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 2016-2017 Microchip Technology Inc. DS70005260B

BM62 Evaluation Board (EVB)

User’s Guide

DS70005260B-page 2  2016-2017 Microchip Technology Inc.

Information contained in this publication regarding device

applications and the like is provided only for your convenience

and may be superseded by updates. It is your responsibility to

ensure that your application meets with your specifications.

MICROCHIP MAKES NO REPRESENTATIONS OR

WARRANTIES OF ANY KIND WHETHER EXPRESS OR

IMPLIED, WRITTEN OR ORAL, STATUTORY OR

OTHERWISE, RELATED TO THE INFORMATION,

INCLUDING BUT NOT LIMITED TO ITS CONDITION,

QUALITY, PERFORMANCE, MERCHANTABILITY OR

FITNESS FOR PURPOSE. Microchip disclaims all liability

arising from this information and its use. Use of Microchip

devices in life support and/or safety applications is entirely at

the buyer’s risk, and the buyer agrees to defend, indemnify and

hold harmless Microchip from any and all damages, claims,

suits, or expenses resulting from such use. No licenses are

conveyed, implicitly or otherwise, under any Microchip

intellectual property rights unless otherwise stated.

Note the following details of the code protection feature on Microchip devices:

• Microchip products meet the specification contained in their particular Microchip Data Sheet.

• Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the

intended manner and under normal conditions.

• There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our

knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data

Sheets. Most likely, the person doing so is engaged in theft of intellectual property.

• Microchip is willing to work with the customer who is concerned about the integrity of their code.

• Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not

mean that we are guaranteeing the product as “unbreakable.”

Code protection is constantly ev inuously improving the code protection features ofolving. We at Microchip are committed to cont our

products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts

allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.

Microchip received ISO/TS-16949:2009 certification for its worldwide

headquarters, design and wafer fabrication facilities in Chandler and

Tempe, Arizona; Gresham, Oregon and design centers in California

and India. The Company’s quality system processes and procedures

are for its PIC

MCUs and dsPIC

DSCs, K

code hopping

devices, Serial EEPROMs, microperipherals, nonvolatile memory and

analog products. In addition, Microchip’s quality system for the design

and manufacture of development systems is ISO 9001:2000 certified.

QUALITY MANAGEMENT S

YSTEM

CERTIFIED BY DNV

====

ISO/TS 16949 ==

====

Trademarks

The Microchip name and logo, the Microchip logo, AnyRate, AVR,

AVR logo, AVR Freaks, BeaconThings, BitCloud, CryptoMemory,

CryptoRF, dsPIC, FlashFlex, flexPWR, Heldo, JukeBlox, K

logo, Kleer, LANCheck, LINK MD, maXStylus,

maXTouch, MediaLB, megaAVR, MOST, MOST logo, MPLAB,

OptoLyzer, PIC, picoPower, PICSTART, PIC32 logo, Prochip

Designer, QTouch, RightTouch, SAM-BA, SpyNIC, SST, SST

Logo, SuperFlash, tinyAVR, UNI/O, and XMEGA are registered

trademarks of Microchip Technology Incorporated in the U.S.A.

and other countries.

ClockWorks, The Embedded Control Solutions Company,

EtherSynch, Hyper Speed Control, HyperLight Load, IntelliMOS,

mTouch, Precision Edge, and Quiet-Wire are registered

trademarks of Microchip Technology Incorporated in the U.S.A.

Adjacent Key Suppression, AKS, Analog-for-the-Digital Age, Any

Capacitor, AnyIn, AnyOut, BodyCom, chipKIT, chipKIT logo,

CodeGuard, CryptoAuthentication, CryptoCompanion,

CryptoController, dsPICDEM, dsPICDEM.net, Dynamic Average

Matching, DAM, ECAN, EtherGREEN, In-Circuit Serial

Programming, ICSP, Inter-Chip Connectivity, JitterBlocker,

KleerNet, KleerNet logo, Mindi, MiWi, motorBench, MPASM, MPF,

MPLAB Certified logo, MPLIB, MPLINK, MultiTRAK, NetDetach,

Omniscient Code Generation, PICDEM, PICDEM.net, PICkit,

PICtail, PureSilicon, QMatrix, RightTouch logo, REAL ICE, Ripple

Blocker, SAM-ICE, Serial Quad I/O, SMART-I.S., SQI,

SuperSwitcher, SuperSwitcher II, Total Endurance, TSHARC,

USBCheck, VariSense, ViewSpan, WiperLock, Wireless DNA, and

ZENA are trademarks of Microchip Technology Incorporated in the

U.S.A. and other countries.

