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<kristianpaul> Regarding Software Freedom: the caveat regarding this CPU is that it requires ARM-proprietary libraries for the 3D Graphics (as does virtually every single embedded SoC on the planet with the almost exclusive sole exception of the Ingenic jz4760
<kristianpaul> he :)
<pabs3> kristianpaul: context?
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<wpwrak> pabs3: i'm wondering if the answer to that is a string or a boolean :)
<DocScrutinizer> hmm, GordonFreeman ? we got a freemangordon in #maemo-ssu :-D
<GordonFreeman> well i reserve the right to choose another random nick at any random time ;>
<GordonFreeman> ack.us/photo/my-images/811/20111218044511.jpg/
<GordonFreeman> pics of my hacked dvd drive
<GordonFreeman> so, i have removed the unnecessary stuff from the mainboard with a screwdriver, then cut some track on pcb, and reconnected the motor controller ic with cat-5e wires, and added a potentiometer for analog input control for the ic, and it works off a single 12V supply because i added a 7805 stab ic to generate 5V for it
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<wpwrak> GordonFreeman: if you can also figure out how to move the laser, and how to control it, then you'd have a nice photoplotter
<wpwrak> we one discussed this as an approach for direct writing of chip structures. preferably with a blue ray, though, for the color of the laser (closer to the peak sensitivity of the photo emulsion)
<wpwrak> the idea being that you have two dvd/blue ray devices in an X/Y arrangement, one moving the workpiece/table, the other moving the laser
<GordonFreeman> i don't do lol
<GordonFreeman> i can do photolithography btw
<wpwrak> (lol) mmh ?
<GordonFreeman> well, make a film, and shine lighht through it.
<wpwrak> by the way, this has a serious background. have you seen this ? http://colossus.cs.rpi.edu/~azonenberg/papers/litho1.pdf
<GordonFreeman> actually i'm building 3 axis cnc milling machine
<wpwrak> with a direct laser writer, such a thing would be a lot easier
<GordonFreeman> i don't think so
<GordonFreeman> also it would take much more time
<wpwrak> of course. the greater the hack, the more time :-)
<GordonFreeman> :) i like eficient hacks
<wpwrak> it would still be very efficient. just a lot more magnificient ;-)
<GordonFreeman> ok i have seen blu-ray laser videos on youtube
<GordonFreeman> must be fun shooting through 10 dvd cases with it
<wpwrak> ;-)
<GordonFreeman> but i see no real use of it yet.... too little power. i cannot cut steel with it
<GordonFreeman> nor pcbbbs
<GordonFreeman> its only eye hazard
<akiwiguy> Several of them concentrated on one spot could do some damage to a pcb methinks
<GordonFreeman> no.
<GordonFreeman> how would you combine the laser beams into one line ? that is preferrably the possible thinnest line
<GordonFreeman> its silly to just aim $1000+ lasers onto an approximate spot
<GordonFreeman> btw you need insane amount of powwer to vaporize the copper with any laser that will be $10k$+
<wpwrak> you couldn't cut pcbs ... but you could make your own chips :)
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<kristianpaul> pabs3: yes (boolen), sorry source here http://rhombus-tech.net/allwinner_a10/orders/
<kristianpaul> wpwrak: quite boolean indeed ;)
<kristianpaul> Just cath my atention they keep comparing with ingenic products in other pages...
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<viric> wpwrak: do you still use kicad?
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<wpwrak> viric: yes, of course. what else is there ? :)
<viric> I'm updating the package in my distro
<viric> to the sources of july 2011
<viric> do you use the latest bazaar checkout?
