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| 02:33.46 | echelon | for some reason some of the packages in buildroot doesn't have makefiles |
| 02:35.43 | echelon | instead it has an .svn directory |
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| 04:12.46 | *** join/#edev JohnnyL (i=JohnnyL@ool-182ddad4.dyn.optonline.net) |
| 04:12.49 | JohnnyL | hi |
| 04:13.00 | JohnnyL | anyone need any help with their projects? |
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| 05:21.00 | JohnnyL | hi |
| 05:32.28 | echelon | hi |
| 05:35.53 | JohnnyL | how are you? |
| 05:36.03 | echelon | not bad, yourself? |
| 05:36.09 | JohnnyL | i am well. |
| 05:36.15 | JohnnyL | working on anything interesting? |
| 05:36.29 | JohnnyL | I have been contemplating working on the GP2X platform. |
| 05:36.43 | echelon | i guess.. this thingy.. http://openzipit.org/ |
| 05:36.46 | echelon | cool |
| 05:36.59 | echelon | i wanted to get one |
| 05:37.12 | echelon | but it uses like 4 AA's right? |
| 05:38.06 | JohnnyL | echelon is the z2 ARM? |
| 05:38.16 | echelon | yup |
| 05:38.25 | JohnnyL | echelon, yeah, or plugin. or some kinda NihN battery or something? |
| 05:38.29 | echelon | oh.. 2 A's |
| 05:38.31 | echelon | AA's |
| 05:38.51 | echelon | how much game time can you get out of it? |
| 05:40.05 | echelon | with 2 AA's |
| 05:41.00 | JohnnyL | echelon looks good. |
| 05:41.07 | JohnnyL | echelon they say 10 minutes tops. |
| 05:41.13 | echelon | lol |
| 05:41.15 | echelon | geez |
| 05:41.17 | JohnnyL | though there is another battery that makes it last for 6 hours. |
| 05:41.25 | JohnnyL | then there is the connector. |
| 05:41.31 | JohnnyL | can you makes games for the zip it? |
| 05:41.43 | JohnnyL | it prolly doesn't have the hw for it. |
| 05:41.44 | echelon | eh.. development is going really slow atm |
| 05:42.10 | echelon | 312mhz |
| 05:42.28 | echelon | someone was able to run an sdl app on it so far |
| 05:42.43 | JohnnyL | i know, but there is stuff like bus and graphics blitters and all sorts of hw speed ups for graphics. |
| 05:44.05 | echelon | it's mainly just for IM, web surfing, music.. |
| 05:44.47 | echelon | it even has a weird mic jack.. once they start selling the mics i'm going to port a sip softphone |
| 05:45.56 | JohnnyL | ok |
| 05:45.57 | JohnnyL | sweet |
| 05:47.01 | echelon | i was able to get mine for $8 |
| 05:47.43 | echelon | it originally went for like $130.. but the prices came down to like $40 after they made it a subscription based service |
| 05:48.36 | echelon | and i had gotten a $30 discount with my amazon card |
| 05:48.36 | echelon | of course you don't need to subscribe if you're going to hack it anyway ;) |
| 05:48.47 | JohnnyL | oh ok |
| 05:48.49 | JohnnyL | wow |
| 05:49.13 | JohnnyL | i'm not that good with hardware. but I'd imagine if i tried I would be. |
| 05:49.29 | *** join/#edev harpal (n=Harpal@122.169.108.195) |
| 05:49.38 | echelon | same.. i'm just porting software |
| 05:49.51 | echelon | you don't need to modify the hardware at all actually |
| 05:50.01 | echelon | you can boot right off a microsd card |
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| 05:56.23 | JohnnyL | oh wow, cool. |
| 05:56.39 | JohnnyL | echelon i'd like to talk to you tommorow some more, will you be on? |
| 05:59.09 | JohnnyL | anyway, goodnight |
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| 07:08.32 | [AD]Turbo | yo |
| 07:08.58 | echelon | hi |
