User Manual

Controlling image capture
Guppy PRO Technical Manual V4.0.0
156
One-shot
Guppy PRO cameras 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 Chapter ISO_Enable / free-
run on page 159), this flag is ignored.
If one-shot mode is combined with the external trigger, the one-shot com-
mand is used to arm it. The following screenshot shows the sequence of com-
mands 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 cancelled by clearing the bit.
Figure 73: One-shot control (SmartView)
# 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 65: One-shot control: descriptions