#avr | Logs for 2012-05-07

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[00:06:34] <Landon> o.O I just popped a module off of my TV
[00:06:45] <Landon> I wonder how difficult it would be to track down a Philips TM4W17 datasheet
[00:08:01] <Casper> is it a custom made part?
[00:09:04] <Landon> it's got some molding to fit the back of the TV, but it looks like that's just on top of the aluminum box the module is in
[00:09:29] <Landon> (this has all of the TV inputs to a 25 pin connector)
[00:09:33] <Casper> it seems to be a custom made part, so zero datasheet exists
[00:11:23] <Landon> unfortunate, I think it'd have been a real cool find if I had some FPGAs to play with
[00:11:40] <Landon> actually get to use some signal processing outside of matlab :P
[03:59:06] <_abc_> exit
[06:21:19] <cyanide> whats up everyone
[06:32:14] <OndraSter> are you kidding me, xmega256a3u for $5.10
[06:32:17] <OndraSter> WHY DIDN'T I GRAB THAT
[06:32:25] <CapnKernel> Where?
[06:32:30] <OndraSter> mouser
[06:32:33] <OndraSter> that is for 1pc order
[06:32:40] <OndraSter> http://cz.mouser.com/ProductDetail/Atmel/ATXMEGA256A3U-MH/?qs=HbI%2fMOA3e15fnIiDkevT%252bwT3iygj8uhPX6GR9qR6sjc%3d
[06:33:01] <CapnKernel> Not bad
[06:33:15] <OndraSter> I wanted to use xmega32d4+optional mcp2200 for USB-UART
[06:33:16] <OndraSter> but screw that
[06:33:21] <OndraSter> that would be something like $4.7
[06:33:43] <OndraSter> this is better :)
[06:34:10] <OndraSter> 256 vs 32kB flash, 16 vs 4kB RAM, integrated USB (time to start playing with LUFA? :D)
[06:34:25] <OndraSter> why there are no xmegas with Ethernet? :D
[06:36:54] <CapnKernel> So, Atmel gives him USB and then he starts complaining about no ethernet? What does he think this is, an ARM?
[06:37:18] <specing> you can get PICs that have ethernet built-in
[06:37:25] <OndraSter> blabla PIC
[06:37:33] <CapnKernel> I think somebody said something
[06:37:48] <OndraSter> CapnKernel, with ethernet it would be absolute killer
[06:37:56] <CapnKernel> Indeed
[06:38:57] <specing> Sadly PICs suck :(
[08:05:55] <OndraSter> I am pissed on myself. I am using mega128a that is $8 locally, while I could've gone with xmega256a3u for $5.10 :(
[08:05:57] <OndraSter> WHY
[08:05:57] <OndraSter> WHY
[08:05:58] <OndraSter> WHY!!
[08:06:14] <OndraSter> I wouldn't have needed the FT232 even!
[08:11:26] <CapnKernel> OndraSter: Now you know why the Maker gave you two legs.
[08:12:40] <specing> OndraSter: lol
[08:15:59] <OndraSter> y, CapnKernel ?
[08:16:16] <CapnKernel> So you can use one to kick the other.
[08:16:43] <OndraSter> lol
[08:20:33] <specing> CapnKernel: Can you get atxmegas over there in china for cheap?
[08:20:43] <specing> and if so, how cheap?
[08:21:16] <CapnKernel> I tried for OndraSter, but without much luck.
[08:21:26] <CapnKernel> I could find them, but only as imports. No price advantage over getting them outside of China.
[08:21:42] <CapnKernel> Tax on imports is very high.
[08:22:12] <specing> ah
[08:22:18] <specing> And other MCUs?
[08:22:28] <specing> same?
[08:23:13] <CapnKernel> Cheaper than outside.
[08:23:36] <specing> Which ones of the popular brands are produced there?
[08:24:11] <CapnKernel> I don't know.
[08:25:20] <specing> hmm
[08:25:36] <OndraSter> CapnKernel, I need also new brain, do they have some there?
[08:25:51] <specing> haha
[08:25:58] <CapnKernel> I wish
[08:26:40] <CapnKernel> I'd happily trade in for one that didn't keep thinking of boobies
[08:26:42] <OndraSter> you know, keep body but replace brain for some chicks
[08:26:49] <OndraSter> :D
[08:27:11] <OndraSter> because when you hear them and figure out what they are talking about, you just wanna harakiri them
[08:27:20] <OndraSter> often
[08:29:44] <CapnKernel> Mmmm boobies: http://myspace.roflposters.com/images/rofl/myspace/1234582556202.jpg.%5Broflposters.com%5D.myspace.jpg
[08:30:07] <CapnKernel> There's a strong inverse correlation between brains and beauty.
