SLVUDW8 May   2026

 

  1.   1
  2.   Description
  3.   Features
  4.   4
  5. 1 Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specifications
    4. 1.4 Device Information
  6. 2 Hardware Setup
    1. 2.1 Hardware Requirements
    2. 2.2 Connecting the BQ27Z846 Circuit Module to a Battery Pack
    3. 2.3 EVM Jumpers and Terminal Block Description
  7. 3 Software Setup
    1. 3.1 System Requirements
    2. 3.2 Software Installation
    3. 3.3 Updating Firmware
    4. 3.4 Troubleshooting Unexpected Dialog Boxes
    5. 3.5 Using bqStudio
      1. 3.5.1 Starting the Program
      2. 3.5.2 Setting Programmable BQ27Z846 Options
  8. 4 Calibrating Gauge Measurements
    1. 4.1 Voltage Calibration
    2. 4.2 Current Calibration
  9. 5 Chemical ID
    1. 5.1 Chemical ID Selection Process
    2. 5.2 Hardware Requirements and Setup
    3. 5.3 Logging Data in bqStudio
    4. 5.4 GPCCHEM Tool
    5. 5.5 Programming a Chemical ID
    6. 5.6 Further Resources for Chemical ID Process
  10. 6 Learning Cycle and Golden Image
    1. 6.1 Learning Cycle Process Description
    2. 6.2 Data Memory Configuration
    3. 6.3 Learning Cycle Steps
    4. 6.4 Low Temperature Optimization
    5. 6.5 Creating the Golden Image File
    6. 6.6 Programming the Golden Image File
  11. 7 Gauge Communication
    1. 7.1 Advanced Communication in bqStudio
    2. 7.2 Standard Data Commands
    3. 7.3 Manufacturer Access Commands
    4. 7.4 Further Resources on Gauge Communication
  12. 8 BQ27Z846-Based Circuit Module
    1. 8.1 Circuit Module Connections
    2. 8.2 Pin Descriptions
  13. 9 Hardware Design Files
    1. 9.1 Board Layout
    2. 9.2 Schematic
    3. 9.3 Bill of Materials
  14. 10Additional Information
    1.     Trademarks
  15. 11Revision History

5.4 GPCCHEM Tool

Convert the .log file to a .csv file by renaming the file format. Create a blank .csv file and copy into the first, second, third, and fourth columns the time, voltage, current, and temperature, respectively. Verify that the units for each column are seconds, millivolts, milliamps, and Celsius. The first row can be names for each of the columns, which the tool skips assuming there is only one row of names before the data begins. Figure 5-4 is an example of the required .csv file formatting as well as the first few rows of data.

BQ27Z846 Cell Formatting for .csv Figure 5-4 Cell Formatting for .csv
  1. Save this created file with the name "roomtemp_rel_dis_rel.csv".
  2. Create a second file "config.txt" and write the following:
    1. ProcessingType = 2
    2. NumCellSeries = 1
    3. ElapsedTimeColumn = 0
    4. VoltageColumn = 1
    5. CurrentColumn = 2
    6. TemperatureColumn = 3
  3. Create a folder with any name. Put both the roomtemp_rel_dis_rel.csv and config.txt files in this folder, and convert the folder to a .zip file. Submit this .zip file to the GPC Tool through the web interface found on ti.com.

After processing, an e-mail with a report that indicates the results of the process of the tool is sent to the e-mail address you provided when logging into ti.com to use the GPC Tool. The report contains the selected ChemID and a list of additional ChemIDs that satisfy the "less than 3%" error criteria. For example, this report can be useful to verify that a ChemID used previously is still suitable. The report shows any formatting mistakes or other errors.