Nordic Semiconductor PCA63511, Руководство пользователя

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7 Using the Power Profiler Kit desktop application
Doc. ID 4425_027 v1.0 Page 22
7.1 Configuration settings
A continuously updated calculation of average, RMS, maximum, and minimum current consumption is made
during the measurement and displayed in the
Settings
window of the PPK desktop application.
The available configuration settings in the Settings window of the PPK desktop application are:
DUT On/Off
Allows you to turn the power on and off for the DUT.
Average (Start/Stop and Window)
The
Average
section in the
Plots
window gives
a graphical presentation of averaged samples.
Each point in the plot is an average of 10 samples
(measurements). The noise is filtered out and an
accurate average measurement is given.
Use the
Start
/
Stop
button to start or stop the
average measurement.
Using the
Window
option, the time span can be
adjusted for the
Average
plot in the
Plots
window. It
can be adjusted to up to 20 seconds.
Trigger (Single, Start/Stop, Window, Trigger level,
Enable external trigger)
The
Trigger
section of the
Plots
window displays a
number of raw samples with high resolution. The plot
gives the current profile in x ms after a current of y µA
is detected.
To make a one-time capture of the triggered data,
press the Single button.
Use the
Pause
/
Start
button to pause or start the
triggered data respectively. While running, the
displayed data will be updated every time the current
exceeds the trigger level.
Using the
Window
option, the time span can be
adjusted for the
Trigger
plot in the
Plots
window.
Using the Trigger level option, the current is set for
the
Trigger
plot in the
Plots
window.
Select the option Enable external trigger to trigger
the current measurement from an external source.
Your external source needs then to be connected to
the TRIG IN pin of the PPK TRIGGER ( P20 ) connector.
Cursors (Average/Trigger window)
Both plots in the
Plots
window have cursors that can
be adjusted within the whole time frame for selecting
the areas of interest in the measured data set. Select/
deselect the
Enabled
option to enable or disable the
cursors.
The X (X1 and X2) and Y (Y1 and Y2) values for
the cursors and the cursor delta (Δ) are updated
automatically as you move the cursors in the
Plots
window.
The cursors have their own calculations (RMS and
AVG), so you can measure only the interesting
data (in the defined area of interest). The cursors