[08:30:46] <OndraSter> :D
[08:31:03] <OndraSter> http://a1.sphotos.ak.fbcdn.net/hphotos-ak-ash3/579239_354333464626721_103308439729226_988905_1400701261_n.jpg
[08:31:05] <OndraSter> :)
[08:31:07] <CapnKernel> If you've got looks, you realise you can get whatever you want by flirting, and therefore you never use your brain. So it never develops.
[08:31:25] <CapnKernel> OndraSter: What's with the dyed hair girls?
[08:31:57] <specing> They are hot
[08:32:01] <OndraSter> redheads <3
[08:34:25] <specing> CapnKernel: I've heard Allwinner/Softwinner/Boxchip/whatever is planning/has put out a cortex-a8 in a TQFP package
[08:35:21] <CapnKernel> That would be pretty cool.
[08:37:28] <mrfrenzy> that would be awesome
[08:37:36] <mrfrenzy> the 400-pin A10 is a little harder to solder
[08:37:59] <OndraSter> eh
[08:39:17] <OndraSter> there is nothing better than taking apart CRT screen to find inside old 6502 CPU lol
[08:39:35] <OndraSter> with special CRT stuff
[08:39:40] <OndraSter> but with OTP ROM :(
[08:39:44] <CapnKernel> WHAT? LOL
[08:39:51] <OndraSter> http://www.datasheetcatalog.org/datasheets2/10/1082383_1.pdf
[09:00:03] <WormFood> This is stupid! I go to silicon lab's web site, to get symbols of their products to use with my schematic software....but they don't have it....what they have is some "generic" .bxl file, that I have to convert into the library format I want.....great....but the tool to convert it to the format I need is over 55 meg, and only works on Winblows, of course....WTF Silicon Labs?
[09:04:19] <CapnKernel> WormFood: What tool did you settle on?
[09:05:00] <WormFood> I'm just playing around with Eagle, for the moment. Not doing anything serious with it. Will check out KiCad later.
[09:05:35] <CapnKernel> Eagle is like smoking. People say they'll just have a few puffs.
[09:05:58] <CapnKernel> Two months later, they say "Oh, can't stop now, got too much of an investment in it"
[09:06:28] <WormFood> I'm just making a small investment into it. Nothing major.
[09:08:54] <WormFood> if this looks like it will get bigger than I expect (a whole schematic), then I will probably cut Eagle loose, and use something else.....right now, I just want to reverse engineer some little bits, and put them down in a format where I can make sense out of them (schematics, instead of looking at a board)
[09:12:28] <OndraSter> guys, if xmegas have two DACs
[09:12:31] <OndraSter> well, one DAC with two channels
[09:12:34] <OndraSter> how do you use both? :)
[09:12:37] <OndraSter> for different values
[09:13:00] <CapnKernel> I started with Eagle, used it for a few weeks. It just felt wrong.
[09:13:12] <CapnKernel> Switched to KiCad. It felt righter.
[09:13:14] <OndraSter> I tried Altium
[09:13:20] <OndraSter> the mouse controls in Altium are weird for me :)
[09:13:22] <OndraSter> I am using Eagle
[09:13:50] <karlp> how long ago did you start using kicad CapnKernel?
[09:19:28] <CapnKernel> About two years ago
[09:19:48] <CapnKernel> Everybody has their favourite tool. I'm not suggesting anyone change
[09:19:58] <CapnKernel> But if you're just starting out, it's a good time to look at what's out there.
[09:20:21] <mrfrenzy> my favourite is proteus vsm with it's inbuilt analog+µC simulation
[09:20:25] <CapnKernel> Being able to hand-edit text-based schematic files and layouts is very underrated.
[09:21:08] <CapnKernel> The layout for this board was generated by a Python program: http://www.goodluckbuy.com/45-dgree-adaptor-with-12-esc-100a-connection-board-for-multicopter.html
[09:21:39] <karlp> CapnKernel: yeah, I tried kicad maybe 4-5 years ago and it was too much pain for me then, I'd like to reevaluate it now.
