STMicroelectronics X-NUCLEO-S2915A1 User Manual
Reklama
Reklama
UM2641
User manual
Getting started with the X-NUCLEO-S2915A1 Sub-1 GHz 915 MHz RF expansion board based on S2-LP radio for STM32 Nucleo
Introduction
The X-NUCLEO-S2915A1 expansion board is based on the S2-LP radio and operates in the 915 MHz ISM frequency band.
The expansion board is compatible with ST morpho and Arduino UNO R3 connectors.
The X-NUCLEO-S2915A1 interfaces with the STM32 Nucleo microcontroller via SPI connections and GPIO pins. You can change some of the GPIOs by mounting or removing the resistors.
Figure 1. X-NUCLEO-S2915A1 expansion board
UM2641 - Rev 2 - December 2021
For further information contact your local STMicroelectronics sales office.
www.st.com
1
Acronym
AMR
EEPROM
GHz
GUI
LED
MCU
P2P
RF
SPI
USB wM-Bus
WSN
Acronyms and abbreviations
Table 1. List of acronyms
Description
Automatic meter reading
Electrically erasable programmable read only memory
Giga Hertz
Graphical user interface
Light emitting diode
Microcontroller unit
Point-to-point communication
Radio frequency communication
Serial peripheral interface
Universal serial bus
Wireless metering bus
Wireless sensors network
UM2641
Acronyms and abbreviations
UM2641 - Rev 2 page 2/20
2
2.1
2.2
UM2641
Getting started
Getting started
Overview
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The X-NUCLEO-S2915A1 main features are:
• Based on S2-LP radio
S2-LP narrow band ultra-low power sub-1 GHz transceiver tuned for 860-940 MHz frequency band
Programmable RF output power up to +27 dBm
Modulation schemes: 2-FSK, 2-GFSK, 4-FSK, 4-GFSK, OOK and ASK
Air data rate from 0.1 to 500 kbps
Ultra-low power consumption: 7 mA RX and 10 mA TX at +10 dBm
IEEE 802.15.4g hardware packet support with whitening, FEC, CRC and dual SYNC word detection
RX and TX 128 byte FIFO buffers
Support to wireless M-Bus
Excellent performance of receiver sensitivity (up to -130 dBm)
Automatic acknowledgement, retransmission and timeout protocol engine
Compatible with STM32 Nucleo boards
Compatible with Arduino UNO R3 connectors
Sigfox compatible
Sample firmware for P2P communication
6LoWPAN compatible thanks to
FCC ID: S9NS2915A
IC ID: 8976C-S2915A1
RoHS and WEEE compliant
STM32Cube
•
•
•
•
Typical applications
The X-NUCLEO-S2915A1 expansion board can be used for the evaluation of the S2-LP device in multiple applications: wM-Bus application
Point-to-point communication protocol
6LoWPAN applications
SigFox communication
You can develop other applications for evaluating the devices, such as:
•
•
•
•
•
Automatic meter reading
Home and building automation
WSN
Industrial monitoring and control
Wireless fire and security alarm systems
UM2641 - Rev 2 page 3/20
2.3
UM2641
Hardware and software requirements
Hardware and software requirements
To use STM32 Nucleo development boards with the X-NUCLEO-S2915A1 expansion board, connect the boards as shown below.
Figure 2. X-NUCLEO-S2915A1 expansion board connected to an STM32 Nucleo development board
2.4
The interconnection between the STM32 Nucleo and the X-NUCLEO-S2915A1 has been designed to allow using any STM32 Nucleo board, although complete testing has been performed using NUCLEO-L053R8 , NUCLEO-
F401RE and NUCLEO-L152RE boards hosting the ultra-low power STM32.
The minimum hardware and software requirements are listed below:
• a PC/laptop with Microsoft Windows (7 and above) to install the software package ( X-CUBE-SUBG1 )
•
•
•
• a type A USB to mini-B USB cable to connect the STM32 Nucleo board to the PC/laptop
128 MB of RAM
Approximately 40 MB of hard disk space for the firmware
Approximately 15 MB of hard disk space for the wM-Bus GUI
The use of the wM-Bus concentrator with the GUI requires additional boards to be connected to the PC. The GUI can be used to check the wM-Bus communication protocol.
