**** BEGIN LOGGING AT Sat Apr 14 03:00:01 2018 Apr 14 03:24:04 uhh, I'm not sure what you're talking about... the motor driver doesn't have any outputs you'd connect to the beaglebone, only inputs Apr 14 03:24:41 and they're clearly designed to accept 3.3v logic (V_IH(min) = 2.3V) Apr 14 03:24:59 Oh. Apr 14 03:25:25 Okay. I was mistaken. Apr 14 12:48:55 Hi Apr 14 12:49:09 Can I ask a question regarding TinyALSA? Apr 14 12:49:36 As #alsa is pretty dead Apr 14 12:49:59 I am wondering if you need two pcm handles for input and output, or if you can use one for both Apr 14 12:50:26 As setting the flag PCM_IN | PCM_OUT equals PCM_IN, so it doesn't know if it also needs output Apr 14 15:46:49 ugh I get frustrated when people do that sort of thing/ Apr 14 15:47:02 Hello. Apr 14 15:47:33 Are there any people in here following along in Ch. 5 of "BeagleBone Robotic Projects?" Apr 14 15:47:54 The book was produced by Packtpub. Apr 14 16:08:07 The book was produced in 2013 and the author's name is Grimmett. Apr 14 16:33:38 Motor Controller up and running. Flash of light, check. boy! Apr 14 18:00:30 Hmmm you going to the robogames this year? Apr 14 18:01:15 There should be a new OSMC 3.6 viewable by Chris Baron. I know you don't mess with > 2KW motors but just in case. Apr 14 18:10:46 Okay. Apr 14 18:10:57 Thank you but nope. No robowars this year. Apr 14 18:11:09 Maybe as a visitor but not a competitor. Apr 14 18:13:17 I just plugged up everything and I am going to run the software soon. Apr 14 18:15:40 Right let me clear the blow out wall first. Apr 14 18:15:48 ... Apr 14 18:15:52 Not a thing yet. Apr 14 18:16:06 I think the software works but the hook-up is bogus. Apr 14 18:16:32 So you have a fake wiring setup? Apr 14 18:16:45 No...it is just not "cool" enough to make sense. Apr 14 18:16:57 Should I plug the Battery in 5v or Vcc? Apr 14 18:17:21 I plugged it into the Vcc +. Dang it. Apr 14 18:19:04 That's one of those things you check several times first. There should be some "power goes in here" labels no? :D Apr 14 18:19:12 <<<<<< on break while I read up on this device again Apr 14 18:19:21 One says 5v and one is Vcc. Apr 14 18:19:36 I thought I plugged it in the Vcc since I am using 12v. Apr 14 18:19:54 I have a site you can view if necessary. Apr 14 18:20:20 http://www.st.com/content/st_com/en/products/motor-drivers/brushed-dc-motor-drivers/l298.html Apr 14 18:20:24 L298! Apr 14 18:20:27 brb Apr 14 18:28:37 You have it hooked up like in figure 6? erstwhile I have not accomplished much on my pocket beagle variant. Apr 14 18:30:20 figure 6 in the datasheet? Apr 14 18:30:53 I have things hooked up from P9.22/24 to ln1/ln4. Apr 14 18:31:23 I was trying to use GPIO, then pwm, and then Uart. Apr 14 18:31:43 The software was running okay but the motors were not engaging. Apr 14 18:33:12 I tried P9.14/16 too. Apr 14 18:34:29 GenTooMan: I see you have been "slacking" on your Pocket Beagle stuff recently. Are taxes really that stressful right now? Apr 14 18:35:29 The datasheet is not downloading right now for me. Apr 14 18:35:31 Boo! Apr 14 18:43:41 Okay... Apr 14 18:43:45 I got the datasheet. Apr 14 18:43:49 I am reading it now. Apr 14 18:45:11 Basically. I have one lead going to the L298 at ln4 and another at ln1. Apr 14 18:45:17 i.e. that is from the BBB. Apr 14 18:52:07 my software is probably too simple. I will revert back to the software. Apr 14 18:53:36 GenTooMan: What type of connection would you use on this device, e.g. UART, PWM, or GPIO? Apr 14 21:31:14 <<<< still messing w/ the L298 Apr 14 21:48:52 Which device? If you look at the data sheet figure 6 you have 2 power values Vs and Vss Vss is 5V power and Vs is 12V power be sure not to switch them or poof could happen to the IC do you have the power SO24 or the Wide TO220? Apr 14 21:49:11 12v Apr 14 21:49:18 I am using 12v. Apr 14 21:49:24 W/ the Vss. Apr 14 21:49:43 Sorry. It is Vcc on my L298. Apr 14 21:49:56 I am using Vcc w/ a 12v battery. Apr 14 21:49:59 As I should. Apr 14 21:52:26 I have a odd rendition of the board from openElectronics. Apr 14 21:52:55 It is an openSource board w/ a different approach to the items. Apr 14 