Quick Start Guide - STMicroelectronics · • FFX ™ 100 dB SNR and dynamic range • I²C control with selectable device address • Digital gain +48 dB -80 dB with 0.125 dB/step

Version 1.0.0 (Oct. 05, 2016)

Quick Start GuideSmart Audio IN-OUT software expansion for STM32Cube

(SmartAcoustic1)

Quick Start Guide Contents2

SmartAcoustic1: Smart Audio IN-OUT software expansion for STM32Cube

Hardware and Software overview

Setup & Demo Examples

Documents & Related Resources

STM32 Open Development Environment: Overview

Sound terminal expansion board

Hardware Overview 3

X-NUCLEO-CCA01M1 Hardware Description

The X-NUCLEO-CCA01M1 is an expansion board based on STA350BW

Sound Terminal® device, a 2.1-channel high-efficiency digital audio

output system. It enables the output of digital audio streams to a

speakers pairs connected directly to the board and allows the evaluation

of the STA350BW digital audio output component.

Key Features• 2 channels of ternary PWM 2 x 50W @ 25 V 6 Ω

• FFX ™ 100 dB SNR and dynamic range

• I²C control with selectable device address

• Digital gain +48 dB -80 dB with 0.125 dB/step

• Two independent DRCs configurable as a dual-band anti-clipper

(B2DRC) or independent

• limiters/compressors

• I²S input interface

• 3 coefficients banks for EQ preset storing with fast recall via I²C

interface

• Up to 8 user-programmable biquads per channel

• Compatible with STM32 Nucleo boards

• Free comprehensive development firmware library and example

compatible with STM32Cube firmware

Key Product on board

STA350BW

An integrated solution of digital audio processing, digital amplifier

control, and FFX-power output stage, thereby creating a high-power

single-chip FFX™ solution comprising high-quality, high-efficiency,

and all-digital amplification

Speaker connectorsPower connectorSTA350BW

ST morpho connector

Arduino UNO R3 connector

Latest info available at www.st.com

X-NUCLEO-CCA01M1

MEMS Digital microphone expansion board

Hardware Overview 4

X-NUCLEO-CCA02M1 Hardware description

• The X-NUCLEO-CCA02M1 is an evaluation board

based on digital MEMS microphones. It has two

MP34DT01–M microphones soldered on the board

and offers the possibility to plug in additional

microphones using MP34DT01-based coupon

evaluation boards (STEVAL-MKI129V* or

STEVAL-MKI155V*).

• The X-NUCLEO-CCA02M1 enables the acquisition

and streaming of up to 4 microphones using both

I2S and SPI busses available on ST morpho

connector.

Key products on board

MP34DT01-M

Ultra-compact, low-power, omnidirectional,

digital MEMS microphone built with a capacitive

sensing element and an IC interface.

Latest info available at www.st.com

X-NUCLEO-CCA02M1

* is used as a wildcard character for related part number

MP34DT01-M USB connectorMicrophone coupon housings

ST morpho connector

Arduino UNO R3 connector

Smart Audio IN-OUT software expansionSoftware Overview 5

SmartAcoustic1 Software Description

SmartAcoustic1 is an expansion software package for

STM32Cube. The firmware runs on NUCLEO-F446RE and

includes drivers for X-NUCLEO-CCA01M1 digital audio output

system and X-NUCLEO-CCA02M1 digital MEMS microphones. It

includes middleware for audio DSP, performing acoustic Beam

Forming, Echo Cancellation, and Source Localization. The

expansion is built on STM32Cube software technology to ease

portability across different STM32 microcontrollers. The software

package runs with a host PC system connected using a USB

cable and showcases basic demonstration of the firmware

capabilities.

