Specifications

GPS Commands
Rev. 8 May.12 Proprietary and Confidential 183
!GPSCLRASSIST
Supporting chipsets (GPS-
enabled devices only):
• MDM6200
• MDM8200A
• MDM8220
• MDM9200
• MDM9600
• MSM6290
• QSC6270 (min f/w rev: S2.0)
Clear specific GPS assistance data
Clear one or more types of assistance data from the modem. This forces a cold start
for GPS acquisition the next time a session starts.
The command is only available when there is no active GPS session—the GPS
receiver is off and no position fix is being calculated.
This command is equivalent to !GPSCOLDSTART when all four parameters are set
to ‘1’.
Usage:
• Execution: AT!GPSCLRASSIST=<eph>, <alm>, <pos>, <time>, <iono>
Response:
OK
or Command ignored
OK
Purpose: Clear each assistance data type that is flagged as ‘1’.
• Query List: AT!GPSCLRASSIST=?
Purpose: Return the expected command format and supported values.
Parameters:
<eph> (Ephemeris assistance data)
• 0=Ignore (Do not clear the ephemeris assistance data)
• 1=Clear this assistance data type
Note: MDM9200 (min fw rev: SWI9200X_3.0 Release 2,
SWI9200X_3.5-Beta3)—Clears GPS, GLONASS, and SBAS ephemeris
assistance data.
<alm> (Almanac assistance data)
• 0=Ignore (Do not clear the almanac assistance data)
• 1=Clear this assistance data type
Note: MDM9200 (min fw rev: SWI9200X_3.0 Release 2,
SWI9200X_3.5-Beta3)—Clears GPS, GLONASS, and SBAS almanac assis-
tance data.
<pos> (Position assistance data)
• 0=Ignore (Do not clear the position assistance data)
• 1=Clear this assistance data type
<time> (Time reference)
• 0=Ignore (Do not clear the time reference)
• 1=Clear the time reference
<iono> (Ionosphere assistance data)
• 0=Ignore (Do not clear the ionosphere assistance data)
• 1=Clear this assistance data type
Table 9-2: GPS command details (Continued)
Command Description