irclog2html for #elinux on 20050506

00:35.49prpplaguechouimat: yea, read about it on groklaw earlier
01:45.55prpplagueCrofton|laptop: my early morning rant is up on the archive now
01:46.00prpplagueCrofton|laptop: http://ibot.rikers.org/%23elinux/20050505.html.gz
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03:13.18chouimat|Zzzznight
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07:45.12T0mWgak
07:46.16T0mWa penny here, a dime there ...  The customer wanted to know how cheap I could make a 1000 lot design.
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14:00.37prpplaguemorning folks
14:01.16prpplagueis it my imagingation or has there been alot of "connection timed out" disconnects lately?
14:18.32chouimatmorning
14:22.22prpplaguechouimat: lo ho
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14:24.25CosmicPenguinMorning folks
14:24.54prpplagueodd, i don't recall seeing a 2.4.30 release for arm
14:25.03prpplagueanyone seen that?
14:25.52prpplagueCosmicPenguin: http://ibot.rikers.org/%23elinux/20050505.html.gz
14:26.07prpplagueCosmicPenguin: my rant about LAK is there now if you are interested, hehe
14:41.25CosmicPenguinI didn't see that about your confrence
14:41.36CosmicPenguinKeep C&W in the loop and let them know that they need me to come down and drink beer
14:42.05prpplaguehehe, will do
14:43.47chouimathi prpplague CosmicPenguin
14:43.47CosmicPenguinAnd the funny part is the spansion chips don't do CFI
14:44.01CosmicPenguinDid I say funny?  I mean tragic
14:45.51prpplagueCosmicPenguin: yea
14:46.24prpplagueCosmicPenguin: 30 secs of reading the datasheet and he'd have his answer
14:46.52prpplagueCosmicPenguin: you should see their website too
14:47.07CosmicPenguinIt sucks when you don't end up as smart as your marketing promises
14:47.18prpplagueCosmicPenguin: it puts on a show like they are mobile OS gods
14:47.26prpplagueCosmicPenguin: hehe
14:48.14CosmicPenguinWell, technically, if you put dos on a floppy and carry it to the next building, its a mobile OS
14:49.07prpplagueHA
14:49.56CosmicPenguinWhat sort of linux developer sends code in a damn .zip file?
14:50.58prpplaguehehe
14:51.13prpplagueCosmicPenguin: yea, that drives me nuts
14:51.43prpplagueCosmicPenguin: the one i hate is when ppl ask about doing arm dev under cygwin
14:52.13CosmicPenguincolinux is ok
14:55.25T0mWheh, yeah, zip your linux data
14:56.12T0mWI recall running Windows3 and wondering who was using all those "tgz" and "tar" files
14:56.52T0mWTrumpet + Winsock
14:58.04T0mW:)
14:58.20T0mWCrofton: been a while, hasn't it?
14:59.17T0mWCosmicPenguin: my problem wasn't letting go of zip files, it was letting go of WordStar (Joe)
15:01.26chouimatwordstar ....
15:01.31CosmicPenguinmmm... wordstar
15:01.54CosmicPenguinI recall wordstar on the trusty PC XT
15:01.56chouimatand then you switch to pc and you're stuck with edlin
15:02.05CosmicPenguinI think my dad still has that boxen actually - we should fire it up
15:02.11CosmicPenguin8088 lovin'
15:03.59prpplagueCosmicPenguin: hehe, i still have a caldera dr-dos cd
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15:11.04T0mWhmmmm, "I don't expect you will see any price breaks for anything under 50k units per year"
15:11.08T0mWright
15:12.06CosmicPenguinT0mW: processor?
15:12.24T0mWLPC2106BBD48
15:12.46T0mWARM7TDMI + 128K Flash + 64K SRAM
15:12.50CosmicPenguinRight - but was the processor the component in question in the previous comment?
15:12.57T0mWyeah
15:13.16CosmicPenguinheh
15:13.21CosmicPenguinThats a lot of processors right there
15:13.31T0mWI only thought that this design would be, maybe, 500..1000 units/yr
15:13.52T0mWcustomer tells me that current yearly volume is around 5000/yr
15:14.24T0mWCosmicPenguin: new design, so far I've got it down to $20.23 material cost
15:15.06CosmicPenguinniceness
15:15.33T0mWyah, it has been an interesting exercise, now if I can get purchase order....
