Instruction manual

Marlin Technical ManualV.2.7.0
203
Configuration of the camera
Extended shutter
The exposure time for long-term integration of up to 67 sec. can be entered with
μs-precision via the EXTENDED_SHUTTER register.
The longest exposure time, 3FFFFFFh, corresponds to 67.11 sec.
Test images
Bits 8-14 indicate which test images are saved. Setting bits 28-31 activates or
deactivates existing test images.
• auto gain
6100
7200
8500
91000
Note

The ABSOLUTE VALUE CSR register, introduced in IIDC V1.3, is
not implemented.
Register Name Field Bit Description
0xF100020C EXTD_SHUTTER Presence_Inq [0] Indicates presence of this fea-
ture (read only)
--- [1.. 5] Reserved
ExpTime [6..31] Exposure time in μs
Table 103: Advanced register: Extended shutter
Note

• Exposure times entered via the 81Ch register are mirrored
in the extended register, but not vice versa.
• Changes in this register have immediate effect, even
when camera is transmitting.
• Extended shutter becomes inactive after writing to a for-
mat/mode/framerate register.
• Extended shutter setting will thus be overwritten by the
normal timebase/shutter setting after Stop/Start of Fire-
View or FireDemo.
ID Timebase [μs]
Table 102: Timebase ID