| rjeffries | I assume Tabula uses the time dimension to accomplish its magic? https://www.technologyreview.com/computing/37406/ | 02:58 |
|---|---|---|
| rjeffries | wpwrak speaking of SIMPLE networking protocols HsNeT is very simple and light http://www.hackeneering.com/Tiki/wiki/tiki-index.php?page=HsNet | 03:06 |
| wpwrak | rjeffries: (lighweight) oh sure, designing a non-standard protocol stack is always easy and fun. if it came to that, it wouldn't deny myself the pleasure of doing it entirely myself ;-) | 06:31 |
| wpwrak | rjeffries: (tabula) sounds as if they have a set of bits (8, apparently) for each config bit, plus a demux that picks one based on a central (?) clock. interesting approach. | 06:35 |
| wpwrak | rjeffries: such a thing may be able to increase the amount of available logic. won't help with the number of states, though. | 06:39 |
| wpwrak | rjeffries: you'd have to ask sebastien whether this is something that really helps. also, these are quite large chips, so they're targeting the very high end market. | 06:42 |
| wpwrak | ah, nice ... finally found a good formula for visualizing position-dependent BER. hmm, the day i document all this, it will be a tome of fearsome mathematics | 06:54 |
| wpwrak | hmm, and bit_error_probability*packets needs to be > 100 before this statistical test even begins to look useful. grr ;-( | 08:24 |
| wpwrak | i think i'll just hope atrf-path catches these as well :) (what i'm trying to detect is weak bypassing of RF power. if there's a problem with the capacitors, the signal strength will drop during a packet transmission. one way to find this is with fancy test equipment (e.g., an USRP). that measures the effect directly and is thus very accurate and fast. a less direct approach is to measure what this does on the probability of a bit goin | 08:29 |
| wpwrak | g bad. alas, this needs a lot of bad bits before any pattern emerges from the noise.) | 08:29 |
| Action: whitequark is happy | 09:13 | |
| whitequark | bought a BIG 400ml can of FLUX-OFF | 09:13 |
| wpwrak | whitequark: very good. if you splatter any flux on yourself, you can now bathe it off ;-)) | 10:56 |
| wpwrak | whitequark: now, what kind of flux is it for ? my guess would be RA/RMA resin. | 10:57 |
| whitequark | wpwrak: they assure that it could remove _all_ kinds of flux | 12:33 |
| whitequark | well, that does not correlate well with reality :/ | 12:34 |
| whitequark | but the 35W ultrasonic bath I've also got is truly awesome | 12:35 |
| whitequark | it got rid of both RMA and that funky TT flux in just several minutes | 12:35 |
| Fusin | hi /me ;) | 12:47 |
| Fusin | How do I install Vista on nanonote? ;) | 13:01 |
| Fusin | more srious question: how to install an 8gb microSD card | 13:04 |
| Fusin | which device is the sd-slot? how to partition an how to format? | 13:05 |
| Fusin | is ext3fs good, or is another fs more accurate? | 13:06 |
| viric | /dev/mmc*, for the SD block devices | 13:07 |
| Fusin | thx for this information :) | 13:08 |
| viric | for fs, you will find many different preferences | 13:09 |
| Fusin | i want to use the 8gb m ostly for music, pictures and maybe video. mostly static (seldom rewrite) | 13:10 |
| viric | I don't think fs are going to make any difference about that | 13:11 |
| whitequark | wpwrak: I've finally did that. the seventh CP2102 finally works!! :) | 13:12 |
| whitequark | wpwrak: probably that NC pin was the caus | 13:12 |
| whitequark | *cause | 13:12 |
| whitequark | wpwrak: also, it still heats, too much for a simple usb-uart bridge, but much less than before | 13:15 |
| wpwrak | whitequark: (ultrasound) nice ! | 14:05 |
| wpwrak | whitequark: (#7 lives) even better ! ;-) | 14:05 |
| Fusin | one step forward ;) | 14:11 |
| wpwrak | ultrasound sounds interesting. could be more efficient than all that scrubbing i do. | 14:18 |
| rozzin | Hm. Seems my openwrt build-environment is being contaminated by things on the host machine. | 14:26 |
| rozzin | Pygame finds an smpeg header, and wants to use it. | 14:29 |
| whitequark | wpwrak: ultrasound is ultra-awesome | 14:29 |
| whitequark | wpwrak: i can't ever say HOW it is freaking awesome | 14:29 |
| wpwrak | whitequark: ;-) did you get one with heating ? | 14:30 |
| whitequark | wpwrak: it is even more awesome when combined with flux-off. then all the dirt just goes away in beautiful stains | 14:30 |
| wpwrak | they're cheaper than i thought. low end starts < USD 100, even in argentina. | 14:30 |
