Viewer Basics
Once the MediaLB data has been captured and stored in a file, we want to watch and analyze it. At first, simply double click on one of your trace files when asked to load any existing settings for the viewer.
The viewer shows one line per event, in our case one physical MediaLB channel, called a MediaLB RAW-event.
Remember when we did this setting? It was right at the beginning when we connected the MediaLB Monitor to OptoLyzer Suite and configured the tool.
Let's have a closer look at these MediaLB-Raw events in the viewer window:
First of all, you can double click on the top-left cell of the event grid to optimize the column width for all events or double click just on a specific column header.
Each event starts with a timestamp (time, milliseconds, and microseconds) followed by the small icon in the second column showing that the analyzer has been synchronized to the MediaLB clock during capturing, called "LOCK-state".
The next column indicates a MediaLB speed of 512 times the frame sequence in our example. It means that one MediaLB frame transports exactly 512 bits.
The fourth column represents the number of the physical channel of this event and as you can see in our example, the MediaLB frame provides 16 time-multiplexed physical channels, starting with 00, 01, 02 going up to 15. For higher MediaLB speed grades, we could see a lot more physical channels.
The line which contains the Physical Channel 00 (PC 00) also has the Channel Address 01FE and the data is the so-called System Channel which is not available for user payload. PC 00 is shown in grey, marking-up the start of a new MediaLB frame.
The fifth column just shows the number of the actual MediaLB frame and you can see that the 16 physical channels here all belong to the same MediaLB frame. The next MediaLB frame starts again with a grey line representing again Physical Channel 00, having an incremented Frame Count.
The following three columns, in red color, show the command byte, the response byte, and the 2-byte Channel Address of the MediaLB Signal line whereas the green column labeled "data" contains the data quadlet, transferred on the MediaLB Data line.
The last column indicates higher layer Protocol states, such as success, called LOCK, Busy, or others.
For more details, watch the video.
