HP 54522A - Page 78

See also
Horizontal
Sequential softkey
When the sequential softkey is set to on, the screen is cleared and the
oscilloscope is placed in the stopped state to allow selection of the
acquisition parameters (number of points and segments). The sample rate is
set by the time/div knob as per table 4-2.
Pressing the run key starts data acquisition. While the oscilloscope is
acquiring data, the message "ACQUIRING? is displayed. If the oscilloscope is
waiting for a trigger, “ACQUIRING # n" is displayed (where 7 is the segment
number the oscilloscope is waiting to acquire). After all of the segments are
captured, the message "sequential data captured, processing..." is displayed.
After the data is processed, the message "sequential data processed, select
DISPLAY menu" is displayed. You can press the Stop/Single key at any time
to stop the acquisition process.
Chapter 7, "Display Menu," for information on displaying acquired sequential
single-shot data.
# of points softkey
The number of points softkey defines how large a segment is, and you can
think of a segment as an event. An event can be a piece of a pulse or it can
be several pulses. You can specify any number of points from 4 to 32,768.
Because 500 points are displayed for a normal screen display, you can use the
pan and zoom feature to view segments that are larger than 500 points.
# of segments softkey
The number of segments softkey defines how many segments the
oscilloscope is to acquire. The maximum number of available segments is
displayed at the bottom of the softkey. This number is dependent on the
number of points, record length, and the number of active channels. If all of
the channels are off, the softkey is disabled.
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