BM77EVB Evaluation Kit User’s Guide - Microchip...

© 2014 ISSC Technologies Corp. 1

BM77EVB Evaluation Kit User’s Guide

iSSC Technologies Corp.

Revision History

Date Revision Content Version

2014/10/03 Revision for BM77EVB WPS, Oct 2014 0.4


TableofContents

1. Overview ................................................................................................................................. 3

1.1. BM77EVB Description ...................................................................................................................................3

1.2. Features ........................................................................................................................................................4

2. Block Diagram ....................................................................................................................... 5

3. Interface Description ............................................................................................................. 6

3.1. Power Switch Settings ..................................................................................................................................7

3.2. Mode Definitions ...........................................................................................................................................7

3.3. Mode Switch Settings ....................................................................................................................................7

4. Quick Start Guide to Using the BM77EVB .......................................................................... 9

4.1. Bluetooth SPP connection to Android Smartphone/Tablet .............................................. 9

4.2. Bluetooth Low Energy Data Connection to iOS Device .................................................. 17

5. Appendix A: BM77SPP03 Module PIN Assignment ......................................................... 27

6. Appendix B: BM77EVB Schematic .................................................................................... 29

7. Appendix C: Q & A .............................................................................................................. 32

8. Appendix D: Reversion History ......................................................................................... 33


1. Overview

This document describes the hardware and software for the ISSC BM77EVB evaluation kit.

The BM77EVB allows the designer to evaluate and demonstrate the capabilities of the ISSC BM77 Dual Mode

Bluetooth RF Module. The evaluation board includes an integrated configuration and programming interface for

plug-and-play capability. It also includes on-board connection and data status LEDs enabling rapid prototyping and

fast time to market.

In addition to BM77EVB hardware, several software applications are provided to demonstrate Bluetooth data

connections to the onboard BM77 module. The demonstration software consists:

Android Chat Application (SPP)

iOS Bluetooth Terminal (BLETR)

BT Chat Tool

1.1. BM77EVB Description

BM77EVB provides rapid prototyping and developing for Bluetooth data applications for Classic SPP or Bluetooth

Low Energy. It can be powered via USB host or external battery Li-Battery. The BM77EVB utilizes the BM77 module,

a fully certified Bluetooth 4.0 dual mode RF module supporting Bluetooth Classic SPP (Serial Port Profile) and

Bluetooth Low Energy (BTLE) – providing a Bluetooth serial data connections. The BM77EVB provides a USB

UART converter allowing flexible interface to host PC, a PC terminal utility and SmartPhone APPs to drive both

classic SPP and BTLE data connections.


1.2. Features

- Fully certified on board Bluetooth 3.0+EDR and Bluetooth 4.0 stack

- Class 2 transmitter, +2dBM typical

- Transparent serial data connection over Bluetooth Classic Serial Port Profile (SPP) and Bluetooth Low Energy

transparent serial data serive

- Automatic configuration mode for quick setup (default)

- Manual configuration mode where MCU can access configuration settings

- Configuration settings stored in EEPROM

- Onboard dipswitch block to set operating modes

- 32- pin header to fully access BM77 pins

- Embedded MCP2200 USB-UART converter, no need for extra converter board or cable

- Integrated programming interface to update firmware and configuration settings


2. Block Diagram The diagram below shows a simplified block diagram for the BM77EVB. For more detailed information please refer

to BM77EVB schematic in Appendix B, BM77EVB Schematic.

