Microchip Technology BM83 EVB User Manual

BM83 EVB

BM83 Bluetooth® Audio Development Board User's Guide

Introduction

The BM83 Bluetooth Audio Development Board (BM83 EVB) enables the user to evaluate and demonstrate the functionality of the BM83 audio module and IS2083BM System-on-Chip (SoC). This board is a complete, all-in-one solution to develop multiple Bluetooth audio applications including portable speakers and headphones. The BM83 EVB features an on-board PIC32 for Host MCU mode applications, an external codec to improve audio quality, a digital microphone to capture voice audio, indicator LEDs and buttons for ease of development.

In addition to the BM83 EVB, the IS2083 SDK and IS208x_Config_GUI_Tool (Config Tool) are provided to customize the audio processing settings.

Features

• BM83 module, qualified for Bluetooth 5.0 specifications

• On-board microcontroller (PIC32MX450F256L) for easy operation and feature demonstration

• Plug-in module (PIM) socket for external microcontroller (MCU)

• STMicroelectronics codec (STA369BW) Daughter Board

• Digital Microphone (Knowles’ SPH0641LU4H-1) Daughter Board

• J-Link 6-Pin Adapter Board for IS2083BM debugging

• On-board keypad matrix (audio control buttons) that can be controlled either by the BM83 module or the onboard PIC32 MCU, which makes it easy for playback control

• Aux-in, MIC-In, and Stereo out ports

• On-board thermistor

• 2 LEDs for the Bluetooth subsystem and various other LEDs configurable by the on-board MCU

• JTAG program/debug port, USB to UART port, XPRO header interfaces

• Li-ion battery connector, 15V DC power jack and USB power source

User Guide

DS50002902A-page 1

BM83 EVB

1. Quick References

1.1 Reference Documentation

For further study, refer to the following:

• BM83 Bluetooth® Stereo Audio Module Data Sheet

• IS2083 Bluetooth® Stereo Audio SoC Data Sheet

• IS2083 SDK User’s Guide (DS50002894)

• BM83 Host MCU Firmware Development Guide

• IS2083 Bluetooth® Audio Application Design Guide

• IS2083 SDK Debugger User’s Guide

• IS2083 Reference Design Application Note

Note: For a complete list of development support tools and documentation, visit http://www.microchip.com/BM83.

1.2 Hardware Requirements

• BM83 Bluetooth® Audio Development Board (BM83 EVB)

• BM83 module mounted on BM83 Carrier Board

• Bluetooth-enabled smartphone:

– Android™ device running on Android 4.3 or later version – iOS: iPhone® 4S or later version

• Windows® host PC with USB port

• Speaker, microphone or headset

• Type-A to Micro-B USB cable

• STA369BW Audio Daughter Board

• Digital Microphone Daughter Board

• 15V DC power adapter

• MPLAB® REAL ICE™/MPLAB ICD 3/PICkit™ 3

• J-Link 6-Pin Adapter Board

BM83 EVB

Quick References

1.3 Software Requirements

Note: For the following software tools and firmware files, refer to http://www.microchip.com/BM83.

• IS2083 firmware

• Host MCU firmware

• isUpdate tool

• Config GUI tool

• MPLAB Integrated Development Environment (MPLAB X IDE) tool

• Microchip Bluetooth Audio Application for smartphone

Note: MPLAB X IDE is available for download from Microchip website at: http://www.microchip.com/mplab/mplab-x-

ide.

User Guide

DS50002902A-page 4

1.4 Acronyms/Abbreviations

Table 1-1. Acronyms/Abbreviations

Acronyms/Abbreviations Description

A2DP Advanced Audio Distribution Profile

AAC Advanced Audio Codec

ADC Analog-to-Digital Converter

AEC Acoustic Echo Cancellation

AFH Adaptive Frequency Hopping

ANCS Apple Notification Center Service

API Application Programming Interfaces

AVRCP Audio/Video Remote Control Profile

AW Audio Widening

BDR Basic Data Rate

BER Bit Error Rate

BLE Bluetooth Low Energy

BOM Bill of Materials

BPF Band Pass Filter

BR Basic Rate

CVSD Continuous Variable Slope Delta

DAC Digital-to-Analog Converter

DFU Device Firmware Upgrade

DIS Device Information Service

DLE Data Length Extension

DPSK Differential Phase Shift Keying

DQPSK Differential Quadrature Phase Shift Keying

DR Receive Data

DSP Digital Signal Processor

DT Transmit Data

EDR Enhanced Data Rate

EMC Electromagnetic Compatibility

EVB Evaluation Board

FET Field Effect Transistor

GAP General Access Profile

GATT General Attribute Profile

GFSK Gaussian Frequency Shift Keying

GPIO General Purpose Input Output

GUI Graphical User Interface

HFP Hands-free Profile

HPF High Pass Filter

HSP Headset Profile

BM83 EVB

Quick References

User Guide

DS50002902A-page 5

...........continued

Acronyms/Abbreviations Description

HW Hardware

I2C/I2C Inter-Integrated Circuit

I2S/I2S Inter-IC Sound

IC Integrated Circuit

ICSP In-Circuit Serial Programming

IDE Integrated Development Environment

IF Intermediate Frequency

IPE Integrated Programming Environment

JTAG Joint Test Action Group

LDO Low-Dropout

LED Light Emitting Diode

LNA Low-Noise Amplifier

LPA Linear Power Amplifier

LSB Least Significant Bit

MAC Medium Access Control

MB DRC Multiband Dynamic Range Compression

MCLK Master Clock

MCU Microcontroller

MEMS Micro-Electro-Mechanical Systems

MFB Multi-function Button

Modem Modulator-demodulator

MPA Medium Power Amplifier

mSBC Modified Sub-band Coding

MSPK Multi-speaker

NR Noise Reduction

OTA Over-the-Air

PBAP Phone Book Access Profile

PCB Printed Circuit Board

PCM Pulse Code Modulation

PDM Pulse Density Modulation

PIM Plug-in Module

PLC Packet Loss Concealment

PMU Power Management Unit

POR Power-on Reset

PWM Pulse Width Modulation

RF Radio Frequency

RFS Receive Frame Sync

RoHS Restriction of Hazardous Substances

RSSI Received Signal Strength Indicator

RX Receiver

BM83 EVB

Quick References

User Guide

DS50002902A-page 6

...........continued

Acronyms/Abbreviations Description

SAR Successive Approximation Register

SBC Sub-band Coding

SCO Synchronous Connection-oriented

SDK Software Development Kit

SIG Special Interest Group

SNR Signal-to-Noise Ratio

SoC System-on-Chip

SPP Serial Port Profile

SW Software

TX Transmitter

UART Universal Asynchronous Receiver-Transmitter

UI User Interface

USB Universal Serial Bus

VB Virtual Bass Enhancement

VCO Voltage-controlled Oscillator

WDT Watchdog Timer

BM83 EVB

Quick References

User Guide

DS50002902A-page 7

2. Kit Overview

Host MCU (PIC32MX450F256L)

PIM Socket (External MCU)

15V DC Adapter (P200)

USB-UART Port (J600)

Power Switch (SW200)

MFB Button (SW701)

Bluetooth Module USB (J200)

Li-ion Battery Connector (J201)

Type-A USB (P400)

ICSP Header (J400)

BM83 JTAG Header (J301)

XPRO Header (J304)

STA369BW Audio Daughter Board

ANA MIC1(P500)

LINE_IN (P501)

I2S Header (J404, J405)

ANA MIC2 (P502)

Stereo Out (P503)

Carrier Board Interface (J300)

BM83 Carrier Board

BM83 Module

Digital Microphone Daughter Boards

Audio Control Buttons Header

(J700, J701, J702)

This section provides an overview of the BM83 EVB. The following figure illustrates the top view of the BM83 EVB with its components.

Figure 2-1. BM83 EVB Components

BM83 EVB

Kit Overview

2.1 Kit Contents

The BM83 EVB includes the following:

• One BM83 EVB that contains a BM83 module (BM83SM1-00AA) mounted on a BM83 Carrier Board

• One 15V DC power adapter

• One pair of speaker cables

• One Type-A to Micro-B USB cable

• One STA369BW Audio Daughter Board

• Two Digital Microphone Daughter Boards

• One J-link 6-pin Adapter Board

User Guide

DS50002902A-page 8

Figure 2-2. Kit Contents

BM83 EVB

STA369BW Audio Daughter Board

Digital Microphone Daughter Boards

Power Cable

BM83 Carrier Board

J-Link Adapter Board

Speaker Cable

Micro-B USB Cable

DC Power Adapter

BM83

Module

BM83 EVB

Kit Overview

Note: If any part of the BM83 EVB is missing, contact your Microchip sales office for assistance. A list of Microchip

offices for sales and service is provided on the back page of this document.

User Guide

DS50002902A-page 9

3. Hardware

SYS_PWR

LED2

AOHPR AOHPM

AOHPL

MIC1_P

MIC2_N

MIC_BIAS

UART

BAT_IN

Buttons and

Switches

MIC and

Bias Circuit

Audio

Input

Jack

Status LEDs

Power

Jack

15V

Adapter

ADC CH

16 MHz

Crystal

SPKR

SPKL

Thermistor

Li-Ion

Battery

Audio

Output

Jack

Aux-In Jack

USB to UART

(MCP2200)

3V35V

Regulator

ADAP_IN

Micro-B

USB

12 MHz

Crystal

Power

Switch

15V5V

15V

3V3

I/O

5V

3V3

LDO

5V

P3_4

Mode

Switch

Type-A USB

Audio

Input

Jack

MIC and

Bias Circuit

DMIC_CLK

Audio Daugh ter

Board

3.3 V

15 V

5

V

I2S

15 V

LED1

CPU JTAG

JTAG

XPRO

Header

I/O

AIRAIL

DMIC

1

L

/

R

DMIC

2

L

/

R

MIC1_N MIC2_P

BM83 Module on the

BM83 Carrier Board

External MCU

(PIC32MX450F256L)

/PIM Socket

Micro-B

USB

J-link

Adapter

Board

Bluetooth Audio Development Board

Regulator

STA369BW

Digital Microphone

Daugther Boards

This chapter describes the hardware features of the BM83 EVB. The BM83 EVB includes a range of peripheral components.

Figure 3-1. Block Diagram

BM83 EVB

Hardware

User Guide

DS50002902A-page 10

3.1 Hardware Features

Dxxx - LEDs

JPxxx/Jxxx - Jumpers

Sxxx/SWxxx - Switches/Push buttons

Legends:

D401

D402

D403

D404

D405

D406

D407

D411

S400

SW402

SW403

SW400

SW705

SW702

SW707

SW708

SW704

J600

D401

D402

D403

D404

D405

D406

D407

D411

S400

SW402

SW403

SW400

SW200

SW701

SW401

SW711

SW703

D202

D600 D203

D209

JP203

JP201

JP400

J200

JP600, JP601

D300, D301, D302

SW700 SW300

J700, J701, J702

J404

J405

JP501

JP503

J401, J402, J403

JP305

JP304

J505, J504

The following sections provide detailed information on the BM83 EVB components. To locate these components in the BM83 EVB, refer to Figure 2-1 and Figure 3-2.