SQTP is a service mark of Microchip Technology Incorporated in

the U.S.A.

Silicon Storage Technology is a registered trademark of Microchip

Technology Inc. in other countries.

GestIC is a registered trademark of Microchip Technology

Germany II GmbH & Co. KG, a subsidiary of Microchip Technology

Inc., in other countries.

All other trademarks mentioned herein are property of their

respective companies.

Reserved.

ISBN: 978-1-5224-1255-7

 2016-2017 Microchip Technology Inc. DS70005260B-page 3

EU Declaration of Conformity

This declaration of conformity is issued by the manufacturer.

The development/evaluation tool is designed to be used for research and development in a laboratory environment. This

development/evaluation tool is not a Finished Appliance, nor is it intended for incorporation into Finished Appliances that are

made commercially available as single functional units to end users under EU EMC Directive 2004/108/EC and as supported by

the European Commission's Guide for the EMC Directive 2004/108/EC (8th February 2010).

This development/evaluation tool complies with EU RoHS2 Directive 2011/65/EU.

This development/evaluation tool, when incorporating wireless and radio-telecom functionality, is in compliance with the

essential requirement and other relevant provisions of the R&TTE Directive 1999/5/EC and the FCC rules as stated in the

declaration of conformity provided in the module datasheet and the module product page available at www.microchip.com.

For information regarding the exclusive, limited warranties applicable to Microchip products, please see Microchip’s standard

terms and conditions of sale, which are printed on our sales documentation and available at www.microchip.com.

Signed for and on behalf of Microchip Technology Inc. at Chandler, Arizona, USA.

Object of Declaration: BM62 Evaluation Board

Automotive Networking Development Board User’s Guide

DS70005260B-page 4  2016-2017 Microchip Technology Inc.

NOTES:

BM62 EVB USER’S GUIDE

 2016-2017 Microchip Technology Inc. DS70005260B - Page 5

Table of Contents

Chapter 1. Introduction

1.1 Kit Contents .................................................................................................. 13

1.2 BM62 EVB Features ..................................................................................... 15

Chapter 2. Hardware

2.1 Hardware Features ....................................................................................... 17

Chapter 3. Getting Started

3.1 Requirements ............................................................................................... 25

3.2 Getting Started with the BM62 EVB ............................................................. 26

3.3 Application Demonstration ........................................................................... 26

3.4 Configuring BM62 Stereo Audio Module ...................................................... 28

3.5 Updating EEPROM Parameters ................................................................... 45

3.6 Updating Flash Code .................................................................................... 50

3.7 BLE Demonstration ...................................................................................... 52

3.8 NFC Demonstration ...................................................................................... 57

Appendix A. Schematics

A.1 Reference Schematics ................................................................................. 59

BM62 EVB

User’s Guide

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NOTES:

BM62 EVB USER’S GUIDE

 2016-2017 Microchip Technology Inc. DS70005260B - Page 7

Preface

INTRODUCTION

This chapter contains general information that will be useful to know before using the

BM62 Evaluation Board (EVB). Items discussed in this chapter include:

•Document Layout

•Conventions Used in this Guide

•Recommended Reading

•The Microchip Web Site

•Development Systems Customer Change Notification Service

•Customer Support

•Document Revision History

DOCUMENT LAYOUT

This document describes how to use the BM62 EVB, as a development tool to emulate

and debug firmware on a target board. This user’s guide is composed of the following

chapters:

•Chapter 1. “Introduction” provides an overview of the BM62 EVB and its

features.

•Chapter 2. “Hardware” provides hardware details of the BM62 EVB.

•Chapter 3. “Getting Started” provides information about how to establish the

Bluetooth

connection using the BM62 EVB.

•Appendix A. “Schematics” provides the BM62 EVB reference schematics.

NOTICE TO CUSTOMERS

All documentation becomes dated, and this manual is no exception. Microchip tools and

documentation are constantly evolving to meet customer needs, so some actual dialogs

and/or tool descriptions may differ from those in this document. Please refer to our web site

(www.microchip.com) to obtain the latest documentation available.

Documents are identified with a “DS” number. This number is located on the bottom of each

page, in front of the page number. The numbering convention for the DS number is

“DSXXXXXXXXA”, where “XXXXXXXX” is the document number and “A” is the revision level

of the document.

For the most up-to-date information on development tools, see the MPLAB

X IDE online help.

Select the Help menu, and then Topics to open a list of available online help files.

BM62 EVB User’s Guide

DS70005260B - Page 8  2016-2017 Microchip Technology Inc.

