Pike
Technical
Manual
V5.2.3
185
Controlling image capture
Controlling
image
capture
One-shot command on the bus to start of exposure
The
following
sections
describe
the
time
response
of
the
camera
using
a
single
frame
(one-shot)
command.
As
set
out
in
the
IIDC
specification,
this
is
a
software
command
that
causes
the
camera
to
record
and
transmit
a
single
frame.
The
following
values
apply
only
when
the
camera
is
idle
and
ready
for
use.
Full
resolution
must
also
be
set.
Microcontroller
sync
is
an
internal
signal.
It
is
generated
by
the
microcontroller
to
initiate
a
trigger.
This
can
either
be
a
direct
trigger
or
a
release
for
ExSync
if
the
camera
is
externally
triggered.
End of exposure to first packet on the bus
After
the
exposure,
the
CCD
sensor
is
read
out;
some
data
is
written
into
the
FRAME_BUFFER
before
being
transmitted
to
the
bus.
The
time
from
the
end
of
exposure
to
the
start
of
transport
on
the
bus
is:
710
µs
±
62.5
µs
This
time
jitters
with
the
cycle
time
of
the
bus
(125
µs).
#
Read = rd
Write = wr
Address
Value
Description
7
wr
F0F0061C
80000000
Do
one-shot.
6
rd
F0F0061C
00000000
Read
out
one-shot
register.
5
wr
F0F00830
82000000
Switch
on
external
trigger
mode
0.
4
rd
F0F00830
80000000
Check
trigger
status.
3
wr
F0F00614
00000000
Stop
free-run.
2
rd
F0F00614
80000000
Check
Iso_Enable
mode
(
free-run).
1
rd
F0F00614
00000000
This
line
is
produced
by
SmartView.
Table 77: One-shot control: descriptions
Feature
Value
One-shot
microcontroller
sync
150
µs
(processing
time
in
the
microcontroller)
µC-Sync/ExSync
integration
start
8
µs
Table 78: Values for one-shot