SLUUCQ5 March   2023 BQ28Z620

 

  1. 1BQ28Z620EVM 1- to 2-Series Li-Ion Battery Pack Manager Evaluation Module
    1. 1.1 Features
      1. 1.1.1 Kit Contents
      2. 1.1.2 Ordering Information
      3. 1.1.3 Documentation
      4. 1.1.4 BQ28Z620 and BQ294502 Circuit Module Performance Specification Summary
    2. 1.2 BQ28Z620EVM Quick Start Guide
      1. 1.2.1 Items Needed for EVM Setup and Evaluation
      2. 1.2.2 Software Installation
      3. 1.2.3 EVM Connections Module Connections
    3. 1.3 Battery Management Studio
      1. 1.3.1 Starting the Program
      2. 1.3.2 Registers Screen
      3. 1.3.3 Data Memory Screen
      4. 1.3.4 Calibration Screen
        1. 1.3.4.1 Voltage Calibration
        2. 1.3.4.2 Temperature Calibration
        3. 1.3.4.3 Current Calibration
      5. 1.3.5 Authentication Screen
      6. 1.3.6 Chemistry Selection
      7. 1.3.7 Programming Screen
        1. 1.3.7.1 Programming the Flash Memory
        2. 1.3.7.2 Generating The Golden Image
      8. 1.3.8 Advanced Comm I2C Screen
      9. 1.3.9 Watch Screen
    4. 1.4 Circuit Module Physical Layouts and Bill of Materials
      1. 1.4.1 Board Layout
      2. 1.4.2 Bill of Materials
      3. 1.4.3 Schematic
      4. 1.4.4 Testing Fuse-Blowing Circuit
  2. 2Revision History

1.3.8 Advanced Comm I2C Screen

Press the Advanced Comm I2C button to select the Advanced Comm I2C window. This tool provides access to parameters using I2C and Manufacturing Access commands. See Figure 1-11. The transaction log screen shows the history of sent commands.

Note:

I2C commands are sent in Little Endian format.

GUID-6BED9EA9-994D-44BD-871D-5F707F86F0D8-low.pngFigure 1-11 Advanced Comm I2C Screen

Examples:

Reading an I2C Command.

  • Read chemical ID (0x 0006).
    • Make sure the device is unsealed
    • Write 0x00 using BlockDataControl() command (0x61) to enable block data flash control. (wr 0x61 0x00)
    • Write to mac address 0x3e Command 0x06 0x00 (see Figure 1-11).
    • Read 4 bytes.
    • The result returned is 0x10 0x12, which is little endian for chem id 1210.

Sending a MAC Gauging() to enable IT via ManufacturerAccess().

  • With Impedance Track™ disabled, send Gauging() (0x0021) to ManufacturerAccess().
    • Write to mac address 0x3e command 0x21 0x00 (see Figure 1-11).