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  • [00:21:07] <nomel> rcn-ee: i did not actually...but why would that be necessary?
  • [00:22:04] <rcn-ee> There's an 8 second sample time period in the pmic...
  • [00:22:12] <nomel> wha?
  • [00:22:32] <nomel> no.
  • [00:22:42] <nomel> if i power from anything else, it's instantaneous, like any sane button would be.
  • [00:22:50] <nomel> it's only when i power from the 5v.
  • [00:23:16] <nomel> if i power from usb and vdd_5v, and do a poweroff
  • [00:23:23] <nomel> the button wont work until i disconnect the vdd_5v.
  • [00:23:28] <nomel> leaving the usb 5v is fine.
  • [00:24:20] <nomel> i think the 8s you're talking about is for long push events
  • [00:24:23] <nomel> that reset the pmic.
  • [00:25:56] <rcn-ee> which is tied to the power button..
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  • [00:31:09] <nomel> the 8 second push should never have to be used in normal circumstances.
  • [00:31:23] <nomel> everything functions as would be expected until you power the board from a cape, using vdd_5v.
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  • [00:31:48] <nomel> any other power source, the power button is instantaneous. it's *absurd* to suggest i need to wait 8 seconds before a power button should function.
  • [00:32:09] <nomel> if that is the case, then something is not being set up correctly.
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  • [00:43:51] <SpeedEvil> nomel: Or it's designed for other uses.
  • [00:43:59] <SpeedEvil> nomel: where that is sensible.
  • [00:44:18] <SpeedEvil> Sometimes the chosen hardware limits functionality
  • [00:44:40] <SpeedEvil> To find out which - you just need to read the PMIC datasheet and understand its functionality and the schematic.
  • [00:44:45] <SpeedEvil> It's only a thousand pages or so.
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  • [00:46:44] <Tenkawa> frege: any luck?
  • [00:47:11] <frege> hey Tenkawa I gave that up, installed packages manually and it wasn't that bad
  • [00:47:15] <frege> it was easy
  • [00:47:18] <frege> :)
  • [00:47:18] <Tenkawa> heheh
  • [00:47:20] <frege> now I'm coding
  • [00:47:27] <Tenkawa> cool
  • [00:47:36] <frege> I got a beardboard
  • [00:47:42] <Tenkawa> beard?
  • [00:47:46] <frege> yeah
  • [00:47:52] <Tenkawa> not familiar with that one
  • [00:48:05] <frege> it's just a blank board
  • [00:48:08] <frege> for test
  • [00:48:37] <Tenkawa> ah
  • [00:48:41] <SpeedEvil> Breadboard.
  • [00:48:44] <Tenkawa> oh bread
  • [00:48:52] <Tenkawa> breadboard
  • [00:48:54] <Tenkawa> heheh
  • [00:48:57] <frege> http://www.adafruit.com/index.php?main_page=popup_image_additional&pID=64&pic=2&products_image_large_additional=images/large/64_LRG.jpg
  • [00:49:18] <frege> oh fuck sorry bad spelling
  • [00:49:19] <frege> ahh
  • [00:49:22] <Tenkawa> heehee
  • [00:49:45] <frege> ok just turned on this LED
  • [00:49:51] <frege> it looks good
  • [00:49:56] <Tenkawa> i remember building breadboard circuits 30 years ago
  • [00:50:01] <Tenkawa> heh
  • [00:50:06] <frege> no I'm gonna play around with infrared photodiode see if I can read from it
  • [00:50:21] <Tenkawa> good luck
  • [00:50:26] <frege> Tenkawa: have you ever read from a photodiode ?
  • [00:50:31] <Tenkawa> no
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  • [01:00:14] <nomel> SpeedEvil: yeah. I think my solution will be to have a one shot on the cape that glitches the 5v power. :)
  • [01:00:30] <nomel> cause that's way easier than reading
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  • [01:08:08] <sheldonw> hrmm, anyone know how to install node-directfb for node.js?
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  • [01:32:02] <frege> I have a photodiode connected to ground and P8_16
  • [01:32:05] <frege> when I do GPIO.input("P8_16")
  • [01:32:10] <frege> I keep getting 0
  • [01:32:22] <frege> no matter if there is light in that range or if there isn't
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  • [01:41:00] <sheldonw> whoop... these little el'cheapo 1.8 TFT lcd's put out nicely! kind of impressed. heh
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  • [01:47:24] <frege> guys I can't read the value from my infrared detector
  • [01:47:26] <frege> why?
  • [01:47:43] <frege> oh fuck!!!!!!!!!!!!!!
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  • [01:50:57] <Korra> pretty vague question, but what would be a good way to get a beaglebone talking to an industrial plc?
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  • [01:53:04] <Korra> just spoke to an automation vendor and they were reluctant about rs232 because apparently its going to hold up the controller and they want to go opc which sounds overkill
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  • [01:54:35] <Fercho> hi
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  • [01:58:41] <Fercho> is possible to obtain an output signal of 10 MHz in the beagleboneblack by an application in ANDROID?
  • [01:59:48] <frege> what's a pullup for reading from a sensor?
  • [01:59:53] <frege> I don't know this term 'pullup'
  • [02:00:11] <sheldonw> it's a built-in resistor
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  • [02:01:12] <Korra> Fercho I think if you're gonna get 10 MHz you're gonna get it with the PRU
  • [02:01:17] <Korra> if at all
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  • [02:01:59] <gui_> frege, pullup resistors are resistors connected to a high level so that the input will be at high level if there is nothing connected to it, rather than be a floating value
  • [02:02:52] <gui_> pulldown, on the other hand, pulls it to a low level/GND
  • [02:03:20] <Fercho> korra PRU? that's it??
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  • [02:04:16] <Korra> http://elinux.org/ECE497_BeagleBone_PRU
  • [02:04:56] <Fercho> okok gracias :)
  • [02:05:29] <Fercho> I will read
  • [02:05:31] <Korra> there's a good page describing it out there but I can't find it off the top of my head
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  • [02:06:29] <Korra> the general idea is its a 200MHz processing unit and all instructions have deterministic fixed timings
  • [02:07:45] <Korra> which would mean your loop has to be 20 instructions or less to sample at 10MHz
  • [02:07:49] <Korra> no idea if that's doable
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  • [02:12:39] <sheldonw> anyone get directfb going in ubuntu 13.04? It's installed and working, but no providers can be loaded, like images, fonts, etc. any ideas?
  • [02:13:01] <frege> does Vss stand for ground?
  • [02:13:18] <frege> gui_: oh thanks!
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  • [02:13:55] <gui_> Vss is mostly used for Voltage of the source [of a transistor]
  • [02:14:06] <gui_> as well as Vdd is for voltage of the drain
  • [02:15:05] <gui_> that's where the letters come from, but in most cases you can assume (not saying that you should) that Vss = 0 = gnd and Vdd = high level (3V3, 5V, etc)
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  • [02:19:06] <bnz> hi all, i need a little help? i am trying to work out the junction temp of a AM3559 processor in a beagle bone black. i have a thermocouple pressed on to the case of the CPU and i get a reading of 92'c can someone here help me to workout Tj.. i have looked at the TI website and the formula' they provide don't really make a lot of sense when punch in the numbers i have collected.. i get a Tj of 92.75'c which just doesn't seem right?. i was e
  • [02:19:06] <bnz> xpecting a much higher value for Tj.
  • [02:19:30] <bnz> does anyone know of a online calculator i could use to double check my calculations?
  • [02:20:35] <bnz> the formula i have found is Tj = Tc + (power * ?jt)
  • [02:20:38] <frege> gui_: I made this (the pin that I'm reading values from)(P8_11)--------Collector-(Photodiode)-Emitter--------1kohm------Ground
  • [02:20:52] <frege> is that gonna work?
  • [02:21:16] <gui_> i don't know what you're doing :P
  • [02:21:45] <frege> gui_: I'm trying to read from a photodiode
  • [02:21:51] <frege> infrared
  • [02:21:59] <frege> and I have an emitter infront of it
  • [02:22:19] <gui_> i've never worked with one, but it might be very simple
  • [02:22:25] <bnz> if i say the power of the CPU is 2.5 watts (5v @ 500ma) i get a very small difference in case temp to calculated junction temps. which does not change as the processor gets hotter.. the result from the formula is alway .75'c above the case temp? i would have expected it to vary a little with case temps?