BAT_IN

JP2 BM77 Module

EXT_3V7

5V

USB

BAT

JP1

Battery Connector(3.3V - 4.3V)

USB

P1

VBAT

LDO33_O3V3VDD_IOLDO18_O1V8

SW_BTN

EXT_3V3

MCP2200

VDDVUSB

TX

RX

U11

U8/U9

VCC_HCI

VCC_2V4/EXT_3V3

JP6

JP5

TXDRXD

M_RX U_RX

M_TX U_TX

UA

RT

_CT

S/P

17

UA

RT

_RT

S/P

00

CTS

RTS

JP7M_CTS U_RTS

JP9M_RTS U_CTS

SW1

ON 1

23

WAKEUP

LED1

P2

4E

AN

RS

T_N

P20

P24

EAN

P20

3V3

P24EAN

P20

AP

P

TE

ST

WR

ITE

FLA

SH

ON

ON

ON

12

3

System Configuration

MODE

VCC_2V4

VCC_HCI

LED1

D1

3V3

RESET

RED

BLUE

U10

P12/SCLP13/SDA

External I2CJP10

3V3

P37

P36

P34

P33

P32

P31

(1.8V)

P04P15

PMULDO_O

P0

5

BM77 EVB BLOCK DIAGRAM

D+D-

USB-to-UART Serial Converter

LDO

U3

LDO

U5

LDO

U6

LDO

U1

CN2

Last Revised: 2014-08-24 SB

SW3

WAKE-UP

SW2

RESET

SW4

RESET

SW5

SW_BTN

[Push-On/Push-Off]

(03 Option Only) BT_RF

External Antenna


3. Interface Description The illustration below shows a BM77EVB in its default configuration as shipped.

Description

1. JP1- Battery connector for Li-lon Battery, Voltage range 4.2~3.3V

2. JP2- Power source jumper

Source from BAT (4.2V~3.3)

Source from USB

(5V->LDO->3.7V)

3. SW5- The path between SW_BTN & BAT_IN, the button must be pressed down to make BM77 work.

4. JP3- Module 32-PIN out for connecting BM77 module to MCU

5. Bluetooth Module- BM77

6. I2C expansion port

7. I2C power jumper

8. SW3- Wake up button to wake up module from shutdown state


9. SW2- Reset button for Bluetooth module

10. JP4- Connect with iSSC propriety 8 PIN connector (EDGAR). Use Li-lon battery power and switch SW1

OFF while using EDGAR.

11. SW1- Mode Switch (see 3.2 Mode Definition, 3.3 Mode Settings)

12. JP7- CTS path of UART between BM77 & MCP2200. Remove the jumper if not using flow control.

13. JP9- RTS path of UART between BM77 & MCP2200. Remove the jumper if not using flow control.

14. JP6- RX path of UART between BM77 & MCP2200. Remove the jumper if trying to connect MCU & BM77.

15. JP5- TX path of UART between BM77 & MCP2200. Remove the jumper if trying to connect MCU & BM77.

16. U10- Microchip MCP2200 chip, USB/UART converter.

17. JP8- All the GPIO PIN connected to Microchip MCP2200.

18. SW4- Reset button for Microchip MCP2200

19. USB Connector- Micro USB connector

3.1. Power Switch Settings

Mode JP2

USB 5V

BAT 4.2V~3.3V

* Notice: SW5 button must be pressed down to wake BM77.

3.2. Mode Definitions

Switch Number 1 2 3

Pin P20 P24 EAN

ON Low Low High

Function Test Mode

High=Disable/ Application

Low=Enable/ Test Mode

Flash Write

High=Disable

Low=Enable

Boot by Flash or ROM

High=ROM

Low=Flash

3.3. Mode Switch Settings

Mode Switch PIN Definition

Write Flash

1. P20: Low

2. P24: Low

3. EAN: High

Test Mode

(Write EEPROM)

1. P20: Low

2. P24: High


3. EAN: Low

Application

(default)

1. P20: High

2. P24: High

3. EAN: Low


4. Quick Start Guide to Using the BM77EVB The following sections describe how to establish Bluetooth serial data connections using the BM77EVB. The

purpose of the exercise is to demonstrate the basic data capabilities of the BM77EVB, and interoperability with other

Bluetooth devices. Please note that in all these demonstrations, the BM77EVB is a Bluetooth slave waiting for a

connection initiated by the Bluetooth master device.

