#avr | Logs for 2012-12-31

Back
[07:02:10] <OndraSter_> yay
[07:02:10] <OndraSter_> http://www.youtube.com/watch?v=Y1o2ST03O8I&feature=youtu.be
[07:02:17] <OndraSter_> they hacked RFID including czech opencard
[07:02:29] <OndraSter_> and they are using ATXmega to immitate it :P
[08:45:52] <Tom_itx> !seen abcminiuser
[08:45:54] <tobbor> abcminiuser was last seen in #avr on Dec 19 22:25 2012
[08:49:26] <OndraSter_> yeah.
[08:54:54] <jadew> OndraSter_, it's pretty cool what those guys did
[08:55:21] <jadew> I was particularly impressed by how they figured out which one is a 1 and which one is a 0, based on the power consumption
[08:55:26] <BigHugeDog> !seen BigHugeDog
[08:55:27] <tobbor> bighugedog is here
[08:55:43] <BigHugeDog> !help
[08:56:52] <BigHugeDog> enegery analysis is good way
[10:08:46] <Tom_L> http://www2.electronicproducts.com/Caltech_develops_microsensor_accelerometer-article-oljh01a_jan2013-html.aspx
[10:49:41] <Lionhearted> has anyone opened an avr ?
[11:07:35] <creep> Lionhearted<< no, but i have some pic laying around i could open them up
[11:09:48] <Lionhearted> can u send some ?
[11:13:59] <Lionhearted> creep, are that pics available ?
[11:14:36] <creep> well yes they still make them, but i dont use pic
[11:14:52] <Lionhearted> i ment
[11:14:56] <Lionhearted> sry
[11:15:03] <Lionhearted> i need to see an open avr uc
[11:15:12] <Lionhearted> cuz i want to probe it
[11:15:17] <creep> haha no i was meaning pic microcontrollers
[11:15:23] <Lionhearted> jhahhhaha
[11:15:28] <Lionhearted> who is using pic ?
[11:20:26] <creep> Lionhearted<< i doubt you can "probe" it if you can't open it up
[11:20:53] <creep> avrs have some security
[11:21:49] <Lionhearted> creep, http://mirror.fem-net.de/CCC/29C3/mp4-h264-HQ/ , ctrl f probing
[11:36:49] <creep> Lionhearted<< yeah interesting, and posible, needle probing and extracting stuff, but recent atmels have nice protection features
[11:38:20] <creep> i was peeking in some security papers from atmel recently
[12:30:54] <Tom_itx> besides if you open it, it voids the warranty
[12:32:11] <Lt_Lemming> http://www.google.com.au/zeitgeist/2012/resolutions/
[12:32:33] <Tom_itx> no Sgt anymore?
[12:34:17] <Lt_Lemming> heh
[12:34:37] <Lt_Lemming> Tom_itx http://pastebin.com/00cTegmK
[12:37:08] <Tom_itx> :)
[12:39:11] <Lt_Lemming> yeah
[12:39:20] <Lt_Lemming> been that since then
[12:39:33] <Lt_Lemming> I thought that was worth a permanent promotion
[12:39:49] <Lt_Lemming> and now when theos in ##electronics salutes me I don't have to yell at him :-P
[12:40:18] <Tom_itx> i avoid electronics
[12:40:21] <theos> :>
[12:40:30] <Lt_Lemming> oh, he's in here as well :-P
[12:40:33] <theos> lo Lt_Lemming :P
[12:40:36] <Lt_Lemming> I don't mind it
[12:40:38] <Lt_Lemming> lo theos
[12:43:57] * Lt_Lemming dresses down theos for not saluting a superior officer
[12:44:12] <theos> :/
[12:44:22] <Lt_Lemming> heh
[12:44:26] <Lt_Lemming> you can't win :-P
[12:45:12] <Tom_itx> who was that one dude that left for the greek army couple years back?
[12:45:15] <Tom_itx> i forget now
[12:45:32] <Tom_itx> that wasn't you was it theos?