Figure 3-2. BM83 EVB Switches, LEDs, and Jumpers

BM83 EVB

Hardware

3.1.1 Power Supply

The BM83 EVB can be powered using any one of the following:

• Li-ion battery (J201) – when using a battery input, mount a jumper on JP200 and pin 1 and 2 of JP201. Do not mount a jumper on JP202. JP202 is a provision for connecting a battery power source with 2.54 mm connector.

• 15V DC power adapter (P200)

• USB (J200 and J600) – USB cable is connected to the PC which provides 5V (USB_5V)

Note: Power switch (SW200) is utilized to switch between two 5V power sources available on board:

• 5V_DC: derived from 15V DC

• 5V_USB: supplied by 5V USB source

Note: To locate these power sources available on the BM83 EVB, refer to Figure 2-1.

User Guide

DS50002902A-page 11

3.1.2 USB Connectivity

The USB ports for BM83 EVB are:

• Micro-B USB port (J600 UART USB) – USB signals are converted to UART by the serial converter MCP2200, which is connected to BM83 module.

• Micro-B USB port (J200 BT_USB) – USB signals are directly connected to the BM83 module.

• Type A USB port (P400- MCU_USB) – USB signals are directly connected to host MCU ( PIC32MX450F256L).

Note: To locate these USB ports available on the BM83 EVB, refer to Figure 2-1.

3.1.3 Switches and Push Buttons

The functions of the switches and push buttons on the BM83 EVB are:

• S400 – Switch to select between on-board PIC32 MCU or external Plug-in Module (PIM)

• SW200 – Power switch to switch between 5V_DC and 5V_USB

• SW300 – Mode selection switch for configuring BM83 module into Application mode or Test mode

• SW400 – Microcontroller to Bluetooth control switch

• SW401 – Reset button for the host MCU (MCU_RESET)

• SW402 – Microcontroller to Bluetooth control switch

• SW403 – Microcontroller to Bluetooth control switch

• SW700 – Reset button for BM83 module (RST_N)

• SW701 – Multifunction button (MFB)

• SW702 – Increase volume (VOL_UP)

• SW703 – Enter into pairing mode (PAIRING)

• SW704 – Play or pause the audio playback (PLAY/PAUSE)

• SW705 – Decrease volume (VOL_DN)

• SW707 – Skip the audio track forward (FWD)

• SW708 – Skip the audio track backward (REV)

• SW711 – Select button (SEL), turns on the system and puts the system into Pairing mode during Host MCU mode application demonstration

Note: To locate these switches and push buttons available on the BM83 EVB, refer to Figure 3-2.

The following table provides the settings of mode selection switch (SW300) for configuring the BM83 module in various operating modes.

Table 3-1. Mode Selection Switch (SW300) Details

BM83 EVB

Hardware

Mode Pin Description

Test mode SW300 is placed in ON (P3_4: Low) position

Application mode SW300 is placed in OFF (P3_4: Floating) position

3.1.4 LEDs

All the on-board LEDs are categorized into three main types:

• Power LEDs:

• LEDs driven by the BM83 module:

• Host MCU (PIC32) related LEDs:

Note: To locate these LEDs available on the BM83 EVB, refer to Figure 3-2.

– Red (D600 and D202) – Green (D209 and D203)

– Red (D301) – Blue (D300)

– Green (D401-D407 ) – Green (D411)

User Guide

DS50002902A-page 12

3.1.5 Headers

The following headers are available on the BM83 EVB.

Note: To locate these headers available on the BM83 EVB, refer to Figure 2-1.

3.1.5.1 I2S Header

I2S header (J405) provides the interface to connect an STA369BW Audio Daughter Board to the BM83 module. The following table provides the pin details of I2S header.

Table 3-2. I2S Header (J405) Pin Details

Pin Number Pin Name

1 RFS1

2 SCLK1

3 DR1

4 DT1

5 MCLK1

6 GND

7 3V3_IO

BM83 EVB

Hardware

Note: Connect J405 and J404 to enable I2S interface with the STA369BW Audio Daughter Board.

3.1.5.2 Audio Daughter Board Interface Header

The Audio Daughter Board interface headers (J500 and J501) provide the interface to use the STA369BW Audio Daughter Board. The Table 3-3 and Table 3-4 tables provide the pin details of these headers.

Table 3-3. Audio Daughter Board Interface Header (J500) Pin Details

Pin Number Pin Name Pin Number Pin Name

1 GND 11 I2S_DR1

2 GND 12 I2S_SCLK1

3 GPIO/RxD 13 I2S_DT1

4 GPIO/CTS# 14 I2S_MCLK1

5 GPIO/TxD 15 GND

6 GPIO/RTS# 16 GND

7 GPIO/SCL 17 15V_DC_IN

8 GPIO/RST# 18 3V3_GEN

9 GPIO/SDA 19 15V_DC_IN

10 I2S_RFS1 20 5V_DC

Table 3-4. Audio Daughter Board Interface Header (J501) Pin Details

Pin Number Pin Name Pin Number Pin Name

1 NC 7 NC

2 NC 8 GPIO/PROT_N_DSP

3 GPIO/DSP_IRQ_N 9 NC

4 GPIO/SLEEP_N_DSP 10 NC

User Guide

DS50002902A-page 13

...........continued

Pin Number Pin Name Pin Number Pin Name

5 NC 11 GND

6 GPIO/MUTE_N_DSP 12 GND

3.1.5.3 Audio Control Button Headers

The audio control button headers (J700, J701, J702) provide the mechanism to control the audio function buttons either by the BM83 module (Embedded mode) or on-board PIC32 MCU (Host MCU mode). The following tables provide the header pin description Embedded and Host MCU mode configurations.

Table 3-5. Audio Control Button Headers (J700, J701, and J702) Pin Description

Pin Number Pin Name Description

1 PLY/PAU Play or pause

2 REV Reverse

3 FWD Forward

4 VOL– Volume down

5 VOL+ Volume up

BM83 EVB

Hardware

(1)

6 PAIRING Used for pairing the module with a smartphone (only for Host

MCU mode)

7 Sel Not used

8 NC Not connected

1. To locate these headers on the BM83 EVB, refer to Figure 2-1.

Table 3-6. Embedded Mode Audio Control Button Header Configurations (J700, J701, and J702)

Pin Number Jumper Names and Positions Description

J700 J701 J702

1 Open Mount a jumper on J701 and J702 Audio streaming is controlled

2 Open Mount a jumper on J701 and J702

3 Open Mount a jumper on J701 and J702

4 Open Mount a jumper on J701 and J702

5 Open Mount a jumper on J701 and J702

6 Open Open Open

7 Open Mount a jumper on J701 and J702

8 Open Open Open

1. To locate these headers on the BM83 EVB, refer to Figure 2-1.

by the BM83 module in Embedded mode.

(1)

User Guide

DS50002902A-page 14

BM83 EVB

Hardware

Table 3-7. Host MCU Mode Audio Control Button Header Configurations (J700, J701, and J702)

Pin Number Jumper Names and Positions Description

J700 J701 J702

1 Mount a jumper on J700 and J701 Open Audio streaming is controlled by on-

2 Mount a jumper on J700 and J701 Open

3 Mount a jumper on J700 and J701 Open

4 Mount a jumper on J700 and J701 Open

5 Mount a jumper on J700 and J701 Open

6 Mount a jumper on J700 and J701 Open

7 Mount a jumper on J700 and J701 Open

8 Open Open Open

1. To locate these headers on the BM83 EVB, refer to Figure 2-1.

3.1.5.4 BM83 Carrier Board Interface

The following table provides the pin details of J300 and the BM83 module interface with the BM83 EVB.

Table 3-8. Carrier Board Interface (J300) Pin Details

Pin Name Pin Number Pin Name

(1)

board PIC32MX450F256L MCU in Host MCU mode.

BK1_O_1V5 1 2 MCLK1

LED3 3 4 DT1

NC 5 6 DR1

RST_N 7 8 SCLK1

DP 9 10 RFS1

DM 11 12 GND

GND 13 14 P3_7

GND 15 16 P3_5

P2_7 17 18 NC

P1_3 19 20 BK2_O_1V8

P1_2 21 22 NC

P0_5 23 24 P0_1

P0_2 25 26 P0_0

P0_3 27 28 P2_3

P0_6 29 30 P0_7

LED2 31 32 UART_TXD

P1_6 33 34 UART_RXD

LED1 35 36 SK2_KEY_AD

P3_4 37 38 PWM

SK1_AMB_DET 39 40 MFB

User Guide

DS50002902A-page 15

...........continued

Pin Name Pin Number Pin Name

NA 41 42 DMIC2_R

NA 43 44 DMIC2_L

P3_2 45 46 VDD_IO

GND 47 48 SYS_PWR

MIC_BIAS 49 50 BAT_IN

MIC_P1 51 52 ADAP_IN

MIC_N1 53 54 NC

AIL 55 56 P2_6

AIR 57 58 DMIC1_R

MIC_P2 59 60 DMIC1_L

MIC_N2 61 62 DMIC_CLK

AOHPL 63 64 GND

AOHPM 65 66 GND

BM83 EVB

Hardware

AOHPR 67 — —

3.1.5.5 ICSP Header

ICSP header (J400) provides the programming/debugging interface for the on-board PIC32 MCU (PIC32MX450F256L). To locate this header on the BM83 EVB, refer to Figure 2-1. The following table provides the ICSP header pin description.

Table 3-9. ICSP Header (J400) Pin Description

Pin Number Description

1 Reset (MCLR)

2 Power supply (3V3_PIC)

3 Ground (GND)

4 Data (PGED1)

5 Clock (PGEC1)

6 Not connected (NC)

3.1.5.6 Xplained PRO Header

The BM83 EVB provides 20-pin XPRO header (J304) to interface with XPRO platform. The following table provides the pin details of XPRO header.

Table 3-10. XPRO Header (J304) Pin Details

Pin Name Pin Number Pin Name

NC

SK2_KEY_AD

NA

PWM

P0_6

1 2

3

5

7

9

User Guide

GND

4 SK1_AMB_DET

6 NA

8 P0_0

10 P3_5

DS50002902A-page 16

...........continued

Pin Name Pin Number Pin Name

BM83 EVB

Hardware

P1_3

UART_RXD

P0_7

P2_3

GND

3.1.5.7 Digital Microphone Headers

The 5-pin digital microphone header provides an interface to BM83 EVB and the Digital Microphone Daughter Board. The pin description is provided in the following table.