15:15.55T0mWoh, that includes the PCB
15:22.52prpplagueT0mW: wow
15:23.10prpplagueT0mW: how many layers?
15:23.19T0mWprpplague: 2
15:23.35prpplagueT0mW: wow and board size?
15:23.45T0mW1.5" X 3.0"
15:23.52prpplaguenice
15:24.16prpplagueT0mW: roughly the same size as the board i'm working with, but its 6 layers
15:24.37T0mWyeah, he needs the board bigger to meet the mounting holes inside the unit...  I should make it smaller and put it inside a dongle?
15:25.14T0mWproblem is that the RJ45 connectors don't come any smaller
15:26.57T0mWbut, the plastic enclosure will probably be more expensive than the cost of enlarging the PCB
15:27.14T0mW$1+
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15:27.44T0mWprpplague: what processor is on that 6 layer board?
15:27.55prpplagueT0mW: lh79520
15:28.30T0mWheh, BGA Flash + SDRAM then
15:28.51prpplagueT0mW: negative, no bga
15:29.00T0mW? interesting
15:29.19prpplagueT0mW: all solderable by hand
15:35.38T0mWprpplague: albiet that you would need a microscope to do that
15:36.35T0mWs/albiet/albeit/
15:37.26prpplagueT0mW: i didn't have any problems doing it without one
15:37.48prpplagueT0mW: of couse once we have it all ready, it'll be done by a p-n-p machine
15:39.32T0mWI could shrink the board to perhaps 0.850" X 2.4", that might be interesting to do...
15:41.24T0mWheh
15:42.36T0mWthe processor runs around 30ma active current, the RS232 stuff is around 10ma current...  Too bad I couldn't power this thing off an RS232 connection: e.g. the voltage between DTR + GND
15:43.00T0mWbut that is only going to be about 7ma
15:43.36T0mWOOPS!  I forgot, I need a crystal for the processor!
15:43.46T0mWdamn, more cost
15:59.33T0mWHmm, processor costs $3 more than I had estimated
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16:11.41prpplagueanyone have a vr-3?
16:20.17CosmicPenguinDoes any one else think that replacing initrds with initramfs is at best a mixed blessing?
16:20.46CosmicPenguinBeing able to attach a small initrd based filesystem on the kernel is a neat embedded trick - at least IMHO
16:21.43prpplagueCosmicPenguin: i agree
16:21.51prpplagueCosmicPenguin: pretty handy in book
16:22.00prpplagueCosmicPenguin: especially when bringing up a new board
16:23.13prpplagueCosmicPenguin: of course thats my $0.02 , andersee and TimRiker might have more experience to add
16:24.14CosmicPenguinprpplague: oh, I totally agree
16:24.45CosmicPenguinThats not to say that I don't agree with the premise of the initramfs
16:25.22CosmicPenguinIts 100% better then the initrd crap that Redhat pulls, for example
16:25.43CosmicPenguinBut in the embedded world, sometimes we do it because we don't actually have any storage media elsewhere
16:25.44prpplagueyea
16:26.42CosmicPenguinWell - crapola....
16:37.23CosmicPenguinheh
16:37.57CosmicPenguinBrad LaRonde is in the house!
16:38.14TimRiker=)
16:38.52CosmicPenguinI don't know about the rest of you, but I still think FLTK was a good choice
16:39.05CosmicPenguinIT remains my personal favorite toolkit to develop in
16:39.35prpplagueTimRiker: would it be possible for you to time the boot up process?
16:39.46prpplagueCosmicPenguin: still mine as well
16:39.55prpplagueCosmicPenguin: i crank out little apps almost every week
16:40.22TimRikerprpplague: sure.
16:43.39TimRikerabout 32 seconds till the launch pad finishes drawing.
16:43.57TimRikeror do you want info someplace before that?
16:45.05prpplagueTimRiker: naw, thats fine, thanks
16:45.20prpplagueTimRiker: you opinion, does it seem like a long time?
16:45.46TimRikerabout 3 seconds for kernel boot, another 17 or so for everything up to X.
16:46.39TimRikerthe 2 seconds without anything on screen bother me more than the 30 seconds for the rest.
