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USING THE SOFTWARE
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4.1 Software Overview
This section provides a quick overview of the various features and functions of the ADS131E08EVM
software package.
There are four tabs across the left side of the GUI; from top to bottom, they are:
• About: Provides information about the EVM and software version revisions.
• ADC Register: Includes all of the control registers for the ADS131E08 in a series of related subtabs:
– Channel Registers
– GPIO
– Register Map
• Analysis: Provides different ways to analyze captured data, in the time or frequency domain, using the
following subtabs:
– Scope
– Histogram
– FFT
• Save: Provides options for saving acquired data
4.2 Global Channel Registers
The Channel Registers tab provides access to the ADS131E08 configuration and fault threshold registers.
The Global Channel Registers tab has the following options:
• Configuration Register 1: Controls daisy-chain and multiple readback (MRB) modes, the CLKOUT
connection, and the output data rate. Note that the 32 kSPS and 64 kSPS data rates provide 16-bit
data (not supported by the current version of the firmware), and the 1 kSPS, 2 kSPS, 4 kSPS, 8 kSPS,
and 16 kSPS data rates are 24 bits wide.
• Configuration Register 2: Controls the internal test source, along with the test-signal amplitude and
frequency.
• Configuration Register 3: Controls the reference buffer power-down control, the reference voltage,
and the op amp buffer control.
• Fault Control Register: Sets the comparator threshold level for fault.
Figure 13 shows the GUI panel to manipulate these registers and the respective settings for each.
Figure 13. Channel Registers GUI for the Configuration Registers
16 Performance Demonstration Kit for the ADS131E08 SBAU200 – June 2012
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