SLUUCH4A October   2021  – October 2023 BQ27Z746

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1 Software Setup
    1. 1.1 System Requirements
    2. 1.2 Software Installation
  5. 2 Troubleshooting Unexpected Dialog Boxes
  6. 3 Hardware Setup
    1. 3.1 Hardware Requirements
    2. 3.2 Connecting the BQ27Z746 Circuit Module to a Battery Pack
    3. 3.3 EVM Jumpers Description
  7. 4 Using bqStudio
    1. 4.1 Starting the Program
    2. 4.2 Setting Programmable BQ27Z746 Options
  8. 5 Calibrating Gauge Measurements
    1. 5.1 Voltage Calibration
    2. 5.2 Current Calibration
  9. 6 Protections
    1. 6.1 Protector Calibration in bqStudio
    2. 6.2 Protector Threshold Process
  10. 7 Chemical ID
    1. 7.1 Chemical ID Selection Process Description
    2. 7.2 Hardware Requirements and Setup
    3. 7.3 Logging Data in bqStudio
    4. 7.4 GPCChem Tool
    5. 7.5 Programming a Chemical ID
    6. 7.6 Further Resources for Chemical ID Process
  11. 8 Learning Cycle and Golden Image
    1. 8.1 Learning Cycle Process Description
    2. 8.2 Data Memory Configuration
    3. 8.3 Learning Cycle Steps
    4. 8.4 Low Temperature Optimization
    5. 8.5 Creating the Golden Image File
    6. 8.6 Programming the Golden Image File
  12. 9 Gauge Communication
    1. 9.1 Advanced Communication in bqStudio
    2. 9.2 Standard Data Commands
    3. 9.3 Manufacturer Access Commands
    4. 9.4 Further Resources on Gauge Communication
  13. 10BQ27Z746-Based Circuit Module
    1. 10.1 Circuit Module Connections
    2. 10.2 Pin Descriptions
  14. 11Circuit Module Physical Layout, Bill of Materials, and Schematic
    1. 11.1 Board Layout
    2. 11.2 Schematic
    3. 11.3 Bill of Materials
    4. 11.4 BQ27Z746 Circuits Module Performance Specification Summary
  15.   Revision History

4.2 Setting Programmable BQ27Z746 Options

The BQ27Z746 comes configured per the default settings detailed in the BQ27Z746 Technical Reference Manual. Ensure that the settings are correctly changed to match the pack and application for the BQ27Z746 solution being evaluated.

Note: The correct setting of these options is essential for best performance. Configure these settings using the Data Memory window seen in the main bqStudio window (Figure 5-2).
GUID-20211019-SS0I-NTKS-WRT5-HQGHX05BHZRC-low.png Figure 4-2 Data Memory Screen

To read all of the data from the BQ27Z746, click 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 5-2 to export and import .gg.csv files. The auto export button enables gg files to be exported periodically at intervals. This feature 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 affected on the gauge. Use the read command to read back all of the data written to the gauge to verify the changes were made. The filter/search field enables the user to search for a particular parameter in the data memory content.

Note: 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.