SE867-AGPS User Guide
1VV0300860 Rev. 3 - 2010-05-10
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved
page 34 of 69
Bitmask
Description
0x001
Erase position from NVRAM, FSH and RAM
0x002
Erase accurate time, leave inaccurate time
0x004
Erase RTC time
0x008
Erase TCXO offset and drift values from NVRAM, FSH and RAM
0x010
Erase UTC parameters from FSH and RAM
0x020
Erase ionospheric correction parameters from FSH and RAM
0x040
Erase all almanacs from FSH and RAM
0x080
Erase NVRAM
0x100
Reset configurations from FSH and RAM (Output, Zone, Debug, Datum, VSDSP, pinning)
0x200
Erase all ephemerides from FSH and RAM
0x400
Erase all prehistory information collected so far in FSH and RAM
0x8000
Erase SV configurations
ics to be used with the START command.
:
NV
as
i
particular bitmask.
There is a number of predefined mnemon
When alias is used the command has the following form
$PU
,START,
alias
*cc
ali
s a mnemonic specifying the
Alias
Bitmask
Description
FACTORY
0xFF7F
Start-up with no prior information and reset configuration (FSH and RAM)
to compiled–in factory defaults
ALL
0x7E7F
Same as COLD, but also erase TCXO offset and drift values
COLD
0x7E77
Retain TCXO and configurations
LGFCOLD
0x7E76
Same as COLD, but retain a position
WARM
0x0202
Retain TCXO, position, RTC time and configurations
NOTIME
0x0006
Erase time, retain everything else
MEDIUM
0x0002
Erase time, but leave RTC
HOT
0x0000
Do not erase anything
AUTO
0x0000
Do not erase anything
START command in its simplest form is also supported:
$PUNV,START*71
,which just restarts navigation without erasing anything. So effectively it is equal to
$PUNV,START,HOT*0E
and