arm-netbook May 2017

arm-netbook@lists.phcomp.co.uk

47 participants
94 discussions

Changed list-id
by Elena ``of Valhalla'' 13 May '17

13 May '17

Hello I've just noticed that the list-id for this list has been changed: would it be possible to announce it in advance so that people have time to update their filters? BTW, I think that the current list-id also has a typo, so am I correct in thinking that it will probably change again in the future? -- Elena ``of Valhalla''

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Re: [Arm-netbook] Solid wood corner prototype
by Luke Kenneth Casson Leighton 11 May '17

11 May '17

On Thu, May 11, 2017 at 10:50 AM, Tor, the Marqueteur <Marqueteur(a)fineartmarquetry.com> wrote: > I never got a reply to this message, and seeing you ready to send the > microdesktop PCB to production, I thought I ought to make sure you saw > it, Luke. i did see it - i either replied or decided i didn't have time to take up the ideas: no on doing PCB redesigns, that's for sure: it's something like $600 a shot for the layer 2 PCBs plus assembly and takes about 3 weeks. time to move on. it's only 450 units. if it was 5,000 i'd do things differently. l.

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list posting etiquette
by Luke Kenneth Casson Leighton 11 May '17

11 May '17

On Wed, May 10, 2017 at 3:34 AM, Kyle <kyle(a)free2.ml> wrote: > Damn. You know a list has been taken over by posting nazis when entire > threads get hijacked just to tell anyone who cares to listen that someone > top posted, and that breaks someone's flow. nooo: it means that we have new people whom we need to accommodate and teach them how to not disrupt communication with over 400 other people. as we get new people, that discussion naturally needs to take place regularly. > Well, here's the deal. My e-mail > client is threaded, so I see the whole conversation in order. It just flows > naturally that way. indeed... but you are just one of the 400+ people. i don't use a threaded email client; others may use mutt, and so on. > If I want to read the same messages over and over, all I > have to do is open them as many times as I want. There is therefore no need > to quote anything at all, as I have the entire context. there is no need to quote anything at all... *for you*, as *you* have the entire context, and have an email client where it is convenient to review prior messages very very easily. a busy person (one who has hundreds of messages a day) would not have the time to do that - hence the reason why there are rules about providing (and cutting unnecessary) context. > I'm looking at you > especially, hard-core bottom posters, hard-core bottom-posting is just as bad, as is not cutting extraneous context > ---------------------------------------------------------------------- > On Tuesday, May 9, 2017 at 8:42 PM, "Person B" <person.b(a)othermail.ext> > wrote: >> On Tuesday, May 9, 2017 at 8:34 PM, "Person A" <person.a(a)email.ext> wrote: >> > On Tuesday, May 9, 2017 at 8:32 PM, "Person B" <person.b(a)othermail.ext> >> > wrote: >> > > On Tuesday, May 9, 2017 at 8:30 PM, "Person A" <person.a(a)email.ext> this kind of thing - not cutting extraneous context - is *really* irritating to have to read through. like the wikipedia page says, and every netiquette page says, it's really important to remove anything (but ONLY anything) which is not needed. the remaining context should make the ongoing immediate discussion "understandable". issues that have already been discussed, resolved and do not need to be repeated should be removed. it's pretty sensible stuff > I find this list to be quite informative, and I see a lot of good things > coming in the hopefully not-too-distant future because of the ongoing work > that is taking place here, as well as on various pages and articles linked > here. However, post police hijacking threads to tell people they're posting > wrong, when all they want to do is contribute to the discussion is > counterproductive at best, has happened 2 to 3 times just on this list in > the past 24 hours, please be patient: we have new people coming in all the time. > has completely derailed a thread at least once in that > time and is enough to make people who otherwise have good contributions want > to leave. well, one of the things we don't unfortunately enforce properly is good subject-line management, which would allow people to select the topics that they're interested in. so, i'm going to try to start doing that and would appreciate people doing the same. l.

