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Triggering the Oscilloscope
To use SPI triggering
Assign source channels to the clock, data, and frame signals
1Press the Signals softkey to access SPI trigger settings for clock source
and slope, data source, and frame type and source.
2Press the
Clock softkey or turn the Entry knob to select the channel
connected to the SPI serial clock line. The CLK label for the source
channel is automatically set.
As you press the Clock softkey (or rotate th e Entry knob on mixed-signal
oscilloscopes), the CLK la bel fo r t he sou rc e c ha nne l i s a ut oma ti ca ll y se t a nd th e
channel you select is shown in the upper-right corner of the d isplay next to
"SPI".
Adjust the trigger level for the selected analog channel by turning the Trigger
Level knob. Select Threshold in the D7 Thru D0 or D15 Thru D8 menu to set the
level for digital channels. The value of the trigger level or digital threshold is
displayed in the upper-right corner of the display.
Clock
channel Clock
slope Data
channel Frame
channel Return to
previous menu
Frame by
condition