Teledyne LeCroy FireInspector - Users Manual - Manual (Page 114)

104
CATC F IRE I NSPECTOR 2.01 C HAPTER 8
User’s ManualBus Topol ogy Trees
Selecting this option enables live updates of the topology display as devices
are added to and removed from the bus.
Step 5
Click OK.
The topology information will be collected and presented in the topology
display.
Note: The topology information is written to a default file named tree.tsf. This file
is overwritten each time a topology tree is retrieved. To keep the information
for future reference, you need to save the data to a new file.
8.1.1 Advanced Tree Retrieving Options
Selecting 1394 1995 Reset in the Tree Retrieving dialog grants you access to these
Advanced Tree Retrieving options:
• First send PHY configuration packet with gap count equal to:
This option allows you to specify a gap count for a PHY configuration packet that will
be sent before the bus reset occurs.
• Force Analyzer to become the root, cycle master, and IRM
This option causes FireInspector to become the root node, cycle master, and IRM when
the bus is reset.
Note: Once the analyzer becomes cycle master, it will remain cycle master through a normal 1394 bus reset.
However, if a bus reset is forced via the Retrieve Tree dialog or by manually resetting the analyzer, it
will no longer assume the role of cycle master.
• Force Analyzer to become Bus manager
This option causes FireInspector to assume the role of bus manager when the bus is reset.
8.2 Viewing Bus Topology
When the Retrieve Tree command is used to collect topology information, the data is
presented in a two-paned display, with the tree graphic on the left and the written details on
the right.
Color is used to highlight useful information, such as device speed, connection speed, power
class, and the source of the most recent bus reset. The colors in the tree correspond to colors
in the right-hand pane. Nodes in the tree can be expanded and collapsed by clicking on the
branch lines.
Clicking on a node in the tree causes its information to be displayed in the right-hand pane,
while a white arrow points to the selected node.
The following information is contained in the topology tree:
• Node ID — The node ID is found in the yellow square.
• Port numbers — Port numbers are contained in the white half moons.