[09:21:47] <karlp> I really like the text nature of kicad,
[09:21:47] <CapnKernel> It is changing very fast
[09:21:58] <CapnKernel> It's come a long way
[09:21:58] <karlp> being able to generate footprints from datasheets instead of drawing them too.
[09:22:07] <karlp> yeah, I've been hearing it's a lot better.
[09:22:23] <CapnKernel> Our first question in #kicad is "what version you running", because 70% of the time, the bugs are already fixed
[09:22:34] <karlp> work uses eagle though, so if I want to get something made at work, it's easier to just stick with eagle.
[09:22:35] <CapnKernel> Lot of people running KiCad from 2010 and 2011. Old history
[09:22:40] <karlp> but it does grate on me.
[09:22:42] <CapnKernel> My point exactly.
[09:23:03] <karlp> well, I'm not interested in trying to convert work.
[09:23:06] <karlp> that's not my job :)
[09:23:14] <CapnKernel> Who is? Nobody.
[09:23:27] <karlp> they can if they want, I have enough other fish to fry
[09:24:03] <karlp> is the recommended version "latest git" or is there anything sort of stable?
[09:24:06] <CapnKernel> People lock themselves in
[09:24:13] <CapnKernel> There are stable versions.
[09:25:39] <CapnKernel> The version released in January is not bad.
[09:25:59] <karlp> but... not good?
[09:26:38] <OndraSter> so, there is some S/H circuitry inside xmega's DAC
[09:27:01] <OndraSter> how stable the result is when it is switching the channels, anybody knows? :)
[09:42:25] <CapnKernel> karlp: Good enough
[10:45:19] <cyanide> hello folks
[10:55:16] <CapnKernel> cyanide: How's it doing/
[10:55:19] <CapnKernel> ?
[11:31:21] <cyanide> CapnKernel, hello hello
[11:31:26] <cyanide> busy with my work lately
[11:31:34] <CapnKernel> Busy's good
[11:31:41] <cyanide> been building a couple of engines :)
[11:32:25] <CapnKernel> cool!\
[11:42:48] <exDM69> cyanide: what kind of engines?
[11:53:20] <OndraSter> engine that runs on unobtainium!
[11:53:22] <OndraSter> I love those
[12:11:12] <cyanid3> exDM69, racing engines
[12:11:23] <cyanid3> cars
[12:11:49] <cyanid3> back later, iracing time
[12:13:46] <exDM69> cyanid3: don't bother, iracing is down for maintenance
[12:14:17] <cyanid3> is it?
[12:14:21] <exDM69> it was supposed to be up by now but they postponed it by 90 minutes
[12:14:29] <exDM69> 2.30 edt is their estimate
[12:14:37] <cyanid3> aww
[12:14:48] <cyanid3> rfactor it is then
[12:14:53] <exDM69> yeah, I was just about to do some racing with my boss
[12:14:58] <exDM69> cyanid3: what kind of racing engines
[12:14:59] <exDM69> ?
[12:15:31] <cyanid3> touring cars. mainly 1.5L honda engines
[12:15:46] <cyanid3> natural aspiration only
[12:15:58] <exDM69> what race series?
[12:16:05] <cyanid3> indian touring cars championship
[12:16:07] <cyanid3> :)
[12:16:22] <exDM69> 1.5l naturally aspirated sounds a bit small for touring cards
[12:16:29] <exDM69> but I guess you can push them quite a lot
[12:16:40] <cyanid3> well we dont get a lot of powerful cars here
[12:16:49] <cyanid3> we take them upwards of 190 whp
[12:16:53] <cyanid3> at around 9000 rpm
[12:16:58] <exDM69> that's quite nice
[12:17:15] <cyanid3> the rules say the block, head and tranny casing have to be from cars that are sold in the country
[12:17:19] <cyanid3> the internals are free
[12:17:47] <cyanid3> displacement is restricted to 2.4l. and minimum weight in kg is displacement-in-cc/1.75
[12:18:07] <cyanid3> so our small engines allow us to keep our cars under 860 kg
[12:18:11] <exDM69> how much does your car weigh?
[12:18:30] <cyanid3> about 859-865 kg at the end of a race
[12:18:59] <cyanid3> the races last for about 30 minutes to an hour
[12:19:05] <exDM69> cool
[12:19:12] <cyanid3> and we are going to have a race on the f1 track in new delhi this year
[12:19:27] <cyanid3> that race is going to be an engine breaker
[12:19:32] <cyanid3> with the long straights
[12:19:41] <exDM69> yeah, it's got long straights even for an f1 track
[12:20:01] <karlp> what's iracing? (I'd look, but it's down you say ;)
[12:20:02] <exDM69> like all the new f1 tracks
[12:20:10] <exDM69> karlp: website is up, game is down
[12:20:24] <CapnKernel> tragedy: Had to take out the sound system to save weight! Oh noez!
