SLVSMB0 June   2026

 

  1.   1
  2.   Description
  3.   Features
  4.   4
  5. Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specifications
    4. 1.4 Device Information
  6. Hardware
    1. 2.1 Hardware Requirements
    2. 2.2 Connecting the BQ27Z855 Circuit Module to a Battery Pack
    3. 2.3 EVM Jumpers and Terminal Block Description
  7. Software
    1. 3.1 System Requirements
    2. 3.2 Software Installation
    3. 3.3 Updating Firmware
    4. 3.4 Troubleshooting Unexpected Dialog Boxes
  8. Using bqStudio
    1. 4.1 Starting the Program
    2. 4.2 Setting Programmable BQ27Z855 Options
    3. 4.3 Configuring the Integrated Linear Battery Charger
  9. Calibrating Gauge Measurements
    1. 5.1 Voltage Calibration
    2. 5.2 Current Calibration
  10. Chemical ID
    1. 6.1 Chemical ID Selection Process
    2. 6.2 Hardware Requirements and Setup
    3. 6.3 Logging Data in bqStudio
    4. 6.4 GPCChem Tool
    5. 6.5 Programming a Chemical ID
    6. 6.6 Further Resources for Chemical ID Process
  11. Learning Cycle and Golden Image
    1. 7.1 Learning Cycle Process Description
    2. 7.2 Data Memory Configuration
    3. 7.3 Learning Cycle Steps
    4. 7.4 Low Temperature Optimization
    5. 7.5 Creating the Golden Image File
    6. 7.6 Programming the Golden Image File
  12. Gauge Communication
    1. 8.1 Advanced Communication in bqStudio
    2. 8.2 Standard Data Commands
    3. 8.3 Manufacturer Access Commands
    4. 8.4 Further Resources on Gauge Communication
  13. BQ27Z855-Based Circuit Module
    1. 9.1 Circuit Module Connections
    2. 9.2 Pin Descriptions
  14. 10Hardware Design Files
    1. 10.1 Schematic
    2. 10.2 Bill of Materials (BOM)
    3. 10.3 PCB Layouts
  15. 11Additional Information
    1.     Trademarks

Starting the Program

Run bqStudio from the desktop. The window consists of a tools panel at the top, and other child windows that can be hidden, docked in various positions or allowed to float as separate windows. When bqStudio first starts up the Gauge Dashboard window, the Registers window, and Data Memory window should be seen in the main window. Registers, Data Memory, Commands, and other windows can be added to the main window by clicking on the corresponding icon in the tools panel at the top of the main window. Data should appear initially in the Gauge Dashboard, Registers and Data Memory sections. The Refresh (single time scan) or the Scan (continuous scan) buttons can be clicked to update the data in the Registers and Data Memory windows. Continuous scan is enabled when the Scan checkbox is highlighted green and disabled when the Scan checkbox is not highlighted. The continuous scanning interval can be set with the stopwatch icon next to the Scan button. When the stopwatch icon is clicked, a drop-down menu appears, and the desired scanning interval can be selected. The scan interval value shows up next to the stopwatch icon. The Registers page can also be used to collect a log file. To start a log file the “Start Log” button can be pressed, then the desired file name and file location can be chosen. The log file will periodically log everything present in the Registers page.

BQ27Z855EVM Registers Screen Figure 4-1 Registers Screen

Figure 4-1 shows the main bqStudio window. Additional Flag and Control Status data can be viewed at the bottom of the registers window.