ST STSW-L9961BMS Manuel utilisateur

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Quick Start Guide

for

STSW-L9961BMS

Software package for the STEVAL-L99615C kit -

L9961 industrial battery management system

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STSW-L9961BMS Software package

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• Software package specifically designed for the STEVAL-L99615C

kit to demonstrate the capabilities of the L9961 industrial BMS IC

• Includes the L9961 driver component, along with its register map

and related basic APIs

• Application demos exploiting the key-features of the L9961 ICs

• Architecture compatible with STM32Cube Firmware BSP

specification

• Use of a serial communication terminal to output data

• Contains demonstration project released for:

• STM32CubeIDE v.1.13.1

• EWARM (IAR) v. 9.20

• uVision (Keil) v. 5.38

Key topics of the

STSW-L9961BMS Software package

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Main SW functional layers are:

1. Hardware abstraction divided in

•STM32CubeG0 HAL and LL Hardware

Abstraction Layer for the STM32G0

microcontroller

•Board Support Package (BSP) library layer

containing the drivers of:

• the L9961 component device

• the STEVAL-L99615C expansion board

• the NUCLEO-G071RB board

2. Application

•Battery status monitoring demonstrating the

acquisition of voltage, current and temperature

from a battery pack made up of 5 cells

•Coulomb counting mechanism monitoring the

charges flowing through the battery cells

STSW-L9961BMS Software Architecture

STEVAL-L99615C

STM32CubeG0 HAL / LL

Hardware

Hardware

Abstraction

Applications &

demonstration

STM32G071RB L9961

STEVAL-L99615C

BSP

L9961

Component

NUCLEO-G071RB

BSP

Board Support

Package

Battery status monitoring

(voltage, current and temperature) Coulomb counting

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The Board Support Package comprises the following

drivers:

• the L9961 component device, including the register map of the

device, the basic functions to manage registers at bit level, the

write/read functions (single-register and multi-registers), and the APIs

to configure the device and manage its functionalities (i.e. Go-to-

Normal, Change Address, Enable/Disable CRC,…)

• the STEVAL-L99615C expansion board support package that

manages the configurations of the HW peripheral and GPIOs used by

the application

• the NUCLEO-G071RB Nucleo board support package containing a

set of minor functions connected to the microcontroller board

STSW-L9961BMS: BSP drivers

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STSW-L9961BMS

Application Demos

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• The STSW-L9961BMS package contains some

application demos that, when running within the

STEVAL-L99615C, allow for the evaluation of the

features and performances of the L9961

• The Application Demos are:

− App Demo #1 - Battery status monitoring

− App Demo #2 - Coulomb counting

• Each demo is selectable through the project

compiler options and exploits the serial

communication peripheral to return specific output

data

Application Demos

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• Different viewer layouts allow live monitoring of the acquired data and elaborated data. For the viewer

selection, you may use the keyboard 1, 2 and 3 keys or press the Nucleo blue button for a long time.

STSW-L9961BMS output data viewers

VT100 User Interface

data logger

CSV format data logger

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•The Application Demos and their related functions are

fully described in the Application User source and header

files of the project

•The project directory, in the Documentation sub-directory,

contains the STSW-L9961BMS.chm Doxygen file

•The Doxy file enriches the code with relevant information

about STSW-L9961BMS firmware architecture and

functionalities

STSW-L9961BMS Doxy file

ST Confidential

STEVAL-L99615C

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