Table 3-11. Digital Microphone Headers (J1, J503, and J502) Pin Description

Pin Number

1 VDD VDD DIGMIC VDD DIGMIC Power supply from BM83 EVB

2 CLOCK DMIC1_CLK DMIC1_CLK Clock input to the microphone from

3 GND GND GND Ground

4 DATA DMIC1_L DMIC1_R PDM output from the microphone to

Digital Microphone Daughter Board

Pin Name (J1) Pin Name (J503) Pin Name (J502)

11

13

15

17

19

12 P1_2

14 UART_TXD

16 P2_6

18 P1_6

20 3V3_IO

BM83 EVB Pin Description

BM83 module

5 SEL DM1 SELECT DM2 SELECT Select input for microphone

User Guide

DS50002902A-page 17

4. Embedded Mode Quick Demo

This section provides a quick demo to stream audio using the BM83 module in Embedded mode.

Perform the following steps:

Note: The BM83 EVB is preconfigured for the Embedded mode quick demo.

1. Unbox the kit and connect the speaker cables to the STA369BW Audio Daughter Board at CN1 and CN2, and

connect the cables to the speaker.

Figure 4-1. Speakers Connected to the STA369BW Audio Daughter Board

BM83 EVB

Embedded Mode Quick Demo

2. The SW200 switch is set to 5V_USB position as shown in the following figure.

Figure 4-2. SW200 Switch Position

3. Connect the 15V DC adapter at DC power jack P200. Notice that the Green LED (D203) and the Red LED

(D202) turn ON.

4. Set the SW200 switch to 5V_DC position. Notice that the Green LED (D209) turns ON.

5. Long press MFB button (SW701) for minimum 4-5 seconds until the Blue LED (D300) and Red LED (D301)

start blinking alternately. Observe the sound on the speakers.

6. Release MFB button.

7. Perform the following steps to pair the BM83 module with a smartphone:

7.1. Turn ON the smartphone's Bluetooth to scan for the available devices.

7.2. Tap on “MCHP BM83” from the scan results. Pair to connect the device.

7.3. On successful pairing, the MCHP BM83 device must be visible under the “PAIRED DEVICES” as shown in the following figure.

User Guide

DS50002902A-page 18

Figure 4-3. Pairing and Connection

BM83 EVB

Embedded Mode Quick Demo

7.4. Stream the audio from the smartphone to the BM83 module over Bluetooth connection, and listen to it over the speakers.

8. Control the audio with the following buttons:

8.1. Press VOL_UP button (SW702) to increase the volume.

8.2. Press VOL_DN button (SW705) to reduce the volume.

8.3. Press Play button (SW704) to play the audio.

8.4. Press Pause button (SW704) to pause the audio.

8.5. Press FWD button (SW707) to jump to next audio file.

8.6. Press REV button (SW708) to jump to previous audio file.

8.7. Press MFB button (SW701) for a minimum of 4-5 seconds to turn OFF the system.

User Guide

DS50002902A-page 19

5. Firmware Update

This section describes the firmware update of the BM83 module over UART and USB DFU.

5.1 Firmware Update over UART

To update the firmware of the BM83 module, the user must ensure the hardware settings and configurations described in the following table.

Table 5-1. BM83 EVB Firmware Update Settings

(

Jumpers and Switches

JP600 and JP601 • Mount a jumper on JP600 (TXD)

JP304 Mount a jumper on “ADAP_IN” and “5V_ADAP_IN” pins of JP304 pin2 and pin3

JP203 Mount a jumper on 5V_USB and 5V_MCP pins of JP203 pin2 and pin3

SW300 Put SW300 switch to ON position for Test mode

SW200 Put SW200 switch to 5V_USB position

1)

Description

• Mount a jumper on JP601 (RXD)

BM83 EVB

Firmware Update

JP305 Mount a jumper on “3V3_IO” and “VDDIO” pins of JP305

J600 Connect the USB cable from a PC to J600

1. To locate these jumpers, switches, and power sources on the BM83 EVB, refer to Figure 3-2 and Figure 2-1.

Perform the following steps to load the firmware files onto the BM83 module using isUpdate tool. Note: Download isUpdate tool from http://www.microchip.com/BM83.

1. Connect the BM83 EVB Micro-B USB port J600 over USB cable to the PC.

Note: Be sure to disconnect the 15V power supply before connecting the USB cable.

2. Observe that the Red LED (D600), Green LED (D209), and Blue LED (D300) turn ON.

3. Open the isUpdate tool. Select the appropriate COM port, set the baud rate to 115200, and image num to 1 as shown in the following figure.

4. Click Connect.

User Guide

DS50002902A-page 20

Figure 5-1. isUpdate Tool Window

BM83 EVB

Firmware Update

Note: In isUpdate tool, image num values must be equal to the number of images to be programmed on the

device. For example, to program firmware (image1), DSP (image2), and configuration (image3), the image num value must be selected as 3.

5. The message on console and the transition of Connect button to Disconnect indicates that the connection is established successfully between the PC and the BM83 module.

Figure 5-2. Connection Established

User Guide

DS50002902A-page 21

BM83 EVB

Firmware Update

6. Once the connection is established, click Browse and locate the firmware image provided in the release package. Note: The Embedded mode firmware images are available in the package, refer to http://www.microchip.com/

BM83.

Figure 5-3. Browsing and Loading the Files

7. Click Update to load the firmware to BM83 module and observe the progress.

Figure 5-4. Updating the Firmware

User Guide

DS50002902A-page 22

8. Click Disconnect and close the isUpdate tool after a successful firmware update.

Figure 5-5. Process Completed

BM83 EVB

Firmware Update

9. Remove the USB cable.

5.2 Firmware Update over USB

Use the isUpdate tool to perform a firmware update on the BM83 module through USB Device Firmware Upgrade (DFU). The BM83 EVB should be in Application mode. For firmware update over the USB, the user must ensure the hardware settings and configurations described in the following table.

Table 5-2. BM83 EVB Firmware Update Settings

Jumpers and Switches

JP304 Mount a jumper on “ADAP_IN” and “5V_ADAP_IN” pins of JP304 pin2 and pin3

JP203 Mount a jumper on 5V_USB and 5V_BT pins of JP203 pin1 and pin2

SW200 Put SW200 switch to 5V_USB position

SW300 Put SW300 switch to OFF position for Application Mode

J200 Connect the USB cable from a PC to J200

JP305 Mount a jumper on “3V3_IO” and “VDD_IO” pins of JP305

1. To locate these jumpers, switches, and power sources on the BM83 EVB, refer to Figure 3-2 and Figure 2-1.

Perform the following steps to load the firmware files onto the BM83 module using the isUpdate tool. Ensure that the SW200 switch is in 5V_DC before connecting USB cable to J200 USB port.

1. Connect the BM83 EVB Micro-B USB port J200 over USB cable to the PC. Note: Be sure to disconnect the 15V power supply before connecting the USB cable.

2. Observe that the Green LED (D209) and Red LED (D202) turn ON.

3. Set the SW200 switch to 5V_USB.

(1)

Description

User Guide

DS50002902A-page 23

BM83 EVB

Firmware Update

4. Open the isUpdate tool. Select the port as USB HID, set the baud rate to 115200, and image num to 1 as shown in the following figure.

5. Click Connect.

Figure 5-6. Loading the Firmware Files

Note: In isUpdate tool, image num value must be equal to the number of images to be programmed on the

device. For example, to program firmware (image1), DSP (image2), and configuration (image3), the image num value must be selected as 3.

User Guide

DS50002902A-page 24

BM83 EVB

Firmware Update

6. The message on console and the transition of Connect button to Disconnect indicates that the connection is established successfully between the PC and the BM83 module.

Figure 5-7. Connection Established

User Guide

DS50002902A-page 25

BM83 EVB

Firmware Update

7. Once the connection is established, click Browse and open the firmware image provided in the release package. Note: The Embedded mode firmware images are available in the package, refer to www.microchip.com/

BM83.

Figure 5-8. Browsing and Loading the Files

8. Click Update to update the firmware and observe the progress.

User Guide

DS50002902A-page 26

Figure 5-9. Updating the Firmware

BM83 EVB

Firmware Update

9. Click Disconnect and close the isUpdate tool after a successful firmware update.

Figure 5-10. Process Completed

10. Remove the USB cable.

User Guide

DS50002902A-page 27

6. Customizing Module Parameters

6.1 Config Tool Setup

The IS208x_Config_GUI_Tool Config Tool setup is a configuration tool that allows the user to change the BM83 module parameters such as device name, Bluetooth Low Energy connection settings, LED configuration, enable/ disable Pairing mode and other functions. Note: For this demonstration, Config Tool version IS208x_Config_GUI_Tool v1.0.11 is used. Refer to the latest version at http://www.microchip.com/BM83. For additional details on the Config Tool, refer to IS208x Config GUI Tool User’s Guide.

To configure the GUI parameters, perform the following steps:

1. Open the Config Tool and click OK to configure the parameters.

Figure 6-1. Config Tool - Welcome Window

BM83 EVB

Customizing Module Parameters

2. In the Config Tool, click Load.

Figure 6-2. Config Tool

User Guide

DS50002902A-page 28

1

3

2

BM83 EVB

Customizing Module Parameters

3. From the Open window, select the default GUI parameters file (provided with the UI tool) for this module (BM83), and then click Open, see the following figure.

Figure 6-3. Loading Default GUI Parameters

4. After loading the GUI parameters, click Edit to customize the GUI parameters on the Main Feature window.

Figure 6-4. Editing Parameters

User Guide

DS50002902A-page 29

BM83 EVB

Customizing Module Parameters

5. In the Main Feature window, the user can enable or disable the features required for their application. Select the “Embedded Mode” option (see Figure 6-5) and click Next.

Note:

• For Host MCU mode, select the “Host MCU Mode”.

• For Embedded mode, select the “Embedded Mode”.

Figure 6-5. Main Feature Settings

User Guide

DS50002902A-page 30

BM83 EVB

Customizing Module Parameters

6. In the System and Functional Settings window, go to Sys. Setup1 tab to power ON/OFF the Bluetooth system. Select MFB Power ON/OFF in the “Power Switch Type” section.

Figure 6-6. Options in Sys. Setup1 Tab

User Guide

DS50002902A-page 31

BM83 EVB

Customizing Module Parameters

7. In the Sys. Setup2 tab, the user can change the following as shown in the Figure 6-7:

• Device name – add the device name in the text box available under “Name Frag Segment” section.

• Pairing mechanism – select Enable for the pairing mechanism available under “Simple Pairing” drop-down

menu.

Figure 6-7. Options in Sys. Setup2 Tab

User Guide

DS50002902A-page 32

BM83 EVB

Customizing Module Parameters

8. In the CODEC Setup tab, select Internal codec from the “CODEC Output Type” drop-down menu.

Figure 6-8. Options in CODEC Setup Tab

User Guide

DS50002902A-page 33

BM83 EVB

Customizing Module Parameters

9. Click Finish after modifying these settings. IS208x_DSP_GUI_Tool window opens as shown in the following figure.

Figure 6-9. Main Function Tab

User Guide

DS50002902A-page 34

BM83 EVB

Customizing Module Parameters

10. In the Voice Function tab, the user can set the required parameters as highlighted in the following figure.

Figure 6-10. Voice Function Tab

User Guide

DS50002902A-page 35

BM83 EVB

Customizing Module Parameters

11. In the Audio Function tab, the user can set the required parameters as highlighted in the following figure.

Figure 6-11. Audio Function Tab

User Guide

DS50002902A-page 36

BM83 EVB

Customizing Module Parameters

12. In the I2S/PCM tab, the user can set the required parameters as highlighted in the following figure.

Figure 6-12. I2S/PCM Tab

User Guide

DS50002902A-page 37

2

1

BM83 EVB

Customizing Module Parameters

13. Click Save to save the changed parameters onto a file and click OK on the confirmation window (see the following figure).

