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1602 Keysight InfiniiVision 4000 X-Series Oscilloscopes Programmer's Guide

42 Synchronizing Acquisitions

# - Slow, as you don't want to poll the oscilloscope too fast.

# - DOES NOT work for Equivalent time mode. MUST use the blocking

# method.

# - Slow

# - Does NOT work for Average Acquisition type

# - :SINGle does not do a complete average

# - It does a single acquisition as if it were in NORMal

# acq. type

# - Counting triggers in :RUN is much too slow

# - Works for Segmented Memory, BUT if any post processing is done

# on the oscilloscope, for example measurements, lister, math, as

# this reports that the acquisition is done, which is correct,

# BUT the processing is NOT done, and it will take an indefinite

# amount of time to wait for that, though there is no way to tell

# if it is done. Use the blocking_method for Segmented Memory.

# - Can't be used effectively for synchronizing math functions

# It can be done by applying an additional hard coded wait after

# the acquisition is done. At least 200 ms is suggested, more

# may be required.

# However, as long as the timeout is not excessively short, the

# math happens fast enough that once :OPERegister:CONDition?

# comes back as done that one can just wait for it when it is

# time to pull the math waveform. The exception would be for eye

# or jitter mode on a 6000 X-Series oscilloscope, where the

# processing time can be long.

# - Still need some maximum timeout (here MAX_TIME_TO_WAIT),

# ideally, or the script will sit in the while loop forever if

# there is no trigger event

# Max timeout (here MAX_TIME_TO_WAIT) must also account for any

# processing done (see comments on math above)

# Max timeout (here MAX_TIME_TO_WAIT) must also account for time

# to arm the scope and finish the acquisition

# This arm/trigger/finish part is accounted for in the main script.

# How it works:

# - What really matters is the RUN bit in the Operation Condition

# (not Event) Register. This bit changes based on the

# oscilloscope state.

# If the oscilloscope is running, it is high (8), and low (0) if

# it is stopped.

# The only (best) way to get at this bit is with the

# :OPERation:CONDition? query. The Operation Condition Register

Brand	Keysight Technologies
Model	InfiniiVision 4000 X Series
Category	Test Equipment
Language	English

Keysight Technologies InfiniiVision 4000 X Series User Manual

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