M300 Pro GNSS Receiver User Guide
33
MARKCONTROL
to control the event functions.
Format
MARKCONTROL signal switch [polarity] [timebias [timeguard]]
Description
At present,
Signal
only supports
mark1, and Switch
supports
ENABLE
and
DISABLE.
Polarity
supports
POSITIVE (
positive pulse triggering) and
NEGATIVE
(negative pulse
triggering). Timebias and timeguard are not available currently.
Example
markcontrol mark1 enable negative 0 0
After configuration, you can save and check settings via command
saveconfig
and
logsysconfig
.
Output Messages
Markpos
and
marktime
provide the position and accurate time of the event
moment.The two messages support binary and ASCII formats, so the messages
provide formats
markposa
,
markposb
,
marktimea
and
marktimeb
.
Examples
logcom1 markposaonnew
logcom1 marktimeaonnew
Once you triggered the Event signal connector,it will output the event information
from the serial port(com1).The event information(marktime&markpos) will record to
the raw data once it be triggered if you enabled the event function.
5.2.2 PPS output
The M300pro receiver supports the PPS output. Use the command
PPSCONTROL
to
configure the PPS output.
Format
PPSCONTROL
<switch><polarity><period><pulse-width>
Description
This command can be used to set the polarity, period and pulse-width of PPS output.
Parameters
<switch>
: switch ‘enable’ or ‘disable’, the switch should be set to ‘enable’, and
‘disable’ is not allowed.
<polarity>
: Select ‘positive’ if with a high level pulse, and ‘negative’ mode if a low
level pulse.
<period>
: fixed to 1 second
<pulse-width>
: in microseconds, should be less than half of period.
