LeCroy DDA 7 Zi series, Operator'S Manual

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Operator's Manual
WP700Zi-OM-E-RevA
70
In this example, a customer was not able to probe the desired clock signal. The only probing point available was
the output differential clock signal (C2). However, that clock was a factor of 10 slower than the clock embedded in
the data signal (C3). By using a VBScript to create a clock waveform of the appropriate frequency (waveform F1),
the customer was able to display and measure data-clock skew using a LeCroy instrument function and
parameter.
Example 5
Touch here.
Summary
The examples above illustrate only the capability to use VBScript and MATLAB. The instrument with the LeCroy
XMAP software option allows you to use Excel, MATLAB, and VBScript in this manner. Of course, you will need
to load Excel, Mathcad, or MATLAB in the scope (VBScript does not require any additional software) to take
advantage of the capability. You can think of these functions as "subroutines" of the instrument's main software,
which take in waveform data and other variables like vertical scale and offset, and horizontal scale and offset.
These functions then return a waveform or a parameter as required. In addition, you can view the calculated data
directly in Excel, MATLAB, if you desire.
What is Excel?
Excel is a program within Microsoft Office. With it you can place data in the cells of a spreadsheet, calculate other
values from them, prepare charts of many kinds, use mathematical and statistical functions, and communicate
with other programs in Office. From the instrument you can send data to Excel (where processing can take place)
and return the results to the instrument.