  • [02:22:46] * biot (~bert@2a01:7b8:2006:ea81::fce2) has joined #beagle
  • [02:22:50] <gui_> google may provide tens of differents circuits you could use
  • [02:23:07] <Fercho> korra esto afecta el funcionamiento del sistema operativo??
  • [02:23:14] <Fercho> peron
  • [02:23:21] <Fercho> this affects the functioning of the operating system?
  • [02:25:33] <Fercho> forget it
  • [02:25:36] <Fercho> korra
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  • [02:28:57] <Fercho> gracias Korra
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  • [02:38:52] <bnz> if anyone is interested in making their beagle bone black less prone to going up in smoke when used with dodgy USB hubs and such you should consider replacing R159 with a 47kohm resistor.. circuitco or who ever designed the beagle bone black has NOT followed TI instructions for protecting the usb_DC detect line that goes into the CPU on pin P15.. circuit co has installed a ZERO ohm resistor in R159.. TI instructions say you need a 1.2kohm resis
  • [02:38:52] <bnz> tor and a zenner diode to ground. to protect the CPU from people providing too high a voltage to the usb port.. like when a dumb arse user plugs in a 12v supply to a crappy hub that has no regulation.. we have had about 10 units that have died because some of our customers have used crappy usb hubs..
  • [02:39:46] <bnz> when you feed 12v into the usb socket (even for a split second) like when using an unregulated psi this will make the magic smoke come out of the CPU and it will then have a hole in the top of the CPU...
  • [02:40:30] <bnz> we got one of the customers hubs and took it to bits and found that the processor in the hub had been blown and that there was no regulator between the psi and the usb sockets..
  • [02:41:08] <bnz> while in normal operation this is fine.. but if the users are too dumb to use the right psu with the hub then more than 5v can hit the cpu and kill it...
  • [02:41:30] <bnz> i have just modified 100+ units to protect them from these numb arse users?.
  • [02:42:12] <bnz> and i have another 400 units to go :(
  • [02:42:38] * Defiant (erik@e177099211.adsl.alicedsl.de) Quit (Ping timeout: 245 seconds)
  • [02:42:39] <bnz> oh i hate dealing with 0402 components? they suck? would much prefer to be playing with grains of sand??
  • [02:42:54] <SpeedEvil> oops
  • [02:43:22] <SpeedEvil> I would see if you can complain to them about that
  • [02:43:28] <bnz> yeah its a bit of an oops?
  • [02:43:39] <SpeedEvil> That is a serious bug - and very, very very cheap to fix in new units
  • [02:43:58] <bnz> well we cannot as we got no warranty with our units we purchased as we had them modify the boards slightly...
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  • [02:44:38] <SpeedEvil> If it's shared with stock - I would still contact them.
  • [02:44:56] <bnz> yeah if you really want to? you can actually fit a zenner between R159 and a capacitor that is near by.. you could fit a 0805 sized zenner on there for the complete solution...
  • [02:45:19] <SpeedEvil> Also - have you considered a set of SMD tweezers?
  • [02:45:55] <bnz> oh yeah i will be sending an email to them.. as its on ALL beagle bone blacks.. it came about from when they dropped the usb hub chip which used to provide the protection...
  • [02:46:38] <SpeedEvil> Is it violating the published specs - or just not being as good as it could be?
  • [02:46:50] <bnz> oh SMD re-work is no problem for me? i have some very nice and fine tweezers.. i have a hot air rework station and multiple solder irons.. the only thing that would make this easier is a robot...
  • [02:47:00] <SpeedEvil> Minions!
  • [02:47:28] <bnz> the TI app note says this should be protected with the resistor and zenner or transil.
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  • [02:48:02] <SpeedEvil> Yeah - but does the released BBB spec say you can put x volts on that pin
  • [02:48:08] <bnz> oh yeah we are looking at out sourcing this to our product manufacturer.. they have a hand soldering robot that is suited to this sort of thing.
  • [02:48:19] <bnz> oh that i am not too sure of...
  • [02:48:31] * bnz goes to RTFM again :)
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  • [02:52:44] <bnz> hmm can't actually find the usual max/min electrical specs page that just about every data sheet has?
  • [02:53:19] <bnz> also there is no specific part on a page that says the maximum voltage to go into the usb port is 5v...
  • [02:55:08] <bnz> time to find the am3559 data sheet...
  • [02:57:06] <bnz> ok the CPU can actually take unto 5.25v on the USBx_Vbus pins.. so they are not actually breaking the limits? its only when you have a usb line that provides more than 5v that you have a problem...
  • [02:58:17] <bnz> from some destructive testing i did here.. I blew up four boards finding the limit of this pin with the zero ohm resistor and anything over 10.2v will pop the chip..
  • [03:00:13] <thurgood> that's pretty bad, but why would anyone hook that much power up to the hub even?
  • [03:05:04] <frege> can someone help me please with this: http://i.imgur.com/D0zxPUX.png
  • [03:05:13] <frege> I keep getting 0 as the value of P8_16
  • [03:06:02] <frege> I have a 2.2kohm pull-up resistor between ground and the emitter side of my photodiode
  • [03:06:29] <frege> anybody?
  • [03:07:41] <thurgood> doesn't PD0 prevent it from traveling that direction?
  • [03:14:10] <frege> thurgood: prevent what?
  • [03:14:17] <frege> should it be the other way around?
  • [03:14:25] <gui_> frege, did you draw that diagram?
  • [03:14:45] <frege> gui_: yeah
  • [03:14:49] <gui_> PD0 is in the wrong direction
  • [03:14:51] <frege> gui_: why?
  • [03:15:01] <gui_> the cathod is the negative pole
  • [03:15:15] <thurgood> diodes are unidirectional
  • [03:15:21] <frege> ok on my board the shorter leg of my photodiode is connected to the 2.2kohm resistance
  • [03:15:44] <gui_> the "arrow" always point to the lower voltage (gnd)
  • [03:15:45] <bnz> <thurgood> its either users that don't know what they are doing .. i.e. using a 12v psu on a 5v hub? or they have really crappy hardware that they are using...
  • [03:16:13] <bnz> gui_ except when trying to catch back emf :)
  • [03:16:20] <frege> gui_: no difference, I switched it around
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  • [03:16:30] <bnz> <thurgood> where is PD0?
  • [03:16:39] <gui_> and you're still missing a pullup resistor
  • [03:16:46] <gui_> or does the BBB have one?
  • [03:16:49] <thurgood> bnz... in frege's diagram
  • [03:17:04] <bnz> oh sorry.. not related to me :)
  • [03:17:21] <frege> gui_: I thought that 2.2kohm is the pullup resistor
  • [03:17:25] <bnz> PDO is a photo diode..
  • [03:17:56] <gui_> frege, the pullup must be connected to the input pin and 3.3V
  • [03:18:00] <bnz> the 2.2k is connected to gnd?
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  • [03:18:30] <bnz> i think you are missing a pull up and a pull down in that circuit..
  • [03:18:40] <frege> gui_: so I also need another 2.2kohm between pd0 and input pin?
  • [03:18:57] <bnz> i think you need the 2.2k to go to 3.3v and 10k-100k going from P8_16 to gnd..
  • [03:19:34] * Er0x (~quassel@46.17.57.19) Quit (Quit: No Ping reply in 180 seconds.)
  • [03:19:46] <gui_> yes, i agree with bnz
  • [03:19:49] <frege> ok I'm getting confused here, when you say 3.3v you mean Gnd?
  • [03:19:52] <bnz> when the photodiode see's no IR the pull down keeps the pin in a known state.. when the diode see's some IR light the 2.2k will set you GPIO pin to high..
  • [03:20:05] <bnz> frege.. no 3.3v = VCC
  • [03:20:19] <gui_> pull up* bnz
  • [03:20:25] <frege> I see no VCC :(
  • [03:20:40] <bnz> yeah vcc is missing from that circuit...
  • [03:20:44] <frege> where is VCC?
  • [03:20:44] <thurgood> ... exactly
  • [03:20:46] <gui_> gnd is 0 volts
  • [03:20:57] <gui_> vcc is you "high voltage"
  • [03:21:03] <gui_> usually 3.3 or 5 volts
  • [03:21:04] <bnz> look at pins 3&4 of P9 these are 3.3v
  • [03:21:05] <frege> you mean VDD?
  • [03:21:06] <frege> http://stuffwemade.net/post/beaglebone-pinout
  • [03:21:10] <gui_> BBB handles 3.3V
  • [03:21:13] <frege> I'm looking at this there is no VCC
  • [03:21:25] <frege> there is VDD though
  • [03:21:26] <bnz> yeah VDD or VCC almost the same thing.
