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Theory of Operation
X64-AN Quad User's Manual
Two parameters control the frame reset pulse. First, the offset parameter sets the delay from trigger
before asserting frame reset. Then, the size parameter specifies the frame reset pulse duration, which in
turn, controls the exposure period on some cameras.
Single Pulse Frame Reset
Ext. Trigger
Frame Reset
FR
offset
FR
size
Figure 21: Single pulse frame reset timing
Sapera parameters for Frame Reset :
Refer to Time Integration method of Sapera documentation.
CORACQ_CAP_TIME_INTEGRATE_METHOD:
Method to use for time integration
CORACQ_PRM_TIME_INTEGRATE_PULSE0_DELAY:
Pulse offset from trigger event
CORACQ_PRM_TIME_INTEGRATE_PULSE0_DURATION:
Size of pulse
CORACQ_PRM_TIME_INTEGRATE_PULSE0_POLARITY =
{ CORACQ_VAL_ACTIVE_LOW, CORACQ_VAL_ACTIVE_HIGH}
VSYNC
One VS signal is output per active camera. This feature is used on some cameras to control the
exposure rate when in Master Mode. The VS can generate up to two pulses, each with a different
duration up to 65 seconds.
Two parameters control the VS pulse. First, the offset sets the delay from trigger before asserting VS.
Then, the duration sets the VS pulse width.
