Triggering
223
Alvium CSI-2 Cameras User Guide V2.8.1
Figure 87: Triggering rolling shutter (RS) cameras
No Conditions
Results
1
Exposure time is shorter than readout time.
Trigger 1 starts exposure 1 with a delay
2
Exposure time is shorter than readout time, but
longer
than for exposure 1.
Trigger 2 starts exposure 2 with a delay
shorter
than for exposure 1.
3
Exposure time is longer than readout time
Trigger 3 starts exposure time without a delay.
Because the
exposure area
is longer, also the
readout area
is longer than for triggers 1 and 2
4
Exposure area
is ongoing.
Trigger 4 is ignored.
5
Readout area
is ongoing
Trigger 5 is ignored.
6
Readout area
is finished. Exposure time is
longer than readout time.
Trigger 6 starts exposure 6 without a delay
Table 114: Triggering conditions and results
TriggerSelector values for rolling shutter (RS) cameras
Cameras with rolling shutter (RS)
can
be triggered using
AcquistionStart
,
AcquisitionEnd
, or
FrameStart
for
TriggerSelector
.
Cameras with rolling shutter (RS)
cannot
be triggered using
ExposureStart
or
ExposureEnd
for
TriggerSelector
.
Frame rates in triggered mode
When rolling shutter cameras are operated in triggered mode, the values for
maximum frame rate reached in free run mode are cut in half.
External signal
1
2
3
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ZĞĂĚŽƵƚĐƟǀĞ
4
5
6
1
1
2
2
3
3
Readout area
Exposure area
Delay
П
Delay
П
Idle
Readout area
Exposure area
Readout area
Exposure area
П
Exposure start delay
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Sensor cycle state
GenICam
for CSI-2
Access
