**** BEGIN LOGGING AT Sun Mar 09 02:59:58 2014
Mar 09 03:42:33 <kobymaster_> hi
Mar 09 03:47:59 <inca> Things I wish I had known before I started hacking BBB: http://mail-index.netbsd.org/port-arm/2013/07/23/msg001919.html
Mar 09 04:11:51 <stabby> Hi, do any CAD models of the beagleboard-xm exist?  The Sketchup link seems to be deleted...
Mar 09 04:43:17 <Russ> inca, the serial header is clearly mentioned multiple times in the SRM
Mar 09 04:43:27 <Russ> are you sure you aren't reading the beaglebone white SRM?
Mar 09 04:44:39 <Russ> the rest of the stuff isn't beaglebone specific except maybe the limitations of the bootrom
Mar 09 04:45:04 <Russ> which if loading off of MMC, has a limited set of partition layouts and needs a fat filesystem to load MLO
Mar 09 04:45:14 <Russ> from there on out, it isn't beaglebone specific
Mar 09 04:45:58 <Russ>   
Mar 09 05:41:33 <RobotGrrl_> Hi, I am having trouble with my BBB. I can't connect to the webserver, and also can't ssh into it. I tried the BBB before and it worked fine. The BBB is revision A5C, powered and connected via usb cable. So far tonight I tried disconnecting/reconnecting the usb cable, pressing the power button, reset button. The LEDs flash seemingly randomly. Has anyone had this issue, or can point me in the direction to solve it?
Mar 09 05:53:57 <littledog_> U-Boot SPL 2011.12-00010-ga3eb89c (Jan 29 2012 - 14:53:43)  Texas Instruments Revision detection unimplemented   my BB hangs here why ? i use SD card to boot..
Mar 09 06:12:25 <RobotGrrl_> Nevermind- solved the problem. It was the wrong ip address. (newbie)
Mar 09 06:13:21 <insurgent> :D
Mar 09 06:17:22 <myself> Heh. Catching up on scrollback, props for asking a really detailed and useful question.
Mar 09 08:45:22 <agmlego> And, perhaps more importantly, for the follow-up on the solution and the closing of the question.
Mar 09 08:54:50 <Shadyman> Oooh, http://noritake-vfd.com/ sale starting march 10th
Mar 09 08:54:54 <Shadyman> :3
Mar 09 10:48:01 <k4rjj> Hello.  Anyone on?
Mar 09 10:48:36 <agmlego> Nope.
Mar 09 10:52:10 <tbr> lulz
Mar 09 10:55:57 <ion> :-D
Mar 09 11:01:13 <Abhishek_> :P
Mar 09 14:13:10 <VirG> Hi People.
Mar 09 14:13:44 <VirG> If anyone has any preferred 4in or 7in touch screen displays for the BBB, what are they?
Mar 09 14:14:02 <VirG> I am unable to decide on which one to try.
Mar 09 14:18:57 <CareBear\> VirG : spend some time and become able to decide.
Mar 09 14:19:11 <CareBear\> VirG : asking someone else to decide for you is never a good thing.
Mar 09 14:19:20 <VirG> heh
Mar 09 14:19:22 <VirG> I have been
Mar 09 14:19:25 <VirG> about two months
Mar 09 14:19:27 <CareBear\> VirG : if you can't make progress in this domain then find another.
Mar 09 14:19:29 <tbr> pay attention if it is supported only by a "custom image" or upstream
Mar 09 14:19:44 <VirG> reading this, reading that, finding issues and benefits with different systems
Mar 09 14:20:20 <VirG> tbr: yeah, I found and excluded several with requirements like that.
Mar 09 14:20:25 <CareBear\> you need to stop looking at systems and start looking at how the technologies actually work
Mar 09 14:21:07 <CareBear\> systems expect you to consume
Mar 09 14:21:16 <CareBear\> technologies you can master
Mar 09 14:21:23 <VirG> I have three different sets of requirements. Two of them have arisen in the last two weeks.
Mar 09 14:21:50 <CareBear\> if you want to consume then don't waste any time on technologies
Mar 09 14:21:59 <CareBear\> and vice versa
Mar 09 14:22:11 <VirG> I don't know what that means.
