Page 1
UM2667
User manual
Getting started with the X-NUCLEO-BNRG2A1 BLE expansion board based on
BLUENRG-M2SP module for STM32 Nucleo
Introduction
The X-NUCLEO-BNRG2A1
plugged onto an STM32 Nucleo development board (e.g., NUCLEO-L476RG with ultra-low power STM32 microcontroller)
through its Arduino UNO R3 connectors.
The expansion board features the Bluetooth® v5.0 compliant and FCC certified BlueNRG-M2SP application processor module
based on the ST BlueNRG-2 System-on-Chip. This SoC manages the complete Bluetooth low energy stack and protocols on its
Cortex-M0 core and programmable Flash, which can accommodate custom applications developed using the SDK. The
BlueNRG-M2SP module supports master and slave modes, increased transfer rates with data length extension (DLE), and
AES-128 security encryption.
The X-NUCLEO-BNRG2A1 interfaces with the STM32 Nucleo microcontroller via SPI connections and GPIO pins, some of
which can be configured by the hardware.
expansion board provides Bluetooth low energy connectivity for developer applications and can be
Figure 1. X-NUCLEO-BNRG2A1 expansion board
UM2667 - Rev 1 - December 2019
For further information contact your local STMicroelectronics sales of
fice.
www.st.com
Page 2
1 Typical applications
The X-NUCLEO-BNRG2A1 expansion board can be used for the evaluation of the BlueNRG-M2 device in many
applications, such as:
•
point-to-point communication
• sensor application
• home automation and lighting
• direct test mode (DTM)
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Typical applications
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2 Acronyms and abbreviations
Table 1. List of acronyms
Acronym Description
EEPROM Electrically erasable programmable read only memory
GHz Giga Hertz
GUI Graphical user interface
LED Light emitting diode
MCU Microcontroller unit
P2P Point-to-point communication
RF Radio frequency communication
SPI Serial peripheral interface
SWD Serial wire debug
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Acronyms and abbreviations
UM2667 - Rev 1
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3 Getting started
3.1 Overview
The X-NUCLEO-BNRG2A1 expansion board main features are:
Based on the BlueNRG-M2SP module FCC certified module (FCC ID: S9NBNRGM2SP and IC: B976C-
•
BNRGM2SP)
• Compatible with STM32 Nucleo boards
• Equipped with Arduino UNO R3 connector
• Scalable solution, capable of cascading multiple boards for larger systems
• Free comprehensive development firmware library and examples for BlueNRG-2 compatible with
STM32Cube
• BlueNRG-M2SP:
– Bluetooth v5.0 compliant
– Supports master and slave modes
– BLE data packet length extension
– Embedded BALF-NRG-02D3 integrated matched balun with harmonic filter
• Interfaces:
– 1 UART, 1 I²C, 1 SPI, 14 GPIOs, 2 multifunction timers, 10-bit ADC, Watchdog & RTC, DMA controller,
PDM stream processor, SWD debug interface
• Small form factor: 11.5mmx13.5mm
• Complemented with Bluetooth low energy protocol stack library (GAP, GATT, SM, L2CAP, LL)
• AES security co-processor
• Bluetooth low energy SDK with a wide range of profiles
• Embedded BlueNRG-2 BLE SoC:
– High performance, ultra-low power Cortex-M0 32-bit based core
– Programmable embedded 256 KB Flash
– 24 KB embedded RAM with data retention
– Up to +8 dBm available output power
– Down to -88 dBm Rx sensitivity
– Up to 96 dB link budget with excellent link reliability
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Getting started
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3.2 Hardware and software requirements
To use STM32 Nucleo development boards with the X-NUCLEO-BNRG2A1 expansion board, connect the boards
as shown below
Figure 2. X-NUCLEO-BNRG2A1 expansion board connected to an STM32 Nucleo development board
.
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Hardware and software requirements
The X-NUCLEO-BNRG2A1 can be connected to any STM32 Nucleo
The following software and hardware specifications are required:
• a PC/laptop with Microsoft Windows (7 and above) to install the software package (X-CUBE-BLE2).
