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7.4.2
Auto Mode
Auto mode can be activated by clicking on the Auto with Reset Mode button and selecting Data Capture
from the drop-down menu. In auto mode, data are captured sequentially for the channel selected in the
auto channel sequence. The channels can be enabled or disabled by the check boxes corresponding to
the channels. In auto mode, the sampling rate entered is an aggregate of the sampling rate for all
channels enabled in the auto channel sequence. The effective sampling rate for a channel is the sampling
rate for the device divided by the number of channels enabled. The sampling rate for the device must be
entered in the Sample Rate (ksps) box. Also in auto mode, the sampling rate follows the calculation of
Equation
1.
The number of samples to be captured per channel must be entered in the ADC Capture Settings box.
The number of samples per channel value is adjusted to the closest power of 2 by the GUI. The GUI
supports a maximum capture of 8,388,608 samples per capture. The maximum number of samples per
channel that can be captured in auto mode is determined by
(Number of Samples per Channel) × (Number of Channels Enabled) ≤ 8,388,608
Data captured in auto mode can be viewed in single graph view or in multi graph view. In single graph
view, data for an individual channel are displayed in a single graph. The channel for a single graph can be
selected from the channel drop-down menu. In multi graph view, data for all enabled channels are
displayed in multi graph view.
SBAU245A – June 2015 – Revised July 2015
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Figure 21. Manual Mode Data Capture
Figure 22
and
Figure 23
Copyright © 2015, Texas Instruments Incorporated
ADS86xxEVM-PDK Kit Operation
Equation
3.
illustrate the data captured in auto mode.
ADS86xxEVM-PDK Evaluation Module
(3)
23
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