#pandaboard IRC Log on pandaboard.org

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IRC Log for 2011-08-09

Timestamps are in UTC.

  1. [00:00:04] <prpplague> pcpower: you have no previous experience with electronics or programming?
  2. [00:00:56] <pcpower> I am a programmer and I have some knowledge of electronics
  3. [00:01:05] <pcpower> but I am not an EE by any means
  4. [00:01:29] <prpplague> pcpower: what kind of programming do your normally do?
  5. [00:01:44] <pcpower> c/c++/python/perl
  6. [00:02:31] <pcpower> and occasionally java (usually for android)
  7. [00:02:41] <pcpower> some web stuff as well
  8. [00:02:47] <prpplague> pcpower: right, those are the languages, but what kind of programs do you normally write?
  9. [00:03:27] <pcpower> desktop applications, 3D rendering, mobile apps, web/database backend stuff
  10. [00:04:07] <pcpower> not much embedded work
  11. [00:04:09] <prpplague> pcpower: ok, good point of reference
  12. [00:04:55] <pcpower> I want to do things similar to arduino like attach sensors to various other pieces of hardware and have the pandaboard control them
  13. [00:05:01] <pcpower> with web interface, monitoring etc.
  14. [00:05:19] <prpplague> pcpower: ok
  15. [00:05:42] <pcpower> what I do not understand fully is the interfacing between other hardware
  16. [00:05:45] <pcpower> GPIO/i2c etc.
  17. [00:05:56] <prpplague> pcpower: ok, we can start there and give you some information
  18. [00:08:06] <prpplague> pcpower: most of the pins on the omap4430 have multiple functions
  19. [00:08:42] <prpplague> pcpower: indeed to provide as much flexibilty as possible, most modern microcontrollers and larger processors do this
  20. [00:09:16] <prpplague> pcpower: thing of it like a 3 way switch
  21. [00:09:29] <prpplague> pcpower: set the switch one way it is a gpio
  22. [00:09:40] <prpplague> pcpower: set the switch another way it is a i2c data line
  23. [00:09:46] <pcpower> right
  24. [00:09:50] <prpplague> pcpower: set to another it is a spi data
  25. [00:09:54] <pcpower> I figured out that much
  26. [00:10:07] <prpplague> pcpower: not everyone uses the pins in the same way
  27. [00:10:19] <prpplague> pcpower: i might want to use it as a spi and you want it as gpio
  28. [00:10:35] <pcpower> if that x-loader source is anything like what's actually used by ubuntu it looks like no pins are setup to be gpio
  29. [00:10:42] <prpplague> pcpower: so how groups like ubuntu, set it up the way most people are going to use it
  30. [00:10:48] * skorgon_ (~skorgon@unaffiliated/skorgon) Quit (Ping timeout: 252 seconds)
  31. [00:11:08] <prpplague> pcpower: i just downloaded the x-loader source from the ubuntu web site
  32. [00:11:16] <prpplague> pcpower: looking now to see what the default pins are
  33. [00:14:12] <prpplague> pcpower: looks like mcspi1_cs2 and mcspi1_cs3 are configured as gpios in x-loader
  34. [00:15:10] <pcpower> where did you find the source?
  35. [00:15:26] <prpplague> pcpower: just went to the ubuntu website
  36. [00:15:41] <pcpower> link?
  37. [00:15:46] <prpplague> pcpower: https://launchpad.net/ubuntu/+source/x-loader
  38. [00:16:13] * TheSeven (~TheSeven@rockbox/developer/TheSeven) Quit (Remote host closed the connection)
  39. [00:17:12] <prpplague> pcpower: you should be able to follow the instructions on the makezine page using either gpio 139 or gpio 140
  40. [00:18:54] <pcpower> those don't show up in /sys/class/gpio
  41. [00:19:52] <prpplague> pcpower: did you read the article?
  42. [00:20:04] * TheSeven (~TheSeven@rockbox/developer/TheSeven) has joined #pandaboard
  43. [00:20:57] <pcpower> yes
  44. [00:21:10] <pcpower> it uses that directory to change the value
  45. [00:21:14] <prpplague> pcpower: echo 139 > /sys/class/gpio
  46. [00:21:20] <prpplague> pcpower: echo 139 > /sys/class/gpio /export
  47. [00:21:27] <prpplague> sorry left the export off
  48. [00:22:44] <prpplague> pcpower: the export tells the kernel to make the port available
  49. [00:22:50] <pcpower> gotcha
  50. [00:22:57] <pcpower> what file did you look at in that source?
  51. [00:23:09] * drd_ (cdaf79fd@gateway/web/freenode/ip.205.175.121.253) Quit (Quit: Page closed)
  52. [00:23:14] <prpplague> <TheSeven> http://gitorious.org/pandaboard/x-loader-mainline/blobs/master/board/omap4430panda/omap4430panda.c
  53. [00:23:24] <pcpower> ok
  54. [00:23:26] <prpplague> pcpower: omap443panda.c
  55. [00:23:28] <pcpower> https://launchpad.net/ubuntu/+source/x-loader is really confusing
  56. [00:23:35] <pcpower> at the top is acts like there is a panda specific package
  57. [00:23:38] <pcpower> but I don't see it anywhere
  58. [00:23:41] <pcpower> it acts*
  59. [00:23:49] <pcpower> x-loader-omap4-panda: Board initialization helper for TI OMAP 4 Panda boards
  60. [00:23:54] <pcpower> but this is not a valid package
  61. [00:24:22] <pcpower> http://bazaar.launchpad.net/~ubuntu-branches/ubuntu/maverick/x-loader/maverick-updates/files/head:/board/
  62. [00:24:26] <prpplague> pcpower: right there on the page
  63. [00:24:27] <pcpower> this does not list panda directory
  64. [00:24:38] <pcpower> prpplague: where?
  65. [00:25:07] <prpplague> https://launchpad.net/ubuntu/+source/x-loader/1.5.0+git20110325+b6bbfe7-1ubuntu1
  66. [00:26:06] <pcpower> that is for natty not maverick
  67. [00:26:22] <prpplague> pcpower: then get the one for natty
  68. [00:26:33] <pcpower> you mean maverick
  69. [00:26:42] <prpplague> <pcpower> that is for natty not maverick
  70. [00:26:54] <prpplague> pcpower: so you need maverick ?
  71. [00:27:00] <prpplague> pcpower: download the maverik
  72. [00:27:18] <pcpower> I did
  73. [00:27:21] <pcpower> it doesn't have panda in it
  74. [00:28:26] <prpplague> pcpower: you are using 10.04 or 10.10?
  75. [00:28:56] <pcpower> 10.10
  76. [00:31:53] <prpplague> pcpower: indeed looks like they have something missing
  77. [00:35:58] <prpplague> pcpower: did you get the gpio exported?
  78. [00:37:10] * CaptainCrunch (~ken@HSI-KBW-091-089-142-207.hsi2.kabel-badenwuerttemberg.de) Quit (Ping timeout: 260 seconds)
  79. [00:38:12] <prpplague> pcpower: https://launchpad.net/ubuntu/maverick/+source/x-loader-omap4
  80. [00:38:22] <prpplague> pcpower: you can get the one for marverick there
  81. [00:39:02] <prpplague> pcpower: you can use gpio 139 or 140
  82. [00:40:35] <pcpower> where did you find that??
  83. [00:40:57] * Alison_Chaiken (~Alison_Ch@173-228-89-192.dsl.static.sonic.net) Quit (Quit: Leaving)
  84. [00:41:04] <prpplague> pcpower: line 832 in omap4430panda.c
  85. [00:41:17] <pcpower> no I mean
  86. [00:41:18] <pcpower> that package
  87. [00:41:22] <pcpower> I couldn't find that version anywhere
  88. [00:41:25] <pcpower> that had the panda file in it
  89. [00:41:38] <pcpower> whatever, I give up trying to understand their packages
  90. [00:41:44] <prpplague> pcpower: its on the ubuntu site, just did a search for x-loader-omap4
  91. [00:41:46] <pcpower> it always makes no sense
  92. [00:41:51] <pcpower> weird
  93. [00:41:55] * prpplague never uses ubuntu on panda
  94. [00:42:01] <pcpower> are 139/140 the only ones that work?
  95. [00:42:05] <pcpower> it looks like there's others
  96. [00:42:22] <prpplague> pcpower: those are the only ones on the expansion header that are pre-configured as gpio
  97. [00:42:32] <prpplague> pcpower: that way you can start working with a gpio
  98. [00:42:34] <pcpower> how do you determine that?
  99. [00:42:42] <pcpower> I am looking at the source
  100. [00:42:59] <prpplague> pcpower: i looked at the schematic, found the pins on the expansion header, and compared them to the list
  101. [00:43:29] <pcpower> I don't understand
  102. [00:43:42] <pcpower> I thought it was only through x-loader that a pin was setup for gpio or not
  103. [00:44:42] * TheUni (~theuni@xbmc/staff/theuni) Quit (Read error: Connection reset by peer)
  104. [00:44:43] <prpplague> pcpower: the pins can be switch anywhere, but normally they are pre-configured in x-loader to start with
  105. [00:44:53] * cooloney (~roc@180.157.89.173) has joined #pandaboard
  106. [00:44:55] <prpplague> pcpower: which item did you not understand?
  107. [00:45:12] <pcpower> how you can tell from just looking at the source that only 139 and 140 will work
  108. [00:45:28] <prpplague> pcpower: i went to the schematic
  109. [00:45:41] <prpplague> pcpower: look at the pins that are available on the header
  110. [00:45:57] <prpplague> pcpower: then matched that pin to what is listed in the x-loader
  111. [00:46:48] <prpplague> pcpower: only 139 and 140 are configured as gpios in x-loader
  112. [00:47:11] <prpplague> pcpower: which means unless you want to compile a new kernel or x-loader, you will need to use one of those pins
  113. [00:47:15] <pcpower> yes but other lines in that source say /* gpio_XX */
  114. [00:47:25] <pcpower> why can't those be used?
