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| whatnick | hi all | 00:40 |
|---|---|---|
| whatnick | just ordered one of the numato dev boards, point me to the toolchain to get stuff onto it | 00:40 |
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| mithro | paddatrapper: pong? | 04:04 |
| paddatrapper | mithro: Just wondering if you had had a chance to look at the Opsis set_interface issue with the audio firmware? | 04:05 |
| mithro | paddatrapper: Sadly no | 04:05 |
| mithro | paddatrapper: I'm back at work today | 04:05 |
| mithro | paddatrapper: Currently trying to catch up on everything with that... | 04:06 |
| paddatrapper | mithro: Ok no worries. I haven't had much chance to do much in the last few days either | 04:06 |
| mithro | paddatrapper: Got a weekly update post? | 04:10 |
| mithro | paddatrapper: When is a good time to have our weekly meeting? | 04:10 |
| paddatrapper | mithro: I'll have to write it tomorrow (it's past midnight at the moment), though there isn't much to report. | 04:14 |
| paddatrapper | Meeting wise - I'm not sure, I guess it will have to be something around this time on Friday for me (tomorrow is the conference dinner, so I'll be busy the whole night) | 04:16 |
| mithro | paddatrapper: you've done a bunch of testing on the Atlys / Opsis hardware now, right? | 04:17 |
| paddatrapper | mithro: yup and found the audio firmware to work with no problems on the Atlys, while the Opsis is still a work in progress | 04:18 |
| paddatrapper | The lights example also works correctly on both | 04:19 |
| mithro | paddatrapper: Oh great! | 04:21 |
| mithro | paddatrapper: Can you upload some videos of it working on all the boards you have? | 04:21 |
| paddatrapper | mithro: yeah, it was better than I expected. | 04:21 |
| paddatrapper | Upload videos of the lights example, I take it? If so sure | 04:22 |
| mithro | paddatrapper: Basically, it would be good if we could go - "And the results of loading this you should see [this on your board](link to a video of it working)" | 04:22 |
| paddatrapper | mithro: yeah. The audio firmware doesn't have much actually happen on the board (aside from the lights indicating start up), so I don't think that will be very useful, but can certainly do the lights example | 04:24 |
| mithro | paddatrapper: Yeah - I was only really thinking the lights example | 04:24 |
| paddatrapper | mithro: I'll do it tomorrow when I can liberate tumbleweed Atlys from playing hackers on repeat :) | 04:25 |
| mithro | paddatrapper: Okay :-P | 04:25 |
| mithro | paddatrapper: Some videos of a working HDMI2USB setup and how it is connected up would be kind of nice too | 04:25 |
| mithro | paddatrapper: More videos which show things working are always good... | 04:26 |
| paddatrapper | mithro: ok. I can also through in some links to how Debconf uses the opsis boards which may help. Will try get some video before the end of the conference too | 04:27 |
| mithro | paddatrapper: Basically we want things which are useful in two different ways | 04:27 |
| mithro | paddatrapper: Stuff which gets people excited about doing things | 04:27 |
| mithro | paddatrapper: Stuff which shows how things are setup and can be included in tutorials, documentation and similar. | 04:28 |
| paddatrapper | mithro: ok cool. I shall keep that in mind | 04:28 |
| mithro | rohitksingh_work: ping? | 04:29 |
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| mithro | Hi whatnick | 07:26 |
| whatnick | hey mithro | 07:32 |
| whatnick | got my numato coming on 14th | 07:32 |
| whatnick | was going to get tools | 07:33 |
| mithro | whatnick: I assume I met you at PyCon AU? | 07:33 |
| whatnick | yep | 07:33 |
| whatnick | tisham ... | 07:33 |
| mithro | Ahh! | 07:33 |
| whatnick | i was doing esp32 stuff with joel | 07:33 |
| whatnick | I am thinking of making high sampling energy monitors with NN inference with the FPGA fabric | 07:34 |
| whatnick | would be good learning on how such asics are built | 07:34 |
