Getting Started 1
InfiniiVision 7000B Series Oscilloscopes User’s Guide 39
When the arrow to the left of the [Digital] key is illuminated, the upper
knob selects (and highlights in red) individual digital channels, and the
lower knob positions the selected digital channel.
If a trace is repositioned over an existing trace the indicator at the left
edge of the trace will change from D
nn
designation (where nn is a one or
two digit channel number from 0 to 15) to D
*
. The “
*
” indicates that two
channels are overlaid.
You can rotate the upper knob to select an overlaid channel, then rotate
the lower knob to position it just as you would any other channel.
For more information on digital channels see Chapter 17, “Digital
Channels,” starting on page 359.
14. Serial Decode Controls These [Serial] key is used to enable serial
decode. The upper and lower knob are not used with serial decode.
For more information on serial decode, see Chapter 9, “Serial
Decode/Lister,” starting on page 255.
15. Measure Keys Press the [Cursors] key to turn on cursors that you can
use for making measurements. Press the [Meas] key to access a set of
predefined measurements. See Chapter 5, “Measurements and Math
Functions,” starting on page 153.
16. [AutoScale] Key When you press the [AutoScale] key. the oscilloscope
will quickly determine which channels have activity, and it will turn these
channels on and scale them to display the input signals. See “Input a
Waveform and AutoScale” on page 32.
17. Run Controls Press [Run/Stop] to make the oscilloscope begin looking
for a trigger. The [Run/Stop] key will illuminate in green. If the trigger
mode is set to “Normal,” the display will not update until a trigger is
found. If the trigger mode is set to “Auto,” the oscilloscope looks for a
trigger, and if none is found, it will automatically trigger, and the display
will immediately show the input signals. In this case, the Auto indicator at
the top of the display will change to Auto? and the background will flash,
indicating that the oscilloscope is forcing triggers.
Press [Run/Stop] again to stop acquiring data. The key will illuminate in
red. Now you can pan across and zoom- in on the acquired data.
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