SBOU302A June   2023  – December 2023 INA740A , INA740B , INA745A , INA745B , INA780A , INA780B

 

  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
    4. 1.4 Device Information
  6. 2Hardware
    1. 2.1 Quick Start Setup
    2. 2.2 EVM Operation
      1. 2.2.1 Current Sensing Operation
        1. 2.2.1.1 Detailed Setup
    3. 2.3 Circuitry
      1. 2.3.1 Current Sensing IC
      2. 2.3.2 Input Signal Path
      3. 2.3.3 Digital Circuitry
        1. 2.3.3.1 I2C
    4.     General Texas Instruments High Voltage Evaluation (TI HV EVM) User Safety Guidelines
  7. 3Software
    1. 3.1 Setup
      1. 3.1.1 Driver Installation
      2. 3.1.2 Firmware
        1. 3.1.2.1 Firmware Debug
      3. 3.1.3 GUI Setup and Connection
        1. 3.1.3.1 Initial Setup
        2. 3.1.3.2 GUI to EVM Connection
    2. 3.2 GUI Operation
      1. 3.2.1 Homepage Tab
      2. 3.2.2 Registers Tab
      3. 3.2.3 Results Data Tab
    3. 3.3 Direct EVM USB Communication
      1. 3.3.1 Standard USB Read and Write Operations
      2. 3.3.2 Collect Data Through the USB BULK Channel
  8. 4Hardware Design Files
    1. 4.1 Schematics
      1. 4.1.1 SENS108 (INA740AEVM, INA740BEVM, INA741EVM)
      2. 4.1.2 SENS109 (INA745AEVM, INA745BEVM, INA746EVM)
      3. 4.1.3 SENS119 (INA780AEVM, INA780BEVM, INA781EVM)
    2. 4.2 PCB Layout
      1. 4.2.1 SENS108 (INA740AEVM, INA740BEVM, INA741EVM)
      2. 4.2.2 SENS109 (INA745AEVM, INA745BEVM, INA746EVM)
      3. 4.2.3 SENS119 (INA780AEVM, INA780BEVM, INA781EVM)
    3. 4.3 Bill of Materials
      1. 4.3.1 SENS108 (INA740-INA741EVM), SENS109 (INA745-INA746EVM), SENS119 (INA780-INA781EVM)
  9. 5Additional Information
    1. 5.1 Trademarks
  10. 6Related Documentation
  11. 7Revision History

3.1.3.2 GUI to EVM Connection

To connect the GUI to the EVM, follow these steps:

  1. Setup and launch the GUI as described in Initial Setup.
    1. Check to make sure that the EVM connected to the GUI.
  2. Close the README.md file page to initiate the connection. If successful, then the text Hardware Connected is visible near the bottom left corner of the GUI.
GUID-A9CACE31-DAA5-4FA5-BEF5-558816589B3F-low.png Figure 3-4 Hardware Connected
  1. A green indicator with the device bit type (either 16 bit or 20 bit) appears and the text DEVICE CONNECTED is visible near the top left of the GUI.
    GUID-4666975C-B291-4A8C-BC3F-0B4390643656-low.png Figure 3-5 Device Type Connected
  2. From the Select Device drop-down menu, select the specific EVM to be used.
  3. A green indicator with the device type and the text DEVICE CONNECTEDis also be visible near the top left of the GUI.
    GUID-D405A644-B368-489C-91CA-953BBED65FD7-low.png Figure 3-6 Device Connected
  4. The user needs to update the SW0 (pin A0) and SW1 (pin A1) field values to the values selected on the EVMs SW0 and SW1 address select switches.
  5. If the text Hardware Connected and DEVICE CONNECTED does not show in the GUI, then long-press the RESET button on the EVM to try again.
    1. If that option does not work, then check different hardware COM ports under Options > Serial Port.
      GUID-20201130-CA0I-NZ21-NMCG-GMFJ7CD5W4XM-low.svg Figure 3-7 Change Serial Port
  6. If the hardware still does not connect, then make sure the correct GUI/EVM combination is being used.
    1. If the user is using the correct GUI/EVM combination, then reprogram the firmware of the SCB as described in Firmware Debug.
    2. Many connectivity issues can be addressed by doing one of the following:
      1. Long-press the RESET button on the EVM with the EVM and SCB connected to each other.
        • Refreshing the GUI can also sometimes help.
      2. Connect the EVM to a different USB port.
        • Avoid using long cables and USB hubs.
        • If using a desktop PC, then try a USB port on the back.