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ISSC BM77EVB, User Manual

The ISSC BM77EVB product offers advanced features for electronic devices. To get the most out of your device, make sure to download the free User Manual from manualshive.com. This manual provides detailed instructions on how to optimize the functionality of your ISSC BM77EVB product. Download the manual now for free!

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© 2014 ISSC Technologies Corp. 

5 

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_O

3V3

VDD_IO
LDO18_O

1V8

SW_BTN

EXT_3V3

MCP2200

VDD
VUSB

TX

RX

U11

U8/U9

VCC_HCI

VCC_2V4/

EXT_3V3

JP6

JP5

TXD

RXD

M_RX

U_RX

M_TX

U_TX

UART_

C

TS

/P

17

UART_

R

TS

/P

00

CTS

RTS

JP7

M_CTS

U_RTS

JP9

M_RTS

U_CTS

SW1

ON

123

WAKEUP

LED1

P24

EAN

RST_

N

P20

P24

EAN

P20

3V3

P24

EAN

P20

AP

P

TE

ST

WRITE

FLA

S

H

ON

ON

ON

123

System Configuration

MODE

VCC_2V4

VCC_HCI

LED1

D1

3V3

RESET

RED

BLUE

U10

P12/SCL
P13/SDA

External I2C

JP10

3V3

P37

P36

P34

P33

P32

P31

(1.8V)

P04
P15

PMULDO_O

P05

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

 

Summary of Contents for BM77EVB

Page 1: ...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...

Page 2: ...ch 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 Con...

Page 3: ...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 provid...

Page 4: ...nergy 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...

Page 5: ...EXT_3V3 JP6 JP5 TXD RXD M_RX U_RX M_TX U_TX UART_CTS P17 UART_RTS P00 CTS RTS JP7 M_CTS U_RTS JP9 M_RTS U_CTS SW1 ON 1 2 3 WAKEUP LED1 P24 EAN RST_N P20 P24 EAN P20 3V3 P24 EAN P20 APP TEST WRITE FLAS...

Page 6: ...n 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...

Page 7: ...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 Rese...

Page 8: ...2014 ISSC Technologies Corp 8 3 EAN Low Application default 1 P20 High 2 P24 High 3 EAN Low...

Page 9: ...upport 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 mic...

Page 10: ...he 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...

Page 11: ...he 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...

Page 12: ...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...

Page 13: ...ings 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 pro...

Page 14: ...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 opt...

Page 15: ...rom 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 connect...

Page 16: ...ect 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 o...

Page 17: ...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...

Page 18: ...SSC 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 BT...

Page 19: ...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 paramet...

Page 20: ...p 20 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 r...

Page 21: ...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 re...

Page 22: ...hroughput 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...

Page 23: ...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 lis...

Page 24: ...e 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 ech...

Page 25: ...ciated 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...

Page 26: ...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...

Page 27: ...S HCI_TXD HCI_RXD RST_N P17 P0_5 TX_CLS1 P00 P20 P2_4 RX_CLS1 EAN 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 fo...

Page 28: ...tem 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...

Page 29: ...RT9179PB VIN 1 EN 3 ADJ 4 VOUT 5 GND 2 UART_TXD HCI_RXD UART_RXD Level Shift RX C17 0 1u 16V JP5 JP 1x2 1 2 JP6 JP 1x2 1 2 VCC_HCI VCC_2V4 U9 SN74AHC1G08DCK 1 3 4 5 2 A GND Y VCC B C18 0 1u 16V TX C2...

Page 30: ...10 11 12 13 14 15 16 17 18 19 20 VDD OSC1 OSC2 RST GP7 TxLED GP6 RxLED GP5 GP4 GP3 TX RTS RX CTS GP2 GP1 USBCFG GP0 SSPND VUSB D D VSS R24 1K 1 2 R21 470 1 2 GP3 SW4 CTT 1131U 2 1 GP4 C23 0 1u 16V EX...

Page 31: ...1 30 P37 29 P36 28 P34 SCLK 27 P33 MOSI 26 P32 MISO 25 P31 NCS 24 HCI_TXD 23 HCI_RXD 22 G 33 G 32 LED P34 P33 P32 P36 P31 P37 UART_TXD UART_RXD WAKEUP SW_BTN BAT_IN P12 SCL P13 SDA P15 PMULDO_O P04 VB...

Page 32: ...th 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 add...

Page 33: ...dix 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 A...

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