Novatel OM-20000041 用户手册
2
Command Descriptions
MiLLennium GPSCard Software Version 4.50 Command Descriptions Manual Rev 1
27
Table 2-1
Commands By Function Table (continued)
Table 2-2
GPSCard Command Summary
DIFFERENTIAL REMOTE STATION
Commands
Descriptions
ACCEPT
Accepts RTCM1, RTCA or RTCAB differential inputs
$ALMA
Input almanac data
DGPSTIMEOUT
Set maximum age of differential data accepted
RESET
Performs a hardware reset
$RTCA
RTCA differential correction input (ASCII)
$RTCM
RTCM differential correction input (ASCII)
RTCMRULE
Selects RTCM bit rule
SETDGPSID
Select differential reference station ID to receive
CLOCK INFORMATION, STATUS, AND TIME
Commands
Descriptions
CLOCKADJUST
Enable clock modelling & 1PPS adjust
DIFF_PROTOCOL
1
Differential protocol control
EXTERNALCLOCK
Sets default parameters of an optional external oscillator
EXTERNALCLOCK FREQUENCY
Sets clock rate
SETTIMESYNC
1
Enable or disable time synchronization
$UTCA
Download UTC data
1
Intended for advanced users of GPS only
Command
Description
Syntax
$ALMA
Injects almanac
(follows NovAtel ASCII log format)
$IONA
Injects ionospheric refraction corrections
(follows NovAtel ASCII log format)
$PVAA
Injects latest computed position, velocity and acceleration
(follows NovAtel ASCII log format)
$REPA
Injects raw GPS ephemeris data
(follows NovAtel ASCII log format)
$RTCA
Injects RTCA format DGPS corrections in ASCII (Type 1)
(follows NovAtel ASCII log format)
$RTCM
Injects RTCM format differential corrections in ASCII (Type 1)
(follows NovAtel ASCII log format)
$TM1A
Injects receiver time of 1 PPS
(follows NovAtel ASCII log format)
$UTCA
Injects UTC information
(follows NovAtel ASCII log format)
ACCEPT
Port input control (set command interpreter)
accept port,option
ANTENNAPOWER
Power to the low-noise amplifier of an active antenna
antennapower flag
ASSIGN
Assign a prn to a channel #
assign channel,prn,doppler, search window
UNASSIGN
Un-assign a channel
unassign channel
UNASSIGNALL
Un-assign all channels
unassignall
CLOCKADJUST
Disable clock steering mechanism
clockadjust switch
COMn
Initialize Serial Port (1 or 2)
comn bps,parity,databits,stopbits, handshake,echo
COMn_DTR
Programmable DTR lead/tail time
comn_dtr control,active,lead,tail
COMn_RTS
Programmable RTS lead/tail time
comn_rts control,active,lead,tail
CONFIG
Switches the channel configuration of the GPSCard
config cfgtype
CRESET
Configuration reset to factory default
creset
CSMOOTH
Sets carrier smoothing
csmooth value
DATUM
Choose a DATUM name type
datum option
USERDATUM
User defined DATUM
userdatum semi-major,flattening,dx,dy,dz, rx,ry,rz,
scale
scale
DGPSTIMEOUT
Sets maximum age of differential data to be accepted and ephemeris
delay
delay
dgpstimeout value value