[12:45:34] <Lt_Lemming> err, fuck knows
[12:45:47] <Lt_Lemming> that doesn't really ring any bells for me
[12:46:06] <theos> not me Tom_itx
[12:46:08] <Lt_Lemming> I do have logs going back quite a few years though
[12:46:37] * theos calls Ms Mell
[12:47:16] <Lt_Lemming> jesus dude, that was like 3 years ago
[12:47:29] <Lt_Lemming> get over it already
[12:47:30] <Tom_itx> theatro
[12:57:03] <Lt_Lemming> ftp://ftp.tyan.com/img_mobo/S8812_2D_S.jpg <--- not ITX, but do want soo much
[13:03:32] <foo303> How can one control high power devices with AVR? (a 240 volt ac servo for instance)
[13:04:24] <foo303> I'm sorry if this sounds completely retarded but my background is in programming coming to electronics. Just a head's up
[13:08:53] <Lt_Lemming> foo303, depends on the device
[13:09:20] <Lt_Lemming> if you are trying to switch something on and off, a solid state relay is a good place to start
[13:09:42] <Lt_Lemming> but if you are trying to control speed/direction/position of an AC servo, you will need a suitable servo controller
[13:10:51] <foo303> hmm. I had a bad experience in the past having people buy me stepper controllers from Freddy Hacker's basement and then I realized that allegro was king in the stepper controller market :p
[13:11:17] <foo303> So, any known vendors for servo controllers and the like?
[13:12:58] <foo303> I guess a relay and some sort of programmable voltage regulator(if such a thing exists, I bet) would be the basic idea
[13:39:59] <Lt_Lemming> foo303, do you have a spec sheet available for the motor?
[13:40:18] <Lt_Lemming> something tells me you are misunderstanding the difference between an AC and DC servo
[14:24:09] <Tom_itx> foo303, gecko is king of the stepper controller market
[14:24:26] * Lt_Lemming nods
[14:24:42] <Lt_Lemming> but not for controlling 240v ac servo's
[14:24:44] <Lt_Lemming> which is what he mentioned first
[14:25:04] <Tom_itx> no
[14:49:46] <Essobi> Happy New years eve.
[20:51:35] <foo303> Lt_Lemming: Sorry, I was away. I was providing an example from another type of motor :p I never controlled high power servos before, but I controlled steppers, they've their own power supply and the driver takes, for control, output from my microcontroller. But for servos, I have no idea how it works. So, I was asking about a good
[20:51:58] <foo303> well known driver for servos, or one that you've used
[20:52:39] <foo303> (Thanks in advance and sorry for the late response.)
[20:55:09] <jadew> happy new year guys
[20:55:38] <Tom_itx> another 3 to go
[20:56:02] <jadew> nice, I'm already back from the party
[20:56:08] <jadew> it sucked
[21:09:12] <foo303> http://www.geckodrive.com/geckodrive-brush-dc-drives/g320x.html this looks cool
[21:09:38] <foo303> I never heard of gecko before today. damnit. Thanks, Tom_itx.
[21:11:28] <Tom_itx> heh
[21:12:15] <jadew> hey, where the hell can I find useful info on a particular xmega chip
[21:12:22] <jadew> the datasheet has nothing useful
[21:12:27] <Tom_itx> such as?
