Pike
Technical
Manual
V5.2.3
307
Configuration of the camera
Configuration
of
the
camera
When
both
auto shutter
and
auto gain
are
enabled,
priority
is
given
to
increasing
shutter
when
brightness
decreases.
This
is
done
to
achieve
the
best
image
quality
with
lowest
noise.
For
increasing
brightness,
priority
is
given
to
lowering
gain
first
for
the
same
purpose.
MinValue
and
MaxValue
limits
the
range
the
auto
shutter
feature
is
allowed
to
use
for
the
regulation
process.
Both
values
are
initialized
with
the
minimum
and
maximum
value
defined
in
the
standard
SHUTTER_INQ
register
(multiplied
by
the
current
active
timebase).
If
you
change
the
MinValue
and/or
MaxValue
and
the
new
range
exceeds
the
range
defined
by
the
SHUTTER_INQ
register,
the
standard
SHUTTER
register
will
not
show
correct
shutter
values.
In
this
case
you
should
read
the
EXTENDED_SHUTTER
register
for
the
current
active
shutter
time.
Changing
the
auto
shutter
range
might
not
affect
the
regulation,
if
the
regulation
is
in
a
stable
condition
and
no
other
condition
affecting
the
image
brightness
is
changed.
If
both
auto gain
and
auto shutter
are
enabled
and
if
the
shutter
is
at
its
upper
boundary
and
gain
regulation
is
in
progress,
increasing
the
upper
auto
shutter
boundary
has
no
effect
on
auto
gain/shutter
regulation
as
long
as
auto
gain
regulation
is
active.
0xF1000364 AUTOSHUTTER_LO
---
[0
to
5]
Reserved
MinValue
[6
to
31]
Minimum
auto
shutter
value
lowest
possible
value:
10
µs
0xF1000368 AUTOSHUTTER_HI
---
[0
to
5]
Reserved
MaxValue
[6
to
31]
Maximum
auto
shutter
value
Note
•
Values
can
only
be
changed
within
the
limits
of
shutter
CSR.
•
Changes
in
auto
exposure
register
only
have
an
effect
when
auto
shutter
is
enabled.
•
Auto
exposure
limits
are:
50..205
(
SmartView
Ctrl1
tab
:
Target gray level
)
Note
As
with
the
Extended
Shutter
the
value
of
MinValue
and
MaxValue
must
not
be
set
to
a
lower
value
than
the
minimum
shutter
time.
Register
Name
Field
Bit
Description
Table 169: Advanced register: Auto shutter control (continued)
