Multiple Exposure Preset Trigger (Mode 4) - Point Grey Flea3 GigE Technical Reference

Point Grey Flea3 GigE Technical Reference
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).
Revised 10/29/2013
Copyright ©2010-2013 Point Grey Research Inc.
Figure 7.4: Trigger Mode 4 ("Multiple Exposure Preset Mode")
Registers—TRIGGER_MODE: 830h
Presence [0]
ON [6]
Polarity [7]
Source [8-10]
Value [11]
Mode [12-15]
Parameter [20-31]
1
1
Low/High
GPIO Pin
Low/High
Trigger_Mode_4
N ≥ 1
7 Image Acquisition
44