highaltitude.log.20080305

[00:08] <Laurenceb> yes
[00:09] <Laurenceb> whats Thread model about?
[00:10] <akawaka> you could try -mfpu=softfpa instead of -msoft-float
[00:10] <akawaka> but i'm not sure that will help
[00:15] <fnoble> doesn't seem to
[00:16] <fnoble> mmm... seems silly that the default compilation of gun-arm is for hardfp seeing as both arm7 and arm9 have no hard fp
[00:16] <fnoble> and they are by far the most common
[00:17] <fnoble> i must be missing something
[00:17] <akawaka> yeah
[00:17] <akawaka> where did you get the toolchain from?
[00:19] <fnoble> its the mac one from mikrocontroller.net
[00:25] Action: Laurenceb is writing up his project report
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[00:26] <Laurenceb> argg this is hard, not my idea of fun... I'm trying to write a short paragraph on why this is actually useful :P
[00:39] <akawaka> what is?
[00:40] <Laurenceb> oh degree work
[00:46] <Laurenceb> writing up my aerosol project for submission next term
[00:47] <Laurenceb> "this would be a very useful project, but we dont trust the radio so we cant launch it"
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[01:49] <Laurenceb> any latex users?
[01:49] <Laurenceb> I'm trying to work out citations...
[01:50] <akawaka> been a while
[01:50] <Laurenceb> \cite{blah}
[01:51] <Laurenceb> @misc{blah,STUFF="hello world"}
[01:51] <Laurenceb> in the bib file... but it doesnt work
[01:54] <Laurenceb> on god I dont even know what I'm doing
[01:54] <Laurenceb> so I want a superscript with a number that references something in the bibliography
[01:55] <akawaka> yeah
[01:55] <Laurenceb> where do I start ? :P
[01:55] <akawaka> okay, lemme stick the backup tape in my brain
[01:55] <akawaka> the \cite{blah} part is right
[01:56] <akawaka> you have \bibliography{filename} in your file?
[01:56] <akawaka> (without the bib extension)
[01:56] <Laurenceb> no
[01:56] <Laurenceb> ok
[01:57] <akawaka> actually, not sure
[01:57] <akawaka> http://web.mit.edu/answers/latex/latex_bibliography.html
[01:58] <Laurenceb> nah doesnt help
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[02:10] <fnoble> wtf is going on with freenode? or is it just me?
[02:10] <Laurenceb> me too
[02:10] <Laurenceb> I was on my own :D
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[02:18] <akawaka> netsplit
[02:20] <Laurenceb> ok, the mit example doesnt work
[02:21] <Laurenceb> oh you have to run it twice
[02:21] <Laurenceb> retarded
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[02:33] <Laurenceb> http://pastebin.com/d19c23b3f
[02:33] <Laurenceb> ^ a rough outline for a writeup
[02:33] <Laurenceb> latex isnt too hard :D
[02:33] <akawaka> better than word
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[02:36] <Laurenceb> time for some early breakfast :P
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[02:44] <Laurenceb> stupid machine keeps rebooting itself
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[02:49] <Laurenceb> wazzup with irc?
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[03:12] <Laurenceb> haha http://www2.b3ta.com/host/creative/57746/1204145988/wikipaedophilecopy.jpg
[03:15] <Laurenceb> I was thinking about my radio problem, it might still be a timing issue
[03:17] <fnoble> damnit! it works!
[03:18] <Laurenceb> RocketBoy's screenshots arent high enough resolution to be sure... the apparent output jamming at 100% could be an aliasing effect
[03:18] <Laurenceb> cool :P
[03:18] <fnoble> just seems that the assembler defauts to soft fp and gcc to hard
[03:18] <Laurenceb> right
[03:18] <akawaka> what was the required magic?
[03:19] <fnoble> and the assembler objects were being fed into the linker first, making it decided it wanted soft fp
[03:19] <fnoble> tell the assembler to use hard fp
[03:19] <akawaka> ah yes
[03:19] <akawaka> i thought you wanted soft fp?
