Download GNSS Receiver External Interface Specification

RECEIVER OBJECTS
Ob jec ts Re fe re nc e
Generic Communication Parameters
Basic Operation Modes
Input Mode
Name:
Access:
Values:
Default:
/par/[port]/imode
rw
cmd,echo,jps,rtcm,rtcm3,cmr,omni,none,dtp,term
cmd
With this parameter the user specifies what type of incoming data to accept on the
selected receiver port.
cmd – command mode. Being in this mode, the receiver's port recognizes GREIS
commands sent by the user.
echo – echo mode. This mode is the same as cmd mode unless /par/[port]/echo is set
to a value different from /dev/null, see /par/[port]/echo parameter description
below for details.
jps – GREIS input mode. In this mode receiver is capable to recognize both standard and non-standard GREIS messages.
rtcm – RTCM 2.x input mode.
rtcm3 – RTCM 3.x input mode. In this mode the receiver recognizes and decodes
the RTCM 3.x messages received through the corresponding port.
cmr – CMR/CMR+ input mode. For more information on CMR format, please refer
to ftp://ftp.trimble.com/pub/survey/cmr.
omni – unsupported.
none – means that the port will ignore any incoming data.
dtp – the port is currently attached to the Data Transfer Protocol (DTP), so all the
input goes there. This mode could be set only by the get GREIS command. The
mode will return to cmd as soon as DTP terminates.
term – the PPP data link is currently established over this port, so all the input goes
there. This mode could be set only implicitly by the PPP stack. When parameter is
implicitly set to this mode, attempts to change the mode will fail.
Output Mode
Name:
/par/[port]/omode
Access: r
Values: std,dtp,term
Default: std
std – standard output mode.
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GREIS