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9-90 Command Reference
:ACQuisition :RESolution PM6680B
8 «HIGH|LOW»
Resolution
Selects basic measurement mode for all time-related measurements.
Parameters:
HIGH: The resolution is the full 0.25 ns
LOW: The resolution is limited to a 100-ns clock. You can use this to increase the
bus speed. Saves about 0.6 to 0.9 ms if the counter does real-time calculations,
otherwise, only 0.05 ms.
Returned format:
HIGH|LOW¿
*RST condition:
HIGH
:ACQuisition :RESolution PM6681
8 «HIGH|LOW»
Resolution
Turns off interpolator usage and also ignores the high resolution part of the count
registers. Low Resolution functions only for Frequency, Period, Time-Interval and
Pulse Width
Parameters:
HIGH: The resolution is the full 50 ps
LOW: The resolution is limited to 125 ns.
At low resolution no special arming and trig options are supported. There is no
handling of Abort messages from the bus after the measurement series has been
started. That means you cannot break off a low-resolution measurement series.
The results are based primarily on the timestamp values with 125-ns resolution.
Single mode is forced on, and every period of a signal is measured. This mode is
limited in frequency to <40 kHz for Frequency and Period, and <20 kHz for Time-
Interval and Pulse Width. At 40 kHz the resolution is 1/400, or 2.6 digits.
Returned format:
HIGH|LOW¿
*RST condition: HIGH