Mar 09 14:22:39 <CareBear\> it means that if you expect a solution which allows you to avoid learning anything then you have to continue like you have already
Mar 09 14:23:13 <CareBear\> whereas if you expect to learn about technologies in order to master the decision about which panel you will use then you have to change your approach
Mar 09 14:23:13 <VirG> heh
Mar 09 14:23:21 <VirG> who says that is what I'm doing.
Mar 09 14:24:38 <CareBear\> nobody says it explicitly, but the way you used the word system and the fact that you can't find an appropriate panel for two months says fairly clearly that you don't master the technology and may not even want to
Mar 09 14:24:57 <CareBear\> if you *do* want to then this is a great place
Mar 09 14:25:37 <VirG> which is why I am finally asking to see what other people like, do not like, have had success with and / or failures with.
Mar 09 14:25:52 <CareBear\> why not ask about the technology instead?
Mar 09 14:26:01 <CareBear\> you're stuck in thinking about systems
Mar 09 14:26:18 <CareBear\> does that make sense?
Mar 09 14:26:31 <VirG> What technological questions do you think I should be asking?
Mar 09 14:27:03 <CareBear\> anything that shows that you are on your way to master the technology
Mar 09 14:27:21 <CareBear\> so how to start on that road?
Mar 09 14:27:29 <VirG> nevermind
Mar 09 14:27:30 <CareBear\> where do the signals start?
Mar 09 14:27:38 <CareBear\> display controller
Mar 09 14:27:46 <VirG> don't worry about it
Mar 09 14:28:07 <CareBear\> you're looking for a panel which works with the am3359 display controller
Mar 09 14:28:16 <VirG> not necessarily
Mar 09 14:28:21 <CareBear\> ?
Mar 09 14:28:23 <VirG> one of the systems has its own driver board.
Mar 09 14:28:30 <VirG> like I said, don't worry about it
Mar 09 14:28:46 <CareBear\> ...systems
Mar 09 14:29:20 <CareBear\> well - tell what your requirements are? at least then someone may be able to give concrete advice.
Mar 09 14:29:41 <VirG> Its all good, I'll figure it out.
Mar 09 14:31:04 <CareBear\> okey
Mar 09 15:05:33 <aurodas> hello all
Mar 09 15:05:53 <aurodas> anyone working on zigbee protocol with beaglebone?
Mar 09 15:07:29 <tbr> there is no native zigbee stack for linux
Mar 09 15:08:11 <tbr> there is a native 802.15.4 based 6loWPAN stack
Mar 09 15:11:52 <aurodas> what about mesh networking in the 802.15.4 stack
Mar 09 15:16:43 <inca> Russ: it was the bootloader side of things which took a bit to get my head wrapped around. The environment run scripts are a bit odd and the boot order is hard to determine just by looking at uEnv.txt on the SD card... It gets read after the eMMC version and sometimes barfs as a result.
Mar 09 15:37:29 <aurodas> what are the restrictions withholding a zigbee stack from being developed for linux?
Mar 09 15:40:41 <tbr> zigbee is proprietary
Mar 09 15:51:54 <inca> aurodas: such is the way of the GPL
Mar 09 16:27:46 <KotH> aurodas: http://en.wikipedia.org/wiki/ZigBee#License
Mar 09 16:28:30 <KotH> aurodas: use 6lowpan instead
Mar 09 17:22:57 <MatthieuG> Hi !
Mar 09 17:22:59 <MatthieuG> I want to control a led from my bbb through GPIO. What precaution I have to respect in order to avoid to broke GPIOs ?
Mar 09 17:52:54 <CareBear\> MatthieuG : appropriate current draw
Mar 09 17:53:30 <CareBear\> MatthieuG : your sentence is very accurate - it is important that you *control* the LED rather than *drive* it
Mar 09 17:54:12 <MatthieuG> what is difference between control and drive ?
