SLUA790 November   2016 BQ34110 , BQ34Z100-G1 , BQ35100

 

  1.   Using I2C Communications With the bq34110, bq35100, and bq34z100-G1 Series of Gas Gauges
    1.     Trademarks
    2. 1 Example 1: Reading Cell Voltage
    3. 2 Example 2: Reading the Firmware Version
      1. 2.1 Standard I2C Commands
      2. 2.2 Extended I2C Commands
      3. 2.3 Control Subcommands
      4. 2.4 Data Flash Access for the bq34z100-G1
    4. 3 Data Flash Access for the bq34110 and bq35100
    5. 4 Summary
    6. 5 Glossary: Control-Bit-Sequence Definitions

2.1 Standard I2C Commands

We will use the Voltage as an example. Its command code is 08/09. Use the I2C Master Control Panel section to read the flash.

ENTER: Start Register 08, Number of Bytes to Read 2 and PRESS the Read button.

fig04_slua790.pngFigure 4. Standard I2C Command Reading Voltage

Byte swap the data and convert it to decimal. 3C8C is 15500 mV.