LeCroy LW110 User Manual page 130

Purpose
This command will delete a segment. The memory space that is being freed will be available for new
waveforms as long as the new waveform will be equal or smaller in size to the deleted segment. If the
deleted segment is the last segment, then the size of another waveform written to the same segment is not
limited. For example, let consider two segments, the first being a 1000-point waveform and the second with
100 points. If you delete segment 1, you can reprogram another waveform to segment 1 with size to 1000
points. If you reprogram segment 1 with 1004 points, the instrument will generate an error and will not
accept this waveform. On the other hand, if you delete segment 2, which was the last segment you
programmed, then you can reprogram this segment with waveforms having length limited only by the size of
the entire memory space.
•
<segment_number> will select the segment number that will be deleted
TRACe:DELete:ALL
Purpose
This command will delete all segments and will clear the entire waveform memory. This command is
particularly important in case you want to de-fragment the entire waveform memory and start building your
waveform segments from scratch.
The TRAC:DEL:ALL command does not re-write the memory so, whatever waveforms were
downloaded to the memory are still there for recovery. The TRAC:DEL:ALL command
removes all stop bits and clears the segment table. You can recover memory segments by
using the TRAC:DEF command. You can also use this technique to resize, or combine
waveform segments.
TRACe:SELect<segment_number>
Purpose
This command will select the active waveform segment for the output. By selecting the active segment you
are performing two function:
1. Successive :TRAC commands will affect the selected segment
2. The SYNC output will be assigned to the selected segment. This behavior is especially important for
sequence operation, where multiple segments form a large sequence. In this case, you can synchronize
external devices exactly to the segment of interest
•
<segment_number> will set the active waveform segment number
Parameter type
Numeric (integer only)
Parameter range
<segment_number>
TRACe:SELect?
Response
The LW120 will return the active segment number.
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User Manual LW120