Figure 6-13. Saving Parameters

User Guide

DS50002902A-page 38

Customizing Module Parameters

14. Click Save to save the file in .HEX format as shown in the following figure.

Figure 6-14. Save as a HEX File

BM83 EVB

User Guide

DS50002902A-page 39

15. Click Exit followed by No as shown in the following figure.

1

2

Figure 6-15. Exiting the GUI Tool

BM83 EVB

Customizing Module Parameters

After saving the file, the user can see an additional .hex file in the GUI tool folder as shown in the following figure.

Figure 6-16. Generated HEX File

Note: For Embedded mode with internal codec demo, refer to 14. Appendix H: Bluetooth Audio Demonstration in

Embedded Mode with Internal Codec.

User Guide

DS50002902A-page 40

DP

DM

USB CONNECTOR

5V_BT

0.1uF 16V 0603

C211

1uF 16V 0603

C212

100R

FB200

100R

FB201

5V

D207

A

1

K

2

5V

SOD-882 PESD5V0X1BL,315

D208

CAD Note: ESD Diod es to be p laced closest to the US B connector

TP LOOP Red

TP203

GND_SHLD

5V

D206

0R

0603

R206

0R

0603

R207

ID

4

VBUS

1

GND

5

D-

2

D+

3

0

USB2.0 MICRO-B F EMALE

J200

BM83 Carrier Board USB

MODULE INTERFACE

AOHPM

AOHPL

MIC_P2

MIC_N2

AOHPR

AIL AIR

MIC_N1

MIC_P1

MIC_BIAS

DP

DM

P3_4

P3_2

P0_2 P0_3

P0_5

P2_7

P0_6

P3_4

P0_2

P0_6

P0_3

P0_5

P1_6

LED1

LED2

RST_N

LED1

LED2

MIC_BIAS

P3_5

SYS_PWR

VDD_IO

BAT_IN ADAP_IN

SK1_AMB_DET

SK2_KEY_AD

MFB

RFS1

DR1

DT1

SCLK1

MCLK1

ADAP_IN

BAT_IN

SYS_PWR

VDD_IO

MFBSK1_AMB_DET

SK2_KEY_AD

HCI_TXD HCI_RXD

P3_5

P0_0

P0_1

P1_3 P1_2

P0_1

DMIC2_R

DMIC2_L

P2_6

P0_7

P3_7

P0_7

P3_7

P1_6

P2_3

P2_6

RFS1

SCLK1

DR1

DT1

MCLK1

RST_N

DP

DM

P2_7

P1_3

P1_2

P2_3

DMIC1_R

DMIC1_L

DMIC_CLK

GPIO_1 GPIO_2

PWM

LED3

CLDO_O

CODEC_VO

RFLDO_O

BK1_O_1V5

BK2_O_1V8

LDO31_VO

DMIC1_L DMIC_CLK

DMIC1_R

DMIC2_R DMIC2_L

P3_2

0.1uF 16V 0603

C315

0.1uF 16V 0603

C316

SYS_PWR VDD_IO

1

TP300

LDO31_VO

1 2 3 4 5 6 7 8 9 10

11

68 69 70 71 72 73 74 75

20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67

M1

M2

EDGE 67 P Female

J300

Appendix A: BM83 EVB Reference Schematics

7. Appendix A: BM83 EVB Reference Schematics

Figure 7-1. USB Connector Schematic

Figure 7-2. BM83 Module Interface (over BM83 Carrier Board)

BM83 EVB

User Guide

DS50002902A-page 41

Figure 7-3. 5V Power Switch

5V_DC

5V_USB

5V_ADAP_IN

5V POWER SWITCH

GREEN

D209

1K 0603

R208

0.1uF 16V 0603

C213

1uF 16V 0603

C214

TP LOOP Red

TP204

GND_SHLD

NOTE : Recommend ed to switch to 5V_DC mode for audio applications

In pu t R ange for ADAP _IN : 4. 6V to 6V

5V

D205

5V_DC

5V_USB

1

2

3

TOGGLE SPDT

SW200

MCP_OSCINMCP_OSCOUT

USB TO UART CONVERTER

1 3

12Mhz

X600

12pF 50V 0603

C60912pF

50V 0603

C608

RST

4

GP7/TxLED

5

GP6/RxLED

6

GP5

7

GP4

8

GP3

9

GP2

14

GP1/USB-CFG

15

GP0/SSPND

16

CTS

13

RTS

11

RX

12

TX

10

VDD

1

VSS

20

OSC1

2

OSC2

3

D+

19

D-

18

VUSB

17

MCP2200

U602

EXT_3V3

0.1uF 0603

C605

0R 0603

R601

MCP_OSCIN

MCP_OSCOUT

EXT_3V3

0.1uF 16V 0603

C607

10k 0603 1%

R603

10k 0603 1%

DNP

R602

5V_MCP

10k 0603 1%

DNP

R606

MCP_TX

MCP_RX

MCP_D+

MCP_D-

EXT_3V3

0.1uF 16V 0603

C606

0R 0603

R605

1

TP600

1

TP601

1

TP602

1

TP603

1

TP604

1

TP605

1

TP606

1

TP607

Figure 7-4. USB-UART Converter

BM83 EVB

Appendix A: BM83 EVB Reference Schematics

User Guide

DS50002902A-page 42

Figure 7-5. Reset IC

RST_N

RESET IC (OPTIONAL)

