Parameters and Commands
Bonito Technical Manual
V2.2.1
37
Double region of interest mode (D)
In double ROI mode (
D=1
) the camera outputs two equally sized regions of
interest. Both ROIs share the parameters
N
and
I
and are output as two
halves of one image. The top half contains the lines of the primary ROI (ROI1),
the bottom half the lines of the secondary ROI (ROI2) accordingly.
The starting line address for ROI1 is configured using the parameter
A
.
Parameter
B
controls the starting line address of ROI2. Each ROI has the height
of (
N
+ 1) lines, thus the resulting image has (
N
+ 1) * 2 lines.
Exposure time (E)
The exposure time is a 32-bit value. Its time resolution depends on the prescaler
value
K
and is 3 μs by default. See Chapter
Timer prescaler value (K)
on page
39.
Technically the value range is 32 bit, whereas the useful exposure times should
be up to ~ 1 second.
Frame duration (F)
The frame duration is a 32-bit value. Its time resolution depends on the
prescaler value K and is 3 μs by default.
Note
The exposure time control using this value is only active if the
trigger mode is set to
M=2
or
M=3
.
Note
The frame duration control using this value is only active if the
trigger mode
M
is set accordingly.
See Chapter
Exposure control mode (M)
on page 40.
