AT Command Manual for Sierra MC87XX Module
Table Of Contents
- 1: About This Guide
- 2: AT Password Commands
- 3: Modem Status, Customization, and Reset Commands
- 4: Diagnostic Commands
- 5: Test Commands
- 6: Memory Management Commands
- 7: Voice Commands
- 8: GPS Commands
- 9: STK Commands
- Appendix A: Test Frequencies / Channel Lists
- Appendix B: HSDPA / HSUPA Categories
- Appendix C: ASCII Table
- Appendix D: Module Customization
MC87xx Extended AT Command Reference
118 2130616
!GPSCLRASSIST?
!GPSCLRASSIST=?
!GPSCLRASSIST=<eph>,
<alm>, <pos>, <time>,
<iono>
Supporting Mini Cards:
• MC8780 / 81 (minimum
FW rev: F1_1_0_3ap)
• MC8785V
• MC8790 / 90V
• MC8791V
• MC8792V
Clear specific GPS assistance data
This command clears 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:
• AT!GPSCLRASSIST=? returns the expected command format and
supported values.
• AT!GPSCLRASSIST=<eph>, <alm>, <pos>, <time>, <iono> clears
each assistance data type that is flagged as ‘1’.
Parameters:
<eph> (Ephemeris assistance data):
• 0 = Ignore (do not clear the assistance data)
• 1 = Clear this assistance data type
<alm> (Almanac assistance data):
• 0 = Ignore (do not clear the assistance data)
• 1 = Clear this assistance data type
<pos> (Position assistance data):
• 0 = Ignore (do not clear the 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 assistance data)
• 1 = Clear this assistance data type
!GPSCOLDSTART
Supporting Mini Cards:
• MC8780 / 81 (minimum
FW rev: F1_0_1_4ap)
• MC8785V
• MC8790 / 90V
• MC8791V
• MC8792V
Clear all GPS assistance data
This command clears GPS assistance details from the modem and puts
the modem into a coldstart state. Data cleared includes Almanac,
Ephemeris, Previous Position, Ionosphere, and GPS time. 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 !GPSCLRASSIST when all four of that
command’s parameters are set to ‘1’.
Usage:
• AT!GPSCOLDSTART clears the modem’s GPS details
Table 8-2: GPS command details (Continued)
Command Description