  • [03:21:28] <gui_> P9_3 and P9_4
  • [03:21:31] <frege> ah okay
  • [03:21:35] <bnz> gui_ correct..
  • [03:21:41] <frege> so I'm gonna redraw this
  • [03:21:58] <gui_> it has to look like a T
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  • [03:22:29] <gui_> 3v3 - 2k2 - T - PD - gnd
  • [03:22:42] <gui_> and from the T branch, 10k - input
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  • [03:26:49] <frege> gui_: http://i.imgur.com/tqJgVCE.png bnz
  • [03:26:52] <frege> how's this now?
  • [03:27:16] <frege> why should P8_16 be connected to the Ground?
  • [03:27:42] <gui_> frege http://flockdraw.com/3kta8x
  • [03:28:10] <frege> I've been looking for a place like this for two days
  • [03:28:24] <frege> oh it's just drawing
  • [03:28:48] <frege> gui_: this site is better http://www.twiddla.com/1385925 ..
  • [03:28:51] <thurgood> you've go ground and power directly connected in this one
  • [03:29:08] <Fercho> s
  • [03:29:44] <frege> gui_: oh that's so fucking awesome! I think I understand why it should be like that
  • [03:30:12] <gui_> think of the diode as a switch
  • [03:30:23] <frege> gui_: the current will flow into the photodiode, hit the ground and tries to come back?
  • [03:30:29] <gui_> when open, the input is driven high
  • [03:30:45] <frege> right
  • [03:30:48] <gui_> when closed, there's a lower resistance path to ground
  • [03:30:54] <bnz> the wire that you have between 8_16 and gnu should have a 10k resistor in it..
  • [03:31:06] <frege> gui_: but it doesn't make sense 2kohm to be there?
  • [03:31:44] <frege> I thought the resistor on 8_16 has to be lighter than the other resistor
  • [03:31:56] <gui_> yes it does, because when the switch is closed, you can't short-circuit 3.3V and gnd
  • [03:32:01] <gui_> you need a resistor
  • [03:32:46] <frege> what does short-circuit mean?
  • [03:32:54] <gui_> oops, my bad
  • [03:32:57] <gui_> i got the labels wrong
  • [03:33:11] <frege> aaaah so my logic was correct?
  • [03:33:12] <bnz> oh dang i broke.. it
  • [03:33:42] <frege> we are redirecting the current to p8_16 by putting a lighter resistor there?
  • [03:33:56] <frege> nice
  • [03:34:06] <frege> let me try it on my board :)
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  • [03:38:48] <bnz> try this http://flockdraw.com/cvumwa
  • [03:38:56] <frege> nice!!!!!!!!!!!!!!!!!!!!!!!
  • [03:38:57] <bnz> i do like that website? its nice...
  • [03:38:58] <frege> worked
  • [03:39:00] <frege> holly shit
  • [03:39:24] <frege> yeah it's simple
  • [03:39:29] <frege> but now it's always 1 !!
  • [03:39:29] <gui_> hahahahahaha
  • [03:39:45] <gui_> i'd never expect a "holly shit"
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  • [03:40:15] <thurgood> short circuit by the way means that the short path resistance wise goes from ground to power.. basically frying stuff
  • [03:40:18] <gui_> get a bright light close to the photo diode
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  • [03:40:54] <frege> gui_: then it's supposed to become 0?
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  • [03:41:00] <gui_> yes
  • [03:41:11] <gui_> i mean, I'm not sure
  • [03:41:35] <gui_> if it's always one, it is either always getting to much light or never getting enough
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  • [03:41:56] <gui_> to, try a bright light, or turn off your ambient light for awhile
  • [03:42:15] <frege> oh no!
  • [03:42:31] <frege> I pulled the pd0 out and it remained 1
  • [03:42:37] <frege> there is something funky going on
  • [03:42:42] <frege> let me double check my wiring
  • [03:42:53] <bnz> no thats expected?..
  • [03:43:11] <bnz> the PD0 will only pull the line low when there is IR light...
  • [03:43:18] <bnz> normally it will sit high...
  • [03:43:31] <bnz> at least on the circuit i drew.. ?.
  • [03:43:39] <frege> yours is different
  • [03:43:42] <bnz> oh k
  • [03:43:51] <frege> the resistor is between ground and pd0!
  • [03:43:52] <bnz> then yeah you might have a problem
  • [03:43:53] <gui_> it should be 1 without PD
  • [03:44:08] <frege> ok let me try again
  • [03:44:48] <frege> I got a 10k lux light therapy device here
  • [03:44:57] <frege> it must have enough infrared to turn this on
  • [03:45:02] * johanhenselmans_ (~johanhens@pretsense.xs4all.nl) has joined #beagle
  • [03:45:23] <bnz> if you need a IR filter you can try exposed 35mm film? it works really well as a IR filter
  • [03:45:32] <gui_> get your tv remote
  • [03:45:39] <frege> !!!!!!!!!!!!!!!!!
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  • [03:45:40] <frege> shit
  • [03:45:43] <frege> it's working!
  • [03:45:48] <frege> holy shit!!!
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  • [03:46:09] <frege> I forgot to switch the photodiode
  • [03:46:13] <thurgood> some cell phone cameras have ir sensors/emitters too
  • [03:46:13] <gui_> why the surprise? it's science, bitches!
  • [03:46:23] <bnz> hahahah
  • [03:46:37] <frege> this is so fucking awesome!
  • [03:46:45] <frege> it's all magic
  • [03:46:45] <gui_> nerd detected
  • [03:46:49] <gui_> hahahah
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  • [03:47:09] <bnz> agh it may be magic but its well documented magic...
  • [03:47:22] <frege> so now when there is IR, it stays 0, when I cover it then it becomes 1
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  • [03:47:35] <frege> how can I get signal from it now?
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  • [03:47:42] <bnz> thats good?
  • [03:47:53] <gui_> well.. there's still no reasonable explanation for gravity, so yes, it could be well documented magic
  • [03:48:13] <bnz> you write some code that says if (PD0 == 0) do something? like count the pulses or add them into a buffer so you can read a stream...
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  • [03:48:52] <bnz> i can't help you too much with the beagle code itself only a rough frame work...
  • [03:49:12] <frege> pulses/
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  • [03:49:18] <frege> what do you mean by pulses?
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  • [03:49:20] <frege> oh I see
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  • [03:49:34] <gui_> frege, do you know Python?
  • [03:49:37] <bnz> oh pulses as in a burst of on then off..
  • [03:49:38] <frege> so I read from this photodiode 100 times in a sec
  • [03:49:44] <frege> yeah I'm really good in python
  • [03:49:53] <gui_> so look for Adafruit BBIO
  • [03:49:53] <frege> gui_: it's my job; writing python
  • [03:50:01] <frege> gui_: I'm using that right now
  • [03:50:05] <gui_> cool
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  • [03:50:35] <bnz> it all depends on the frequency of the data stream that is in the IR light? think baud rate...
  • [03:50:36] <frege> I think I got the idea how to read it on and off and make a stream
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  • [03:51:02] <frege> yeah it just needs a func of time to become a real signal
  • [03:51:18] <frege> ok one more question
  • [03:51:27] <frege> how do I make this more sensitive?
  • [03:51:38] <frege> should I drop 2.2kohm to 1kohm?
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  • [03:51:45] <frege> then it let the current flow in easier?
  • [03:51:53] <frege> man electronic is fun!!!!!!!!!!!
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  • [03:52:47] <gui_> electronic is shocking
  • [03:52:54] * johanhenselmans_ is now known as johanhenselmans
  • [03:52:58] <frege> I'm gonna try 630ohm
  • [03:52:58] <gui_> #badjokegui
  • [03:53:12] * _darknighte_ is now known as darknighte
  • [03:53:23] <ds2> gui: wanna learn what a jacobs ladder is? :D
  • [03:53:41] <gui_> i think i've heard of it
  • [03:53:45] <gui_> is it bad joke?
  • [03:54:29] <frege> it's still dull
  • [03:54:46] <frege> I want to make it sensitive enough so it can capture 850nm
  • [03:55:03] <gui_> frege
  • [03:55:05] <frege> this sensor is a really capable one; 400 to 1000nm
  • [03:55:09] <frege> yeah gui_ ?