CONVENTIONS USED IN THIS GUIDE

This manual uses the following documentation conventions:

DOCUMENTATION CONVENTIONS

Description Represents Examples

Italic characters Referenced books MPLAB IDE User’s Guide

Emphasized text ...is the only compiler...

Initial caps A window the Output window

A dialog the Settings dialog

A menu selection select Enable Programmer

Quotes A field name in a window or

dialog

“Save project before build”

Underlined, italic text with

right angle bracket

A menu path File > Save

Bold characters A dialog button Click OK

A tab Click the Power tab

Text in angle brackets < > A key on the keyboard Press <Enter>, <F1>

Plain Courier New Sample source code #define START

Filenames autoexec.bat

File paths c:\mcc18\h

Keywords _asm, _endasm, static

Command-line options -Opa+, -Opa-

Bit values 0, 1

Constants 0xFF, ‘A’

Italic Courier New A variable argument file.o, where file can be any

valid filename

Square brackets [ ] Optional arguments mcc18 [options] file

[options]

Curly brackets and pipe

character: { | }

Choice of mutually exclusive

arguments; an OR selection

errorlevel {0|1}

Ellipses... Replaces repeated text var_name [, var_name...]

Represents code supplied by

user

void main (void)

{ ...

}

Notes

A Note presents information

that we want to re-emphasize,

either to help you avoid a

common pitfall or to make you

aware of operating differences

between some device family

members. A Note can be in a

box, or when used in a table

or figure, it is located at the

bottom of the table or figure.

Note 1: This is a note used in a

table.

Note: This is a standard

note box.

CAUTION

This is a caution note.

Preface

 2016-2017 Microchip Technology Inc. DS70005260B - Page 9

RECOMMENDED READING

This user’s guide describes how to use the BM62 EVB. The following Microchip

document is available and recommended as supplemental reference resources.

BM62/64 Data Sheet (DS60001403)

Refer to this document for detailed information on BM62 stereo audio module.

Reference information found in this data sheet includes:

• BM62 stereo audio module features and pin configurations

• Electrical Specifications

• Reference Circuits

THE MICROCHIP WEB SITE

Microchip provides online support via our web site at: http://www.microchip.com. This

web site makes files and information easily available to customers. Accessible by most

Internet browsers, the web site contains the following information:

•Product Support – Data sheets and errata, application notes and sample

programs, design resources, user’s guides and hardware support documents,

latest software releases and archived software

•General Technical Support – Frequently Asked Questions (FAQs), technical

support requests, online discussion groups, Microchip consultant program

member listings

•Business of Microchip – Product selector and ordering guides, latest Microchip

press releases, listings of seminars and events; and listings of Microchip sales

offices, distributors and factory representatives

BM62 EVB User’s Guide

DS70005260B - Page 10  2016-2017 Microchip Technology Inc.

DEVELOPMENT SYSTEMS CUSTOMER CHANGE NOTIFICATION SERVICE

Microchip’s customer notification service helps keep customers current on Microchip

products. Subscribers will receive e-mail notification whenever there are changes,

updates, revisions or errata related to a specified product family or development tool of

interest.

To register, access the Microchip web site at www.microchip.com, click on Customer

Change Notification and follow the registration instructions.

The Development Systems product group categories are:

•Compilers – The latest information on Microchip C compilers and other language

tools

•Emulators – The latest information on the Microchip in-circuit emulator, MPLAB

REAL ICE™

•In-Circuit Debuggers – The latest information on the Microchip in-circuit

debugger, MPLAB ICD 3

•MPLAB X IDE – The latest information on Microchip MPLAB X IDE, the

Windows

Integrated Development Environment for development systems tools

•Programmers – The latest information on Microchip programmers including the

PICkit™ 3 development programmer

CUSTOMER SUPPORT

Users of Microchip products can receive assistance through several channels:

• Distributor or Representative

• Local Sales Office

• Field Application Engineer (FAE)

• Technical Support

Customers should contact their distributor, representative or Field Application Engineer

(FAE) for support. Local sales offices are also available to help customers. A listing of

sales offices and locations is included in the back of this document.

Technical support is available through the web site at: http://support.microchip.com.

Preface

 2016-2017 Microchip Technology Inc. DS70005260B - Page 11

DOCUMENT REVISION HISTORY

Revision A (May 2016)

This is the initial released version of this document.

Revision B (January 2017)

This revision includes the following updates:

• Updated 3.2 “Getting Started with the BM62 EVB”

• Updated 3.4 “Configuring BM62 Stereo Audio Module”

• Updated 3.7 “BLE Demonstration”

• Added 3.8 “NFC Demonstration”

Minor updates to text and formatting were incorporated throughout the document.