[03:19] <Laurenceb> yes, I'm confused
[03:19] <fnoble> i dont care, im not using any floating point instructions
[03:20] <Laurenceb> ha
[03:20] <akawaka> haha
[03:20] <akawaka> thats the spirit!
[03:20] <fnoble> its just a retarded ABI problem
[03:20] <fnoble> that even if your not using fp, the linker looks at what flags are set in the elf header and complains if they dont match
[03:21] <fnoble> regardless of what the binary actually contains
[03:21] <fnoble> there is no option for "i dont care because im not using fp"
[03:21] <Laurenceb> are you loading the binary on using jtag?
[03:21] <Laurenceb> is there an rtos or anything?
[03:21] <fnoble> no :( the usb jtag i have only works with crossworks which i dont currently have
[03:22] <fnoble> so loading through the serial port
[03:22] <fnoble> yeah, running tnkernel
[03:22] <Laurenceb> ok
[03:22] <Laurenceb> nice
[03:22] <Laurenceb> a dev board or your own design?
[03:23] <fnoble> own design is on its way
[03:23] <fnoble> on a dev board for now
[03:24] <fnoble> should have fat filesystem and sd card going now :)
[03:24] <Laurenceb> cool, is that built into tnkernel?
[03:25] <Laurenceb> or is it just a pure rtos?
[03:26] <Laurenceb> is this going on the rocket?
[03:27] <fnoble> no, tnkernel only does basic task scheduling
[03:27] <fnoble> no, this one is for the balloon
[03:27] <Laurenceb> I'm just reading the site
[03:27] <Laurenceb> I'm going to work on some code for an IMU soon as I've got more time
[03:29] <fnoble> yeah, that sound like pretty challenging stuff
[03:30] <fnoble> i think ed's got one on the back burner too
[03:30] <Laurenceb> I've been reading up on it on and off
[03:31] <Laurenceb> my solution will probably end up being a bit odd :P
[03:31] <Laurenceb> I dont like quaternions
[03:32] <Laurenceb> right, time to finally get some sleep, cya
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[13:12] <edmoore> hi fnoble
[13:12] <fnoble> hello
[13:12] <fnoble> gah, i need crossworks so i can debug
[13:13] <edmoore> ok, the mac one is being gay
[13:13] <fnoble> ah ok
[13:13] <edmoore> but I reinstalled a different version of windows and it's being rock solid
[13:13] <edmoore> so I'll put the windows crossworks on that
[13:13] <fnoble> can you dcc it to me?
[13:13] <edmoore> and then we can play
[13:13] <edmoore> no, as i don't dcc
[13:14] <edmoore> i could sftp it to you tho
[13:14] <fnoble> why?
[13:14] <fnoble> ok, as you wish
[13:14] <edmoore> tho you can just download the windows version if you want
[13:14] <fnoble> whats wrong with the mac crossworks?
[13:14] <edmoore> and I can give you a key
[13:14] <edmoore> oh, it was buggy
[13:14] <edmoore> he warned me of that
[13:14] <fnoble> ok, well i have it installed actually
[13:14] <edmoore> wouldn't let me install the lpc package
[13:14] <fnoble> too buggy to use?
[13:14] <edmoore> see above
[13:14] <fnoble> ok
[13:14] <fnoble> email me the key then
[13:15] <edmoore> you have to use eval versions of the mac one actually
[13:15] <edmoore> try it- it's a nightly build so it might be sorted
[13:15] <edmoore> let me link you
[13:15] <fnoble> ok
[13:15] <Laurenceb> hi all
[13:16] <fnoble> hey laurenceb
[13:16] <Laurenceb> I think I've worked out the radio problem :D
[13:16] <edmoore> http://www.rowleydownload.co.uk/snapshots/arm_crossworks_wavefront_macos_
[13:16] <edmoore> x86.dmg
[13:16] <fnoble> was a bit of a late one last neigh eh
[13:16] <edmoore> http://www.rowleydownload.co.uk/snapshots/arm_crossworks_wavefront_macos_x86.dmg
[13:16] <Laurenceb> hehe, I need to get my report underway
[13:16] <edmoore> and then go eval version
[13:17] <edmoore> you'll need to install the lpc package - it tells you how to do that on the spash screen
[13:17] <fnoble> ok
[13:17] <edmoore> I'm not 100% sure how to get it to not do it's own hardware startup routines
[13:17] <edmoore> might need some playing to make it defer to the TNK
[13:18] <fnoble> ok
[13:18] <Laurenceb> the "blocky effect" was an aliasing effect in truetty, not real, IMO the real problem is a timing lag, caused by the design of the bitbanging loop in my code. I think its solvable, hopefully without resorting to assembler
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[13:19] <edmoore> could you bring it to the granta?