[21:12:37] <jadew> xmega16d4
[21:12:51] <jadew> I can't find info on registers and things like that
[21:13:13] <jadew> like... how to enable ADC
[21:13:31] <jadew> and what all the options are (like it's mentioned for all the mega avrs)
[21:14:25] <jadew> features and overview, that's all I get in the datasheet for most stuff
[21:14:53] <Tom_itx> http://www.atmel.com/devices/atxmega16d4.aspx?tab=documents
[21:15:02] <foo303> is the filesize 4.1 mb, jadew? :p
[21:15:03] <jadew> then there's a lot of application notes, but none specifies everything
[21:15:11] <jadew> foo303, yeah
[21:15:23] <jadew> Tom_itx, yeah, but I can't find technical data in there
[21:15:35] <jadew> only how some dude at atmel decided to do something
[21:15:36] <Tom_itx> Atmel AVR127: Understanding ADC parameters
[21:16:21] <jadew> Tom_itx, no registers presented there
[21:16:43] <jadew> wtf is this mess
[21:16:59] <Tom_itx> OndraSter would probably know
[21:18:02] <Tom_itx> AVR1300: Using the XMEGA ADC
[21:20:04] <jadew> holly crap, if that's the kind of shit I have to read I won't even bother with them
[21:20:13] <Tom_itx> haha
[21:20:38] <Tom_itx> i have 10 books on the old motorola 68332
[21:20:54] <Tom_itx> you weenie
[21:21:20] <jadew> I bet you can make 10 big books out of the info there :P
[21:21:43] <Tom_itx> 1301 1302 cover dac and comparator
[21:21:49] <jadew> the problem is that, for some reason, they decided to give up on the clear and descriptive way of presenting registers
[21:22:06] <Tom_itx> it's for grownups
[21:22:21] <jadew> and instead they say stuff like this: Set the MUX Positive Input and MUX Negative Input bitfields (MUXPOS and
[21:22:21] <jadew> MUXNEG) in Channel 0 (CH0MUXCTRL) to 0x00 and 0x03 respectively.
[21:22:21] <jadew> • Set the Free Run bit (FREERUN) in Control Register B (CTRLB) to enable free
[21:22:21] <jadew> running mode.
[21:22:26] <jadew> it's not, it's just stupid
[21:22:48] <Tom_itx> i pretty much agree until i see more of the normal docs we're used to
[21:23:10] <jadew> yeah, I sure hope they're somewhere
[21:23:23] <Tom_itx> maybe there are too many possibilities to write it that way on those
[21:23:29] <Tom_itx> i know they have alot more registers
[21:23:45] <Horologium> http://www.atmel.com/Images/doc8210.pdf full of register descriptions.
[21:23:50] <Horologium> just like regular AVR docs.
[21:23:52] <jadew> yeah, but what's the use of having tons of registers if you're obfuscating them all
[21:24:24] <jadew> yey
[21:24:26] <jadew> that looks normal!
[21:24:32] <jadew> where did you get it from?
[21:24:35] <Tom_itx> Horologium saves the day!
[21:24:54] <Horologium> first doc on the page that Tom_itx posted.
[21:25:11] <jadew> lol
[21:25:18] <Tom_itx> heh
[21:25:22] <Horologium> Atmel AVR XMEGA D Manual Manual
[21:25:29] <jadew> well, in all honesty tho, the other one says ATxmega128D4/64D4/32D4/16D4 Complete
[21:25:35] <Tom_itx> i assumed he'd already looked at that one
[21:25:40] <Horologium> don't read everything you believe.
[21:26:15] <jadew> well, the second one said complete and for most the other ones, usually the "non complete one" was just a short presentation
[21:26:18] <jadew> stupid naming
[21:26:32] <Horologium> page 245
[21:26:47] <Horologium> I also looked at the number of pages.
[21:26:58] <Horologium> complete was 136
[21:27:01] <jadew> yeah, I can find my way around that datasheet now
[21:27:06] <jadew> yep, noticed that now
[21:27:07] <Horologium> manual manual was 330
[21:27:08] <Tom_itx> i always look at the size
[21:27:16] <jadew> they were pretty close
[21:27:23] <jadew> one is 4.8 the other one 4.1
[21:27:35] <Tom_itx> page size
[21:27:40] <jadew> I guess the "complete" one must have more pictures
[21:28:30] <Horologium> it has the physical diagrams which are rather largish.
[21:28:39] <Horologium> like, physical package.
[21:29:16] <Horologium> anyhow, am up waaay past my bedtime
[21:29:17] <jadew> it just seems like a mistake to call that one "Complete"
[21:29:19] <Horologium> so, nighters all.
[21:29:21] <jadew> night
[21:29:27] <Tom_itx> gnite
[22:56:26] <MrCurious> anyone know of a bot loader for mega8u2 that will let me flash it via usb?
[23:00:19] <MrCurious> nm, found the answer. not sure if its the best answer, but its an answer :) https://github.com/a1ronzo/SparkFun-USBtoSerial