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Using the FirstGPS API
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FirstGPS Starter Kit User Guide
1.7.2
navGetChStatus
Get satellite tracking status.
Description
This function provides information (azimuth, elevation, AMU, and
so on) of the satellites currently being tracked from the navigation
platform. The data structure, npAllChStatusType, has two fields:
GPS time and an array of npChStatusType[N_CHANNELS], with
each entry corresponding to a channel. The data type,
npChStatusType contains all the tracking information for a channel.
Included Header File
#include “npStdIface.h”
Format
npRetCode navGetChStatus (npAllChStatusType*
ptAllChStatus);
Output Parameter
Return Values
Data Type Parameter Description
npAllChStatusType* ptAllChStatus A pointer to an application structure which
will be updated by the navigation platform.
For descriptions of each sub-field, refer to
npAllChStatusType, page 39 and
npChStatusType, page 39.
Value Description
NAV_OK The tracking information is retrieved
successfully.
NAV_ERROR The tracking information is not retrieved
successfully.