  • [03:55:14] <gui_> you should tune the ration of the resistors
  • [03:55:27] <gui_> but remember not to keep the absolute values too low
  • [03:55:29] <frege> ratio?
  • [03:55:32] <gui_> or you could fry your bone
  • [03:55:36] <gui_> R1/R2
  • [03:55:39] <bnz> <ds2> jacobs ladder is great.. think frankenstein movies..
  • [03:55:39] <gui_> 10/2.2
  • [03:55:46] <frege> ahhh shit gotcha
  • [03:56:00] <bnz> maybe change the 10k to 100k
  • [03:56:06] <frege> ok
  • [03:56:13] <bnz> that will mean less current is needed to change the state of the pin..
  • [03:56:14] <frege> bnz: how about the other one?
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  • [03:56:56] <gui_> do you have a voltmeter?
  • [03:56:57] <bnz> that one is sorta there for protection of the diode.. it limits the amount of current going thru the diode.. you need to look at the data sheet and see how much current it can handle..
  • [03:57:03] <frege> gui_: I don't :(
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  • [03:57:29] <bnz> oh dear my kernel dev just killed his beagle bone black? :( and now i have to fix it...
  • [03:57:42] <bnz> he changed the contents of the eeprom and now it don't boot?
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  • [03:58:00] <bnz> gonna have to hang a another beagle bone off that to re-write the eeprom?
  • [03:58:01] <gui_> bnz, that sounds so familiar
  • [03:58:04] <gui_> but so familiar...
  • [03:58:04] <ds2> here, hold this ;)
  • [03:58:11] <frege> now it stays 0 all the time
  • [03:58:23] <gui_> frege, too sensitive
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  • [03:58:34] <bnz> yeah maybe not 100k maybe 47k?
  • [03:58:35] <ds2> frege: what kind of sensors are you playing with?
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  • [03:58:46] <frege> ir
  • [03:59:04] <ds2> what kind of IR sensor?
  • [03:59:09] <ds2> phototransistor?
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  • [04:00:19] <gui_> photodiode
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  • [04:03:12] <frege> nice
  • [04:03:18] <frege> now it's sensitive to my IR LED
  • [04:03:41] <frege> gonna go running on threadmile, guys I appreciate it SO MUCH tonight was amazing
  • [04:04:10] <frege> it was my first circuit, and the good part was that I actually got a feel of how things work in elect.
  • [04:04:14] <frege> thanks!
  • [04:04:22] <gui_> you're welcome
  • [04:05:16] <bnz> no problem happy to help...
  • [04:08:52] <bnz> i gotta go.. need to concentrate on the rescue of this BBB
  • [04:08:54] <bnz> later all....
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  • [04:44:47] <amanuel_> is the an ultrasound imaging cape?
  • [04:45:03] * amanuel_ is now known as amanuel
  • [04:45:59] <sheldonw> heh... nice idea! ;)
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  • [04:52:10] <Korra> ultrasound..imaging?
  • [04:52:52] <prpplague> Korra: yea the cape comes with a free pair of x-ray glasses as well
  • [04:53:04] <prpplague> Korra: order now and you get some sea monkeys as well
  • [04:53:11] <Korra> sounds like just the thing to take to the beach
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  • [04:54:00] <amanuel> yes Korra
  • [04:54:49] <amanuel> I was looking at this and see a lot of unneeded parts http://www.ti.com/solution/ultrasound_system
  • [04:54:55] * arti (~arti@122.166.11.13) Quit (Read error: Connection reset by peer)
  • [04:55:21] <amanuel> if there was just the DSP available that would be something to work with
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  • [04:55:59] <amanuel> this http://www.ti.com/solution/ultrasound_system_portable
  • [04:56:08] <Korra> neat
  • [04:56:11] <Korra> what are you gonna go with it?
  • [04:56:56] <amanuel> body fat measurements, if safe look at baby
  • [04:57:17] <amanuel> it really depends on the data
  • [04:57:24] <amanuel> possible
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  • [05:01:51] <amanuel> another thought if there is no cape is to integrate with this device http://intelametrix.com/FullSite/index.html
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  • [05:05:14] <prpplague> amanuel: just don't sell it in the states gotta pay the medical device tax, hehe
  • [05:05:45] <amanuel> no plans to enter that nest of pain ;)
  • [05:06:26] <Korra> or just don't market it as a medical device lolol
  • [05:06:43] <amanuel> Korra: nice ;)
  • [05:07:07] <prpplague> Korra: hard to do that now
  • [05:07:28] <prpplague> Korra: virtually anything that can be construed as for a medical use goes under the microscope for the tax
  • [05:08:42] * thuttu77_2 is now known as thuttu77
  • [05:10:27] <Korra> oh america and their wonderful healthcare system
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  • [05:14:59] <Korra> anything know anything about PLCs here?
  • [05:15:07] <Korra> anyone* even
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  • [06:15:34] <sheldonw> any directfb users on the bbb out there?! ;)
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  • [09:26:13] <vmayoral> angstrom-distribution.org is still down, right?
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  • [09:29:04] <das> downorisitjusteme.com
  • [09:29:24] <das> http://downorisitjustme.com/ *
  • [09:29:59] <woglinde> vmayoral as florian yesterday told he needs a way to reactivate it
  • [09:30:12] <woglinde> it is no primariy for him
  • [09:30:34] <vmayoral> i see , thank you
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  • [09:50:04] <Freddie_> HI All
  • [09:50:25] <Freddie_> I've always installed ubuntu on beaglebone white this way :
  • [09:50:46] <Freddie_> cd to decompressed .xz image i.e. :
  • [09:50:51] <Freddie_> cd ubuntu-13.04-console-armhf-2013-09-26
  • [09:50:58] <Freddie_> then:
  • [09:51:12] <Freddie_> sudo ./setup_sdcard.sh --mmc /dev/sdX --uboot bone
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  • [09:52:18] <Freddie_> from today, sdcard are created correctly but beagle hung at boot with three leds on
  • [09:53:24] <Freddie_> I tried other machines to burn sd and 3 or 4 different ubuntu version , as well different sdcards and beaglebone
  • [09:53:47] <KotH> what does your serial console tell you?
  • [09:54:11] <Freddie_> Koth , no ckecked yet
  • [09:54:24] <KotH> that's the first thing you should check ;)
  • [09:55:22] <Freddie_> you're right , as well as install.sh do some http check on external websites , i wonder if something is changed.....
  • [09:56:17] * KotH doesnt like scripts that call home
  • [09:56:23] <KotH> especially if they need to be run as root
  • [09:57:12] <Freddie_> sorry... I mean setup_sdcard.sh checks something on iternet...
  • [09:57:32] <Freddie_> I'll try to setup serial console now...
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  • [10:07:52] * KotH still doesnt like scripts that call home
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  • [10:11:03] <dob_> Hello
  • [10:12:53] * vmayoral (~vmayoral@nat-psv.sssup.it) has joined #beagle
  • [10:13:23] <dob_> I have s short question. Currently I am using a raspberry and cubieboard 2. With both i have the problem that GPU rendering is not possible with chromium. Do you know if the BeagleBone Black supports GPU rendering with chromium under linux?
  • [10:14:08] <av500> some day, yes
  • [10:14:09] <av500> maybe
  • [10:14:14] <Korra> tldr no
  • [10:14:15] <av500> if TI fixes that SGX driver
  • [10:14:28] <av500> and if it fits whatever chromium needs
  • [10:14:33] <av500> which I have no idea
  • [10:14:34] <av500> about
  • [10:14:45] <av500> dob_: why does it not work on rpi?
  • [10:14:53] <av500> is GLES not enough?
  • [10:15:16] <dob_> Oh on the pi i am not sure. Only the performance was very poor.
  • [10:15:28] <dob_> On the cubie i am sure that the performance was very bad
  • [10:15:32] <av500> the pi has a good GPU
  • [10:15:38] <av500> thats about the only good thing on it
  • [10:15:39] * mrpackethead (~mrpacketh@147.200.109.203.static.cust.vf.net.nz) Quit (Remote host closed the connection)
  • [10:15:53] <dob_> but x is not accelerated, right?
  • [10:16:01] <av500> ah X
  • [10:16:03] <Korra> right
  • [10:16:15] <av500> no idea, chrome on android runs nicely on a GPU :)
  • [10:16:15] <Korra> is that still a WIP or did they just give up?
  • [10:17:02] * tema (~tema@ppp89-110-17-236.pppoe.avangarddsl.ru) Quit (Ping timeout: 264 seconds)
  • [10:17:34] <dob_> yeah android is not a problem at all, but unusuable in my case.
