SLUUD64 December   2024 BQ41Z90

 

  1.   1
  2.   Description
  3.   Features
  4.   4
  5. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
      1. 1.4.1 Before You Begin
  6. 2BQ41Z90EVM Quick Start Guide
    1. 2.1 Items Needed for EVM Setup and Evaluation
    2. 2.2 Software Installation
    3. 2.3 EVM Connections
      1. 2.3.1 Jumper Description
    4. 2.4 Update Firmware
  7. 3Hardware
    1. 3.1 BQ41Z90 Production Calibration Guide
  8. 4Software
    1. 4.1 Battery Management Studio
      1. 4.1.1 Registers Screen
      2. 4.1.2 Setting Programmable BQ41Z90 Options
      3. 4.1.3 Calibration Screen
        1. 4.1.3.1 Voltage Calibration
        2. 4.1.3.2 Temperature Calibration
        3. 4.1.3.3 Current Calibration
      4. 4.1.4 Chemistry Screen
      5. 4.1.5 Firmware Screen
        1. 4.1.5.1 Programming the Flash Memory
        2. 4.1.5.2 Exporting the Flash Memory
      6. 4.1.6 Advanced Comm SMB Screen
  9. 5Hardware Design Files
    1. 5.1 BQ41Z90EVM Circuit Module Schematic
    2. 5.2 Circuit Module Physical Layouts
      1. 5.2.1 Board Layout
      2. 5.2.2 Schematic
    3. 5.3 Bill of Materials
  10. 6Additional Information
    1. 6.1 Trademarks
  11. 7Related Documentation from Texas Instruments

2.4 Update Firmware

Flashing FW on initial units.

  1. Download and install BQstudio, BQstudio appears as BatteryManagementStudio in the computers directory.
  2. Inside the BatteryManagementStudio folder there is a folder labeled "config". Place the "4190_0_01-bq41z90.bqz" file inside the config folder.
  3. Connect the communication cable to the SMBus port on the EV2400 and J7 on the BQ41z90EVM. The Jumpers on J28 and J29 need to be uninstalled.
  4. Launch BQstudio, the device does not automatically detect. Force open the 4190_0_01-bq41z90.bqz by selecting gauges and then selecting 4190_0_01-bq41z90.bqz and pressing Finish. A warning appears, press "ok".
  5. Go to the "Programming" tab on BQstudio, select "bq41z90_v0_01_build_1.sig.enc.bq.fs" and press program.
  6. The device is now programmed with the BQ41z90FW, the next time BQstudio is opened the device is automatically detected.

Find the latest firmware version in the appropriate BQ41Z90 folder on www.ti.com. Use the following steps to install the BQ41Z90 Battery Management Studio software:

  1. Run Battery Management Studio from the Start > Programs > Texas Instruments > Battery Management Studio menu sequence, or the Battery Management Studio shortcut.
  2. Follow the directions in Programming Screen, select the firmware .bq.fs file downloaded from www.ti.com, and click the Program button.
  3. Once programming is finished, the EVM is ready to use with the latest firmware.