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| 13:32.44 | prpplague | ho ho ho |
| 13:32.48 | prpplague | merry freakin friday |
| 13:33.30 | prpplague | santa dave reaches into his bag and throws out xanax, prozac, and wellbutrin for everyone |
| 13:34.00 | MothaWork | have you been responding to too many emails recently? |
| 13:35.02 | prpplague | MothaWork: actually i've been ignoring them, i have like 50+ i need to respond to |
| 13:35.24 | prpplague | (but i get your joke) |
| 13:36.09 | prpplague | MothaWork: we are using a tpa2005 audio amp on the m8050, i noticed the speaker was getting really hot when we were doing playback |
| 13:36.32 | MothaWork | have a DC offset somewhere? |
| 13:37.30 | prpplague | MonMotha: went and checked the datasheet, EEdiot used the wrong resistor values, formula was suppose to be gain= 2 * 150k/R1 with 2v/v the max |
| 13:37.40 | prpplague | MonMotha: he was using a 137k resistor |
| 13:38.13 | MothaWork | um, that would be wrong, yes |
| 13:38.52 | prpplague | MothaWork: that puts us running a .5W speaker at about .9W |
| 13:39.56 | MothaWork | oh fun |
| 13:45.16 | *** join/#edev dijenerate (n=dijenera@72.51.107.250) |
| 14:17.41 | solar | sounds like a costly little mistake |
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| 14:29.20 | MothaWork | easy enough to fix at least |
| 14:29.25 | MothaWork | assembly only change |
| 14:33.39 | prpplague | solar: naw, just a change of value for the resistors, 2 of them |
| 14:34.10 | MothaWork | most of the cost depends on how many production units have been assembled already |
| 14:34.29 | *** join/#edev chouimat|work (n=dieu@209.217.106.98) |
| 14:34.37 | MothaWork | if the answer is none, then it only costs you any inventory of the other resistor values you have, and resistors are cheap (and readily usable on other projects) |
| 14:35.32 | MothaWork | prpplague: I'd think that driving a 0.5W speaker at 0.9W would also result in it sounding absolutely terrible (not to mention loud) |
| 14:36.04 | solar | guess you have not sent that many to the assembly line then |
| 14:36.25 | prpplague | MothaWork: we only have 20 or so pre-production |
| 14:36.37 | solar | oh |
| 14:36.41 | prpplague | MonMotha: surprisingly it doesn't sound bad |
| 14:36.55 | MothaWork | prpplague: I wonder then if that's not the problem |
| 14:37.00 | prpplague | we have two more revs before we go to a test run |
| 14:37.17 | MothaWork | a DC offset could heat the speaker up quite a bit while not impairing sound quality much |
| 14:38.06 | prpplague | how would you test for that? |
| 14:47.13 | prpplague | ho ho hum |
| 14:49.38 | prpplague | MonMotha: found a cool way to test for heat problems |
| 14:49.45 | prpplague | MonMotha: thermal printer labels |
| 14:50.04 | prpplague | MonMotha: get the big labels and stick it over the entire board |
| 14:50.05 | MothaWork | prpplague: make sure the amp is on (but has zero signal input) and take a multimeter across the speaker |
| 14:50.14 | MothaWork | prpplague: ah yes, I've heard that technique before |
| 14:50.27 | MothaWork | UPS thermal labels work well and are free (but not approved for this usage) :) |
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| 14:53.42 | kergoth | morning |
| 14:54.00 | prpplague | kergoth: merry freaking friday! |
| 15:03.26 | prpplague | MonMotha: good solid 0.00V |
| 15:08.21 | MothaWork | prpplague: well, then no DC offset |
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| 16:22.58 | MothaWork | gah, this NAND ECC is clearly not functional |
