6M3P Camera User’s Manual
29
DALSA
03-32-10005-02
Programmed Integration/Serial Trigger
For external serial controlled triggering with a programmed integration time, a TTL rising
edge on bit [7] of serial register 3 triggers the camera to acquire one frame of data.
Integration begins within 200ns after the rising edge and stops when the programmed
integration time has completed. After that single frame acquisition, the camera outputs
the just acquired frame and “re-arms”, thus waiting for a new External Trigger signal to
trigger a new frame acquisition. The camera is “armed” when the read out of the
acquired frame is completed. No additional rising edges, or triggers, should be allowed during
the image acquisition or frame read out.
When the camera is in External Trigger Mode, the Frame LED will be illuminated on the
camera back to indicate the camera is expecting a signal on the SMA connector or serial
bit [7].
Because this signal is internally OR’ed with the TRIGGER IN Sync input, care must be
taken to ensure the TRIGGER IN signal is equal to a logic 0 while in Serial Trigger mode.
External Integration/SMA Trigger
When in External Integrate/SMA mode, a TTL rising edge on the TRIGGER IN (or
SYNC) signal triggers the camera to acquire one frame of data. Integration begins within
200ns after the rising edge and stops within 550 ns after the falling edge. After that single
frame acquisition, the camera outputs the just acquired frame and “re-arms”, thus
waiting for a new External Trigger signal to trigger a new frame acquisition. The camera
is “armed” when the read out of the acquired frame is completed. No additional rising
edges, or triggers, should be allowed during the image acquisition or frame read out. This means
in this mode TRIGGER IN necessarily controls both integration and frame rate.
When the camera is in External Trigger Mode, the Frame LED will be illuminated on the
camera back to indicate the camera is expecting a signal on the SMA connector or serial
bit [7].
Because this signal is internally OR’ed with the Serial Trigger input, care must be taken to
ensure the serial bit [7] of register 3 is equal to a logic 0 while in SMA Trigger mode.
External Integration/Serial Trigger
When in External Integration/Serial mode, a TTL rising edge on serial bit [7] of register 3
triggers the camera to acquire one frame of data. Due to variation in the host operating
system, this mode is generally used only for camera setup and functional testing.
Integration begins within 200ns after the rising edge and stops within 550 ns after the
falling edge. After that single frame acquisition, the camera outputs the just acquired
frame and “re-arms”, thus waiting for a new External Trigger signal to trigger a new
frame acquisition. The camera is “armed” when the read out of the acquired frame is
completed. No additional rising edges, or triggers, should be allowed during the image
acquisition or frame read out.
This means in this mode TRIGGER IN necessarily controls both integration and frame
rate.
When the camera is in External Trigger Mode, the Frame LED will be illuminated on the
camera back to indicate the camera is expecting a signal on the SMA connector or serial
bit [7].
