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6.1 EVM GUI Global Settings for ADC Control
Although the EVM GUI does not allow direct access to the voltage levels and timing configuration of the ADC
digital interface, the EVM GUI provides users with high-level control over the ADS8332 sampling rate, channel
selection, and channel scanning.
Figure 6-3
shows the interface configuration pane at the left, through which various functions of the ADS8332
are exercised. These are global settings, and persist across the different GUI testing tools, and the GUI pages
listed in the top left pane.
The Channel Select Mode field allows the user to choose to capture data from a single channel or to
automatically scan through the channels.
The Select Channel drop-down menu allows the user to select the single channel to sample (if in manual
channel select mode) or to select the start channel for the automatic scanning (if in auto channel select mode).
The ADS8332EVMV2 device supports sampling rates from 500 kSPS down to 20 kSPS. The Sampling Rate
field allows the user to type in the desired sampling rate in samples per second (SPS).
6.2 Time Domain Display Tool
The time domain display tool allows visualization of the time domain conversion results given a set of analog
input signals.
The GUI Time Domain Display shows the time domain voltage plot for a single channel or for multiple channels if
in auto channel select mode. The sample indices are on the x-axis and there are two y-axes showing the codes
and the corresponding converted analog voltages. The user can choose to select any combination of desired
channels using the Analog Channel X selection buttons at the top right side of the display.
The software captures a contingent number of samples as selected in the Samples field when the user presses
the Capture button as shown in
about the converted signals such as the selected channel maximum and minimum code and maximum and
minimum voltage for each channel using the channel drop down in the bottom right.
domain display when all eight channels are captured in auto channel select mode.
SBAU251B – JULY 2017 – REVISED FEBRUARY 2023
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Figure 6-3. EVM GUI Global Input Parameters
Figure
6-4. In addition, the bottom right side of the GUI provides information
Copyright © 2023 Texas Instruments Incorporated
ADS8332EVMV2-PDK Operation
Figure 6-5
shows the time
ADS8332EVMV2-PDK Evaluation Module
15
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