Board setup
Step 1.
Check that the jumper on JP1 connector is connected to provide the required voltage to the board devices.
Step 2.
Connect the X-NUCLEO-S2915A1 to the STM32 Nucleo board.
Step 3.
Power the STM32 Nucleo development board using the Mini-B USB cable.
Step 4.
Program the firmware in the STM32 on the STM32 Nucleo development board using the firmware sample provided.
Step 5.
Preset the reset button on the STM32 Nucleo development board.
The evaluation kit is ready-to-use.
UM2641 - Rev 2 page 4/20
UM2641
Hardware description and configuration
3
Hardware description and configuration
3.1
Interconnection details
The X-NUCLEO-S2915A1 expansion board and the NUCLEO-F401RE or NUCLEO-L152RE board connection details are listed in the table below.
NC
1
IOREF RESET
2
Table 2. X-NUCLEO-S2915A1 and NUCLEO-L152RE connection details (left connector)
3
3V3 GND
Signal name
3V3 5 V GND GND VIN A0 A1
Connector name
CN6 Power
4 5 6
Pin number
7 8
NUCLEO-L152RE MCU port
1 2
PA0 PA1
X-NUCLEO-S2915A1 expansion board signals
GND
A2
3
PA4
A3
CN8 Analog
4
PB0
A4
5
PC1
A5
6
PC0
GPIO0 CSN GPIO1 GPIO2
GPIO3
1. Optional connection.
Table 3. X-NUCLEO-S2915A1 and NUCLEO-L152RE connection details (right connector)
D15
10
PB8
SCL
D14
9
PB9
SDA
AREF GND
8 7
GND
D13 D12 D11 D10
Signal name
D9 D8
Connector name
D7 D6 D5 D4 D3 D2 D1 D0
6
CN5 Digital
PA5
SPI_C
LK
CN9 Digital
5 4
Pin number
3 2 1 8
NUCLEO-L152RE MCU port
7 6 5 4 3 2 1
PA6 PA7 PB6 PC7 PA9 PA8 PB10 PB4 PB5 PB3 PA10 PA2 PA3
X-NUCLEO-S2915A1 expansion board signals
SPI_MI
SO
SPI_M
OSI
SPI_C
SN
SDN
nS
SPI_
CLK
1. Optional connection.
3.2
SPI and GPIO connection options
The SPI and GPIO connection options between the STM32 Nucleo and S2-LP can be used to enable different configurations in case a signal conflict occurs when using other expansion boards.
S2-LP signal
CSn
CLK
Table 4. S2-LP interface with STM32 Nucleo board
Default STM32 port
PA1
PB3
Optional STM32 port
PB6
To use the optional connection, mount R9, unmount R13
PA5
To use the optional connection, mount R6, unmount R11
UM2641 - Rev 2 page 5/20
3.3
3.4
UM2641
Current measurement
S2-LP signal nS
SDN
Default STM32 port
PB4
PA8
Optional STM32 port
PA9
To use the optional connection, mount R7, unmount R19
PB10
To use the optional connection, mount R18, unmount R10
To use the optional connections, modify the firmware on the basis of the STM32 resources used.
Table 5. SKY66420 power amplifier settings
SKY66420
LNA OFF
SW1
LNA ON (default)
100 pF capacitor between pin1 and pin2 (pin1 and pin3 open)
100 pF capacitor between pin1 and pin3 (pin1 and pin2 open)
SW2
100 pF capacitor between pin1 and pin3 (pin1 and pin2 open)
100 pF capacitor between pin1 and pin2 (pin1 and pin3 open)
SKY66420 signal
GPIO0
GPIO1
GPIO2
Table 6. SKY66420 interface with STM32 Nucleo board
Default STM32 port
PA0
PA4
PB0
Optional STM32 port
PC1
To use optional connection mount R25, unmount R12
N.A.
N.A.
Current measurement
To monitor the X-NUCLEO-S2915A1 expansion board power consumption, use jumper J1: connect an ammeter probe between the connector pins 1 and 2 for measurements.