  115. [00:47:50] * nighty^ (~nighty@74.198.9.150) has joined #pandaboard
  116. [00:48:03] <prpplague> pcpower: those don't go to the expansion header
  117. [00:48:10] <prpplague> pcpower: they are for other things
  118. [00:49:15] <pcpower> ok
  119. [00:49:20] <pcpower> so I exported gpio 140
  120. [00:49:37] <pcpower> but whether I echo high or low to it, it always returns "out" as the value
  121. [00:49:40] <pcpower> I mean, direction
  122. [00:49:42] <pcpower> not value
  123. [00:50:11] <prpplague> pcpower: ok, so you did: echo out > direction
  124. [00:50:17] <prpplague> pcpower: is that correct?
  125. [00:50:19] <pcpower> no
  126. [00:50:23] <pcpower> I did echo high > direction
  127. [00:50:24] <pcpower> or echo low
  128. [00:50:31] <pcpower> which is what that makezine article uses
  129. [00:50:38] <prpplague> pcpower: you need to do: echo out > direction
  130. [00:50:45] <pcpower> why?
  131. [00:50:49] <pcpower> what's the difference?
  132. [00:51:08] <prpplague> pcpower: gpio's can be used as an input or output
  133. [00:51:18] <prpplague> pcpower: in this case you want it to be used as an output
  134. [00:51:38] <prpplague> pcpower: so by echoing out to direction, you set the direction to output
  135. [00:51:53] <pcpower> ok so, how would I be able to turn the LED off
  136. [00:51:57] <pcpower> right now it stays on all the time
  137. [00:52:15] <prpplague> pcpower: so now, you can do: echo 0 > value
  138. [00:52:20] <prpplague> pcpower: that turns it off
  139. [00:52:27] <prpplague> pcpower: or : echo 1 > value
  140. [00:52:30] <prpplague> pcpower: turns it on
  141. [00:53:21] <pcpower> does nothing here, and it was already 0
  142. [00:53:22] <prpplague> pcpower: to see the current value: cat value
  143. [00:53:26] <pcpower> changing it to 1 didn't do anything
  144. [00:53:28] <pcpower> it still stays on
  145. [00:53:47] <prpplague> pcpower: when you say "it stills stays on" , what stays on?
  146. [00:53:51] <pcpower> the LED
  147. [00:53:56] <pcpower> regardless of the value
  148. [00:53:57] <pcpower> 1 or 0
  149. [00:53:58] <prpplague> pcpower: you have a led connected?
  150. [00:53:58] <pcpower> it stays on
  151. [00:54:00] <pcpower> yes
  152. [00:54:05] <pcpower> to pins 2 and 4
  153. [00:54:11] <pcpower> of J3
  154. [00:54:24] <prpplague> pcpower: i hope you added a resistor
  155. [00:54:32] <pcpower> no?
  156. [00:54:38] <pcpower> why
  157. [00:55:01] <prpplague> pcpower: you probably will over current the gpio
  158. [00:55:06] <pcpower> they didn't in the makezine article
  159. [00:55:14] <prpplague> pcpower: he used a low power led
  160. [00:55:23] <prpplague> pcpower: not all leds have the same value
  161. [00:55:32] <prpplague> pcpower: the led is currently on?
  162. [00:55:43] <pcpower> yes
  163. [00:56:07] <pcpower> my led is very small
  164. [00:56:19] <prpplague> pcpower: echo 0 > value
  165. [00:56:25] <prpplague> pcpower: then do: cat value
  166. [00:56:25] <pcpower> it is already 0
  167. [00:56:32] <pcpower> cat value is 0
  168. [00:56:36] <pcpower> tried changing it to 1 also
  169. [00:56:38] <pcpower> no difference
  170. [00:56:42] <pcpower> and cat value reads 1
  171. [00:57:04] <prpplague> pcpower: echo in > direction
  172. [00:57:49] <prpplague> pcpower: led off?
  173. [00:58:00] <pcpower> nope
  174. [00:58:14] <prpplague> pcpower: do a cat on direction
  175. [00:58:24] <pcpower> it's in
  176. [00:58:35] <prpplague> pcpower: you have a multimeter?
  177. [00:58:39] <pcpower> yes
  178. [00:58:50] <prpplague> pcpower: set the direction back to output
  179. [00:59:14] <prpplague> pcpower: remove the led, and test the pin voltage with the value set at 0 and to 1
  180. [00:59:22] <prpplague> pcpower: you should be able to toggle back and forth
  181. [00:59:30] <pcpower> which leads on which pins?
  182. [01:00:23] <prpplague> pcpower: black lead of your multimeter to ground, and red lead to pin 4
  183. [01:00:50] <prpplague> pcpower: i have to go, i'll be back online in a couple hours
  184. [01:00:58] <pcpower> ok
  185. [01:01:11] <prpplague> pcpower: check to make sure you can toggle back and forth
  186. [01:01:17] <pcpower> I can
  187. [01:01:22] <pcpower> 0.0v and 1.8v
  188. [01:01:46] <prpplague> pcpower: so you are good
  189. [01:02:02] <prpplague> pcpower: software is working
  190. [01:02:13] <prpplague> pcpower: probably something with the LED
  191. [01:02:17] <prpplague> i have to go now
  192. [01:02:19] <pcpower> ok
  193. [01:02:25] <prpplague> i'll be back later, feel free to ping me
  194. [01:02:28] * prpplague (~danders@nat/ti/x-xmuiugagomzsvaox) Quit (Quit: Leaving)
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  198. [01:14:03] <twood_jiang> hi, I ask the??android??manually mount??sdard, android apps??detect??sdcard??directory,how to??solve?
  199. [01:14:06] <twood_jiang> thanks
  200. [01:15:56] * robtow (~rob@nat/ti/x-tawdxpkptfjkbiwe) Quit (Quit: Leaving.)
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  209. [01:59:28] <Mano> Guys, can we install 64 bit ubuntu on pandaboard?
  210. [01:59:45] * TheUni (~theuni@173.208.90.24) has joined #pandaboard
  211. [01:59:46] * TheUni (~theuni@173.208.90.24) Quit (Changing host)
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  214. [02:07:24] <ShadowJK> ...
  215. [02:07:45] <ShadowJK> Mano: no
  216. [02:08:13] <Mano> is it 32 bit then?
  217. [02:09:28] <ShadowJK> You can't install x86/i386 32-bit Ubuntu either
  218. [02:10:22] <ShadowJK> Because Pandaboard uses ARM v7 architecture, not Intel
  219. [02:10:40] <Mano> ohk, thanks
  220. [02:10:55] <Mano> Would you also have knowledge about robot operating system (ROS)
  221. [02:11:00] <Mano> if it could be installed on Pandaboard
  222. [02:12:34] * htns (~htns@175.139.210.69) Quit (Quit: Leaving)
  223. [02:13:20] <pcpower> Mano: you can cross-compile ROS for ARM and run it on Ubuntu/ARM
  224. [02:13:23] <ShadowJK> Never heard of ros
  225. [02:13:51] <pcpower> http://ros-users.122217.n3.nabble.com/How-to-cross-compile-ROS-on-arm-td184101.html
  226. [02:14:02] <Mano> nice, cool! would you know about point cloud library working on this cross compiled ros?
  227. [02:15:21] <Mano> thanks for the link <pcpower>
  228. [02:17:09] <pcpower> I know nothing about ROS
  229. [02:17:16] <pcpower> I only know how to use le google
  230. [02:18:46] <Mano> okay :)
  231. [02:19:30] <Sonicadvance1> ARM needs to bump up to 64bit :D
  232. [02:23:06] <ShadowJK> or atleast 36-38 :)
  233. [02:24:36] * MMlosh (~MMlosh@2001:470:1f0b:b78:5858:add0:c813:6039) Quit (Excess Flood)
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  235. [02:28:48] * bparker06 (~bparker@fiveforty.net) Quit (Ping timeout: 246 seconds)
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  238. [09:20:27] * PandaLogBot (~PircBot@teddy.pandaboard.org) has joined #pandaboard
  239. [09:20:27] * Topic is 'OMAP discussion & development on PandaBoard Platform | Site: http://www.PandaBoard.org | Paste @ http://pastebin.pandaboard.org/ |Wiki: http://www.omappedia.com/wiki/PandaBoard | IRC logs: http://www.pandaboard.org/pbirclogs/ | IRC Guide: http://tinyurl.com/ircsurvivalguide'
  240. [09:20:27] * Set by orbarron!~orb@nat/ti/x-ztoqabxrceydslsj on Mon Jun 06 15:00:29 UTC 2011
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  251. [10:01:47] <godheart001> hi
  252. [10:02:05] <godheart001> sorry that i disturb you
  253. [10:02:16] <godheart001> but i would like to ask somethink
  254. [10:02:24] <godheart001> about buying pandaboard
  255. [10:03:15] <av500> ask
  256. [10:03:27] <godheart001> i live in the centre of europe
  257. [10:03:34] <godheart001> and 3 webshop is good for me
  258. [10:03:52] <godheart001> and since two weeks every shops write: Stock 0
  259. [10:04:12] <godheart001> watterott is the best choice for me because of tha tax
  260. [10:04:43] <godheart001> i wrote a letter to them 2 weeks ago
  261. [10:05:16] <godheart001> and they said that last week day got some... every day i see their page.. but nothing
  262. [10:05:34] <godheart001> its so sadly.. so whats the situation?
  263. [10:05:46] <godheart001> pandaboard is game over? or what?
  264. [10:06:27] <av500> order
  265. [10:06:29] <av500> wait
  266. [10:06:30] <av500> receive
  267. [10:06:45] <av500> the stock is always 0
  268. [10:06:49] <godheart001> yes but i cant preorder the devide in watterott..
  269. [10:06:55] <godheart001> omg :\
  270. [10:06:57] <av500> because every board produced is sold
  271. [10:07:50] <godheart001> so u advice that dont wait for watterott.. preorder from another site.. and wait..
  272. [10:08:16] <av500> you cannot order at watterott?
