Pike
Technical
Manual
V5.2.3
184
Controlling image capture
Controlling
image
capture
One-shot
The
camera
can
record
an
image
by
setting
the
one-shot
bit
in
the
61Ch
register.
This
bit
is
automatically
cleared
after
the
image
is
captured.
If
the
camera
is
placed
in
ISO_Enable
mode,
see
this
flag
is
ignored.
If
one-shot
mode
is
combined
with
the
external
trigger,
the
one-shot
command
is
used
to
arm
it.
The
following
screenshot
shows
the
sequence
of
commands
needed
to
put
the
camera
into
this
mode.
It
enables
the
camera
to
grab
exactly
one
image
with
an
external
trigger
edge.
If
there
is
no
trigger
impulse
after
the
camera
has
been
armed,
one-shot
can
be
canceled
by
clearing
the
bit.
Note
•
Exposure
times
entered
via
the
81Ch
register
are
mirrored
in
the
extended
register,
but
not
vice
versa.
•
Longer
integration
times
not
only
increase
sensitivity,
but
may
also
increase
some
unwanted
effects
such
as
noise
and
pixel-to-pixel
non-uniformity.
Depending
on
the
application,
these
effects
may
limit
the
longest
usable
integration
time.
•
Changes
in
this
register
have
immediate
effect,
even
when
the
camera
is
transmitting.
•
Extended
shutter
becomes
inactive
after
writing
to
a
format/mode/frame
rate
register.
Figure 80: One-shot control (SmartView)