X64 Xcelera-HS PX8 User's Manual
CamExpert Quick Start
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Teledyne DALSA continually updates a camera application library composed of application
information and prepared camera files, ready to download. Camera files are ASCII text and can be
read with Windows Notepad on any computer without having Sapera installed.
Overview of Sapera Acquisition Parameter Files (*.ccf or *.cca/*.cvi)
Concepts and Differences between the Parameter Files
There are two components to the legacy Sapera acquisition parameter file set: CCA files (also
called cam-files) and CVI files (also called VIC files, i.e. video input conditioning). Sapera LT 5.0
introduces a new camera configuration file (CCF) that combines the CCA and CVI files into one file.
Typically, a camera application will use a CCF file per camera operating mode. An application can
also have multiple CCF files so as to support different image format modes supported by the
camera or sensor (such as image binning or variable ROI).
CCF File Details
Files using the “.CCF” extension, (Camera Configuration files), are essentially the camera (CCA)
and frame grabber (CVI) parameters grouped into one file for easier configuration file
management. This is the default Camera Configuration file used with Sapera LT 5.0 and the
CamExpert utility.
CCA File Details
Teledyne DALSA distributes camera files using the legacy “.CCA” extension, (CAMERA files), which
contain all parameters describing the camera video signal characteristics and operation modes
(what the camera outputs). The Sapera parameter groups within the file are:
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Video format and pixel definition
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Video resolution (pixel rate, pixels per line, lines per frame)
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Synchronization source and timing
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Channels/Taps configuration
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Supported camera modes and related parameters
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External signal assignment
CVI File Details
Legacy files using the “.CVI” extension contain all operating parameters related to the frame
grabber board – what the frame grabber can actually do with camera controls or incoming video.
The Sapera parameter groups within the file are:
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Activate and set any supported camera control mode or control variable.
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Define the integration mode and duration.
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Define the strobe output control.
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Allocate the frame grabber transfer ROI, the host video buffer size and buffer type
(RGB888, RGB101010, MONO8, MONO16).
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Configuration of line/frame trigger parameters such as source (internal via the frame
grabber /external via some outside event), electrical format (TTL, RS-422, OPTO-isolated),
and signal active edge or level characterization.
