**** BEGIN LOGGING AT Sat Dec 28 02:59:57 2019
Dec 28 03:06:40 <set_> MBC and servo to the rescue!
Dec 28 03:09:26 <set_> Sorry for the flooding of me declaring things. I am stopping now.
Dec 28 03:30:12 <set_> I am looking at some trapezoidal and S-curve profiles right now. Does anyone know how to put continuous form into .py files?
Dec 28 03:31:32 <set_> I guess I should use the dicrete time form instead and not the continuous form.
Dec 28 03:31:49 <set_> Sheesh. Who knew servos were complicated. Sheesh.
Dec 28 03:34:33 <set_> So, go w/ the S-Curve and discrete time form. Yea boy!
Dec 28 03:36:59 <set_> Dang it. I just read the Parabolic profiles are around too. Blah.
Dec 28 03:39:22 <set_> https://pastebin.com/29y1N7Kh is the answer but not in programming language. Does anyone here use servos for fun?
Dec 28 03:42:57 <set_> https://pastebin.com/SpyKKvmG is better for configuring servos and the source behind them and it can be found at https://www.pmdcorp.com/resources/type/articles/get/mathematics-of-motion-control-profiles-article.
Dec 28 12:21:11 <kremlin> m
Dec 28 22:41:04 <set_> 18W USB-C power adapter would work or not for the AI for powering the AI device?
Dec 28 22:43:37 <set_> Forget it. 5v and 3A are not 18w.
Dec 28 22:48:16 <veremitz> newp
Dec 28 22:48:44 <set_> veremitz: What is that three pin connector called for debugging?
Dec 28 22:48:57 <veremitz> erm..
Dec 28 22:48:59 <set_> Or does the schematic have it?
Dec 28 22:49:13 <veremitz> 'debug header' ?!
Dec 28 22:49:19 <set_> Oh and AI...
Dec 28 22:49:20 <veremitz> should have
Dec 28 22:49:35 <set_> There is a three pin serial debug connector.
Dec 28 22:49:50 <set_> For some reason, they sold me the A1. So, that is what I have now.
Dec 28 22:50:05 <veremitz> I'm gonna call it 'Bill'.
Dec 28 22:50:10 <set_> Bill!
Dec 28 22:50:45 <set_> I figured three pin serial debug would come up but notta. Off to search more.
Dec 28 22:52:13 <veremitz> https://github.com/beagleboard/beaglebone-ai/wiki/System-Reference-Manual#connecting-a-3-pin-serial-debug-cable <= that one?
Dec 28 22:52:51 <set_> Yes sir!
Dec 28 22:53:30 <set_> three pin is okay I guess but is there a searchable name?
Dec 28 22:53:40 <veremitz> hmm seems to connect to UART1
Dec 28 22:54:57 <veremitz> I can't seem to find the schematics at a quick glance
Dec 28 22:55:11 <veremitz> its one of potentially  afew different types/manufacturers
Dec 28 22:55:55 <veremitz> start with the pin spacing, and go from there :D
Dec 28 22:56:08 <set_> Okay. no issue. Right!
Dec 28 22:56:18 <set_> Off to look it up.
Dec 28 22:56:57 <veremitz> should be in either the Schematic or BOM.
Dec 28 22:59:43 <set_> Okay. I will go to the github page. Who knows?
Dec 28 23:02:41 <veremitz> aHA!
Dec 28 23:02:54 <veremitz> ok so the schematics are in the github repo indeed .. p18 has debug on it ..
Dec 28 23:03:14 <veremitz> I -think- by the part code, it's Likely to be a jst part
Dec 28 23:04:14 <veremitz> https://www.digikey.co.uk/product-detail/en/jst-sales-america-inc/B3B-ZR-LF-SN/455-1658-ND/926565 Bingo!
Dec 28 23:04:46 <veremitz> 1.5mm pitch
Dec 28 23:06:20 <set_> Nice!
Dec 28 23:06:30 <set_> I found this: SN74LVC2G241DCUT.
Dec 28 23:06:38 <set_> Oh?
Dec 28 23:06:42 <set_> Okay. Digikey. got it.
Dec 28 23:07:21 <veremitz> AHA you can get pre-crimped leads .. Great!
Dec 28 23:07:43 <veremitz> so .. you need a housing, thus: https://www.digikey.co.uk/product-detail/en/jst-sales-america-inc/ZHR-3/455-1160-ND/608602
Dec 28 23:07:58 <set_> What?
Dec 28 23:08:08 <set_> I have a crimper but the damn thing might not go that small.
Dec 28 23:08:23 <veremitz> and a few of these .. https://www.digikey.co.uk/product-detail/en/jst-sales-america-inc/ASZHSZH28K152/455-3079-ND/6009455
Dec 28 23:08:34 <set_> That is uk.
Dec 28 23:08:38 <set_> No UK.
Dec 28 23:09:21 <veremitz> https://www.digikey.com/products/en?keywords=%20ASZHSZH28K152 USA :D magic
Dec 28 23:09:30 <set_> Off to look online a digikey. Thank you veremitz. Dang man, you are too quick.