16:46.44prpplagueTimRiker: wow 3 secs? is that for the decompression?
16:47.11TimRikerprobably so. I don't have a console on it here. nothing shows up till the kernel frame buffer kicks in.
16:47.24prpplaguehmm
16:47.32TimRikerhmm... actually iirc the kernel is xip.
16:47.38prpplagueTimRiker: ahh
16:48.14TimRikerlikely just the normal loop calibration, plus a delay on the bootloader to wait for serial input or something.
16:48.47prpplagueTimRiker: hmm, i'm getting about 10secs for the kernel to decompress
16:49.02TimRikerouch. that's a long time.
16:49.04prpplagueTimRiker: i'm thinking i might try going xip
16:49.17prpplagueTimRiker: 60mhz with a 16 bit databus for flash and ram
17:00.47TimRikerxip saves you on boot time, but typically costs you on run performance.
17:01.12prpplagueTimRiker: hmm, well i need all the perfomance i can get
17:01.28prpplagueTimRiker: so i'll probably just do what i can to make the image as small as possible
17:01.51TimRikerif the device witll suspend/resume and you're not trying to fit into sram, I don't think I'd recommend xip
17:02.05prpplagueTimRiker: pb_ seemed to think running an uncompressed kernel might help, but i was think that would be a trade off since it would take long to transfer the bigger image to ram
17:02.19TimRikercheck the celf bootup time stuff. just precomputing the bogomips gains you a lot.
17:02.50TimRikerthen move devices and processes that are not required for boot (ie: display) to modules and background proceses.
17:03.14TimRikerdisplay something on screen as soon as possible (ie: with the bootloader) and it'll "feel faster"
17:03.59prpplagueTimRiker: the actuall boot time is small about 2 secs
17:04.13TimRikeryeah, I'd stay with a compressed kernel. avoid a doubly compressed kernel though. ie: tuxscreen still has a compressed kernel stored on a compressed filesystem (jffs2). kinda silly that, just never fixed it.
17:04.13prpplagueTimRiker: its the decompressing the kernel thats taking forever
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17:04.57TimRiker10 seconds is forever. that does not sound right to me.
17:05.20TimRikercheck that your caches are enabled correctly?
17:05.22prpplagueTimRiker: even at that speed
17:05.44TimRikeryeah. /me grabs another board to compare....
17:08.23TimRikerI'm getting about 3 seconds for decompression on my osk5912
17:08.33TimRikerit's at 192Mhz iirc
17:09.04prpplagueTimRiker: with 32-bit bus?
17:18.04TimRiker16 bit flash iirc. 32 bit ram.
17:18.24TimRikerosk5912 schematics are available, you could check. ;-)
17:20.17T0mW~ibot ibcs
17:20.18ibotwell, ibcs is crap
17:20.26T0mW~botsnack
17:20.26ibot:), T0mW
17:21.57prpplaguecrude, i'm getting code block again today :(
17:22.50prpplaguetime for some groove salad
17:24.24prpplagueTimRiker: looks like the nor flash is 32
17:28.15prpplagueTimRiker:  looks like flash is 32 and ram is 16
17:33.15TimRikerhmm. could be.
17:33.53prpplagueTimRiker: the flash is 16-bit with two banks, upper and lower, the ram is just a single bank at 16
17:36.30TimRikerk
17:36.59TimRikershould ask in #ol about boot times for nand only booting. I don't have one of those. I expect it's longer.
17:40.46prpplagueTimRiker: yea, i was just curious, i've still got some hacking for sd/mmc to do
17:41.04prpplagueTimRiker: probably worry about boot times when more of the core stuff is done
17:44.34prpplagueTimRiker: thanks for the info
17:44.41prpplagueTimRiker: i appreciate the efforty
17:48.04chouimatall external usb/fw hdd are ide with an adapter inside the case?
17:48.27prpplaguechouimat: all the ones i've seen
17:49.05chouimatprpplague: ok ... so it's cheaper to get the drive and the enclosure separately from what I have seen
18:23.02T0mWtoo bad surface mount ICs have to be mounted flush with the pcb, you cannot put parts underneath them
18:23.02prpplagueyikes
18:23.05prpplagueits about to rain
18:23.15T0mWprpplague: tsunami?
