ALL devic like that Aug 04 11:41:14 <_av500_> JFK911: since I have neither HP nor NI SW most likely I will use some script for it Aug 04 11:41:52 <_av500_> KotH: the best thins is that it can sink current Aug 04 11:41:58 <_av500_> so it can emulate a LiIon Aug 04 11:42:17 _av500_: you should have really bought all of them Aug 04 11:42:18 well, the ni 488.2 api is very easy and i've written some apps in it using visual studio Aug 04 11:42:18 <_av500_> though it gets loud doing that :) Aug 04 11:42:23 <_av500_> KotH: yes :( Aug 04 11:42:27 _av500_: then i could buy one from you now :) Aug 04 11:42:27 there is also a linux implementation for the 82357 Aug 04 11:42:30 <_av500_> we bought a used one for work for $1500 Aug 04 11:48:31 _av500_: I have at least one of them always pluged in a socket near my bed... Aug 04 11:48:40 it does emit a faint buzzing sound Aug 04 11:48:56 not that specific model, mind you, but one from LG Aug 04 11:51:52 <_av500_> cheap stuff is cheap Aug 04 11:52:09 <_av500_> there a nice blog post about usb chargers Aug 04 11:53:19 * dm8tbr recently started playing with pololu 5V step-up/step-down regulators to provide stable 5V from e.g. li-ion Aug 04 11:53:24 quite nice stuff and tiny Aug 04 11:53:28 but gets damn hot Aug 04 11:54:15 <_av500_> https://plus.google.com/112266164281670850856/posts/Ue36uDuAoCH Aug 04 11:55:18 yeah, his posts were entertaining Aug 04 12:04:17 _av500_: "This post could not be found" :( Aug 04 12:07:25 <_av500_> http://www.righto.com/2012/03/inside-cheap-phone-charger-and-why-you.html Aug 04 12:07:37 <_av500_> sorry, was non public Aug 04 12:10:50 <_av500_> som eagle has no 1N4007.... Aug 04 12:10:53 <_av500_> so, Aug 04 12:22:17 diodes arent hard to make in eagle Aug 04 12:25:29 <_av500_> how is the counterpart to a cable shoe called? Aug 04 12:25:54 cable feet? :) Aug 04 12:26:03 <_av500_> soory Aug 04 12:26:07 <_av500_> to a flat cable plug Aug 04 12:26:09 usally "blade" Aug 04 12:26:25 <_av500_> https://www.tube-town.net/ttstore/product_info.php/info/p3325_Flat-Cable-Plug--Cable-Shoe-1---2-5-mm---tin-plated.html Aug 04 12:26:29 <_av500_> ah Aug 04 12:27:53 <_av500_> hmm Aug 04 12:29:40 <_av500_> http://www.dadaelectronics.eu/shop/printed-circuit-materials/4-8mm-faston-pcb-connector-pin Aug 04 12:29:43 <_av500_> this one Aug 04 12:30:54 <_av500_> faston Aug 04 12:35:46 faston is the most common name i can think of Aug 04 12:35:54 quick connect terminal, female Aug 04 12:36:01 the usual size is 6.3 mm Aug 04 12:36:55 <_av500_> yeah Aug 04 12:37:04 <_av500_> finding stuff in eagle libs is a hunting game Aug 04 12:37:42 <_av500_> since I need a schematic only, I can fake it Aug 04 12:40:22 does the BBB use RTS/CTS? it seems not Aug 04 12:40:59 couldn't that cause information loss when sending/receiving large amounts of data? Aug 04 12:54:45 <_av500_> no Aug 04 12:54:54 <_av500_> no flow control on the debug port Aug 04 12:55:07 <_av500_> you can of course use SW flow control Aug 04 13:13:24 cde: not really Aug 04 13:14:13 cde: rs232 is slow these days. unless you lower the cpu clock quite considerably, and have it doing a lot of other stuff, you will not lose bytes Aug 04 13:14:49 it's not the 80s anymore, you know :) Aug 04 13:15:46 and the uarts have fifos as well Aug 04 13:16:27 ive learned how to make symbols and footprints so its not really difficult\ Aug 04 13:18:11 <_av500_> JFK911: sure Aug 04 13:18:40 <_av500_> but I am lazy Aug 04 13:19:31 i have three methods Aug 04 13:19:38 1. footprint script for ic packages Aug 04 13:19:53 2. use that library converter tool that everyone distributes footprints for Aug 04 13:20:05 3. place pads from drawing Aug 