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Configuration of the camera
STINGRAY Technical Manual
V4.4.2
335
Enter a
•
positive value
from 0...HeightOfImage to specify a position relative to
the top of the image. LinePos=0 specifies the very first image line.
•
negative value
from -1...-HeightOfImage to specify a position relative
to the bottom of the image. LinePos=-1 specifies the very last image
line.
SIS
UserValue
can be written into the camera’s image. In sequence mode for
every sequence entry an own SIS
UserValue
can be written.
Note
SIS outside the visible image area:
For certain Format_7 modes the image frame transported
may contain padding (filling) data at the end of the
transported frame. Setting LinePos=HeightOfImage
places SIS in this padding data area, outside the visible
area (invisible SIS).
If the transported image frame does not contain any pad-
ding data the camera will not relocate the SIS to the vis-
ible area automatically (no SIS).
Take in mind that the accuracy of SIS might be affected by
asynchronous traffic – mainly if image settings are
changed.
Note
•
The IEEE 1394
cycle time
will be inserted into the
very
first 4 bytes of a line
.
•
Cycle time
is a structure and not really a counter in its
first meaning.
•
Cycle time
has the three components:
– Cycle offset
– Cycles
– Seconds
•
Cycle time
is therefore something like a nested
counter: see table below.
Feature
Cycle offset
Cycles
Seconds
Bit depth
12 bit
13 bit
7 bit
Range
0 .. 3071 cycle offsets
0 .. 7999 cycles
0 .. 127 seconds
Frequency
24.576 MHz
40.69 ns
8000 Hz
125 µs
1 Hz
1 s
Table 161: Structure of
cycle time