Scan views – Teledyne LeCroy HDO 4000 Operators Manual User Manual
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HDO4000 High Definition Oscilloscope
l
Measurement -- choose the measurement parameter you wish to search.
l
Filter Method -- choose the operator that indicates the desired relationship to the Filter Limit. Only
measurements that meet this criteria are returned.
l
Filter Limit -- enter the value that completes the filter criteria.
Alternatively, you can use the Filter Wizard to create the filter criteria.
S
ERIAL
P
ATTERN
M
ODE
Serial Pattern Mode is used for finding 2- to 64-bit patterns in digital sequences; ideal for bursted
patterns where a PLL cannot lock. Additional settings for Serial Pattern Mode are:
l
Viewing -- choose to enter the pattern as Binary or Hex.
l
Binary/Hex -- enter the pattern.
l
Num. Patterns to detect -- enter a whole number.
B
US
P
ATTERN
M
ODE
Bus Pattern Mode (-MS models only) is used for finding 2- to 16-bit patterns across the digital lines.
Additional settings for Bus Pattern Mode are:
l
Viewing -- choose to enter the pattern as Binary or Hex.
l
Binary/Hex -- enter the pattern.
l
Num. Patterns to detect -- enter a whole number.
Scan Views
Scan Views are different ways to view your WaveScan results. You can choose to display views
simultaneously or visit them sequentially. Just check the boxes at the bottom of the WaveScan dialog for
those views you wish to display. Uncheck the box to turn off the view.
You'll find additional controls for manipulating Zooms on the Zoom dialog. If you turn on the Zoom trace
from its setup dialog, you must turn it off from there, too.
S
OURCE
T
RACE
By default, the source trace is displayed in the top grid, with markers indicating points in the trace that
meet the search criteria.
T
ABLE
A
ND
T
IMES
Table view displays a table of measurements relevant to your chosen Search Mode next to the source
trace. Times adds columns to the table showing Start and Stop Times for each event.
Z
OOM
Zoom view works exactly as it does elsewhere in the oscilloscope software, opening a close-up of the
source trace in a new grid that you can rescale vertically and horizontally. A Zx tab appears by default
when you launch WaveScan; see
for an explanation of the remainder of the controls found
on this dialog.
One unique feature of the WaveScan Zoom is that you can automatically zoom the events captured from
the source trace by touching the Prev/Next buttons on the Zx dialog. You can also select the event from
the Table display, and you are automatically relocated to that event on the zoom trace.
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