Teledyne LeCroy CANbus TD and CANbus TDM - Operators Manual - Manual (Page 39)

Operator's Manual
CANbus-TD-TDM-OM-E RevB
39
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FILL - Auto Save occurs until the hard drive is filled
PLEASE NOTE THE FOLLOWING:
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Choose a Binary file format if you want to recall the traces into a LeCroy oscilloscope for
later analysis.

Even though the LeCroy oscilloscope hard drives are very large, it is a good idea to make
sure that your trigger condition is set correctly before beginning your acquisitions.

This method is not guaranteed to capture all of your trigger events, since there is a large
amount of “dead time” between triggers as the acquisition is captured, displayed, and
stored to the hard drive before the scope is re-armed for a new trigger. Minimize dead
time by using Sequence Mode.
Trigger Repeatedly, Store all Triggers (Sequence Mode)
LeCroy oscilloscope’s have a powerful capability called Sequence Mode that allows you to store
all triggered events by minimizing the dead time between triggers to < 800 nanoseconds. This is
ideal for finding repetitive causes of problems on your serial data buses or associated signals.
(Not available in WaveSurfer Series).
Sequence Mode uses long acquisition memory that is divided into “segments.” As triggered
events are acquired, they are stored in acquisition “segments” to be recalled at a later date. The
length of each sequence mode acquisition segment and the total number of segments allowed is
roughly determined by the total acquisition memory in the oscilloscope. For instance, a
WaveRunner Xi with VL memory can acquire 10,000 segments each a maximum of 625 samples
long or 10 segments each a maximum of 1.25 megasamples long, or something in between.
Different acquisition memory lengths have different ranges of segments and segment lengths.
You can define any number of segments from 2 to the maximum for that memory length
(reference your oscilloscope’s on-line Help), and any length of segment (as long as there is
sufficient acquisition memory). After acquisition of all segments is complete, you can recall them
one-by-one and view them in decoded format on the oscilloscope screen.