[12:20:25] <karlp> so, a game :)
[12:20:34] <exDM69> karlp: it's a subscription based racing simulator that has an order of magnitude bigger dev budget than anyone else
[12:20:43] <cyanid3> anyways, ill go and have some fun with rfactor since im free :)
[12:20:45] <exDM69> laser scanned tracks, etc
[12:20:50] <cyanid3> later exDM69, CapnKernel
[12:20:54] <exDM69> o/
[12:21:16] <exDM69> karlp: I guess you can call it a game, but there are very little game-like elements
[12:38:57] <vsync_> I'll rather play RBR than any racetrack sims
[12:38:59] <vsync_> they're boring
[12:39:46] <vsync_> Too bad no company is interested in updating rbr's gfx. Otherwise the game-engine is still the best rally sim out there
[13:05:50] <exDM69> vsync_: RBR is excellent, too bad no-one is doing a new game based on the old engine
[13:06:29] <exDM69> vsync_: but rallying and track racing are two different disciplines. no reason to compare them
[13:06:38] <exDM69> you're entitled to your opinion, of course
[13:56:39] <candrian> hello if want check my new finished project, it is a vfd iv-11 tube clock http://www.candrian.gr/index.php/iv-11-vfd-tube-clock-final-design/
[13:57:33] <specing> I have a want to if
[14:06:27] <vsync_> candrian quite nice :)
[14:06:40] <candrian> vsync_ thanks ;)
[14:07:06] <vsync_> plus very refreshing to see some projects actually *done* instead of all the bench-engineering going on here
[14:07:42] <vsync_> exDM69 yeah, they are ofc :
[14:07:44] <vsync_> ):)
[14:08:24] <vsync_> ffs, should clean up this keyboard. it has solder and whatnot...
[14:08:51] <candrian> heh
[14:10:08] <asteve> hah
[14:10:17] <asteve> bench engineering! that's the best way to describe what i've done
[14:10:31] <asteve> in fact, i have a bench with 4 unfinished projects on it
[14:19:13] <candrian> in my opinion the best is the bench to be clear. If you have a lot of unfinished projects spread around probably you will never finish any of them :P
[14:20:16] <CapnKernel> Mmm, project pipeline :-)
[14:20:35] <CapnKernel> If you have to wait for parts, you need to work a pipeline
[14:20:56] <candrian> yes if you have to wait ok.. but if there is no reason
[14:32:00] <vsync_> mmh... well i seem to find myself always being short on caps for some god damn reason
[14:32:03] <OndraSter> candrian, impressive work :)
[14:32:16] <OndraSter> I have here too much desoldered caps from all kinds of boards thinking "when I will be prototyping"
[14:32:20] <OndraSter> the problem is, I am prototyping in Eagle :P
[14:32:31] <OndraSter> and it works on the first itme
[14:32:32] <OndraSter> time*
[14:32:34] <OndraSter> so far
[14:32:43] <candrian> OndraSter thank you :)
[14:32:46] <OndraSter> (unless I change my mind about how it should be working)
[14:32:50] <OndraSter> then I bodge!
[14:33:05] <OndraSter> guys, FACEBOOK IS DOWN! THE APOCALYPSE IS HERE! :D
[14:33:11] <OndraSter> (at least it doesn't work for me)
[14:33:21] <candrian> it works for me
[14:33:34] <candrian> maybe we connect on different server
[14:33:48] <candrian> depending on the country
[14:34:20] <OndraSter> anyway, my final result: xmega32d4+dual DAC+USB-UART converter is being replaced with xmega256a3u+ADR5401 (2.5V precision reference) :)
[14:34:29] <OndraSter> saving money!
[14:34:35] <OndraSter> I do not care about saving space tbh
[14:34:40] <OndraSter> it won't fit to 100x50 anyway
[14:35:56] <Steffanx> No usb xmega?
[14:36:24] <Steffanx> ah nvm :p
[14:36:31] <Steffanx> I'm sleepy
[14:36:49] <OndraSter> :)
[14:37:02] <OndraSter> the $5.10 for that xmega256a3u looks like error
[14:37:05] <Steffanx> How 2 IC's can't find it 5x5cm?