  • [10:18:40] <av500> give in to the dark side
  • [10:19:20] <KotH> dob_: dont go to av500's dark side, he has only cookies. come to our dark side, we have chocolate!
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  • [10:20:19] <dob_> :-)
  • [10:20:37] * ogra_ thinks KotH doesnt read enough G+ ... av500 has even VLC chocolate
  • [10:21:27] <KotH> ogra_: yes, they didnt invite me to berlin
  • [10:21:37] <ogra_> evil
  • [10:21:38] <KotH> ogra_: but dont worry, i will get my own personal box of vlchocolate
  • [10:21:48] <Korra> is $500+bom a reasonable cost for one-off pcb prototypes?
  • [10:21:53] <KotH> and of libavchocolate
  • [10:22:06] <KotH> Korra: for just the pcb or including assembly?
  • [10:22:07] <ogra_> lol
  • [10:22:12] <Korra> assembly
  • [10:22:37] <Korra> last time I had to do just pcb it was something like 20 bucks for 3
  • [10:22:43] <KotH> Korra: how many components? how big is the board? how many layers? minimum feature size on PCB?
  • [10:23:02] <KotH> Korra: how many trough hole solder points?
  • [10:23:09] <KotH> Korra: oh.. and how many boards?
  • [10:23:25] <Korra> 1 layer ~15 components, beagle cape sized, 1 board. I'm just looking for a rough estimate, no design yet
  • [10:23:51] <Korra> 500 sounds reasonable to me
  • [10:24:10] <KotH> yes, sounds reasonable
  • [10:24:24] <KotH> NRE is probably 400, the assembly itself 100
  • [10:25:31] <KotH> Korra: for a single board with only 15 components, i would solder it myself
  • [10:25:34] * fzombie (fzombie@pdpc/supporter/student/GPLGeek) Quit (Read error: Connection reset by peer)
  • [10:25:42] <KotH> Korra: it's not worth the effort giving it to an assembly company
  • [10:25:52] * fzombie (KiloJuliet@pdpc/supporter/student/GPLGeek) has joined #beagle
  • [10:26:18] <KotH> Korra: the PCB itself will probably cost somewheere in the region of 20-40
  • [10:26:42] <av500> unless its 15 fine pitch BGA parts
  • [10:26:49] <KotH> yes
  • [10:27:05] <KotH> but those wouldnt be on a single layer pcb ;)
  • [10:27:52] <Korra> ok thanks
  • [10:27:53] <KotH> av500: the nice thing about BGA is, that you can solder them yourself if you have a good eye and a hot air gun from leister
  • [10:28:02] <Korra> sounds like a reasonable price
  • [10:29:30] <Korra> and typically with the BOM, they have stock on hand and source what's missing or do you provide the components?
  • [10:29:53] <KotH> R and C's are usually on stock (unless you need special R/C)
  • [10:30:07] <KotH> 0815 diodes and transistors are on stock too
  • [10:30:14] <KotH> everythig else: assume they have to buy them
  • [10:30:27] <Korra> that's fair
  • [10:30:33] <KotH> most assembly companies have a list of on stock items available to their customers
  • [10:36:17] * Anguel (~Anguel@p4FF7E7F7.dip0.t-ipconnect.de) has joined #beagle
  • [10:37:21] <Anguel> hi! is there a way to get rid of these compiler warnings: 'va_list' has changed in GCC 4.4 ? afaik they can be safely ignored
  • [10:37:37] <KotH> Anguel: please read the gcc documentation
  • [10:38:01] <Anguel> KotH: thanks :)
  • [10:39:27] <Freddie_> How can I change runlevel at boot in Angstrom distro ?? ( as well inittab is not present ) ?? Thanks
  • [10:39:59] <KotH> Freddie_: the systemd documentation is your friend
  • [10:41:13] <Freddie_> I didn't know it was using systemd....thanks
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  • [12:05:29] <trunkler> hi
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  • [12:19:44] <av500> http://olimex.wordpress.com/2013/11/14/a10-olinuxino-lime-eur-30-open-source-hardware-linux-sbc-first-prototypes/
  • [12:24:47] <Korra> that looks good
  • [12:25:35] <ogra_> apart from being an A10 ... yeah
  • [12:30:30] <KotH> what's wrong with an a10?
  • [12:32:01] <ogra_> that you have to jump through hoops when building a kernel ... it uses allwinners own idea of devicetree
  • [12:32:26] <KotH> it could be worse
  • [12:32:29] <ogra_> beyond that its just another ARM indeed
  • [12:32:33] <KotH> it could use acpi
  • [12:33:12] <ogra_> and BadBIOS :)
  • [12:34:00] <KotH> BadBIOS affects all arm devices too!
  • [12:34:16] <KotH> at least as soon as you connect a microphone to it
  • [12:34:32] <ogra_> hmm ?
  • [12:34:40] * mythos (~mythos@unaffiliated/mythos) Quit (Ping timeout: 264 seconds)
  • [12:34:47] <ogra_> how would it replicate itself even if the mic recieved something
  • [12:35:22] <Korra> subliminal message
  • [12:36:17] <ogra_> while the principle might work on ARM too i dont see how it would overwrite the ROM
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  • [12:53:15] <PeterJW> Hi. Anyone here who can answer me some questions regarding 1-Wire with Beaglebone Black?
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  • [12:57:28] <PeterJW> I just started to connect DS18B20 temperature sensors to the BBB. I used a device tree overlay found on www, It works with one and more DS18B20 on a single pin. But I need to connect 25+ sensors, and the max slaves is limited to 10. Which possibilities I have to connect more than 10?
  • [12:59:25] <KotH> does the hardware protocol support that many sensors?
  • [12:59:51] <tkoskine> Use other pins also or put some small microcontroller between BBB pin and the temperature sensors?
  • [13:00:47] <PeterJW> Yes, I want to use other pins. My favorites was to use one pin per Sensor. But how can i configure the BBB to use several pins for 1-Wire?
  • [13:01:07] <KotH> PeterJW: with the DT file :)
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  • [13:01:33] <PeterJW> Yes, I think that should be the way, but no clue how to do it
  • [13:01:38] <KotH> but i dont know what the 1wire uses as system, wether it toggles an gpio or uses an uart
  • [13:01:56] <KotH> well, read the DT, understand what it does, read the TRM and the datasheet of the sensor :)
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  • [13:02:17] <PeterJW> It's just a gpio pin, that is toggled with a fixed timing
  • [13:02:39] <KotH> well, then there is no problem
  • [13:02:50] <KotH> uh.. wait.. gpio and fixed timing?
  • [13:02:56] <KotH> done in userspace?
  • [13:03:08] <KotH> how fast is that 1wire?
  • [13:03:19] <Vaizki> not fast
  • [13:03:28] <jensk> Hi all. Several Beagle support pages say "To learn more about Cloud9 IDE and to synchronize the software on your board with cloud-hosted services, see www.c9.io." except I can't find any info on this on the c9 site. Anybody knows how?
  • [13:03:57] <Vaizki> anyway it's actually a kernel module
  • [13:05:31] <Vaizki> it's w1-gpio module
  • [13:05:33] <PeterJW> Yes, there is a kernel driver for 1-Wire. I don??''
  • [13:06:04] <PeterJW> But how can I configure the w1-gpio module to work on serveral pins?
  • [13:06:10] <KotH> jensk: ask again when jkrinder is around
  • [13:06:17] <KotH> jensk: he is the cloud9 guy, afaik
  • [13:06:22] <jensk> thanks
  • [13:06:46] <Vaizki> hmmmmmm my 1wire DTBO has disappeared from my BBB??
  • [13:06:49] <Vaizki> wth...
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  • [13:07:25] <KotH> jensk: he is on mordor time
  • [13:08:25] <thurgood> by that he means us central
  • [13:08:30] <Vaizki> ok what the hell is going on here
  • [13:08:38] <Vaizki> where is my DTBO
  • [13:08:41] <KotH> Vaizki: gremlins
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  • [13:08:55] <KotH> vmayoral: ciao
  • [13:09:07] <KotH> vmayoral: did you get wpa working?
  • [13:09:24] <vmayoral> KotH: ciao :)
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  • [13:10:24] <Vaizki> argh they are in /usr/lib/firmware my DTBOs
  • [13:10:47] * russell-1 is now known as russell--
  • [13:11:19] <Vaizki> and why is my bone_capemgr now .6 and no longer .8??
