**** BEGIN LOGGING AT Wed May 24 03:00:05 2017 May 24 15:59:15 hi all May 24 15:59:36 hey May 24 16:00:04 ready for the meeting all? May 24 16:00:10 o/ May 24 16:00:43 hi May 24 16:01:09 hi May 24 16:01:22 hi May 24 16:01:27 hello :) May 24 16:01:28 m_w: https://www.hackster.io/46021/beaglewire-566292 May 24 16:02:11 hmmm May 24 16:02:14 pmezydlo: yes I already forwarded it to hackster.io's manager and we got 2 twitter posts from them May 24 16:02:42 https://twitter.com/HacksterPro May 24 16:02:51 hi all May 24 16:02:57 https://twitter.com/Hacksterio May 24 16:03:09 m_w: fine it's popular project May 24 16:03:32 either way May 24 16:03:37 lets get started May 24 16:03:52 wish it would be that hot in summer in germany, haha May 24 16:04:22 yeah it's very hot May 24 16:04:28 today's agenda is pretty simple May 24 16:04:41 where is everyone at with their videos? May 24 16:05:17 I've just got to proofread my "script" and record the voiceover, should be done tonight May 24 16:05:29 almost done May 24 16:05:30 just voiceover remaining May 24 16:05:39 the recommended length is ~2min, correct? May 24 16:05:47 slides completed, will do voiceover today after preparing script May 24 16:06:06 yeah a few minutes is around 2 min May 24 16:06:30 videos? May 24 16:06:32 sounds good, thanks :) May 24 16:08:12 for me also voiceover is left May 24 16:08:32 doh. distracted. here. May 24 16:08:49 only Shirlet Temple posted a video!! May 24 16:08:58 jkridner: is there a process for getting customs fees reimbursed? May 24 16:08:58 Shirley May 24 16:09:15 Shirley looks a lot like jkridner May 24 16:10:08 ee: I don't have one at the moment. I only have ways of paying for hardware, not reimbursing. I could send you something else to compensate, but you might get another tax bill. :-( May 24 16:10:40 * nerdboy eats the travel for google... May 24 16:11:59 jkridner: hmmm that's a bummer. I'll get back to you on that. May 24 16:12:26 I think it's possible to buy off of digikey.ca from anywhere in the world, which wouldn't incur any fees May 24 16:12:29 but I'll have to check May 24 16:12:53 jkridner: what about my shipment from element14 May 24 16:13:15 nerdboy: for mentor summit travel, there's a (somewhat) more direct way as Google does the reimbursement of approved travelers; though BeagleBoard.org does cut the check to the individual. May 24 16:13:51 thetransformerr[: I just got the Indian tax ID they requested today and sent it to them. hopefully they'll respond quickly and move the shipment. May 24 16:14:02 2 of the maxq boards go to ds2 first May 24 16:14:05 Hello everyone... sorry for the delay May 24 16:14:33 My video is linked to the elinux wiki page May 24 16:14:52 still an open question, but take a chance and send them to the "team" if that's easier May 24 16:15:35 *thumbs up* May 24 16:16:29 first May 24 16:19:47 i only see one video on the page... May 24 16:20:57 nerdboy: yeah, me too. Only indu has a video up. May 24 16:21:56 so it appears most are working on the voiceover now May 24 16:22:18 any other reasons for the hold ups on the videos? May 24 16:23:34 yes, voiceover left. video will be uploaded today. May 24 16:23:38 nope, I will surely upload by tonight May 24 16:23:58 which tonight? May 24 16:24:06 tonight PDT/EDT/etc? May 24 16:25:45 :) you caught it, tonight/today by IST(Indian ST) May 24 16:25:51 indu: thanks for the video. just watched it. May 24 16:26:30 thetransformerr[: so in a few hours? ;) May 24 16:27:03 I have to record voiceover for 3 slides only should be ready in 10-12h May 24 16:27:50 jkridner : Thanks May 24 16:29:06 ds2: yes :) May 24 16:29:30 +1 May 24 16:30:13 ds2: I was thinking that what if we fix two HC-sr04 in front of each other and trigger them at same time May 24 16:31:07 is there any reason that makes it unfeasible?? May 24 16:33:30 nerdboy: what is latest version for beaglebone black technical reference manual?? I wanted to know how many ePWM modules are present in bbb, May 24 16:34:01 because on some blog I see 3 modules and some says only two May 24 16:34:17 thetransformerr[: donno enough about the internal guts of the module to comment May 24 16:35:21 jkridner: i found a cheap serial cable, ordered it. should arrive in 2 days. Then I'll troubleshoot uboot, till