EVAL-AD7175-8SDZ User Guide
UG-901
Rev. 0 | Page 9 of 10
DATA SECTION
Data Waveform
The data waveform shows each successive sample of the ADC
output. The toolbar in the graph allows the user to zoom in on
the data. Change the scales on the graph by typing values into
the x-axis and y-axis.
Display Units
Click
Display Units
to select whether the data graph displays in
units of voltages or codes.
Vref
Vref
sets the reference voltage used for calculating the results on
the data graph. The user must update this value when the reference
source changes, because it does not automatically update.
Autoscale
Autoscale
enables and disables the y-axis autoscale control for the
data graph. With this control enabled, the graph automatically sets
the maximum and minimum y-axis values to fit the displayed data.
X-scale and X-scale Samples
These controls set the number of data points displayed on the
x-axis. When set to fixed, the number of data points is equal to
the number in the
X-scale Samples
numeric input. This control
automatically updates each time
Start Sampling
is clicked.
When set to dynamic, all samples are displayed, including those
from previous sample batches.
Channel Selection
This control allows the user to choose which channels display
on the data waveform. It also shows the analog inputs for that
channel labeled next to the on and off controls. These controls
only affect the display of the channels and do not have any
effect on the channel settings in the ADC register map.
Latest Data
These indicators show the value of the last sample gathered on
the corresponding channel (see
Channel Selection
).
ANALYSIS SECTION
Analysis Histogram and Analysis Channel
The histogram shows the analysis of the channel selected via the
analysis channel drop-down box. This graph only shows the
histogram for one channel at a time.
Analyse Last # Samples
This is the number of samples used for creating the histogram
analysis. This is automatically set to equal the number of
samples when
Start Sampling
is clicked.
Analysis Results
This section displays the results of the histogram analysis for
the selected analysis channel. This includes both noise and
resolution measurements.
STATUS
The status section at the bottom of the window display status
updates such as
Analysis Completed
and
Reset Completed
during software use.
EXITING THE SOFTWARE
To exit the software, click the close button at the top, right
corner of the main window (see Figure 7).
SAVING RESULTS
The software can save the current captured data for later
analysis.
1.
Right-click the waveform graph.
2.
Click
Export
in the drop-down menu.
3.
Select the folder for the data to be saved into and the name
of the file you want to save.
4.
Click
Save
.
The data is saved in the format selected for display units via the
Display Units
option.
