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| 08:10.30 | Russ | ljp: already found a couple bad bugs in qt 4.1.0 |
| 08:11.42 | Russ | its funny, in their docs, trolltech states that connect/disconnect etc are thread safe, but not reentrant |
| 08:11.52 | Russ | they are neither |
| 08:12.15 | Russ | inside a slot, disconnect, emit, connect, bad things happen |
| 08:12.35 | Russ | somehow they figured, an in use bit on QConnections would be enough |
| 08:14.11 | Russ | what was the other one.... |
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| 13:37.11 | prpplague | ~seen sjhill |
| 13:37.39 | ibot | sjhill <n=sjhill@eth13.com-link.com> was last seen on IRC in channel #elinux, 2d 16h 58m 14s ago, saying: 'well, i've spread all the joy i can today'. |
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| 15:24.00 | prpplague | T0mW: hey |
| 15:24.23 | prpplague | T0mW: you ever done any urethane resin molds ? |
| 15:24.42 | T0mW | now |
| 15:24.44 | T0mW | no |
| 15:24.58 | T0mW | prpplague: plenty of other drugs though |
| 15:25.12 | prpplague | T0mW: hehe |
| 15:25.37 | prpplague | T0mW: http://www.smooth-on.com/proto.htm |
| 15:26.49 | T0mW | prpplague: problem will be the mold: $$$ |
| 15:27.25 | prpplague | T0mW: in what way? |
| 15:28.50 | T0mW | prpplague: I knew a guy that was having his own plastic parts injection molded, fairly rigid plastic. He told me that an aluminum mold cost him around $5K to machine out and it was only good for about 10..20K cycles before it wore to the point where it needed to be replaced |
| 15:29.13 | prpplague | T0mW: yea this is different than the injection molding |
| 15:29.48 | prpplague | T0mW: this method you just make one of the items, then cast it in silicon, then you have a mold to use |
| 15:29.50 | T0mW | prpplague: that's all I know about molding parts. |
| 15:29.55 | prpplague | T0mW: ahh |
| 15:30.04 | prpplague | T0mW: this seems pretty easy to do |
| 15:30.25 | prpplague | T0mW: seems alot of the home brew portable guys are using this method for custom cases |
| 15:30.26 | T0mW | prpplague: planning on doing your own case? |
| 15:30.40 | T0mW | prpplague: interesting |
| 15:31.06 | prpplague | T0mW: http://benheck.com/phoenix/Overview-Case.htm |
| 15:31.11 | T0mW | prpplague: planning a bigger case for your modified zipit? |
| 15:31.19 | prpplague | T0mW: i've always wanted to be able to custom cases |
| 15:31.53 | T0mW | prpplague: wonder if you can do custom keypads that way? |
| 15:32.17 | prpplague | T0mW: i would think you could |
| 15:33.28 | T0mW | prpplague: on another topic, I've found that since I'm trying to quit smoking, that the occasional cigar I do have tastes sooooo goood! |
| 15:33.35 | T0mW | :-) |
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| 15:37.42 | prpplague | T0mW: hehe |
| 15:38.27 | prpplague | T0mW: question |
| 15:38.42 | prpplague | T0mW: i'm doing some prototyping that needs a 3.3v source |
| 15:39.23 | prpplague | T0mW: i was thinking of using a wallwort into a 7805 , then the 5v into a LM1085 for 3.3v |
| 15:39.42 | T0mW | prpplague: that should be fine. |
| 15:39.47 | prpplague | T0mW: my proto boards i get already have a barrel connector and pads for 7805 |
| 15:40.01 | T0mW | prpplague: that is a three-terminal (series) regulator? |
| 15:40.17 | T0mW | smd? |
| 15:40.33 | prpplague | T0mW: no its a 220 package |
| 15:40.44 | T0mW | why not surface mount it? |
| 15:41.00 | T0mW | or you hand wiring this? |
| 15:41.08 | prpplague | T0mW: hehe, because the proto boards i get already come with it all |
| 15:41.31 | prpplague | T0mW: yea hand wiring |
| 15:42.24 | prpplague | T0mW: i use these - http://www.beldynsys.com/p500.htm |