| whatnick | NN inference for appliance disaggregation | 07:35 |
| whatnick | Anyway not video related interest but ... seems like a good place to hang out | 07:40 |
| whatnick | the only video related interest I have is HDCP decryption | 07:40 |
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| mithro | tumbleweed: Ping? Wanted to ask about your pull request | 09:17 |
| mithro | hey jea | 10:54 |
| jea | hi mithro | 11:03 |
| mithro | jea: doing some hacking on hdmi2usb? | 11:12 |
| jea | mithro: not at the moment :( looking into work production issues | 11:13 |
| jea | I will be taking my opsis to work tomorrow though to see if/how we could integrate it with our stuff | 11:15 |
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| mithro | xfxf: So, can I get a copy of PyCon AU lightning talk? | 13:12 |
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| Ishan_Bansal | mithro : ping | 13:26 |
| mithro | Ishan_Bansal: pong | 13:27 |
| mithro | Ishan_Bansal: I'll try and get to reviewing your change list tomorrow | 13:27 |
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| Ishan_Bansal | mithro, Also mithro I am working on indentation of every module, as I have made separate branches for each module so if I am doing my changes in some module in say "Huffmancore" but those change are not made up in the next branches such as "bytestuffer" so is it a problem while merging the two. | 13:30 |
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| mithro | CarlFK[m]: ping? | 19:33 |
| CarlFK[m] | mithro: pong | 19:58 |
| mithro | So, PyCon AU just finished up a couple of days ago | 19:59 |
| mithro | Most videos were up within a couple of hours of the presentation \o/ | 19:59 |
| mithro | CarlFK[m]: Thanks for your help with the veyepar side of things | 19:59 |
| mithro | CarlFK[m]: Also, the funding for the LiteSDI core finally got approved! | 20:02 |
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| felix_ | hi | 20:03 |
| CarlFK[m] | Neat. Um... What does that mean? | 20:03 |
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| mithro | CarlFK[m]: We will have gateware code for doing SDI in FPGAs - means we can do our own version of the BlackMagic Decklink cards (fully open source!) | 20:25 |
| * felix_ will work on the sdi gateware and axi/wishbone adaperts from next month on for half a year | 20:26 | |
| paddatrapper | \o/ | 20:27 |
| CarlFK[m] | hi felix | 20:29 |
| froztbyte | neat | 20:40 |
| froztbyte | (hello world) | 20:40 |
| froztbyte | so here's a small pandora's box: if I wanted to buy some boards, is that a thing I can do atm? | 20:40 |
| paddatrapper | Hey froztbyte | 20:41 |
| froztbyte | \o | 20:42 |
| froztbyte | paddatrapper: I was thinking about poking you on slack earlier | 20:42 |
| froztbyte | paddatrapper: didn't know if you were student-ing atm | 20:42 |
| froztbyte | paddatrapper: we should chat about venue stuff soon (although I prefer next week, this week is a bit of a mess) | 20:43 |
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| paddatrapper | froztbyte: I'll be studenting (kinda) from next week. Then works for me too, currently I'm busy with Debconf | 20:43 |
| froztbyte | kk | 20:44 |
| froztbyte | there's a debconf? is this the one that I couldn't really mission to because reasons? | 20:44 |
| CarlFK[m] | froztbyte - hey! | 20:44 |
| froztbyte | hurro | 20:44 |
| froztbyte | how are you, CarlFK[m] | 20:45 |
| paddatrapper | froztbyte: yup. In Montreal this year | 20:45 |
| felix_ | for the people who are interested in the litesdi project: we have created an irc channel for that: #litesdi currently not much traffic, but i'm planning to mainly use that channel for discussions about the sdi gateware project | 20:46 |
| CarlFK[m] | hanging in - just did PyOhio last week - "the venue staff wants to handle audio, lets let the have it. it may be a disaster and then for 2018 we will tell them to stuff it." | 20:46 |
| CarlFK[m] | guess what? | 20:46 |
