ALLIED Vision Technologies Marlin F-201 - Manual (Page 124)

Controlling image capture
MARLIN Technical Manual V2.4.0
124
Microcontroller-Sync is an internal signal. It is generated by the microcon-
troller to initiate a trigger. This can either be a direct trigger or a release for
ExSync if the camera is externally triggered.
End of exposure to first packet on the bus
After the exposure, the CCD or CMOS sensor is read out; some data is written
into the FRAME_BUFFER before being transmitted to the bus.
The time from the end of exposure to the start of transport on the bus is:
500 µs ± 62.5 µs
This time 'jitters with the cycle time of the bus (125 µs).
Figure 67: Data flow and timing after end of exposure
OneShot Command
μC-> ExSync
Integration-Start
Timebase Reg.
X
Shutter-Reg.
Offset
Processing Delay
< 250 µs
<= 8 µs
T
imebas
e x
Sh
ut
te
r
+ Offs
et
= Ex
pos
ure Tim
e
First Packet on Bus
<= 500 µs
+/-62.5 µs
Exposu
re
Marlin F-033: 12 µs
Marlin F-046 : 12 µs
Marlin F-080: 30 µs
Marlin F-080-30fps: 17 µs
Marlin F-145: 26 µs
Marlin F-146: 26 µs
Marlin F-201: 39 µs
Marlin F-131: < 1 µs