Dec 28 23:09:44 <veremitz> in point of fact, they always ship out of .. err . I wanna say Mountain View ..
Dec 28 23:09:51 <veremitz> so the site is just currency
Dec 28 23:10:20 <veremitz> auf deutsch: https://www.digikey.de/product-detail/en/jst-sales-america-inc/ASZHSZH28K152/455-3079-ND/6009455 ;)
Dec 28 23:10:33 <set_> Why would they precrimp them?
Dec 28 23:10:43 <set_> That is $0.42 a pop.
Dec 28 23:10:47 <veremitz> so you don't have to but the $200 tool
Dec 28 23:10:51 <veremitz> buy*
Dec 28 23:10:53 <set_> Oh.
Dec 28 23:10:53 <veremitz> or more.
Dec 28 23:11:12 <set_> Makes sense, I guess.
Dec 28 23:11:40 <veremitz> yeah if you only want 10 wires ..
Dec 28 23:11:55 <set_> I only really need five.
Dec 28 23:12:05 <set_> I will compensate in case I make a huge error.
Dec 28 23:12:11 <veremitz> the other thing is .. those crimps usually come in a reel of 1000 minimum.
Dec 28 23:12:17 <set_> Oh.
Dec 28 23:12:24 <set_> Now, that makes more sense.
Dec 28 23:12:54 <veremitz> https://www.digikey.co.uk/product-detail/en/jst-sales-america-inc/WC-491/455-1131-ND/527364 - bargain, only £367
Dec 28 23:13:07 <set_> Aw.
Dec 28 23:13:17 <veremitz> we had one at work for PH series (2mm pitch)
Dec 28 23:13:50 <set_> Hmmm. I think I just use hand crimpers and some plugs to push 'em in.
Dec 28 23:14:10 <set_> I pulled one out once. Bloody thumb. Yep.
Dec 28 23:14:25 <set_> Anyway. Those crimpers are too nice for me. You were right.
Dec 28 23:15:12 <veremitz> https://www.digikey.co.uk/product-detail/en/jst-sales-america-inc/WC-240/455-1128-ND/527360 that fella there .. green one .. also £367
Dec 28 23:15:30 <veremitz> does a good job but Ouch thats expensive
Dec 28 23:15:48 <set_> would this be it: https://www.digikey.com/product-detail/en/jst-sales-america-inc/ZHR-3/455-1160-ND/608602.
Dec 28 23:15:59 <veremitz> sounsd right
Dec 28 23:16:00 <set_> For the connection.
Dec 28 23:16:02 <set_> Okay.
Dec 28 23:16:04 <set_> Seems right.
Dec 28 23:16:12 <veremitz> yeah ZH is the series, R is the housing
Dec 28 23:16:18 <veremitz> 3 is three-ways ;D
Dec 28 23:16:24 <veremitz> quite easy to pick up :D
Dec 28 23:16:24 <set_> Right-o!
Dec 28 23:16:58 <set_> I did not find the github.com page for the AI until you said something. I kept going to the wiki for some reason.
Dec 28 23:17:02 <set_> Thank you.
Dec 28 23:17:17 <veremitz> no problem, I stumbled across it quickly.
Dec 28 23:17:36 <veremitz> so yeah, even I've bought pre-made leads for prototyping
Dec 28 23:17:56 <veremitz> you know you've got a sound connection without the expensive tool and thousands of tiny contacts!
Dec 28 23:18:08 <veremitz> and stripping it /exactly/ the right length, etc etc etc
Dec 28 23:18:29 <set_> I just got this puppy. Now, I need some hardware to be fully equipped to handle things. I usually make my own leads but I do not believe they are proper ever.
Dec 28 23:18:37 <set_> Length wise.
Dec 28 23:18:54 <set_> <<<<< LAZY!
Dec 28 23:19:20 <veremitz> :P
Dec 28 23:19:26 <set_> Blah, blah, blah!
Dec 28 23:21:25 <set_> So, it is a ZH and not a SH?
Dec 28 23:21:45 <veremitz> yes,  according to the schematics
Dec 28 23:21:54 <set_> I am getting the chip only.
Dec 28 23:21:59 <set_> From the schematics.
Dec 28 23:22:07 <veremitz> left, there's a blue box
Dec 28 23:22:15 <set_> More research. Okay. I will look.
Dec 28 23:22:21 <veremitz> under it .. the text 'B3B-ZR-(LF)(SN)
Dec 28 23:22:34 <veremitz> with UART_TX, UART_RX & GND
Dec 28 23:22:59 <veremitz> grid B2
Dec 28 23:23:15 <set_> I got you now. I missed that. Sheesh-o-la.
Dec 28 23:23:26 <set_> B3B-ZR(LF)(SN), right.
Dec 28 23:23:46 <veremitz> its OK .. I created these kinda things once :D
Dec 28 23:24:41 <set_> Hey.
Dec 28 23:24:44 <set_> !
Dec 28 23:25:12 <set_> It is cheaper to purchase the three pins, the leads, and the connector in one than to do the work and purchase the components.
Dec 28 23:25:14 <set_> Odd days.
