Справочник Пользователя для Allied International AVT OSCAR V2.4.0

 OSCAR Technical Manual V2.4.0

114

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.

After the exposure, the CCD 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 52: Data flow and timing after end of exposure

One-shot command

μC ExSync

Exposu

re

Integration start

 Timebase reg. 

X 

Shutter reg.

Offset

Processing delay

< 250

 μs 

= 8

 μs 

Interlaced/progressive
Oscar F-320: 46 / 57 µs 
Oscar F-510: 74 / 83 µs 
Oscar F-810: 98 / 98 µs 

tim

ebas

e x

 s

hut

te

r 

+ offs

et =

 expos

ure tim

e

First packet on bus

= 500

 μs

+/-62.5 

μs