Tektronix TBS2072, User Manual

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Using the USB File Utility functions
Formatting the USB drive
Formatting a USB drive removes the fi le and directory names from the drive, making the entire USB drive memory available
for new fi les and folders.
CAUTION. Formatting a USB drive does not remove the data on the drive. It deletes the FAT table entries for the names of
the fi les and folders and marks the memory as available. If you have critical or secure data that must be removed from the
USB drive, connect the USB drive to a PC and use a fi le ‘shredding’ program to replace the fi le data with zeros.
1. Push the Save/Recall front-panel button.
2. Push the File Utility side-menu button.
3. Push the Format side-menu button.
4. Use the Multipurpose knob to select and click Yes . The oscilloscope formats the drive and reopens the fi le utility pane.
About automatically generated fi le names
The oscilloscope automatically creates a numbered fi le name for the fi les that it saves to the USB drive.
The naming convention is TEKXXXXX.<ext>, where:
XXXXX is an integer from 00000 to 99999
<.ext> is the fi le type (.PNG, .BMP, or .JPG for screen image fi les; .SET for setup fi les; .ISF or .CSV for waveform fi les)
To create a new fi le name, the oscilloscope scans the USB drive to determine the highest-numbered fi le name present for the
fi le type being saved. The oscilloscope then increments that number and uses it for the new fi le name. For example, the
fi rst time you save a fi le, the oscilloscope creates the fi le name TEK00000. The next time you save the same type of fi le,
the new fi le is named TEK00001.
Image, setting, and waveform fi le tips
If there are nonsequential jumps in the fi le numbering, such as TEK00001, TEK00002, TEK00005, the oscilloscope uses
the highest-numbered fi le as the starting point for new fi le names (TEK00006 in this example).
If you select a different USB drive or folder location, the oscilloscope creates the fi le number based on the fi les
present in that USB drive or folder. For example, if you select the save folder as /usb0/MyProject1, which contains fi le
TEK00006.png, the next saved .png fi le in that folder is named TEK00007.png.
To determine the channel or waveform type ( Math , FFT , Ref ) of a saved waveform fi le, open the waveform fi le (.CSV or
.ISF) in a text editor. The channel name or waveform type is at or near the top of the fi le structure.
78 TBS2000 Series User Manual