[14:37:05] <OndraSter> TQFP version is $7
[14:38:00] <OndraSter> because there are another 2 opamps, 2 voltage regulators, input transformer
[14:38:02] <OndraSter> few more ICs
[14:38:04] <OndraSter> a lot of passives
[14:38:05] <OndraSter> etc :)
[14:38:11] <CapnKernel> And some cool PCB art :-)
[14:38:14] <OndraSter> yep
[14:38:16] <OndraSter> cool PCB art!
[14:39:17] <specing> OndraSter: You can get an ARM for 5$ ;)
[14:39:38] <OndraSter> well $.1 won't kill me
[14:39:49] <specing> Btw
[14:39:54] <OndraSter> plus I have AVR Dragon
[14:39:56] <OndraSter> not ARMaggedon
[14:40:02] <specing> http://www.marvell.com/embedded-processors/armada-xp/
[14:40:12] <OndraSter> (seriously, Atmel, make ARM version of Dragon and name it ARMaggedon!)
[14:40:23] <Steffanx> Quad core, bga stuff specing ?
[14:40:50] <specing> Steffanx: Finaly something usable as a desktop processor
[14:40:55] <OndraSter> hehe
[14:41:00] <Steffanx> 'use
[14:41:00] <Steffanx> able'
[14:41:01] <specing> The only problem is the lack of a GPU
[14:41:02] <OndraSter> Rasperry pi*e
[14:41:11] <OndraSter> damn what constant is bigger than PI?
[14:41:32] <Steffanx> 2*PI
[14:41:45] <OndraSter> ..
[14:41:59] <OndraSter> some known constant though
[14:42:12] <Steffanx> Tau .. the new pi :)
[14:42:20] <OndraSter> :D
[14:49:38] <OndraSter> hmm can ADC B use AREF for ADC A?
[14:49:39] <OndraSter> it seems so
[14:53:17] <OndraSter> why our heads do not work in binary? It would be awesome, you could go as far aso 1024 just on your hands :)
[14:54:38] <Steffanx> For yourself to use binary only
[14:54:42] <Steffanx> *force
[14:55:17] <Steffanx> That reminds me i still have to write an app that clears my clipboard when i try to copy less that x characters :)
[15:00:07] <specing> I have a question.
[15:00:16] <specing> It goes like this:
[15:00:38] <OndraSter> nothing?
[15:00:39] <OndraSter> ?D
[15:00:42] <OndraSter> :D
[15:01:00] <specing> Are there relays, that consume power only when switching between states?
[15:01:32] <mrfrenzy> yes
[15:01:36] <mrfrenzy> bistable relays
[15:02:42] <specing> example? (link?, part?)
[15:02:44] <Tom_itx> you just give them a pulse to change state?
[15:02:54] <Tom_itx> gawd you're lazy
[15:03:07] <mrfrenzy> try google it ;)
[15:03:39] <CapnKernel> Tom_itx: You're funny
[15:03:51] <Tom_itx> http://search.digikey.com/us/en/cat/relays/power-over-2-amps/1049447?k=bistable%20relay
[15:06:16] <specing> Tom_itx: I love ya :)
[15:06:23] <Tom_itx> i know
[15:07:16] <Tom_itx> http://in.mouser.com/ProductDetail/TE-Connectivity-Axicom/V23079E1201B301/?qs=g%252bEszo6zu8NipeRLw85%2fKrMhiEfEK9FT
[15:07:27] <Tom_itx> 5v coil
[15:07:39] <Tom_itx> probably still need a drive transistor for it
[15:08:08] <ThersiT> Is there an interrupt or something to let me know if something new has arrived at fgets?
[15:11:39] <ThersiT> I want to only run my switch function to look for a valid command if something new has come in. Because right now my for loop just stops and waits until fgets gets something before it reaches the end and starts over.
[15:12:08] <Tom_itx> you're running fgets on an avr!
[15:12:10] <Tom_itx> ?
[15:12:20] <ThersiT> that bad?
[15:12:33] <Tom_itx> not if it works
[15:14:01] <specing> If it is stupid, but it works, then it ain't stupid
[15:14:20] <specing> (Not saying using fgets is)
[15:14:30] <ThersiT> It has been working, what's wrong with using fgets??