BM62 EVB User’s Guide

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NOTES:

BM62 EVB USER’S GUIDE

 2016-2017 Microchip Technology Inc. DS70005260B - Page 13

Chapter 1. Introduction

Thank you for purchasing the BM62 Evaluation Board (EVB). This document provides

detailed information about the Microchip BM62 EVB.

The BM62 EVB enables the user to evaluate and demonstrate the functionality of the

BM62 stereo audio module. The BM62 EVB includes an integrated configuration and

programming interface for plug-and-play capability, and also has status LEDs which

enable rapid prototyping and faster time to market.

Along with the BM62 EVB, software tools and applications are provided to demonstrate

the Bluetooth connections to the on-board BM62 stereo audio module and to optionally

configure or program it.

This chapter includes the following topics:

1.1 “Kit Contents”

1.2 “BM62 EVB Features”

1.1 KIT CONTENTS

The BM62 EVB kit contains the following items, as illustrated in Figure 1-1:

• One BM62 EVB, which contains the BM62SPKS1MC2 module

• One micro-USB cable

• Two speaker cables

• One 5V DC power adapter

BM62 EVB User’s Guide

DS70005260B - Page 14  2016-2017 Microchip Technology Inc.

FIGURE 1-1: BM62 EVB KIT CONTENTS

Note: If you are missing any part of the BM62 EVB kit, contact a Microchip sales

office for assistance. A list of Microchip offices for sales and service is

provided on the back page of this document.

Introduction

 2016-2017 Microchip Technology Inc. DS70005260B - Page 15

1.2 BM62 EVB FEATURES

The following are key features of the BM62 EVB:

• The BM62 EVB includes a BM62 stereo audio module, qualified for Bluetooth 4.2

specifications

• The BM62 EVB can be powered by a PC host using the micro-USB cable or by

connecting a Li-Ion battery

• Built-in 3W Class-D stereo audio amplifier

• Built-in Near Field Communication (NFC)

• Stereo audio output for high-quality audio

• Easy access to I/O pins

• RoHS compliant

Figure 1-2 illustrates the top view of the BM62 EVB with the following components:

1. BM62SPKS1MC2 module

2. Three status LEDs

3. NFC tag

4. Li-Ion battery connector (JP19/JP20)

5. USB connector (P1)

6. USB to UART converter (MCP2200)

7. GPIO header (J1)

8. Mode switch (SW12)

9. Audio control buttons, Multi-Function Button (MFB) and Reset button

10. Slide switch (SW6)

11. External MCU header (J6)

12. 3W Class-D amplifier output connector (J3 and J4)

13. External audio amplifier connector (JP26)

14. Internal/External audio amplifier switch (SW46)

15. External MCU selection switch (SW48 and SW49)

16. Auxiliary input 3.5 mm jack (P7)

17. Microphone input 3.5 mm jack (P5)

18. Stereo output 3.5 mm jack (P6)

BM62 EVB User’s Guide

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FIGURE 1-2: BM62 EVB (TOP VIEW)

BM62 EVB USER’S GUIDE

 2016-2017 Microchip Technology Inc. DS70005260B - Page 17

Chapter 2. Hardware

This chapter describes hardware features of the BM62 EVB. The BM62 EVB includes

a range of peripheral components, refer to Figure 2-1.

FIGURE 2-1: BM62 EVB BLOCK DIAGRAM

2.1 HARDWARE FEATURES

The following list provides the details of each component in the BM62 EVB. For detailed

information about the location of these components, refer to Figure 1-2.

2.1.1 Power Supply

Users can supply power to the BM62 EVB using either of the following options:

• Li-Ion battery

• USB (PC host over USB)

Note: While using the BM62 EVB for codec testing and application, it is

recommended to use Li-Ion battery due to limitations of the power drawn

from the USB port of the PC.

BM62 EVB User’s Guide

DS70005260B - Page 18  2016-2017 Microchip Technology Inc.

2.1.2 USB connectivity

The BM62 EVB connects to the PC host using a USB cable. The USB signals are

converted to/from UART by the MCP2200.

2.1.3 Switches and Push buttons

The functions of the switches and push buttons on the BM62 EVB are:

• MFB – Push to turn on/off the BM62 stereo audio module

• SW4 – Skip the audio track backward

• SW5 – Skip the audio track forward

• SW9 – Increase volume

• SW10 – Decrease volume

• SW11 – Reset button

• SW12 – Mode switch

• SW46 – Button for 3W Class-D stereo amplifier signal connection

• SW48 and SW49 – Buttons for external MCU connection

Table 2-1 provides the settings of the Mode switch SW12 to configure the BM62 EVB

in various operating modes.

