ubCore™ 3.1 User Guide
FireNet properties include the UNC name of the computer, its operating system, the FireNet
version it is running, the emulated MAC address it uses and its MTU size.
For digital cameras, the Properties dialog box is as follows:
Extra information includes the camera vendor and model, as well as the specification
number.
Bus anomalies
When an anomaly occurs on the bus, and a valid topology cannot be derived from the self-id
packets, then the tree cannot be drawn accurately.
In this case the last known topology is drawn dimmed. The application tries to communicate
with any active nodes on the bus, and draws in solid color the ones that are still active.
This situation might occur from time to time, especially when a device gets unplugged from
the bus. It is usually corrected with a bus reset. The SBM driver checks for this condition and
initiates a bus reset after a couple of seconds to correct the situation, so usually it won’t be
necessary to do this yourself. The communication between nodes is never halted due to a
topology error, so you should not worry if this situation occurs. In the rare case when the
problem persists, then there is some problem with some node on the bus. The only thing you
might do in this case is disconnect a few devices from the bus until you restore a valid
topology.
In extremely rare cases, the problem might persist. Then you might have to reboot your PC,
or shut it down, turn it off, remove all 1394 cables from it and then power it up again. This is a
problem that has only occurred during our development, in cases where a serious software
failure or driver crash has left the adapter in a state from which it cannot operate even after a
warm reboot, but requires a complete power off. This also means disconnecting the adapter
from the 1394 bus, because the bus itself supplies power to the adapter even when the PC is
turned off.
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Summary of Contents for API-810
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