[13:19] <edmoore> we can delight jenny by doing code development loudly at one end of the table
[13:19] <fnoble> yeah, will do
[13:20] <fnoble> god was up till 5 this morning
[13:20] <fnoble> coding is bad for you
[13:20] <edmoore> you tart
[13:20] <edmoore> any cool stuff to report?
[13:24] <edmoore> fnoble:
[13:24] <fnoble> not really, got fatfs integrated with tnkernel but it keeps halting the cpu for some unknown reason
[13:24] <edmoore> eek
[13:24] <edmoore> how big is it?
[13:25] <fnoble> <20kb
[13:25] <fnoble> not too bad
[13:25] <edmoore> still quite chunky
[13:25] <edmoore> is it in the svn?
[13:25] <fnoble> nope, want to get it working first
[13:25] <edmoore> also w/o being annoying, google code do a really good svn and project management thing
[13:26] <fnoble> ok, cool
[13:26] <edmoore> with command line of course but also wiki-like graphical compare+timeline features
[13:26] <fnoble> we are going to open source it anyway arent we
[13:26] <fnoble> where are these support packages located?
[13:26] <edmoore> recommended to me by chris who's just nailed his compsci project with its help
[13:26] <edmoore> yeah
[13:26] <edmoore> i mean we could always diminuatively turtleneck it so the whole world doesn't see
[13:27] <edmoore> rowleydownload.co.uk iirc
[13:27] <edmoore> but it should say in the thingy
[13:27] <edmoore> shall I set up a project?
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[13:32] Nick change: edmoore_ -> edmoore
[13:32] <edmoore> sorry fnoble
[13:32] <edmoore> dodgy wifi in bar area
[13:32] <edmoore> I'll make a googlecode project
[13:32] <fnoble> yeah, get a google proj iuw
[13:32] <fnoble> think i got crossworks for mac working
[13:33] <fnoble> seemed to be dieing from permission problems
[13:33] <fnoble> so i launched it as root and i can get the packages installed :)
[13:34] <edmoore> i made it w/r
[13:34] <edmoore> still gave me stress
[13:35] <edmoore> how did you launch as root
[13:35] <edmoore> ?
[13:35] <fnoble> well, the usb jtag connects to the board :)
[13:35] <edmoore> also, what sort of license do we go for? we have to pick one, and I don't really understand them all. gpl3?
[13:36] <fnoble> from the console run sudo /Applications/Crossworks for ARM 2.0/Cross.... .app/Contents/MacOS/crossstudio &
[13:36] <fnoble> gpl is ok i think
[13:37] <edmoore> oh, as simple as that
[13:37] <edmoore> ok
[13:37] <edmoore> bit dangerous though....
[13:38] <edmoore> badgerworks is taken!! :o
[13:38] <edmoore> what do we call it?
[13:38] <edmoore> ferganded?
[13:40] <edmoore> fnoble: do you have a google account name?
[13:40] <edmoore> ie a gmail address
[13:40] <edmoore> so I can make you an admin
[13:41] <fnoble> yes, fergusnoble@gmail.com
[13:41] <fnoble> what did you call it?