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| 17:14.28 | wmat | prpplague: http://www.boingboing.net/2008/10/24/i-hope-they-are-wron.html |
| 17:14.39 | wmat | that's one scary set of predictions |
| 17:16.06 | chouimat|work | wmat: http://www.leap2020.eu/GEAB-N-28-is-available!-Global-systemic-crisis-Alert-Summer-2009-The-US-government-defaults-on-its-debt_a2250.html |
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| 17:18.26 | CosmicPenguin | We're all in the soup |
| 17:18.56 | wmat | we might all be in a box in the alley soon |
| 17:18.58 | MothaWork | the europeans apparently don't have the requirement about notification of "forward looking statements" like the USA does |
| 17:19.31 | kergoth | "A man in the UK has been sued by an eBay seller for leaving negative feedback." |
| 17:19.40 | MothaWork | the US treasury defaulting on its debt would be quite historic |
| 17:19.44 | MothaWork | it's never happened, after all |
| 17:19.58 | MothaWork | quite a historic event, I should say |
| 17:20.26 | wmat | there's been lots of those lately |
| 17:20.34 | flavioribeiro | can someone tell me the cheapest board that supports linux? |
| 17:20.59 | chouimat|work | MothaWork: but it might happen ... |
| 17:21.13 | MothaWork | chouimat|away: it well, you could say that about just about anything |
| 17:21.35 | MothaWork | unfortunately, they've pretty much explicitly guaranteed the Fannie/Freddy stuff now |
| 17:21.37 | chouimat|work | MothaWork: true ... like it might happen that I will find a gf soon :) |
| 17:22.12 | wmat | flavioribeiro: there are hundreds, if not thousands of boards that support linux and at many architectures as well. You'll have to be more specific with your requirements. |
| 17:25.01 | flavioribeiro | wmat, ok, what i need is something like the hammer board, but cheaper than... a board with some GPIO and that supports gsm |
| 17:25.24 | wmat | when asked what they'd give up in these tight times, most people responded with cell phones and internet access |
| 17:25.50 | MothaWork | home phone and cable television...already gone (heck, I never had a home phone) |
| 17:25.55 | wmat | flavioribeiro: so ARM? |
| 17:25.57 | MothaWork | my cell phone costs less than a home phone would |
| 17:26.01 | flavioribeiro | yep, arm proc |
| 17:26.56 | wmat | flavioribeiro: I don't know of any off the top of my head that are cheaper than the Hammer. Maybe checkout some Luminary Micro boards. |
| 17:27.09 | MothaWork | the Hammer is pretty cheap |
| 17:27.39 | flavioribeiro | what about the beagle board? |
| 17:27.51 | wmat | what about it? |
| 17:28.01 | MothaWork | it costs more than the Hammer, IIRC |
| 17:28.09 | MothaWork | and is a bit lacking in IO |
| 17:28.18 | flavioribeiro | hmm.. |
| 17:28.32 | MothaWork | the only IO is on a small header, and it's all 1.8V, so you'd probably need level shifters |
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| 18:04.37 | prpplague | wmat: yea looking pretty bad |
| 18:04.45 | prpplague | lordy lordy |
| 18:05.20 | prpplague | CosmicPenguin: just got back from a meeting, basically was told that we will stop doing linux by the end of next year |
| 18:06.55 | *** join/#edev Ian_Daniher (n=it@204.10.219.119) |
| 18:07.09 | MothaWork | prpplague: everybody demanding WinCE? |
| 18:07.54 | prpplague | MothaWork: yes and no, there is always demand for WinCE, but apparently all the new sales people aren't understanding how to sell to linux shops |
