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This wakes up the two GPS reporting tasks and gets them to report out
any existing GPS data to the log file. To make sure the timestamps in
that GPS data are accurate, this also records GPS time on receipt of
the GPS data instead of when that is logged.
Signed-off-by: Keith Packard <keithp@keithp.com>
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This allows you to override the flight mode detection code in case the
accelerometer calibration is broken somehow. Hold the SPI clock shoted
to ground until the LED comes on, then remove it.
Signed-off-by: Keith Packard <keithp@keithp.com>
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Detecting that the rocket has landed is required for the system to
flush the eeprom log and re-enable the RDF beacon. This patch changes
the landed state entry requirements for the accelerometer to require
only that the accelerometer stay within a quarter of a g (down from
1/10g) and changes the testing interval from 20 seconds to 5
seconds.
The requirement that the barometric altitude be within 1000m of the
launch altitude and that the barometer change by no more than 0.05kPa
are unchanged.
Signed-off-by: Keith Packard <keithp@keithp.com>
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Calibration now uses two values, one upside right and the other upside
down instead of a single horizontal value. This allows the use of
other accelerometers and compensates for variations in the divider
circuit to provide more accurate data.
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This splits the packet code into master/slave halves and hooks the
slave side up to the getchar/putchar/flush logic in ao_stdio.c
Signed-off-by: Keith Packard <keithp@keithp.com>
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__reentrant causes the compiler to place args and locals on the stack
instead of in the data segment.
Signed-off-by: Keith Packard <keithp@keithp.com>
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It's pretty much impossible to RDF the rocket during flight, and it
interferes with the telemetry data stream. Leave it enabled on the pad
so that radios can be tested, and then re-enable it once the rocket
has landed.
This patch also turns the rdf 'on' time into a parameter so it can be
changed, and then sets that parameter to 500ms, once every 5 seconds.
Signed-off-by: Keith Packard <keithp@keithp.com>
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Tracking the rocket on the ground may be easier using tones than using
the digital data stream, so we'll try that and see what we think.
This reverts commit 3a3bfd471a868d546d83cdc431b53c8f5208edb9.
Signed-off-by: Keith Packard <keithp@keithp.com>
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Signed-off-by: Keith Packard <keithp@keithp.com>
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