  273. [10:08:23] <godheart001> i cant
  274. [10:09:05] <godheart001> because they said to me in letter (email), in their webshop preorder does not work
  275. [10:09:40] <av500> ah
  276. [10:09:45] <godheart001> and this is real.. unfortunately
  277. [10:09:54] <av500> then order at digikey
  278. [10:10:09] <av500> digikey.de is free shipping
  279. [10:10:52] <godheart001> hmm i never heard about digikey.de.. only dikigey.com.
  280. [10:11:00] <godheart001> thx man i check the page
  281. [10:11:02] * TheSeven (~TheSeven@rockbox/developer/TheSeven) has joined #pandaboard
  282. [10:11:07] <godheart001> and i hope the best
  283. [10:12:05] * botao_sun (~botao_sun@linaro/botao-sun) Quit (Ping timeout: 258 seconds)
  284. [10:12:36] <av500> digikey has several eu websites
  285. [10:21:39] <Sonicadvance1> so apparently that ppa is a mess
  286. [10:22:04] <Sonicadvance1> Has it's dependencies messed up
  287. [10:23:09] <Sonicadvance1> oh hey
  288. [10:23:18] <Sonicadvance1> It says to follow some instructions that I never followed
  289. [10:23:24] <Sonicadvance1> That might be helpful
  290. [10:23:37] <av500> thats just a decoy
  291. [10:27:01] <Sonicadvance1> sounds reasonable
  292. [10:27:24] * micadeyeye (~micadeyey@alonzo.artifactual.org.za) has joined #pandaboard
  293. [10:27:27] <Sonicadvance1> always making it hard to run my damn program! D:<
  294. [10:33:12] * zyga (~zyga@linaro/zyga) Quit (Quit: Ex-Chat)
  295. [10:37:48] * Spider-Pork (~Spider-Po@host39-232-static.225-95-b.business.telecomitalia.it) Quit (Quit: KVIrc 4.1.1 Equilibrium http://www.kvirc.net/)
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  299. [10:57:05] <twood_jiang> hi ,I use omapzoom p-android-omap-2.6.25 kernel,sometimes kernel mmc errormmcblk0: error -84 transferring data
  300. [10:57:20] <twood_jiang> thans
  301. [10:57:22] <twood_jiang> thanks
  302. [11:12:34] * lanthan_afh (~ze@p50992b91.dip0.t-ipconnect.de) Quit (Quit: Ex-Chat)
  303. [11:21:18] * godheart001 (5b52d972@gateway/web/freenode/ip.91.82.217.114) Quit (Quit: Page closed)
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  333. [13:13:11] * ceyusa (~vjaquez@cpe-68-175-57-159.nyc.res.rr.com) Quit (Ping timeout: 240 seconds)
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  335. [13:21:26] <Sonicadvance1> So is there any ability at all to use the hardware rasterizer under Ubuntu?
  336. [13:22:20] * sumits (~sumit@linaro/sumits) Quit (Quit: Leaving)
  337. [13:26:00] * tlei (~ming@119.136.66.206) Quit (Ping timeout: 260 seconds)
  338. [13:28:48] <Sonicadvance1> I see there is a pvr-bin-5.3.0.0049 available for meego that has the dri file I'm looking for. I assume it isn't just a drag and drop solution now?
  339. [13:36:39] <av500> meego?
  340. [13:36:44] <av500> there is not even meego for panda
  341. [13:37:24] <Sonicadvance1> mmmmmm
  342. [13:37:37] <Sonicadvance1> It's for omap4 though
  343. [13:37:45] <av500> ah
  344. [13:37:51] <av500> where?
  345. [13:38:04] * tlei (~ming@119.136.65.222) has joined #pandaboard
  346. [13:39:25] <Sonicadvance1> eh, http://140.211.166.227/MeeGo/builds/1.0.80/1.0.80.11.20100720.1/non-oss/repos/source/ that one
  347. [13:39:57] <av500> yes, intel wimax in the same folder
  348. [13:39:59] <Sonicadvance1> ah, it's i32
  349. [13:40:02] <av500> you are sure this is for panda?
  350. [13:40:05] <Sonicadvance1> a32 >>
  351. [13:40:06] <Sonicadvance1> failure
  352. [13:40:25] <Sonicadvance1> combined a couple files in my head
  353. [13:40:43] <av500> amazing
  354. [13:40:59] <av500> in your head they run fine :)
  355. [13:41:15] <Sonicadvance1> :/
  356. [13:41:22] <Sonicadvance1> I need hardware rasterization damn it
  357. [13:41:42] <av500> you on ubuntu?
  358. [13:41:50] <Sonicadvance1> yes
  359. [13:41:52] <av500> that should work with them PPAs
  360. [13:41:56] <av500> if not, shout at ogra_
  361. [13:41:59] <av500> and ndec
  362. [13:42:08] <Sonicadvance1> It uses Mesa software rasterizer
  363. [13:42:34] <Sonicadvance1> since there is no pvr_dri
  364. [13:42:48] <av500> Sonicadvance1: you are aware the omap4 has no full GL support?
  365. [13:42:55] <av500> only GLES
  366. [13:43:01] <Sonicadvance1> yes :|
  367. [13:43:06] <av500> ok
  368. [13:43:08] <av500> just asking
  369. [13:46:19] <Sonicadvance1> Or maybe I'm just chasing after some mystical white unicorn
  370. [13:46:24] <Sonicadvance1> I'm quite tired at this point
  371. [13:47:52] * ogra_ (~ogra@p5098ed03.dip0.t-ipconnect.de) Quit (Excess Flood)
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  380. [14:05:32] * LPhas (~phas@93.56.37.242) has joined #pandaboard
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  382. [14:18:16] <twood_jiang> hi, pandaboard dvi support 1080P?
  383. [14:19:12] <av500> should
  384. [14:19:46] <robclark> some hacking required
  385. [14:19:52] * cooloney (~roc@180.157.89.173) Quit (Quit: leaving)
  386. [14:20:35] <robclark> I guess someone would need to get DSI_PLL stuff working for wider support of resolutions on DVI..
  387. [14:20:39] <twood_jiang> can use dsi PLL generate 148Mhz
  388. [14:20:51] <twood_jiang> yes
  389. [14:20:56] <twood_jiang> I think so
  390. [14:21:17] <robclark> not sure.. I'm not the best expert at lowest level DSS stuff
  391. [14:25:11] <twood_jiang> I also??would like to ask, HDMI??and DVI??can??be??displayed??together
  392. [14:25:26] <LPhas> robclark, well basically i setup my pandaboard with ubuntu using these instructions http://dpaste.com/590386/
  393. [14:25:39] * pfefferz (~pfefferz@acadconf.joh.cam.ac.uk) has joined #pandaboard
  394. [14:25:56] <LPhas> i'll summarize
  395. [14:26:00] <av500> twood_jiang: yes
  396. [14:26:39] * robclark looks
  397. [14:26:51] <twood_jiang> Requires two??framebuffer
  398. [14:27:21] <robclark> twood_jiang, w/ DRM/KMS driver, requires only a single framebuffer
  399. [14:27:30] <robclark> for "virtual desktop" type things
  400. [14:27:40] <robclark> LPhas, are you still using 11.04 based filesystem?
  401. [14:28:07] <LPhas> nope
  402. [14:28:08] <LPhas> 10.10
  403. [14:28:11] <robclark> ok
  404. [14:28:41] <LPhas> summarizing i installed ubuntu 10.10, cloned licde, checkout 2115a0b6b6fccc27d6ecc274e37e57f2275f99c6, compiled it installed it copied custom firmware included with it
  405. [14:28:45] <robclark> LPhas, can you run 'uname -a'
  406. [14:28:47] <twood_jiang> thanks
  407. [14:29:04] <LPhas> then installed gst-ducati
  408. [14:29:12] <LPhas> Linux panda 2.6.35-980-omap4 #1release9-Ubuntu SMP PREEMPT Thu Dec 16 10:55:27 UTC 2010 armv7l GNU/Linux
  409. [14:29:29] * mlocke (~Adium@nat/ti/x-tfqyuxsselgtgsah) Quit (Remote host closed the connection)
  410. [14:29:32] <robclark> ok
  411. [14:29:50] <robclark> fwiw, use playbin2 (not playbin)
  412. [14:30:03] <LPhas> yep
  413. [14:30:07] * mlocke (~Adium@nat/ti/x-enwmlxopmfzvdwxx) has joined #pandaboard
  414. [14:30:20] <LPhas> what i get is a huge amount of
  415. [14:30:25] <LPhas> gstbasesink.c(2686): gst_base_sink_is_too_late (): /GstPlayBin2:playbin20/GstPlaySink:playsink0/GstBin:vbin/GstBin:bin0/GstV4l2Sink:v4l2sink0:
  416. [14:30:26] <LPhas> There may be a timestamping problem, or this computer is too slow.
  417. [14:30:32] <LPhas> and nothing played
  418. [14:31:33] <robclark> ok, first thing to check: follow instructions here http://gstreamer.freedesktop.org/wiki/DumpingPipelineGraphs
  419. [14:31:37] <robclark> to dump pipeline graph.
  420. [14:31:54] <robclark> (well you can figure it out from traces too, but graphically is pretty easy)
  421. [14:32:13] <robclark> this would tell you that it is actually picking the hw / gst-ducati elements
  422. [14:32:41] <robclark> IIRC, I think gst-ffmpeg elements were also ranked too highly so you could end up with a conflict between the two
  423. [14:33:18] * koen patches gst-ffmpeg to lower the rank
  424. [14:33:22] <robclark> the second thing to check, is disable av-sync and see if playback is fast enough.. do something like:
  425. [14:33:41] <robclark> gst-launch playbin2 uri=...blahblah... video-sink='v4l2sink sync=false'
  426. [14:34:05] <koen> - rank = GST_RANK_PRIMARY;
  427. [14:34:06] <koen> + rank = GST_RANK_SECONDARY;
  428. [14:34:17] <koen> ext/ffmpeg/gstffmpegdec.c line 2590
  429. [14:34:46] <robclark> yeah, I don't remember what state gst-ffmpeg is in original ubuntu packages, but if they are primary rank, they definitely need to be recompiled or uninstalled
  430. [14:35:03] * robclark usually ends up recompiling gst-ffmpeg anyways
  431. [14:35:13] <robclark> patching as suggested by koen
  432. [14:35:29] * mlocke (~Adium@nat/ti/x-enwmlxopmfzvdwxx) Quit (Remote host closed the connection)
  433. [14:35:36] <LPhas> ok, i'll try these three thing
  434. [14:35:47] <LPhas> but if the problem is only the plugin rank
  435. [14:36:08] <LPhas> i can try with a custom pipeline, can't i?