04 13:25:37 <_av500_> good thing I do only hand wired tube stuff :) Aug 04 13:30:38 kfoltman: I had a problem some time ago, with a fairly recent ARM cpu, that would when I pasted stuff that was too long in a terminal window, drop bytes after a certain lenght Aug 04 13:30:48 I assume the internal fifo got too full Aug 04 13:30:48 i havent found any spice models for soviet tubes yet Aug 04 13:31:51 if you had spice models would they account for things like ac crosstalk from filament Aug 04 13:31:53 however the problem might also have been with the modified u-boot being used on that board Aug 04 13:33:36 cde: or the lack of buffering somewhere, obviously some flow control is useful sometimes Aug 04 13:39:24 so I plugged in 5V without noticing the miniusb cable was also plugged in :( Aug 04 13:41:02 fortunately it seems undamaged Aug 04 14:07:03 <_av500_> WTF missing junctions Aug 04 15:44:00 Hello, I would like reflash my beaglebone black to either Ubuntu or Debian but would like to keep the html files that include cloud9 and GateOne SSH. Is this possible? Aug 04 15:44:57 <_av500_> he files are nothing special Aug 04 15:45:03 <_av500_> they are on every angstrom install Aug 04 15:45:27 <_av500_> easy to extract and copy over Aug 04 15:46:07 Yeah where are the files located at? Thats kinda what I was thinking I could do. Aug 04 15:47:34 I did "find / -name html" with no good results - I assumed that angstrom was setup as a web server but I can't find the files at all. Aug 04 15:47:49 try find / -name *.html Aug 04 15:49:47 Hm..... looks like the files are in /var/lib/gateone and /var/lib/cloud9 Aug 04 15:50:13 and /usr/share/bone101 Aug 04 15:50:35 just curious, why do you want to switch to debian or ubuntu? Aug 04 15:51:42 I can't get sound over hdmi to work on angstrom and it works on debian loading off an SD card. Aug 04 15:52:18 I didn't know sound over hdmi worked on the bbb. thanks that's good to know Aug 04 15:52:45 I assume you are using the images provided by rcn? Aug 04 15:53:21 It did for me loading debian, I am using the images here - http://www.armhf.com/index.php/boards/beaglebone-black/ Aug 04 15:55:03 I wasn't expecting sound to work but was playing around with dosbox on debian and sound worked Aug 04 15:55:32 does the image support powervr opengl? Aug 04 15:56:04 I don't know, commander keen worked lol Aug 04 15:56:31 plus I compiled Dosbox for angstrom and it works fine Aug 04 18:07:29 I understand that the max current that can be source per port is 4mA or 6mA depending on the specific port, but what is the total current that ban be sourced by all ports? Aug 04 18:20:58 huh? what are you trying to do? Aug 04 18:22:54 bbbnoob: doesn't the datasheet provide the information? Aug 04 18:27:25 I need to know how to enable DSP running with BeagleBoard xM Angstrom linux Aug 04 18:27:44 bbbnoob: the TRM tells you the numbers Aug 04 18:28:17 bbbnoob: hint: if you really need >1mA out of an i/o port, use a driver ic or a transistor Aug 04 18:30:31 or an stm32 on usb ;) (only if you're near-suicidal) Aug 04 18:31:36 what's wrong with the stm32 approach? it should work :) Aug 04 18:31:44 KotH: what's wrong? usb ;) Aug 04 18:31:48 *g3 Aug 04 18:31:55 well... usb isnt that bad.... Aug 04 18:32:00 it's worse ;) Aug 04 18:32:36 you could sometimes use stm32 over SPI, that should leave you in relatively good health Aug 04 18:32:53 sometimes? Aug 04 18:33:03 as in, if data transfer rates aren't too high Aug 04 18:33:07 ah.. Aug 04 18:33:09 yeah Aug 04 18:33:12 should be enough for blinky leds anyway :P Aug 04 18:33:24 but usually, if you data rates are high, you are not using a cortex-m3 anyways :) Aug 04 