Dec 28 23:25:33 <veremitz> :)
Dec 28 23:26:17 <set_> I mean. I purchase three leads w/ crimped ends for $0.40 or whatever and then it is other stuff too. That is over a dollar. They have one already put together.
Dec 28 23:26:30 <set_> That is $0.40 a piece.
Dec 28 23:27:10 <set_> But, but.
Dec 28 23:27:14 <set_> It does not go to USB.
Dec 28 23:27:28 <set_> BBB.io made this a trial. This should be fun!
Dec 28 23:29:17 <set_> So, I will have to wire it to usb. Got it.
Dec 28 23:33:48 <set_> Where did the usb-c to usb 3.0 cables go or come from?
Dec 28 23:34:48 <set_> Forget it. I am covered. I booted.
Dec 28 23:37:30 <set_> I thought I had no usb-c to usb 3.0.
Dec 28 23:37:32 <set_> I had one!
Dec 28 23:37:42 <set_> I kept looking and it was lurking behind me. Ha!
Dec 28 23:51:09 <set_> The AI "be" bot-hot!
Dec 28 23:51:25 <set_> Damn.
Dec 28 23:51:52 <set_> Did anyone figure out what happened?
Dec 28 23:55:13 <set_> Do you think it may have something to do w/ the USB-C to USB 3.0?
Dec 28 23:55:32 <set_> or is it just the processor onboard?
Dec 28 23:59:28 <zmatt> it doesn't have anything to do with usb afaik, but I did find issues in how power management is handled in software for both the EVEs and the Cortex-A15... I haven't had time to follow up on that and kinda forgot about it
Dec 29 00:00:07 <zmatt> basically if the TIDL firmware is loaded, all four EVEs seem to be running continuously even when "idle"
Dec 29 00:02:40 <set_> Okay.
Dec 29 00:02:46 <set_> No issue. I found some docs. on the issue.
Dec 29 00:02:52 <set_> I am trying them now.
Dec 29 00:03:04 <zmatt> ?
Dec 29 00:03:20 <set_> https://beagleboard.org/upgrade ideas?
Dec 29 00:05:58 <zmatt> you mean "I'm going to try installing updates to see if it helps"
Dec 29 00:06:18 <set_> Yea boy!
Dec 29 00:06:21 <set_> I will try.
Dec 29 00:06:26 <zmatt> let's hope it doesn't go into thermal shutdown *while* installing updates :P
Dec 29 00:06:57 <set_> Anything for now. That thing is hotter than me in summer on the ground pushing 785' * 568' and with pleasure.
Dec 29 00:08:44 <zmatt> deleting the TIDL firmware file (or just moving/renaming it out of the way) and rebooting helps a lot I think, but obviously breaks TIDL
Dec 29 00:08:53 <set_> Okay.
Dec 29 00:09:04 <set_> I wanted to try it one day. I can remove it for now.
Dec 29 00:09:47 <zmatt> I think it's the /lib/firmware/dra7-* firmware files
Dec 29 00:09:54 <zmatt> iirc
Dec 29 00:09:59 <set_> Oh. Okay.
Dec 29 00:12:33 <zmatt> file or files, can't remember if it's more than one
Dec 29 00:13:22 <set_> NO issue.
Dec 29 00:13:27 <zmatt> iirc it was the DSP firmware that caused it (there's no separate EVE firmware, the DSP(s) load firmware onto the EVE(s))
Dec 29 00:13:30 <set_> I will keep trying to update and see what happens.
Dec 29 00:13:39 <set_> Oh.
Dec 29 00:13:46 <set_> I was unaware of that factoid.
Dec 29 00:13:59 <set_> That board is hot,  hot, hot!
Dec 29 00:14:11 <set_> The cooling tower is super hot. Ouch!
Dec 29 00:14:29 <zmatt> well since updating tends to cause overheating, it may actually be better to disable the DSP firmware (and reboot) before installing updates
Dec 29 00:14:40 <zmatt> since a thermal shutdown while installing updates may leave the system in an unuable state
Dec 29 00:14:48 <zmatt> (as in, requiring reflashing)
Dec 29 00:14:53 <set_> Oh. Okay.
Dec 29 00:14:55 <set_> Got it.
Dec 29 00:14:59 <set_> Slow-mo!
Dec 29 00:16:41 <set_> I am going to try the upgrade and give feedback.
Dec 29 00:16:46 <set_> We shall see!
Dec 29 00:17:06 <set_> Thermal, no. Forget thermal. What about mental?
Dec 29 00:17:08 <set_> Ha.
Dec 29 00:17:38 <zmatt> I'm pretty sure this isn't Persona 5
Dec 29 00:19:07 <set_> Otay.
Dec 29 00:23:26 <set_> Well, there is a lot of software on this board, many ports and sockets for node-red and others.
Dec 29 02:16:42 <set_> I found a fan in my rubbish! Boy! Time to cool things off...
Dec 29 02:59:46 <refusenick> I finally brought a TTL-to-USB cable. Upon trying to boot Void Linux on the Beaglebone Black, I got this: https://0x0.st/zDGs.txt
**** ENDING LOGGING AT Sun Dec 29 03:00:00 2019