ST STSW-L9961BMS Manual de usuario

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ST Confidential

Quick Start Guide

for

STSW-L9961BMS

Software package for the STEVAL-L99615C kit -

L9961 industrial battery management system

ST Confidential

STSW-L9961BMS Software package

ST Confidential

• 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

ST Confidential

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

ST Confidential

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

ST Confidential

STSW-L9961BMS

Application Demos

ST Confidential

• 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

ST Confidential

• 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

ST Confidential

•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

Kit Overview