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| 15:42.47 | T0mW | depending on the heatsink, and the current draw, you should easily get up to 1.5 amps of power out of a TO-220 package. Modest heatsink measuring about 3 inches of surface area should be ok at 12v input with 3v out at 0.5amp |
| 15:43.33 | prpplague | T0mW: yea the wallworts i use are 7.5v |
| 15:43.34 | T0mW | it will be quite warm as you are disappating around 3watts of heat |
| 15:44.32 | prpplague | T0mW: hmm, i've not noticed the 7805 being that hot |
| 15:45.07 | T0mW | prpplague: simple switchers like the national semi LM2575 are more efficient, less heat and only a couple of components extra: clamp diode (IN5822), choke (80uh), cap (220uf). |
| 15:45.42 | T0mW | prpplague: simple switcher should run about 80% efficiency, while a series regulator runs about 30% efficiency. |
| 15:45.59 | T0mW | prpplague: the other 20% / 70% is heat |
| 15:46.07 | T0mW | P = I * E |
| 15:47.10 | T0mW | where E is the voltage "dropped" across the regulator: e.g. 12v in 3v out, leaves 7v drop. Thus: 1 amp @ 7v drop == 7Watts of heat to get rid of. |
| 15:47.32 | T0mW | prpplague: doh |
| 15:47.48 | T0mW | prpplague: 7watts * 70% == 4.9Watts |
| 15:47.50 | T0mW | of heat |
| 15:48.18 | T0mW | prpplague: with a switcher at the same conditions, you only have 1.4Watts to get rid of. |
| 15:48.56 | T0mW | series regulators are "easy" but they waste a lot of power as heat |
| 15:48.57 | prpplague | T0mW: yea, but i'm running 7.5v in and i'm not running everything on 3.3v, most of the device is 5v |
| 15:49.47 | prpplague | T0mW: and i'm only running at 500ma |
| 15:50.14 | T0mW | prpplague: just keep in mind the heat you need to dump, then goto someone like Thermalloy and get their catalog, the heat sink vendors have formulas you can use to see how much surface area of heatsink you need to dump X watts of heat |
| 15:50.49 | T0mW | prpplague: each style of heatsink is rated for a specific surface area |
| 15:51.22 | T0mW | prpplague: rather than guess if it is big enough, it is simple enough to calculate what you really need |
| 15:51.47 | T0mW | prpplague: just some info for you for reference |
| 15:52.55 | prpplague | T0mW: thanks |
| 15:53.02 | T0mW | the only real problem you run into with building your own switching supply is Ground Shift. The Ground wiring must be beefy and short. |
| 15:53.40 | T0mW | otherwise you run the risk of it rocking or breaking into sympathetic oscillation |
| 15:53.44 | prpplague | T0mW: doh, just realized that my proto boards come with a LM317 and LM337, so i can just use them |
| 15:53.53 | T0mW | prpplague: dummy |
| 16:01.10 | T0mW | huh? |
| 16:01.26 | T0mW | Insight v6.4 runs both JTAG target in tandem |
| 16:01.51 | T0mW | with v6.1 I used to have to control each target in the JTAG chain seperately. |
| 16:03.24 | prpplague | Insight? |
| 16:03.47 | T0mW | yeah, gui front end for gdb + jtag |
| 16:04.40 | prpplague | ahh |
| 16:04.51 | T0mW | prpplague: what do you use? |
| 16:06.31 | prpplague | T0mW: for jtag? i just write an app to do what i want |
| 16:10.27 | T0mW | oh cool! |
| 16:11.01 | T0mW | the dual control option is settable. I was wondering if this new "feature" was intentional or not |
| 16:12.13 | T0mW | It certainly does make things easier, I don't have to goto each instance of Insight on the desktop and tell each one to "run" |
| 16:17.49 | chouimat | morning |
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| 17:23.28 | CosmicPenguin | Yohoho |
| 17:23.36 | file | is that like yahoo? |
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| 17:30.40 | CosmicPenguin | I've give you a yahoo upside your head, boy |
| 17:30.50 | file | :( |
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| 18:34.44 | kergoth | morning |
