Banana Pi Linaro 96Boards BC95-B20 User manual

BANANA PI BC-95 NB-IoT
www.banana-pi.org
BPI NB-IoT Linaro 96Boars BC95
User Manual
1. Hardware introduction
2. Software introduction
3. How to setup and start

BANANA PI BC-95 NB-IoT
www.banana-pi.org
一 Hardware introduction
There are two major components on the board,namely NB-IoT module and
MCU, their specs are below:
1. NB-IoT module:
NB-IoT module：Quectel BC95-B5/8/20 or BC95-G
Model and Frequency band：
Model BC95-B20 BC95-B5 BC95-B8 BC95-G
Frequency 800MHz 850MHz 900MHz
B1/B3/B5/B8/B20/B28
@FDD-LTE (TBD)
SIM card：
1).Micro SD SIM Slot
2).e-SIM optional(footprint reserved on the board)
Antenna： IPEX antenna connector
2. MCU:
BC95-B5/8/20 BC95-G
SoC STM32F103RCT6 STM32F103RBT6
CPU
FLASH 256KB 128KB
RAM 48KB 20KB
Functions
ARM 32-bit Cortex™-M3 CPU @72MHz
UART、I2C、SPI、PWM

BANANA PI BC-95 NB-IoT
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3. Development board :
Hardware Specification of BPi BC95-LINARO
Soc
STM32F103RBT6
CPU
ARM 32-bit Cortex™-M3 CPU @72MHz
SDRAM size
20 KB
Flash size
128KB
Power
5V/2A via MicroUSB / 2PIN Battery Connector
Features
Low-level
peripherals
40 Pins Header (2.0mm Pitch), 32×GPIOs,
Some of which can be used for specific functions including UART, I2C, SPI,
PWM
On board Network
Quectel BC95
On board SIM
MicroSD SIM Slot
eSIM(option)
USB
1 USB 2.0 host
Buttons
Reset button, User button
Leds
1 Power status Led and 5 other Leds
Sizes
60 mm ×30mm
Weight
10g

BANANA PI BC-95 NB-IoT
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Pictures of the board:

BANANA PI BC-95 NB-IoT
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Dimensions:

BANANA PI BC-95 NB-IoT
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GPIO specification
Banana Pi 40-pin GPIO(2.0mm pitch)
Following is the Banana Pi GPIO Pin-out:
BPI-BC95 40PIN GPIO (CON1)
GPIO Pin Name
Default
Function
Function2：
GPIO
CON1-P01
GND
CON1-P02
GND
CON1-P03
MCU_USART2_
RTS
PA1
CON1-P04
GPIO_PC6
PC6
CON1-P05
MCU_USART2_
RX
PA3
CON1-P06
RST_BTN
CON1-P07
MCU_USART2_
TX
PA2
CON1-P08
SPI1_SCK
PA5
CON1-P09
MCU_USART2_
CTS
PA0
CON1-P10
SPI1_MISO
PA6
CON1-P11
GPIO_PB8
PB8
CON1-P12
SPI1_NSS
PA4
CON1-P13
GPIO_PB9
PB9
CON1-P14
SPI1_MOSI
PA7
CON1-P15
I2C1_SCL
PB6
CON1-P16
GPIO_PC13
PC13
CON1-P17
I2C1_SDA
PB7
CON1-P18
GPIO_PA15
PA15
CON1-P19
I2C2_SCL
PB10
CON1-P20
GPIO_PB0
PB0
CON1-P21
I2C2_SDA
PB11
CON1-P22
GPIO_PB1
PB1
CON1-P23
USART1_CK
PA8
CON1-P24
SPI2_NSS
PB12
CON1-P25
USART1_TX
PA9
CON1-P26
SPI2_SCK
PB13
CON1-P27
USART1_RX
PA10
CON1-P28
SPI2_MISO
PB14
CON1-P29
USART5_CK
PB5
CON1-P30
SPI2_MOSI
PB15

BANANA PI BC-95 NB-IoT
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CON1-P31
USART5_TX
PB3
CON1-P32
USART4_RX
PC11
CON1-P33
USART5_RX
PB4
CON1-P34
USART4_TX
PC10
CON1-P35
VCC_1.8V
CON1-P36
NC
CON1-P37
VCC_5V
CON1-P38
NC
CON1-P39
GND
CON1-P40
GND
SWD(CN1)
CSI Pin Name
Default
Function
Function2：
GPIO
CN1-P1
VCC
CN1-P2
GND
CN1-P3
SWCLK
PA14
CN1-P4
SWDIO
PA13
CN1-P5
RESET-ST
Debug UART(CON2)
CON2-P1
GND
CON2-P2
USART1_RX
PA9
CON2-P3
USART1_TX
PA10

