Parameters and Commands
Bonito Technical Manual
V2.2.1
39
Synchronization output (J)
Use parameter
J
to configure output on pin 6 of the camera control connector.
Timer prescaler value (K)
A basic timer clock frequency of 56 MHz is divided by the prescaler value
(
K
+ 1) to generate the time base for exposure time
E
and frame duration
F
.
This parameter is 16-bit wide. Valid values range from
K=1
to
K=FFFF
.
An assignment of
K=37
(decimal: 55) leads to a timer resolution of
(55 + 1) / 56 MHz = 1 μs, for example. Default is
K=A7
, which equals 3 μs.
Setting
Output signal
J=0
Effective sensor exposure
J=1
Charge transfer pulse
Active for one line duration at the end of exposure. End of this
pulse marks the end of exposure and at the same time start of
sensor readout.
In PIV mode: this pulse occurs at the exposure end of only the
first image of each PIV pair. For more information see Chapter
Exposure control mode (M)
on page 40.
J=2
Effective sensor readout
J=3
Exposure phase
Contrary to J=0 this setting shows the exposure phase of the
internal state machine and not the effective exposure of the sen-
sor. This allows to synchronize external devices even if the sensor
is in permanent exposure mode. For more details see Chapter
Exposure control mode (M)
on page 40.
J=8
Same as J=0, but with inverted logic on sync output
J=9
Same as J=1, but with inverted logic on sync output
J=A
Same as J=2, but with inverted logic on sync output
J=B
Same as J=3, but with inverted logic on sync output
Table 6: Synchronization output
Note
Use
exact multiples
of the current line duration to minimize
exposure and frame-to-frame jitter.