0.1uF 16V 0603

C301

4.7k 0603 1%

R307

VDD_IO

SYS_PWR

VDD3VOUT

1

VSS

2

MCP111 DNP

U300

RST_N

RESET

5V_ADAP_IN

1uF 16V 0603

C704

0R 0603 DNP

R701

RST_N

1 4

2 3

TACT SPST

SW700

2k 0603 5%

R702

GND_SHLD

PESD5V0S1BA SOD-323

D700

15pF 50V 0603

C700

1

3

2

MMBT3904

Q700

Figure 7-6. Reset

BM83 EVB

Appendix A: BM83 EVB Reference Schematics

User Guide

DS50002902A-page 43

Figure 7-7. Push Button Interface

MFB/Power

VOL+

VOL-PLAY/PAUSE

REVFWD

PUSH BUTTON

1 4

2 3

TACT SPST

SW702

VOL_UP

1 4

2 3

TACT SPST

SW705

VOL_DN

REV

1 4

2 3

TACT SPST

SW708

PLAY/PAUSE

1 4

2 3

TACT SPST

SW704

FWD

1 4

2 3

TACT SPST

SW707

MFB

1 4

2 3

TACT SPST

SW701

SYS_PWR

PAIRING

1 4

2 3

TACT SPST

SW703

PAIRING

GND_SHLD

GND_SHLD GND_SHLD

GND_SHLD

PESD5V0S1BA SOD-323

D701

PESD5V0S1BA SOD-323

D702

PESD5V0S1BA SOD-323

D703

PESD5V0S1BA SOD-323

D705

PESD5V0S1BA SOD-323

D704

PESD5V0S1BA SOD-323

D707

PESD5V0S1BA SOD-323

D708

0R 0603

R700

MFB

15pF 50V 0603

C701

15pF 50V 0603

C702

15pF 50V 0603

C703

15pF 50V 0603

C705

15pF 50V 0603

C706

15pF 50V 0603

C708

15pF 50V 0603

C709

P0_6

1 4

2 3

TACT SPST

SW711

GND_SHLD

PESD5V0S1BA SOD-323

D710

15pF 50V 0603

C712

SELECT

BM83 EVB

Appendix A: BM83 EVB Reference Schematics

User Guide

DS50002902A-page 44

Figure 7-8. PIM Socket

48

4

21

22

23

72

71

70

69

41

42

43

1

44

10

5

100

24

25

82

83

84

85

86

87

81

80

91

90

9

15

79

78

77

76

11

6

99

36

35

75

96

74

73

12

7

50

49

30

31

29

28

34

33

32

40

39

98

97

95

94

8

68

65

13

89

88

56

55

54

53

64

67

66

14

63

62

61

52

51

60

59

58

57

3

2

26

27

38

37

93

92

16

17

47

45

46

18

19

20

PIM 100 Pin Male TH

U400

RG15

RE5

RE6

RE7

RC1

MCU_SDI

PIM_MCLR

MCU_BCLK

MCU_SDO

MCU_P20

3V3_PIC

RA0

RE8

RB5

MCU_REC

FUNC2_MCU

FUNC1_MCU

MCU_PLAY/PAUSE

MCU_REV

MCU_FWD

MCU_VOL_DN

MCU_VOL_UP

RA1

MCU_LED1

MCU_LED6

MCU_LED5

MCU_LED4

MCU_LED3

MCU_LED2

MCU_LED8

MCU_LED7

TXD_MCU

RXD_MCU

RST_MCU

FLASH_CS#

MCU_VBUS

3V3_PIC

MCU_DP

MCU_DM

RA3

RA2

OSC2

OSC1

MCU_EXT1

RPD9

SCK1

MCU_SCL

MCU_SDA

RC14

RC13

RD11

RD8

MCU_EXT2

MCU_EXT3

MCU_EXT4

MCU_EXT5

MCU_EXT6

RD4

MCU_EXT7

MCU_EXT8

RF1

RF0

MFB_MCU

RG1

RPE3

RE4

RG13

RE2

RG14

RG12

RE0

RE1

RA7

RC3

RC4

RC2

RTSn_MCU

CTSn_MCU

100 Pin PIM Socket

10uF 16V

0805

C409

MCU_SLEEP MCU_MUTE

MCU_PROT_N

MCU_IC_N

PAIRING_MCU

UTX_IND

LINE_IN_DET_MCU

PGEC1

PGED1

BM83 EVB

Appendix A: BM83 EVB Reference Schematics

User Guide

DS50002902A-page 45

Figure 7-9. Microphone

MIC_P2

MIC_N2

MIC2

MICROPHONE INPUT

1 2 3

HDR-2.54 Male 1x3

JP502

0603 DNP

C516

1

TP503

1

TP504

1uF 16V 0603

C518

1uF 16V 0603

C513

1uF 16V 0603

C514

2.2k 0603 1%

R506

MIC_P1

MIC_N1

MIC1

1 2 3

HDR-2.54 Male 1x3

JP500

0603 DNP

C504

MIC_P1

MIC_N1

1

TP500

1

TP501

1uF 16V 0603

C506

1uF 16V 0603

C500

1uF 16V 0603

C502

2.2k 0603 1%

R500

MIC_N2

MIC_P2

MIC_N1

MIC_P1

MIC_BIAS

5

1

4

3

2

JACK Stereo Phone 3.5mm

P500

5

1

4

3

2

JACK Stereo Phone 3.5mm

P502

Note: Single En d Type MIC : R505=0E Differential Type MIC: R505=2.2K

Note: Single En d Type MIC : R508=0E Differential Type MIC: R508=2.2K

0R 0603

R508

0R 0603

R505

BM83 EVB

Appendix A: BM83 EVB Reference Schematics

User Guide

DS50002902A-page 46

Figure 7-10. MCU to Bluetooth Switch

MFB_MCU

TXD_MCU

RXD_MCU

RST_MCU

MCU_BCLK

MCU_SDI

FLASH_CS#

MFB HCI_RXD HCI_TXD RST_N

P3_4

SCLK1

P3_7

MCU to BT Switch

MCU

BT

33R 06035%R423 33R 06035%R424 33R 06035%R425 33R 06035%R426 33R 06035%R427 33R 06035%R428

33R 06035%R422

33R 06035%R420

33R 06035%R419

33R 06035%R418

33R 06035%R416 33R 06035%R417

RFS1

DT1

MCU I2S IN BT I2S OUT

P2_6

P0_0

UTX_IND

P2_3

CTSn_MCU

RTSn_MCU

MCU_P20

FUNC1_MCU

11A

22A

33A

44A

55A

66A

DIP 6 SPST

SW402

11A

22A

33A

44A

55A

66A

DIP 6 SPST

SW403

SCK1

MCU_EXT1

SCLK1_DSP DT1_DSP

RFS1_DSP

MCU vs. BT SWITCH

DSP I2S

33R 06035%R400 33R 06035%R401 33R 06035%R402

MCU_EXT1

LINE_IN_DET_MCULINE_IN_DET

MCLK1_DSP

RPD9

33R 06035%R434

RPE3

P3_2

11A

22A

33A

44A

55A

66A

DIP 6 SPST

SW400

BM83 EVB

Appendix A: BM83 EVB Reference Schematics

User Guide

DS50002902A-page 47

Figure 7-11. PIC32MX450F256L Pin Configuration

PIC32_MCLR

MFB_MCU

OSC2

OSC1

MCU_SDI

MCU_SDO

MCU_BCLK

RC3

RC4

RC2

MCU_P20

RA0

3V3_PIC

3V3_PIC 3V3_PIC3V3_PIC

3V3_PIC

MCU_LED1

MCU_LED2

MCU_LED3

MCU_LED4

MCU_EXT1

MCU_MUTE

MCU_SLEEP

MCU_IC_N

MCU_LED5

MCU_LED6

MCU_LED7

MCU_LED8

MCU_VOL_UP

MCU_FWD

MCU_VOL_DN

MCU_REV

MCU_PLAY/PAUSE

MFB_MCU

(UART_TXD)

(UART_RXD)

10uF 16V 0805

C408

RG15

RE5

RE6

RE7

RC1

RE8

RB5

FUNC2_MCU

FUNC1_MCU

MCU_PLAY/PAUSE

MCU_REV

MCU_FWD

MCU_VOL_DN

MCU_VOL_UP

MCU_LED8

MCU_LED7

MCU_LED6

MCU_LED5

MCU_LED4

MCU_LED3

MCU_LED2

MCU_LED1

RC14

RC13

RD8

RPE3

RE4

RG13

RE2

RG14

RG12

RE0

RE1

RA7

RF1

RF0

10pF 50V 0603

C412

10pF 50V 0603

C415

RG1

MCU_SCL

MCU_SDA

MCU_IC_N

100uF 25V

C417

MCU_VBUS

RA1

10uF 25V 0805

C416

PAIRING_MCU

MCU_PROT_N

SCK1

RPD9

MCU_EXT1

MCU_SDA

MCU_SCL

MCU_SLEEP

MCU_MUTE

RA3

RA2

MCU_DP

MCU_DM

CTSn_MCU

FLASH_CS#

RST_MCU

MCU_VBUS

TXD_MCU

RXD_MCU

MCU_EXT8

MCU_EXT7

RTSn_MCU

RD4

MCU_EXT6

MCU_EXT5

MCU_EXT4

MCU_EXT3

MCU_EXT2

VCAP

MCU_REC

LINE_IN_DET _MCU

MCU_PROT_N

5V_ADAP_IN

1 2

HDR-2.54 Male 1x2

JP401

RD11

13

16MHz

X400

RG15

1

VDD

2

AN22/RPE5/PM D5/RE5

3

AN23/PMD6/RE 6

4

AN27/PMD7/RE 7

5

RPC1/RC1

6

RPC2/RC2

7

RPC3/RC3

8

RPC4/CTED7/RC4

9

AN16/C1IND/ RPG6/SCK2/PMA5/RG6

10

AN17/C1INC/RP G7/PMA4/RG7

11

AN18/C2IND/ RPG8/PMA3/RG8

12

MCLR

13

AN19/C2INC/RP G9/PMA2/RG9

14

VSS

15

VDD

16

17 TMS/CTED1/RA0

17

RPE8/RE8

18

RPE9/RE9

19

AN5/C1INA/RP B5/VBUSON/RB5

20

PGEC2/AN6/RPB6/RB6

26

PGED2/AN7/RPB7/CTED3/RB727VREF-/CVREF-/PMA7/RA9

28

VREF+/CVREF+/PMA6/RA10

29

AVDD

30

AVSS

31

AN8/RPB8/CTED10/RB8

32

AN9/RPB9/CTED4/RB9

33

AN10/RPB10/CTED11/PMA13/RB10

34

AN11/PMA12/RB1135VSS

36

VDD

37

TCK/CTED2/RA138RPF13/RF1339RPF12/RF1240AN12/PMA11/RB1241AN13/PMA10/RB1342AN14/RPB14/CTED5/PMA1/RB14

43

AN15/RPB15/OCFB/CTED6/PMA0/RB1544VSS

45

VSS

75

SOSCO/RPC14/T1CK /RC14

74

SOSCI/RPC13/RC13

73

RPD0/INT0/RD0

72

RPD11/PMCS1/RD11

71

RPD10/SCK1/PMCS2/ RD10

70

RPD9/RD9

69

RPD8/RTCC/RD8

68

SDA1/RPA15/RA15

67

SCL1/RPA14/RA14

66

VSS

65

OSC2/CLKO/RC15

64

OSC1/CLKI/RC12

63

VDD

62

TDO/RA5

61

TDI/CTED9/RA 4

60

SDA2/RA3

59

SCL2/RA2

58

D+

57

D-

56

AN21/PMD4/RE4

100

RPE3/PMD3/RE3

99

AN20/CTPLS/PMD2/RE2

98

TRD0/RG13

97

TRD1/RG12

96

TRD2/RG14

95

PMD1/RE194PMD0/RE0

93

TRD3/CTED8/RA7

92

TRCLK/RA6

91

RPG0/PMD8/RG0

90

RPG1/PMD9/RG1

89

RPF1/PMD10/RF1

88

RPF0/PMD11/RF0

87

VDD

86

VCAP

85

PMD15/RD7

84

PMD14/RD6

83

RPD5/PMRD/RD5

82

RPD4/PMWR/RD4

81

AN4/C1INB/RB4

21

PGED3/AN3/ C2INA/RPB3/RB3

22

PGEC3/AN2/C2 INB/RPB2/CTED13/RB2

23

PGEC1/AN1/RPB 1/CTED12/RB1

24

PGED1/AN0/ RPB0/RB0

25

VDD

46

RPD14/RD14

47

RPD15/RD15

48

RPF4/PMA9/RF4

49

RPF5/PMA8/RF5

50

VUSB3V3

55

VBUS

54

RPF8/RF8

53

RPF2/RF2

52

USBID/RF3

51

PMD13/RD13

80

RPD12/PMD12/RD12

79

AN26/RPD3/RD3

78

AN25/RPD2/RD2

77

AN24/RPD1/RD1

76

PIC32MX450F256 L

U402

LINE_IN_DET_MCU

UTX_IND

PGEC1

PGED1

Shunt 2.54mm 1x2

JP403

BM83 EVB

Appendix A: BM83 EVB Reference Schematics

User Guide

DS50002902A-page 48

Figure 7-12. LED Interface

MCU_LED1

MCU_LED2

MCU_LED3

MCU_LED4

MCU_LED5

MCU_LED6

MCU_LED7

MCU_LED8

LED(MCU)

200R 0603 1%

R406

200R 0603 1%

R409

200R 0603 1%

R411

200R 0603 1%

R412

200R 0603 1%

R413

200R 0603 1%

R414

200R 0603 1%

R415

200R 0603 1%

R421

GREEN

D401

GREEN

D402

GREEN

D403

GREEN

D404

GREEN

D405

GREEN

D406

GREEN

D407

GREEN

D411

3V3_GEN

BM83 EVB

Appendix A: BM83 EVB Reference Schematics

User Guide

DS50002902A-page 49

Figure 7-13. ICSP Interface

GND

MCU_RESET

TARGET SELECT On board MCU or PIM

ICSP

3V3_PIC

1 4

2 3

TACT SPST

SW401

PESD5V0S1BA

D400

1K

0603 1%

R405

10k 0603 1%

R404

0.1uF 50V 0603

C413

0.1uF 50V 0603

C414

MCLR

JS202011SCQN

6

4

5

1

2

3

S400

GND

PIM_MCLR

PIC32_MCLR

3V3_GEN 3V3_PIC

1 2

HDR-2.54 Male 1x2

JP400

VDD

8

VSS

4

CE

1

WP

3

SCK

6

HOLD

7

SO

2

SI

5

SST25VF080B

U401

3V3_PIC

0.1uF 50V 0603

C410

20k 0603 5%

R403

3V3_PIC

MCU_SDO

MCU S-Flash

3V3_PIC

10uF 25V 0805

C411

MCU_BCLK

MCU_SDI

FLASH_CS#

PGEC1

PGED1

Shunt 2. 54mm 1x2

JP402

1 2 3 4 5 6

HDR-2.54 Male 1x6

J400

1 2 3 4 5 6 7

HDR-2.54 Male 1x7

J404

1

2

3

4

5

6

7

HDR-2.54 Male 1x7

J405

BT DSP

RFS1_DSP

SCLK1_DSP

DT1_DSP

DR1_DSP

MCLK1_DSP

RFS1

DR1 DT1

SCLK1

Serial clock Serial data receive

Serial data transmit

I2S HEADER

33R 06035%R431

33R 06035%R429

33R 06035%R432 33R 06035%R433

Receive Frame Sync

33R 06035%R430

MCLK1

3V3_IO 3V3_IO

BM83 EVB

Appendix A: BM83 EVB Reference Schematics

Figure 7-14. I2S Header

User Guide

DS50002902A-page 50

Figure 7-15. I2C Interface

3V3_IO

P1_3

P1_2

0R

0603

R325

P3_2

3V3_IO

0.1uF 16V 0603

C313

1uF 16V 0603

C314

I2C_INTERFACE

A0

1

SDA

5

A2

3

A1

2

WP

7

VSS

4

SCL

6

VCC

8

24LC64

U301

3V3_IO

1

2

3

HDR-2.54 M ale 1x3

JP307

P2_3

1

2

3

HDR-2.54 M ale 1x3

JP308

P2_6

P1_2

P1_3

JP307, JP308

1-2

2-3

SW I2C

HW I2C (Default)

