USB3.0 Board Level Camera
·
User Manual
28
If the 1
st frame image’s exposure time of the 2nd
trigger signal
is earlier than the camera’s last
frame creation time of the 1st trigger signal, and then the camera will delay this exposure time.
Thus making sure this exposure time is not earlier than the camera
’s last frame creation time of
the 1st trigger signal.
Figure 8-20
Second Triger Signal Delayed
The three sequence diagrams above uses rising edge as trigger activation.
8.6.5 Set Trigger Debouncer
The external trigger input signal of the camera may have signal bounce that may cause false trigger.
Thus, it is necessary to debounce the external trigger signal, and its sequence diagram is shown
below.
The sequence diagram below uses rising edge as trigger activation.
Before Debounce
After Debounce
Trigger_in1
Trigger_in2
Trigger_in3
Trigger_in2
Trigger_in3
Debouncer Time
Debouncer Time
Debouncer Time
Figure 8-21
Trigger Debouncer Sequence Diagram
Summary of Contents for USB3.0
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