| froztbyte | still hunting equipment? | 20:46 |
| froztbyte | felix_: I'm "interested" but I don't know if I have braincycles to really allocate in the beginning. I'll wallflower and be willing to trial things out or so, if I can get my hands on things. | 20:47 |
| froztbyte | (interested in the sense that I'm totally keen on such a thing existing, but would be useless at general meaningful participation) | 20:47 |
| * froztbyte --honest | 20:48 | |
| felix_ | well, you can just join that channel and read the stuff that is discussed there :) | 20:48 |
| froztbyte | yeah, done so | 20:49 |
| felix_ | the work on the litesdi gateware will begin next month and i'm currently still more or less busy with my many other projects | 20:50 |
| froztbyte | :) | 20:51 |
| CarlFK[m] | I need to make the the little blooper real out of the sound check, then the venu guy touching the mic and then no more sound BUT WE DIDN'T NOTICE because they didn't give me the mixers they promised | 20:52 |
| mithro | froztbyte: What type of boards? | 20:56 |
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| froztbyte | mithro: something like opsis or such | 21:04 |
| mithro | froztbyte: What do you want to do? | 21:04 |
| froztbyte | every time we've been doing the stuff in .za, we've been bringing CarlFK's kit over | 21:04 |
| mithro | froztbyte: Ahh - can you fill out the Opsis interest spreadsheet I sent out a couple of months ago? | 21:05 |
| froztbyte | I could, where is it? | 21:05 |
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| froztbyte | CarlFK[m]: lululul | 21:06 |
| mithro | froztbyte: https://groups.google.com/forum/#!topic/timvideos/KeAbi5HoR8o | 21:06 |
| tpb | Title: Google Groups (at groups.google.com) | 21:06 |
| froztbyte | CarlFK[m]: it's _comical_ at this point :| | 21:06 |
| froztbyte | CarlFK[m]: or I guess maybe like taxes; just one of those things you can rely on | 21:06 |
| froztbyte | mithro: thanks | 21:07 |
| froztbyte | mithro: for allowing me to adequately/truthfully gauge the number I put down here, what's a (very) rough ballpark of what the per-board cost could be? | 21:07 |
| froztbyte | $150? $200? $500? | 21:07 |
| mithro | froztbyte: Probably around $420 USD | 21:08 |
| froztbyte | done | 21:08 |
| froztbyte | mithro: is this a list I should be following? | 21:09 |
| mithro | froztbyte: Yes | 21:09 |
| froztbyte | mithro: can I trick you into mentioning things on IRC in general? ;) | 21:10 |
| mithro | froztbyte: Hrm? | 21:10 |
| froztbyte | just being difficult, don't mind me. | 21:10 |
| froztbyte | (it's way too late and my day has run way too long, brain unclutching) | 21:10 |
| mithro | IRC is probably where most discussion ends up happening | 21:11 |
| CarlFK[m] | froztbyte: my guess is what you are fishing for... gets you an old boot. mithro is trying to find out about the next production run and hasn't heard back. | 21:14 |
| froztbyte | CarlFK[m]: nah, I've answered the list entry already | 21:15 |
| froztbyte | I figure there's no immediate hope, that's okay | 21:15 |
| froztbyte | figured so at the onset of my original question, even :) | 21:15 |
| paddatrapper | froztbyte: we _may_ have some to use for pyconza this year, as I plan on bringing one of Debian's back and tumbleweed may be able to organise too | 21:21 |
| froztbyte | cool | 21:23 |
| tumbleweed | mithro: are you still interested in looking at the atlys? | 21:23 |
| mithro | tumbleweed: In what manner? | 21:23 |
| mithro | I would like paddatrapper to have an Opsis and Atlys if possible | 21:23 |
| tumbleweed | mithro: that the USB streaming is all broken | 21:24 |
| mithro | tumbleweed: Yes, I want to fix that but I'm still waiting a bug report? | 21:29 |
| tumbleweed | mithro: sure | 21:32 |
| tumbleweed | is there a bug about 2 outputs not working? | 21:33 |
| * tumbleweed doesn't see one | 21:33 | |
| mithro | tumbleweed: Dunno, there should be | 21:34 |
| mithro | tumbleweed: Actually, its 2 outputs, 2 inputs and the encoder that things break | 21:34 |
