User`s manual

PC2-CamLink User's Manual Part I: PC2-CamLink Board • 57
Start/End of Line
For linescan cameras, the Start of Line interrupt represents the beginning of a valid line output by the
camera. It is asserted on the LVAL pulse (at the beginning of the line). This is represented by
CL2_INTR_HB in IFC.
Sapera offers the End of line interrupt through the
CORACQ_VAL_EVENT_TYPE_END_OF_NLINES event with N=1.
Warning: Start/End of Line interrupts occur at a very high rate. This may saturate your CPU and
prevent proper functioning of your OS. Make certain that your CPU is powerful enough to handle the
high interrupt rate generated by your area scan or linescan camera.
Note: For reasons of performance, each Start of Capture interrupt is only enabled if a user function has
been registered to process them.
End of Capture
The End of Capture interrupt family is asserted when capture is complete and data transferred to
onboard FIFO memory.
End of Frame
An End of Frame interrupt is generated when the last pixel from the image has been acquired and
transferred to onboard FIFO memory. It is also generated for virtual frames. This is represented by
CL2_INTR_EOFRM in IFC. In Sapera, this is represented by
CORXFER_VAL_EVENT_TYPE_END_OF_FRAME.
End of N Lines
For linescan cameras, the End of N Lines interrupt is generated when the last pixel from the Nth line
has been acquired and transferred to onboard FIFO memory. This is represented by
CL2_INTR_END_OF_NLINES in IFC. In Sapera, this is represented by
CORXFER_VAL_EVENT_TYPE_END_OF_NLINES.