TABLE 2-1: SWITCH SW12 DETAILS

Mode Switch SW12 Switch 12 PIN Definition

Write Flash

1. ON (P2_0: LOW)

2. ON (P2_4: LOW)

3. ON (EAN: HIGH)

Test Mode

(Write EEPROM)

1. ON (P2_0: LOW)

2. OFF (P2_4: HIGH)

3. OFF (EAN: LOW)

Application Mode

1. OFF (P2_0: HIGH)

2. OFF (P2_4: HIGH)

3. OFF (EAN: LOW)

Hardware

 2016-2017 Microchip Technology Inc. DS70005260B - Page 19

Table 2-2 provides the switch SW46 details for 3W Class-D stereo amplifier signal con-

nection.

TABLE 2-2: SWITCH SW46 DETAILS

Table 2-3 provides switch SW48/SW49 details of the signals and buttons connections

to the BM62 module and the external MCU.

TABLE 2-3: SWITCH SW48/SW49 DETAILS

Mode Switch SW46 Switch 46 PIN Definition

On-board 3W Class-D

stereo amplifier signal

connection (default

on-board stereo ampli-

fier)

1. ON (Amplifier power)

2. ON (L-CH signal)

3. ON (R-CH signal)

4. ON (Amplifier enable)

External stereo amplifier

connection

1. OFF (Amplifier power)

2. OFF (L-CH signal)

3. OFF (R-CH signal)

4. OFF (Amplifier enable)

Mode Switch SW48/SW49 SW48/SW49 PIN Definition

Connect buttons and

signals to module

(default)

SW48

1. ON (MFB)

2. ON (Volume down)

3. ON (Play/Pause)

4. ON (Volume up)

SW49

1. ON (Previous Track)

2. ON (Next Track)

3. ON (NFC trigger)

4. ON (NC)

BM62 EVB User’s Guide

DS70005260B - Page 20  2016-2017 Microchip Technology Inc.

2.1.4 LED

The functions of the three LEDs on BM62 EVB are listed as follows:

• LED1 – Indicates the Bluetooth connection status (UI configuration dependent)

• LED2 – Indicates the Bluetooth connection status (UI configuration dependent)

• LED3 – User defined (UI configuration dependent)

2.1.5 Jumpers and Headers

The following are jumpers and headers (J1, J6, JP19, JP20, JP22, JP23, JP26)

available on the BM62 EVB.

Figure 2-2 illustrates the GPIO header J1 and Table 2-4 provides the pin details and

descriptions.

Disconnect Buttons and

signals to module (for

external MCU usage)

SW48

1. OFF (MFB)

2. OFF (Volume down)

3. OFF (Play/Pause)

4. OFF (Volume up)

SW49

1. OFF (Previous Track)

2. OFF (Next Track)

3. OFF (NFC trigger)

4. OFF (NC)

Mode Switch SW48/SW49 SW48/SW49 PIN Definition

Hardware

 2016-2017 Microchip Technology Inc. DS70005260B - Page 21

FIGURE 2-2: GPIO HEADER J1

The header J6 provides the interface to connect an external MCU to the BM62 EVB

over UART. Figure 2-3 illustrates the external MCU header J6 and Table 2-5 provides

the pin details and descriptions.

TABLE 2-4: GPIO HEADER J1

Part Number Pin Description

J1 1 P0_0

2 P3_0

3 P2_0

4 P1_5

5 P0_4

6 P0_1

7 P2_4

8 P0_2

9 P0_3

10 P0_5

11 P2_7

12 P2_4

BM62 EVB User’s Guide

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FIGURE 2-3: EXTERNAL MCU HEADER J6

Figure 2-4 illustrates the battery connector JP20 and JP19, and Table 2-6 provides the

pin details and descriptions.

FIGURE 2-4: BATTERY CONNECTOR JP20 AND JP19

TABLE 2-5: EXTERNAL MCU HEADER J6

Part Number Pin Description

JP2 1 NC

2 HCI_RXD

3 NC

4 HCI_TXD

5 GND

6 GND

7 NC

8 RST_N

9 NC

10 MFB (for RX_IND)

11 NFC

12 P0_0 (for TX_IND)

Note: The Li-Ion battery can be connected to JP20 or JP19 of the BM62 EVB.

