SBOU241E April   2020  – August 2022 INA228 , INA229 , INA237 , INA238 , INA239

 

  1.   SBOU241 Abstract
  2. 1Trademarks
  3.   General Texas Instruments High Voltage Evaluation (TI HV EVM) User Safety Guidelines
  4. 2Overview
    1. 2.1 Kit Contents
    2. 2.2 Related Documentation From Texas Instruments
  5. 3Hardware
    1. 3.1 Features
  6. 4Operation
    1. 4.1 Quick Start Setup
    2. 4.2 EVM Operation
      1. 4.2.1 Setup
        1. 4.2.1.1 Driver Installation
        2. 4.2.1.2 Firmware
          1. 4.2.1.2.1 Firmware Debug
        3. 4.2.1.3 GUI Setup and Connection
          1. 4.2.1.3.1 Initial Setup
          2. 4.2.1.3.2 GUI to EVM Connection
      2. 4.2.2 GUI Operation
        1. 4.2.2.1 Homepage Tab
        2. 4.2.2.2 Configuration Tab
        3. 4.2.2.3 Registers Tab
        4. 4.2.2.4 Results Data Tab
      3. 4.2.3 Current Sensing Operation
        1. 4.2.3.1 Detailed Setup
      4. 4.2.4 Direct EVM USB Communication
        1. 4.2.4.1 Standard USB Read and Write Operations
        2. 4.2.4.2 Collect Data Through the USB BULK Channel
      5. 4.2.5 PAMB Compatibility
  7. 5Circuitry
    1. 5.1 Current Sensing IC
    2. 5.2 Input Signal Path
    3. 5.3 Digital Circuitry
      1. 5.3.1 I2C (INA228, INA237, INA238)
      2. 5.3.2 SPI (INA229, INA239)
  8. 6Schematics, PCB Layout, and Bill of Materials
    1. 6.1 Schematics
      1. 6.1.1 SENS063 (INA228EVM, INA237EVM, INA238EVM)
      2. 6.1.2 SENS064 (INA229EVM, INA239EVM)
    2. 6.2 PCB Layout
      1. 6.2.1 SENS063 (INA228EVM, INA237EVM, INA238EVM)
      2. 6.2.2 SENS064 (INA229EVM, INA239EVM)
    3. 6.3 Bill of Materials
      1. 6.3.1 SENS063 (INA228EVM, INA237EVM, INA238EVM)
      2. 6.3.2 SENS064 (INA229EVM, INA239EVM)
  9. 7Revision History
4.2.1.2.1 Firmware Debug

If the firmware must be manually reinstalled for any reason, follow these steps to reinstall the firmware. Make sure the EVM is connected to the SCB.

  1. First, see if the GUI can program the firmware manually.
    1. Plug in the SCB controller to the PC
    2. Launch the GUI
    3. It is possible that the MCU has already entered Device Firmware Update (DFU) mode. If so, the GUI may notify you and try to update the firmware to the latest version.
    4. If it does not update automatically, go to File > Program Device...
  2. If step 1 is unsuccessful (or if the Program Device button is grayed out), manually configure the MCU on the SCB Controller to be in DFU Mode. This can be done through either of the below methods with the SCB Controller powered on:
    1. Through software:
      • Send the command 'bsl' on the SCB's USB Serial (COM) port.
    2. Though hardware:
      • For safety, turn off and disconnect all load sources and external voltages.
      • While shorting the two test points labeled DFU (shown in Figure 4-3) with a pair of tweezers (or wire), press and release the RESET button.
        Figure 4-3 Test Points Used to Enter DFU Mode Manually
      • If you are using the PAMB board instead, these test points are placed near PK1 and PK2.

With the MCU in DFU mode, the firmware can now be uploaded through the method outlined in Step 1.