• DTM project to be flashed in the module
• a type A USB to mini-B USB cable to connect the STM32 Nucleo to the PC/laptop
• a 5-pin connector programming wire to program the X-NUCLEO-BNRG2A1 using the STM32 Nucleo
3.3 Board setup
Step 1. Check that the jumper on J10 connector is connected to provide the required voltage to the board
devices.
Step 2. Connect the X-NUCLEO-BNRG2A1 to the STM32 Nucleo board as shown in Figure 2.
Step 3. Connect jumper J14 to select the SPI clock for the SPI.
Step 4. Program the STM32 Nucleo
network coprocessor.
The evaluation kit is ready-to-use.
development board.
with the corresponding firmware to use the X-NUCLEO-BNRG2A1 as a
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Hardware description and configuration
4 Hardware description and configuration
4.1 Interconnection details
The X-NUCLEO-BNRG2A1 expansion board and the NUCLEO-L476RG development board connection details
are listed in the table below
Table 2. X-NUCLEO-BNRG2A1 and NUCLEO-L476RG connection details (left connector)
NC IOREF RESET +3V3 +5 V GND GNDS VIN A0 A1 A2 A3 A4 A5
CN6 Power CN8 Analog
1 2 3 4 5 6 7 8 1 2 3 4 5 6
NC IOREF RESET +3V3 +5 V GND GND VIN
.
Signal name
Connector name
Pin number
NUCLEO-L476RG MCU port
PA0 PA1 PA4 PB0 PC1 PC0
X-NUCLEO-BNRG2A1 expansion board signals
DIO7/
BOOT
SPI_CS
DIO1/
- - - -
UM2667
Table 3. X-NUCLEO-BNRG2A1 and NUCLEO-L476RG connection details (right connector)
Signal name
D15 D14 - - D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
Connector name
CN5 Digital CN9 Digital
Pin number
10 9 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1
NUCLEO-L476RG MCU port
PB8 PB9 AVDD GND PA5 PA6 PA7 PB6 PC7 PA9 PA8 PB10 PB4 PB5 PB3 PA10 PA2 PA3
X-NUCLEO-BNRG2A1 expansion board signals
- - AREF GND
DIO0/
SPI_CLKDIO2 DIO3 - - DIO4 - DIO6 DIO12 DIO14
DIO
0/
SPI_
CLK
DIO5
DIO
1
1/
SPI_
CS
DIO8
Note: To use PA1 as SPI_CS with DIO1 mount resistor R70.
o use PA1 as SPI_CS with DIO11 mount resistor R76.
T
To use PA2 as SPI_CS with DIO11 mount resistor R86.
To take control of RESET in the STM32 application with PA8, mount resistor R117.
4.2 SPI and GPIO connection options
UM2667 - Rev 1
The SPI and GPIO connection options between the STM32 Nucleo and BlueNRG-M2 on the X-NUCLEO-
BNRG2A1
expansion board can be used to enable different configurations in case a signal conflict occurs when
using other expansion boards.
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Page 7
Current measurement
Table 4. X-NUCLEO-BNRG2A1 interface with STM32 Nucleo development board
X-NUCLEO-BNRG2A1 BlueNRG-M2SP Default STM32 port Optional STM32 port
PA0_SPI_IRQ_PB14
_BNRG1BOOT
DIO1_SPI_CS DIO1 PA1 -
DIO11_SPI_CS DIO11 PA1
SPI_CLK DIO0
DIO7/BOOT PA0
PA5
JP14: pins 1-2 shorted
PB14
T
o use the optional port, mount R82 and unmount R85
PA2
T
o use the optional port, mount R86 and unmount R76
PB3
T
o use the optional port, short J14 pins 2 and 3
Table 5. X-NUCLEO-BNRG2A1 jumpers
Jumper Signals Description
J10 3.3 V Power connector
J11 User application
J12 SWD For SWD debugging/programming
J13 User application
J14 SPI_CLK
J15
PA0_SPI_IRQ
_PB14_BNRG1BOOT
To select the SPI clock pin PA5 or PB3
Default: pins 1-2 shorted
This jumper is connected to DIO7 of the BlueNRG-2 and must be shorted for boot pin high.
DIO7 can be used for Bootloader activation.