| 18:08.25 | MothaWork | prpplague: I see |
| 18:08.48 | ds2 | prpplague: how goes the search? |
| 18:08.59 | prpplague | ds2: ?? |
| 18:09.24 | ds2 | prpplague: presumeably, you got til next year to find something unless you are going to choke down CE |
| 18:09.44 | prpplague | ds2: yea, i've been getting prepared for awhile |
| 18:11.08 | CosmicPenguin | prpplague: I thought you were going to leave like tomorrow anyway |
| 18:11.17 | CosmicPenguin | you need to stop being surprised that they keep screwing you.. :) |
| 18:12.07 | prpplague | CosmicPenguin: not really surprised, just disappointed that they took a thriving linux business and destroyed in just under a year |
| 18:15.43 | ds2 | prpplague: was this from the owner? |
| 18:16.23 | prpplague | ds2: yea |
| 18:16.39 | ds2 | prpplague: does this imply TCT ends next year also? |
| 18:17.06 | prpplague | ds2: no, different stuff |
| 18:17.22 | ds2 | prpplague: so HE is not disillusioned with Linux then? |
| 18:17.50 | prpplague | ds2: no, they all like linux, its just that the sales department doesn't know how to sell it |
| 18:18.03 | ds2 | that isn't as bad |
| 18:18.44 | prpplague | ds2: bad enought that they'd rather change OS than train the sales people properly |
| 18:19.08 | ds2 | could be worse... they couldve all given up entirely on linux |
| 18:21.30 | prpplague | ds2: they did |
| 18:29.44 | MothaWork | prpplague: ok, so JFFS2 is getting into a state where it serves up corrupted data. Rebooting does not fix. Reflashing does not fix unless you rewrite the filesystem (including an erase) 3 times. It always seems to work after the 3rd time. No ECC errors. Any ideas? |
| 18:30.26 | prpplague | MonMotha: hmm, sounds like maybe a conflict between hard ecc and soft ecc maybe |
| 18:37.26 | *** join/#edev flavioribeiro (n=flaviori@201-65-98-68.poolip.JPA.embratel.net.br) |
| 18:43.59 | *** join/#edev Omegamoon (n=egoe@demolitionman.xs4all.nl) |
| 18:45.44 | JohnnyL | anyone here work with GP2X? |
| 18:52.11 | prpplague | not i |
| 18:52.28 | prpplague | isn't that based on a magiceyes cpu? |
| 18:52.31 | prpplague | looks |
| 18:52.49 | JohnnyL | prpplaguep dunno, i'm pretty sure it's ARM. |
| 18:54.40 | prpplague | yea MP2520 |
| 18:55.42 | prpplague | interesting, the MP3520 is whats in the Didj |
| 18:59.08 | JohnnyL | prpplague yeah and the main processor in the MP3520 is an ARM 9 processor. |
| 18:59.32 | prpplague | JohnnyL: arm926t to be exact |
| 18:59.38 | JohnnyL | prpplague correct |
| 18:59.56 | prpplague | JohnnyL: are you familiar with the MP3520? |
| 19:01.45 | JohnnyL | prpplague no, only the 6502/10 |
| 19:02.04 | JohnnyL | i wikid the GP2x. |
| 19:08.31 | MothaWork | prpplague: near as I can tell, HW ECC is completely off |
| 19:08.40 | MothaWork | of course, soft ECC doesn't seem to work either |
| 19:17.32 | MothaWork | I did a write and a readback. I found a single bit error, so I marked the block bad manually with the bootloader. I then re-wrote and read back, and the error presisted despite the bad block being skipped. |
| 19:17.37 | MothaWork | still a single bit error |
| 19:45.46 | echelon | oi.. i can't get the card to associate with an AP with WEP |
| 19:45.56 | echelon | i could've sworn i was able to do it last night |
| 20:05.46 | *** join/#edev zachb (n=zachb@c-71-192-250-122.hsd1.ma.comcast.net) |
| 20:10.50 | JohnnyL | what is LPC in the context of ARM? |
| 20:11.14 | roxfan | nxp (formerly philips) arm chips |
| 20:11.38 | roxfan | their arm7 line seems pretty popular |
