SBOU299 May   2026

 

  1.   1
  2.   Description
  3.   Features
  4.   4
  5. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
  6. 2Hardware
    1. 2.1 Current Sensing IC
    2. 2.2 Current Sensing Operation
      1. 2.2.1 Detailed Setup
    3. 2.3 Input Signal Path
    4. 2.4 Digital Circuitry
  7. 3Software
    1. 3.1 Quick Start Setup
    2. 3.2 EVM Operation
      1. 3.2.1 Setup
        1. 3.2.1.1 Driver Installation
        2. 3.2.1.2 Firmware
          1. 3.2.1.2.1 Firmware Debug
        3. 3.2.1.3 GUI Setup and Connection
          1. 3.2.1.3.1 Initial Setup
          2. 3.2.1.3.2 GUI to EVM Connection
      2. 3.2.2 GUI Operation
        1. 3.2.2.1 Homepage Tab
        2. 3.2.2.2 Configuration Tab
        3. 3.2.2.3 Registers Tab
        4. 3.2.2.4 Results Data Tab
      3. 3.2.3 Direct EVM USB Communication
        1. 3.2.3.1 Standard USB Read and Write Operations
          1. 3.2.3.1.1 Set Device Address
          2. 3.2.3.1.2 Read Register
          3. 3.2.3.1.3 Write to Register
        2. 3.2.3.2 Collect Data Through the USB BULK Channel
          1. 3.2.3.2.1 Collect Data
          2. 3.2.3.2.2 USB BULK Receiving Data
          3. 3.2.3.2.3 Stop Data Collection
      4. 3.2.4 PAMB Compatibility
  8. 4Hardware Design Files
    1. 4.1 Schematics
    2. 4.2 PCB Layout
    3. 4.3 Bill of Materials
  9. 5Additional Information
    1. 5.1 Trademarks
  10. 6Related Documentation

3.2.2.3 Registers Tab

To view and edit the device registers, click the INA233EVM (Registers) icon on the menu to the left. The Registers tab appears similar to the tab shown in Figure 3-11.

INA233EVM GUI Registers Tab Figure 3-11 GUI Registers Tab

From the GUI Register Tab, device registers on the EVM can be read and written to. Here are some important notes:

  • Use the Selected EVM drop-down menu at the top to choose which device to work with on the register map.
    • Note, changing this selection also changes the same setting for the Configuration tab.
    • Functionally, this setting sets the default read or write address in the MCU and then reads all register values back to update the register map. Note that if the data is being collected at a high frequency, then this can cause a minor delay in the data collection. For optimal performance, set device settings before starting data collection.
  • By default, all changes are automatically written to the device. If desired, the Immediate Write setting can be changed to Deferred Write to only allow writing when needed.
    • The writable register values can be modified using any of these methods:
      • Through the widget settings in the Field View section on the right.
      • Changing the Value directly with either hex or decimal values.
      • Double-clicking on any individual bit.

    • Press the INA233EVM icon to trigger a conversion in triggered mode.

      • This requires Immediate Write to be set.

  • Turning on Auto Read only updates registers in the register map, and not the plots in the Results Data section.
    • Leaving Auto Read on while collecting data for plots can interfere with data collection timing.

  • The register bit fields are displayed with all 56 bits by default, but can be truncated for readability, select the Truncate Bitfields check box to truncate the bit fields to 24 bits.

  • For questions about a register or register bit field, select the INA233EVM icon. Check the device data sheet for further information about individual registers or register bit fields.
  • For convenience, register settings can be saved and loaded back later to any device with the same register map. To do this, go to File > Register Data, as shown in Figure 3-12.
    INA233EVM Save and Load Register Settings Figure 3-12 Save and Load Register Settings
    • Press the Read All Registers button after loading data to update the register map with the actual device values.