For this demonstration, the following hardware and software is required:

Required Hardware:

BM77EVB Evaluation Kit, p/n EV77SPPS3MC2A available on www.microchipdirect.com

Bluetooth enabled Smartphone or Tablet

o Android device running Android 4.3 or later

o iOS: iPhone 4S or later, iPad3 or later, must support Bluetooth Low Energy

Windows Host PC with USB port

Required Software:

The software applications needed to demonstrate the BM77EVB is show below:

BT Chat Tool, “BT Chat v004.exe” available at www.microchip.com/BM77

Android Chat Tool, “BTChat_V1.0.3.apk” available www.microchip.com/BM77

iOS Terminal “BLETR”, available on Apple AppStore™

MCP2200 driver for Windows, available at www.microchip.com/MCP2200

4.1. Bluetooth SPP connection to Android Smartphone/Tablet In this demonstration a Bluetooth (SPP) data connection will be established between the BT Chat Tool, across

BM77EVB to the Smartphone application. For the SPP demonstration an Android 4.3 or later smartphone or

tablet is required.

As illustrated below, the host PC runs a BT Chat Tool application, which transfers serial data over a COM port (USB

virtual COM port) to BM77EVB, where it is transmitted over a Bluetooth connection to the remote Bluetooth host,

which is this example is a Smartphone application.


Step 1. Verify JP2 is configured for USB power.

Default is using USB as the main power supply.

Step 2. Verify SW1 switches are set to Application mode.

Make sure the SW1 is under the Application Mode. 1: OFF, 2: OFF, 3: OFF

Step 3. Verify SW5 button is in the ON (pushed down).

Step 4. Using the micro USB cable, connect the BM77EVB to host PC USB port to power up EVB.

The blue connection LED1 indicates connection state as follows:

Stand-by State- the LED1 of EVB will blink once at a time. (Blue)

Pairing, Connected State- the LED01 will blink twice at a time.

Step 5. Verify Virtual COM port is created

If a virtual COM is not observed in the Device Manager port list, it may be necessary to install Microchip

MCP2200 driver. (Search Internet by typing keyword” Microchip MCP2200 Driver”)

Step 6. Run the BT Chat Tool.exe on your PC and make sure the COM Port is connected.


a. Select the COM Port assigned to the BM77EVB

b. Verify default BaudRate is 115200

c. Click Connect button.

d. The Connect button will change into a Disconnect button after connected.

e. Text box to enter characters to transmit.

f. Click Send to transmit text is to SmartPhone over BM77EVB Bluetooth connection.


g. The Black text are sent from PC tool (Bluetooth EVB)

h. The Red texts are sent from smart phone

i. Click the check box of Burst Send will be continuous to send text from this tool.

j. Repeat column means the how many times these texts will be resend.

k. Interval means the interval between two records.

l. Clear button will clear up the texts on the screen.

Step 7. Install the Android BT Chat APP on the Android device.

The installation is performed by copying or downloading the “BTChat_V1.0.3.apk” file onto the Android device. The

APK file can be copied onto Android device by using an SD Card to transfer file, or plugging Android device into host

PC where Android device mounts as external USB drive (Android MTP is required on host). Once the APK file

copied onto Android device, follow the instructions below.

a. As shown below in left illustration, use and opening from file from Android File Manager “My Files” App. It

may be necessary to enable the “Unknown Sources” in Device Security settings.

b. After successful install, the BtChat APP is displayed in Application view

a b


Step 8. Pairing the BM77EVB to the Android Device

a. Open Settings/ Bluetooth page and ON the Turn On Bluetooth.

b. Press Scan the button in step 2 to initiate the Bluetooth Device scan

c. Find the BM77EVB device named “Dual-SPP” and select it to start the pairing process.

d. Once paired, the Dual-SPP (BM77EVB) device will be listed in paired device list.

a

b

c

d


Step 9. Launch the BtChat APP on Android Device

a. BT Chat APP main window is displayed.