1 2

HDR-2.54 M ale 1x2

JP309

P2_3

P2_6

Note: JP309 is Test Point for SW I2C IOs . To be used to c onnect to Ext Codec (J 402) while us ing SW I2C . To be placed near t he Ext Cod ec section

I2C_SDA

I2C_SCL

Shunt 2. 54mm 1x2

JP315

Shunt 2. 54mm 1x2

JP316

1.5k 0603 1%

R300

1.5k 0603 1%

R301

3V3_IO

P1_3

P1_2

0R

0603

R325

P3_2

3V3_IO

0.1uF 16V 0603

C313

1uF 16V 0603

C314

I2C_INTERFACE

A0

1

SDA

5

A2

3

A1

2

WP

7

VSS

4

SCL

6

VCC

8

24LC64

U301

3V3_IO

1

2

3

HDR-2.54 M ale 1x3

JP307

P2_3

1

2

3

HDR-2.54 M ale 1x3

JP308

P2_6

P1_2

P1_3

JP307, JP308

1-2

2-3

SW I2C

HW I2C (Default)

1 2

HDR-2.54 M ale 1x2

JP309

P2_3

P2_6

Note: JP309 is Test Point for SW I2C IOs . To be used to c onnect to Ext Codec (J 402) while us ing SW I2C . To be placed near t he Ext Cod ec section

I2C_SDA

I2C_SCL

Shunt 2. 54mm 1x2

JP315

Shunt 2. 54mm 1x2

JP316

1.5k 0603 1%

R300

1.5k 0603 1%

R301

BT----DSP----MCU INTERFACE

MCU_IC_N MCU_SLEEP MCU_MUTE MCU_SCL MCU_SDA MCU_PROT_N

P0_2

P2_7

P0_5

P1_6

P0_01

2 3 4 5 6 7

HDR-2.54 Male 1x7

J401

1 2 3 4 5 6 7

HDR-2.54 Male 1x7

J402

1 2 3 4 5 6 7

HDR-2.54 Male 1x7

J403

BT

DSP

MCU

P1_2

P1_3

SCL_DSP SDA_DSP PROT_N_DSP

DSP_IC_N_DSP SLEEP_N_DSP MUTE_N_DSP

DSP_IRQ_N

JP406

JP407

JP405

JP404

Embedded Mode Jumper Settings

J401 J402#1Jumper to be Mount

JP404

#4 #5 #7

#1 #4 #5 #7

JP405 JP406 JP407

GND

VDD_DIGMIC

DM1_SELECT

GND

VDD_DIGMIC

DM2_SELECT

1 2 3

HDR-2.54 Mal e 1x3

J505

1 2 3

HDR-2.54 Mal e 1x3

J504

1 2 3 4 5

HDR-2.54 Mal e 1x5

J503 VDD _DIGMIC

DM1_SELECT

1 2 3 4 5

HDR-2.54 Mal e 1x5

J502 VDD_D IGMIC

GND

DM2_SELECT

DIGITAL_MIC

DMIC1_R

DMIC1_L

GND

DMIC1_L

DMIC1_R

DMIC1_CLK

DMIC1_CLKShunt 2.5 4mm 1x2

JP509

Shunt 2.5 4mm 1x2

JP511

100R

FB500

DMIC2_CLK

DMIC1_CLK

100R

FB501

DMIC_CLK

Figure 7-16. BT –DSP–MCU Interface

BM83 EVB

Appendix A: BM83 EVB Reference Schematics

Figure 7-17. Digital MIC and Interface

User Guide

DS50002902A-page 51

Figure 7-18. CPU JTAG Header

CPU_JTAG

RST_N

GND

3V3_IO

P1_2 P1_3

EMUD_CP U

EMUC_CP U

0.1uF 16V 0603

C311

1 2 3 4 5 6

HDR-2.54 Male 1x6

J301

XPRO_INTERFACE

3V3_IO

Xplained Pr o sta ndar d extension head er

I2C_SDA I2C_SCL UART_RX UART_TX SPI_SS_A SPI_MOSI SPI_MISO SPI_SCK

IRQ/GPIO SPI_SS_B/GPIO

0R 0 603R309

0R 0 603R314

0R 0 603R312

0R 0 603R315

0R 0 603R310

0R 0 603R317 0R 0 603R319

0R 0 603R316 0R 0 603R318

0R 0 603R313

4.7uF

6.3V 0603

C302

SK2_KEY_AD

HOST_WAK EUP

UART_RTS

CHIP_EN

IRQN

SPI_SSN

BT_UART1 _TXD

SPI_MISO

HCI_TXDHCI_RXD

P0_6

0R 0 603R324

SK1_AMB_DET

GPIO_1 GPIO_2

I2C_SDA I2C_SCL

GPIO_1 GPIO_ 2

ADC+ ADC-

SK1_AMB_DE TSK2_KEY_ AD

PWM

PWM+

P1_6

P3_5

P0_7 P2_3

P2_6

P0_0

0R 0 603R326 0R 0 603R327

0R 0 603R328

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

HDR-2.54 Male 2x10 RA Rotated 180

J304

MCU_VOL_UP

MCU_FWD

MCU_REV

MCU_VOL_DN

PAIRING_MCU

MCU_PLAY/PAUSE

12345678

HDR-2.54 Male 1x8

J700

12345678

HDR-2.54 Male 1x8

J702

VOL_UP

FWD

REV

VOL_DN

PAIRING

PLAY/PAUSE

12345678

HDR-2.54 Male 1x8

J701

BUTTON CO-USE JUMPER

MCU BUTTON BM8X_CARRIER_BOARD

CAD Note: Place these 3 headers close to each other

J 701<-->J 702 Default C on figu r ation J 701<-->J 700 For M CU Button Contr ol

P0_2 P0_3

P0_5 P2_7

P0_1

MCU_REC P0_6SELECT

JP702

JP704

JP705

JP706

JP703

JP701

JP700

Figure 7-19. XPRO Header

BM83 EVB

Appendix A: BM83 EVB Reference Schematics

Figure 7-20. Button Control Jumper

User Guide

DS50002902A-page 52

HPL

HPR

AOHPM

AOHPL

AOHPR

AOHPL/R Stereo Output Jack

AUDIO HEADSET OUTPUT

12

HDR-2.54 Male 1x2

JP501

1 2

HDR-2.54 Male 1x2

JP503

0R 0603 DNP

R509

0R 0603 DNP

R507

0.1uF

0603

DNP

C520

0.1uF

0603

DNP

C515

1

TP502

1

TP505

5

1

4

3

2

JACK Stereo Phone 3.5mm

P503

68uF

6.3V

TANT-B

C517

68uF

6.3V

TANT-B

C519

Shunt 2.54mm 1x2

JP505

Shunt 2.54mm 1 x2

JP507

AUDIO_BOARD_INTERFACE

GND

0.1uF 50V 0603

C510

0.1uF 50V 0603

C511

0.1uF 50V 0603

C512

0.1uF 50V 0603

C509

GND

NOTE: PWR Vol tage r ange +9 t o +15V

HCI_RXD

GND

SCL_DSP

SDA_DSP

SCL

SDA

DT1_DSP

DR1_DSP

15V_DC_IN

5V_DC

3V3_GEN

GND

MCLK1_DSP

SCLK1_DSP

RFS1_DSP

P3_7

HCI_TXD P3_4

RX

TX

CTS

RTS

RFS1 DR1 DT1 SCLK1

MCLK1

SLEEP_N_DSPDSP_IRQ_N

DSP_IC_N_DSP

RST(P0_0)

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

HDR-2.54 Male 2x10

J500

1

2

3

4

5

6

7

8

9

10

11

12

HDR-2.54 Male 2x6

J501

MUTE_N_DSP PROT_N_DSP

GND GN D

AIR

AIL

LINE_IN_DET

STEREO AUX LINE INPUT

0.1uF 16V 0603

C508

10uF1 6V 0805

C503

10uF1 6V 0805

C505

5V

DNP

D500

5V

DNP

D501

5V SOD-882 DNP

D502

1K 0603

R502

1K 0603

R503

10k 0603 1%

R501

10k 0603 1%

R504

470pF 50V 0603

C501

470pF 50V 0603

C507

4

1

10

3

2

CON JACK PHONE 3.5mm TSH-386D

P501

AMB_DET

NCP15WF104F03

(Thermi st or)

86.6k 0603 1%

R322

-t

100k 0402 1%

TH300

0.1uF 16V 0603

C303

1 2

HDR-2.54 Male 1x2

JP302

12

HDR-2.54 Male 1x2

JP301

1uF 16V 0603

C304

1M 0603 1%

R321

VDD_IO

SK1_AMB_DET

Shunt 2. 54mm 1x2

JP312

Shunt 2. 54mm 1x2

JP313

Appendix A: BM83 EVB Reference Schematics

Figure 7-21. Stereo AUX Line Input, Audio Headset Output, Audio Board Interface

BM83 EVB

Figure 7-22. Temperature Sensor

User Guide

DS50002902A-page 53

5V_MCP EXT_3V3

0.1uF 16V 0603

C603

0.1uF 16V 0603

C602

10uF 10V 0603

C604

5V TO 3V3 GENERATION

VIN

3

GND

1

VOUT

2

MCP1702T-3302E/CB

U600

Appendix A: BM83 EVB Reference Schematics

Figure 7-23. 5V to 3V3 Generation for USB-UART Section

BM83 EVB

User Guide

DS50002902A-page 54

Appendix B: STA369BW Audio Daughter Board

8. Appendix B: STA369BW Audio Daughter Board

The STA369BW Audio Daughter Board is a high-performance stereo codec board, which is suitable for adding audio input and output capabilities to the Bluetooth Audio development platforms.

The STA369BW Audio Daughter Board has the following components:

• STMicroelectronics codec (STA369BW)

• Female 20-pin dual-row header (J1)

• Female 12-pin dual-row header (J2)

• Audio out connectors (CN1 and CN2)

Figure 8-1. STA369BW Audio Daughter Board

BM83 EVB

The following table provides the pin description of Audio Daughter Board headers.

Table 8-1. 20-Pin Audio Daughter Board Header (J1) Pin Details

Pin Name Pin Number Pin Name

GND 1 2 GND

UART_RXD 3 4 UART_CTS

UART_TXD 5 6 UART_RTS

I2C_SCL 7 8 RST

I2C_SDA 9 10 I2S_RFS1

I2S_DR1 11 12 I2S_SCLK1

I2S_DT1 13 14 I2S_MCLK1

User Guide

DS50002902A-page 55

Appendix B: STA369BW Audio Daughter Board

...........continued

Pin Name Pin Number Pin Name

GND 15 16 GND

PWR 17 18 3V3

PWR 19 20 5V

Table 8-2. 12-Pin Audio Daughter Board Header (J2) Pin Details

Pin Name Pin Number Pin Name

NC 1 2 3V3

DSP_IRQ_N 3 4 PWRDN

NC 5 6 MUTE_N

NC 7 8 INT

NC 9 10 NC

GND 11 12 GND

BM83 EVB

User Guide

DS50002902A-page 56

Appendix C: Digital Microphone Daughter Bo...