18:33:33 your* Aug 04 18:33:39 right Aug 04 18:34:19 then again, we once did a project where we used an arm7 to implement an usb memory stick :) Aug 04 18:34:36 KotH: well, stm32 is good enough for data rates of at least 200 KB/sec when using usb Aug 04 18:34:44 you could perhaps abuse i2s, too Aug 04 18:35:22 hey, wait, spi should be able to do that much too Aug 04 18:35:28 juup Aug 04 18:36:00 you just have to route the signals correctly, and you can go up to >20MHz Aug 04 18:36:07 cool Aug 04 18:36:28 i think, highest i've ever done was 25MHz on spi Aug 04 18:36:29 ok, that *is* more than cortex m3 could process :) Aug 04 18:36:50 that was on an arm7, clocked at 48MHz Aug 04 18:37:04 i expect any cortex-m3 to do twice as much :) Aug 04 18:37:11 how about m4f@168MHz :) Aug 04 18:37:24 never had the chance to use it to its limits Aug 04 18:38:35 datasheet says, that it can do 37MHz on spi Aug 04 18:38:41 yum Aug 04 18:38:54 on each of the three spi ports :) Aug 04 18:39:12 probably not at the same time :) Aug 04 18:39:22 you could run out of bus bandwidth easily Aug 04 18:39:29 and the f405 has a parallel camera interface that can do 54MB/s Aug 04 18:40:12 spi ports are on apb which runs iirc at half ahb speed Aug 04 18:40:33 so you should be able to funnel 200MB/s trough there Aug 04 18:43:22 well, but you can't access memory via the same apb by three peripherals during the same bus cycle, can you? Aug 04 18:43:26 and now please think about the fact, that 13y ago, my first pc was running at 200MHz and used >100W Aug 04 18:44:06 my first pc was running at 8MHz, not sure about the power usage Aug 04 18:44:27 ok, my dad's :P Aug 04 18:44:32 sorry, 10MHz Aug 04 18:44:41 (PC/XT clone with "turbo" mode) Aug 04 18:44:45 hehe Aug 04 19:17:30 hi guys Aug 04 19:17:46 having a bit of a problem with a new beaglebone black i received today Aug 04 19:18:01 there's no HDMI output apart from the beaglebone logo in the top left on boot Aug 04 19:18:15 as far as I understand, after some time I should have some sort of login screen or desktop there Aug 04 19:18:26 is there something I can do about that? Aug 04 19:18:34 i've tried two different displays Aug 04 19:18:51 and both of them went black after a while after showing the beaglebone logo Aug 04 19:19:09 pressing buttons on a usb keyboard doesn't do the trick Aug 04 19:20:12 farhaven: it's the screen saver. try plugging a different keyboard or a mouse Aug 04 19:20:47 Hello everyone.... I have a question about using different compilers Aug 04 19:21:20 Can I use arm-linux-gnueabi on a BBB with angstrom or do I have to use the arm-angstrom-gnueabi? Aug 04 19:21:55 cde: oh, that's weird Aug 04 19:22:03 i just plugged in a mouse in the place of the keyboard Aug 04 19:22:08 but the mouse does not light up Aug 04 19:22:23 fwiw, the beaglebone is powered from my laptops USB port Aug 04 19:22:26 could that be the issue? Aug 04 19:23:08 I have some problems with a application using opencv, I get some strange compiler errors and I was asked to check if it works with arm-linux-gnueabi. Do I have to recompile the opencv library that is pre-installed on the BB using arm-linux-gnueabi in that case? Aug 04 19:24:30 cde: no dice Aug 04 19:24:35 the display stays off Aug 04 19:24:43 is there a way i can force the screensaver to never turn on? Aug 04 19:25:37 KotH: BTW, I've just got my basic M4F SPI code to somewhat work (I'm using it to get samples from the MCP3208 analog/digital converter) - only I need to change it from polling-based to DMA-based - as in, sending a buffer of [0x18, 0, 0, 0x19, 0, 0, 0x1A, 0, 0, ...] and receiving a buffer of samples via DMA :) Aug 04 19:26:32 