[15:14:31] <asteve> i think it can still be stupid if it works
[15:14:57] <Tom_itx> specing, not sure about that... a dude in robotics has been trying to make a metal foundry using a microwave oven
[15:14:57] <asteve> to get to 2 from 1 you could add 1000, divide by 50 mod 3 etc.
[15:15:08] <asteve> and eventually end up with 2, but the method was quite stupid
[15:16:10] <Tom_itx> he's still logged in there so at least he hasn't blown his head off yet
[15:16:38] <ThersiT> I'm just building off the stdio_demo from avr-libc's website.
[15:17:58] <OndraSter> CapnKernel, I wish 4 layer boards weren't that expensive (compared to 2 layered ones) :)
[15:18:11] <OndraSter> dedicated power planes = awesome
[15:19:27] <ThersiT> Cool, thanks guys.
[15:19:47] <CapnKernel> OndraSter: Indeed
[15:23:20] <specing> OndraSter: I prefer 2-3 airwires instead
[15:23:32] <OndraSter> instead of what?
[15:23:34] <OndraSter> 4 layers?
[15:23:35] <specing> Actually, I had no need for more than 1-layer board
[15:23:42] <OndraSter> lucky you! :D
[15:23:45] <specing> :D
[15:23:55] <specing> I did spend a week routing, though
[15:24:00] <specing> ;P
[15:24:06] <OndraSter> I had to do criss-crossing with 2 layers... now I ripped it all apart with new MCU and I am going to re-wire it all with new MCU
[15:24:10] <OndraSter> that has more pins available on each side
[15:24:23] <OndraSter> and re-align the pin functions so nothing from the right side goes to the left etc
[15:24:37] <OndraSter> (lucky me, atxmega having almost every communication peripheral on every side :P)
[15:24:43] <OndraSter> just ADCs and DAC are on one side
[15:38:00] <Essobi> Sup
[15:38:06] <Steffanx> Tha sky
[15:38:44] <Essobi> Steffanx: .... :D
[15:38:46] <Essobi> :P
[15:47:00] <IndianaRonaldo> anyone worked on a quadrotor before?
[15:48:14] <specing> IndianaRonaldo: Yes, but I don't think he is still alive
[15:48:53] <gkwhc> hi, might anyone have experience with DMA on ARMs? i am trying to play a mono, 8bit wav file. i can hear the audio at first, but its eventually drowned by white noise
[15:49:27] <IndianaRonaldo> LOL...:D
[15:49:43] <specing> IndianaRonaldo: I'm not kidding
[15:50:06] <IndianaRonaldo> alright .. what do you mean?
[15:50:18] <specing> I haven't heard from him ever since he got the motors
[15:50:45] <specing> And AFAIK they were in kilowatt range
[15:51:51] <IndianaRonaldo> hmm...that explains it
[15:51:55] <IndianaRonaldo> :P
[16:27:32] <gkwhc> instead of seeing a waveform on the scope, i am seeing something like http://www.aidthoughts.org/wp-content/uploads/2010/07/study-for-White-Noise.jpg
[16:32:54] <Essobi> gkwhc: Did you make sure the wav was in the right format?
[16:37:22] <OndraSter> gkwhc, white noise... are you sure you are not watching TV?
[16:38:08] <gkwhc1> sorry my computer froze, i didnt catch what was said
[16:40:24] <OndraSter> gkwhc, white noise... are you sure you are not watching TV?
[16:40:27] <OndraSter> :)
[16:40:44] <OndraSter> change the volts/div, change the coupling to DC
[16:41:05] <OndraSter> hard to guess
[16:42:06] <gkwhc1> yep ive tried all of those
[16:43:27] <gkwhc1> the scope still displays a ton of dots
[16:46:34] <gkwhc1> would having 8 bit of data going into a 12 bit DAC register, right justified (so the top 4 MSBs are 0) cause this problem?
[16:49:55] <OndraSter> noo
[16:49:58] <OndraSter> no
[16:50:51] <gkwhc1> most of the time, data should be left justified
[20:03:52] <WormFood> CapnKernel, I couldn't get eagle to use my library, and instead of investing more time into it, I decided to switch to kicad...works great. My schematics started taking place within 15 minutes from the 1st time I opened it (including the time to download the library I need)
[20:05:47] <learningc> What speed should I use to drill fr4 pcbs?
[20:08:32] <Casper> learningc: I use max speed on my press drill
[20:08:44] <Casper> same when I was using a dremel
[20:09:36] <learningc> Casper: your drill press can run to 35K rpm?
