Dalsa PC2-CamLink, Руководство пользователя

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PC2-CamLink User's Manual Part I: PC2-CamLink Board
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55
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.
Acq.
Engine
FIFO
Memory
Trigger
Camera
Start of
Capture
End of
Capture
End of PCI transfer
PCI
Controller
Host
Memory
Figure 15: Acquisition Interrupts
IFC
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.