CMV
-
50 Operations Manual
Copyright illunis, LLC 9/20/2019
Page 54
Strobe Signal
Target
Index
Description
Read
Write
Modes
0x00
0x03
Readout Mode
R/W
0 = Free Run
1 = Trigger Program Exposure
2 = Trigger Manual Exposure
Serial Commands
CMV
-
50
The exposure type is either Free Run Mode or Trigger Mode.
In Free Run Mode, the camera outputs continuous images in a global shutter mode.
In Trigger Mode, the camera receives the trigger, erases the pixels, exposes the image,
and then reads it out.
Readout Control
Target
Index
Description
Read
Write
Modes
0x04
0x0e
Strobe Control
Write
0x0000 = negative strobe polarity
0x0001 = positive strobe polarity
The CMV
-
50 Strobe Signal is a 3.3V LVTTL signal that is active when
the sensor is triggered and exposing an image. The Strobe Signal is useful
for analyzing and optimizing imaging applications. The strobe can be used
to activate an illumination source. If used in this fashion, the Strobe
Signal cannot drive significant current and should be buffered.
Exposure Time
Target
Index
Description
Read
Write
Modes
0x00
0x01
Exposure ms
R/W
Exposure time in milliseconds,
max is 0xFFFF = 65.535 seconds
0x00
0x05
Exposure us
R/W
Exposure time in Microseconds,
max is 0xFFFF = 0.065 seconds
The exposure time is set in either milliseconds or microseconds. The resolution of the
exposure is in horizontal line times. Two commands are provided for calculating the
Free Run time from a specified time variable (milliseconds or microseconds).
The
closest available time is selected and set in the internal time variable.