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SiRF message #4 includes signal strength and GPS engine state for each
of the satellites being tracked. This data is now parsed and sent to
eeprom and the radio.
Signed-off-by: Keith Packard <keithp@keithp.com>
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This tracks whether the GPS receiver has ever sent a valid report to the
flight computer, allowing the user to tell whether the GPS receiver is
working at all.
Signed-off-by: Keith Packard <keithp@keithp.com>
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Assume GPS is either in 4800 NMEA or 57600 SiRF mode, send just the sequence
to get from 4800 NMEA to 5760 SiRF.
Also, eliminate threads from the gps test program.
Signed-off-by: Keith Packard <keithp@keithp.com>
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Having switched to the SiRF binary GPS format, the velocity and error data
can now be displayed.
Signed-off-by: Keith Packard <keithp@keithp.com>
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This switches the GPS unit from NMEA to SiRF protocol at startup and then
parses the binary data. The binary data uses a different encoding of lat/lon
than the NMEA strings, and so the telemetry and eeprom data formats change
with this switch.
Signed-off-by: Keith Packard <keithp@keithp.com>
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None of our boards have a 32kHz xtal oscillator, instead we use those pins
(on Telemetrum) for the deployment firing circuits. The old clock
initialization code was switching from the 32kHz RC oscillator to the 32kHz
crystal and overriding our use of those pins.
Signed-off-by: Keith Packard <keithp@keithp.com>
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Signed-off-by: Keith Packard <keithp@keithp.com>
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