Enabling/Disabling The Aoi List - Basler A400K User Manual

Basic Operation and Features

3.8.4.4 Enabling/Disabling the AOI List

Once you have uploaded an AOI list hex file to the camera, you can enable the sequencer. To
enable the sequencer, that is, run the AOI list, AOI trigger mode 1, 2, or 3 must be set. In modes
1 and 2, the ExSync signal triggers image capture. Mode 3 activates free-run. To disable the
feature, mode 0 must be selected (default).
Mode 0 = Disabled :
Disables the AOI list. Images are captured using the global area of interest, exposure time, frame
period and parameter set cache parameter settings.
Mode 1 = Image per Trigger :
Each rising edge of the ExSync signal triggers an image capture. If this mode is applied to the
example shown in Figure 3-15, on the first rising edge of the ExSync signal, the image will be
captured according to the area of interest settings that are in first position in the AOI list. On the
next three rising edges of the ExSync signal, three images will be captured according to the area
of interest settings that are in second position in the AOI list since 3 runs have been defined, and
so on.
In this mode, the delay time settings have no effect on the image capture, that is, there will be no
delay between the rising edge of the ExSync signal and the start of exposure.
Mode 2 = List per Trigger :
Each rising edge of the ExSync signal triggers execution of the complete AOI list. If this mode is
applied to the example shown in Figure
signal, seven images will be captured according to the area of interest settings in the AOI list, that
is, the first image will be captured according to the area of interest settings in first position, the
next three images will be captured according to the area of interest settings in second position,
and so on. The seventh image will be captured according to the area of interest settings in fifth
position and then, image capture will be stopped. On the rising edge of the next ExSync signal,
the whole sequence will be done again, and so on.
In this mode, the delay time settings have an effect, that is, there will be the defined delay between
the end of exposure of the previous image and the start of exposure of the next image.
Mode 3 = Free-run :
The AOI list is started, run and repeated non-stop. After the last position in the AOI list is done,
the sequence restarts with the first position, and so on. In this mode, the delay time settings have
an effect, that is, there will be the defined delay between the end of exposure of the previous
image and the start of exposure of the next image.
You can set mode 1, 2, 3 or 4 by using the Camera Configuration Tool Plus (CCT+) or by using
binary write commands from within your own application to set the camera's control and status
registers (CSRs).
With the CCT+
With the CCT+ (see Section 4.1), you use the AOI List Trigger Mode setting in the AOI List
parameter group to set disable the use of the AOI list or select the trigger mode.
By Setting CSRs
You can set mode 1, 2, 3 or 4 by writing a value to the Mode field of the Programmable AOI
Sequencer CSR (see page 4-30).
See Section 4.2.2
write commands.
3-32
DRAFT
3-15
for an explanation of CSRs. See Section
on page 3-30, on the first rising edge of the ExSync
4.3.1 for an explanation of using read/
Basler A400k