[13:41] <edmoore> ferganded
[13:41] <edmoore> code.google.com/p/ferganded
[13:42] <fnoble> cool
[13:42] <edmoore> oh wait fergus
[13:42] <edmoore> the reason badgerworks is taken is cos I took it
[13:43] <edmoore> badgerworks.googlecode.com
[13:43] <edmoore> sigh
[13:43] <edmoore> ok, you're now an admin
[13:48] <edmoore> fnoble: sorry, one of those days :)
[13:49] <fnoble> heh, cool
[13:50] <edmoore> how's it going?
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[14:11] <edmoore> fnoble: beware sudo launching apps
[14:11] <edmoore> i think it just hosed my login session
[14:12] <edmoore> mac is not hard at work re-indexing the entire spotlight after a forced reboot
[14:12] <edmoore> no user app should be able to do that, but that I sudo'd in I think made the difference
[14:23] <fnoble> yeah, im a little concerned about running an app thats clearly FULL f bugs as root
[14:33] <edmoore> yes
[14:33] <edmoore> never again
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[14:35] <jcoxon> afternoon asll
[14:35] <jcoxon> all*
[14:36] <edmoore> hi jcoxon
[14:37] <jcoxon> hey edmoore
[14:37] <jcoxon> just got my boiler serviced
[14:37] <jcoxon> now everything is warm again
[14:39] <edmoore> yum
[14:39] <jcoxon> indeed
[14:39] <fnoble> that said, it does seem to be working quite reliably
[14:39] <jcoxon> oooo you guys developing?
[14:39] <jcoxon> my CF gps unit arrived today
[14:40] <fnoble> just trying out crossworks for mac
[14:40] <jcoxon> going to destroy it now so that it'll emerge as a cheap ttl sirf II gps
[14:40] <fnoble> unfortunately, its full of bugs that mean it only runs as root :(
[14:40] <jcoxon> :-p
[14:40] <jcoxon> I love root
[14:40] <jcoxon> i'm really terrible, su rather than sudo
[14:43] <fnoble> edmoore: going to hist of maths?
[14:43] <edmoore> no, supervision annoyingly
[14:43] <edmoore> working for it now
[14:43] <edmoore> i'm not trusting it to run sudo again
[14:44] <edmoore> would rather boot into doze after it destroyed my login session
[15:06] <jcoxon> right gps is now in pieces
[15:08] <fnoble> edmoore: does our current crossworks licence work with the mac version?
[15:08] <edmoore> no
[15:08] <edmoore> has to be eval licenses for that
[15:08] <edmoore> until release
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[15:09] <fnoble> ok, howd you get a mac eval liscence?
[15:09] <fnoble> do you have one you could mail me?
[15:10] <edmoore> no, you have to follow the instructions in tools: license manager
[15:13] <fnoble> how long does it take usually?
[15:13] <edmoore> it's a human being
[15:13] <edmoore> has been 5 mins
[15:13] <edmoore> has been till 9am the next morning
[15:13] <fnoble> ok, cool
[15:14] <fnoble> did you say that chmodding the crossworks folder doesnt work?
[15:14] <edmoore> i did it graphically
[15:14] <edmoore> i.e cmd + I
[15:14] <edmoore> but 755 might do it too
[15:18] <fnoble> ok, just did 777 to thw whole crossworks directory
[15:18] <fnoble> seems to work
[15:18] <fnoble> now to get the whole lot to work under crossworks
[15:19] <edmoore> ok awesome
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[15:30] <fnoble> ok, its allowing me to debug my externally compiled executable
[15:30] <fnoble> to a point
[15:30] <fnoble> can set breakpoints etc., but can see the source
[15:37] <jcoxon> edmoore, is there a chance you could send me my xD card?
[15:37] <edmoore> yes of course
[15:37] <jcoxon> :-) as i don't have a memory card for my normal camera :-p
[15:38] <jcoxon> was planning to take some pictures of this disassembled CF gps
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[15:46] <fnoble> brb
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[17:11] <edmoore> hi fnoble, jcoxon
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[17:13] <jcoxon> hey edmoore
[17:13] <jcoxon> urgh looks like we had a netsplit
[17:13] <edmoore> ?