[20:10:09] <Casper> no
[20:10:13] <Casper> 3100rpm
[20:10:22] <WormFood> I have a 3.5CC 2-cycle motor that will turn 31k rpm (1.5 BHP at 28.5k rpm)
[20:11:04] <learningc> Casper: is that speed fast enough for fr4 pcbs?
[20:11:50] <learningc> Or is there an optimal speed to drill them?
[20:13:11] <Casper> the optimal speed is as fast as possible, while being slow enought to not overheat the bit
[20:13:56] <Casper> the faster it spin, the faster it go, and the less pressure you would be tempted to put on those tiny bits
[20:14:07] <Casper> and pressure cause them to snap
[20:44:11] <Tom_itx> learningc, a high speed spindle with carbide bits
[20:44:19] <Tom_itx> 10k rpm or so
[21:03:30] <Casper> damn they broke the roll golf again....
[21:03:36] <Casper> and they JUST resurected it...
[21:12:11] <learningc> Casper, Tom_itx : ok, thanks
[21:13:41] <learningc> Tom_itx: would 35Krpm be overkill for these carbide bits?
[21:13:44] <Casper> now, for this precious tip, what will be the payment method? paypal? visa? mastercard?
[21:13:45] <Casper> :D
[21:14:36] <Tom_itx> learningc, it's all about feed and speed
[21:14:56] <Tom_itx> i'm sure there are limits
[21:15:03] <learningc> Casper: what about discovery? :P
[21:15:11] <Tom_itx> higher speed will let you feed faster
[21:15:25] <Casper> no problem! you can do discovery via paypal I guess
[21:15:33] <learningc> Tom_itx: so 35k from my dremel on these bits would be fine?
[21:15:48] <Tom_itx> no
[21:16:00] <Tom_itx> the dremel vibrates too much
[21:16:08] <Tom_itx> not a good 'spindle'
[21:16:15] <learningc> ah ok
[21:16:42] <Casper> as I said learningc, the danger of high speed is mainly to overheat the bit. pcb are thin enought that you go throught easilly and quickly, and the time it take to go to the next hole leave enought time to cool down almost completly
[21:17:04] <Casper> learningc: basically, test it. if the bit shake too much, it's too fast
[21:17:14] <learningc> Tom_itx: what speed would you recommend with a dremel?
[21:17:57] <Casper> learningc: go half speed or so, there won'T be a big difference in speed anyway
[21:19:32] <learningc> casper, Tom_itx : what the smallest drill bit size do you guys use?
[21:20:34] <Tom_itx> depends on the hole i need to drill
[21:21:00] <Casper> I have some #60, and I have some #70 that I didn't used yet
[21:21:11] <Casper> #60 is a bit big for IC..
[21:21:42] <Tom_itx> #60..68 or so
[21:22:30] <learningc> ah ok
[21:23:11] <learningc> I'm thinking to use #87
[21:23:43] <Casper> and the biggest I used? 1½" and some 3" holesaw
[21:24:25] <learningc> not interested in big size for pcb :P
[21:26:00] <learningc> those carbide bits, are they easy to break?
[21:26:10] <Tom_itx> yup
[21:26:34] <learningc> more than high speed steel?
[21:26:35] <Tom_itx> there is no #87
[21:26:57] <Tom_itx> yup
[21:27:03] <Tom_itx> brittle
[21:27:33] <Tom_itx> snap it in half like a 13yr old
[21:29:08] <learningc> Tom_itx: http://www.ebay.ca/itm/Ten-Solid-Carbide-Drill-Bits-87-010-0-25mm-/160732540798?pt=LH_DefaultDomain_0&hash=item256c67ef7e
[21:30:50] <learningc> Casper: oil filter for cars, you can buy them at canadian tire? or they won't sell to you?
[21:30:53] <Tom_itx> 87 is too small to be useful
[21:31:05] <Casper> learningc: also walmart
[21:31:14] <learningc> Tom_itx: I'm looking to do some vias
[21:31:29] <learningc> Casper: are they expensive?
[21:31:38] <Casper> learningc: just go in the car section, they are all there, on the shelf
[21:31:45] <Casper> mine is 8$
[21:32:07] <learningc> Casper: are they standard for each brand of cars?