X-NUCLEO-S2915A1 component placement details
The figure below shows the component placement on the X-NUCLEO-S2915A1 expansion board.
UM2641 - Rev 2 page 6/20
UM2641
X-NUCLEO-S2915A1 component placement details
Figure 3. X-NUCLEO-S2915A1 on-board device placement
1.
Arduino UNO R3 left connector
2.
Arduino UNO R3 right connector
3.
S2-LP
4.
SKY66420
4
3
1 2
UM2641 - Rev 2 page 7/20
4
4.1
4.2
UM2641
X-NUCLEO-S2915A1 on-board device description
X-NUCLEO-S2915A1 on-board device description
S2-LP RF transceiver
The X-NUCLEO-S2915A1 expansion board is based on the S2-LP standalone RF transceiver. It operates in the
915 MHz ISM frequency band and wireless M-Bus.
The S2-LP narrow band ultra-low power sub-1 GHz transceiver is tuned for 430-470 MHz and 860 - 940 MHz frequency bands and programmable RF output power up to +16 dBm.
Table 7. S2-LP details
Features Description
Order code
Package
Operating voltage
S2-LPQTR
QFN24 4x4x1
1.8 to 3.6 V
SPI EEPROM
The M95640-R is a 64 Kbit serial SPI bus EEPROM with high-speed clock interface. The device can be used to store the configuration parameters related to S2-LP RF device application or settings.
Features
Order code
Package
Operating voltage
Description
M95640-RMC6TG
MLP8
1.8 to 5.5 V
UM2641 - Rev 2 page 8/20
5
Schematic diagrams
VDD
C1
C_4.7U_0402
VDDSMPS
C3
C30
C_220n_0402
C62
C_100p_0402
VRSYNTH
VDD
VDDVCOTX
C4
VDD
VDDANASYNTH
C5
C_220n_0402
1. 4 V t o 1. 8 V max
VSMPS2
VDDSMPS
OUT
IN
SDN
1
2
4
5
VDDSMPS
SMPS1
3
SMPS2
XOUT
XIN
6
SDN
VDD
VDDRXDIG
C11
Figure 4. X-NUCLEO-S2915A1 circuit schematic
+3V3
LNA ON: SW1 soldered a 100 pF cap between 1 - 2
SW2 soldered a 100 pF cap between 1 - 3
LNA OFF: SW1 soldered a 100 pF cap between 1 - 3
SW2 soldered a 100 pF cap between 1 - 2 nS
SDO
1 nS
2
3
Q nW
VCC nHOLD
C
4
VSS D
8
7
6
5
SCLK
SDI
C9
C_100n_0402
VDD
L29
120ohm
SCLK
SDI
18
17
SDO
16
VDDRXDIG
RXP
15
14
RXN
13
SCLK
SDI
SDO
VDDRXDIG
C48
C_1p2_0402
RX
RX 1
3
2
TX
GPIO0
1
2
3
4
TX
RX
TX_ALT
CSD
GND
TX_IN
GND
ANT
12
11
10
9
VDDANASYNTH
VRSYNTH
OUT 3
4
2
1 IN
C_1p5F_0402
L10
TX
2
VSMPS2
+3V3
+3V3
1
2
RESET
VCC
3
4
NC
GND
NC
SCL
NC
SDA
6
5
8
7 SCL
SDA
R43
2.2K
+3V3
+3V3
ARDUINO UNO R3 SX connector
Figure 5. X-NUCLEO-S2915A1 circuit schematic - Arduino connectors
ARDUINO UNO R3 DX connector
NC
IOREF
RESET
3V3
5V
GND
GND
VIN
CN6
6
7
8
4
5
1
2
3
IOREF
RESET
+5V
VIN
+3V3
JP1