9. Appendix C: Digital Microphone Daughter Board

The Digital Microphone Daughter Board has the following components:

• On-board Knowles’ Digital Microphone SPH0641LU4H-1

• Female 5-pin 1x5 header (J1) to interface to BM83 EVB (J503 and J502)

Figure 9-1. Digital Microphone Daughter Board - Top and Bottom View

BM83 EVB

The following table provides the pin description of the Digital Microphone header.

Table 9-1. Digital Microphone Headers (J1, J503, and J502) Pin Description

Pin Number

1 VDD VDD DIGMIC VDD DIGMIC Power supply from BM83 EVB

2 CLOCK DMIC1_CLK DMIC1_CLK Clock input to the microphone from

3 GND GND GND Ground

4 DATA DMIC1_L DMIC1_R PDM output from the microphone to

5 SEL DM1 SELECT DM2 SELECT Select input for microphone

Note:

1. BM83 module supports 1 stereo Digital Microphone (left and right) terminated at J503 and J502 headers

2. The VDD power supply for Digital Microphone operation is provided over J509 header on the BM83 EVB.

3. The Select pin should not be left floating and should be connected to high or low. This is achieved by 3-pin

4. For more details on using Digital Microphone with the BM83, refer to IS208x Config UI Tool User’s Guide.

Digital Microphone Daughter Board

Pin Name (J1) Pin Name (J503) Pin Name (J502)

respectively.

headers J505 and J504 on BM83 EVB.

BM83 EVB Pin Description

BM83 module

User Guide

DS50002902A-page 57

Appendix D: J-Link 6-Pin Adapter Board

10. Appendix D: J-Link 6-Pin Adapter Board

J-Link 6-Pin Adapter Board is designed to connect to its targets through a 20-pin cable, provided with the J-Link. However, BM83 EVB uses a 6-pin connector supporting 2-wire JTAG.

Figure 10-1. J-Link 6-Pin Adapter Board

BM83 EVB

The following table provides the pin description of J-Link 6-Pin Adapter Board.

Table 10-1. J-Link 6-Pin Adapter Board Pin Description

Pin Number Pin Name on J-Link

Adapter Board

1 Reset_n Reset_n Reset

2 3V3 3V3_IO Power supply from BM83 EVB

3 GND GND Ground

4 TDI P1_2 CPU-2 Wire Debug Data

5 TCK P1_3 CPU-2 Wire Debug Clock

6 NC NC NC

Pin Name on BM83 EVB

Pin Description

User Guide

DS50002902A-page 58

Appendix E: Updating PIC32 MCU Parameters

11. Appendix E: Updating PIC32 MCU Parameters

Perform the following steps to load the .Hex file to the MCU:

1. Set SW200 switch to 5V_DC position.

2. Plug the 15V DC power adapter into the P200 jack for supplying power to the host MCU.

3. Connect the MPLAB ICD 3 to ICSP header J400 and PC.

Figure 11-1. ICD 3 Interface at the ICSP Header

BM83 EVB

4. Ensure that jumpers on JP400 and JP401 are mounted.

Note: Download and install the latest version of MPLAB X IDE tool, which is available at www.microchip.com/

mplab/mplab-x-ide.

5. Open the MPLAB X IPE tool.

6. Under the Device drop-down menu, select the MCU (PIC32MX450F256L) that is present on the BM83 EVB. The red dot indicates that the selected device does not match.

User Guide

DS50002902A-page 59

Figure 11-2. MPLAB X IPE Window

BM83 EVB

Appendix E: Updating PIC32 MCU Parameters

7. Successful device connection is indicated by a green dot. Click Apply followed by Connect.

Figure 11-3. Search for On-board Microcontroller

8. After the connection is established, click Browse and locate the MCU firmware file from the software folder. Then click Program as shown in the following figure.

User Guide

DS50002902A-page 60

Figure 11-4. Connect and Program

BM83 EVB

Appendix E: Updating PIC32 MCU Parameters

User Guide

DS50002902A-page 61

Appendix E: Updating PIC32 MCU Parameters

9. After the programming is complete, observe the Output – IPE window on the console.

Note: MCU firmware version V1.4.1 is used for the demonstration.

Figure 11-5. Verify the Log

BM83 EVB

10. Remove the 15V adapter.

User Guide

DS50002902A-page 62

BM83 EVB

Appendix F: Hardware Setup for Application Dem...

12. Appendix F: Hardware Setup for Application Demo in Host MCU Mode

Note: The host MCU (on-board PIC32 MCU) is connected to the BM83 module over UART. The host MCU is

controlling the BM83 module and driving the I2S audio out from the BM83 to an STA369BW Audio Daughter Board.

Perform the following hardware changes for the Host MCU mode application demo: Note: To locate these switches, jumpers, and headers on the BM83 EVB, refer to Figure 2-1 and Figure 3-2.

1. Mount a jumper on the pin2 (3V3_IO) and pin3 (VDDIO) of JP305.

2. Set the SW200 switch to 5V_DC position to enable the 5V supply to ADAP_IN.

3. Mount a jumper on the 3V3_GEN pin and 3V3_PIC pin of the JP400 to enable 3.3V to PIC.

4. Jumper settings on J402 and J403 to enable BM83 module to control DSP (audio codec):

4.1. Mount a jumper on pin1 of J402 and J403.

4.2. Mount a jumper on pin2 of J402 and J403.

4.3. Mount a jumper on pin3 of J402 and J403.

4.4. Mount a jumper on pin4 of J402 and J403.

4.5. Mount a jumper on pin5 of J402 and J403.

4.6. Mount a jumper on pin6 of J402 and J403.

4.7. Open pin7 of J402 and J403.

5. Jumper settings on J700 and J701 to enable BM83 module to control the audio control buttons:

5.1. Mount a jumper on pin1 of J700 and J701.

5.2. Mount a jumper on pin2 of J700 and J701.

5.3. Mount a jumper on pin3 of J700 and J701.

5.4. Mount a jumper on pin4 of J700 and J701.

5.5. Mount a jumper on pin5 of J700 and J701.

5.6. Mount a jumper on pin6 of J700 and J701.

5.7. Mount a jumper on pin6 of J700 and J701.

5.8. Open pin8 of J700 and J701.

6. Mount a jumper on pin2 and pin3 of JP201.

7. Set SW400 switches as follows:

7.1. RFS1_DSP to OFF position.

7.2. SCLK1 to OFF position.

7.3. DT1_DSP to OFF position.

7.4. MCLK1_DSP to OFF position.

7.5. LINE_IN_DET to ON position.

7.6. P3_2 to OFF position.

8. Set SW402 switches as follows:

8.1. MFB to OFF position.

8.2. HCI_RXD to ON position.

8.3. HCI_TXD to ON position.

8.4. RST_N to OFF position.

8.5. P0_0 to ON position.

8.6. P3_4 to ON position.

9. Set SW403 switches as follows:

9.1. P3_7 to ON position.

9.2. P2_6 to OFF position.

9.3. P2_3 to OFF position.

9.4. RFS1 to OFF position.

9.5. SCLK1 to OFF position.

9.6. DT1 to OFF position.

10. Jumper settings on J404 and J405 to connect BM83 module and STA369BW codec (ST) over I2S interface:

User Guide

DS50002902A-page 63

10.1. Mount a jumper on pin1 of J404 and J405.

10.2. Mount a jumper on pin2 of J404 and J405.

10.3. Mount a jumper on pin3 of J404 and J405.

10.4. Mount a jumper on pin4 of J404 and J405.

10.5. Mount a jumper on pin5 of J404 and J405.

10.6. Open pin6 of J404 and J405.

10.7. Open pin7 of J404 and J405.

11. Put the S400 switch to PIC32_MCLR position.

12. Put the SW300 switch to OFF position.

Note: In order to perform the following demo, the user must flash the Host mode firmware into the BM83 module as well as PIC32 MCU, as illustrated in the preceding sections.

12.1 Host MCU Mode Quick Demo

Perform the following steps to stream audio using the BM83 module in Host MCU mode.

1. Connect the speakers to the STA369BW Audio Daughter Board at CN1 and CN2.

Figure 12-1. Speakers Connected to the STA369BW Audio Daughter Board

BM83 EVB

Appendix F: Hardware Setup for Application Dem...

2. The SW200 switch is set to 5V_USB position as shown in the following figure.

Figure 12-2. SW200 Switch Position

User Guide

DS50002902A-page 64

BM83 EVB

Appendix F: Hardware Setup for Application Dem...

3. Connect the 15V DC adapter at DC power jack P200. Notice that the green LED (D203) and red LED (D202) turn ON as shown in the following figure.

Figure 12-3. 15V DC Adapter Plugged In

4. Change the SW200 switch to 5V_DC position. Notice that the green LEDs (D209 and D405) turn ON, as shown in the following figure.

Figure 12-4. LED Indication as SW200 is Turned to 5V_DC position

5. Long press SEL button (SW711) to turn on the system. Observe the sound on the speakers and the following LED behavior:

– Green LED (D401) turns ON – Blue (D300) and green (D402) LEDs blink

6. Long press SEL button (SW711) to make the BM83 module discoverable to other devices. Observe the sound on the speakers and the alternate blinking of red LED (D301) and blue LED (D300).

7. Follow the steps to pair the BM83 module with a smartphone:

7.1. Turn on the smartphone's Bluetooth to scan for the available devices.

7.2. Select the module device name "BM83" from the scan results. Pair and then connect the device.

7.3. On successful pairing, see the device name with status as Connected.

Note: This demonstration uses the EA1 demo version of the firmware.

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Appendix F: Hardware Setup for Application Dem...

Figure 12-5. Pairing and Connection

BM83 EVB

7.4. Stream the audio from the smartphone to the BM83 over Bluetooth connection, and listen to it over

the speakers.

8. Control the audio with the following buttons:

8.1. Press VOL_UP button(SW702) to increase the volume.

8.2. Press VOL_DN button (SW705) to reduce the volume.

8.3. Press Pause button (SW704) to pause the audio.

8.4. Press Play button (SW704) to play the audio.

8.5. Press FWD button (SW707) to jump to next audio file.

8.6. Press REV button (SW708) to jump to previous audio file.

8.7. Press SEL button (SW711) to turn OFF the system.

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BM83 EVB

Appendix G: Hardware Setup for Application Dem...

13. Appendix G: Hardware Setup for Application Demo in Embedded Mode

Note: In this mode of operation, the BM83 module is driving the I2S audio out to the STA369BW Audio Daughter

Board. The BM83 module is connected to the external codec over I2S and I2C.

Perform the following hardware changes for the Embedded mode application demo.

Note: To locate these switches, jumpers, and headers on the BM83 EVB, refer to Figure 2-1 and Figure 3-2.

