Data Translation DT3162, User Manual

Page: 35 / 80

Principles of Operation
25
E
E
E
E
E
E
Expose/Reset Signal
The DT3162 board can generate an expose/reset output signal for
controlling asynchronous cameras. Asynchronous cameras are used
primarily in applications that monitor moving parts. The
expose/reset signal allows you to reset the asynchronous camera to
the beginning of a frame, which allows you to acquire an image as the
part is moving under the camera. You can access the expose/reset
signal, which is provided on pin 7 of connector J1 on the DT3162
board, using the EP332 cable or the CAMERA connector on the
Camera Interface Module.
Note: Sync output mode must be enabled to use the expose/reset
signal.
Using software, you can enable the expose/reset pulse and specify
the following settings for this signal:
• The expose/reset start line
−
Values range from 1 to 65535 lines,
in increments of 1. Setting this value determines the number of
lines between when the board receives the qualified acquisition
trigger and when it starts outputting the expose/reset pulse.
The qualified acquisition trigger can be an internal (software)
trigger if you are acquiring one frame only, or an external trigger
(ExternalForEach) if you are acquiring more than one frame.
Refer to
page 6 for more information on triggers.
• The expose/reset stop line
−
Values range from 2 to 65535 lines,
in increments of 1. Setting this value determines the number of
lines between when the board receives the qualified acquisition
trigger and when it stops outputting the expose/reset pulse.