kfoltman: arent there already a dozen implementations for that? Aug 04 19:26:48 KotH: since when is that a reason to not write my own ;) Aug 04 19:27:10 based on STM peripheral libs of course Aug 04 19:27:39 *g* Aug 04 19:27:44 code on! :) Aug 04 19:33:07 farhaven: I would recommend sticking a serial cable and having a look at the output Aug 04 19:33:25 you mean the dmesg? Aug 04 19:33:37 is there some guide on "this message is okay, this one isnt Aug 04 19:33:38 " Aug 04 19:33:40 for that? Aug 04 19:33:44 well u-boot, kernel, and the rest Aug 04 19:33:55 hmm, okay Aug 04 19:34:02 so this isn't common i guess Aug 04 19:34:16 farhaven: most things that say "warning", "error" or "failed" are bad, everything else shouold be ok Aug 04 19:34:52 also, try turning it off and on again Aug 04 19:35:02 hehe, i've been doing that all day Aug 04 19:36:10 i guess uboot is fine though, i guess Aug 04 19:36:15 since it's showing the beaglebone logo Aug 04 19:37:47 [ 40.894243] [drm:drm_ioctl], pid=234, cmd=0xc01864b1, nr=0xb1, dev 0xe200, auth=1 Aug 04 19:37:50 [ 40.894289] [drm:drm_ioctl], ret = -38 Aug 04 19:37:53 is what's there Aug 04 19:37:57 lots of those Aug 04 19:38:02 and [ 40.907985] [drm:output_poll_execute], [CONNECTOR:5:HDMI-A-1] status updated from 1 to 1 Aug 04 19:38:07 looks fine i guess Aug 04 19:38:19 maybe try to use a USB hub Aug 04 19:39:26 i've tried a dedicated USB power supply Aug 04 19:39:31 rated at 1 amp Aug 04 19:39:42 but yeah, i'll try to get my hands on one of those Aug 04 19:43:09 [ 0.412131] bone-capemgr bone_capemgr.8: slot #6: BB-BONELT-HDMIN conflict P8.45 (#5:BB-BONELT-HDMI) Aug 04 19:43:12 there's this Aug 04 19:43:15 [ 0.421751] bone-capemgr bone_capemgr.8: slot #6: Failed verification Aug 04 19:43:17 [ 0.428523] bone-capemgr bone_capemgr.8: loader: failed to load slot-6 BB-BONELT-HDMIN:00A0 (prio 2) Aug 04 19:43:22 doesn't look too good, does it? Aug 04 19:57:24 that shouldn't be the issue Aug 04 19:57:31 hmm Aug 04 19:57:45 i just ran the parse-edid tool on the hdmi edid Aug 04 19:57:55 it reports my screen as 1366x768 Aug 04 19:58:01 so i guess that's working fine Aug 04 19:58:21 could the resoultion be an issue? Aug 04 19:58:38 can you try to list the usb devices? with lsusb Aug 04 19:58:51 if you unplug and replug the keyboard, that should appear in dmesg as well Aug 04 19:58:52 there's only two root hubs Aug 04 19:59:00 that's weird Aug 04 20:00:27 thanks for the pointers Aug 04 20:00:38 np bro Aug 04 20:03:43 okay, so i got my mouse attached and recognized now Aug 04 20:03:52 but the screen won't turn on when moving it or clicking its buttons Aug 04 20:05:19 for the record, i now have ethernet plugged in to access the beaglebone Aug 04 20:07:22 aaah Aug 04 20:07:25 it's working! Aug 04 20:07:29 thanks a lot for your help :) Aug 04 20:08:11 ping ping Aug 04 20:10:07 <_av500_> pung pong Aug 04 20:12:59 _av500_, all good ? Aug 04 20:14:08 D’oh! “My cape also uses the UART5 signals. Probably a bad idea given that TX/RX and CTS/RTS for that port are all used in the boot config.... ARGH... I unplugged the serial cable on UART5, did a hard power cycle and it boots with 24MHz and the TSC works now.” https://groups.google.com/forum/#!topic/beagleboard/MdxR1fDFPsU /me goes and moves his stuff to another UART. Aug 04 20:21:29 farhaven: so what was the trick? just curious Aug 04 20:21:40 my power supply was a bit sucky it seems Aug 04 20:21:59 didn't have enough juice for the keyboard and mouse i'm using Aug 04 20:22:18 that happened to someone I know, but with a raspberry pi. his no-name brand supply didn't actually provide the rated 2S Aug 04 20:22:22 *2A Aug 04 20:22:46 yeah, i don't