Behavior. The reference level offset is used to calculate the log magnitude in dB. Adjusting the reference level positions the
waveform with respect to the top of the screen but does not change the position of the waveform with respect to the ground
reference marker.
Changing the reference level offset moves the waveform with respect to its ground reference marker.
What do you want to do next?
Learn about setting up the instrument for spectral phase waveforms.
Learn about the Math Setup controls.
SPI bus trigger polarity
The SS, MISO, and MOSI Active controls allow you to select when the enable is active.
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Select (H) High or (L) Low from the drop-down menu.
The SCLK Active control provides compensation for inverted signals or synchronization on the falling edge of the clock.
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Select Rising or Falling from the drop-down menu.
SPI bus trigger threshold
1. Click in the SS Threshold or SCLK Threshold entry boxes.
2. Use the multipurpose knobs to set the threshold voltage levels for the trigger.
SPI data source
In the drop-down list box, specify the MISO and or MOSI data source.
Supported ADEs
TekVISA supports these Application Development Environments:
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Microsoft C/C++
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Microsoft Visual Basic
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LabVIEW graphics software using the G language
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MATLAB analysis software
TekProbe-TekVPI interfaces
These interfaces enable the instrument to sense information about the probe such as the serial number and other unique
identification information. It also allows the instrument to provide power directly to the probe.
With this information, the instrument can automatically set up its requirements to match the characteristics of the probe, such as
termination and attenuation.
Set the timeout trigger criteria
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Click Stays High to trigger the instrument when the pulse is high for the specified time.
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Click Stays Low to trigger the instrument when the pulse is low for the specified time.
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Click Either to trigger the instrument if the signal has not crossed the threshold value for the specified time.
Oscilloscope reference
DPO70000SX, MSO/DPO70000DX, MSO/DPO70000C, DPO7000C, and MSO/DPO5000B Series 833