b. Use the Android menu button to open BT Chat menu options. Select the “Setting” button to open APP

setting view.

c. Enable the “Show Rx Text” options. Press the “Back” button to return to main window.

a b c


Step 10. Setting up Bluetooth SPP connection to the BM77EVB device

a. From BT Chat APP main window, press the Android menu button to open BT Chat menu options. Select the

“Connect a device” button to open paired device list.

b. Select the “Dual-SPP” device to open an SPP connection to BM77EVB.

c. After connection is established the status message is displayed in main window.

a

b

c


Step 11. Transferring data from BM77 to Android Device via Bluetooth SPP connection

Launch the Bluetooth Chat application on host PC tool and set the correct COM port corresponding to the

BM77EVB.

a. Enter text to send in BTChat Android APP

b. Click “Send” to transmit text to BM77 connected to Bluetooth Chat on PC

c. Observe received text in red font color on Bluetooth Chat PC

d. Enter enter text to send in Bluetooth Chat PC

e. Click “Send” to transmit text to Android BTChat Android APP

f. Observe received text in BTChat Android APP

a b

c

d e

f


4.2. Bluetooth Low Energy Data Connection to iOS Device This demonstration show how serial data is transmitted from BM77EVB (via PC Chat) to an iOS device using

Bluetooth Low Energy connection. This demonstration uses ISSC BLETR APP to connection to the BM77EVB.

Bluetooth Low Energy is utilized since iOS devices do not support Bluetooth Classic SPP data connections. A key

feature of the BM77 is transparent serial data connection from BM77 UART to an iOS device.

a. Using an iPhone 4S or later, iPad3 or later device, download and install “ISSC BLETR” APP. As illustrated

below, the BLETR App is available on the AppStore.


b. Turn on the Bluetooth radio in iPhone, iPod or iPad Settings application.

c. Go to Settings/ General/ Bluetooth Page.

d. Turn ON the Bluetooth.

e. Launch the iSSC BLETR APP and it will scan the Bluetooth Low Energy Peripheral devices and list them. If

the device does not appear press the “Refresh” button to restart the BTLE peripheral scan. Find the

Dual-SPP BTLE peripheral device. Select it to start a connection to the BM77EVB named Dual-SPP.

f. After a successful connection to BM77EVB, BLETR will display the device as connected as shown below.


g. Select the connected Dual-SPP device to display the top level view. This view presents three options when

connected to a BM77EVB.

Transparent - View to display received data, send data, and enable features

Proprietary- This view sets Bluetooth Low Energy connection parameters

Device Info -This view displays the settings for Bluetooth Low Energy Device Information Service


h. Selecting “Transparent” button opens the transparent Serial Data view as shown below. The default mode is

Raw (ASCII) mode where any data characters received are displayed in the large text box in red font.

Data Mode Transfer


To send data from BLETR iOS device to the BM77, select the input text box. The soft keyboard will be displayed as

shown below. Enter text in the input text box. Click “Send” button to transmit text to BM77.

After clicking “Send” the text is received via the BM77 UART and displayed in the BT CHAT text window.


Timer Feature

In addition to Raw mode (ASCII) the Transparent data view also has Timer and Echo features. The Timer feature

allows the BLETR to send a repeated test pattern to BT CHAT for test throughput and data transfer test.

An example of the “Timer” test feature is shown below.

BLETR configured to transmit a 100 test blocks of 20 characters, every 1000ms. BT CHAT tool receives the test

pattern data and displays it in red text. The line break indicates a Bluetooth Low Energy packet break, meaning a

transmittted test block was fragmented into multiple BLE packets.

Clicking the “Start” button initiates the data transfer.


