Teledyne LeCroy WavePro Automation Command - Manual (Page 655)

Automation Command and Query Reference Manual - Processor Reference
BaseFrequency Double
From 1 to 2e+012 step 10 Range
This is the frequency of used to provide expected times for TIE. If a PLL is being used, this frequency
must be within the capture range for the PLL (usually quite close) or you will encounter unexpected
results. Typically the find frequency operation is quite good for setting this value, unless the input
source is "data" and the signal is very stressed (closed eye or nearly closed eye).
Description
DataIsNRZ Bool
This should be set to "true" for TIE analysis of an NRZ data stream. It should be set to false for TIE
analysis of a clock signal
Description
FindBaseFrequency Action
When activatred starts an automatic process to attempt to learn the base frequency of the clock or
data signal (see DataIsNRZ) and set the BaseFrequency contorl to the found value. Warning: be sure
to provide as many clock or data cycles as is reasonably possible for maximum precision in the result.
Description
' Visual Basic Script
Set app = CreateObject("LeCroy.XStreamDSO")
' Automatically find the frequency for clock or data signal at the input
of the TIE processor.
app.Measure.P3.Operator.FindBaseFrequency
Example
FindLevel Action
Activate this control to find the vertical level for 50% for the waveform presented at the input to this
processor. (Only for LevelType = "Absolute"
Description
' Visual Basic Script
Set app = CreateObject("LeCroy.XStreamDSO")
' Automatically find the level for 50% crossing as an absolute (vertical
units) value
app.Measure.P3.Operator.FindLevel
Example
FrequencyMultiplier Double
From 0.001 to 1000 step 0.001 Range
Hysteresis Double
From 0 to 10 step 0.1 Range
This setting establishes the zone around the level (or threshold for level crossings) which must be
traversed by the signal in order for the transition to be "qualified".
Description
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