Table of Contents
Advertisement
ADS86xxEVM-PDK Kit Operation
7.3.3
Jumper Settings for the ADS86xxEVM
The ADS86xxEVM Settings button on the left side of the GUI window describes the jumper settings on
the ADS86xxEVM. The reset and REFSEL jumpers are monitored by the GUI. If the reset jumper (J3) is
open, the GUI switches to the reset Program mode in the start page of the GUI. For details on different
jumper settings; see
jumper settings.
7.4
Capturing the Data
Data can be captured from the ADS86xxEVM either in manual mode or in auto mode. Manual mode
captures data from one of the device channels whereas auto mode captures data from the channels that
are powered up and selected in the auto channel sequence.
details for manual and auto mode, respectively.
7.4.1
Manual Mode
Manual mode can be activated by clicking on the Manual Channel N button on the left side of the GUI
window and by selecting Data Capture from the drop-down menu; see
are captured for the channel selected by the Channel Name drop-down menu. The sampling rate and
number of samples for the data capture can be entered in the ADC Capture Settings box. The
ADS86xxEVM GUI supports a sampling rate from 20 kSPS to 500 kSPS. The sampling rate is adjusted to
the closest value obtained from
Sampling Rate (kSPS) = 17000 / [34 + K] ......... for the ADS8688A, ADS8678, and ADS8668 Devices
Sampling Rate (kSPS) = 18000 / [36 + K] ........ for the ADS8698 device
where
•
0 ≤ K ≤ 816, and K is an integer.
The GUI supports a capture of 1024 samples to 8,388,608 samples. For sampling rates less than
100 kSPS, the maximum number of samples are limited to 131,072 per capture. The number of samples
are adjusted to the closest power of 2. The data captured are displayed in a graph in the GUI window.
22
ADS86xxEVM-PDK Evaluation Module
Section 3
and
Section
5.
Figure 20. ADS86xxEVM Jumper Settings
Equation
1.
Copyright © 2015, Texas Instruments Incorporated
Figure 20
shows the ADS86xxEVM GUI window for the
Section 7.4.1
Figure
and
Section 7.4.2
provide
21. In manual mode, data
SBAU245A – June 2015 – Revised July 2015
Submit Documentation Feedback
www.ti.com
(1)
(2)
Advertisement
Table of Contents