Tx File Feature

Another test feature similar to the Timer feature is the “TX File” transfer. The “TX File” functions transfers files, which

as embedded in the BLETR APP, to the BM77. The steps to use this feature are as follows:

a. Click the “TX File” button to open a dialog with list of file sizes to transmit

b. Select the file size to send

c. Observe the file received on BT Chat.

a

b

c


Echo Feature

The Echo feature is an optional function for the Transparent data view. When Echo is enabled, any data received by

BLETR is echoed back to sender.

The example below show text sent from BTCHAT being echoed to BLETR when the Echo mode is enabled.


Device Information Feature

The Device Information view displays the characteristics associated with Device Information service. The Device

Information service is available to all Bluetooth 4.0 low energy host that access the BM77EVB. It exposes the

information identifying information about the BM77 peripheral device. These values can be programmed using a

configuration tool described in the application note.


Proprietary (Configuration) Feature

The Proprietary view demonstrates the capability to change Bluetooth Low Energy connection parameters remotely

via BLETR application. These parameters only affect Bluetooth Low Energy connections.

1. Max Interval: time (ms) between communication interval between BM77 and Bluetooth LE Central device.

2. Connection Timeout: time (ms) between communication events before a connections considered lost

3. Latency: Number of connection events peripheral (BM77) is allowed to skip

4. Bluetooth LE Name used to advertise Peripheral name to scanning Central devices. Enter new name in text

box and click “Change Name” to invoke change.


5. Appendix A: BM77SPP03 Module PIN Assignment

EA

N

LEDP37

P05

P36P34

UA

RT

_CT

S /

P17

UA

RT

_RT

S /

P00

BT_RF1

P04

RST_N

UART_TXD

P20

P33

P15

BAT_IN

UART_RXD

P24

P31

WAKEUP

P13/SDAP12/SCL

U4

1

23456789

101112

30

2928272625242322212019

13 14 15 16 17 18

GND

BAT_INSW_BTNLDO33_OVDD_IOLDO18_OWAKEUP_SI1PMULDO_OP04P15P12 / SCLP13 / SDA

BT_RF

GNDLED1

P37P36

P34/SCLKP33/MOSIP32/MISOP31/NCSHCI_TXDHCI_RXD

RST_N

P17

P0_

5/T

X_C

LS1

P00

P20

P2_

4/R

X_C

LS1

EA

N

PMULDO_O P32

SW_BTN

BM77 Module PIN Define

P/N I/O Name Description

1 P GND Ground

2 P BAT_IN 4.2~3.3V Power input

3 I SW_BTN

Input for software button.

H: Power On

L: Power Off

4 P LDO33_O 3V3 LDO output

5 P VDD_IO Main power supply

6 P LDO18_O LDO18 output

7 I WAKEUP Wakeup BM77 from Shutdown State. (Low Active)

It is only valid while BM77 into Shutdown State.

8 P PMULDO_O Output of PMULDO

9 O P04

UART_TX_IND:

H: BM77 indicate UART data will be transmitted out after a certain timing.

(Setting by EEPROM, default 5ms)

L: Otherwise.

STATUS_IND_2:

BM77 State indication , refer to P15


P/N I/O Name Description

10 O P15

STATUS_IND:

Bluetooth link status indication

P15/P04: HH Power default value and Shutdown State.

P15/P04: HL Access State.

P15/P04: LL Link State w/o UART_TXD.

P15/P04: LH Link State with UART_TXD.

11 N/A P12/ SCL I2C_SCL, Reserved

12 N/A P13/ SDA I2C_SDA, Reserved

13 I P17 - UART_CTS:

- Configurable Functional GPIO

14 I/O P05 Configurable Functional GPIO

15 O P00 - UART_RTS

- Configurable Functional GPIO

16 I P20 System configuration, refer to P2_4. (No drive under APP Mode)

17 I P24

Boot mode selection. (No drive under APP Mode)

P2_0/ P2_4: HH Application

LL Boot mode

LH HCI UART mode for testing and system configuration.