| 20:12.49 | roxfan | http://www.lpc2000.com/ |
| 20:17.40 | MothaWork | the LPC ARM7s are one of a few major lines of ARM7TDMI and friends with lots of integrated peripherals and enough onboard flash/RAM to run relatively major applications (i.e. no external memories needed for many uses) |
| 20:17.53 | MothaWork | in fact, most LPC ARM7s do not support external memories at all |
| 20:43.01 | roxfan | looks like they're about to release a cortex-m3 chip |
| 20:45.31 | MothaWork | wouldn't surprise me |
| 20:46.02 | MothaWork | Cortex M3 is the new hotness, after all |
| 20:47.38 | roxfan | http://www.embeddeddeveloper.com/group/1402/NXP-Semiconductors/LPC1766.htm |
| 20:48.52 | roxfan | looks nice |
| 20:49.08 | MothaWork | well, it looks about like their current ARM7TDMI offerings but using a Cortex M3 core |
| 20:49.15 | MothaWork | which is fine, I guess. Their current offerings are decent |
| 20:55.18 | roxfan | hmm "As part of the agreement, NXP will also have access to all ARM Cortex family processors, including the recently announced Cortex-A9 MPCore multicore processor and the ARM Mali family of graphics processing units (GPUs)." |
| 21:02.31 | chouimat|away | interesting |
| 21:20.42 | *** join/#edev regy (n=regy@cpc2-blfs6-0-0-cust999.belf.cable.ntl.com) |
| 21:20.56 | regy | hi all |
| 21:21.07 | echelon | hi |
| 21:21.08 | regy | can any one help me |
| 21:21.33 | prpplague | regy: only if you tell us what kind of help you need |
| 21:22.16 | regy | need help from some one who knows a bit about web sites |
| 21:23.06 | prpplague | is this related to embedded linux devices? |
| 21:23.27 | regy | no mate |
| 21:24.23 | prpplague | regy: then you have the wrong channel |
| 21:24.44 | regy | np cheers mate |
| 21:25.47 | regy | prpplague pm me |
| 21:32.47 | *** mode/#edev [+o prpplague] by ChanServ |
| 21:32.50 | *** topic/#edev by prpplague -> a channel for the discussion of embedded linux on small consumer electronic devices, mostly ARM based; Hammer Development boards as well as Nail Boards are now available at http://www.tincantools.com/ |
| 21:34.08 | prpplague | aparently google is spitting out #edev as a hacker haven for script kiddies |
| 21:34.56 | kergoth | :( |
| 21:42.55 | *** join/#edev dijenerate (n=dijenera@72.51.107.250) |
| 21:44.41 | chouimat|away | prpplague: wow :) |
| 21:45.06 | JohnnyL | given: stmiar9!, {r0-r7} ;### what does the ! stand for? |
| 21:45.25 | *** join/#edev regy (n=regy@cpc2-blfs6-0-0-cust999.belf.cable.ntl.com) |
| 21:45.43 | regy | prpplague mate no luck |
| 21:45.57 | regy | i cant find one any were |
| 21:47.25 | prpplague | regy: no one here can help you, like i said, this channel is for development of embedded linux devices |
| 21:47.54 | regy | ok mate |
| 21:49.12 | prpplague | jeeze |
| 21:49.13 | chouimat|away | hehe |
| 21:56.20 | CosmicPenguin | prpplague: what google url? |
| 21:56.50 | prpplague | CosmicPenguin: i don't know, its just what that regy person said |
| 21:58.01 | CosmicPenguin | huh - interesting |
| 22:00.46 | prpplague | CosmicPenguin: said he used: hacking irc chat |
| 22:01.35 | chouimat|away | prpplague: I would bet his like a lot of people can't read correctly ;) |
| 22:01.39 | CosmicPenguin | I don't see it |
| 22:02.22 | prpplague | yea |
| 22:03.16 | CosmicPenguin | serves them right for using the wrong term for craking |
| 22:03.55 | CosmicPenguin | welcome to the banhammer |
| 22:05.50 | roxfan | JohnnyL: R9! means update R9 to point to the end of stored data |
