User manual

PicoScope 6 User's Guide 137
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7.9
Triggering toolbar
The Triggering toolbar tells the scope device when to start capturing data. See
also: Trigger.
Trigger Mode. The list of available modes varies depending on the
type of scope device in use.
None: PicoScope acquires waveforms repeatedly without waiting
for a signal to trigger on.
Auto: PicoScope waits for a trigger event before capturing data. If
there is no trigger event within a reasonable time, it captures data
anyway. It repeats this process until you click the Stop button .
"Auto" mode does not set the trigger level automatically.
Repeat: PicoScope waits indefinitely for a trigger event before
displaying data. It repeats this process until you click the Stop
button . If there is no trigger event, PicoScope displays nothing.
Single: PicoScope waits once for a trigger event, then stops
sampling. To make PicoScope repeat this process, click the Start
button.
Rapid: PicoScope instructs the scope device to acquire a
sequence of waveforms with the minimum possible delay between
them. The display is not updated until the last waveform in the
sequence has been captured. When the operation is finished, you
can step through the waveforms using the Buffer Navigation
toolbar .
ETS: Equivalent Time Sampling. PicoScope captures many cycles
of a repetitive signal, then combines the results to produce a single
waveform with higher time-resolution than is possible with a single
capture. For accurate results, the signal must be perfectly repetitive
and the trigger must be stable. ETS is not available on mixed-signal
oscilloscopes when digital channels are enabled.
If you select ETS when an Advanced Trigger type is enabled, the
trigger type will revert to Simple Edge and the Advanced
Triggering button will be disabled.
Advanced Triggering. Click to open the Advanced Triggering
dialog, which gives you extra trigger types beyond the simple
edge trigger. If this button is disabled, it is because either None or
ETS is selected in the trigger mode control, or your scope device
does not support this mode. To enable the Advanced Triggering
button, set the control to another trigger mode, such as Auto,
Repeat or Single.
Trigger Source. This is the channel that PicoScope monitors for
the trigger condition.
Rising Edge. Click to trigger on the rising edge of the waveform.
Falling Edge. Click to trigger on the falling edge of the waveform.
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