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4.3 Current measurement
To monitor the X-NUCLEO-BNRG2A1 expansion board power consumption, insert an ammeter probe between
pin 1 and 2 of the jumper J10 connector.
4.4 X-NUCLEO-BNRG2A1 component placement details
The figure below shows the component placement on the X-NUCLEO-BNRG2A1 expansion board.
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Figure 3. X-NUCLEO-BNRG2A1 on-board device placement
1.
ST morpho connector (not mounted by default)
2. Arduino UNO R3 connector
3. Arduino UNO R3 connector
4. BlueNRG-M2SP
5. J15 - boot pin jumper
6. J14 - SPI_CLK select jumper
7. ST morpho connector (not mounted by default)
8. Arduino UNO R3 connector
9. Arduino UNO R3 connector
10. J10 - power jumper
11. J11 - user application jumper
12. J12 - SWD jumper
13. J11 - user application jumper
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X-NUCLEO-BNRG2A1 component placement details
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X-NUCLEO-BNRG2A1 on-board device description
5 X-NUCLEO-BNRG2A1 on-board device description
5.1 BlueNRG-M2SP module
The BlueNRG-M2SP is a Bluetooth® low Energy System-on-Chip application processor certified module (FCC ID:
S9NBNRGM2SP
module supports multiple roles simultaneously and can simultaneously act as a Bluetooth Smart master and slave
device.
The BlueNRG-M2SP is based on BlueNRG-2 System-on-Chip and includes Bluetooth Low Energy stack and
protocols.
The device interfaces with STM32 Nucleo boards through SPI and GPIOs.
BlueNRG-M2SP Order code
SMD 23 pin Package
1.7- 3.6 V Operating Voltage
, IC ID: 8976C-BNRGM2SP), compliant with BT specifications v5.0 and BQE qualified. The
Table 6. BlueNRG-M2SP device details
Description Features
UM2667
5.2 SPI EEPROM
The M95640-RMC6TG 64 Kbit serial SPI bus EEPROM with high-speed clock interface can be mounted on the X-
NUCLEO-BNRG2A1 expansion board.
It can be used to store the configuration parameters related to application or settings of the BlueNRG-2 RF
device.
Its main features are:
•
Compatible with the Serial Peripheral Interface (SPI) bus
• Memory array – 64 Kb (8 Kbytes) of EEPROM – Page size: 32 bytes
• Write (byte write within 5 ms, page write within 5 ms)
• Additional Write lockable page (identification page)
• Write Protect: quarter, half or whole memory array
• High-speed clock: 20 MHz
Table 7. M95640-RMC6TG connection with NUCLEO-L476RG development board
M95640-RMC6TG EEPROM NUCLEO-L476RG Pin no. Connector name Signal name
D (PA7_SPI_MOSI) PA7 4 CN5 D11
Q(PA6_SPI_MISO) PA6 5 CN5 D12
C(SPI_CLK) PB3/PA5 4/6 CN9/CN5 D3/D13
/S(PB6_SPI_CSN) PB6 3 CN5 D10
Note: The SPI EEPROM IC is not mounted on the board.
T
o use PB3 or PA5 with C(SPI_CLK), select jumper J14.
To use PB6 as SPI_CSN, mount resistor R77.