Mar 09 17:54:31 <CareBear\> drive means supply all current to the LED
Mar 09 17:54:42 <CareBear\> control means to control the driving
Mar 09 17:55:29 <MatthieuG> ok, so It's better to connect the gpio to a transistor that control the current trough a led and a resistor ?
Mar 09 17:55:37 <CareBear\> MatthieuG : unlike e.g. an ATmega or a PIC the am3359 isn't really capable of driving LEDs, because they usually like to draw quite a lot of current
Mar 09 17:56:12 <CareBear\> MatthieuG : a transistor is the classical way to do control, yes
Mar 09 17:56:54 <CareBear\> you could use a small FET for example
Mar 09 17:57:10 <CareBear\> or you could use a logic transistor, but they are a bit more unusual
Mar 09 17:57:33 <CareBear\> MatthieuG : there is another aspect to "control" in this case
Mar 09 17:57:53 <CareBear\> MatthieuG : *you* have to decide how much current you want there to flow through the LED
Mar 09 17:58:56 <CareBear\> MatthieuG : this decision is primarily based on how you want the LED to light up, and translated using the performance data of the LED into the current that is required
Mar 09 17:59:09 <CareBear\> MatthieuG : how brightly, how long, etc. etc.
Mar 09 17:59:27 <MatthieuG> I guess around 20mA
Mar 09 17:59:44 <CareBear\> then you'll need some kind of driver for sure
Mar 09 17:59:53 <MatthieuG> ok
Mar 09 18:00:07 <CareBear\> am3359 can drive up to 8mA
Mar 09 18:00:17 <CareBear\> (or was it 10mA?)
Mar 09 18:00:22 <CareBear\> (or maybe 6mA?)
Mar 09 18:00:28 <CareBear\> argh - I'm getting confused now
Mar 09 18:00:30 <CareBear\> too tired
Mar 09 18:00:42 <MatthieuG> ok, I will check in datasheet.
Mar 09 18:00:44 <CareBear\> sorry - you'll have to check the spruh73 doc
Mar 09 18:00:49 <CareBear\> but it's way below 20 in any case
Mar 09 18:01:05 <CareBear\> so there's a way to cheat as well..
Mar 09 18:01:32 <CareBear\> if you find an LED which only needs a very low current to perform as you like then you could drive it directly from the gpio
Mar 09 18:01:51 <MatthieuG> Do I need to use a different power supply for the bbb and for the led ?
Mar 09 18:01:51 <CareBear\> but this is a corner case and will only work if you make an effort to ensure that it will
Mar 09 18:02:18 <CareBear\> no, you can use the 5V both for board and LED drive
Mar 09 18:02:39 <CareBear\> it doesn't really matter which power supply you use for the LED
Mar 09 18:03:52 <MatthieuG> is there a connector on bbb where I can get the 5V ?
Mar 09 18:04:08 <CareBear\> there is - see the beaglebone SRM
Mar 09 18:04:22 <MatthieuG> ok thank you
Mar 09 18:05:11 <CareBear\> you're welcome
Mar 09 18:06:42 <MatthieuG> Is exist software for check more complex electrical diagram, in order to avoid current shortcut or over current problem ?
Mar 09 18:20:07 <SpeedEvil> MatthieuG: ##electronics - in short - somewhat. Electrical rule checks.
Mar 09 18:30:49 <aurodas> what about the ZBOSS stack for linux x86 platform?
Mar 09 21:15:48 <Matthias> Hi
Mar 10 00:30:09 <rkguy> If anybody is active: I have been reading some threads and see people talking about power management with the BBB using custom builds.
Mar 10 00:31:01 <rkguy> Anybody been able to do this succesfully? I've seen this thread: https://groups.google.com/forum/#!topic/beagleboard/-LwTvsgd-78 and it looks possible, as per this TI  thread http://e2e.ti.com/support/arm/sitara_arm/f/791/p/274073/967686.aspx#967686
Mar 10 01:06:28 <rkguy> In reponse to my previous post, I just want to say that I posted to the beagle board google group. If you have any tips, please drop a reply https://groups.google.com/forum/#!category-topic/beagleboard/iShOePQX_i8
**** ENDING LOGGING AT Mon Mar 10 02:59:58 2014