DAP Technology 1394, Operation Manual

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Recorder
89 Copyright © DapTechnology B.V., 2005-2019 - All Rights Reserved., 5/20/2019
7.3.2.2. Topology picture
The topology can only be drawn if valid topology information can be found for the cursor position. Valid
information can be found if the cursor is positioned at or after a bus reset that is followed by all the
PhySelfID packets that are needed to create the topology.
If the cursor is positioned before a bus-reset event, valid topology information can only be found if an
earlier bus reset event plus the corresponding PhySelfIDs has been recorded.
The topology is drawn in such a way that the root (highest ID) is on the top. Each IEEE1394 node
connected to the bus is displayed as a rounded rectangle. The available ports of each node are drawn as
little black boxes labeled p0 and up.
The connections between these ports are drawn with colored lines.
For the optional selected node, a selection rectangle is drawn around it as can be seen in the example
above, where node 1 is selected.
The Color of the node Rectangle bounding and the color of the connections indicate the maximum speed
of the node and connections respectively. The used colors are:
100 Mb/s
200 Mb/s
400 Mb/s
800 Mb/s or higher
The area inside the node rectangle is colored gray if the link layer of the node is not active.
The node ID is always displayed inside the node rectangle and optionally more information will be
displayed if enabled (see Select node display options above).
A node can be selected with the mouse and extra information of the selected node will be displayed right
of the picture if the ‘Bus and node information’ button is pressed (see above).
7.3.2.3. Extra bus and node information
If the ‘Bus and node information’ button is pressed, the extra information is displayed to the right of the
topology picture as can be seen in the example above.
The upper part of this extra information shows some general bus information.
See below for more information about the search for the Bus_Manager_ID register value.
The lower part of the extra information shows information on a selected node. A node can be selected by
clicking on the node in the topology picture, or selecting it from the node selection box.
The extra information for the selected node consists of information extracted from the selfID(s) of the
corresponding node and information extracted from the Configuration Rom of the corresponding node.
The information extracted from the Configuration Rom will only be displayed if this information can be
found. See below for more information about searching Configuration Rom information.
Note: The ‘Root Directory’ will not be displayed if there is no license key available for the version 2
software or higher. See
License Manager .
Information from Configuration ROM and Bus_Manager_ID
To display the optional extra information, the information from Configuration ROM and the
Bus_Manager_ID register of the CSR may be needed. The Recorder cannot read this information actively.
First because the Recorder is completely passive (does not generate packets on the bus). Second
because the current topology does not need to be the same as the topology valid at the cursor position of
the recorder. The displayed Recorder information could be from file, in which case there is no relation at
all to the current topology. Also, after the last recorded and downloaded information, there could be one or