[17:14] <jcoxon> oh you missed it
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[17:15] <jcoxon> edmoore, whats the best way of identifying wires on this gps
[17:15] <jcoxon> if i don't have the pinout
[17:16] <edmoore> gosh
[17:16] <edmoore> ok, 0v might be common with the metal case
[17:16] <edmoore> assuming it has a metal case/rf shield
[17:16] <edmoore> beyond that, I'm not sure I can help you much
[17:16] <edmoore> maybe you can help me
[17:16] <jcoxon> so measure the resistance between the two?
[17:16] <edmoore> yeah
[17:17] <edmoore> should be 0
[17:17] <edmoore> in my terminal it doesn't seem to wrap text when i type commands at the prompt
[17:17] <edmoore> well, it wraps, but back onto the same line
[17:18] <edmoore> so it will overwrite "edmoore@computername >"
[17:18] <jcoxon> urgh
[17:18] <edmoore> any ideas?
[17:18] <edmoore> I have my own edited .bash_profile, but I've not noticed it causing this behaviour before
[17:18] willo (i=willosof@giardia.exploit.no) got netsplit.
[17:18] Tygrys^ (i=tygrys@moo.pl) got netsplit.
[17:18] <jcoxon> what terminal are you using?
[17:18] <edmoore> termianl.app
[17:18] <edmoore> terminal.app*
[17:18] <jcoxon> you can carry on if you add an \ to a line, hit enter
[17:18] <jcoxon> and then carry on typing
[17:19] <edmoore> yeah, but that's a bodge fix, not a solution to the problem :P
[17:19] <jcoxon> when you finally hit enter it'll stick the lines together?
[17:19] <jcoxon> well my terminal is quite happy
[17:19] <jcoxon> :-p
[17:19] <jcoxon> i'm not sure why its doing that
[17:20] <edmoore> no
[17:20] <edmoore> seems to be doing it since i had to hard reboot
[17:20] <jcoxon> hmmmmm
[17:20] <edmoore> it was terminal what crashed it
[17:20] <jcoxon> guess you could swap out the bash_profile file
[17:20] <edmoore> i knew something was up when I sudo opened something, then it asked for my password, and actually types the password in text as i was typing
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[17:22] <jcoxon> hmmmm, thats not good
[17:22] <edmoore> going to stick some laundry on
[17:22] <edmoore> brb
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[17:34] <edmoore> bk
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[17:38] <fnoble> back
[17:39] <edmoore> yo
[17:39] <edmoore> how's it going?
[17:39] <edmoore> I'm now free to code for the rest of the week
[17:43] <natrium42> -week+life
[17:43] <edmoore> well yes, that too
[17:43] <natrium42> :D
[17:45] <edmoore> fnoble: any luck with the fatfs?
[17:47] <fnoble> come over
[17:47] <fnoble> trying to wrestle crossworks into building the code
[17:47] <fnoble> got it to build, but now the jtag doesnt want to download it
[17:47] <fnoble> :)
[17:47] <edmoore> what's it doing to get in the way?
[17:47] <edmoore> right...
[17:47] <edmoore> sigh
[17:47] <edmoore> RTCK?
[17:48] <fnoble> yeah, thats ok, i can debug code already running
[17:48] <fnoble> some error in the reset script of the thing jigger
[17:48] <fnoble> *thingy
[17:49] <edmoore> the thing jitter
[17:51] <fnoble> want to come down?
[17:51] <edmoore> washing is on
[17:51] <edmoore> if you leave your washing in the machine after it's done then it's not exactly delicately removed by the next user
[17:51] <edmoore> tends to be srewn allover
[17:52] <edmoore> strewn*
[17:57] <fnoble> ok, cool
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[18:00] <fnoble> do you know what the dabort_handler is?
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[18:12] <edmoore> sorry, missed that
[18:12] <edmoore> in what context?