| wpwrak | wow. strains. your boards must be really dirty ;-) | 14:31 |
| whitequark | wpwrak: yeah, my one is just a bit more expensive than $100, and it is really big, compared to some cheaper ones on the market | 14:32 |
| whitequark | wpwrak: (strains) the dictionary said 'stains'. well, there was a lot of RMA residues. you know, they're nonconductive, but ugly | 14:32 |
| whitequark | and that thing got all the board perfectly clean. no flux at all | 14:33 |
| whitequark | and, according to my feelings, no fat (from fingers) too, through that may be the combination of flux-off with water | 14:34 |
| wpwrak | (non-conductive) you may find that they aren't really ... i had circuits that didn't come out of reset because the flux conducted well enough to partially cancel the effect of a pull-up. | 14:34 |
| whitequark | huh, now I don't have to worry about that at all =) | 14:34 |
| rozzin | Oh, that might explain why dbus-x needed me to manually build libSM, too.... | 14:36 |
| whitequark | wpwrak: so, my opinion is that the device (CT-405) is the awesome essence of awesomeness | 14:38 |
| wpwrak | interesting stuff indeed. i find the endless scrubbing quite inconvenient (and also a bit risky), so that may be something useful to try. | 14:38 |
| whitequark | wpwrak: absolutely. | 14:40 |
| Action: whitequark is very excited about it and ultrasound-washes everything he sees | 14:41 | |
| rozzin | Hm. Nope--dbus-x needing libSM but not specifying that looks like a bug. | 14:53 |
| rozzin | Oh, nope--doesn't depend on libICE, either. | 14:55 |
| Action: rozzin removes libice-dev from his host system, does a `make clean' on libICE in openwrt, and watches dbus-x build successfully without libICE or libSM. | 14:58 | |
| rozzin | I wonder how many packages this is happening for.... | 15:03 |
| Action: rozzin starts rethinking autoconfiguration for his own packages.... | 15:03 | |
| whitequark | anyone knows how to etch brass? | 15:37 |
| C-Keen | whitequark: http://www.instructables.com/id/Etching-brass-plates/ | 15:41 |
| C-Keen | whitequark: they require registration but bugmenot usually has an account that works | 15:41 |
| rozzin | I wonder if dbus really needs to be using AC_PATH_XTRA rather than AC_PATH_X.... | 15:45 |
| whitequark | C-Keen: hm, looks like FeCl3 is fine for that | 15:48 |
| C-Keen | whitequark: I have to say that I have never tried this myself | 15:53 |
| whitequark | C-Keen: I'm trying that right now ;) so you'll soon have some real info about the process | 15:55 |
| whitequark | I want to etch the brass plates to make solder paste masks. manually applying the paste for ~8 board is boring enough | 15:56 |
| C-Keen | heh | 15:56 |
| Fusin | . | 16:14 |
| Fusin | what's wrong with ubuntu? doesn't know /dev/usb0 (I see only /dev/usbmonX'es) | 16:38 |
| Fusin | Laptop is an eeePC 1000 HG, internet connection is per GPRS (cellphone-chip) | 16:40 |
| whitequark | Fusin: that's a network interface, not a device file | 16:55 |
| whitequark | try "ip link" | 16:55 |
| Fusin | right, internet goes over ppp0, but for connecting the nanonote i need an usb0 (as in booklet and wiki), but i can't ifconfig usb0 | 16:58 |
| Fusin | how do i setup that one? | 16:58 |
| whitequark | Fusin: well, if you load a corresponding module on nanonote and plug it into usb, the interface will appear automatically | 16:59 |
| whitequark | I don't have a NN, so you probably should ask someone else how to do that exactly on your distribution | 16:59 |
| Fusin | oh, i just bootet the nano, and voila: the usb0 is availlable in ubuntu :D | 17:00 |
| C-Keen | Fusin: the usb0 network device will only be available when the device is detected | 17:00 |
| C-Keen | Fusin: so only if you plug in your powered nanonote you will see it | 17:01 |
| Fusin | seems so | 17:01 |
| Fusin | lol | 17:01 |
| C-Keen | that's how it works | 17:01 |
| C-Keen | your kernel will see the even on usb, match the product / vendor id against a list and load up a network device driver that will act under the name of usb0 | 17:02 |
| C-Keen | without the usb events happening there will be no device | 17:02 |
| Fusin | thx | 17:11 |
| wpwrak | whitequark: (clean everything) i hope you don't have pets ;-) | 17:13 |
| wpwrak | whitequark: interesting: http://www.circuitnet.com/articles/article_40106.shtml | 19:04 |
| wpwrak | whitequark: low power, high frequency, and if possible variable frequency | 19:05 |
| --- Sun Apr 17 2011 | 00:00 | |
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