Cheetah Python Cameras User Manual | CoaXPress (CXP) Interface
August 27, 2019
Page
65
of
86
Rev 1.0
Figure 39:
Color subsampling
Camera Triggering
Triggering Inputs
In the normal mode of operation, the camera is free running, which means the camera
continually reads out the sensor. If using a trigger to initiate readout, trigger mode enables
synchronizing the camera to a timing pulse.
The camera offers four input modes for external triggering: external, internal (pulse
generator), software, and CXP trigger. You must map the trigger input to a corresponding
camera input.
•
External
– the camera receives the trigger signal coming from the Hirose
connector on the back of the camera.
•
Internal
– the camera has a built-in programmable pulse generator (refer to
Pulse Generator section). In Internal triggering mode, the camera receives the
trigger signal from the internal pulse generator.
•
Software
– the camera expects a computer to send a command to the camera for
generating one short trigger pulse. You can trigger the camera by clicking the GUI
Software Trigger button or by sending the GenICam™ Trigger Software command.
The trigger exposure is internal register controlled. Pulse duration exposure is not
supported
•
CXP Trigger
–
the camera receives the trigger signal coming from a CXP frame
grabber through the DIN connector on the back of the camera.
Acquisition and Exposure Control
For each trigger input, set the trigger edge and de-bounce (de-glitch) time.
•
Triggering Edge
– select one of the following to activate triggering edge:
-
Rising
– uses the rising edge for triggering.
-
Falling
– uses the falling edge for triggering.
•
De-bounce
– de-bouncing trigger inputs prevents multiple triggering from ringing
triggering pulses. De-bounce provides eight choices of de-bounce intervals:
-
Off
– no de-bounce (default)