Pike
Technical
Manual
V5.2.3
296
Configuration of the camera
Configuration
of
the
camera
Extended shutter
The
exposure
time
for
long-term
integration
of
up
to
67
seconds
can
be
entered
with
µs
precision
via
the
EXTENDED_SHUTTER
register.
The
minimum
allowed
exposure
time
depends
on
the
camera
model.
To
determine
this
value
write
1
to
the
ExpTime
field
and
read
back
the
minimum
allowed
exposure
time.
The
longest
exposure
time,
3FFFFFFh,
corresponds
to
67.11
seconds.
ID
Time base in µs
0
1
1
2
2
5
3
10
4
20
Default value
5
50
6
100
7
200
8
500
9
1000
Table 160: Time base ID
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
feature
(read
only)
---
[1
to
5]
Reserved
ExpTime
[6
to
31] Exposure
time
in
µs
Table 161: Advanced register: Extended shutter