TABLE 2-6: BATTERY CONNECTOR JP20 AND JP19

Part Number Pin Description

JP20 1 BAT_IN

2 GND

JP19 1 GND

2 BAT_IN

Hardware

 2016-2017 Microchip Technology Inc. DS70005260B - Page 23

The header JP22 is used for connecting a microphone to the BM62 EVB. Figure 2-5

and Table 2-7 provides the JP22 pin details and descriptions.

FIGURE 2-5: MIC JP22

Figure 2-6 illustrates the audio output header JP23 and Table 2-8 provides the pin

details and descriptions.

FIGURE 2-6: AUDIO OUTPUT HEADER JP23

TABLE 2-7: MIC JP22

Part Number Pin Description

JP22 1 MIC_P1

2 GND

3 MIC_N1

TABLE 2-8: AUDIO OUTPUT HEADER JP23

Part Number Pin Description

JP23 1 AOHPL

2 AOHPM

3 AOHPR

BM62 EVB User’s Guide

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Figure 2-7 illustrates the external amplifier header JP26 and Table 2-9 provides the pin

details and descriptions.

FIGURE 2-7: EXTERNAL AMPLIFIER HEADER JP26

TABLE 2-9: EXTERNAL AMPLIFIER HEADER JP26

Part Number Pin Description

JP26 1 EXT_AMP_EN

2 SPKR

3 AGND

4 SPKL

5 AMP_POW

BM62 EVB USER’S GUIDE

 2016-2017 Microchip Technology Inc. DS70005260B - Page 25

Chapter 3. Getting Started

This chapter describes how to establish a Bluetooth connection between the BM62

EVB and a host device. It also demonstrates the process of updating the parameters

using various tools.

This chapter includes the following topics:

3.1 “Requirements”

3.2 “Getting Started with the BM62 EVB”

3.3 “Application Demonstration”

3.4 “Configuring BM62 Stereo Audio Module”

3.5 “Updating EEPROM Parameters”

3.6 “Updating Flash Code”

3.7 “BLE Demonstration”

3.1 REQUIREMENTS

The following hardware and software components are required for getting started with

the BM62 EVB.

3.1.1 Hardware Requirements

• BM62 EVB

• Bluetooth enabled smartphone:

- Android™ device with Android 4.3 or later version

- iOS: iPhone

4S or later version (with BLE support)

• Windows

host PC with USB port

• Speaker, microphone or headset

• Micro-USB cable

3.1.2 Software Requirements

Download the latest firmware and corresponding tools from the Microchip web site at:

www.microchip.com/BM62.

• User Interface tool

• DSP tool

• Mass Production EEPROM Tool (MPET)

• Flash update tool

• Flash code

• EEPROM tool

• UART command set tool

•mBIoT Utility app, available at Apple Store for iPhone

and at Google

Play™ Store for Android™

BM62 EVB User’s Guide

DS70005260B - Page 26  2016-2017 Microchip Technology Inc.

3.2 GETTING STARTED WITH THE BM62 EVB

To establish a Bluetooth connection between the BM62 EVB and a host device,

perform the following actions:

1. Set switch SW12 to Application mode, as illustrated in Figure 3-1.

FIGURE 3-1: SW12 IN APPLICATION MODE

2. Connect a speaker to the audio output connector (J3 and J4) of the BM62 EVB.

3. Connect the BM62 EVB to a PC through a micro-USB cable for the power supply.

LED2 (red) will turn on.

4. On the BM62 EVB, long press the MFB button to turn on the Bluetooth. Both

LED1 (blue) and LED2 (red) will blink together. Then, continue to press the MFB

button (approximately 5 seconds) until both the LEDs blink alternately. This LED

behavior indicates that the BM62 EVB is in discoverable mode.

5. Turn on the Bluetooth on a host device (PC or smartphone), and it will display a

list of discoverable Bluetooth devices. The BM62 EVB is displayed as

“Dual_SPK” or “LE_Dual_SPK”. Select the device to establish the connection.

6. LED1 (blue) will blink faster, and it indicates that the BM62 EVB is paired with the

host device.

7. Once the connection is established, LED1 (blue) will blink twice at regular inter-

vals. It will display as “connected” in the Bluetooth settings of the smartphone.

With the default settings, the BM62 Stereo Audio module enables Advanced

Audio Distribution Profile (A2DP) for audio playback and Audio Video Remote

Control Profile (AVRCP) for player control.

3.3 APPLICATION DEMONSTRATION

3.3.1 Speaker Audio Demonstration

In this demonstration, the user can stream audio on the BM62 EVB using a host device

(PC or smartphone). Perform the following actions for the audio demonstration. Refer

to Figure 3-2.