  • [13:11:27] <Vaizki> gngngh
  • [13:12:13] <vmayoral> KotH: i gave it a try but i didn't manage to connect. There's something that i'm missing so i'm trying to reach the wpa_supplicant guys to ask.
  • [13:12:34] <KotH> ok
  • [13:12:41] <vmayoral> KotH: i referred them to https://gist.github.com/vmayoral/7484098, hope it's me doing something wrong
  • [13:13:17] <Vaizki> [40819.040683] of_resolve: Could not find symbol 'ocp'
  • [13:13:20] <Vaizki> ayeegh :D
  • [13:13:25] <Vaizki> everything is broken :D
  • [13:13:33] <Vaizki> ok I'm going back to 3.8 for a while
  • [13:13:39] <PeterJW> what do you try?
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  • [13:13:57] <Vaizki> my 1 wire is also broken
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  • [13:14:10] <Vaizki> kernel is refusing to load my DTBOs
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  • [13:14:53] <Vaizki> must be 3.12 kernel symbols change
  • [13:15:21] <Vaizki> so I'm installing linux-am33x-legacy which provides a 3.8 kernel
  • [13:15:34] <Vaizki> I don't have time to debug this until next week
  • [13:17:06] <Vaizki> if you play around with DTB files from the internet, you might want to consider staying with 3.8 also PeterJW
  • [13:17:34] <PeterJW> But I have no clue on what to change in the DTB files. Any hints?
  • [13:17:34] <Vaizki> anyway.. are you using the BB-1W dtbo?
  • [13:17:41] <PeterJW> yes
  • [13:17:44] <Vaizki> pastebin it
  • [13:20:53] <PeterJW> http://pastebin.com/XrkngUqX
  • [13:21:46] <KotH> vmayoral: i never configured wpa_supplicant directly, so i dont know
  • [13:22:00] <KotH> vmayoral: and i have not taht much knoweldge about wifi
  • [13:22:44] <Vaizki> PeterJW: do you understand the line: 0x34 0x37 /* gpmc_ad13.gpio1_13, OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE7 - w1-gpio */
  • [13:22:48] <Vaizki> what it does
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  • [13:23:11] <PeterJW> I think so. It sets the pin "0x34" to mode 0x37
  • [13:23:20] <panto> 3.12 kernels doesn't have compatible DTBOs with 3.8 ones
  • [13:23:23] <Vaizki> you need to define additional pins to be reserved by the cape and set them to the right mode
  • [13:23:24] <vmayoral> KotH: thank you! i'll try figuring it out :)
  • [13:23:32] <panto> do not taunt the 3.12 monkey
  • [13:23:46] <PeterJW> I tried to add a line with another pin, but it doesn't worked.
  • [13:24:01] <vmayoral> KotH: maybe i can also give it a try with wicd, have you used it on the BBB running Angstrom?
  • [13:24:01] <Vaizki> also in the next fragment you need to modify gpios = <&gpio2 13 0>;
  • [13:24:14] <PeterJW> ah, okay. Didn't do that
  • [13:24:22] <Vaizki> not sure of the syntax off hand
  • [13:24:25] <PeterJW> But which syntax?
  • [13:24:32] <Vaizki> panto maybe remembers it :)
  • [13:24:47] <panto> panto is really in friday mode now
  • [13:25:18] <Vaizki> ok well good for you.. and why did dtbo's break in going to 3.12?
  • [13:26:07] <panto> that's the perils of straying off the supported path
  • [13:26:14] <Vaizki> http://www.cs.fsu.edu/~baker/devices/lxr/http/source/linux/Documentation/powerpc/dts-bindings/gpio/gpio.txt
  • [13:26:14] <panto> overlays are not mainline
  • [13:26:20] <Vaizki> ah
  • [13:26:24] <Vaizki> didn't know that...
  • [13:26:39] <panto> and other people are breaking dt in abandon
  • [13:28:02] <Vaizki> PeterJW: let me try to mod mine...
  • [13:28:17] <Vaizki> I just need to find out a good pin to use for second W1
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  • [13:29:45] <PeterJW> Okay, I will try here in parallel
  • [13:30:11] <Vaizki> I think you basically need to replicate the onewire@0 block as a second onewire@1
  • [13:30:28] <PeterJW> Okay, I will try.
  • [13:30:51] <Vaizki> or you are really lazy you can of course just copy the whole .dts file and make each W1 pin into it's own "cape"
  • [13:31:00] <Vaizki> ^--- if
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  • [13:40:34] <PeterJW> Didn't get it to compile
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  • [13:43:46] <Vaizki> I got it to compile but it gives errors
  • [13:44:08] <Vaizki> I used pin gpio1[12] which is mux offset 0x30 it seems
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  • [13:49:02] <PeterJW> *??
  • [13:49:15] <PeterJW> *lol* Same as i use for trying :-)
  • [13:49:44] <PeterJW> But I'm not able to make it compile, with onewire-section copied
  • [13:51:41] <Vaizki> [ 429.224327] Unable to handle kernel NULL pointer dereference at virtual address 00000000
  • [13:51:42] <Vaizki> ooops
  • [13:51:50] <Vaizki> :D
  • [13:53:41] <Vaizki> ha. I think it worked.
  • [13:54:08] <woglinde> kernel oooppps?
  • [13:54:30] <PeterJW> Just compiles or really workes?
  • [13:54:40] <Vaizki> http://pastebin.com/cMXESZSk
  • [13:54:45] <Vaizki> at least that compiles and loads
  • [13:55:25] <Vaizki> the BBB is 250km away so I can't test if it really works :)
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  • [13:55:40] <KotH> vmayoral: i dont own a bbb
  • [13:56:16] <PeterJW> Ah, okay. So I will try
  • [13:56:21] <PeterJW> Give me a few minutes
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  • [14:01:00] <woglinde> koth me neither still I know more than some owners
  • [14:01:14] <Vaizki> probably more than 99% of owners
  • [14:01:33] <Vaizki> just look at us copy & paste dtbo's together here ;)
  • [14:01:43] <PeterJW> Vaizki, your my here hero.
  • [14:01:47] <woglinde> lol
  • [14:01:52] <PeterJW> Compiles and works in real system.
  • [14:02:00] <Vaizki> oooh nice
  • [14:02:04] <PeterJW> That's really great, you made my day(s).
  • [14:02:04] <Vaizki> \o/
  • [14:02:19] <Vaizki> you can send me champagne
  • [14:02:19] <PeterJW> Looking since wednesday for a solution
  • [14:02:43] <PeterJW> via e-mail? ;-)
  • [14:03:23] <Vaizki> just send your credit card details and I'll handle the procurement locally
  • [14:03:33] <PeterJW> lol
  • [14:04:04] <Vaizki> but tbh I should probably try to learn how the DT stuff works.. like really works.
  • [14:04:55] <Vaizki> if I do that, then they will dump the whole thing
  • [14:04:56] <PeterJW> Yes, that's weird stuff. Saw it 3 days ago the first time
  • [14:06:47] <Vaizki> hmmh I can't even find the stock DT definition for Arch on 3.8
  • [14:06:49] <woglinde> it is not weird
  • [14:08:31] <PeterJW> At the first view it is. A the second view it get's a little bit clearer
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  • [14:10:44] <PeterJW> okay, thanks for the quick help. See you soon
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  • [14:57:46] <jjc> hello, how can i write a non-flasher image to the eMMC on my BBB?
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  • [15:12:37] <av500> ?
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  • [15:25:39] <Freddie_> KotH : I'm into serial console of beaglebone white won't boot anymore with usual installing method
  • [15:26:33] <Freddie_> it says: uenvcmd was not defined in uEnv.txt
  • [15:26:57] <Freddie_> trying eMMC (BeagleBone Black)
  • [15:27:07] <Freddie_> but i'm using a old white one
  • [15:27:10] <Freddie_> then:
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  • [15:27:34] <Freddie_> mmc_send_cmd : timeout: No status update
  • [15:27:55] <Freddie_> Card did not respond to voltage select
  • [15:28:09] <Freddie_> mmc1 (part0) is current device
  • [15:28:24] <Freddie_> bbwhite is hung with three leds on
  • [15:30:12] * SpeedEvil (~quassel@tor/regular/SpeedEvil) Quit (Read error: Operation timed out)
  • [15:30:17] <woglinde> Freddie_ what now you are using from bbb for bb white?