  436. [14:36:20] <robclark> yes
  437. [14:36:27] * robtow (~rob@nat/ti/x-fohhyfsgkaztcaxq) has joined #pandaboard
  438. [14:36:30] <robclark> probably something along the lines of:
  439. [14:37:27] <robclark> gst-launch filesink location=/blah/blah ! <somedemux> name=m m.video_00 ! queue ! nal2bytestream_h264 ! ducatih264dec ! queue ! v4l2sink
  440. [14:37:52] <LPhas> robclark, can you point me to a example file i can use for source that you know it works? so we can rule out i'm using some strange, bad compressed, weird stuff, video file?
  441. [14:38:42] <robclark> hmm, pretty much anything from yahoo or apple trailers should be well formed... bigbuckbunny should be ok..
  442. [14:40:35] * mlocke (~Adium@nat/ti/x-wyczmoijufkrkbzs) has joined #pandaboard
  443. [14:40:52] <LPhas> what codec/container shall i use? h264/mkv h264/mp4?
  444. [14:41:44] <robclark> mp4 probably... although in other cases (like w/ .webm) I've not had problems w/ mkv
  445. [14:41:57] <robclark> (but I guess mp4 has a lot more milage on it)
  446. [14:42:36] <LPhas> ok thx
  447. [14:42:45] <robclark> np
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  455. [14:57:53] * ChanServ sets mode +o GPSFan
  456. [15:00:39] <LPhas> robclark, http://pastebin.com/TGQGRE8n this is the full output (stdout & stderr) of gst-launch playbin2 uri=file:///home/phas/235168.mp4 video-sink="queue ! v4l2sink sync=false" &> out.log . what i get is a black window whitout a video in it
  457. [15:03:00] <robclark> LPhas, ok, it seems to still try to use omx..
  458. [15:03:10] <robclark> sudo rm /usr/lib/gstreamer-0.10/libgstomx*
  459. [15:07:43] * zyga (~zyga@linaro/zyga) has joined #pandaboard
  460. [15:08:50] <LPhas> robclark, still same behaviour, i'm waiting for it to finish to post the output while i try to get the graphical dump of the pipeline
  461. [15:09:04] <robclark> ok
  462. [15:09:53] <LPhas> robclark, http://pastebin.com/C2bsniVW
  463. [15:10:54] <robclark> well, that looks better-ish..
  464. [15:11:19] <robclark> try not making the window too small.. in fact try maximizing window..
  465. [15:11:22] * buckiller (~buckiller@192.94.92.14) has joined #pandaboard
  466. [15:11:43] <robclark> there are some downscaling limitations, so if you try to make 1080p video postage stamp size it won't really work
  467. [15:13:07] <LPhas> the window is almost fullscreen
  468. [15:13:20] <LPhas> on a 1080p screen
  469. [15:13:47] <robclark> ok, then next step would involve enabling some gst traces...
  470. [15:14:01] <robclark> adding --gst-debug="*ducati*:5", for example..
  471. [15:16:48] * fgiff (~fgiff@linaro/fgiff) Quit (Remote host closed the connection)
  472. [15:16:56] <LPhas> uhm that's strange
  473. [15:17:35] <LPhas> in ~/tmp (following the guide you gave to me to get the dots) i get a lot of file like this 0.00.18.636077880-gst-launch.warning.dot
  474. [15:17:40] <LPhas> but no one with PLAY in it
  475. [15:18:28] <LPhas> and another thing i need to mention
  476. [15:18:34] <robclark> would be helpful if you could send .dot file and traces
  477. [15:19:36] * skorgon (~skorgon@149.199.62.254) has joined #pandaboard
  478. [15:19:47] * skorgon (~skorgon@149.199.62.254) Quit (Changing host)
  479. [15:19:47] * skorgon (~skorgon@unaffiliated/skorgon) has joined #pandaboard
  480. [15:19:52] <LPhas> i use export DISPLAY=:0 to tell playerbin where to draw the video
  481. [15:19:54] <LPhas> is that ok?
  482. [15:20:25] <LPhas> i have a dotfile.tar.bz2 archive with dotfiles, how can i send it to you?
  483. [15:21:12] * micadeyeye (~micadeyey@alonzo.artifactual.org.za) Quit (Remote host closed the connection)
  484. [15:21:36] <LPhas> also the dumo with ducati traces will be quite long to just paste it on pastebin
  485. [15:24:17] <robclark> LPhas, yes use DISPLAY=:0
  486. [15:26:09] * ozk (~ozk@bzq-218-39-90.cablep.bezeqint.net) Quit (Ping timeout: 255 seconds)
  487. [15:32:15] * cheriff (~cheriff@188.29.60.132.threembb.co.uk) Quit (Ping timeout: 250 seconds)
  488. [15:35:28] <robclark> LPhas, log file you sent, it appears to be playing... or at least decoding ok
  489. [15:36:01] <robclark> hmm
  490. [15:37:00] * nhg (~a0864305@nat/ti/x-hpnzrtbmzcwggasq) has joined #pandaboard
  491. [15:37:02] * jayabharath (~jayabhara@nat/ti/x-lalrnjwfdjfxpvjk) has joined #pandaboard
  492. [15:37:03] <robclark> LPhas, let's try something.. shutdown X11 (sudo service gdm stop)
  493. [15:37:14] <robclark> and just try playing from raw cmdline
  494. [15:42:11] <LPhas> robclark, uhm i got the same output
  495. [15:42:39] <LPhas> no window, no video output... of course if there's no xorg server running
  496. [15:45:28] <robclark> LPhas, in theory it should be just fullscreen..
  497. [15:45:39] <robclark> but sounds like something going badly on display end of things..
  498. [15:46:01] <robclark> ok.. start simple: gst-launch videotestsrc ! stridetransform ! v4l2sink
  499. [15:46:10] <robclark> just for a test pattern
  500. [15:46:40] <robclark> oh, and first: sudo sh -c 'echo 1 > /sys/module/omapdss/parameters/debug'
  501. [15:46:55] <LPhas> shall i start gdm again?
  502. [15:46:59] <robclark> then run videotestsrc pipeline.. then dmesg > dmesg.txt and send that (or paste it)
  503. [15:47:04] <LPhas> before doing that?
  504. [15:47:13] <robclark> no.. keep X11 out of it for a minute.. let's figure out the display issues
  505. [15:47:18] <LPhas> ok
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  507. [15:51:55] * emeb (~ericb@ip72-223-93-59.ph.ph.cox.net) has joined #pandaboard
  508. [15:53:43] * PaulW_cdot (~Paul@142.204.133.81) has joined #pandaboard
  509. [15:55:16] * kth (~kth@unaffiliated/kth) has joined #pandaboard
  510. [15:55:50] * mlocke (~Adium@nat/ti/x-wyczmoijufkrkbzs) Quit (Quit: Leaving.)
  511. [15:55:53] <LPhas> robclark, http://pastebin.com/fnSGruzi
  512. [15:56:07] * ChanServ sets mode +o prpplague
  513. [15:56:57] * topfs2 (~topfs2@xbmc/staff/topfs2) has joined #pandaboard
  514. [15:56:58] <robclark> hmm, seems ok
  515. [15:57:11] <robclark> I guess you are using HDMI, right?
  516. [15:58:03] <robclark> if so, I guess the next thing I'd check is zorder.. /sys/devices/platform/omapdss/overlayN/zorder
  517. [15:58:12] <robclark> (IIRC... something roughly like that)
  518. [15:58:42] <robclark> echo 3 > overlay2/zorder (as root)
  519. [15:59:16] <robclark> (well.. if you have both /dev/fb0 and /dev/fb1, then the first video device will be overlay2.. otherwise it will be overlay1)
  520. [16:00:23] <LPhas> yep using hdmi
  521. [16:00:59] <LPhas> and i have both fb0 and fb1
  522. [16:01:04] <LPhas> so let see
  523. [16:01:48] <LPhas> ok done
  524. [16:01:54] <LPhas> what should i try to do now?
  525. [16:04:00] <prpplague> koen: doh, no email.....
  526. [16:04:57] <robclark> LPhas, no difference?
  527. [16:05:18] <robclark> well, cat overlay0/zorder and overlay2/zorder (those should be fb0 and video1 respectively)
  528. [16:06:06] * retzo (~kvirc@62.145.30.66) Quit (Quit: KVIrc 4.0.1 Insomnia http://www.kvirc.net/)
  529. [16:06:10] <LPhas> robclark,
  530. [16:06:11] <LPhas> GG
  531. [16:06:13] <LPhas> worked
  532. [16:06:16] <LPhas> what was that?
  533. [16:06:40] <robclark> worked after changing the zorder?
  534. [16:06:44] <LPhas> yep
  535. [16:07:21] <robclark> ok.. so video was always playing, but *behind* the framebuffer..
  536. [16:07:50] <robclark> which is the way you want it with X11... assuming you have the pvr xorg driver (which takes care to put "transparent pixels" where the video should be)
  537. [16:08:18] <robclark> LPhas, could you: dpkg -l | grep sgx
  538. [16:08:38] <mru> http://26-26-54.hardwarebug.org/81
  539. [16:09:05] <robclark> mru, indeed
  540. [16:09:28] * nighty__ (~nighty@TOROON12-1279662182.sdsl.bell.ca) Quit (Read error: Connection reset by peer)
  541. [16:10:45] <LPhas> robclark, http://pastebin.com/6XeJ6uz1
  542. [16:10:57] * fgiff (~fgiff@linaro/fgiff) has joined #pandaboard
  543. [16:11:56] <LPhas> robclark, should i expect that i will go back not working when i reboot?