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Table 8. M95640-RMC6TG device details
Description Features
M95640-RMC6TG Order code
MLP8 Package
1.8 to 5.5 V Operating voltage
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SPI EEPROM
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6 Schematic diagrams
3
5
SPI_CLK
PA5
C47
10nF,16V
D1
LED
BLUENRG-M2SP
20
DIO8
DIO1
18
R116
47K
PA10_USART_RXD
VDD
PB4_DIO12
1
ADC2
ANATEST1
14
3
6
15
2
R88
10K
U8
DIO1_SPI_CS
GND
17
2
PA8_RST
J14
SPI CLK CON
Vin
2
2
3
PA6_SPI_MISO
DIO4
PC7
19
DIO12
10
DIO11
SWTDIO
J11
CON4
8
PB5_DIO14
J12
SWD CON
PB5_DIO14
R78
220
J15
CON2
VDD
PB10_DIO6
5
4
ANT_TEST0/DIO14
3
11
PA3_DIO8
DIO3
SWTDIO
PA7_SPI_MOSI
16
DIO11_SPI_CS
2
PB3
3
ADC1
3V3
3V3
1
J13
Interface selector
PB5_DIO14
DIO6
9
VDD
DIO0
VDD
SPI_CLK
PA0_SPI_IRQ_PB14_BNRG1BOOT
SWTCK
C49
100nF
4
DIO5
12
DIO9
RESETN
7
PB10_DIO6
PA9_USART_TXD
PA8_RST
PA0_SPI_IRQ_PB14_BNRG1BOOT
1
SWTCK
2
DIO2
13
1
DOI10
DIO7/BOOT
1
1
PB4_DIO12
7
PA3
4
3V3
3
PWM/D10
6
D5
CN8
PC1
PA5
PA7
2
10
MISO/D12
CN9
4
D3
IOREF
6
A5
2
PC7
4
3
A1
1
7
PA1
VIN
R119
GND
AVDD
PA2
RESET
D8
MOSI/PWM/D11
1
D6
NC
5
A4
PA6
PB8
TXD/D1
PB5
SCL
9
8 Pass-Through:
Male on Bottom
and Female on
Top
6 Pass-Through:
Male on Bottom
and Female on
Top
Pass-Through:
Male on Bottom
and Female on
Top
Pass-Through:
Male on Bottom
and Female on
Top
4
PA0
D4
PC0
5
5V
2
6
6
GND
PA8
PA9
VIN
+5V
SCK/D13
PB10
PWM/D9
7
CN6
1
A3
NC
PA10
PB4
SDA
PA4
PB0
AREF
8
5
A0
CN5
5
PB6
PB9
RXD/D0
Arduino UNO R3 SX Connector Arduino UNO R3 DX Connector
1
D2
3
8
GND
RESET
IOREF
2
3
8
D7
+3V3
A2
PB3
10K
Figure 4. X-NUCLEO-BNRG2A1 schematic diagram - BlueNRG-M2SP
UM2667
Schematic diagrams
Figure 5. X-NUCLEO-BNRG2A1 schematic diagram - Arduino connectors
UM2667 - Rev 1
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Page 12
Figure 6. X-NUCLEO-BNRG2A1 schematic diagram - morpho connectors
PA6
PB2
PC5
19
38
22
PC14
15
23
13
25
37
CN10
12
PA0
+5V
4
26
PC11
PB0
24
PB7
PA2
PA11
PA7
VLCD/VBAT
5
3
5
PB14
7
PA15
NC
22
37
29
PA10
PC1
PB9
U5V
30
PC15
21
27
23
11
8
6
2
15
PA1
10
8
32
PC3
PC9
BOOT0
Pass-Through: Female on
Bottom and Male on Top
Pass-Through: Female on
Bottom and Male on Top
NC/PF5
PA12
27
PB6
AGND
20
VDD
PC2
1
3
PB15
36
38
+3V3
20
2
19
33
1
PA8
31
PC0
AVDD
PA13
PB3
34
PB11/NC
PD8
PC7
PH0/PF0/PD0
26 25
10
24
13
28
18
VIN
36
30
E5V
29
PB5
PB8
NC/PF4
PC8
PA5
PC4
PC12
16
18
12
CN10CN7
PB1
PC6
9
21
34
PC10
PC13
4
17 17
6
35
28
RESET
PA4
NC/PF7
CN7
PB10
ST morpho SX Connector
PA3
32
PB12
PA9
PH1/PF1/PD1
14
NC/PF6
7
PB13
9
PA14
11
35
14
IOREF
33
16
NC
PD2
31
PB4
ST morpho DX Connector
3
VCC
U9
M95640-RMC6TG
R74
100K
SPI_CLK
8
C48
GND
Ex_Pad
9
PB6_SPI_CSN
4
+3V3
PA6_SPI_MISO
/W
7
/HOLD
PA7_SPI_MOSI
/S
Q
R75
100K
1
2
C
6
D
5
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Schematic diagrams
Figure 7. X-NUCLEO-BNRG2A1 schematic diagram - M95640-RMC6TG
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Page 13
Figure 8. X-NUCLEO-BNRG2A1 schematic diagram - resistor mapping
DIO11_SPI_CS
R730
EEPROM
R800
PB14
PA8_RST
R81 NM
R860
R770 R850
21
PB4_DIO12
PA0_SPI_IRQ_PB14_BNRG1BOOT
R710
