clean up talks directory, create an index pointing to 2010 slides and 2008

[web/altusmetrum] / talks / kslides

diff --git a/talks/kslides b/talks/kslides
deleted file mode 100644 (file)
index 1ac5ed7..0000000
--- a/talks/kslides
+++ /dev/null
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-TeleMetrum Low-level Access
-       CC1111 4-wire debug interface:
-               debug data, debug clock, reset, ground
-       CP2103 -- 4 GPIOs controlled from USB
-               One USB packet per half clock
-       Beagle USB hardware monitor
-       CC1111-based debug link
-               emulates serial on USB
-               provides high-level commands
-
-TeleMetrum Software Development Environment
-       Small Device C Compiler, targeting 8051 CPU
-       Source Debugger for SDCC
-       Hex debugger using either CP2103 or CC1111 link
-               Emulates mcs51 emulator
-               Except talks to real hardware
-               Hooks up to sdcdb
-
-AltOS architecture
-       Multi-threaded
-               Avoids the 'one big loop'
-       Non pre-emptive
-               Limits where pre-emption can occur
-       sleep/wakeup rendezvous
-               Good enough for Linux
-       Timers, mutexes
-               Basic OS services
-
-Flight software architecture
-       Flight progress tracked through discrete states
-               Pad - Sitting vertically
-               Boost
-                       Acceleration > 2g and Speed > 5m/s
-                       or
-                       Height > +20m
-               Fast
-                       Acceleration < -1/4g
-                       or
-                       Boost period > 15s
-               Coast
-                       Speed < 200m/s
-                       or
-                       Height < Max_height - 500m
-               Apogee
-                       Height < Max Height - 10m
-               Main
-                       Height < Main Height
-               Land
-                       Acceleration stable for 5 seconds
-                       Height stable for 5 seconds
-                       Height < Launch height + 1000m
-       
-Calibration
-       Radio calibrated by adjusting PLL against freq counter
-               48MHz crystal good to 20ppm
-               20ppm at 434MHz is 9Khz
-       Accelerometer calibrated by rotating board on bench
-               Accelerometer output runs through 5V->3.3V divider
-               Uses 1% resistors
-               Also automatically adjusts for 100G/50G/40G devices
-
-GPS adventures
-       Problem: GPS looses satellites during boost phase
-       GPS receivers track sats by synthesizing expected signal
-               frequency based on relative velociy
-               phase based on distance
-       Change in actual signal means changing synthetic signal
-               High acceleration means allowing faster changes
-       Change rate limited by 'loop filter' bandwidth.
-
-Drag race plots
-
-Standard flight plot set
-
-Plot from VA flight 2009-04-19
-Plot from LDDD flight 2009-05-??
-Overview Data for nike flight
-
-google earth plot for ToT from Hudson