| 22:06.16 | roxfan | incidentally, such things are explained nicely in the arm manuals... |
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| 22:07.08 | *** mode/#edev [+o CosmicPenguin] by ChanServ |
| 22:07.28 | prpplague | heads home |
| 22:07.55 | JohnnyL | roxfan ok thanks. |
| 22:12.38 | *** part/#edev Omegamoon (n=egoe@demolitionman.xs4all.nl) |
| 22:20.13 | *** join/#edev webbi (n=webi@90-101-16-190.fibertel.com.ar) |
| 22:20.17 | webbi | hello |
| 22:20.52 | webbi | I just got a tms470r1a288pz uC from texas instruments... but I have no idea how to code, compile and upload it to the uC |
| 22:20.55 | webbi | anybody could help me? |
| 22:21.56 | webbi | I tried to look for info about this in google, but I don't found any simple to almost make a test |
| 22:23.32 | roxfan | do you have a board for it? or just the chip? |
| 22:25.57 | roxfan | those have jtag interface so you should probably get a jtag adapter |
| 22:26.05 | JohnnyL | texas instruments is using sha1 to name it's chips? |
| 22:29.45 | webbi | roxfan: I just have the chip |
| 22:30.30 | webbi | roxfan: I just found some infor about how to use it with a wiggler jtag, because as g1powermac told me, it's an ARM chip? |
| 22:30.39 | roxfan | it is |
| 22:30.44 | webbi | ok |
| 22:30.46 | webbi | I found some info |
| 22:30.53 | webbi | but nothing clear |
| 22:31.19 | webbi | also, I'm using linux... is there a way to program it with gcc or other tool under linux ? |
| 22:31.38 | roxfan | urjtag or openocd |
| 22:31.53 | roxfan | er those are for jtag programming/debugging |
| 22:32.10 | roxfan | for actual development you need an arm toolchain |
| 22:33.00 | webbi | Ok, so urjtag or openocd is the hardware to burn it, and I need to download an ARM toolchain for linux to write and compile the source code |
| 22:33.01 | webbi | ? |
| 22:33.01 | roxfan | you can get a ready-made one from codesourcery or use something like openembedded or build your own |
| 22:34.37 | webbi | Ok |
| 22:34.46 | webbi | I will look for info about them and see what will I do |
| 22:35.57 | roxfan | urjtag and openocd are software programs, not hardware |
| 22:36.59 | roxfan | for jtag adapter there are many options, you can even make a simple one that works over lpt port yourself |
| 22:37.38 | roxfan | though you should be careful with voltages if your chip is not 5v |
| 23:01.08 | JohnnyL | is it true, you have to write an OS everytime you want to write software for, say the GP2X. I guess what I'm asking is.. is there any kernel? |
| 23:01.26 | JohnnyL | roxfan: so the contents of r0 through r7 get transfered into the address at r9 and then r9 is bumped up by 1 full address? |
| 23:01.35 | JohnnyL | what is love? baby don't hurt me, don't hurt me, no more.' |
| 23:01.38 | roxfan | by 4*8 bytes |
| 23:06.23 | JohnnyL | r0-r7=8 and 4=address space? |
| 23:14.44 | JohnnyL | well? well? (in Ted Knight's huffy voice) |
| 23:18.33 | CosmicPenguin | nice, a caddyshack reference |
| 23:31.16 | JohnnyL | high fives cosmic penguin |
| 23:34.00 | ds2 | wonders if smart, microprocessor controlled axe's fall into this channel's realm ;) |
| 23:36.07 | roxfan | you mean like... Picaxe? |
| 23:36.25 | CosmicPenguin | Now thats just terrible |
| 23:36.28 | CosmicPenguin | terrible, terrible, terrible |
| 23:37.31 | ds2 | heheh |
| 23:37.51 | ds2 | ''hacking away with a pic axe'' |
| 23:39.33 | *** join/#edev redblue (i=star@ppp163.108-253-207.mtl.mt.videotron.ca) |