Key features

• osxAcousticBF Real-time beam forming software expansion for

STM32Cube

• osxAcousticEC Real-time acoustic echo cancellation software

expansion for STM32Cube

• osxAcousticSL Real-time sound source localization software

expansion for STM32Cube

• Compatible with the X-NUCLEO-CCA01M1, an expansion board

based on the STA350BW Sound Terminal® 2.1-channel high-

efficiency digital audio output system

• Compatible with the X-NUCLEO-CCA02M1, an evaluation board

based on digital MEMS microphones MP34DT01-M

• Compatible with STEVAL-MKI129Vx digital microphones evaluation

boards series

• Free, user-friendly license terms

• Sample implementation available on an X-NUCLEO-CCA01M1 or X-

NUCLEO-CCA02M1 expansion boards when connected to a

NUCLEO-F446RE board Latest info available at www.st.com

SmartAcoustic1

Overall Software Architecture

Hardware Abstraction Layer API Boards Support Packages

Drivers

Development Boards

X-NUCLEO-CCA01M1STM32 Nucleo Board

PDM to PCM

MiddlewareCMSIS

Utilities

HW Components

STM32 STA350BW

Applications

SmartAcoustic1

Beam

Forming

Echo

Cancellation

Source

Localization

MP34DT01-M

X-NUCLEO-CCA02M1







Setup & demo examplesHW prerequisites 7

• 1x STM32 Nucleo development board

(NUCLEO-F446RE)

• 1x Sound terminal expansion board based on STA350BW

(X-NUCLEO-CCA01M1)

• 1x Digital MEMS microphone expansion board

(X-NUCLEO-CCA02M1)

• 1x Microphone coupon board based on the MP45DT02 digital

MEMS microphone (STEVAL-MKI129V1)

• 1x (at least one) 8 Ω passive speaker to be connected to the

X-NUCLEO-CCA01M1 expansion board (two are required for

stereo audio reproduction)

• 2x USB type A to mini-B USB cable

• 1x Windows® (XP, Vista, 7, 8) - PC/Laptop

Mini USB Cable Speaker

NUCLEO F446RE

X-NUCLEO-CCA01M1 X-NUCLEO-CCA02M1

with STEVAL-MKI129V1

Boards stacking


SW prerequisites 8

• STSW-LINK009: ST-LINK/V2-1 USB driver

• SmartAcoustic1

• Copy the .zip file content into a folder on your PC. The package will contain source code example based only on NUCLEO-F446RE


USB connection

• Dual USB connection with the host PC.

• USB1 cable goes from Nucleo-F446RE to the PC: the board is recognized as

STMicroelectronics Virtual COM Port (ST-LINK/V2-1 USB driver must be installed,

available at www.st.com). This channel is used to exchange messages between a host

PC and the MCU unit and control the demo at runtime.

• USB2 cable is connected to X-NUCELEO-CCA02M1 board: the device is recognized

as a Standard USB microphone without the need of any PC driver. This channel is used

to stream audio toward the host PC.

9

USB1

USB2

10

Download & unpack

www.st.com

www.st.com

1

SmartAcoustic1

Select

2

3

FP-SNS-FLIGHT1 package structure

Docs

BSP, HAL and drivers

NDEF Library and BlueNRG

Application example

4

5

Compile/Flash and

Run the project

.\SMARTACOUSTIC1\Projects\STM32F446\Applications\OpenAudioDemo

Passive

Speaker

output

6

SmartAcoustic1

SmartAcoustic1

Terminal setup and demo

• Pressing the RESET button on

STM32Nucleo triggers the initialization

phase

• The software performs as an example this

sequence of operations:

1) Connect to the serial port specified by

the user

2) Retrieve a string that describe the

firmware version

3) Retrieve the currently running

algorithms

4) Activate beamforming only

5) Switch beamforming direction

6) Activate AEC only

7) Activate Source Localization and start

asking for the estimated direction

11


SmartAcoustic1:

• DB3005: Smart audio IN-OUT software expansion for STM32Cube – data brief

• UM2097: Getting started with the SmartAcoustic1 smart input-output audio software for STM32Cube – user manual

X-NUCLEO-CCA01M1:

• Gerber files, BOM, Schematic

• DB2756: Sound terminal expansion board based on STA350BW for STM32 Nucleo – data brief

