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# FALCON/EAGLE user manual 4.62

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Trigger input | Scroll Previous Top Next More

EAGLE has a synchronous trigger input to control image acquisition dependent on external events. The trigger input is TTL controlled and the flank (high-low, low-high), which causes a trigger event, can be chosen by function is_SetExternalTrigger(). The trigger pulse width must at least amount to 20 ms.

Pre-trigger mode

•is_CaptureVideo()

•is_SetExternalTrigger()

•is_StopLiveVideo()

Fig. 40: Pre-trigger mode

Post-trigger mode (snap shot))

•is_SetExternalTrigger()

•is_FreezeVideo()

Fig. 41: Post-trigger mode

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