Allied Vision Technologies AVT Oscar, Техническое руководство, Страница: 184 / 212

Configuration of the camera
OSCAR Technical Manual V2.4.0
184
Time base
Corresponding to IIDC, exposure time is set via a 12-bit value in the corre-
sponding register (SHUTTER_INQ [51Ch] and SHUTTER [81Ch]).
This means that you can enter a value in the range of 1 to 4095.
Oscar cameras use a time base which is multiplied by the shutter register
value. This multiplier is configured as the time base via the TIMEBASE regis-
ter.
The time base IDs 0-9 are in bits 28 to 31. See Table 86: Time base ID on
page 184.
Default time base is 20 µs: This means that the integration time can be
changed in 20 µs increments with the shutter control.
Register Name Field Bit Description
0xF1000208 TIMEBASE Presence_Inq [0] Indicates presence
of this feature
(read only)
--- [1..27] Reserved
Timebase_ID [28..31] See Table 86: Time
base ID on page
184
Table 85: Advanced register: Time base
Note
L
Time base can only be changed when the camera is in idle
state and becomes active only after setting the shutter value.
ID Time base in µs Description
0 1
1 2
2 5
3 10
4 20 default value
5 50
6 100
7 200
Table 86: Time base ID