1
JUMPER
2
VDD
SCLK
SDO
SDI
CSN
PC7 nS
R6
R4
R5
R9
R17
R7
SCL
SDA
AVDD
NM
0
0
NM
NM
NM
6
5
4
3
2
1
10
9
8
7
CN5
SCL
SDA
AREF
GND
SCK/D13
MISO/D12
MOSI/PWM/D11
PWM/D10
PWM/D9
D8
8 pass-through: male on bottom and female on top
Pass-through: male on bottom and female on top
A0
A1
A2
A3
A4
A5
CN8
6 pass-through: male on bottom and female on top
3
4
5
6
1
2
R12
R13
R14
R15
R18
R16
0
0
0
0
NM
0
GPIO0
CSN
GPIO1
GPIO2
GPIO0
GPIO3
PC7 R23 330
D11
LED
SDN
SDN nS
SCLK
R10
R18
R19
R11
0
NM
0
0
PA2
PA3
5
4
3
2
1
8
7
6
CN9
Pass-through: male on bottom and female on top
D7
D6
D5
D4
D3
D2
TXD/D1
RXD/D0
Figure 6. X-NUCLEO-S2915A1 circuit schematic - ST morpho connectors
ST morpho SX connector ST morpho DX connector
CN7 CN10
PC10
PC12
VDD
BOOT0
NC/PF6
NC/PF7
PA13
PA14
PA15
PB7
PC13
PC14
PC15
21
23
25
27
PH0/PF0/PD0 29
PH1/PF1/PD1
VLCD/VBAT
31
33
PC2
PC3
35
37
9
11
13
15
17
19
5
7
1
3
32
34
36
38
24
26
28
30
16
18
20
22
6
8
2
4
10
12
14
PC11
PD2
E5V
IOREF
RESET
+3V3
+5V
VIN
PA0
PA1
PA4
PB0
PC1
PC0
PC9
PB8
PB9
AVDD
15
17
19
21
23
25
27
29
31
33
35
37
1
3
5
7
9
11
13
PA5
PA6
PA7
PB6
PC7
PA9
PA8
PB10
PB4
PB5
PB3
PA10
PA2
PA3
22
24
26
28
14
16
18
20
6
8
2
4
10
12
30
32
34
36
38
PC8
PC6
PC5
U5V
PD8
PA12
PA11
PB12
PB11/NC
VDD
PB2
PB1
PB15
PB14
PB13
AGND
PC4
NC/PF5
NC/PF4
Pass-through: female on bottom and male on top
Pass-through: female on bottom and male on top
UM2641
Bill of materials
7
8
9
1
2
3
4
5
6
6
10
11
12
13
14
15
16
17
18
21
22
19
20
23
Item
2
2
1
9
2
1
6
7
1
1
1
1
1
2
1
1
1
1
4
1
1
1
Bill of materials
12
Qty
Table 8. X-NUCLEO-S2915A1 bill of materials
CN5
Ref.
CN6, CN9
Part/Value
CON10 550 V
AC mm pitch
2.54
CON8 550 V
AC
2.54
mm pitch
Description
Connector
Connectors
CN7, CN10 2.54 mm pitch
Header 19x2 (not mounted)
Connector CN8
C2, C5, C10,
C11, C22, C30,
C32, C36, C7
C3, C4, C6, C8,
C13, C24, C41,
C46, C47, C51,
C62, C17
CON6 550 V
AC
220 nF 16 V -20%,
+80% SMD-0402
100 pF 25 V ±5%
SMD-0402
C9, C52
C12
100 nF 16 V ±5%
SMD-0402
1 µF 25 V ±5%
SMD-0402
C16, C33, C38,
C42, C60, C61
R6, R7, R9,
R17, R18, C18,
R25
SMD-0402
SMD-0402
C25
C31
C34
C35
C37
C39, C40
C48
C44
C23, C43, C49,
C50
C53
C54
C55
C56
Capacitors
VBAT bypass capacitors
Decoupling capacitors
Capacitor
Capacitors (not mounted)
Resistors (not mounted)
470 pF 50 V ±10%
SMD-0402
2.2 pF 25 V ±5 %
SMD-0402
VREFVCO filter
Capacitors
3.3 pF 16 V ±5%
