Usb2 decode trace annotations, Serial data debug solutions 184 – Teledyne LeCroy Serial Data Debug Solutions User Manual
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Serial Data Debug Solutions
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919586 RevA
Two Single Ended Probes
With Two Single Ended Probes selected, separate data positive and data negative Source Selectors are
shown on the main Decode Setup... dialog.
One Single Ended Probe
With One Single Ended Probe selected, a single data positive OR data negative Source Selector is shown
on the main Decode Setup... dialog.
Select a Bus Speed value from Low, Full, and High choices.
USB2 Protocol Exporter Right-Hand Dialog
The USB2 Protocol Exporter right-hand dialog provides detailed controls for synchronizing and sending your
data to the Protocol Analyzer.
USB2 Decode Trace Annotations
Like all trace annotations, USB2 Decode annotations are rectangular shadings used to highlight messages on
decoded waveforms for easy viewing.
Tip: Data packets (or messages) on properly decoded protocol signals can be viewed using Serial Decode Trace
Annotations (on page 18), the Protocol Results Table (on page 19), and/or by Searching for Messages (on
page 21) (Types and Subtypes). Using these tools together provides fast insight to your data. See Serial Decode
Trace Annotations (on page 18) for more information.
Messages shown as annotations, table columns, and search types for most protocols are classified into Frames,
Errors, Unknown, or Grouped Primitives specific to the protocol. Sub Types then further classify each main
message type into more protocol-specific messages.