| mithro | tumbleweed: I believe that xfxf was using 1 input, 2 outputs and encoder at PyCon AU? (xfxf was that correct?) | 21:34 |
| tumbleweed | 1 input off didn't seem to help | 21:34 |
| mithro | tumbleweed: Yeah - I'd log a bug about that... | 21:34 |
| CarlFK | I'm in a coffee shop at the moment, but I can setup tests at home in 30 in or so | 21:35 |
| tumbleweed | https://github.com/timvideos/HDMI2USB-litex-firmware/issues/346 | 21:37 |
| tpb | Title: enabling a second output makes output unstable · Issue #346 · timvideos/HDMI2USB-litex-firmware · GitHub (at github.com) | 21:37 |
| mithro | tumbleweed: Need as much information as you can provide | 21:37 |
| mithro | tumbleweed: And some output of the debugging would also be very useful | 21:38 |
| CarlFK[m] | tumbleweed (IRC): I'll need 2 hdmi displays, right? | 21:38 |
| mithro | CarlFK[m]: well, nothing really needs to be attached to the hdmi outputs | 21:39 |
| CarlFK[m] | I was wondering bout that. good. they are in boxes. | 21:39 |
| mithro | CarlFK[m]: if you see the underflow number be non-zero then it is a problem | 21:39 |
| olasd | mithro: our electronics people don't do ice based designs, so there's not much interest in the toolchain | 21:42 |
| mithro | olasd: Hrm? | 21:42 |
| paddatrapper | mithro: we use/want to use ice for the fgpa? | 21:43 |
| tumbleweed | mithro: and https://github.com/timvideos/HDMI2USB-litex-firmware/issues/347 | 21:43 |
| tpb | Title: USB streaming is corrupted on Atlys · Issue #347 · timvideos/HDMI2USB-litex-firmware · GitHub (at github.com) | 21:43 |
| paddatrapper | s/fgpa/fpga | 21:43 |
| tumbleweed | mithro: I need to know what information you need | 21:44 |
| mithro | paddatrapper: I doubt it will be ever useful for HDMI2USB, but it is useful for MicroPython on FPGAs which is a good gateware drug to getting people able to contribute to HDMI2USB | 21:44 |
| paddatrapper | mithro: ah I see | 21:44 |
| mithro | tumbleweed: I need the output of "version", a picture of how things are wired, info on how the device is configured, dmesg output on capture computer, output from what ever software is doing the capture, lsusb output info | 21:45 |
| CarlFK[m] | froztbyte (IRC): and anyone that wants a chuckle... https://veyepar.nextdayvideo.com/main/raw_file/15522/ | 21:46 |
| tpb | Title: Veyepar: Video eyeball produce and review. (at veyepar.nextdayvideo.com) | 21:46 |
| tumbleweed | we tried various wirings | 21:46 |
| mithro | tumbleweed: You sure you are loading the Atlys hdmi2usb.hex? The hdmi2usb.hex is board specific (so don't load the one from the opsis) | 21:46 |
| tumbleweed | and the setup that we got that from is long gone | 21:46 |
| tumbleweed | mithro: yes I'm sure | 21:46 |
| tumbleweed | also, the atlys is still online for you to play with | 21:47 |
| mithro | tumbleweed: Okay great | 21:47 |
| tumbleweed | it's been up for about a wek now :P | 21:47 |
| tumbleweed | week | 21:47 |
| CarlFK[m] | click the bump in the image that takes you to 11:00:00 where the presetner says stuff... then click the last little peeks that take you to 16:00:00 where staf guy touches the mic and ... thats the end of audio :p | 21:47 |
| mithro | tumbleweed: I'm afraid that I also have to do the work I'm actually paid for :-P | 21:48 |
| tumbleweed | mithro: of course | 21:48 |
| tumbleweed | and I have lots of conference orga work to do | 21:48 |
| mithro | tumbleweed: All the above info would be super useful | 21:48 |
| froztbyte | CarlFK[m]: great crowd noise tho | 21:50 |
| CarlFK[m] | froztbyte: left is sound system, right is camera mic. which is what got used for the talk cuz the other thing is ...off or whatever | 21:51 |
| CarlFK[m] | see ya, bb in 20 | 21:51 |
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| xfxf | mithro: thats correct. i thought it was only the two plenary rooms but at some point MCEC added off stage confidence monitors to the other rooms too and hooked them to output1. so even venue av people have confidence in the opsis's now :P | 22:14 |
