Agilent Technologies 24A, 54621D, 42A, 54621A, 22A, 41A manual To use SPI triggering

Triggering the Oscilloscope

To use SPI triggering

To use SPI triggering

Serial Protocol Interface (SPI) trigger setup consists of connecting the oscilloscope to a clock, data, and framing signal. You can then trigger on a data pattern during a specific framing period. The serial data string can be specified to be from 4 to 32 bits long.

When you press the Settings softkey, a graphic will be displayed showing the current state of the frame signal, clock slope, number of data bits, and data bit values. Press the Signals softkey in the Settings menu to see the current source channels for the clock, data, and frame signals.

•Press the More key in the Trigger section of the front panel, rotate the Entry knob until SPI is displayed in the Trigger softkey, then press the Settings softkey to display the SPI trigger menu.

Currently selected Clock,	Trigger level
Framing, or Data channel	or threshold
SPI trigger

Graphic showing current state of the SPI trigger setup

Data string values

Assign	# data bits	Data bit	Data bit	Set all	Return to
channels	in string	select	value	data bits	previous menu
				to value

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