Instruction manual

Configuration of the camera
MARLIN Technical Manual
Page 102
11.4.5 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.
Offset Name Field Bit Description
0xF100020C EXTD_SHUTTER Presence_Inq [0] Indicates presence
of this feature
(read only)
--- [1.. 5]
ExpTime [6..31] Exposure time in
µs
Table 66: Extended shutter configuration register
The longest exposure time, 3FFFFFFh, corresponds to 67.11 sec.
 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 format/mode/framerate register.
 Extended shutter setting will thus be overwritten by the normal timebase/shutter setting
after Stop/Start of FireView or FireDemo.