[21:32:10] <Casper> but of course they vary widelly in price, but seems to be 8-15$ for most iirc
[21:32:24] <Casper> there is about 200-300 models on the shelf
[21:32:38] <Casper> hence the need to use the manual there to find which one your car need
[21:33:13] <learningc> Casper: do they have that many varieties even at walmart?
[21:33:29] <Casper> close
[21:33:31] <Tom_itx> http://www.ebay.ca/itm/NEW-20-73-0-0240-PCB-carbide-drill-bits-/120906906080?pt=LH_DefaultDomain_0&hash=item1c269cf9e0
[21:33:53] <learningc> Casper: I want to try changing oil for the first time
[21:34:06] <Tom_itx> http://www.ebay.ca/itm/100-Piece-Solid-Carbide-Drill-Bit-Set-Unbeatable-Selection-D8-CNC-PCB-/160791997643?pt=LH_DefaultDomain_0&hash=item256ff32ccb
[21:34:15] <Casper> learningc: it's not hard, but can be messy
[21:34:18] <Tom_itx> learningc don't strip out the drain plug
[21:34:44] <Casper> learningc: expect the oil to flow horisontally, not drip down :d
[21:35:02] <Tom_itx> be sure to do it on a windy day too
[21:35:40] <Casper> suggestion: protect the area, expect half a litter to leak, you never know :D
[21:36:12] <Tom_itx> learningc that last link looks like a nice set
[21:36:14] <Casper> walmart sell a nice tub for oil change
[21:36:39] <Casper> it's a big "bottle" where you can screw the funel on one corner
[21:37:55] <Casper> learningc: be extremelly carefull to NOT crossthread the filter, else you basically kill the engine
[21:38:15] <Casper> as it will never seal correctly after that
[21:38:54] <learningc> Tom_itx: I'm thinking to do 10 mils vias, then use 30 awg wire as long as the thickness of the pcb then solder the ends both side to make my via, what do you think?
[21:40:27] <Tom_itx> http://tom-itx.dyndns.org:81/~webpage/misc_stuff/hood1.jpg
[21:40:28] <Tom_itx> http://tom-itx.dyndns.org:81/~webpage/misc_stuff/hood2.jpg
[21:40:38] <Tom_itx> i did vias under the chip on that one
[21:41:20] <Tom_itx> http://tom-itx.dyndns.org:81/~webpage/toaster_oven/oven_control1.jpg
[21:41:22] <Tom_itx> sorta like that
[21:41:29] <learningc> Casper: yes, I usually reverse the direction when I screw something until the threads match then screw in thye right direction
[21:42:19] <nevyn> also put a smear of oil on the filter seal before screwing it on.
[21:42:19] <Casper> on my car, the oil filter is on the top of the engine
[21:42:54] <Landon> I think I'm in the wrong channel... #cars-n-drillbits-ns-such
[21:43:03] <Tom_itx> naw
[21:43:05] <learningc> Casper: you are lucky
[21:43:11] <Tom_itx> the drill bits are for making pcboards
[21:43:33] <Tom_itx> for the avr you see sitting to the side of it :D
[21:43:53] <Casper> learningc: btw, the ceiling: http://img690.imageshack.us/img690/1898/img3261cr.jpg
[21:52:17] <Casper> wb
[21:55:22] <learningc> thanks
[21:56:22] <learningc> last message I got was at 22:33, anything else after I got disconnected?
[21:57:32] <Tom_itx> zlog
[22:23:03] <learningc> Casper: what is under your ceiling?
[22:24:19] <Casper> the brown thing? a work bench kind of thing
[22:25:05] <CapnKernel> WormFood: Delighted to hear about your KiCad win. There are quite a few non-obvious things about it, so I'd suggest grabbing a tutorial off the net and working your way through it.
[22:25:10] <CapnKernel> If you get stuck, there's always #kicad.
[22:25:41] <CapnKernel> The built-in schematic symbols are shite, and it doesn't have a large range of footprints, but
[22:26:03] <CapnKernel> In the topic of #kicad you'll find some sites for searching for symbols/footprints, and it's very easy (and fun) to make your own.
[23:47:38] <Grievre> are all AVR chips offered in both DIP and surface mount?
[23:53:05] <tech2077> no
[23:53:40] <tech2077> only AVR8 afaik have DIP packages
[23:54:04] <tech2077> and some AVR8s don't have DIPS
[23:55:37] <Casper> Grievre: dip is up to 40 pins
[23:55:49] <Casper> there is no bigger dip for avr...
[23:56:02] <Casper> which limit the avr possible