Advantech PCIE-1144-AE handleiding
Handleiding
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The StreamSync Acquisition Engine World CoaXPress Frame Grabbers
CXP-2-4 BitFlow, Inc. Version C.1
until the trigger condition is met) or it can just be opened immediately, as soon the
Acquisition Engine level is inside the X window (i.e. the stat above). Table 2-1 enumer-
ates all of these conditions..
2.2.2 Observing the StreamSync Acquisition Engine
The state of the Acquisition Engine can be observed at any time. The register AE_
LEVEL indicates the current run level of the Acquisition Engine. In other words, this
register returns the current state as shown in Figure 2-2. While this is not very useful in
a free-running situation, as the value will be changing constantly, it can be very helpful
debugging if the system gets stuck (e.g. waiting for a trigger).
2.2.3 Synchronizing the StreamSync Acquisition Engine With a CXP Camera
Normally acquisition is synchronized with camera by special CXP header packets
called Start Of Frame (SOF) and Start Of Line (SOL). The Acquisition Engine will syn-
chronize its Y window (frame) with the SOF and X window with the SOL. This means
that all packets from the camera will be dropped until the SOF is seen (causing the
Acquisition Engine to open the Y window), and then packets are further dropped until
SOL must be seen (opening the X window). Each line requires an SOL packet. This
process keeps the Acquisition Engine synchronized to the camera even if packets are
dropped. This functionality can be enable/disable by the ZSYNC and YSYNC bits.
2.2.4 Synchronizing the StreamSync Acquisition Engine With a Camera Link Camera
Normally acquisition is synchronized with camera by FVAL (Frame VALid) and the
LVAL (Line VALid). The Acquisition Engine will synchronize its Y window (frame) with
the FVAL and X window (line) with the LVAL. This means that all pixels from the cam-
era will be dropped until the FVAL is seen (causing the Acquisition Engine to open the
Y window), and then packets are further dropped until LVAL must be seen (opening
the X window). Each line requires an LVAL edge. This process keeps the Acquisition
Engine synchronized to the camera even if packets are dropped. This functionality
can be enable/disable by the ZSYNC and YSYNC bits.
Note: For line scan camera, FVAL is not used and the Y Window will open either
immediately in free-run mode, or based on a trigger eddge.
Table 2-1 Open Close Conditions
Window Open Close
V AE run level set to Run Abort V, V_SIZE volumes
Z Trigger, Immediate Trigger, Abort Z, Z_SIZE frame
Y Trigger, SOF/FVAL, Immediate Trigger, Abort Y, Y_SIZE lines
X SOL/LVAL, Immediate Abort X, X_SIZE pixels
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Productinformatie
| Merk | Advantech |
| Model | PCIE-1144-AE |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 34568 MB |
