Acquisition Interrupts - Dalsa PC2-CamLink User Manual

Acquisition Interrupts

The PC2-CamLink provides acquisition interrupts that allow an application to monitor the acquisition
status accurately. This is one of the many elements that frame the "trigger-to-image reliability" model
supported by PC2-CamLink and its Acquisition and Control Unit (ACU).
These interrupts are grouped into four families representing each acquisition stage:
•
Trigger Interrupt
•
Start of Capture
•
End of Capture
•
End of PCI Transfer
The following block diagram illustrates the acquisition process and indicates at which stage each
interrupt occurs.
Camera
IFC
PC2-CamLink User's Manual
Start of
Capture
Figure 15: Acquisition Interrupts
Under IFC, an interrupt event object is created using the IfxCreateInterrupt () global
scope function. This returns a pointer to a CInterrupt object that is used to manage
interrupts. Refer to the IFC-SDK Software manual for more information using CInterrupt
objects.
Trigger
End of
Acq.
Capture
Engine
End of PCI transfer
FIFO
Memory
PCI
Controller
Host
Memory
Part I: PC2-CamLink Board • 55