SLVU957A September   2019  – November 2021 BQ76922

 

  1.   Trademarks
  2. 1Features
    1. 1.1 Kit Contents
    2. 1.2 Ordering Information
    3. 1.3 BQ76922EVM Circuit Module Performance Specification Summary
    4. 1.4 Required Equipment
  3. 2BQ76922EVM Quick Start Guide
    1. 2.1 Before You Begin
    2. 2.2 Quick Start
  4. 3Interface Adapter
  5. 4Battery Management Studio Software
    1. 4.1 System Requirements
    2. 4.2 Installing BQStudio
    3. 4.3 BQ76922 bqz File Installation
    4. 4.4 BQStudio Operation and Registers View
    5. 4.5 Commands
    6. 4.6 Data Memory
      1. 4.6.1 Entering, Saving, and Loading Configuration
      2. 4.6.2 OTP Programming
    7. 4.7 Calibration
    8. 4.8 Command Sequences
  6. 5BQ76922EVM Circuit Module Use
    1. 5.1 Cell Simulator
    2. 5.2 Evaluating with Load Current
    3. 5.3 Evaluating Charge and Discharge Currents
    4. 5.4 Evaluating with Simulated Current
    5. 5.5 Reducing the Cell Count
    6. 5.6 Connecting Cells
    7. 5.7 Connecting to a Host
    8. 5.8 Hardware Configuration
      1. 5.8.1 Configuration Jumpers
      2. 5.8.2 Unused Components
    9. 5.9 Configuration Register Programming
  7. 6BQ76922EVM Circuit Module Physical Construction
    1. 6.1 Board Layout
    2. 6.2 Bill of Materials
    3. 6.3 REACH Compliance
    4. 6.4 Schematic
  8. 7Related Documents from Texas Instruments
  9. 8Revision History

4.6 Data Memory

The data memory tool is used to configure the device. The device has both volatile registers and One Time Programmable (OTP) memory. Most evaluation can be performed without writing OTP. Configuration files may be saved and loaded later to resume evaluation. At power up, the device is configured from the OTP. On a new EVM, the OTP has only the REG0 and REG1 settings of the BQ76922, other locations are not programmed. Configuration can be entered in the volatile registers using the Data Memory tool. The Data Memory tool displays as a tab in the center pane of the BQStudio window. Figure 4-5 shows the initial data memory view with a device connected. Configuration settings are grouped into different functions accessed with buttons on the left side of the pane. The Calibration section is displayed on initial selection. Other functional sections can be displayed by clicking on the named button.

GUID-20210804-CA0I-7G2S-JKP9-LV9B3XDGT4CR-low.png Figure 4-5 Data Memory View