21:53:48 ... Apr 14 21:54:08 There are some jumpers on the board that make me think I can alter the connections. Apr 14 21:54:28 I just do not get any recommendations from local sources (online). Apr 14 21:56:18 GenTooMan: Do not worry about it. I will contact the mfg. I am sure they know how to handle this odd jumpers on the board. Apr 14 23:47:53 Anyhow I suggest use of the enable pin for PWM and A / B to control direction and other fun things. Apr 15 00:11:42 is anyone working on bbb hw dev, i.e. multicore, more ram? Apr 15 00:21:00 there is a bbb variant with more ram Apr 15 00:22:04 replacing the AM335x SoC by a different one would basically just mean designing a completely new board, it wouldn't be a beaglebone anymore Apr 15 00:22:36 and there is of course a bigger faster multicore sibling already, the beagleboard-x15 Apr 15 00:24:55 the beaglebone enhanced has 1GB ram, gigabit ethernet, and wifi: http://www.sancloud.co.uk/?page_id=1028&model_number=BBE-WiFi Apr 15 01:05:13 cool. i thought the x15 was a very old proto board Apr 15 01:05:20 huh? Apr 15 01:05:30 wasn't that the original beagleboard? Apr 15 01:05:42 no, the original beagleboard was the original beagleboard Apr 15 01:05:47 called "beagleboard" Apr 15 01:05:48 :P Apr 15 01:05:53 xM Apr 15 01:06:01 i confused xM with x15 maybe Apr 15 01:06:04 xSomething Apr 15 01:06:54 both it and the xM are omap3-based, i.e. cortex-a8 like the beaglebone (although the AM335x that's on the beaglebone is much newer than the omap3) Apr 15 01:07:21 bummer because i like the bb architecture and open source nature, but it seems the raspberries have got moore's law on their side Apr 15 01:07:46 the x15 is dual-core cortex-a15 + DSP + two pruss instances + two dual-core cortex-M4 subsystems + a ton of stuff Apr 15 01:08:02 thanks for the tip on bbe, might use that for wifi purposes Apr 15 01:09:18 the beagleboard-x15 is an entirely different class of machine than the raspberry pi Apr 15 01:09:35 I'm not hugely happy with their choice of wifi chipset though... there's a mainline driver that is really feature-limited (e.g. no way to have simultaneous AP and client), and a non-mainline driver that did have features but fairly quickly resulted in a kernel panic for me Apr 15 01:10:41 rpi is in the "cheap mediocre board with poorly documented hardware" category, similar to the many flavors of allwinner boards :P Apr 15 01:12:28 oh right, the AM572x has two C66x DSPs, not just one Apr 15 01:13:00 4 cpu cores, IIRC Apr 15 01:13:27 a lot more, depending on what you count as "cpu core" Apr 15 01:14:13 the formfactor of it tho, no capes Apr 15 01:14:28 2x cortex-a15, 2x c66x dsp, 4x cortex-m4, 4x pru Apr 15 01:14:37 cores Apr 15 01:15:47 well, expansion boards like capes are not a problem... but hooking up some external stuff with wires is just impossible, and that sucks Apr 15 01:16:11 x15 is not cheap tho Apr 15 01:17:52 i was looking for "more power, lower price" evolution, i.e. moore's law. Apr 15 01:20:57 well for beagleboard it's obviously also dependent on the SoCs TI creates, and since they're not targeting consumer electronics anymore (like they were with the OMAP) it's probably not that urgent to have the latest and greatest ARM cores Apr 15 01:21:18 they'll care more about things like reliability Apr 15 01:23:13 and while the AM572x (or especially its automotive siblings the DRA7xx and TDA2xx) do target computationally expensive machine-vision applications, that's handled by DSPs and EVEs (Embedded Vision Engine, not available on the x15 unfortunately) rather than the ARM cortex-A cores Apr 15 01:27:48 and I think the low cost of the raspberries mostly has to do with high-volume production Apr 15 01:37:34 GenTooMan: I have been using the jumpers and changing their format. I have been unsuccessful so far. Apr 15 01:37:40 ...I will keep you updated. Apr 15 01:48:08 keystone cores are big little correct? Apr 15 01:53:31 GenTooMan: ? Apr 15 01:54:06 GenTooMan: keystone SoCs are multi-core C66x DSP, optionally with some ARM cortex-A cores Apr 15 01:54:27 cortex-A15 in case of keystone II **** ENDING LOGGING AT Sun Apr 15 03:00:00 2018