• UM1979: Getting started with sound terminal expansion board based on STA350BW for STM32 Nucleo – user manual

X-NUCLEO-CCA02M1:

• Gerber files, BOM, Schematic

• DB2593: Digital MEMS microphones expansion board based on MP34DT01-M for STM32 Nucleo – data brief

• UM1900: Getting started with the digital MEMS microphones expansion board based on MP34DT01-M for STM32

Nucleo – user manual

12

All documents are available in the DESIGN tab of the related products webpage

Consult www.st.com for the complete list







STM32 Open Development Environment

Fast, affordable Prototyping and Development 14

• The STM32 Open Development Environment (ODE) consists of a set of stackable boards

and a modular open SW environment designed around the STM32 microcontroller family.

www.st.com/stm32ode

Function Packs

(FP)

STM32Cube

development software

STM32 Nucleo

expansion boards

(X-NUCLEO)

STM32 Nucleo

development boards

STM32Cube

expansion software

(X-CUBE)

Power supply

through USB or

external source

Integrated debugging

and programming

ST-LINK probe

STM32 microcontroller

Complete product range

from ultra-low power to high-performance

ST morpho extension header

STM32 Nucleo

Development Boards (NUCLEO)

• A comprehensive range of affordable development boards for all the STM32

microcontroller series, with unlimited unified expansion capabilities and integrated

debugger/programmer functionality.

15

www.st.com/stm32nucleo

Arduino™ UNO R3 extension headers

Move/ActuatePower InteractConnect

Sense

STM32 Nucleo

Expansion Boards (X-NUCLEO)

• Boards with additional functionality that can be plugged directly on top of the STM32

Nucleo development board directly or stacked on another expansion board.

16

DIL24 support for

new devices

Motion MEMS sensors

Environmental sensors

www.st.com/x-nucleo

Example of STM32 expansion board (X-NUCLEO-IKS01A1)


Software components

• STM32Cube software (CUBE) - A set

of free tools and embedded software bricks

to enable fast and easy development on

the STM32, including a Hardware

Abstraction Layer and middleware bricks.

• STM32Cube expansion software

(X-CUBE) - Expansion software provided

free for use with the STM32 Nucleo

expansion board and fully compatible with

the STM32Cube software framework. It

provides abstracted access to expansion

board functionality through high-level APIs

and sample applications.

17

www.st.com/x-cube

• Compatibility with multiple Development Environments - The STM32 Open Development

Environment is compatible with a number of IDEs including IAR EWARM, Keil MDK, and GCC-based

environments. Users can choose from three IDEs from leading vendors, which are free of charge and

deployed in close cooperation with ST. These include Eclipse-based IDEs such as Ac6 System

Workbench for STM32 and the MDK-ARM environment.

Tools& IDEs

Application examples

Hardware

SampleapplicationsApplications

IAREWARM,Keil MDK-ARM,GCC-basedIDEs(e.g. Ac6System Workbenchfor STM32)

STM32CubeHardware Abstraction Layer (HAL)

STM32Cubemiddleware

Upper level middleware

Middleware

HardwareAbstraction

STM32Cubeexpansion middleware

STM32 Nucleo expansion boards (X-NUCLEO)

STM32 Nucleo developer boards

OPEN LICENSE MODELS: STM32Cube software and sample applications are covered by a

mix of fully open source BSD license and ST licenses with very permissive terms.

www.st.com/stm32cube


Building block approach 18

The building blocks Your need Our answer

Move /

Actuate

Connect

Power

Sense

Process

Inertial modules, magnetometer

Proximity, microphone

Pressure, temperature, humidity

Bluetooth LE, Sub-GHz radio

NFC, Wi-Fi, GNSS

Energy management & battery

General-purpose microcontrollers

Stepper motor driver

DC & BLDC motor driver

Audio amplifier

COLLECT

TRANSMIT

ACCESS

CREATE

POWER

PROCESS

Software

Secure microcontrollers

Touch controller

Operation Amplifier

Accelerometer, gyroscope

Translate

Industrial input / output

www.st.com/stm32ode