Point Grey Flea3 GigE - Video Modes Explained

Point Grey Flea3 GigE Technical Reference 7 Image Acquisition
7.1.5 Multiple Exposure Preset Trigger (Mode 4)
Trigger Mode 4 allows the user to set the number of triggered images to be exposed before the image readout starts. In
the case of Trigger Mode 4, the shutter time is controlled by the Shutter value; the minimum resolution of the duration
is therefore limited by the shutter resolution.
In the figure below, the camera starts integration of incoming light from the first external trigger input falling edge and
exposes incoming light at shutter time. Repeat this sequence for N (parameter) external trigger inputs edge then finish
integration. Parameter is required and shall be one or more (N >= 1).
Figure 7.4: Trigger Mode 4 (“Multiple Exposure Preset Mode”)
Registers—TRIGGER_MODE: 830h
Presence [0] 1
ON [6] 1
Polarity [7] Low/High
Source [8-10] GPIOPin
Value [11] Low/High
Mode [12-15] Trigger_Mode_4
Parameter [20-31] N ≥ 1
Revised 10/29/2013
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