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Solid wood corner prototype
by Tor, the Marqueteur 11 May '17

11 May '17

Thought I'd give a try at how a solid wood version would come out. Here is the result of about 45 minutes prototyping with a piece of 3/8" Cherry I had lying around. A couple notes: The 5/64" (.078", 1.98mm) bit has some tendency to wander, as can be seen in the holes. I also goofed the measurement so these are 11/16" instead of 9/16" wide. I didn't notice that until I was nearly done, and figured that since they weren't actually going to be used it didn't matter. I also didn't add the slot for the PCB, mostly because I wasn't sure of the size, and I didn't have the appropriate cutter lying close by. I have a couple thoughts on that. Tor -- Tor Chantara http://www.fineartmarquetry.com/ 808-828-1107 GPG Key: 2BE1 426E 34EA D253 D583 9DE4 B866 0375 134B 48FB *Be wary of unsigned emails* Stop spying: http://www.resetthenet.org/

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11may2017 - waiting for PCBs, doing 3D printing / printers
by Luke Kenneth Casson Leighton 11 May '17

11 May '17

ok so quick status update: * microdesktop v1.7 pcb: done. can go to production * microdesktop case design: 2nd revision needs to be tested * laptop PCB1: PCB's made, at factory, needs assembly * laptop PCB2: PCB's made, at factory, needs assembly. * laptop PCB3: spotted a flaw, needs a 5V power regulator added plus a way to do dual-power. * laptop PCB4 (actually for a new design "All-in-one PC"), PCB's made, at factory, needs assembly * EOMA68-A20 revision 2.7.4: PCB's made, at factory, components being ordered, needs assembly. * 3D printer from taobao: totally rubbish. undergoing MAJOR redesign just to recover the parts. * Anycubic 3D printer from aliexpress: works okay, max print speed 50mm/sec, it's "doing the job" * Research into new design of 3D printer started: http://reprap.org/wiki/Riki200 * EOMA68-iMX7 started with vincent: files to be handed over soon. i think that's most things. most of it is "waiting". for the laptop PCBs it'll be a few more weeks, then i'll be able to test out the new Frida 2.8in LCD, see if that's good. i also still have to test the passthrough card and check its HDMI conversion before sending it out for a new revision. designing a new 3D printer is a surprise but i feel it's essential. at least 10 3D printers need to be bought, and they need to be decent quality at a budget of around $USD 200 to 250. now if that means i have to design an actual 3D printing board to meet that budget then it's easily justifiable thanks to the numbers. i think what i will do is put the printer onto a crowdfunding campaign: if i'm making 10 already then if there's even one more person who wants one that's good enough. one thing that's completely awesome and a drop-in upgrade: the Flex3Drive direct-drive adapter: https://flex3drive.com/product/flex3drive-direct-drive-adaptor/ this basically drops into place of a standard NEMA17 so is far far lighter in weight, then there's a flexible driveshaft on a 40:1 wormdrive so the motor is static. you get the best of both bowden *and* direct drive, *without* the disadvantages of either, *and* a far higher gear ratio, in one fell swoop. totally awesome and a real simple decision to adopt. l. --- crowd-funded eco-conscious hardware: https://www.crowdsupply.com/eoma68

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eoma68 router (qca9531)
by Luke Kenneth Casson Leighton 10 May '17

10 May '17

okaaay so the plan is to restart the eoma68 router project, this time with a pre-existing reference design based on the QCA9531. that has a PCIe interface, USB2 and a 5-port GbE *and* a 2x2 2.4ghz WIFI antenna. full source is available for everything so it can be entirely libre and RYF Certified. the advantage of having an EOMA68 Card in the router should be clear: the Card will have considerably more resources: RAM, CPU cycles etc. meaning that VPNs can be done without high latency, yet take advantage of the LAN capabilities of the 5-port... you could put in a MiniPCIe Card (a *proper* one) e.g. a 3G/4G/LTE Modem, WIMAX, 802.11ac... blah blah. the tricky bit: connecting the EOMA68 Card to the QCA9531. now, i took a look at the Reference Design and i *really* do not want to touch the layout for the GbE, WIFI or PCIe. so i figured, why not connect the EOMA68 USB2 host interface back-to-back with the QCA9531's USB host? turns out that something called the Cypress AN2720 can do exactly that, and it comes up as a cdc_subset of the usbnet linux kernel driver. yay! quick search online: the datasheet is publicly available, easy to find on digikey. yay! so i would assume, because it's not an actual 10/100 ethernet, that it would run at (saturate) the full 480mb/sec of USB2. so not quite GbE speeds but pretty damn close. yay! anyway should be quite straightforward. l. --- crowd-funded eco-conscious hardware: https://www.crowdsupply.com/eoma68

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Re: [Arm-netbook] firefly 3399 all source software disclosed?
by ronwirring＠Safe-mail.net 10 May '17