  544. [16:12:23] <robclark> LPhas, hmm.. reboot, startup X, fire up gconf-editor, look somewhere under /apps/metacity/ find the 'compositing_manager' option, set to true
  545. [16:12:38] <robclark> (yes, settings go back to defaults when you reboot)
  546. [16:13:04] <robclark> IIRC, later versions of pvr xorg driver work properly when xrender compositing is enabled, but not so much otherwise
  547. [16:13:15] <robclark> whereas earlier versions were other way around
  548. [16:13:53] <robclark> (which is probably my fault)
  549. [16:15:20] <LPhas> robclark, well, you was great anyway
  550. [16:15:48] <LPhas> can i ask just another small question?
  551. [16:16:01] <robclark> sure
  552. [16:16:48] <LPhas> can't help but notice (:p) that pandaboard has two hdmi out... let say i wish to play two 1080p video streams at the same time on two screens... is that asking too much?
  553. [16:17:23] <robclark> LPhas, I've seen it with my own two eyes..
  554. [16:17:30] <LPhas> robclark, amazing
  555. [16:17:35] <robclark> although maybe not straightforward to get working..
  556. [16:17:49] * kth (~kth@unaffiliated/kth) Quit (Quit: Leaving.)
  557. [16:17:56] <LPhas> atm knowing that it's possible is enough
  558. [16:18:01] <robclark> there are some kernel patches somewhere for DVI on the 10.10 kernel...
  559. [16:18:35] <robclark> you need to take some precautions, like running video clips from ramdisk so mmc card isn't getting in the way..
  560. [16:18:41] <robclark> few tweaks like that
  561. [16:18:42] * nhg (~a0864305@nat/ti/x-hpnzrtbmzcwggasq) Quit (Remote host closed the connection)
  562. [16:18:47] <LPhas> mmh, so no big stuff
  563. [16:19:05] <LPhas> even not from a usb hard drive?
  564. [16:19:21] <robclark> it is a bit more than 4430 is spec'd for... so it is just right on the edge of possible, let's say
  565. [16:20:09] * nhg (~a0864305@nat/ti/x-lxuzldsyuqpiyiqd) has joined #pandaboard
  566. [16:20:17] <LPhas> robclark, more realistic with two 720p streams?
  567. [16:20:22] <robclark> yeah
  568. [16:20:30] <LPhas> or a 1080i? not sure if it's better
  569. [16:20:46] <robclark> it is spec'd for that (or as it is phrased in marketing material, 720p30 3d)
  570. [16:21:02] <robclark> I guess 1080i.. I've never tried that
  571. [16:21:07] <LPhas> that's just fine
  572. [16:21:07] <robclark> but ymmv
  573. [16:23:27] <LPhas> mmmh i set /apps/metacity/general/composite_manager to true
  574. [16:23:41] <LPhas> then rebooted, but... black window
  575. [16:23:57] <robclark> hmm.. ...
  576. [16:24:15] <robclark> well, you can set zorder to force overlay to front and at least see something
  577. [16:25:06] * robclark (~robclark@nat/ti/x-nbckacjqlqjafayo) Quit (Remote host closed the connection)
  578. [16:26:19] * MrCurious_ (~MrCurious@67.58.47.190) has joined #pandaboard
  579. [16:26:47] * robclark (~robclark@nat/ti/x-notnlipzfvcwjmns) has joined #pandaboard
  580. [16:26:47] * ChanServ sets mode +o robclark
  581. [16:28:15] * jojobest (~joffrey@192.93.161.12) has left #pandaboard
  582. [16:29:50] <LPhas> robclark, do you mean that i should cat 3 to zorder during bootup?
  583. [16:29:58] <robclark> yeah
  584. [16:31:33] * LPhas google how to do that cause he isn't using ubuntu in years
  585. [16:33:17] <LPhas> ok let's reboot and see
  586. [16:33:47] <LPhas> last question: i read that pandaboard has also hardware encoders other than decorders for h264 and other codecs
  587. [16:33:52] * RCFwork (~klaas@85.255.197.126) Quit (Quit: Leaving.)
  588. [16:34:31] <LPhas> have i to configure other stuff to have them working or gst-ducati should support them?
  589. [16:35:47] <robclark> LPhas, to date, no one has added encoder support in gst-ducati.. and at the time of 10.10 we didn't have the ok to release binaries for encoders..
  590. [16:36:00] <LPhas> ok
  591. [16:36:14] <robclark> since then, there are a handful of encoders released (as binary): h264, mpeg4, mjpeg...
  592. [16:36:48] * phdeswer (~philippe@80-186-130-171.elisa-mobile.fi) Quit (Ping timeout: 240 seconds)
  593. [16:37:19] <robclark> so in theory someone could write encoder support for gst-ducati
  594. [16:37:46] <LPhas> and... sorry that wasn't the last question :( i get some issues with audio. when i boot ubuntu i get loud white noise and then the boot sound
  595. [16:37:59] <LPhas> and sometimes i also get white noise before a sound
  596. [16:38:54] <robclark> audio I don't know much about...
  597. [16:40:04] <LPhas> well let see if someone else comes up
  598. [16:41:01] <prpplague> Bryanstein: first samples of bamboo are here
  599. [16:41:08] <prpplague> Bryanstein: looks pretty good
  600. [16:41:16] <prpplague> Bryanstein: gotta tweak it a little
  601. [16:45:55] * cheriff (~cheriff@188.29.208.182.threembb.co.uk) has joined #pandaboard
  602. [16:50:01] * phdeswer (~philippe@80-186-207-80.elisa-mobile.fi) has joined #pandaboard
  603. [16:54:46] <Bryanstein> prpplague, sounds great...I'm probably more excited about it than you are lol
  604. [16:55:51] <prpplague> Bryanstein: hehe
  605. [17:04:01] * LPhas (~phas@93.56.37.242) Quit (Quit: Leaving)
  606. [17:11:21] <alex4nder> yoh
  607. [17:23:11] * v2v (~v2v@gw1.soctronics.com) has joined #pandaboard
  608. [17:24:52] <koen> prpplague: same here, no email
  609. [17:26:35] * robclark (~robclark@nat/ti/x-notnlipzfvcwjmns) Quit (Remote host closed the connection)
  610. [17:27:39] * sassmann (~sassmann@nrbg-4dbfd7fa.pool.mediaWays.net) Quit (Ping timeout: 255 seconds)
  611. [17:32:07] * alastor9 (597c70a2@gateway/web/freenode/ip.89.124.112.162) has joined #pandaboard
  612. [17:32:51] <alastor9> Hello. Is power management + cpu power management working on Natty ?
  613. [17:33:23] <alastor9> I am interested in cpu frequency scaling in particular.
  614. [17:39:28] <alastor9> The kernel configuration is confusing as I can enable power management, frequency scaling, etc but there are only 2 PM layers to choose from: no PM or no-op/debug PM, which is dummy.
  615. [17:45:06] * cheriff (~cheriff@188.29.208.182.threembb.co.uk) Quit (Ping timeout: 246 seconds)
  616. [17:49:10] <alastor9> echo "Hello"
  617. [17:49:16] <alastor9> .....
  618. [17:49:35] <prpplague> koen: it was like Christmas morning, rush to my pc to check my email and there was nothing.....
  619. [17:52:40] * cheriff (~cheriff@188.28.14.231.threembb.co.uk) has joined #pandaboard
  620. [17:52:50] <koen> prpplague: did you check the stockings?
  621. [17:53:08] <prpplague> koen: not this morning, i heard they were up some
  622. [17:53:43] <prpplague> koen: hey, don't suppose you know of a linux tool to give you some detail info on a vfat formated partition?
  623. [17:54:40] * pfefferz (~pfefferz@acadconf.joh.cam.ac.uk) Quit (Quit: Leaving)
  624. [17:55:50] <koen> prpplague: no, av500 is the fat master
  625. [17:56:06] * prpplague agrees with that statement
  626. [17:57:20] <koen> I had to think a bit on the phrasing of that
  627. [17:58:20] * bo09 (~borgan@ip68-105-60-156.pn.at.cox.net) Quit (Quit: Leaving)
  628. [17:58:48] <prpplague> koen: hehe
  629. [18:00:20] * alastor9 (597c70a2@gateway/web/freenode/ip.89.124.112.162) Quit (Ping timeout: 252 seconds)
  630. [18:01:37] * nhg (~a0864305@nat/ti/x-lxuzldsyuqpiyiqd) has left #pandaboard
  631. [18:01:46] * agreen is now known as agreen-away
  632. [18:02:05] <MrCurious_> prpplague: found out last night that i get a better frame rate from my kinect on pandaboard than i did off a dual core 1.8ghz atom with nvidia ion
  633. [18:02:09] <MrCurious_> go figure huh
  634. [18:02:15] <prpplague> MrCurious: yea i saw
  635. [18:02:19] <prpplague> MrCurious: interesting
  636. [18:02:35] <MrCurious_> i guess every platform has its issues
  637. [18:03:27] <TheSeven> prpplague: what kind of information are you looking for?
  638. [18:04:58] <prpplague> TheSeven: number of hidden sectors, number of reserved sectors, logic sector size, and sectors per cluster
  639. [18:05:23] <prpplague> TheSeven: trying to compare why a windows formated thumb drive works on a device, but the same item formated under linux doesn't
  640. [18:05:58] <ds2> is it formated the same way? i.e. FAT16 vs FAT32 etc?
  641. [18:05:59] * nhg (~a0864305@nat/ti/x-lxuzldsyuqpiyiqd) has joined #pandaboard
  642. [18:06:38] <TheSeven> prpplague: if you paste a hexdump of the first sector I can decipher the differences for you :)
  643. [18:06:38] * robclark (~robclark@LMontsouris-156-26-29-15.w80-14.abo.wanadoo.fr) has joined #pandaboard
  644. [18:06:38] * ChanServ sets mode +o robclark
  645. [18:06:53] <prpplague> ds2: yea both are FAT32
  646. [18:07:35] <prpplague> TheSeven: yea i guess i can just dump the first sector of both and do some diffs
  647. [18:07:55] <prpplague> TheSeven: just figured there would be some tool to decode the info easily
  648. [18:08:07] <TheSeven> well, I have such a tool, but it's for windows
  649. [18:08:18] <TheSeven> hm, maybe it runs on wine...