1. Mount a jumper on the 3V3_IO pin and VDDIO pins of the JP305 pin 2 and pin3.

2. Put the SW200 switch to 5V_DC position to enable the 5V supply to ADAP_IN.

3. Jumper settings on J401 and J402 enable BM83 module to control the STA369BW Audio Daughter Board:

3.1. Mount a jumper on pin1 of J401 and J402.

3.2. Open pin2 of J401 and J402.

3.3. Open pin3 of J401 and J402.

3.4. Mount a jumper on pin4 of J401 and J402.

3.5. Mount a jumper on pin5 of J401 and J402.

3.6. Open pin6 of J401 and J402.

3.7. Mount a jumper on pin7 of J401 and J402.

4. Jumper settings on J701 and J702 to enable BM83 module to control the audio control buttons:

4.1. Mount a jumper on pin1 of J701 and J702.

4.2. Mount a jumper on pin2 of J701 and J702.

4.3. Mount a jumper on pin3 of J701 and J702.

4.4. Mount a jumper on pin4 of J701 and J702.

4.5. Mount a jumper on pin5 of J701 and J702.

4.6. Open pin6 of J701 and J702.

4.7. Mount a jumper on pin7 of J701 and J702.

4.8. Open pin8 of J701 and J702.

5. Mount jumper on the JP201 pin2 and pin3.

6. Set SW400 switches as follows:

6.1. RFS1_DSP to OFF position.

6.2. SCLK1 to OFF position.

6.3. DT1_DSP to OFF position.

6.4. MCLK1_DSP to OFF position.

6.5. LINE_IN_DET to OFF position.

6.6. P3_2 to ON position.

7. Set SW402 switches as follows:

7.1. MFB to OFF position.

7.2. HCI_RXD to OFF position.

7.3. HCI_TXD to OFF position.

7.4. RST_N to OFF position.

7.5. P0_0 to OFF position.

7.6. P3_4 to OFF position.

8. Set SW403 switches as follows:

8.1. P3_7 to OFF position.

8.2. P2_6 to OFF position.

8.3. P2_3 to OFF position.

8.4. RFS1 to OFF position.

8.5. SCLK1 to OFF position.

8.6. DT1 to OFF position.

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BM83 EVB

Appendix G: Hardware Setup for Application Dem...

9. Jumper settings on J404 and J405 to connect BM83 module I2S with STA369BW Audio Daughter Board I2S:

9.1. Mount a jumper on pin1 of J404 and J405.

9.2. Mount a jumper on pin2 of J404 and J405.

9.3. Mount a jumper on pin3 of J404 and J405.

9.4. Mount a jumper on pin4 of J404 and J405.

9.5. Mount a jumper on pin5 of J404 and J405.

9.6. Open pin6 of J404 and J405.

9.7. Open pin7 of J404 and J405.

10. Put the SW300 switch to OFF position.

11. By default, the board is configured with hardware (HW) I2C settings. For more details on the software (SW) I2C settings, refer to I2C Interface section in the IS2083 SDK User’s Guide (DS50002894).

12. Mount a jumper on pin2 and pin3 of the JP203.

With the above settings, the user can plug in the 15V DC adapter and perform the application demo in Embedded mode with the appropriate firmware image. This firmware image for the Embedded mode is available at

www.microchip.com/BM83.

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BM83 EVB

Appendix H: Bluetooth Audio Demonstration in ...

14. Appendix H: Bluetooth Audio Demonstration in Embedded Mode with Internal Codec

Note:

1. In this mode of operation, the BM83 module uses internal codec to drive the audio.

2. Do not connect 15V adapter at DC power jack P200.

3. Use the internal codec config file for this demo, for more details, refer to 6.1 Config Tool Setup.

In this demonstration, the user can stream audio on the BM83 EVB using a smartphone. Perform the following hardware settings on the BM83 EVB for Embedded mode with internal codec audio demo after updating the firmware:

1. Turn OFF the SW300 switch.

2. Mount a jumper at 5V_ADAP_IN and ADAP_IN of JP304.

3. Ensure to mount JP501 and JP503 (stereo out). Connect headphones or a speaker at stereo jack P503.

4. Set the SW200 switch to 5V_USB.

5. Plug the USB cable at J600. Observe that the Red LED (D600) and the Green LED (D209) turn ON.

Note: Red LED (D300) and Blue LED (D301) do not glow in this case.

6. Long press MFB button (SW701) to turn ON the system and keep pressing the MFB button to enter into

Pairing mode. Once the system is turned ON, the Red LED (D301) and the Blue LED (D300) blink alternately to indicate that the device has entered into Pairing mode.

7. The following steps help in pairing between BM83 module and a smartphone:

7.1. Turn ON the smartphone's Bluetooth to scan for the discoverable devices.

7.2. Select the module device name “BM83” from the scan results.

7.3. Enter 0000 as passcode to pair the smartphone with the BM83 module. The passcode is not required if simple pairing is enabled in the Config Tool.

The smartphone displays “Connected” upon successful pairing as highlighted in the following figure. The audio can be listened over the headphones.

Figure 14-1. Pairing BM83 with Smartphone

User Guide

DS50002902A-page 69

15. Document Revision History

Revision Date Section Description

A 07/2019 Document Initial Revision

BM83 EVB

Document Revision History

User Guide

DS50002902A-page 70

BM83 EVB

The Microchip Website

Microchip provides online support via our website at http://www.microchip.com/. This website is used to make files and information easily available to customers. Some of the content available includes:

• 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 design partner program member listing

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

seminars and events, listings of Microchip sales offices, distributors and factory representatives

Product Change Notification Service

Microchip’s product change notification service helps keep customers current on Microchip products. Subscribers will receive email notification whenever there are changes, updates, revisions or errata related to a specified product family or development tool of interest.

To register, go to http://www.microchip.com/pcn and follow the registration instructions.

Customer Support

Users of Microchip products can receive assistance through several channels:

• Distributor or Representative

• Local Sales Office

• Embedded Solutions Engineer (ESE)

• Technical Support

Customers should contact their distributor, representative or ESE for support. Local sales offices are also available to help customers. A listing of sales offices and locations is included in this document.

Technical support is available through the website at: http://www.microchip.com/support

Microchip Devices Code Protection Feature

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 evolving. We at Microchip are committed to continuously improving the code protection features of 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.

Legal Notice

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

User Guide

DS50002902A-page 71

BM83 EVB

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.

Trademarks

The Microchip name and logo, the Microchip logo, Adaptec, AnyRate, AVR, AVR logo, AVR Freaks, BesTime, BitCloud, chipKIT, chipKIT logo, CryptoMemory, CryptoRF, dsPIC, FlashFlex, flexPWR, HELDO, IGLOO, JukeBlox, KeeLoq, Kleer, LANCheck, LinkMD, maXStylus, maXTouch, MediaLB, megaAVR, Microsemi, Microsemi logo, MOST, MOST logo, MPLAB, OptoLyzer, PackeTime, PIC, picoPower, PICSTART, PIC32 logo, PolarFire, Prochip Designer, QTouch, SAM-BA, SenGenuity, SpyNIC, SST, SST Logo, SuperFlash, Symmetricom, SyncServer, Tachyon, TempTrackr, TimeSource, tinyAVR, UNI/O, Vectron, and XMEGA are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries.

APT, ClockWorks, The Embedded Control Solutions Company, EtherSynch, FlashTec, Hyper Speed Control, HyperLight Load, IntelliMOS, Libero, motorBench, mTouch, Powermite 3, Precision Edge, ProASIC, ProASIC Plus, ProASIC Plus logo, Quiet-Wire, SmartFusion, SyncWorld, Temux, TimeCesium, TimeHub, TimePictra, TimeProvider, Vite, WinPath, and ZL 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, BlueSky, BodyCom, CodeGuard, CryptoAuthentication, CryptoAutomotive, CryptoCompanion, CryptoController, dsPICDEM, dsPICDEM.net, Dynamic Average Matching, DAM, ECAN, EtherGREEN, In-Circuit Serial Programming, ICSP, INICnet, Inter-Chip Connectivity, JitterBlocker, KleerNet, KleerNet logo, memBrain, Mindi, MiWi, MPASM, MPF, MPLAB Certified logo, MPLIB, MPLINK, MultiTRAK, NetDetach, Omniscient Code Generation, PICDEM, PICDEM.net, PICkit, PICtail, PowerSmart, PureSilicon, QMatrix, 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.

The Adaptec logo, Frequency on Demand, Silicon Storage Technology, and Symmcom are registered trademarks 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.

©

ISBN: 978-1-5224-4808-2

Quality Management System

For information regarding Microchip’s Quality Management Systems, please visit http://www.microchip.com/quality.

User Guide

DS50002902A-page 72

Worldwide Sales and Service

AMERICAS ASIA/PACIFIC ASIA/PACIFIC EUROPE

Corporate Office

2355 West Chandler Blvd.

Chandler, AZ 85224-6199

Tel: 480-792-7200

Fax: 480-792-7277

Technical Support:

http://www.microchip.com/support

Web Address:

http://www.microchip.com

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Fax: 678-957-1455

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Tel: 46-8-5090-4654

UK - Wokingham

Tel: 44-118-921-5800

Fax: 44-118-921-5820

User Guide

DS50002902A-page 73

Microchip Technology BM83 EVB User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Introduction

Features

Table of Contents

1. Quick References

1.1 Reference Documentation

1.2 Hardware Requirements

1.3 Software Requirements

1.4 Acronyms/Abbreviations

2. Kit Overview

2.1 Kit Contents

3. Hardware

3.1 Hardware Features

3.1.1 Power Supply

3.1.2 USB Connectivity

3.1.3 Switches and Push Buttons

3.1.4 LEDs

3.1.5 Headers

3.1.5.1 I2S Header

3.1.5.2 Audio Daughter Board Interface Header

3.1.5.3 Audio Control Button Headers

3.1.5.4 BM83 Carrier Board Interface

3.1.5.5 ICSP Header

3.1.5.6 Xplained PRO Header

3.1.5.7 Digital Microphone Headers

4. Embedded Mode Quick Demo

5. Firmware Update

5.1 Firmware Update over UART

5.2 Firmware Update over USB

6. Customizing Module Parameters

6.1 Config Tool Setup

7. Appendix A: BM83 EVB Reference Schematics

8. Appendix B: STA369BW Audio Daughter Board

9. Appendix C: Digital Microphone Daughter Board

10. Appendix D: J-Link 6-Pin Adapter Board

11. Appendix E: Updating PIC32 MCU Parameters

12. Appendix F: Hardware Setup for Application Demo in Host MCU Mode

12.1 Host MCU Mode Quick Demo

13. Appendix G: Hardware Setup for Application Demo in Embedded Mode

14. Appendix H: Bluetooth Audio Demonstration in Embedded Mode with Internal Codec

15. Document Revision History

The Microchip Website

Product Change Notification Service

Customer Support

Microchip Devices Code Protection Feature

Legal Notice

Trademarks

Quality Management System

Worldwide Sales and Service