Teledyne LeCroy USBTracer_Trainer - Users Manual - Manual (Page 25)

USB Protocol Suite User Manual Chapter 1: Overview
LeCroy Corporation
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Test scripts can customize ReadyLink Emulation Mode to include error scenarios, such
as:
• Header LBADs
• Invalid link commands
• 8B10B / CRC Error
• Running Disparity Error
• Corrupt Link Commands
• Corrupt Flow Control (Wrong L_CRD_x, Wrong L_GOOD_n, Drop L_Good_n)
• Corrupt Header Packet acknowledgement (Send LBAD, LRTY)
• Corrupt Packet Framing (SHP, SDP, END)
At the packet level, you can send customized data payloads anywhere within the stream
to insert logic errors, perform corner-case, or do stress testing. Commands, such as the
Set ErrWrongLCRD command, allow link-layer error injection anywhere within the script.
1.2.5 Notes on LFPS Signals
Voyager Exerciser requires received “Ping” LFPS signals to be a minimum of
150 nanoseconds to be reliably recognized.
Voyager Analyzer can recognize “Ping” LFPS signals above 60 nanoseconds and report
their durations to
± 15 nanoseconds of accuracy.