**** BEGIN LOGGING AT Fri Sep 16 02:59:59 2016 Sep 16 03:56:04 i hope this isn't too off-topic. i couldn't find a populated group specific to it. Sep 16 03:56:55 does gplv3 basically require to you provide your souce if you statically link, but not if you dynamically link? Sep 16 03:57:59 at least for the gplv2 I think this is a contested question, dunno about the gplv3 Sep 16 03:59:23 but iirc dynamic vs static linking shouldn't matter... it ought not to anyway Sep 16 04:00:36 hmm. Sep 16 04:00:40 i hate legalese.. Sep 16 04:06:12 if i'm basing a product on a bbb running debian (e.g.), do i have to worry about licensing for everything installed (including the kernel), even if the application doesn't link statically or dynamically to any licensed code? Sep 16 04:06:31 that was poorly stated, but i hope you get the gist Sep 16 04:13:49 yes Sep 16 04:14:19 the terms are about redistribution of the GPLed code, even if completely unmodified Sep 16 04:15:38 e.g. you need to make the source code of the kernel available to your customers (in one of the ways explained in the GPL) Sep 16 04:16:45 ok, thanks zmatt. but would we have to make our product's application source code available too? Sep 16 04:18:22 the function in question is mounting a smb/cifs filesystem via the kernel. if our product requires this for its functionality, would we have to disclose our source code? Sep 16 04:18:45 sorry if this is a stupid question.. Sep 16 04:19:31 i know, you're not a lawyer, right? Sep 16 05:17:54 it will very much likely link to the system libraries at least. Sep 16 05:18:03 like the C runtime. Sep 16 06:52:37 Hi, I'm kailash nagarajan a sophomore from amrita university studying mechanical engineering with a great interest in control engineering and robotics,I'm ready to contribute to Beaglebone in any way i can. I've a few queries regarding contributing Sep 16 06:54:41 * phschafft waves to kailash. Sep 16 06:55:59 waves. I'm really interested to work with some interfacing. Can i know some projects that i can take over and try contribuiting to Sep 16 06:56:47 I'm just a visitor myself. I think the others aren't awake yet. Sep 16 06:57:06 Okay thank you :) Sep 16 07:16:33 Is any one there? Sep 16 07:18:11 Can someone actually help me with getting to know about the projects that i can contribute to Sep 16 07:45:12 kailashn: 1) use the BBB Sep 16 07:45:19 kailashn: 2) find something you are interested in Sep 16 07:45:22 kailashn: 3) work on it Sep 16 07:45:27 kailashn: 4) ... Sep 16 07:45:31 kailashn: 5) contribute Sep 16 08:24:53 yay, "Division by zero in kernel" Sep 16 08:25:27 zmatt++ Sep 16 08:25:37 I wonder how many centuries ago anyone has last tested using mcasp in S/PDIF mode Sep 16 08:26:02 *hihi* Sep 16 08:42:45 Hi everyone Sep 16 08:44:21 * phschafft waves. Sep 16 08:44:44 does anybody know if lt is possible to use CAN communication with beaglebone black programming with Simulink ?? Sep 16 08:53:25 Hi, i've a question about the different versions of BB's. WHich has the best temp specs? Sep 16 08:53:48 it looks like the BB black IND from E14 Sep 16 08:56:28 Guest40978: what is your usecase? Sep 16 16:44:55 Hi People Sep 16 16:52:34 zmatt: I think I have a strange affinity for optoelectronics. my first project in school was a pulse oximeter. Sep 16 16:52:44 thats why i like optocouplers Sep 16 17:35:47 anyone connected? Sep 16 17:37:52 just us church lice Sep 16 18:52:38 getting another engineering student started on a beagle bone black today... Sep 16 19:27:52 ohh, nice specimen of a line with mediocre impedance matching along the way https://gerbil.xs4all.nl/2016-09-16-202258.png Sep 16 19:29:01 (the zoom-in is one bit per major division, 0111001001) Sep 16 19:30:44 That's all the noise? Sep 16 19:30:53 ? Sep 16 19:32:15 On the bottom zoom there's lots of noise. It's also not square, but I don't know the source signal. I was asking if you know about impedance because of the noise. Sep 16 19:32:45 Or because the source is a square wave and this isn't. Or something else. Sep 16 19:33:05 this tiny amount of noise is completely negligible and only visible because I used the subtract function of the scope (to measure differentially) Sep 16 19:33:13 the output signal is however square Sep 16 19:33:15 That was my other thought. Sep 16 19:33:20 Ah. Roit. Sep 16 19:33:54 Thanks! Sep 16 19:34:14 the step going from 4V differential to 6V is the first reflection from the end of the line: the measurement was taken close to the driver Sep 16 19:34:41 eh, 2V to 3V I mean, I think Sep 16 19:34:52 yeah Sep 16 19:35:03 Ah. That's cool. In case it's not patently obvious I don't work at this level a lot. (grin) Sep 16 19:37:12 this is *with* a terminator at the end of the cable, but the cable is not a proper one but just some random microphone cable because people are lazy and it has the right plugs at the end (XLR) Sep 16 19:40:03 https://gerbil.xs4all.nl/2016-09-16-203706.png without terminator, for comparison ;) vertical scale has been changed from 1V/div to 2V/div to allow the large overshoots to be captured Sep 16 19:41:14 Woah. Sep 16 19:43:14 I think an RS485 transceiver *might* still be able to decode that correctly, but it would be very marginal Sep 16 20:15:28 https://gerbil.xs4all.nl/aes3/ there, made a nice set of it Sep 16 20:16:54 running at twice the bitrate at first actually looks like a cleaner signal :) Sep 16 20:17:50 Looks neat. No clean ones though. (grin) Sep 16 20:21:16 https://gerbil.xs4all.nl/aes3/y-96k-u.png several of the 1 bits are very very marginal there Sep 16 20:22:00 (note that all x-* pics are the same bit sequence and ditto for all y-* pics) Sep 16 20:23:01 and yeah no genuinly clean ones, but I doubt you're going to get any with a setup like this Sep 16 20:24:47 Kinda what I was getting at. Can't get clean ones. Sep 16 20:25:28 though all the terminated ones are loud and clear, plenty of margin Sep 16 20:27:05 sure the tops wobble a bit, but that all happens far in the logic high or far in the logic low regions, with clean transitions inbetween Sep 16 22:00:50 really, the longer I look at the mcasp driver, the more I'm amazed that it even works *at all* right now Sep 16 22:58:41 Are images for BBB 2GB eMMC still released? On download list I see old images... Sep 17 02:36:25 hi, anyone there? Sep 17 02:37:29 >??? Sep 17 02:42:43 anyone here? Sep 17 02:53:34 hello? **** ENDING LOGGING AT Sat Sep 17 02:59:58 2016