Instruction manual

Controlling image capture
Multi-Shot can also be combined with the external trigger in order to grab a certain number of
images based on an external trigger. This is especially helpful in combination with the so called
Deferred_Mode to limit the amount of grabbed images to the FIFO size.
9.5 ISO_Enable / Free-Run
Setting the MSB (bit 0) in the 614h register (ISO_ENA) puts the camera into ISO_Enable mode or
Continuous_Shot. The camera captures an infinite series of images. This operation can be quit by
deleting the “0” bit.
9.6 Asynchronous broadcast
The camera accepts asynchronous broadcasts. This involves asynchronous write requests that use
node number 63 as the target node with no acknowledge.
This makes it possible for all cameras on a bus to be triggered by software simultaneously - e.g.
by broadcasting a “One_Shot”. All cameras receive the “One_Shot” command in the same
IEEE-1394 bus cycle. This creates uncertainty for all cameras in the range of 125 µs.
ter-camera latency is described in chapter 9.7.
e following screenshot sho
example of FirePackage (version 1V51 or newer):
and, which stops all cameras connected to the same IEEE-1394
ey down while clicking on <Write>.
broadcast One_Shot” in the same way, which forces all connected
In
Th ws an example of broadcast commands sent with the Firedemo
Line 1 shows the broadcast comm
bus. It is generated by holding the <shift> k
ne 2 generates a “Li
cameras to simultaneously grab one image.
Figure 59: Broadcast One_Shot
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