GW Instek GDS-2000A series Quick start guide for Logic analyzer option - Manual (Page 9)

Accessing the Logic Analyzer Menu
The Logic Analyzer menu can be accessed using the
Option key.
1. Press the
Option
key and select Logic Analyzer to
access the Logic Analyzer menu.
2. Press the D15~D0 On/Off soft-key to activate the
digital channels.
 The position of each channel can be set in
this menu.
 Channels can be grouped in this menu.
3. Press Thresholds to set the thresholds.
 Thresholds can be individually set for every
4 digital channels. I.e., D0~D3, D4~D7 and
so on.
 There are 5 pre-set threshold levels in
addition to the User-defined threshold
setting (TTL, 5.0V CMOS, 3.3V CMOS,
2.5V CMOS, ECL, PECL, 0V).
4. Press Analog Waveform to display an analog
waveform of the digital channels.
 Analog waveforms can be created from
either the D0~D7 or D8~D15 digital
channels.
 Only one analog waveform can be displayed
at a time.
5. Press the Height soft-key to toggle the scale of the
digital channels.