[18:14] <fnoble> its ok, its the data abort exception handler
[18:14] <fnoble> seems to be triggered by my code :)
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[18:29] <Laurenceb> hi all
[18:29] <Laurenceb> anyone know how to get your balance on vodaphone?
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[18:30] <Hiena> Good evening!
[18:31] <Laurenceb> hi
[18:31] <Laurenceb> my phone isnt working :(
[18:31] <Laurenceb> this is so annoying, it was ok yesterday... now ERROR 500
[18:32] <Laurenceb> and I cant even send SMS by hand
[18:32] <Laurenceb> I'm going to take it to the place I got the sim card from
[18:34] <Laurenceb> doh I'm out of credit
[18:34] <Laurenceb> thats insane, i sent 20 texts at max :(
[18:34] Action: Laurenceb kills vodaphone
[18:35] <Laurenceb> oh well at least it works
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[18:37] <fnoble> ok it works a lot smoother now im using the crossworks startup code
[18:37] <fnoble> i think the tnkernel stuff was at odds with the way crossworks was doing things
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[18:39] <Laurenceb> still its odd that I was getting error500
[18:39] <Laurenceb> but there was a delay of about 8 seconds, to be expected if it was an error from the network
[18:41] <Laurenceb> we're doing a flow test tomorrow, using an aerosol generator :D
[18:53] <Laurenceb> b around later
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[18:59] <edmoore> fnoble: suspected that'd be a problem
[18:59] <edmoore> it's fairly keen to do its own thing
[19:03] <Hiena> http://xkcd.com/227/
[19:05] <fnoble> heh
[19:05] <fnoble> ok, time for din dins
[19:05] <fnoble> bbl
[19:05] <edmoore> http://xkcd.com/231/
[19:05] <edmoore> k
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[20:12] <RocketBoy> BBL
[20:12] <jcoxon> woohoo
[20:13] <jcoxon> hehe, not that RocketBoy will bbl but i've got my gps working
[20:13] <laurence_> Rocketboy: I'll email you in a bit, my laptop is about to die
[20:13] <laurence_> :P
[20:13] <laurence_> I forgot to collect the power supply from the lab
[20:13] <jcoxon> quite interesting:
[20:13] <jcoxon> 3.03-XTrac2.0.2-C3PROD1.0
[20:13] <jcoxon> $PSRFTXT,TOW: 331960
[20:13] <jcoxon> $PSRFTXT,WK: 1469
[20:13] <jcoxon> $PSRFTXT,POS: 3978752 -3686 4968373
[20:13] <jcoxon> $PSRFTXT,CLK: 95581
[20:13] <jcoxon> $PSRFTXT,CHNL: 12
[20:13] <jcoxon> $PSRFTXT,Baud rate: 4800 System clock: 24.553MHz
[20:14] <jcoxon> (sorry for the flood)
[20:14] <laurence_> Rocketboy: basically I think that there is a timing problem with the radio, its slightly too slow due to way the send_char loop is constructed, but its solvable I believe
[20:14] <laurence_> the blocky effect I bet was a aliasing effect
[20:15] <laurence_> as truetty constructed the display
[20:15] <laurence_> if its timing was wrong, it behaved differently, and that usually happened, but not always, depending if the send_char loop was screwed up by an interrupt
[20:16] <laurence_> RocketBoy: can we borrow one of your radios? Just in case we cant sort it in time - we're going to use my radio design, but it might take a little while to be 100% reliable
[20:18] <jcoxon> bbiab
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[20:23] <laurence_> omg someone has stolen my identity
[20:23] <laurence_> I cant connect as Laurenceb
[20:23] <laurence_> and the password has been changed
[20:24] <laurence_> what the hell
[20:25] Nick change: laurence_ -> Laurenceb_
[20:26] <Laurenceb_> very odd
[20:26] <Laurenceb_> oh well my machine is dying, cya all
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[22:39] <akawaka> how do you go about connecting the parachite, balloon and cutdown device all together?