| mithro | xfxf: Ha | 22:15 |
| mithro | xfxf: I would really like to find out why Debconf is having issues while you are not | 22:15 |
| xfxf | wierd. no idea - they are def using redmere cables? what length? | 22:16 |
| mithro | xfxf: The problem is underflows - so it has got something to do with the memory bandwidth | 22:18 |
| paddatrapper | xfxf: all the redmere cables we are using are about 1.5m | 22:18 |
| xfxf | manafacturing differences? i assume i ordered mine earlier than debconf, was all stock made in one go? | 22:18 |
| * tumbleweed should get some longer ones... | 22:18 | |
| xfxf | paddatrapper: should be fine, we're using 3ft to 12ft ones no problems. i did notice that they get damaged easily tho, i keep having to buy new ones | 22:19 |
| xfxf | and by damaged you don't see physical damage but you start having issues with capture. not underflows tho, just WER errors | 22:20 |
| mithro | WER is very different to underflow | 22:20 |
| mithro | xfxf: I wonder if it's the 50Hz verse 60Hz difference | 22:20 |
| mithro | xfxf: 60Hz does require more bandwidth I think? | 22:21 |
| xfxf | im happy to try some tests tonight, but can't now as on train to work | 22:21 |
| CarlFK[m] | mithro (IRC): is xenial lts your preference ? | 22:21 |
| mithro | xfxf: You mean you can't do FPGA development on the train? What a slacker? | 22:22 |
| xfxf | is debconf in us or eu? | 22:22 |
| tumbleweed | xfxf: neither, ca | 22:22 |
| xfxf | i thought eu was 50hz generally | 22:22 |
| xfxf | ca? | 22:22 |
| mithro | CarlFK[m]: Latest Ubuntu LTS is probably the best choice at the moment | 22:22 |
| tumbleweed | the country north of us | 22:22 |
| xfxf | oh right. i think of ca as California. did they secede when i wasn't looking? :P | 22:23 |
| mithro | Canada :-P | 22:23 |
| tumbleweed | :) | 22:23 |
| tumbleweed | so yeah, metric system + 110v @ 60Hz | 22:24 |
| xfxf | 1 of 3 is right at least | 22:24 |
| paddatrapper | well "metric system" I still had to give cable lengths in feat... | 22:24 |
| paddatrapper | s/feat/feet/ | 22:24 |
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| xfxf | wierd you're having issues tho, things were fairly smooth at pycon au for us. i think we had a few situations where we had to reboot a unit but it was rare | 22:25 |
| xfxf | that said | 22:26 |
| xfxf | most of our presenters used macs | 22:26 |
| xfxf | i bet thats not the case there | 22:26 |
| tumbleweed | haven't had any input issues | 22:26 |
| mithro | At 16bit YUV -- 720p50 is 737MBit/s while 720p60 is 885Mbit/s | 22:26 |
| paddatrapper | Thinkpads were the most common. I think I have seen 1 mac and that was running Debian | 22:27 |
| tumbleweed | and a number of old vga thinkpads | 22:27 |
| xfxf | lul vga | 22:27 |
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| CarlFK[m] | did I bring my xatron? vga->hdmi box to LCA? | 22:50 |
| CarlFK[m] | I can't find it. | 22:50 |
| xfxf | not sure but i don't have it | 22:57 |
| mithro | cr1901: so, SPI xmodem? :-P | 23:13 |
| cr1901 | mithro: Debugging it now | 23:13 |
| cr1901 | mithro: You have seen my recent commit? | 23:14 |
| mithro | cr1901: Probably not | 23:14 |
| cr1901 | mithro: Oh, well current status is I hacked up an xmodem impl that supports all modes, that naturally doesn't work. But I have qemu-litex up and running and I'm testing it against minicom's xmodem impl | 23:15 |
| cr1901 | After that I'll do sfl (which should be easier, tbh), confirm it works on qemu-litex. Then we get mimasv2 support "for free" | 23:16 |
| mithro | cr1901: Okay | 23:16 |
| cr1901 | And my opsis is running | 23:16 |
| mithro | cr1901: \o/ | 23:17 |
| cr1901 | mithro: Has anyone besides me played w/ opsis on windows? | 23:17 |
| cr1901 | to make things quick: hdmi2usb-mode-switch is not going to be trivial to make work on Windows. | 23:18 |
| cr1901 | So I build my firmware on Windows, and then send it to an ARM SBC which talks to the opsis for now | 23:19 |
