Maxim Integrated
│
6
www.maximintegrated.com
USB2PMB1# Adapter Board
Evaluates: Munich (USB2PMB1#)
5)
Real Time Scope:
The scope on the bottom left side
of the GUI represents the measured data with number
of samples in X-axis and Y-axis is selected from the
available plot configurations options.
Figure 9
depicts
the options that determine the Y-axis in the scope.
a)
Scope Options:
On the top right corner of the
scope, plot settings options are available for the
user to play/pause, zoom in/out, pan, print, save,
and waveform settings.
b)
Plot Configuration Options
(
Figure 9a
):
i)
ADC Count:
This option plots the ADC count
itself on the Y-axis with the number of samples
on the X-axis.
ii)
Voltage:
This option plots the converted volt-
age value.
iii)
Current:
Plots the current measured across
the 200Ω shunt resistor present in Campbell.
iv)
4-20ma to Temp:
Plots the temperature mea-
sured from IFM TA3231 Temp-Sensor. This
sensor sinks/ sources current proportional to
the temperature measured. The shunt current
and the temperature measured would be indi-
cated the bottom of the GUI too.
v)
FFT:
This option plots the FFT measurement on
the Y-axis vs. frequency on the X-axis.
vi)
Histogram:
This option allows user to view the
resultant output in Histogram (
Figure 10
). The
X-axis is ADC code and the Y-axis is the number
occurrence.
c)
History:
This option allows the user to view the
history data by choosing the history length for view-
ing the data.
d)
Average:
Drop-down box menu to choose to aver-
age of the discrete values sampled. For instance,
if
16
is selected, it takes the first 16 samples of the
sample-shot the user takes, then averages them
and shows the number in the text box below. If his-
tory is selected as well, it adds this number as a
datapoint to the history. If
all
is selected, it uses all
the samples taken, as selected in
Sample Count
to
build the average.
Figure 9. Real Time Scope GUI
Figure 9