think mine is not giving me the full ampere either Aug 04 20:30:41 turning off the screen right at boot is really confusing though Aug 04 20:37:57 That fixed the clock issue. Aug 04 20:38:34 jkridner: ↑ Aug 04 20:59:00 I have used this guide to flash the eMMC with 13.04. When I try to log into the BBB I get "Permission denied". Is the user/password ubuntu/temppwd like the guide says? Anyone else used this guide? Aug 04 20:59:02 Has anyone got pps-gpio to work with a Beagle Bone? Aug 04 20:59:13 Here is the link http://circuitco.com/support/index.php?title=Ubuntu_On_BeagleBone_Black Aug 04 21:00:47 * ion looks at /lib/firmware/BB-BONE-RTC-00A0.dtbo, this might be helpful. Aug 04 21:01:33 ion: i have Aug 04 21:01:55 not sure if koen applied my pps pinctrl patch though Aug 04 21:38:12 arr Aug 04 21:44:43 I made a case for my BBB Aug 04 21:45:17 it's a bit old fashioned and a tad too large but it fits the decor and accessories go nicely in the case Aug 04 21:45:28 http://photos.smugmug.com/photos/i-cxqx6TK/0/XL/i-cxqx6TK-XL.jpg Aug 04 21:46:28 cool but needs better wire management Aug 04 21:46:58 yea I need to tie them down better Aug 04 21:48:14 but now sleep Aug 04 21:52:25 mranostay: Yay, it seems to work with https://gist.github.com/ion1/6152104 Aug 04 22:04:19 ion :) Aug 04 22:08:44 hmm koen didn't apply my gps overlay Aug 04 22:12:46 Now if only debian’s ntp package had clock type 22 support. Aug 04 23:18:18 Hi everyone. My beaglebone doesn't seem to have drivers for my USB keyboard or wireless USB adapter. They work fine on my RPi. Any ideas where to begin looking for an answer? Aug 04 23:18:42 The devices show up in lsusb. I'mm using Angstrom Linux. Aug 04 23:28:57 Somebody quick; sell me on the BBB for a project! Aug 04 23:29:21 I'm tempted to chose it over the RPi Aug 04 23:30:35 I'll be including a GSM/GPRS modem module, at least one webcam and need to read analog sensors and multiple PWMs Aug 04 23:31:03 and well willing to use external serial chips for that if need be Aug 04 23:31:29 output multiple PWMs, not read. Aug 04 23:35:00 canid: BBB is faster, and has way more IO Aug 04 23:35:25 RPi only has 8 digital IO lines Aug 04 23:35:49 If you want to read analog, you need to use an AD converter Aug 04 23:36:05 BBB has 8 channels of 12 bit AD built in Aug 04 23:40:06 and 12 bit is plenty. the ADC peripherals are a selling point Aug 04 23:41:21 I beleive I understand there are two SPI but one is used by the HDMI by default. Aug 04 23:42:28 I'm on the fence about a usb GRPS/mobile broadband dongle vs a uart GSM/GPRS dongle which looks like it might be less supported but more capable Aug 04 23:42:34 any idea why this document says I have to press the boot switch if want to boot from sdcard? I do not press anything and BBB still boots from the sdcard... Aug 04 23:42:39 am I missing something? Aug 04 23:42:46 *UART module Aug 04 23:43:50 I do know that a couple USB mobile dongles are supported under raspbian. I haven't yet found much for BBB Aug 04 23:45:56 those things usually look like serial modems Aug 04 23:50:00 so the usb ones are likely to appear as a USB ttl serial bridge, yes? Aug 04 23:50:43 my requirements are to at least recieve SMS, compose SMS and MMS Aug 04 23:51:00 and at best, maybe also proccess tones over voice Aug 04 23:54:25 data and sms are usually done as AT commands Aug 04 23:54:33 or were last I looked at anything of the sort Aug 04 23:54:38 which is admittedly not recently Aug 04 23:54:47 about as I supposed Aug 04 23:55:13 I'll be getting two BBBs and modules hopefully within the week Aug 04 23:55:38 and then you run something like pppd like you would with an old dialup