18 I EAN ROM/Flash selection. (No drive under APP Mode)

H: ROM code; L: Flash code

19 I RST_N External reset input (Low Active), Clock period 62.5n at least

20 I HCI_RXD UART_RXD

21 O HCI_TXD UART_TXD


23 I P32 Configurable Functional GPIO



26 O P36 Reserved


28 O LED1 LED1 driver

29 P GND Ground

30 RI/O BT_RF RF Port


6. Appendix B: BM77EVB Schematic

U5RT9179PB

VIN1

EN3

ADJ4

VOUT5

GND2

VCC_2V4

C1310u/16V

C1510u/16V

R1930K/1%

12

C1410u/16V

C1610u/16V

R1730K/1%

12

U6RT9179PB

VIN1

EN3

ADJ4

VOUT5

GND2

R131K

12

R1830K/1%

12

VCC_HCI

5V

C1247u/16V

12

R1618K

12

EXT_3V3

D-V B U S

D -

D +

I D

G N D

P1

USBM3121-051-1-BN-R

12345

678 9

D+

D1LED-HR

12

R1256K

12

C1110u/16V

R1430K/1%

12

C1010u/16V

U3RT9179PB

VIN1

EN3

ADJ4

VOUT5

GND2

UA

RT

_TX

D

HCI_RXD UART_RXD

L e ve l S h ift

RX

C170.1u/16V

JP5JP 1x2

12

JP6JP 1x2

1 2

VCC_HCI

VCC_2V4

U9

SN74AHC1G08DCK

1

3 4

5

2

A

GND Y

VCC

B

C180.1u/16V

TX

C220.1u/16V

U8

SN74AHC1G08DCK

1

3 4

5

2

A

GND Y

VCC

B

U11

SN74AHC1G08DCK

1

3 4

5

2

A

GND Y

VCC

B

EXT_3V3HCI_TXD

ON

SW1SW-3BIT

123

4563V3

R94K7

12

R710

12

R84K7

12

P20P24EAN

C310u/16V

R230K/1%

12

C210u/16V

R168K

12

U1RT9179PB

1

3 4

5

2

VIN

EN ADJ

VOUT

GND

EXT_3V7

5V

FO R C U R R EN TM EA S U R E M EN T

B A T_ O N

U S B _ O N C410u/16V

VBAT

EXT_3V7

BAT

JP2JP 1x3

123

P24

BAT

JP4JP 1x8

12345678

EAN

P20

UART_RXDUART_TXD


RST_N

JP9JP 1x2

1 2

W AK E -U P R ES E T

CTS

JP7JP 1x2

1 2

SW2CTT-1131U

21

UART_RTS / P00RTS

SW3CTT-1131U

21

UART_CTS / P17

WAKEUP

VBAT

P33

3V3

P32

P36

P31

1V8

RST_N

P34

P20

EANP24P05

UART_RXD

LED

UART_CTS / P17

JP3JP 2x16

1 23 45 67 89 10

11 1213 1415 1617 1819 2021 2223 2425 2627 2829 3031 32

PMULDO_O

P15P12/SCL

SW_BTN

P13/SDA

P04

UART_RTS / P00

UART_TXD

WAKEUP

P37

JP1SJP 1x2

2

1

34BAT

C1

10u/16V

GP2GP3GP4

JP8JP 1x8

12345678

GP5GP6GP7

GP0GP1

SW_BTN

VBAT

SW5 PS-5177

11

22

33

66

55

44

R253K

1 2

X1X4P-12MHZ

41

32

TX

R2010K

12 EXT_3V3D+D-

GP7

U10MCP2200

123456789

10 11121314151617181920

VDDOSC1OSC2RSTGP7/TxLEDGP6/RxLEDGP5GP4GP3TX RTS

RXCTSGP2

GP1/USBCFGGP0/SSPND

VUSBD-D+

VSS

R241K

12

R21470

1 2

GP3

SW4CTT-1131U

21

GP4C230.1u/16V

EXT_3V3

C2112p/50V

C240.1u/16V

RTS

GP5GP6

C1912p/50V

GP2

EXT_3V3

CTS

C200.1u/16V

GP1GP0

RX

P0

5

3V3

P31

UA

RT

_C

TS

/ P

17

1V8

VBAT

P04

P2

0

CN1

SMA8401

3 24 5

1

3V3

P15

UA

RT

_R

TS

/ P

00

P2

4

WAKEUP

RF

C710u/16V

P13/SDAUART_RXDP12/SCL

LED1

LED-B