  • [15:30:24] <woglinde> +bootenv
  • [15:32:35] <Freddie_> I was explaining before that the good old method for installing ubuntu in my beaglebone white :
  • [15:32:39] <Freddie_> ./setup_sdcard.sh --mmc /dev/sdX --uboot bone
  • [15:33:25] <Freddie_> works no more , tried many microSD , more beaglebonewhite, more linux pc for burning sd process
  • [15:34:42] <woglinde> maybee your bb white is broken
  • [15:35:02] <Freddie_> probably setup_sdcard.sh script point to something new on http webpage that is changed for the black ones ?
  • [15:35:14] <Freddie_> no , tried more bbwhite cards
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  • [15:41:46] <woglinde> you can try as many cards as you want when your bb white is broken none will work
  • [15:43:57] <Freddie_> I mean I own more beaglebone to check, all of them working ok i.e. with angstrom or already working ubuntu SD
  • [15:44:19] <woglinde> o.O
  • [15:44:26] <woglinde> I dont get your problem than
  • [15:45:00] <Freddie_> I also own several microSD that works ok if I install Angstrom but when installing ubuntu the way described they wont start
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  • [16:03:34] <Freddie_> from what I understood , it seems the flashed SD want to starts my BBwhite like it was a BBBlack with its internal eMMC
  • [16:04:08] <woglinde> fix your uenv.txt
  • [16:04:24] <Freddie_> but the procedure and distro used to burn the SD was the same used succesfully months ago....
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  • [16:08:55] <woglinde> and?
  • [16:08:59] <woglinde> anyway
  • [16:09:06] <woglinde> I am heading home
  • [16:09:10] <woglinde> till later maybee
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  • [16:27:18] <corrosion> Anyone interested in adding sound capability to their beaglebones?
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  • [16:36:34] <av500> as in?
  • [16:36:47] <middleca1> anybody really familiar with the connection manager on angstrom on the beaglebone?
  • [16:37:12] <middleca1> I have a BBB that's been working fine for a month, and suddendly I can't get a dhcp address on eth0
  • [16:37:14] <|PiP|> Can someone explain what the uenv.txt file is? I'd like to be able to boot my beagleboard black off a USB key (since my SD card port is damaged unfortunately and I can't get it repaired)
  • [16:37:36] <jkridner> |PiP|: the topic has a link that helps a bit...
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  • [16:37:43] <jkridner> http://ahsoftware.de/Beaglebone_Black_Boot_explained.svg
  • [16:38:07] <jkridner> uEnv.txt sets environment variables for u-boot, the bootloader used to load the kernel.
  • [16:38:46] <jkridner> do you want the kernel and everything on the USB key or just the root file system?
  • [16:38:56] <jkridner> both are options and are just a few uENV.txt entries away.
  • [16:39:10] <|PiP|> where is the uenv.txt file stored?
  • [16:39:23] <jkridner> it can be stored on the uSD or the eMMC (on-board flash)
  • [16:40:02] <|PiP|> if i change it and screw it up, is there a way to revert?
  • [16:40:16] <|PiP|> (my sd card slot is broken so i can't use the sd card unfortunately)
  • [16:40:28] <jkridner> it is a lot easier to debug setting environment variables for u-boot using the serial port, but it requires a special cable. as long as you put the right stuff in uenv.txt, you should boot off of USB fine.
  • [16:40:57] <|PiP|> oh okay. well i want to put an entire image on the USB key
  • [16:41:09] <jkridner> there isn't an easy way to revert if you don't have a uSD card to boot from... it is possible to boot over the USB client or serial, but they require running special code on your computer to perform the boot.
  • [16:41:28] <|PiP|> basically, this: http://www.beaglebone-asterisk.org/
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  • [16:41:50] <|PiP|> so i'm assuming the kernel and everything would boot off the USB too
  • [16:42:17] <|PiP|> and basically, i'd leave the bbb to always boot off a USB key if that's possible
  • [16:43:32] <|PiP|> what would i need to modify the uenv.txt file to?
  • [16:43:49] <av500> you can have SPL and uboot on emmc
  • [16:43:53] <av500> and load the rest from usb, yes
  • [16:44:13] * jkridner needs to think a bit about the args that need to be put on the uEnv.txt...
  • [16:44:33] <jkridner> you should be able to currently edit uenv.txt by plugging the board into your host and having it show up as a flash drive...
  • [16:44:48] <middleca1> anybody around?
  • [16:44:58] <jkridner> if you screw up uenv.txt, you won't be able to do that anymore because linux won't be running to share the eMMC as a flash drive.
  • [16:45:21] <jkridner> so, it unfortunately has to be right the first try if you don't have a serial cable. :(
  • [16:46:36] <jkridner> |PiP|: guess the best thing is for someone to duplicate your setup that has a serial cable and create a uEnv.txt that would be known to work.
  • [16:46:52] * jkridner doesn't have time to do that right now
  • [16:46:58] * jkridner is meeting someone for lunch
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  • [16:55:12] <|PiP|> i dont, but i do have another BBB that works with microsd
  • [16:55:46] <|PiP|> bought two, one was damaged unfortunately, wanted to use both as a voip pbx
  • [16:55:59] <|PiP|> thanks for your help
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  • [17:02:05] <jkridner> |PiP|: use the one with the working uSD to test your uEnv.txt. You can load a uEnv.txt onto your uSD to test it and once it works, copy it over to the eMMC to test it, then copy it to the eMMC on the board with the broken uSD.
  • [17:02:15] <sono> sure. but what do you expect us to do?
  • [17:03:05] <middleca1> Wow, I guess, I was hoping someone might have had a similar experience, and could help me fix connman / angstrom, so it can correctly get a dhcp lease on eth0
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  • [17:04:51] <middleca1> like, troubleshooting and stuff
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  • [17:27:48] <ZiNC> Greetings.
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  • [17:39:18] <|PiP|> i have no idea what to put in the uenv file
  • [17:42:04] <thurgood> what are you trying to do with it?
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  • [17:44:18] <R2E4> up anyone?
  • [17:44:27] <R2E4> join #linuxcnc
  • [17:47:55] <|PiP|> boot off the USB key
  • [17:48:10] <|PiP|> which has the image from this on it: http://www.beaglebone-asterisk.org/
  • [17:49:27] <|PiP|> or alternatively, flash that image onto the BBB
  • [17:49:38] <|PiP|> without using the SD
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  • [18:45:25] <Vaizki> you can't boot off a usb key
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  • [18:46:03] <Vaizki> you can boot from uSD, eMMC or from an attached computer over USB.
  • [18:46:30] <Vaizki> ok there's also network boot but I have a feeling you don't want to go there
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  • [19:02:58] <sam____> Hello I bought beaglebone black from my friend but even after installing driver for it, it not detected and flashing of boot LEDs also not happened .why ?
  • [19:03:37] <myself> how much power can your USB port source? Try running it from a powered hub.
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  • [19:05:10] <sam____> 500 mA.And there is no any other component I connected to it.Even no USD card.
  • [19:06:09] <jacekowski> 500mA is not a lot
  • [19:07:00] <myself> Try powering it with an external 5v brick?
  • [19:07:33] <sam____> Is it possible that there is no any Kernel inside eMMC ?
  • [19:08:01] <myself> It sounds like you're not getting power.
  • [19:08:24] <sam____> Ok Thanks
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  • [19:26:09] <sono> middleca1: there is very little info in your request, i am not going to start suggesting basic tests to be performed to find the cause, maybe someone else is willing to walk you through
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  • [19:38:14] <middleca> hey sono, I found the problem
  • [19:38:28] <middleca> the beaglebone black has a bad interaction when you mux a particular pin with the ethernet interface
  • [19:38:49] <middleca> that pin shouldn't touch anything, since it's gpio, but apparently it causes the bbb to eat the networking interface
  • [19:40:05] <middleca> thanks for chastizing me though!
  • [19:40:18] <sono> well, you made a change and it stopped working
  • [19:40:30] <sono> that's quite a substantial bit of information right there =)
  • [19:40:35] <sono> which pin was it?
  • [19:40:37] <middleca> on a totally unrelated component
  • [19:40:50] <middleca> why don't you mux them all in every mode and find out?
  • [19:40:51] <sono> still, how would you expect anyone else to figure it out?
