Technical data

Mask Test Commands 24
Agilent Infiniium 9000 Series Oscilloscopes Programmer's Reference 461
:MTESt:FOLDing:FAST
Command :MTESt:FOLDing:FAST {{ON | 1} | {OFF | 0}}
The :MTESt:FOLDing:FAST command turns the "Fast, Worst Case Only"
real- time eye display option ON or OFF.
When ON, the oscilloscope performs a fast real- time eye display by
showing only the worst case bits and other bits that surround them.
This option can be used to speed up the real- time eye display when the
oscilloscope is using deep memory.
Worst case bits are evaluated using these 8 points inside the eye:
• Left and right of the eye at the threshold level.
• Left and right of the eye at the threshold + hysteresis level.
• Left and right of the eye at the threshold - hysteresis level.
• Top and bottom of the eye at the center.
For each bit that represents the worst case at one of the evaluated points,
the 1,000 bits that surround that bit are also displayed. So, up to 8,000
bits per acquisition can contribute to the real- time eye display. Keep in
mind that one bit can represent the worst case at multiple points or that
the 1,000 bits surrounding the worst case bits can overlap, so there can be
fewer than 8,000 bits displayed per acquisition.
Example This example turns on the "Fast, Worst Case Only" real-time eye display
option.
myScope.WriteString ":MTESt:FOLDing:FAST ON"
Query :MTESt:FOLDing:FAST?
The :MTESt:FOLDing:FAST? query returns the current setting.
Returned Format
[:MTESt:FOLDing:FAST] {1 | 0} <NL>
Example myScope.WriteString ":MTESt:FOLDing:FAST?"
strSetting = myScope.ReadString
Debug.Print strSetting