10 May '17

-------- Original Message -------- From: Allan Mwenda <allanitomwesh(a)gmail.com> Apparently from: arm-netbook-bounces(a)lists.phcomp.co.uk To: Linux on small ARM machines <arm-netbook(a)lists.phcomp.co.uk>, Luke Kenneth Casson Leighton <lkcl(a)lkcl.net> Subject: Re: [Arm-netbook] firefly 3399 all source software disclosed? Date: Tue, 09 May 2017 08:24:02 +0300 > Quick give this man $150K for a libre CPU > > On 8 May 2017 18:43:07 GMT+03:00, Luke Kenneth Casson Leighton <lkcl(a)lkcl.net> wrote: > > > > On Mon, May 8, 2017 at 4:27 PM, <ronwirring(a)safe-mail.net> wrote: > > > > > > Best knowledge is, that new intel and amd processors cannot be reverse engineered. > > > What in regard of the latest mali gpus? > > > If you have the money, they can be reverse engineered? > > > > yes. about $150k would do it. but the question is, really: what would happen if you did? and, what else could you do with the same money? well, with the same money it would be possible to make our own libre processor, with enough extensions to be able to do 3D graphics *without* paying anyone a cent. any company tries to claim patent royalties, all that happens is a search is made on their "claims", for anything similar that has prior art. if it's another company, guess what? we notify that other company and watch the fireworks... l. arm-netbook mailing list arm-netbook(a)lists.phcomp.co.uk http://lists.phcomp.co.uk/mailman/listinfo/arm-netbook Send large attachments to arm-netbook(a)files.phcomp.co.uk > > > > -- > Sent from my Android device with K-9 Mail. Please excuse my brevity. How can you make an arm gpu for 150000usd? How would you use it? Would you put it additionally on a bord and not use the gpu located on the processor socket? If you reverse engineer the latest mali gpu, what you hold against it is, that when next version of an arm socket is for sale it will have a new mali gpu and require a new reverse engineering? Lets say 50000 people would buy the filrefly rk3399. Same people would pay 3eu each for reverse engineering the gpu. Then we would have a source code arm computer? It takes a lot of coordination to provide gnulinux distributions I assume. It is unfortunate people are not able to coordinate such that we can get source code hardware.

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I saw your recent update, Luke
by zap 10 May '17

10 May '17

Just one question, I am assuming since there will be internal sd cards that your replacing one or both of the internal usbs? or am I wrong? By the way, I have a suggestion if you feel up to it, Debian 9 seems to be very close to stable, if you feel like it, and anyone wants it, install it for them. Whenever I order it, probably that will be what I will want. Using Debian 9 right now to be honest. It seems more stable then Debian 8 to me. just a thought. I wish you the best of luck, not that you will need it. :) Hoping you don't get sick again also, I am glad you will be sticking the libre guidelines. Even if it is a pain in the butt to be putting it lightly I am sure.

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Laptop Power Input?
by Alexander Ross 10 May '17

10 May '17

Not sure what the power input for laptop is? 5V i think but at how many amps? I seen 3A for the cpu card... So i guess a 2.4A usb power supply won’t be suitable? Cus if it will work well from 2.4A 5V input, then i was thinking of getting this usb power supply. 6port version, really nice, efficient : https://www.mymemory.co.uk/anker-powerport-6-2-4a-usb-desktop-charger-white…

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Re: [Arm-netbook] eoma68 router (qca9531)
by Allan Mwenda 09 May '17

09 May '17

The 9590 cards are PCIe hope this helps http://www.neobits.com/compex_wle350nx_7b0000_compex_wle350nx_p9420581.html https://wikidevi.com/files/datasheets/compex/WLE350NX_DSv1.0.7.pdf and http://www.oxfordtec.com/us/airetos-aex-ar9590-ni.html http://www.airetos.com/products/aex-ar9590-ni/ On Sun, May 7, 2017 at 5:11 PM, Luke Kenneth Casson Leighton <lkcl(a)lkcl.net> wrote: > --- > crowd-funded eco-conscious hardware: https://www.crowdsupply.com/eoma68 > > > On Sun, May 7, 2017 at 3:05 PM, Allan Mwenda <allanitomwesh(a)gmail.com> > wrote: > > Is msata okay? I know its sold as Compex msata cards > > http://www.electronicdesign.com/memory/what-s-difference- > between-mpcie-and-msata > > answer: no. you specifically want a PCIe SSD. > > l. >

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arm-netbook May 2017