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Using the FirstGPS API
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FirstGPS Starter Kit User Guide
1.4.13
npOscStatusType
npOscStatusType is a set of parameters describing the oscillator. The
parameters, ucHaveBias and ucHaveFreqOffset, are flags indicating
the current condition of the oscillator. For all the possible values, refer
to Oscillator Status Code, page 54.
1.4.14
npTempMeasType
npTempMeasType is a set of temperature measurement parameters.
Data Type Parameter Description
DBL dblBias Oscillator bias in meters.
DBL dblFreqOffset Oscillator frequency offset in
meters/second.
FLT fltBiasUnc Oscillator bias uncertainty in meters.
FLT fltFreqOffsetUnc Oscillator frequency offset uncertainty
in meters/second.
U8 ucHaveBias Status flag indicating validity of bias.
For all possible values, refer to
Oscillator Status Code, page 54.
U8 ucHaveFreqOffset Status flag indicating validity of drift.
For all possible values, refer to
Operating Dimension, page 53.
Data Type Variable Description
U8 ucMsecInterval The number of milliseconds over which
the temperature measurement was
made.
U32 ulMeasMsec The current GPS time when the
temperature measurement was made.
U32 ulMeasCount The measured TCO frequency (in
counts/ucMsecInterval). This value
varies with the temperature.