  650. [18:09:42] <prpplague> ahh
  651. [18:11:18] <TheSeven> http://www.x-ways.net/winhex/index-m.html is my swiss army knife for that kind of thing :)
  652. [18:11:35] <TheSeven> not sure if the eval is sufficient for this though (I have the specialist edition)
  653. [18:11:58] <TheSeven> but I'm fairly sure that it works on wine at least so some degree
  654. [18:13:15] <_av500_> winhex ftw
  655. [18:13:19] <_av500_> for fat32 debug
  656. [18:13:43] <TheSeven> not only for that :)
  657. [18:13:46] <_av500_> prpplague: read my article
  658. [18:13:51] <TheSeven> has a lot of other very useful features as well
  659. [18:14:02] <prpplague> _av500_: url?
  660. [18:14:07] <_av500_> gee
  661. [18:14:20] <_av500_> google "solving the omap boot mystery"
  662. [18:14:38] <_av500_> prpplague: linux formats per fat spec, windows does not
  663. [18:14:44] * thaytan (~jan@ppp59-167-167-201.static.internode.on.net) Quit (Ping timeout: 250 seconds)
  664. [18:14:58] <_av500_> if the sectors per partition is an odd number
  665. [18:16:28] <prpplague> _av500_: ahh the article is in regards to omap booting
  666. [18:16:37] <_av500_> yes
  667. [18:17:07] <_av500_> i assume that when i hear FAT on this channel :)
  668. [18:18:19] <prpplague> _av500_: ahh
  669. [18:18:25] <prpplague> _av500_: yea slightly different issue
  670. [18:18:32] <prpplague> but useful info
  671. [18:18:46] <_av500_> which issue?
  672. [18:19:47] <prpplague> _av500_: i have a device that will recognize a windows formated thumb drive, but not a linux formated one
  673. [18:19:58] <_av500_> you?
  674. [18:20:05] <_av500_> some other guy here had that
  675. [18:20:09] <_av500_> check your logs
  676. [18:20:15] <_av500_> i gave him a ton of advice
  677. [18:20:33] <TheSeven> prpplague: just upload the superblocks somewhere and I'll tell you what's going on :)
  678. [18:20:47] <_av500_> prpplague: but if the device is as anal as omap ROM code....
  679. [18:21:10] <_av500_> prpplague: what device?
  680. [18:21:17] <prpplague> _av500_: can't say atm
  681. [18:21:21] <_av500_> pah
  682. [18:21:28] <_av500_> i cant say more then eithet
  683. [18:21:30] <_av500_> either
  684. [18:21:40] <_av500_> sorry, all these NDAs
  685. [18:21:47] <_av500_> and MBAs
  686. [18:21:51] <_av500_> and ICBMs
  687. [18:23:03] <prpplague> hehe
  688. [18:27:35] * thaytan (~jan@ppp59-167-167-201.static.internode.on.net) has joined #pandaboard
  689. [18:32:44] * mdomsch (~mdomsch@cl-283.dal-01.us.sixxs.net) has joined #pandaboard
  690. [18:37:26] * Andre_H (~german_wi@pD9530923.dip0.t-ipconnect.de) has joined #pandaboard
  691. [18:56:10] <jayabharath> prpplague: ping
  692. [18:56:18] <prpplague> pong
  693. [18:56:45] <jayabharath> was looking at the schematics of the animal LVDS board (http://elinux.org/Animal_LVDS_Board) - I somehow thought there was a foot print for eMMC.. no?
  694. [18:57:21] <prpplague> jayabharath: no, we have a footprint on the trinity board
  695. [18:57:31] <prpplague> jayabharath: something specific you are needing?
  696. [18:57:34] <jayabharath> oh ok
  697. [18:57:52] <jayabharath> Someone was asking about a reference schematic to connect a eMMC to Panda Rev A3....
  698. [18:57:57] <jayabharath> I wanted to share something with them...
  699. [18:58:03] <jayabharath> This someone is external (no NDA)
  700. [18:58:09] <jayabharath> no ICBM
  701. [18:58:11] <jayabharath> no MBA
  702. [18:58:12] <jayabharath> ;)
  703. [18:58:42] * dl9pf (~quassel@opensuse/member/dl9pf) Quit (Remote host closed the connection)
  704. [18:58:55] * CaptainCrunch (~ken@HSI-KBW-091-089-142-207.hsi2.kabel-badenwuerttemberg.de) has joined #pandaboard
  705. [18:59:01] <prpplague> jayabharath: there is nothing special about eMMC to the expansion header, its all one to one pin connections
  706. [18:59:23] * phdeswer (~philippe@80-186-207-80.elisa-mobile.fi) Quit (Ping timeout: 250 seconds)
  707. [18:59:44] <jayabharath> Yeah.. somehow a lot of folks needs spoon feeding
  708. [19:00:00] <prpplague> jayabharath: are you sure it is really eMMC?
  709. [19:00:07] <jayabharath> yes
  710. [19:02:43] * phdeswer (~philippe@80-186-207-80.elisa-mobile.fi) has joined #pandaboard
  711. [19:03:39] * ericb2 (~X@unaffiliated/ericb2) has joined #pandaboard
  712. [19:03:42] <ericb2> hello
  713. [19:03:58] <ericb2> is it possible that some SD card do _not_ work with the Panda ?
  714. [19:04:42] <ericb2> I bought an expensive one (32GB / class 10) and no way to run Ubuntu with it :/
  715. [19:04:51] <TheSeven> ericb2: how is it behaving?
  716. [19:04:55] <TheSeven> which manufacturer?
  717. [19:06:01] <ericb2> Lexar
  718. [19:06:23] <ericb2> Premium series bla bla ..
  719. [19:06:49] <TheSeven> ericb2: use sandisk if you want decent performance, but in theory every card should work...
  720. [19:06:57] <TheSeven> so what's going on?
  721. [19:07:35] <ericb2> TheSeven: I got issues with the previous card : the fs is remounted in read only mode every time, and I was upset with that
  722. [19:08:03] * phdeswer (~philippe@80-186-207-80.elisa-mobile.fi) Quit (Ping timeout: 250 seconds)
  723. [19:12:00] <ericb2> the card causing trouble is a 32GB / Trancend (class 10)
  724. [19:12:21] <ericb2> was perfect with the Beagleboard (unfortunaly dead since)
  725. [19:12:50] <TheSeven> hm, I have a 32GB transcend class 10 as well
  726. [19:13:01] <TheSeven> it's working fine except for awful random access performance
  727. [19:13:31] <ericb2> TheSeven: I'm building OOo4Kids / OOoLight with it. And this is a big R/W stress, indeed
  728. [19:13:31] <TheSeven> how is the lexar card behaving? does it boot at all?
  729. [19:13:46] <TheSeven> hm, I wouldn't do that on an SD card
  730. [19:13:51] <ericb2> TheSeven: no boot
  731. [19:14:33] <TheSeven> so the board behaves as if there was no card at all?
  732. [19:15:16] * orbarron (~orb@nat/ti/x-vyprrcdycjdskfll) has joined #pandaboard
  733. [19:15:19] <ericb2> TheSeven: the system (Ubuntu on this machine) boots. Then there is a check ... a resize .. and once done the reboot fails
  734. [19:16:21] <ericb2> TheSeven: in fact, there is only one problematic card : the Lexar. All the other one work as expected, excepted the transcend blessed with the R only issue
  735. [19:16:57] * MMlosh (~MMlosh@2001:470:1f0b:b78:8d2:aa6f:8532:d542) Quit (Remote host closed the connection)
  736. [19:17:10] <_av500_> ericb2: that has been reported before
  737. [19:17:31] <ericb2> _av500_: ah ? Is there a bug report somewhere ?
  738. [19:17:36] <_av500_> no idea
  739. [19:17:49] <_av500_> but people had that "resize hangs" issue
  740. [19:18:26] * MMlosh (~MMlosh@2001:470:1f0b:b78:5cc6:efd8:20af:c6b) has joined #pandaboard
  741. [19:18:45] <ericb2> _av500_: the only track I found is that the cylinder number is not exactly rounded or something like that
  742. [19:19:39] <ericb2> _av500_: but the Ubuntu way to install is dd ... if= of=/dev/sdX, and I do not know how to fix the probably parttion table issue
  743. [19:25:24] * ericb2 seriously thinks to use nfs
  744. [19:27:15] * cheriff (~cheriff@188.28.14.231.threembb.co.uk) Quit (Ping timeout: 276 seconds)
  745. [19:28:07] <MrCurious_> ericb2: i tried a class 10 20mb/s it failed as well
  746. [19:28:17] <MrCurious_> fall back to a class 4 and it will work
  747. [19:28:50] <ericb2> MrCurious_: I paid this card a lot of money and I'd like to understand
  748. [19:29:18] <MrCurious_> ok. best of luck
  749. [19:29:39] <ericb2> MrCurious_: this s probably something silly, but I'd like to understand
  750. [19:29:58] <ericb2> is there a way to visualize the boot ? The serial probably ?
  751. [19:30:04] <MrCurious_> let me try
  752. [19:30:21] <MrCurious_> the timings in ubuntu on pandaboard are not compatible with the timings on the class 10 cards
  753. [19:30:52] <ericb2> MrCurious_: in the kernel ?
  754. [19:31:03] <MrCurious_> that would be my guess
  755. [19:31:22] <MrCurious_> on the mailing list, nobody has come forward with a speed 10 card working that i have seen
  756. [19:31:40] <MrCurious_> my solution was to fall back to a 4, and have the boot switch to booting off usb
  757. [19:32:17] <TheSeven> MrCurious_: the class has nothing to do with the link transfer rates
  758. [19:32:43] <TheSeven> and as I said my transcend class10 32gb card is working fine, except for the usual slowness
  759. [19:33:17] <MrCurious_> my class 10 20mbs/ doesnt work reliably in panda. but when tested in a pc and a droid tablet works flawlessly
  760. [19:33:33] <ericb2> TheSeven: indeed, some 10s freeze occur often with it
  761. [19:33:42] * cheriff (~cheriff@188.28.8.103.threembb.co.uk) has joined #pandaboard
  762. [19:35:29] <MrCurious_> have you dried pandroid on the card or ubuntu?