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| 18:42.59 | mbuf | on arm920t, linux-2.6.12.3 on LN2410SBC, i get "Uncompressing Linux ... done, booting the kernel", and it stops, any ideas why? I should get Linux-2.6.12.3 ..... printed next |
| 18:43.50 | T0mW | mbuf: now the fun begins |
| 18:44.14 | T0mW | mbuf: I usually put a number of printk's scattered in strategic places |
| 18:44.58 | T0mW | mbuf: printk ("made it this far (1)"); ... printk ("even made it here (2)"); |
| 18:45.30 | mbuf | T0mW, decompress_kernel is called in arch/arm/boot/compressed/head.S and i don't know how far it goes and fails, no debugger here either, printk in .S ? |
| 18:45.43 | mbuf | *it goes further |
| 18:46.31 | T0mW | mbuf: printk will also let you print variable values. |
| 18:46.32 | mbuf | or i should just do a b print_info and use printk |
| 18:46.40 | T0mW | mbuf: the problem could be anywhere, but look at the function that follows the head.S call into the first C code of the kernel. start sprinkling printk's around in there |
| 18:47.29 | T0mW | mbuf: I did a lot of printk dumps to find problems while doing implementation of uClinux on M68EZ328 system of mine |
| 18:47.38 | mbuf | T0mW, i see |
| 18:47.56 | T0mW | differnet times I had bss overlapped with romfs, etc. |
| 18:55.30 | T0mW | mbuf: For assembly files, I had written a serial putch() which would print "ABCDE". One letter at a time for each "checkpoint" in the boot. This way if it stalled on, say, "D", I would know where the D was printed... |
| 18:55.59 | T0mW | mbuf: helps to zero in on problem area |
| 18:56.16 | mbuf | T0mW, thanks |
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| 19:58.35 | beeble | CosmicPenguin: do you work with geode nx too? if yes, tell me why i should prefer it to celeron m ;) |
| 19:59.03 | beeble | s/to/instead of/ |
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| 20:37.54 | CosmicPenguin | beeble: because AMD rules |
| 20:38.20 | CosmicPenguin | If you need a mobile solution, then NX probably isn't your best bet |
| 20:38.27 | beeble | no its not mobile |
| 20:38.36 | CosmicPenguin | for that level of power in a non-mobile solution, why wouldn't you go with the NX? |
| 20:38.42 | CosmicPenguin | Its an Athlon core. Everybody loves Athlon |
| 20:39.36 | beeble | btw, how crazy would you think i am if i want to use a au1550 as co processor for a nx? ;) |
| 20:40.13 | CosmicPenguin | to coprocess what? |
| 20:41.17 | beeble | at the end it should do everything ;) boot the nx, ipsec/ssl, (slow) flash support |
| 20:45.39 | beeble | <PROTECTED> |
| 20:46.03 | CosmicPenguin | Really sick |
| 20:46.08 | CosmicPenguin | why not just use the au1200? |
| 20:46.13 | CosmicPenguin | or 1550 rather |
| 20:46.13 | CosmicPenguin | sorry |
| 20:46.18 | CosmicPenguin | I've got the au1200 on my brain |
| 20:46.35 | beeble | the customer wants to run x86 code |
| 20:46.41 | CosmicPenguin | heh |
| 20:47.07 | CosmicPenguin | Thats a freaky design, but it means we'll sell two cores on the same platform? :) |
| 20:47.10 | CosmicPenguin | Sign me up! |
| 20:47.15 | beeble | so at the end it would be a a1550 design with a x86 as coprocesser :) |
| 20:47.18 | beeble | hehe |
| 20:47.37 | CosmicPenguin | How would they talk? |
| 20:47.43 | beeble | you count spansion still to amd? :) |
| 20:47.45 | beeble | pci |
| 20:47.56 | CosmicPenguin | wow |
| 20:48.07 | CosmicPenguin | No, I don't count spansion as part of AMD. |
| 20:49.12 | beeble | pci should be enough because the main part for the au1550 would be a crypto nic |
| 20:49.25 | beeble | +to be |
| 20:51.15 | beeble | and yes, we like the alchemy, so we want it in every design! ;) |
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| 22:41.33 | T0mW | duh |
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