PB10_DIO6
R87 NM
J10
R84 NM
PB5_DIO14
3V3
PA6
PA1
R83 NM
PB5
R117 NM
PA10_USART_RXD
PB6
R700
PA0_SPI_IRQ_PB14_BNRG1BOOT
PB4
R790
USART
PA10
PA7
R820
PB10
VDD
DIO1_SPI_CS
PA9_USART_TXD
PA6_SPI_MISO
PA3_DIO8
PA7_SPI_MOSI
PA2
R760
PA9
PB6_SPI_CSN
PA3
PA0
PA8
SPBTLE
+3V3
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Schematic diagrams
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Page 14
7 Bill of materials
Item Q.ty Ref. Part/Value Description Manufacturer Order code
1 1 U8 SMD 20 PIN
2 2 U9
1 1 CN5
2 2 CN6, CN9
3 3 CN7, CN10
4 4 CN8
5 5 J10
6 6 J11
7 7 J12
8 8 J13
9 9 J14
10 10 J15
1 1 C47
2 2 C48
Table 9. X-NUCLEO-BNRG2A1 bill of materials
Very low power
application
UFDFPN8 (MC) 2
x 3 mm
Pass-through:
male on bottom,
female on top.
10x1 2.54 mm
pitch
Pass-through:
male on bottom,
female on top.
8x1 2.54 mm
pitch
Pass-through:
female on bottom,
male on top. 19x2
2.54 mm pitch
Pass-through:
male on bottom,
female on top.
6x1 2.54 mm
pitch
2 pin connector,
2.54mm pitch
3 pin connector,
2.54mm pitch
5 pin connector,
2.54mm pitch
3 pin connector,
2.54mm pitch
3 pin connector,
2.54mm pitch
2pin connector,
2.54mm pitch
10 nF,16 V SMD
0805
100 nF,16 V 'SMD
0805
processor module
for Bluetooth® low
energy v5.0
64 Kbit SPI bus
EEPROM with
high-speed clock
Arduino
connector CN5 10
pins
Arduino
connectors CN6
and CN9 8 pins
ST morpho
connectors CN7
and CN10 38 pins
(not mounted)
Arduino
connector CN8 6
pins
Power supply
connector to
module VDD
Jumper Any Any
SWD
programming
connector
Interface selector Any Any
SPI1_CLK
selection between
D13 and D3 pin of
Arduino
connector
Boot pin connect
to VDD , for wake
up device when in
sleep
Capacitor Any Any
Capacitor Any Any
ST BlueNRG-M2SP
ST M95640-RMC6TG
SAMTEC SSQ-110-03-F-S
SAMTEC SSQ-108-03-F-S
SAMTEC
SAMTEC SSQ-106-03-G-S
Any Any
Any Any
Any Any
Any Any
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Bill of materials
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Page 15
UM2667
Bill of materials
Item Q.ty Ref. Part/Value Description Manufacturer Order code
3 3 C49
1 1
2 2 R74, R75 SMD 0805 100K Any Any
3 3 R78 220, 'SMD 0805 Resistors Any Any
4 4
5 5 R88, R119 10 K, SMD 0805 Resistors Any Any
6 6 R116 47 K, 'SMD 0805 Resistor Any Any
1 1 D1 SMD 0805 Yellow LED Dialight 598-8150-107f
R71, R73, R76,
R77, R79, R80,
R82, R85
R81,R83,R84,R8
7,R1
17,R70,R86
100 nF,16 V SMD
0805
SMD 0805 Resistors Any Any
SMD 0805
Capacitor Any Any
Resistor (not
mounted)
Any Any
UM2667 - Rev 1
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Page 16
Formal notices required by the U.S. Federal Communications Commission ("FCC")
8 Formal notices required by the U.S. Federal Communications
Commission ("FCC")
Any changes or modifications to this equipment not expressly approved by STMicroelectronics may cause
harmful interference and void the user's authority to operate this equipment.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this
device may not cause harmful interference, and (2) this device must accept any interference received, including
any interference that may cause undesired operation.