  763. [19:35:57] <MrCurious_> *tried
  764. [19:37:03] <TheSeven> natty
  765. [19:37:40] <MrCurious_> might be an interesting test to try pandroid to see if it has similar problems
  766. [19:40:50] * topfs2 (~topfs2@xbmc/staff/topfs2) Quit (Quit: Leaving)
  767. [19:43:36] * zyga (~zyga@linaro/zyga) Quit (Ping timeout: 260 seconds)
  768. [19:49:54] * jojobest (~joffrey@76.22.100.84.rev.sfr.net) has joined #pandaboard
  769. [19:52:55] * rcf (~rcf@44.133-243-81.adsl-dyn.isp.belgacom.be) has joined #pandaboard
  770. [19:54:22] * hitlin37_ (b64723e4@gateway/web/freenode/ip.182.71.35.228) Quit (Ping timeout: 252 seconds)
  771. [19:58:35] <ericb2> the last message at first launch is : rebooting in configuration session
  772. [19:58:45] <ericb2> at reboot, there is a timeout, and I got a shell
  773. [20:09:01] <ericb2> the message says : no init found. Try passing init= bootarg
  774. [20:09:31] <ericb2> got a shell (ash from Busybox) saying: (initramfs)
  775. [20:09:58] <ericb2> what are the arguments I can pass with the command line ? Maybe I can fix the issue
  776. [20:17:28] <pcpower> any electronics gurus around?
  777. [20:18:30] <prpplague> pcpower: ask away, if someone is available and can answer they will
  778. [20:18:50] <pcpower> so I was looking at this schematic and wanted to try it out myself
  779. [20:18:51] <pcpower> http://www.sparkfun.com/tutorial/Outlet/Relay-Schematic.jpg
  780. [20:19:00] <pcpower> for using pandaboard GPIO to control an AC relay
  781. [20:19:10] <pcpower> but it uses 5V control instead of 1.8V which panda uses
  782. [20:19:22] <pcpower> but I'm not sure what changes need to be made to the schematic
  783. [20:20:04] <pcpower> and I don't understand the use of the 1k resistors, especially by the LED, considering the LED being used here is 2volts, not 5
  784. [20:20:10] <pcpower> I would think the LED needs a 150ohm, not 1k
  785. [20:20:48] <pcpower> that and I don't know why there is the 1k and 10k resistors in front of the control switch
  786. [20:20:51] <pcpower> (I suck at electronics)
  787. [20:24:54] * ericb_ (~X@aud25-1-88-166-8-11.fbx.proxad.net) has joined #pandaboard
  788. [20:25:06] <ericb_> apologies .. was the battery, suddenly low
  789. [20:26:04] * ericb2 (~X@unaffiliated/ericb2) Quit (Ping timeout: 250 seconds)
  790. [20:27:00] * ericb_ (~X@aud25-1-88-166-8-11.fbx.proxad.net) Quit (Client Quit)
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  792. [20:27:11] * ericb_ (~X@aud25-1-88-166-8-11.fbx.proxad.net) Quit (Client Quit)
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  794. [20:31:35] * mdomsch (~mdomsch@cl-283.dal-01.us.sixxs.net) Quit (Quit: Leaving)
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  797. [20:36:34] * cmagina (~quassel@173-166-109-13-newengland.hfc.comcastbusiness.net) Quit (Remote host closed the connection)
  798. [20:38:04] * cmagina (~quassel@173-166-109-13-newengland.hfc.comcastbusiness.net) has joined #pandaboard
  799. [20:46:48] <prpplague> pcpower: http://led.linear1.org/why-do-i-need-a-resistor-with-an-led/
  800. [20:48:06] <prpplague> pcpower: http://www.youtube.com/watch?v=XxLKfAZrhbM
  801. [20:48:32] <prpplague> pcpower: you may want to purchase a basic electronics book
  802. [20:48:45] <prpplague> pcpower: and build up a few small circuits for experince
  803. [20:49:56] <prpplague> wmat: i guess ELC-E acceptance emails are late again this time
  804. [20:54:48] * bo09 (~borgan@ip68-105-60-156.pn.at.cox.net) has joined #pandaboard
  805. [20:56:43] <pcpower> prpplague: I know why you need a resistor for an led, I just don't get why he uses 1k for an LED is most likely rated for anywhere between 1.8-4 volts
  806. [20:56:53] <pcpower> which is most likely*
  807. [20:57:15] <TheSeven> 5V supply, approx. 2V voltage drop at the LED
  808. [20:57:21] * ssvb (~ssvb@a88-114-220-213.elisa-laajakaista.fi) has joined #pandaboard
  809. [20:57:31] <pcpower> that's 150ohm
  810. [20:57:32] <pcpower> not 1k
  811. [20:57:38] <pcpower> (unless I'm retarded)
  812. [20:57:43] <TheSeven> so 3V drop across the resistor => 3mA LED current
  813. [20:57:50] <TheSeven> that's usually sufficient for a small status LED
  814. [20:58:20] <pcpower> I thought you couldn't under-power it? (or pretty much anything)
  815. [20:58:35] * TheSeven doesn't understand that sentence
  816. [20:58:54] <pcpower> I thought it was bad to not give the LED its required amount of current
  817. [20:58:58] <pcpower> or is it just a range
  818. [20:59:26] * prpplague has work to do and lets TheSeven answer
  819. [21:00:23] <ericb2> ok using the serial, I can see lot of things. First, the sd card is guilty
  820. [21:00:49] <ericb2> I'll try to copy (manualy) the error, since there is no "less" in the busybox
  821. [21:01:30] * skorgon_ (~skorgon@149.199.62.254) has joined #pandaboard
  822. [21:01:30] * skorgon_ (~skorgon@149.199.62.254) Quit (Changing host)
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  824. [21:01:31] <ericb2> second, when I enter reboot, I can catch the shell in the serial, but only after I validate the reboot
  825. [21:01:33] <robtow> prplaague - ever figure out where that package went?
  826. [21:02:01] <robtow> err, "prplague" :-p
  827. [21:02:17] <robtow> damn I just cannot type today. Sigh.
  828. [21:03:07] * skorgon__ (~skorgon@149.199.62.254) has joined #pandaboard
  829. [21:04:19] <prpplague> robtow: yea i came back to my desk last week
  830. [21:04:24] * skorgon (~skorgon@unaffiliated/skorgon) Quit (Ping timeout: 240 seconds)
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  832. [21:04:29] <prpplague> robtow: not sure why
  833. [21:07:03] * skorgon_ (~skorgon@unaffiliated/skorgon) Quit (Ping timeout: 246 seconds)
  834. [21:11:06] * jluisn (~quassel@187.115.172.24) Quit (Remote host closed the connection)
  835. [21:18:52] <wmat> prpplague: yeah, those things are always later
  836. [21:19:08] <prpplague> wmat: bummer i need to make arraingments
  837. [21:21:06] <wmat> prpplague: yeah, I just checked the LF site and my sugmission is still status==new
  838. [21:21:14] <prpplague> wmat: mine as well
  839. [21:30:26] * TheSeven was away, so he couldn't answer :/
  840. [21:31:00] <TheSeven> hm, well, he didn't ask anything...
  841. [21:32:35] * ericb2 found the magic key and can read line per line what happens, and I recopied manualy what I catched :
  842. [21:32:36] <ericb2> http://paste.lisp.org/display/123918
  843. [21:32:59] <TheSeven> pcpower: less than maximum current => less than maximum brightness, but longer life of the LED
  844. [21:33:01] <ericb2> the same error, with other blocks occurs again
  845. [21:34:00] * ericb2 searching Linux kernel sources now ...
  846. [21:34:07] <ericb2> s/searching/downloading/
  847. [21:34:39] * cheriff (~cheriff@188.28.8.103.threembb.co.uk) Quit (Ping timeout: 276 seconds)
  848. [21:35:23] <ericb2> Maybe Lexar didn't pay the fee to TI ^^
  849. [21:35:46] <ericb2> .. stupid blancking not working is painfull
  850. [21:37:50] <ericb2> MrCuriousand you said the card is perfectly working elsewhere than ARM Linux ?
  851. [21:38:01] <ericb2> MrCurious in your case I meant
  852. [21:40:20] <pcpower> TheSeven: Ok. I'm still really confused... I've read lots of stuff about general electronics but some things still elude me
  853. [21:41:17] <pcpower> so like, panda gpio pin is 1.8 volt. LED is typical 2.1v/20mA, so I gather this just means it will be slightly less bright. but for example, say I want to reduce it down to 10mA
  854. [21:41:43] <pcpower> I don't understand how to do that
  855. [21:41:49] <TheSeven> well, the GPIO pin voltage doesn't matter here
  856. [21:41:58] <TheSeven> and I'm assuming that your supply voltage (for the relay) is 5V
  857. [21:42:07] <pcpower> there is no relay here
  858. [21:42:15] <TheSeven> the LED voltage drop stays almost constant, no matter how much current flows through it
  859. [21:42:15] <pcpower> in this example
  860. [21:42:25] <TheSeven> which example?
  861. [21:42:29] <pcpower> ok so
  862. [21:42:43] <pcpower> say I just want the LED straight on the gpio pin, with a resistor to halve the current
  863. [21:42:55] <pcpower> if I want max output, my guess is that no resistor is needed
  864. [21:43:04] <TheSeven> that highly depends on the LED
  865. [21:43:06] <pcpower> because the pin is only outputting 20mA anyway
  866. [21:43:09] <pcpower> which is the max for the led
  867. [21:43:16] <TheSeven> an ideal LED would either burn, or not work at all, if you have no resistor
  868. [21:43:31] <pcpower> but if the currents match ?
  869. [21:43:35] <pcpower> why do I need a resistor
  870. [21:43:41] <TheSeven> a real LED has a very small range in between where it *might* work properly without a resistor
  871. [21:43:47] <TheSeven> but I would always avoid doing that
  872. [21:44:09] <pcpower> I would think that just depends on the input current
  873. [21:44:10] <TheSeven> pcpower: the pin isn't "only outputting 20mA"
  874. [21:44:20] <pcpower> how so?
