Pike Technical Manual
V5.2.0
352
Configuration of the camera
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 the stamp in
this padding data area, outside the visible area (invisible SIS).
If the transported image frame does not contain any padding
data the camera will not relocate the SIS to the visible area
automatically (no SIS).
Take in mind that the accuracy of the time stamp might be
affected by asynchronous traffic – mainly if image settings are
changed.
Note
The IEEE 1394
cycle counter
(aka
time stamp
) will be inserted
into the
very first 4 bytes/pixels of a line
.
Cycle offset
Cycles
Seconds
Cycle offset 12 bit
Cycle count 13 bit
Second count 7 bit
0 .. 3071 cycle offsets (40.69 ns) 0 .. 7999 cycles
0 .. 127 seconds
24.576 MHz cycle timer counter
8000 Hz cycle timer counter
1 Hz cycle timer counter
Table 187: 32-bit cycle timer layout
Bit
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Cycle offset 12 bit
Cycle count ...
Bit
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
... Cycle count 13 bit
Second count 7 bit
Table 188: Cycle timer layout