18:23.25prpplagueT0mW: naw, just some tropical stuff
18:23.34T0mWprpplague: oh, cyclone
18:23.43prpplagueT0mW: naw
18:23.49T0mW:D
18:23.55prpplagueT0mW: http://www.weather.com/outlook/travel/businesstraveler/local/BGI:9
18:24.16prpplagueT0mW: purple spot just above the weather channel logo on the radar
18:26.45T0mWprpplague: http://www.weather.com/weather/local/USPA0025?from=search_city
18:28.41T0mWprpplague: your map is prettier than my map.  :(
18:29.04prpplaguehehe
18:29.21T0mWyour map has all those pretty red spots on it
18:29.35prpplagueT0mW: whats funny, if you click on the map, it shows a map that doesn't even have barbados on the picture
18:30.25T0mWwell, you just don't live out in the sticks somewhere, you live on a remote tropical island
18:30.56T0mWprpplague: boy, when people told you as a kid to "get lost", you really took that to heart
18:31.03prpplagueT0mW: hehe, yea well, the map is available, you have to just go to a different url
18:31.08prpplagueT0mW: hehe
18:31.33prpplagueT0mW: its like the ppl who made the link in the db had no clue where barbados was on the map
18:31.44T0mWprpplague: you know what an RJ45 coupler is (female-female 8 pin)?
18:31.53prpplagueT0mW: yea
18:32.24T0mWI'm thinking of sticking the electronics inside one of those and adding about another inch to the length.
18:32.33T0mWI dunno if it would fit...
18:32.53T0mWprpplague: would be a great gag, take that to the customer
18:33.08prpplagueT0mW: why not use one of the digi units
18:33.14prpplagueT0mW: shoudl run your code
18:33.18T0mWyeah
18:33.21T0mW$$$
18:33.34T0mWProcessor I have is < $9
18:33.45prpplagueT0mW: yea, but it would be cute to show
18:33.53T0mWQFP64
18:34.05T0mWwonder what the net+arm would be
18:34.13T0mWlike the digi
18:34.28T0mWonly if it cost less
18:34.51T0mWthis processor has A/D conversion, I need that
18:34.56prpplaguehttp://linuxdevices.com/news/NS8386088053.html
18:35.34T0mWyeah, seen that, one of the chips I have only measure 5/16" square
18:35.42prpplaguewow
18:36.48T0mWprpplague: http://www.standardics.philips.com/packaging/pkgoutlines/pdf/sot313-2.pdf
18:38.43T0mWthe one I'll probably use is 0.5" square
18:39.10prpplaguenice
18:39.24T0mWyeah, reduced pin count
18:40.15T0mWproblem is that the tiny one uses 1.8v + 3.3v supplies.  The larger chip only uses 3.3v and has +5v tolerant pins
18:40.47T0mWeither way, I'd need two supplies derived from 12v
18:41.25T0mWhmm, wonder if someone has a 3.3v + ajustable in an SOT-223 package?
18:42.43T0mWprpplague: bitch is finding that sort of stuff, takes me a lot of time wandering the net and webpages to find the "goodies"
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18:43.31prpplagueT0mW: yea, btdt
18:43.46T0mWstdt (still there doing that)
18:43.49T0mWheh
18:44.14T0mWit is not only that you have to do software + hardware, but data mining as well!
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18:51.22prpplaguecrude, my sd/mmc code isn't working now that i've shoved it into blob
18:53.14TimRikerbummer. did you ever get the pet mmc blob code? I don't know if it made it to the main tree or not.
18:55.12prpplagueTimRiker: not that i am aware of, how was the mmc implemented?
18:55.20prpplagueTimRiker: via a controler or via spi?
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19:02.00TimRikerdon't recall. it was on the 1510. I don't recall if there was a mmc controller. seems to me there was.
19:02.17TimRikeryeah, pretty sure the 1510 has mmc support in it.
19:04.53prpplagueTimRiker: would have been nice to see that code for blob
19:09.26TimRikerprpplague: I'm pretty sure it at least went to erik.
19:15.57prpplagueTimRiker: i'll ask him about it in the morning, he's already gone for the day
19:16.07prpplagueTimRiker: thanks for the info
19:46.24prpplaguethe rain just started
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