  875. [21:44:23] <TheSeven> it will just break if you draw more than about 10-20mA from it
  876. [21:44:55] <pcpower> when I set my meter to mA I got 21 on the pin
  877. [21:45:00] <TheSeven> ouch
  878. [21:45:06] <pcpower> why ouch?
  879. [21:45:08] <TheSeven> that's the very easiest way to damage the pin
  880. [21:45:12] <pcpower> how?
  881. [21:45:24] <TheSeven> because you created a short circuit, directly through the processor
  882. [21:45:32] <drd_> hey is there a way to test if my level shifter is working by itself? It's not clear which pin is pin 1 and it doesn't appear to be behaving correctly in the circuit
  883. [21:45:36] <pcpower> I don't get it.
  884. [21:46:22] <TheSeven> no marking on the package?
  885. [21:46:51] <TheSeven> pcpower: seriously, read up about electronics before breaking your board
  886. [21:47:27] <drd_> TheSeven: ya the schematics say there should be a little circle or a line, but I even looked at it under the microscope and there is nothing x.x
  887. [21:47:56] <TheSeven> drd_: what kind of package is that?
  888. [21:48:11] <pcpower> TheSeven: I have, it doesn't help me in this situation
  889. [21:48:36] <TheSeven> drd_: SOP8 or something?
  890. [21:49:02] <drd_> TheSeven: ya I don't remember what its called, its tiny and has little flat feet that I had to solder onto another board to plug into the bread board
  891. [21:49:37] <TheSeven> and there's no small "hole" on the top of the package, or at one of the edges?
  892. [21:50:01] <TheSeven> pcpower: apparently you haven't fully understood ohm's law yet
  893. [21:51:05] <drd_> TheSeven: no unfortunately not. Although there should only be 2 possible orientations, but I'm not getting the right behavior with either of them
  894. [21:51:35] <TheSeven> drd_: applying the supply voltages with wrong polarity might have killed the chip
  895. [21:52:05] <pcpower> TheSeven: that's very possible
  896. [21:52:27] <drd_> TheSeven: ah well that's no good. I've tried 2 and have 1 left. Guess I won't try that one until NXP writes me back
  897. [21:52:47] <pcpower> since I've read over ohm's law more than a few times, it will take someone else's help for me to understand it. "go read" won't do anything for me
  898. [21:53:16] <pcpower> whether you want to help or not is up to you. if you don't , just say so and I'll go somewhere else :)
  899. [21:54:26] <prpplague> pcpower: sorry it is not that we don't want to help, it is that we cant hold your hand on the very very very very basic items, these items are best that you learn in a channel like ##electronics or in some course before coming here to get specific information on the panda
  900. [21:55:27] <prpplague> pcpower: think of it in terms of a water pipes
  901. [21:55:28] <pcpower> ok
  902. [21:55:52] <pcpower> well I might as well sell the board and go learn electronics for another year before trying anything then... since I don't know anything apparently
  903. [21:56:13] <pcpower> I guess I thought it was easier
  904. [21:56:15] <pcpower> oh well
  905. [21:56:20] <pcpower> maybe I just can't learn
  906. [21:56:24] <prpplague> pcpower: if the led and the omap4 processor both have 3" water pipes, but the omap4 can only pump at 50PSI but the LED needs 200PSI, the pressure will bust the OMAP4 pipe
  907. [21:56:27] <TheSeven> if anybody even buys a potentially broken board...
  908. [21:56:32] <TheSeven> prpplague: good to know that these pins have ~80 ohms inner resistance :P
  909. [21:56:55] <prpplague> TheSeven: hehe
  910. [21:57:02] * pcpower (~bparker@fiveforty.net) has left #pandaboard
  911. [21:57:16] * prpplague shakes his head
  912. [21:57:25] * TheSeven nods
  913. [21:58:45] <TheSeven> drd_: btw, in theory, you can build your own level shifter with as little as 2 transistors and 4 resistors... not sure what the signal quality would be though :)
  914. [21:59:07] <prpplague> i am always amazed how people expect to purchase a development board, and with no experience build the next great electronics device
  915. [21:59:44] <drd_> TheSeven: xP
  916. [22:00:47] <drd_> TheSeven: so no way to verify which pin is pin 1?
  917. [22:01:31] <TheSeven> drd_: well, you can try it out, with some additional precautions
  918. [22:02:09] <TheSeven> if you aren't sure about the polarity of such a fairly simple chip, hook it up to the supply voltage through an e.g. 10K resistor, and measure the voltage that reaches the chip
  919. [22:02:14] * cmagina (~quassel@173-166-109-13-newengland.hfc.comcastbusiness.net) Quit (Ping timeout: 250 seconds)
  920. [22:02:31] <TheSeven> if you got it the wrong way round, this shouldn't kill it, but it will limit the voltage to ~0.7V
  921. [22:02:35] * jojobest (~joffrey@76.22.100.84.rev.sfr.net) Quit (Quit: Leaving.)
  922. [22:02:53] <TheSeven> if you got it the right way, the voltage will probably be higher, depending on the chip's quiescent current
  923. [22:04:24] <drd_> alright so I hook up vcca and gnd with the resistor and then measure the voltage reaching the chip from ...?
  924. [22:04:58] <TheSeven> prpplague: these gpio pins go straight through to the SoC? I'm surprised that they didn't provide more than 20mA
  925. [22:05:11] <TheSeven> hm, maybe his multimeter has a rather high inner resistance in those low current measurement modes
  926. [22:05:24] <prpplague> TheSeven: its actually lower on most of the pins
  927. [22:05:40] <prpplague> TheSeven: most of the pins are 10mA iirc
  928. [22:05:48] <TheSeven> so they have current-limiting drivers?
  929. [22:05:57] <TheSeven> i would have expected them to spike to maybe 100mA and then burn out :P
  930. [22:06:37] <TheSeven> drd_: put the resistor in the VCC path, and then measure VCC=>GND at the chip
  931. [22:07:05] <drd_> k thanks!
  932. [22:07:22] * prpplague checks the specs
  933. [22:07:34] <jayabharath> prpplague: looks like you just submitted the form
  934. [22:07:50] <prpplague> jayabharath: about 30 minutes ago
  935. [22:07:51] * TheSeven doesn't want to keep prpplague from doing more important work
  936. [22:08:03] <prpplague> TheSeven: waiting on a build to finish
  937. [22:08:19] <jayabharath> prpplague: Nice - got a email. Everything go smoothly - are the instructions clear?
  938. [22:08:24] <TheSeven> heh, that's always a good excuse :)
  939. [22:08:35] <jayabharath> prpplague: any other detail to change or different info to gather...?
  940. [22:10:49] <prpplague> jayabharath: it only asks for city and country , need to have more details for that
  941. [22:11:05] <jayabharath> prpplague: like?
  942. [22:11:15] * dl9pf (~quassel@opensuse/member/dl9pf) has joined #pandaboard
  943. [22:11:38] <prpplague> jayabharath: city, state, region/parish ?
  944. [22:12:27] <prpplague> jayabharath: i.e. if i were still living in barbados it would be: bridgetown, st.phillip, barbados, west indies
  945. [22:12:39] <jayabharath> prpplague: wow ;)
  946. [22:13:00] <prpplague> sorry that christ church, no st.phillip, hehe
  947. [22:13:07] <jayabharath> prpplague: I can add state/region as well
  948. [22:13:14] <prpplague> jayabharath: yea
  949. [22:13:20] <jayabharath> so it will be city, state/region, country
  950. [22:14:27] <jayabharath> done
  951. [22:14:29] <jayabharath> what else
  952. [22:14:37] <TheSeven> zip code, phone number, social security number, credit card number, ... :P
  953. [22:15:01] <jayabharath> TheSeven: sure send them over :D
  954. [22:15:57] <prpplague> jayabharath: i think that was the only items that came to mind
  955. [22:16:09] <jayabharath> prpplague: I plan to obfuscate the email via http://scr.im/ (will help prevent spambots)
  956. [22:16:24] <jayabharath> prpplague: ok great... then we are ready to rock
  957. [22:16:39] <jayabharath> Do you want your entry posted or removed?
  958. [22:16:49] <prpplague> lets remove it for now
  959. [22:16:52] <jayabharath> ok
  960. [22:19:47] <prpplague> TheSeven: all gpio capable lines are 8mA or less with most of them at 4mA
  961. [22:20:16] * jayabharath (~jayabhara@nat/ti/x-lalrnjwfdjfxpvjk) Quit (Quit: jayabharath)
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  966. [22:45:13] <MrCurious_> any cause for celebration today prpplague?
  967. [22:45:32] <MrCurious_> well, for people other than london's discount shoppers...
  968. [22:45:34] <prpplague> MrCurious_: yes, but none that i can share with you
  969. [22:46:00] <MrCurious_> well a blind congrats to you :D
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  990. [23:48:46] * hrw (~hrw@linaro/hrw) Quit (Ping timeout: 264 seconds)
  991. [23:50:19] * mturquette (~mturquett@nat/ti/x-kbtcieurxwccjpah) Quit (Quit: leaving)
  992. [23:52:25] * dankobum1 (~rolf@p5B2E727E.dip.t-dialin.net) has joined #pandaboard
  993. [23:53:29] * MrCurious_ (~MrCurious@67.58.47.190) Quit (Ping timeout: 252 seconds)
  994. [23:53:48] * ozk (~ozk@bzq-218-39-90.cablep.bezeqint.net) has joined #pandaboard
  995. [23:55:09] * ozk_ (~ozk@bzq-218-39-90.cablep.bezeqint.net) has joined #pandaboard
  996. [23:56:09] * dankobum2 (~rolf@p5B2E72FA.dip.t-dialin.net) Quit (Ping timeout: 276 seconds)
  997. [23:56:45] * hrw (~hrw@linaro/hrw) has joined #pandaboard
  998. [23:58:24] * ozk (~ozk@bzq-218-39-90.cablep.bezeqint.net) Quit (Ping timeout: 240 seconds)

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