User`s manual

26 • Part I: PC2-CamLink Board PC2-CamLink User's Manual
The EXSYNC signal can be selected as an output on any of the four camera control lines on the
Camera Link™ connector.
Note: The EXSYNC pulse is always fired from the selected trigger event.
EXSYNC can be used as the exposure input to some area scan cameras. EXSYNC might also be used
as the line transfer input on some linescan cameras.
Sapera Parameters for EXSYNC:
Refer to Time Integration method in the Sapera Acquisition Parameters Reference
manual. EXSYNC is typically designated by pulse #1 in the various time integration
methods.
CORACQ_PRM_TIME_INTEGRATE_METHOD: Method to use for time integration
CORACQ_PRM_TIME_INTEGRATE_PULSE1_DELAY: Pulse offset from trigger
event
CORACQ_PRM_TIME_INTEGRATE_PULSE1_DURATION: Size of pulse
CORACQ_PRM_TIME_INTEGRATE_PULSE1_POLARITY =
{CORACQ_VAL_ACTIVE_LOW, CORACQ_VAL_ACTIVE_HIGH}
Note: Sapera also supports Camera Reset and Camera Trigger methods. Refer to the
Sapera Acquisition Parameters Reference manual for more information.
In CamExpert, these parameters are found under the ‘Advanced Control Parameters’
tab. Select one of the camera control methods (camera reset, camera trigger, or time
integration).
IFC
IFC Parameters for EXSYNC:
CL2_EXSYNC_ENABLE = {IFC_DISABLE, IFC_ENABLE}
CL2_EXSYNC_POLARITY = {IFC_ACTIVE_LOW, IFC_ACTIVE_HIGH}
CL2_EXT_SYNC_OFFSET_TIME: Pulse offset from trigger event
CL2_EXT_SYNC_ACTIVE_TIME: Size of pulse
CL2_ COMBINE_EXSYNC_PRI = {IFC_DISABLE, IFC_ENABLE}
PRIN
The PRIN output signal is used by some cameras to control the integration time. PRIN is a
programmable pulse generator: the delay from the trigger and the pulse duration are programmable
from 1µs to 65seconds. The polarity of the PRIN output is programmable.