Command Groups
2−32
TDS200/1000/2000 Series Oscilloscope Programmer Manual
Waveform Data Locations and Memory Allocation
The DATa:SOUrce command specifies the location of the data when
transferring waveforms from the oscilloscope. You can transfer one
waveform at a time.
You can transfer only one waveform into the oscilloscope at a time.
Each waveform is stored in one of two stored waveform locations for
2-channel models or one of four stored waveform locations for
4-channel models. You specify the stored waveform location with
the DATa:DESTination command.
NOTE . The oscilloscope stores waveforms that are 32500 data points
long. The oscilloscope truncates waveforms longer than 2500 data
points.
Waveform Preamble
Each waveform that is transferred has an associated waveform
preamble that contains information such as the horizontal scale,
vertical scale, and other settings in place when the waveform was
created. Refer to the WFMPre commands on page 2-158 for more
information about the waveform preamble.
Scaling Waveform Data
Once you transfer the waveform data to the controller, you can
convert the data points into voltage values for analysis using
information from the waveform preamble.
Transferring Waveform Data
Data transfer times depend on data format, data width, and the speed
of the controller. Refer to Programming Examples on page 4-1.
From the Oscilloscope. To transfer waveforms from the oscilloscope to
an external controller, follow these steps:
1. Use the DATa:SOUrce command to select the waveform source.
2. Use the DATa:ENCdg command to specify the waveform data
format.
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