[22:40] <jcoxon> we usually go for a predeployed setup
[22:41] <jcoxon> so you the parachute is attached to the payload
[22:41] <jcoxon> another line goes up through the parachute to the balloon (the cutdown is placed above the parachute on this line)
[22:41] <jcoxon> on this line there is usually a block of polystyrene or a bottle top which the paracute rests upon
[22:41] <jcoxon> slightly slack
[22:42] <jcoxon> so when the balloon bursts or cuts down the parachute inflates and moves up off this rest
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[22:43] <jcoxon> hey edmoore
[22:43] <edmoore> hi jcoxon
[22:44] <jcoxon> got my gps to work
[22:44] <edmoore> cool
[22:44] <edmoore> decoded the lines then?
[22:45] <jcoxon> yeah
[22:45] <jcoxon> got GND, took a logical guess for +ve
[22:45] <jcoxon> and the light came on
[22:45] <jcoxon> then trial and error got the TX line
[22:47] <akawaka> not worried about the cutdown damaging the parachute?
[22:47] <akawaka> does the cutdown always activate?
[22:47] <edmoore> akawaka: pffff :)
[22:48] <jcoxon> the cutdown is usually 5-10cm above the parachute
[22:48] <jcoxon> and the cutdown is a little unreliable
[22:49] <jcoxon> but in my case thats usually due to the software rather then the hardware
[22:50] <akawaka> my main concern is getting rid of the balloon after it has burst
[22:50] <akawaka> incase it doesn't shred right
[22:51] <jcoxon> i wouldn't worry about that too much
[22:51] <jcoxon> the newer the balloon the better it'll shred
[22:51] <edmoore> still, worth cutting it away
[22:51] <edmoore> so have a clause that detects descent even if you havn't officially entered a descent phase
[22:52] <edmoore> nova1 got caught in shredded balloon
[22:52] <akawaka> not if cutting it explodes the parachute into a firey parachute-latex mess!:)
[22:52] <edmoore> won't burn
[22:52] <edmoore> no air
[22:52] <edmoore> too quick a bang
[22:52] <akawaka> good point
[22:53] <jcoxon> even on the ground they don't have that much of a bang
[22:53] <jcoxon> though you'll lose your hearing if you are too close
[22:53] <edmoore> it'll be fine - the air density is so thin that it doesn't transmit the shockwaves at all well
[22:53] <jcoxon> onyl for a while
[22:53] <jcoxon> only*
[22:59] <edmoore> chmoding the directory is much better than letting the whole thing run under sudo
[22:59] <edmoore> stupid ed
[23:01] <jcoxon> yup
[23:01] <jcoxon> about the chmdo
[23:01] <jcoxon> chmod
[23:01] <jcoxon> rather then ed
[23:02] <jcoxon> urgh, sparkfun have run out of GM862 modules
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[23:08] <edmoore> I'm not following you jcoxon
[23:09] <akawaka> http://www.gm862.com/en/products/where-to-buy.php
[23:09] <akawaka> wow, what a cool little module
[23:09] <edmoore> yeah, we're coding for one right now. great things
[23:09] <edmoore> bit expensive though
[23:10] <akawaka> can run python? what kind of proc is in there? any io besides the serial port?
[23:11] <jcoxon> akawaka, thats what i've been using for my firefly payloads
[23:11] <jcoxon> ummm, the GM862 without GPS has 2 serial, 10 GPIOs, software i2c and spi
[23:12] <akawaka> wow
[23:12] <akawaka> nice
[23:13] <jcoxon> its quite cool
[23:13] <jcoxon> the one with GPS is SIRF III so has a 24km alt limit
[23:15] <akawaka> yeah, we're looking for unlimited gps modules right now
[23:17] <jcoxon> edmoore, do radiometrix take single orders for their radio modules?
[23:18] <edmoore> yep
[23:19] <jcoxon> do you have to email them?
[23:21] <jcoxon> oh i can get them from farnell
[23:27] <jcoxon> night all
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[23:54] <RocketBoy> night all
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[00:00] --- Thu Mar 6 2008