12BAT_IN

P32C610u/16V

PMULDO_O

SW_BTN

P36

P33

C81u/16V

L11nH

BT_RF1

P37

P34

U4

1

23456789

101112

30

2928272625242322212019

13 14 15 16 17 18

GND

BAT_INSW_BTNLDO33_OVDD_IOLDO18_OWAKEUP_SI1PMULDO_OP04P15P12 / SCLP13 / SDA

BT_RF

GNDLED1

P37P36

P34/SCLKP33/MOSIP32/MISOP31/NCSHCI_TXDHCI_RXD

RST_N

P1

7P

0_5

/TX

_CL

S1

P0

0P

20

P2

_4/R

X_

CLS

1E

AN

RST_N

UART_TXD

EA

N

C510u/16V

LED


U7

FP-BM77SPPA

G1

G2

GND3

BAT_IN4

SW_BTN5

LDO33_O6

VDD_IO7

LDO18_O8

WAKEUP_SI19

PMULDO_O10

P0411

P1512

P12 / SCL13

P13 / SDA14

P17

15

P0_

5/T

X_C

LS1

16

P00

17

P20

18

P2_

4/R

X_C

LS1

19

EA

N20

RS

T_N

21

GND31

LED130

P3729

P3628

P34/SCLK27

P33/MOSI26

P32/MISO25

P31/NCS24

HCI_TXD23

HCI_RXD22

G33

G32

LED

P34P33P32

P36

P31

P37

UART_TXDUART_RXD

WAKEUP

SW_BTNBAT_IN

P12/SCLP13/SDA

P15

PMULDO_OP04

VBAT

3V3

1V8

UA

RT

_RT

S /

P00

UA

RT

_CT

S /

P17

P20 EA

N

P05

P24

RS

T_N

P36

C2610u/16V P12/SCL

P13/SDA

JP10JP 1x2

1 2

3V33V3_CP

A P P L E C P c o n n e c t

CN2

SSQ-F-2x5-R

1 23 45 67 89 10

3V3_CP

R10

2K2/1%

12

3V3_CPP12/SCL

P13/SDA

R11

2K2/1%

1 23V3_CP


7. Appendix C: Q & A 1. Is the BM77 Module Data Sheet available?

Yes. Contact your Microchip representative to request additional information about the BM77 module.

2. When I connect the BM77EVB to the host PC the COM port does not appear?

Try resetting the MCP2200 by pressing SW4.

3. What is maximum supported baud rate of BM77 UART?

The maximum baud rate is 921600 with used with of 16MHz crystal.

4. How do you change Bluetooth parameters such name, Device Info, COD, rate, inquiry and page scan windows?

The configuration settings are accessed using a “UI Tool” software utility. Contact your Microchip representative

to request additional configuration tools and documentation for BM77.

5. What is default security mode for SPP?

SSP/It Just Works

6. Is there an Android BTLE demonstration application?

At this time Android support for dual-mode Bluetooth devices, such as the BM77, is limited to Bluetooth classic

SPP data service.

7. Is the source code for iOS and Android APP available

Contact your Microchip representative to request the source code packages for the smartphone Apps.


8. Appendix D: Revision History

Version Date History

0.1 2012/8/27 Draft Version

0.2 2014/06/12 Modify connect with Ipad air tool

0.3 2014/07/30 Modify layout

0.4 2014/10/03 Added screen shots for Smartphone Apps, revisions for MCHP BM77EVB release

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