1. Establish the connection between the BM62 EVB and a host device, using the

procedure listed in 3.2 “Getting Started with the BM62 EVB”.

2. Once the connection between the BM62 EVB and the host device is established,

open the audio source on the host device. Microchip recommends using a media

player (for example, Windows

Media Player, iTunes

, or Android™).

3. Start the audio stream on the media player. Both LED1 (blue) and LED2 (red) will

blink once at regular intervals during the audio playback.

Note: The user can also power the board by connecting a Li-Ion battery to JP19

or JP20 on the BM62 EVB.

Note: “Dual_SPK” is used for Bluetooth classic and “LE_Dual_SPK” is used for

BLE devices.

Getting Started

 2016-2017 Microchip Technology Inc. DS70005260B - Page 27

The audio control buttons are used to:

- Control the volume of audio output (long press VOL+ or VOL- button)

- Go to the previous track (short press REV button)

- Go to the next track (short press FWD button)

- Start/stop playing the current track (short press PLAY button)

FIGURE 3-2: BM62 EVB AUDIO CONTROL BUTTONS

3.3.2 HSP/HFP Demonstration

In this demonstration, the user can explore the Headset Profile (HSP) or Hands-Free

Profile (HFP) setting to receive an incoming voice call from a paired smartphone. Per-

form the following actions for demonstration. Refer to Figure 3-2.

1. Establish a connection between the BM62 EVB and a host device using the pro-

cedure listed in 3.2 “Getting Started with the BM62 EVB”.

2. Connect the PC headset/microphone (with two-plugs) to the BM62 EVB’s audio

output connector (P6) and audio input connector (P5), respectively.

3. Initiate a call from another phone to the smartphone that is paired with the BM62

EVB. The A2DP stream pauses and the ringtone is played on the headset. LED1

(blue) blinks three times at regular intervals.

4. Press the MFB button on the BM62 EVB to accept the incoming call. LED1 (blue)

and LED2 (red) will blink three times at regular intervals.

BM62 EVB User’s Guide

DS70005260B - Page 28  2016-2017 Microchip Technology Inc.

3.4 CONFIGURING BM62 STEREO AUDIO MODULE

The BM62 EVB can be configured and various parameters can be customized using

the UI tool and DSP tool, and then the parameters are saved in a file. Using the MPET

tool, the saved files are merged into *.ipf and then this merged file is programmed

into the EEPROM. After EEPROM is programmed, power cycle the BM62 EVB to see

the effect of the customized parameters.

3.4.1 UI Tool Configuration

The User Interface (UI) tool is a configuration tool which enables the user to change

the parameters of the BM62 stereo audio module. To configure the UI parameters,

perform the following actions:

1. Open the UI configuration tool and click OK to configure the UI parameters

(Figure 3-3).

FIGURE 3-3: UI TOOL

2. In the UI configuration tool, click Load (Figure 3-4).

FIGURE 3-4: UI CONFIGURATION TOOL

Note: Download and install the UI tool, which is available on the Microchip web

site: www.microchip.com/BM62. For this demonstration

UITool_IS206x_012_DualModeSPK1.1_v1.03 is used.

Getting Started

 2016-2017 Microchip Technology Inc. DS70005260B - Page 29

3. From the Open window, select the default UI parameter text file (provided with

the UI tool) for the BM62 stereo audio module, and then click Open (Figure 3-5).

FIGURE 3-5: LOADING DEFAULT UI PARAMETERS

4. After selecting the UI parameters, select “BM62” from the IC Package drop-down

list and then click Edit (Figure 3-6).

FIGURE 3-6: EDIT UI PARAMETERS

BM62 EVB User’s Guide

DS70005260B - Page 30  2016-2017 Microchip Technology Inc.

5. In the Main Feature dialog, the user can enable or disable the Supported Profile

and audio line-in function Button and set the following parameters, as illustrated

in Figure 3-7.

a) Select the “UART Command” check box which allows the module to be con-

trolled by the MCU through the UART interface.

b) Select the “Ind.1” check box to enable the external audio amplifier.

c) Click Next.

FIGURE 3-7: MAIN FEATURE SETTINGS

Getting Started

 2016-2017 Microchip Technology Inc. DS70005260B - Page 31

6. The System and Functional Settings dialog with various options (tabs) is dis-

played to configure the parameters. In the Sys. Setup2 tab, in the Indication 1

Setting section, enable External Amplifier Indication, as illustrated in

Figure 3-8. Click Help to get more detailed information.

