VN-200 User Manual
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5.12.2
SyncInEdge
The SyncInEdge register controls the type of edge the signal is set to trigger on. The factory default
state is to trigger on a rising edge.
Table 33 – SyncInEdge Mode
Value
Description
0
Trigger on rising edge
1
Trigger on falling edge
5.12.3
SyncInSkipFactor
The SyncInSkipFactor defines how many times trigger edges defined by SyncInEdge should occur prior to
triggering a SyncIn event. The action performed on a SyncIn event is determined by the SyncIn mode.
For example, if the SyncInSkipFactor was set to 4 and a 1 kHz signal was attached to the SyncIn pin, the
SyncIn event would only occur at 200 Hz.
5.12.4
SyncOutMode
The SyncOutMode register controls the behavior of the SyncOut pin. If this is set to ADC, the SyncOut
will start the pulse when the internal ADC loop starts. This mode is used to make a sensor the Master in
a multi-sensor network array. If this is set to IMU mode, the pulse will start when IMU measurements
become available. If this is set to INS mode, the pulse will start when INS measurements are made
available. Changes to this register take effect immediately.
Table 34 – SyncOutMode
Mode Value
Description
NONE
0
None
ADC
1
Trigger at start of ADC sampling
IMU
2
Trigger when IMU measurements are available
INS
3
Trigger when INS measurements are available
GPS
6
Trigger when GPS PPS pulse is present and GPS has a position fix.
5.12.5
SyncOutPolarity
The SyncOutPolarity register controls the polarity of the output pulse on the SyncOut pin. Changes to
this register take effect immediately.
Table 35 – SyncOutPolarity
Value
Description
0
Negative Pulse
1
Positive Pulse
5.12.6
SyncOutSkipFactor
The SyncOutSkipFactor defines how many times the sync out event should be skipped before actually
triggering the SyncOut pin.
