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  • BQ769x2 Control Based on MSPM0 Through I2C

    • SLAAEB3A May   2023  – July 2024 MSPM0G3507 , MSPM0L1106 , MSPM0L1306

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  • BQ769x2 Control Based on MSPM0 Through I2C
  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Hardware Connection
  6. 3Software Structure and Important Functions
    1. 3.1 System Initialization
    2. 3.2 Low-Level Command Control
    3. 3.3 High-Level Function
  7. 4Test Result of Important Functions
    1. 4.1 Read Alarm Status
    2. 4.2 Read Safety Status
    3. 4.3 Read PF Status
    4. 4.4 Read Current
    5. 4.5 Read All Temperatures
    6. 4.6 Read All Voltages
  8. 5References
  9. 6Revision History
  10. IMPORTANT NOTICE
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Application Note

BQ769x2 Control Based on MSPM0 Through I2C

Abstract

The MSPM0 series microcontroller (MCU) portfolio offers a wide variety of 32-bit MCUs with ultra-low power and integrated analog and digital peripherals for sensing, measurement, and control applications. Reducing power consumption while performing complex real-time applications presents a major challenge for the recent embedded applications. This article was created to build a simple framework to help developers quickly setup the communication between MSPM0 and BQ769x2. Currently, the MSPM0 L series and G series are supported, and sample code is provided based on LP-MSPM0G3507 and LP-MSPM0L1306 LaunchPad™.

Trademarks

LaunchPad™ and Code Composer Studio™ are trademarks of Texas Instruments.

All trademarks are the property of their respective owners.

1 Introduction

The BQ769x2 is a highly-integrated and accurate battery-monitor device for 3-series to 16-series battery packs. The MSPM0L1306 and MSPM0G3507 devices are highly-integrated, ultra-low-power 32-bit MCU of the MSPM0 family. In practice, the BQ769x2 monitor can measure battery cell voltage, temperature, and current, and reports this information to the MCU(MSPM0) through an I2C interface. The MCU can then make decisions based on the information provided by the monitor. The device can enable and disable the FETs, control the cell balancing feature, and do various responses according to specific user needs.

This application note provides sample code for MSPM0 and BQ769x2. Online SDK demonstration code can be accessed from MSPM0L1306 and MSPM0G3507. The offline SDK file paths are: {MSPM0_SDK_INSTALL_DIR}\examples\nortos\LP_MSPM0L1306\demos\bq769x2_control_i2c and {MSPM0_SDK_INSTALL_DIR}\examples\nortos\LP_MSPM0G3507\demos\bq769x2_control_i2c.

 
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