This device uses, generates and radiated radio frequency energy
device is well below the maximum exposure allows by Federal Communications Commission (FCC).
The X-NUCLEO-BNRG2A1 contains FCC certified module BlueNRG-M2SP (FCC ID: S9NBNRGM2SP).
. The radio frequency energy produced by this
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Formal notices required by the Industry Canada ("IC")
9 Formal notices required by the Industry Canada ("IC")
English:
This device complies with Industry Canada licence-exempt RSS standard(s). Operation is subject to the following
two conditions: (1) this device may not cause interference, and (2) this device must accept any interference,
including interference that may cause undesired operation of the device.
French:
Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de
licence. 'exploitation est autorisée aux deux conditions suivantes: (1) l'appareil ne doit pas produire de brouillage,
et (2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est
susceptible d'en compromettre le fonctionnement.
The X-NUCLEO-BNRG2A1 contains FCC certified module BlueNRG-M2SP (FCC ID: S9NBNRGM2SP).
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Revision history
able 10. Document revision history
T
Date Revision Changes
17-Dec-2019 1 Initial release.
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Contents
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Contents
1 T
ypical applications ...............................................................2
2 Acronyms and abbreviations ......................................................3
3 Getting started ....................................................................4
3.1 Overview .....................................................................4
3.2 Hardware and software requirements..............................................4
3.3 Board setup ...................................................................5
4 Hardware description and configuration ...........................................6
4.1 Interconnection details ..........................................................6
4.2 SPI and GPIO connection options ................................................6
4.3 Current measurement...........................................................7
4.4 X-NUCLEO-BNRG2A1 component placement details ................................7
5 X-NUCLEO-BNRG2A1 on-board device description.................................9
5.1 BlueNRG-M2SP module ........................................................9
5.2 SPI EEPROM .................................................................9
6 Schematic diagrams ..............................................................11
7 Bill of materials...................................................................14
8 Formal notices required by the U.S. Federal Communications Commission ("FCC") .
...................................................................................16
9 Formal notices required by the Industry Canada ("IC") ............................17
Revision history .......................................................................18
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UM2667
List of tables
List of tables
able 1. List of acronyms ....................................................................3
T
Table 2. X-NUCLEO-BNRG2A1 and NUCLEO-L476RG connection details (left connector) ....................... 6
Table 3. X-NUCLEO-BNRG2A1 and NUCLEO-L476RG connection details (right connector) ......................6
Table 4. X-NUCLEO-BNRG2A1 interface with STM32 Nucleo development board ............................. 7
Table 5. X-NUCLEO-BNRG2A1 jumpers .......................................................... 7
Table 6. BlueNRG-M2SP device details ..........................................................9
Table 7. M95640-RMC6TG connection with NUCLEO-L476RG development board ............................9
Table 8. M95640-RMC6TG device details ........................................................ 10
Table 9. X-NUCLEO-BNRG2A1 bill of materials ....................................................14
Table 10. Document revision history .............................................................18
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UM2667
List of figures
List of figures
Figure 1. X-NUCLEO-BNRG2A1 expansion board ..................................................1
Figure 2. X-NUCLEO-BNRG2A1 expansion board connected to an STM32 Nucleo development board .............5
Figure 3. X-NUCLEO-BNRG2A1 on-board device placement ...........................................8
Figure 4. X-NUCLEO-BNRG2A1 schematic diagram - BlueNRG-M2SP ................................... 1
Figure 5. X-NUCLEO-BNRG2A1 schematic diagram - Arduino connectors................................. 11
Figure 6. X-NUCLEO-BNRG2A1 schematic diagram - morpho connectors................................. 12
Figure 7. X-NUCLEO-BNRG2A1 schematic diagram - M95640-RMC6TG ................................. 12
Figure 8. X-NUCLEO-BNRG2A1 schematic diagram - resistor mapping .................................. 13
1
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UM2667
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