highaltitude.log.20081110

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[01:12] <SpeedEvil> laurenceb: a very productive though boring effort can be to read all the way through your processors opcode manual and datasheet, with the aim 'how can I pervert this to my goal'. An instruction will very rarely be denoted 'correlate GPS' - you have to look at every instruction/timing and capability in that light. Can you use a sync serial port, DMA, PWM, ... for your aim, programmed in odd ways.
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[06:45] <Laurenceb> hi all
[06:46] <natrium42> word
[06:47] Action: Laurenceb owns
[06:48] <Laurenceb> http://imagebin.org/30796
[06:48] <Laurenceb> hows that for awsomeness
[06:50] Action: Laurenceb dances about madly
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[07:38] <Laurenceb> http://imagebin.org/30800
[07:40] <SpeedEvil> Laurenceb: a very productive though boring effort can be to read all the way through your processors opcode manual and datasheet, with the aim 'how can I pervert this to my goal'. An instructionwill very rarely be denoted 'correlate GPS' - you have to look at
[07:40] <SpeedEvil> every instruction/timing and capability in that light. Can you use a sync serial port, DMA, PWM, ... for your aim, programmed in odd ways.
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[07:41] <Laurenceb> yeah
[07:41] <Laurenceb> I've very impressed
[07:41] <Laurenceb> thats just from my windowsill
[07:41] <Laurenceb> hi edmoore
[07:41] <SpeedEvil> :)
[07:42] <Laurenceb> edmoore: http://imagebin.org/30800
[07:42] <Laurenceb> 80 is zero doppler, 160 and 0 are +-10KHz
[07:42] <edmoore> other axis?
[07:43] <Laurenceb> PRN phase
[07:43] <Laurenceb> ADC was sampling at 8MHz
[07:43] <SpeedEvil> xephem can be told to give you gps velocities
[07:44] <Laurenceb> whats zephem?
[07:44] <Laurenceb> sat ephereris app?
[07:45] <Laurenceb> http://pastebin.com/m6ad33457
[07:46] <SpeedEvil> linux satellite view thingy
[07:46] <Laurenceb> cool
[07:46] <SpeedEvil> http://www.clearskyinstitute.com/xephem/
[07:47] <Laurenceb> it probably easier to just get data off a server then do some trig
[07:48] <SpeedEvil> possibly. It's just that xephem can give you a nice tabular list of satelite vehicle/doppler at a given time and position
[07:49] <SpeedEvil> I was using it when I was trying to develop GPS software for OM.
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[16:20] <natrium42> rjharrison
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[16:39] <natrium42> hi jcoxon
[16:56] <jcoxon> hey natrium42
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[17:48] <natrium42> jcoxon, what's new?
[17:50] <jcoxon> not much really
[17:50] <jcoxon> started my paeds rotation this morning
[17:52] <jcoxon> also starting to prepare for my exams in december
[17:52] <jcoxon> how about you?
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[18:10] <Laurenceb> http://imagebin.org/30833
[18:26] <akawaka> hello
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[18:34] <natrium> hi
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[20:46] <Laurenceb> hello
[20:47] Action: Laurenceb wishes it would stop raining for once
[21:02] Action: SpeedEvil passes Laurenceb an umbrella
[21:02] <SpeedEvil> Why?
[21:03] <Laurenceb> I need to get some food
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[21:04] <Laurenceb> I've got the acquisition code running a lot faster
[21:04] <Laurenceb> http://pastebin.com/m25411fdd
[21:04] <Laurenceb> it can find all sats in 20 seconds
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[22:10] <natrium42> phoenix is dead :(
[22:14] <akawaka> it had a good run
[22:14] <akawaka> still a chance it will wake again
[22:28] <gordonjcp> phoenix?
[22:30] <gordonjcp> ah
[22:32] <SpeedEvil> I know!
[22:33] Action: SpeedEvil passes out a lot of laser-pointers, and a booklet entitled 'How to find mars in the night sky'.
[22:34] <natrium42> well, i would be happy if most people could find africa
[22:34] <natrium42> on the map
[22:46] Action: SpeedEvil points vaguely to mexico.
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[23:40] <SpeedEvil> http://www.youtube.com/watch?v=IliwQImJrYE
[23:40] <SpeedEvil> (not-related)
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[00:00] --- Tue Nov 11 2008