connection Aug 04 23:58:58 I'm in that stir-crazy stage of waiting til I can get my hands on the hardware and trying to do as much reading up front as I may Aug 04 23:59:30 Can't even make my head get into any other projects at the moment Aug 05 00:04:12 You can't reliably use DTMF over voice. Aug 05 00:04:34 You need to use the DTMF 'voice' AT commands for reliable recognition Aug 05 00:04:45 Thanks. Aug 05 00:04:50 As they use out-of-band signalling. Aug 05 00:05:14 Voice support on dongles may be minimal, or nonexistant. Aug 05 00:05:29 isn't there a special bearer you can request to let you in band DTMF? Aug 05 00:05:58 I've not looked into it recently. Aug 05 00:06:11 Some providers data SIMs don't even provision voice Aug 05 00:06:20 seem to recall it was an ancient thing mainly used for FAX/Modem over GSM Aug 05 00:06:42 where? Aug 05 00:06:50 in europe? Aug 05 00:06:56 That's probably CSD - call switched data - you're thinking of. Aug 05 00:07:04 I had one - vodafone? I forget Aug 05 00:07:17 CSD sounds about right Aug 05 00:07:22 oh.. .wish TMO would do that Aug 05 00:07:34 $0.50/min kind of sucks for butt dialing Aug 05 00:07:41 CSD was wierd. 9600 baud - an extended training sequence. Aug 05 00:08:03 And point-point of course. Aug 05 00:08:11 Advantage was really low latency Aug 05 00:08:21 Damn near ideal for encrypted voice Aug 05 00:08:37 but it was $$$$$, IIRC Aug 05 00:08:48 Disadvantage is that even 5 years ago it was hard to get some carriers to support it. Aug 05 00:09:08 As they diddn't know what it was, and it required getting an unusually technical operative with a clue Aug 05 00:09:14 To flip the switch on your account. Aug 05 00:09:50 like any other odd ball services, you either need to request it with the magic codes or use terms like 'fax' Aug 05 00:10:18 IIRC fax was a seperate - but related - seervice Aug 05 00:10:44 * mru wants telex support Aug 05 00:10:48 That used an actual 'modem' at the mobile provider - to talk to the real world. Aug 05 00:11:08 The connection to your handset was digital over a wierd protocol Aug 05 00:11:18 I've been learning the get standard service providers to put you on the phone wtih their technicians/engineers skill a little bit lately Aug 05 00:11:38 That dance is always fun Aug 05 00:12:15 It can be depressing to try to explain your problem to someone in india that's never actually used a similar service. Aug 05 00:12:45 Though to be fair - many 'third world' call centre operatives are more sane than the ones in the UK. Aug 05 00:13:27 It's more depressing to call up the provider who rents your client their light tower to get them to give you the number for the technician they use from the vendor Aug 05 00:13:50 to have to call him up out of the blue and ask him abour some component Aug 05 00:14:12 when he knows you're not supposed to be working on it, but you and he both know his company doesn't want to fix it themselves Aug 05 00:15:02 I'd bet there's some of that in every industry Aug 05 00:17:17 yeahyeah Aug 05 00:19:45 I can't believe they let me be a controls technician Aug 05 00:22:34 I took 2 hours to learn FBD for Siemens LOGO! PLCs and my first program in in a big drier tower compressor/vacuum system Aug 05 00:22:59 I know I'd be shooting myself in the foot to explain that anybody with a couple hours to spare could do that. Aug 05 01:25:55 I registered a project on BeagleBoard.org, but somehow I can no longer edit it? Aug 05 02:28:30 szhao: log in at the bottom of the project page, once you're logged in go to your project page, below the 'Last updated on' part there will be an 'Edit' link **** ENDING LOGGING AT Mon Aug 05 02:59:58 2013