| cr1901 | mithro: We can talk more about this after the SPI stuff, just wanted to give a heads-up. Monday was the first time I actually tried playing w/ Opsis _on Windows_. | 23:20 |
| mithro | cr1901: So I'm considering meson verse waf for replacing our current mishmash of shell, make and python | 23:20 |
| mithro | cr1901: Hrm? libusb should work fine on Windows.... | 23:20 |
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| mithro | cr1901: One big missing part is a Python only implementation (using libusb) of the fxload tool | 23:21 |
| cr1901 | mithro: That's not the problem. The problem is that on Windows, you either can use the libusb or the CDC driver. You can't hot-swap between them | 23:21 |
| cr1901 | *nix OSes (including the BSDs) have a mechanism for "hot swapping" between the serial/CDC driver and "direct" access using libusb | 23:22 |
| cr1901 | Windows does not have that mechanism, so the solution is to install a special signed driver called libusbK | 23:22 |
| cr1901 | mithro: libusbK makes libusb work on Windows, but you lose access to the driver you have previously | 23:22 |
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| cr1901 | unless you uninstall libusbK and reinstall the CDC driver | 23:23 |
| cr1901 | it sucks | 23:23 |
| cr1901 | mithro: I've heard good things about meson. | 23:23 |
| mithro | cr1901: Looking at the docs, there seems a number of ways around this | 23:24 |
| cr1901 | mithro: link? | 23:25 |
| mithro | Looking at http://www.libusb.org/wiki/libusb-win32 ... | 23:27 |
| tpb | Title: libusb-win32 – libusb (at www.libusb.org) | 23:27 |
| mithro | Anyway, that is not important for now... | 23:28 |
| cr1901 | mithro: I agree- just a heads up | 23:29 |
| cr1901 | mithro: The way _I_ thought about doing it was to use the free USB endpoint in the fx2 as a write-only implicit mode switch. But that means modifying the firmware and the numato driver (is their driver even open source?) | 23:30 |
| mithro | cr1901: Definitely an option... | 23:31 |
| * cr1901 /end minddump | 23:31 | |
| cr1901 | :) | 23:31 |
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| mithro | cr1901: The big problem I'm trying to solve at the moment is why the mor1k is locking up when executing our firmware | 23:37 |
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| cr1901 | mithro: Have you tried compiling it to a simulator? | 23:38 |
| mithro | Yes, it all runs fine in qemu | 23:38 |
| cr1901 | mithro: I mean icarus | 23:38 |
| mithro | I haven't tried the verilator one recently | 23:38 |
| cr1901 | Well, icarus is only gonna work if it locks up early, but I've successfully found a lock up w/ lm32 in one of my designs that way | 23:39 |
| mithro | cr1901: If I haven't figured it out by when you finish the xmodem SPI stuff, I'll probably get you to take a look at it | 23:40 |
| cr1901 | mithro: Okay | 23:40 |
| mithro | xfxf: What is the current status of your GUI thingy? | 23:48 |
| xfxf | mithro: the tk version works for basic use, started rewriting using toga, haven't finished | 23:48 |
| xfxf | it's pretty high up the TODO list to complete after pycon was done | 23:49 |
| mithro | xfxf: Is your code up anywhere? | 23:49 |
| xfxf | yeah, not sure if it's the latest version tho | 23:49 |
| xfxf | let me check | 23:49 |
| xfxf | https://github.com/xfxf/hdmi2usbmon/blob/master/simple_switch_ui.py | 23:50 |
| tpb | Title: hdmi2usbmon/simple_switch_ui.py at master · xfxf/hdmi2usbmon · GitHub (at github.com) | 23:50 |
| xfxf | there's a later version than that, but it's on a device not near me atm | 23:51 |
| mithro | I'll dump that onto the github issue | 23:51 |
| xfxf | iirc that version lets you choose inputs/outputs, and dumps debug output into a text frame, not much more | 23:51 |
| mithro | xfxf: Added that info to the GitHub issue about the GUI | 23:59 |
| mithro | bblr | 23:59 |
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