BANANA PI BC-95 NB-IoT
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BANANA PI BC-95 NB-IoT
www.banana-pi.org
二 Software introduction
1. Lite OS brief
Huawei LiteOS is a lightweight open-source IoT OS and a smart hardware
development platform. It simplifies IoT device development and device connectivity, makes
services smarter, delivers superb user experience, and provides better data protection.
Huawei LiteOS is designed for smart homes, wearables, IoV, and intelligent manufacturing
applications.
For more about Lite OS please refer to: http://developer.huawei.com/ict/en/site-
iot/product/liteos
IDE：recommended development environment is MDK521 + STM32F1xxx library
2. BC95 software brief:
Command format:
Searching network steps:
AT+NBAND? //Query Band
AT+CFUN? //value :1
AT+CIMI //Query IMSI number
AT+CSQ /Query the signal strength
AT+NUESTATS //Query module status
AT+CGATT? // Back + CGATT: 1 indicates that the attachment is
successful, with a delay of about 30s
AT+CEREG? // Search for network status, 1 for Internet, 2 for Network
AT+CSCON? // Query the connection status, 1 CONNECT, 0 IDLE

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Manually configure network if fails to register network automatically:
AT+CFUN=1
AT+CIMI // Execute CFUN = 1, wait for 4 seconds to query IMSI, if it
can be found that the card has been identified; If not, please check
the card is inserted and confirm whether it is a USIM card.
AT+NBAND? // Query frequency band information.
AT+CEREG=1 // Set to automatically register network registration
status, when the module registered on the network, will report
URC.AT+CGDCONT=1,“IP”,“APN” // The APN is configured locally (or not
configured) for local access.
AT+COPS=1,2,"46000" // Specify PLMN search, PLMN configuration.
AT+CSQ // Query signal strength.
AT+NUESTATS // Query module status
AT+CGATT? // Back + CGATT: 1 indicates that the attachment is
successful, with a delay of about 30s
AT+CEREG? // Search for network status, 1 for Internet, 2 for
Network
AT+CSCON? // Query the connection status, 1 CONNECT, 0 IDLE
Network connectivity status chart:
1. Connect status (+ CSCON: 0, 1, the module is in this state after network
injection), the duration of this state is configured by the base station,
and from
From time to time to control the device, the range of 1-3600s, the default
20s.
2. Idle state (+ CSCON: 0,0), this state lasts the time to dispose by the
key network, by Active timer (T3324) Come
Control, the range of 0-11160s, the default 10s.
3. PSM state (Judgment by power consumption, the maximum power consumption
5uA), the duration of the state by the core network configuration, set by
the TAU
Timer (T3412) to control the range of 0h-310h, the default 24h.

BANANA PI BC-95 NB-IoT
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BANANA PI BC-95 NB-IoT
www.banana-pi.org
三 How to setup and start to use
1. Hardware preparation:
BPI OPEN DEBUGGER or J-Link DEBUGGER *1
BPI BC95-Linaro development board *1
Micro USB cable *2
Dupont lines (female female) *4
2. Hardware hookup
There are two ways to flash by either BPI OPEN DEBUGGER or J-Link DEBUGGER:
1) BPI OPEN DEBUGGER：
Using Dupont lines to connect BPI OPEN DEBUGGER with BPI BC95-Linaro SWD
port，the connection are below:

BANANA PI BC-95 NB-IoT
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BPI OPEN DEBUGGER
BPI NB-IoT Linaro SWD
3V3
VCC
GND
GND
DIO
DIO
CLK
CLK
2) J-Link DEBUGGER：
The corresponding connection between JLink and BPI BC95 are the following:

BANANA PI BC-95 NB-IoT
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J-link
BPI NB-IoT Linaro SWD
3V3 (Pin1)
VCC
GND (Pin4.6.8.10……)
GND
SWDIO (Pin7)
DIO
SWCLK (Pin9)
CLK
nJTRST （Pin3）optional
RST (optional)
3. Software debugging setting:
MDK5 setting:
Create a project choosing the right chip,and set the Options of Target as follows:

BANANA PI BC-95 NB-IoT
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4. Software sample cases:
There are two samples in BPI forum, please refer to the following links:
1. https://github.com/yelvlab/BPI_NB-
IoT_Linaro_96Boards/tree/master/example/Debugger_USART
2. https://github.com/yelvlab/BPI_NB-
IoT_Linaro_96Boards/tree/master/example/Debugger_Virtual_USB
3. And there are some more information about the development board on github:
https://github.com/yelvlab/BPI_NB-IoT_Linaro_96Boards
5. Github code :
HUAWEI LiteOS:
https://github.com/LITEOS/LiteOS_Partner_Development_Kits/tree/master/LiteOS_BPI_
Development_Kit