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  • [19:41:27] <middleca> I guess I would hope someone would have a similar "ethernet stopped working" experience, and be able to suggest stuff like... "restart connman," "here are the normal dhcp configs to check, etc" to help eliminate issues
  • [19:41:36] <middleca> you know, standard troubleshooting stuff
  • [19:41:45] <sono> none of which would have lead to success
  • [19:42:09] <middleca> it would have, because I wouldn't have wasted a few hours studying all the networking config issues, and I could have focused on other seemingly unimportant changes
  • [19:42:36] <sono> did you change the network configuration at all?
  • [19:43:05] <middleca> I hadn't, which is why I was confused that the networking died. But my BBB has always given me random issues
  • [19:43:21] <sono> hmm
  • [19:43:27] <sono> such as?
  • [19:44:44] <middleca> ack, gotta brb, phone
  • [19:44:53] <middleca> but I'll probably have to write some posts or something on it
  • [19:45:16] <sono> would be interesting to hear about the muxing as well.
  • [19:45:51] <sono> since that isn't at all beaglebone related, but would be a bug in the hardware (unlikely) or kernel/dts (unlikely)
  • [19:46:00] <sono> soo.. anytime
  • [19:46:23] <sono> hardware of the am335x that is
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  • [19:46:31] <middleca> is that a chip on the beaglebone?
  • [19:46:36] <sono> i mean, you say you changed the mux of an entirely unrelated pin
  • [19:46:37] <sono> yes..
  • [19:46:42] <middleca> so it'd be on the bbb?
  • [19:47:05] <sono> the amm3359 is the bbb's SoC, main processor
  • [19:47:08] <sono> am*
  • [19:47:13] <sono> thing is,
  • [19:47:27] <sono> if you change the muxing of one pin entirely unrelated to the function of the ethernet interface,
  • [19:47:32] <sono> and the interface stops working,
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  • [19:48:04] <sono> then something is seriously at miss on either the hardware or the kernel
  • [19:48:11] <sono> so i would like to be able to confirm that
  • [19:51:33] <sono> one more thing: this isn't official support, i am not even affilliated with the project in any way
  • [19:51:48] <TooLmaN> is there no way in Win7 to reformat a RPi/BBB imaged SD card? All I ever get is my same ~60MB fat32 partition. SDFormatter doesn't even clear it. I do this with gparted in Linux all the time but at work I'm using my Win7 machine primarily.
  • [19:52:00] <sono> if you are looking for professional support, you are a) in the wrong place and b) probably not eligible for any
  • [19:52:11] <sono> so take what you can get.
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  • [19:53:52] <middleca> thanks, I know, I came for the community support ;)
  • [19:54:07] <middleca> just telling you what I saw on 11 BBBs
  • [19:54:17] <sono> well, the channel is quite low volume, it appears
  • [19:54:26] <sono> well, except you're not telling us
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  • [19:57:43] <_vicash_> hi there. what is the package for Sound applications in the Angstrom for the BBB.
  • [19:57:53] * willingc (~willingc@108.175.222.179) Quit (Remote host closed the connection)
  • [19:58:16] <_vicash_> I am trying to have an app make a sound using command line by playing a stupid MP3 that makes a special bell sound. this is for a simple project that uses a BBB as a custom alarm
  • [19:58:33] <_vicash_> there is an application for making that sound but I cant remember the name. Please advise.
  • [20:01:09] <prpplague> _vicash_: there are a number of utilities available but mplayer might be the easiest for a mp3 from command line
  • [20:01:26] <prpplague> _vicash_: easier would be to have it as a wav file and just use aplay
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  • [20:02:12] <_vicash_> prpplague: sure. wav file is fine too. thanks.
  • [20:02:35] <_vicash_> prpplague: what about sox ?
  • [20:03:02] <prpplague> _vicash_: probably good as well
  • [20:03:41] <_vicash_> prpplague: thanks.
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  • [20:19:06] <_vicash_> \part
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  • [21:36:32] <pecg> Can I boot from SD card instead of the flash memory?
  • [21:36:51] <pecg> Are there any libre drivers for the GPU?
  • [21:36:53] * vvu|Log is now known as vvu|Log_away
  • [21:37:09] <pecg> How do I use a USB adapte
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  • [21:37:50] <pecg> for wireless
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  • [21:47:26] <dm8tbr> my aren't we patient
  • [21:50:04] <ion> Wow, over a minute.
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  • [21:51:04] <mark4> lol
  • [21:51:16] <mark4> gimme ALl my answers NOW dammit
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  • [21:52:00] <dm8tbr> including exact steps!
  • [21:52:15] <mark4> those are always helpful
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  • [22:31:47] <RS_> Just wondering if anyone has any experiences with retrieving data from the internet using BBB? Do I have to install a server to use Twitter API and retrieve data from the API?
  • [22:33:36] <davr> it's the same as retrieving data from the internet on any other linux computer
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  • [22:36:26] <jonpry> sounds to me like you are setting the wrong pinmux
  • [22:36:48] <jonpry> hard to say without any details
  • [22:39:13] <RS_> Okay, sorry kinda new to this. I assume that means setting up a server is not necessary. Thank you.
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  • [23:03:54] <mark4> hrm is darknighte the GBA development hacker dood ?
  • [23:04:25] <mark4> the one who deliberately released code to brick hundreds of nintendo ds's
  • [23:05:01] <davr> that was DarkFader
  • [23:05:09] <mark4> oh yea
  • [23:05:17] <Russ> ...probably *c* code
  • [23:05:49] <mark4> davr heh u know of that piece of gba history eh
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  • [23:08:13] <mark4> he still active? did the community forgive him or is he shunned still?
  • [23:08:25] <davr> no idea
  • [23:08:42] <davr> i dont really follow that community since a couple years
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  • [23:13:27] <jpfau> people did some pretty crazy stuff with the GBA back in the day. I've been doing some GBA crackpottery myself recently, but I'm a bit late to the party :P
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  • [23:16:39] <davr> go for nintendo DS, that is pretty well documented now. anything past that though I don't think there's been much progress (the dsi and 3ds)
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  • [23:20:25] <jpfau> I got a flash cart for the GBA without the means to flash to it (for working on some homebrew stuff) so I wrote a DS ROM to flash it instead. That was pretty great.
  • [23:21:19] <jpfau> but mostly I was talking about this: https://github.com/jpfau/gbajs
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  • [23:40:18] <alfaalfa> hi, is possible connect 4 sensor wireless to 1 AccessPoint on Beagle Board?
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  • [23:47:47] <beaglepow3r> just powered up my BBB. Noticed with df that it only has ~1.7 GB total disk of which 1.4 GB is used?
  • [23:48:06] <sheldonw> yep
  • [23:48:13] <sheldonw> that's a full blown gui interface.
  • [23:48:16] <alfaalfa> sheldonw: what i need?
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  • [23:48:23] <alfaalfa> a wifi key on BBB?
  • [23:48:42] <beaglepow3r> yeah. also sad that it's only 1.7 and not 2 GB
  • [23:48:42] <sheldonw> alfaalfa, sorry was referring to beaglepow3r
  • [23:48:55] <sheldonw> there's 2 partitions
  • [23:49:08] <beaglepow3r> oh. devtempfs
  • [23:49:19] <sheldonw> put ubuntu/debian on if you don't wanna waste time removing packages to slim it down.
  • [23:49:27] <alfaalfa> sheldonw: what you mean?
  • [23:49:30] <beaglepow3r> not a bad idea
  • [23:49:31] <alfaalfa> beaglepower?
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  • [23:50:02] <sheldonw> alfaalfa, I am talking to beaglepow3r.
  • [23:51:54] <alfaalfa> sheldonw: what is?
  • [23:52:52] <sheldonw> read the channel screen dood.. beaglepow3r is another user.. I am answering his question
  • [23:53:00] <sheldonw> heh
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  • [23:56:07] * Korra (~Korra@c211-30-55-84.frank3.vic.optusnet.com.au) Quit (Ping timeout: 260 seconds)
  • [23:57:19] <alfaalfa> sheldonw: channel screen dood..??
  • [23:58:02] * aergus (~aergus@pptp-194-94-199-197.pptp.stw-bonn.de) Quit (Ping timeout: 268 seconds)
  • [23:59:20] <beaglepow3r> thanks for the help sheldonw
  • [23:59:30] <beaglepow3r> good luck alfaalfa
  • [23:59:41] * beaglepow3r (82a43ef8@gateway/web/freenode/ip.130.164.62.248) Quit (Quit: Page closed)
  • [23:59:53] * Peuc (~Peuc@ip-50-21-134-236.dsl.netrevolution.com) Quit (Ping timeout: 268 seconds)