FIGURE 3-8: ENABLE EXTERNAL AMPLIFIER INDICATION

BM62 EVB User’s Guide

DS70005260B - Page 32  2016-2017 Microchip Technology Inc.

7. After setting up the parameters, click Finish. A notification is displayed to check

the EEPROM size on the system. Click OK (Figure 3-9).

FIGURE 3-9: EEPROM NOTIFICATION

8. Click Save to save these UI parameters as a .txt file (Figure 3-10).

FIGURE 3-10: SAVING UI PARAMETERS

Getting Started

 2016-2017 Microchip Technology Inc. DS70005260B - Page 33

9. From the Save As window, select the file location and then click Save

(Figure 3-11).

FIGURE 3-11: SAVE AS WINDOW

10. After saving the UI parameters, click Exit.

BM62 EVB User’s Guide

DS70005260B - Page 34  2016-2017 Microchip Technology Inc.

3.4.2 DSP Tool Configuration

The DSP configuration tool provides the visual interface to configure the DSP-related

parameters for the voice and audio signal processing functions.To configure the DSP

parameters, perform the following actions:

1. Open the DSP tool. A dialog displays various options (tabs) to configure the

parameters, as illustrated in Figure 3-12.

FIGURE 3-12: DSP TOOL SETTINGS

Note: Download and install the DSP tool, which is available on the Microchip web

site: www.microchip.com/BM62. For this demonstration

DSPTool_IS206x_012_DualModeSPK1.1_v1.06 is used.

Getting Started

 2016-2017 Microchip Technology Inc. DS70005260B - Page 35

2. From the Voice Function tab, set the parameters as illustrated in Figure 3-13.

FIGURE 3-13: DSP VOICE FUNCTION SETTING

BM62 EVB User’s Guide

DS70005260B - Page 36  2016-2017 Microchip Technology Inc.

3. From the Audio Function tab, set the parameters as illustrated in Figure 3-14.

FIGURE 3-14: DSP AUDIO FUNCTION SETTING

Getting Started

 2016-2017 Microchip Technology Inc. DS70005260B - Page 37

4. Click Save to save these DSP parameters as .txt file (Figure 3-15).

FIGURE 3-15: SAVING DSP PARAMETERS

BM62 EVB User’s Guide

DS70005260B - Page 38  2016-2017 Microchip Technology Inc.

5. After saving the DSP parameters, from the notification pop up click OK

(Figure 3-16). Click Exit to exit the DSP tool settings.

FIGURE 3-16: SAVE NOTIFICATION

Getting Started

 2016-2017 Microchip Technology Inc. DS70005260B - Page 39

3.4.3 MPET Tool Configuration

The MPET tool is used to merge the UI and the DSP parameters and generate a patch

file (.ipf) or binary file (.bin). To configure the MPET tool, perform the following

actions:

1. Open the MPET tool and then click Next to continue with the configuration

settings (Figure 3-17).

FIGURE 3-17: MPET TOOL SETTING

2. Select UI Patch Only to merge the UI and the DSP parameters and then click

Next as illustrated in Figure 3-18.

Note: Download and install the MPET tool, which is available on the Microchip

web site: www.microchip.com/BM62. For this demonstration

MPET_V2.1.29.4804 is used.

Note: For the UI parameter settings, refer to 3.4.1 “UI Tool Configuration”, and

for the DSP parameter settings, refer to 3.4.2 “DSP Tool Configuration”.

BM62 EVB User’s Guide

DS70005260B - Page 40  2016-2017 Microchip Technology Inc.

FIGURE 3-18: MERGE UI AND DSP PARAMETERS

3. Click Browse to load the default .bin file (provided with the MPET tool). From

the Open window, select the default .bin file and then click Open (Figure 3-19).

Getting Started

 2016-2017 Microchip Technology Inc. DS70005260B - Page 41

FIGURE 3-19: LOADING DEFAULT BIN FILE

4. The bin file description displays. Click Next (Figure 3-20).

FIGURE 3-20: DEFAULT BIN FILE SETTING

BM62 EVB User’s Guide

DS70005260B - Page 42  2016-2017 Microchip Technology Inc.

5. Click the “+” button to load the UI and the DSP parameters (.txt file) into the

MPET tool to merge with the EEPROM table and then click Next, as illustrated

in Figure 3-21.

FIGURE 3-21: CUSTOMIZED SETTINGS TO MERGE

6. Select an Output File path to create the merged EEPROM table (.ipf file), and

then click Next (Figure 3-22).

Product specificaties

Merk:	Microchip
Categorie:	Niet gecategoriseerd
Model:	BM62

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