SLUUBU0A June   2018  – July 2022 BQ27Z561

 

  1.   BQ27Z561EVM-011 EVM Single-Cell Impedance Track™ Technology
  2.   Trademarks
  3. 1Features
    1. 1.1 Kit Contents
  4. 2BQ27Z561-Based Circuit Module
    1. 2.1 Circuit Module Connections
    2. 2.2 Pin Description
  5. 3Circuit Module Physical Layout, Bill of Materials and Schematic
    1. 3.1 Board Layout
    2. 3.2 Schematic
    3. 3.3 Bill of Material
    4. 3.4 BQ27Z561 Circuits Module Performance Specification Summary
  6. 4EVM Hardware and Software Setup
    1. 4.1 System Requirements
    2. 4.2 Software Installation
  7. 5Troubleshooting Unexpected Dialog Boxes
  8. 6Hardware Connection
    1. 6.1 Connecting the BQ27Z561 Circuit Module to a Battery Pack
    2. 6.2 Description of EVM Jumpers
  9. 7Operation
    1. 7.1 Starting the Program
    2. 7.2 Setting Programmable BQ27Z561 Options
      1. 7.2.1 Important Data Memory Parameters to Change
    3. 7.3 Setting the Chemistry
  10. 8Related Documentation from Texas Instruments
  11. 9Revision History

7.2 Setting Programmable BQ27Z561 Options

The BQ27Z561 comes configured per the default settings detailed in the BQ27Z561 data sheet. Ensure that the settings are correctly changed to match the pack and application for the BQ27Z561 solution being evaluated.

IMPORTANT: The correct setting of these options is essential to get the best performance. The settings can be configured using the Data Memory window seen in the main bqStudio window (Figure 7-2).

GUID-2322C3A9-14FA-4EE9-AD5B-87DBFE018FFE-low.jpg Figure 7-2 Data Memory Screen

To read all the data from the BQ27Z561, click on the Read All button in the Data Memory window. For ease of configuration, a text file with a .gg.csv extension can be extracted, modified, and imported back on the device. Use the export and import buttons as seen in Figure 7-2 to export and import .gg.csv files. The auto export button enables .gg.csv files to be exported periodically at intervals. This is useful when debugging issues with the gauge. A write command is necessary if a .gg.csv file is imported to ensure that all changes made on the .gg.csv file are effected on the gauge. The read command is used to read back all of the data written to the gauge so that the changes made can be verified. The filter/search field enables the user to search for a particular parameter in the data memory content.

IMPORTANT: Do not make modifications to the .gg.csv file using Microsoft® Excel® as it makes changes to the file, which bqStudio rejects. Make sure to use a text editor like notepad or similar to edit a .gg.csv file.