<wpwrak> no, we're at an older version. maybe a year old. we (qi-hw) have a bunch of patches that are essential for automating the workflow, and afaik they haven't been forward-ported yet
<viric> ok
<kristianpaul> argh, any idea how to hold well a wire, seems silicone is good in long term solution just look this gap between blue and purple cable http://kristianpaul.org/~paul/tmp/one_broke.jpg
<kristianpaul> s/is/is not
<qi-bot> kristianpaul meant: "argh, any idea how to hold well a wire, seems silicone is not good in long term solution just look this not gap between blue and purple cable http://kris nottianpaul.org/~paul/tmp/one_broke.jpg"
<viric> hm I've a resistor brown/black/gold/gold
<viric> what is that?
<viric> 1ohm?
<kristianpaul> yes
<kristianpaul> well, almost still +/- 5% of tolerance
<viric> aha
<wpwrak> kristianpaul: (pic) cephalopod son of The Blob ?
<kristianpaul> wpwrak: horrible yes, but it was holding clock from sige receiver to milkymsit :,)
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<blogic> wpwrak: ping
<blogic> wpwrak: i am playing with kicad atm
<wpwrak> *GONG*
<blogic> i just opened a .lib file and saw its ascii
<blogic> did you create you footprints with kicad ?
<blogic> i am thinking that vim might be easier :D
<wpwrak> no. for footprints, i use fped
<blogic> fped ?
<blogic> homebrew ?
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<wpwrak> yup. all mine :)
<blogic> ok ...
<blogic> i see you had the same thought as me then
<blogic> i was sitiing here thinking that the editor in kicad is weird
<blogic> :D
<wpwrak> the footprint editor is a joke. and not a good one.
<blogic> .... debian wants to install 167MB of dependenices for gtk2 :D
<blogic> ok
<blogic> i thouhgt it was just me
<wpwrak> here are some example of footprints we did with fped: http://people.openmoko.org/werner/gta02-core/gta02-core-modules.pdf
<blogic> aweome
<blogic> i need to make some weird sot89 packages and lqfp
<blogic> *lqfp128
<wpwrak> some of them are unfinished, e.g., have silk screen on pads and such
<blogic> ok
<blogic> well
<blogic> the first bcps will be done on a cnc machine
<blogic> so silkscreen is not needed just now
<blogic> but once we produce i guess ......
<wpwrak> here's a (small) set of footprints that should be good for production. some were actually used in production: http://projects.qi-hardware.com/index.php/p/kicad-libs/source/tree/master/modules
<blogic> cool
<wpwrak> we have a few more tested ones, scattered over various projects
<blogic> ;)
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<viric> hm
<viric> do thermistors have colour codes?
<kristianpaul> nope that i know, usually a datasheet
<viric> hm mine has a black stripe, red stripe, and gold end
<kristianpaul> may be is a thermocouple
<viric> hm
<viric> I don't think so
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<viric> mh I've a SMD resistor that says 5603. Do you interpret 560K?
<wpwrak> possibly. 4 digits is somewhat rare, particular in the kind of circuit you're looking at. i'd measure.
<viric> but I'd have to desolder it
<viric> or calculate the big mesh of resistors :)
<GordonFreeman> matrix multiply it
<viric> ?
<GordonFreeman> you know, linear equations
<viric> yes
<wpwrak> just measure it. if it's > 100 kOhm, it's probably really ~560k. if it's more like 50 Ohm, then it's 56 plus a weird extra digit
<GordonFreeman> 4 digit is not rare btw, i use them often, they have 1% or more precision in general
<viric> It has some 10K resistors in parallel
<viric> and measuring it, it says ~10K
<wpwrak> GordonFreeman: yes, but that seems to be the kind of circuit where they design with +/- 50% ;-)
<wpwrak> GordonFreeman: of course, they may still have simply find it cheaper to use a 560k 1% than a 560k 5%
<wpwrak> s/find/found/
<qi-bot> wpwrak meant: "GordonFreeman: of course, they may still have simply found it cheaper to use a 560k 1% than a 560k 5%"
<GordonFreeman> i never bought resistors >10% precision in smd
<viric> it's the circuit of a heater, that simply has the opam working somewhat as a trigger schmith, for an opto-triac to switch the heater on and off.
