Sets ephemeris data on a SiRF receiver

Returns GPSERROR_NONE on success or GPSERROR_CONFIG on failure.

• SiRF receivers support external sources of ephemeris data to improve acquisition times.

• The ephemeris data for each satellite is stored as a two dimensional array of [3][15] UNIT16 elements. The 3 represents three separate sub-frames. The data is packed; the exact format of this representation and packing method can be extracted from the ICD-GPS-2000 document. The ICD-GPS- 2000 document describes the data format of each GPS navigation sub-frame and is available on the web at http://www.arinc.com/gps.

• The user is responsible for allocating and freeing the memory for the parameter(s).

SiRF Specific functions

GPSERROR GPSAPI SirfSetEphemeris(unsigned short usSvid, SIRF_PACKED_EPHEMERIS * pFrame);

sirfapi.h

SiRF Specific functions