28119 Parallax Inc, 28119 Datasheet - Page 19

• Manufacturer Part Number: 28119
• Description: KIT UNDERSTANDING SIGNALS
• Manufacturer: Parallax Inc

Specifications of 28119

• Lead Free Status: Contains lead
• Accessory Type: Oscilloscope
• Interface Type: USB
• For Use With/related Products: BASIC Stamp® 2 and Board of Education
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Trigger Tab
Clicking the Trigger tab brings up a menu which allows you to set the Trigger Source , Trigger
Edge , Trigger Mode , and Run/Stop Mode switches (Figure 1-11). The Trigger Source switch
selects the channel monitored by the OPTAscope for a trigger event. (The external trigger
is not displayed in the Plot Area and, when selected, is limited to rising-edge trigger
events only.) The Trigger Edge switch configures the OPTAscope to wait for either a rising
edge or a falling edge to use as a trigger event.
The Trigger Mode switch selects how long the OPTAscope will wait for a trigger event. In
Normal mode the oscilloscope will wait for a trigger event until it finds one. This could
take a fraction of a second, a minute, or even a week. If the trigger event never occurs the
oscilloscope will never trigger, and you will never see a waveform in the Plot Area.
In Auto mode the oscilloscope will wait only a small portion of time for a trigger event. If
the trigger event is not detected, the oscilloscope will trigger itself automatically.
Whatever signal is being received at the time will be captured and displayed in the Plot
Area.
Figure
1-11:
Trigger
Tab
Figure
1-10:
Files /
Settings
Tab