<wpwrak> i said "design" not "implement" ;-)
<GordonFreeman> i see, then why are you concerned about values if it needs +-50% precision?:
<viric> well, the circuit fails :)
<viric> I wonder what piece to blame.
<wpwrak> 10k is a tricky result ;)
<viric> :)
<GordonFreeman> i can tell you a quickhack function for resistor and capacitor networks, it's called the "Replus" operator, R_e=1/((1/R1)+(1/R2))
<viric> :)
<viric> amazing hack
<GordonFreeman> you can extend it to any number of resistors ;>
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<blogic> wpwrak: kicad is not bad
<blogic> wpwrak: just tsrated making some simple layouts for testing
<blogic> small atmega32u2 based baord
<blogic> not as comfortable as eagle
<blogic> but i used to think that eagle was obscure
<blogic> :)
<wpwrak> what do you think is missing ?
<wpwrak> i think any eda system is obscure. goes with the territory :)
<blogic> nothing missing
<blogic> just the flow is very different to others i used
<wpwrak> ah yes
<blogic> the whole sch->netist->pcb
<blogic> and the component not being linked to a footprint but the netlist bit doing the mapping
<wpwrak> hehe :)
<wpwrak> there are some quirks in selections, too
<GordonFreeman> i am writing a pcb editor software for linux so i'd be interested in your problem
* GordonFreeman is Dominating
* GordonFreeman is Godlike
<blogic> GordonFreeman: link ?
<blogic> wpwrak: yes i found soem quirks already
<blogic> i did however just open a bottle of red wine for inspirational purposes
<blogic> :)
<GordonFreeman> i'm writing the primitives rendering an core functions currently...
<blogic> ok
<wpwrak> it'll all make sense when you've finished that bottle :)
<blogic> i know
<GordonFreeman> wpwrak<< but if you have problems in general i may never let happen them in my software
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<GordonFreeman> i design pcb-s too btw, so i'd like to make it comfortable
<GordonFreeman> i'm not telling secret if i say it will have fractal components
<wpwrak> does the chip industry know about that yet ? :)
<GordonFreeman> no <;
<GordonFreeman> they'll have a concurrency
<GordonFreeman> some SDL example for linux
<GordonFreeman> uses HRT
<blogic> GordonFreeman: i see you dont like indenting :D
<GordonFreeman> working on that ;>>
<GordonFreeman> but i came from assembly
<blogic> hehe
<GordonFreeman> i use geany btw
<GordonFreeman> recently changed the tab to spaces so it will be the same in mc f4 now
<blogic> i use vi
<blogic> :D
<GordonFreeman> i have it because it's not user friendly
<GordonFreeman> *hate
<blogic> vi ?
<GordonFreeman> yes
<blogic> hehe
<GordonFreeman> :quit to quit ?
<GordonFreeman> lold
<GordonFreeman> do not want
<blogic> i find a mouse to be the most user unfriendly tool
<blogic> apart from the fact that it is slow and kills productivity
<GordonFreeman> sometimes
<blogic> but then its everyones own personal preference i guess
<GordonFreeman> but if you have to draw a pcb then it is more user-friendly than no mouse
<GordonFreeman> feel free to give ideas for alternative input methods
<blogic> hehe
<GordonFreeman> blogic<< btw, come to #theblackmatrix and kick logic
<GordonFreeman> you deserve that nick ;>>>
<lars_> vim is power-user-friendly
<GordonFreeman> power users like comfort if they do actual work i guess
<viric> wpwrak: so, I tweaked the circuit so it works now. I put a 6K8 resistor in parallel with another to make the opam schmitt trigger switch at a more normal temperature. :)
<blogic> lars_: +1
<viric> but I'm quite rusted at all this
<GordonFreeman> blogic<< f9 compile, f5 run, syntax highlight, automatic tooltips/code-completion rulz
<blogic> GordonFreeman: no whitespace error highlighting :)
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