Data Translation DT3162, User Manual

Page: 37 / 80

Principles of Operation
27
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Strobe Output Signal
You can generate a strobe output pulse to control lighting for a
progressive scan camera. The strobe output pulse is provided on pin
12 of connector J2 on the DT3162 board. To access this signal, use the
STP15 screw terminal panel and EP337 cable.
Using software, you can enable the strobe output pulse and specify
the following settings for this signal:
• The strobe 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 strobe pulse.
The qualified acquisition trigger can be an internal 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 strobe stop 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 stops outputting the strobe pulse.
The qualified acquisition trigger can be an internal (software)
trigger if you are acquiring one frame only, or an external trigger
(external for each) if you are acquiring more than one frame.
Refer to
page 6 for more information on triggers.
• The strobe output polarity
−
Values are ActiveHigh or
ActiveLow. Selecting an active-high polarity means that the
strobe output pulse is a low-to-high going signal; selecting an
active-low polarity means that the strobe output pulse is a
high-to-low going signal.