SLUUCD7A May   2021  – May 2026

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1 Features
    1. 1.1 Kit Contents
    2. 1.2 Ordering Information
  5. 2 BQ27427-Based Circuit Module
    1. 2.1 Circuit Module Connections
    2. 2.2 Pin Descriptions
  6. 3 Evaluation Module Physical Layout, Bill of Materials and Schematic
    1. 3.1 Board Layout
    2. 3.2 Bill of Materials
    3. 3.3 Schematic
    4. 3.4 BQ27427 Circuits Module Performance Specification Summary
  7. 4 EVM Hardware and Software Setup
    1. 4.1 Software Installation
  8. 5 Troubleshooting Unexpected Dialog Boxes
  9. 6 Hardware Connection
    1. 6.1 Connecting the BQ27427 Circuit Module to a Battery Pack
    2. 6.2 PC Interface Connection
  10. 7 Operation
    1. 7.1 Starting the Program
    2. 7.2 Setting Programmable BQ27427 Options
  11. 8 Calibration
    1. 8.1 Calibrating the BQ27427
    2. 8.2 Voltage Calibration
    3. 8.3 Board Offset Calibration
  12. 9 Advanced Communication I2C
    1. 9.1 I2C Communication
  13. 10Related Documentation
  14. 11Revision History

9.1 I2C Communication

I2C read/write operations serve as general-purpose communication tools (Figure 9-1).

BQ27427EVM Advanced Communication I2C Figure 9-1 Advanced Communication I2C
BQ27427EVM Parameter Q&A Screen Figure 9-2 Parameter Q&A Screen
BQ27427EVM Golden Image Output Screen Figure 9-3 Golden Image Output Screen
BQ27427EVM Gauge Programming Screen Figure 9-4 Gauge Programming Screen