SBOU124B march   2012  – july 2023 INA230

 

  1.   1
  2.   INA230EVM Evaluation Board and Software Tutorial
  3.   Trademarks
  4. 1Overview
    1. 1.1 INA230EVM Kit Contents
    2. 1.2 Related Documentation from Texas Instruments
  5. 2INA230EVM Hardware
    1. 2.1 Theory of Operation for INA230 Hardware
    2. 2.2 Signal Definitions of H1 (10-Pin Connector Socket)
      1. 2.2.1 Theory of Operation for SM-USB-DIG Platform
  6. 3INA230EVM (Rev A) Hardware Setup
    1. 3.1 Electrostatic Discharge Warning
    2. 3.2 Connecting the Hardware
    3. 3.3 Connecting Power
    4. 3.4 Connecting the USB Cable to the SM-USB-DIG Platform
    5. 3.5 INA230EVM Default Jumper Settings
    6. 3.6 INA230EVM Features
      1. 3.6.1 J2: I2C VS Control Setting
      2. 3.6.2 J3 and J4: I2C Address Hardware Setting (A0)
      3. 3.6.3 J5 and J6: I2C Address Hardware Setting (A1)
      4. 3.6.4 External I2C Lines and Terminal Block T1
      5. 3.6.5 VIN+ and VIN– Input Filter (R1, R2, and C1)
      6. 3.6.6 Shunt Monitor Configuration and Terminal Blocks T3 and T4
  7. 4INA230EVM Software Setup
    1. 4.1 Operating Systems for the INA230EVM Software
    2. 4.2 Software Installation
  8. 5INA230EVM Software Overview
    1. 5.1 Starting the INA230EVM Software
    2. 5.2 Configuring the INA230EVM Software
      1. 5.2.1 I2C Address Selection
      2. 5.2.2 Configure Operating Mode
      3. 5.2.3 Set Conversion Times
      4. 5.2.4 Set Configuration Register
      5. 5.2.5 Configuring the Alert Pin
    3. 5.3 Using the INA230EVM Software
      1. 5.3.1 INA230 Bus Voltage, Shunt Voltage, Current, and Power Reading Bar
      2. 5.3.2 Calculation and Theory of Operation
      3. 5.3.3 Register Tab
      4. 5.3.4 Graph Tab
      5. 5.3.5 Auto-Write and the Supply Voltage
  9. 6INA230EVM Documentation
    1. 6.1 Schematic
    2. 6.2 PCB Layout
    3. 6.3 Bill of Materials
  10. 7Revision History

3.6.4 External I2C Lines and Terminal Block T1

The I2C communication lines on the INA230EVM are tied to two sources: the internal I2C communication lines from the SM-USB-DIG and the terminal block T1. If the user wants to add external signals separate from the SM-USB-DIG, simply disconnect the SM-USB-DIG from the INA230EVM board and hook up the necessary SDA, SCL, and GND lines. Also, remember to apply an external supply to the lines that is compatible with the I2C communication device being used.

Note:

Failure to disconnect the SM-USB-DIG while using external I2C communication can cause damage to the SM-USB-DIG or any external communication devices that are connected.