User manual

ManualsBrandsPICO ManualsLaboratory Test EquipmentPC scope module Scope 6402D 250 MHz 8-channel 5 null 512 null 8 Bit Digital storage (DSO), Function generator,

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PicoScope 6 User's Guide 139

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. The Single trigger is the only type that allows one capture

to fill the entire buffer memory.

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.

Note: rapid triggering is available only on certain devices (see

device feature table) and on the fastest timebases.

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.