then doing some npm packages testing for parsing May 24 16:35:30 ravikp7[m]: super! May 24 16:36:33 the latest was on that TI docs page May 24 16:37:54 the pwm stuff also has driver page May 24 16:38:27 http://processors.wiki.ti.com/index.php/AM335x_PWM_Driver's_Guide May 24 16:38:35 i think you have 2 May 24 16:40:04 nerdboy:and for starting we are using threshold method i.e. whenever ecap registers a value above threshold it stores time as TOF May 24 16:42:44 so no more prudaq? May 24 16:49:43 ds2: is it possible like this diagram below that we trigger tx at same time,rx catches signal giving us TOF in one direction May 24 16:49:47 * thetransformerr[ uploaded an image: Screen Shot 2017-05-24 at 10.16.58 PM.png (106KB) May 24 16:52:12 i'm nt sure that will work... May 24 16:52:54 and what do we say about this circuit,I cant its original page, just got this image from google May 24 16:53:06 at least not without decoupling the two on each board May 24 16:53:26 what circuit? May 24 16:53:28 * thetransformerr[ uploaded an image: IMGP6404.jpg~original.jpeg (120KB) May 24 16:54:00 depends on what is inside May 24 16:54:06 looks like they have used rs232 May 24 16:54:34 generally, we should reduce hw hacking in GSoC May 24 16:54:36 those are decoupled May 24 16:54:54 that's the intent anyway... May 24 16:55:10 less hw hacking more software hacking May 24 16:55:22 as you say !! May 24 16:56:37 right now the plan is to "tap" those maxq boards, essentially bypass the microcontroller and control tx/rx from bb May 24 16:57:13 more or less... May 24 16:58:53 nerdboy: for ecap program, I read the manual, would you please guide me how to start with the code, until now I have found about various registers that they use like ecttl, cap1-4 May 24 17:00:26 thetransformerr[: How are you tracking these experiments? May 24 17:01:33 tell me how to use drivers you shared with me,and as per several tutorials they were changing the pin mux from sysfs, how to do that in program May 24 17:02:03 ds2: I have been noting them down in a special notebook May 24 17:02:33 most of them looks like sketch though, any better suggestions, pls share May 24 17:10:48 thetransformerr[: prehaps a blog? May 24 17:11:55 that's nice idea, it would even suffice the report required to be posted weekly during coding period May 24 17:12:49 as llng as you scrape it and mail it... May 24 17:12:57 *long even May 24 17:13:25 that ecap driver is mdp's => poke him May 24 17:13:58 then blog is going to be tiring, I think weekly mails and notebook would do nice May 24 17:14:05 hi mdp: May 24 17:14:39 some of those notes we'd like to see... May 24 17:15:05 use github wiki and/or .rst files maybe? May 24 17:15:30 I wanted your advice and suggestions for how to start with ecap driver program May 24 17:16:20 okk I would record them as imporatnt milestones on github wiki May 24 17:17:08 once you start a wiki you can clone it May 24 17:17:27 * nerdboy enjoys .rst over .md markup May 24 17:18:41 by this weekend I would try to do following tasks by priority 1) write a ecap driver program for threshold detection 2)write a short wiki page 3) dig anything about phase diffrence method and ?? May 24 17:19:57 you need to understand what you can/can't get from ecap May 24 17:20:05 for sensor part I am assuming that I would just have to make a pin high and triggering would be done, same goes for receiving, I have to care about pin input May 24 17:22:11 that's why I want to go specifically into threshold detection, according to my knowledge eCAP has 4 capture registers which can record two events mainly rising edge event or rising and falling event May 24 17:26:02 how are you expecting it to work with ecap? May 24 17:31:35 there might be even more events, because I could not grasp some of concept, however with above mentioned there may be several ways, like simplest is detection of first rising event, other way might be to add some unique variatian but short/very short into transmitter and and then analyse it at receiver end May 24 18:11:45 try it and see? May 25 02:28:57 BeagleLibs project video is up on the wiki! The voiceover is... only decent but I think the video does it's job :) May 25 02:37:10 *its **** ENDING LOGGING AT Thu May 25 03:00:02 2017