SMD-0402
5.6 pF 16 V ±5%
SMD-0402
Capacitors
Capacitors
2.4 pF 25 V SMD-0402 Capacitors
12 pF 16 V ±10%
SMD-0402
1.2 pF 16 V ±0.5%
SMD-0402
2.7 pF 16 V ±25%
SMD-0402
1.5 pF 10 V ±5%
SMD-0402
Capacitors
Capacitors
Capacitors
Capacitors
10 µF 16 V ±10%
SMD-0805
10 pF 50 V ±5%
SMD-0402
33 pF 5 0V ±5%
SMD-0402
1 nF 50 V ±10%
SMD-0402
Capacitors
Capacitors
Capacitors
Capacitors
Manufacturer
SAMTEC
SAMTEC
SAMTEC
Yageo
KEMET
Murata
Taiyo Yuden
Taiyo Yuden
Samsung Electro-
Mechanics
Order code
SSQ-110-03-F-S
SSQ-108-03-F-S
SSQ-106-03-F-S
CC0402ZRY5V7BB224
C0402C101J3GACTU
GRM155R71C104KA88D
TMK105BJ105MV-F
UMK105B7471KV
Wurth Electronics 8.85012E+11
Taiyo Yuden
AVX
AVX
Vishay
KEMET
KEMET
Wurth Electronics 885012005002
Yageo
Murata
Murata
EVK105CH3R3JW-F
0402YA5R6JAT2A
MP023J2R4BBSGTR\500
VJ0402A120KXJCW1BC
C0402C129D4GACTU
C0402C279C4GACTU
CL21A106KOQNNNG
311-1014-1-ND
GCM1555C1H330JA16D
GCM155R71H102KA37D
UM2641 - Rev 2 page 11/20
UM2641
Bill of materials
43
44
45
46
31
32
28
29
26
27
30
33
34
24
25
Item
40
41
42
37
38
35
36
39
4
1
1
1
1
1
1
2
1
2
1
1
1
3
2
1
1
1
1
Qty
47
10
1
1
3
2
L7, L14, L24,
L25
Ref.
C57, C1
C58
C59
D1
JP1
J1
L2
L3
L9, L28
L8
L10
L11
L12, L13
L26
L27
L29
L30
R1, R3, R2
R4, R5, R10,
R11, R12, R13,
R14, R15, R16,
R19
1/16 W ±1% SMD-0402 Resistor
R20
R23
R43, R44, R45
Part/Value
4.7 µF 10 V ±10%
SMD-0402
120 pF 50 V ±2%
SMD-0402
10 nF 16 V ±10%
SMD-0402
20 mA SMD-0603
WALCON.100/VH/T
M2OE/W.325/10/ MOD
Description
Capacitors
Capacitors
Capacitors
Red LED
Jumper
SMA antenna
10 µH 10 mA ±20%
603
4.7 nH 700 mA ±0.3%
0402
39 nH 300 mA ±5%
SMD_0402
6.8 nH 250 mA ±5%
SMD-0402
15 nH 300 mA ±5%
SMD-0402
5.6 nH 600 mA ±0.3
SMD-0402
27 nH 300 mA ±5%
SMD-0402
18 nH 400 mA ±5%
SMD-0402
7.5 nH 500 mA ±5%
SMD-0402
2.7 nH 900 mA ±3%
SMD-0402
120 Ohm 300 mA
SMD-0402
0.8 nH 1 A ±10%
SMD-0402
100 k 1/16 W ±1%
SMD-0402
Inductor
Inductor
Inductor
Inductor
Inductor
Inductor
Inductor
Inductor
Inductor
Ferrite bead
Inductor
Resistor
10 Ohm 1/16 W ±1%
SMD-0402
330 1/10 W ±5%
SMD-0402
2.2 K 1/16 W 0.01
SMD-0402
Resistor
Resistor
Resistor
SW1, SW2
SW KEY-SPDT (100 pF) 25 V ±5%
SMD-0402
VBAT bypass capacitors (SW1 :
1-3 NM SW2 : 1-2
NM)
Manufacturer
Murata
Murata
Taiyo Yuden
OSRAM
Any
LPRS
TDK Corporation
Murata
Murata
Johanson
Technology Inc.
Murata
Murata
Taiyo Yuden
Murata
Murata
Murata
Taiyo Yuden
TDK Corporation
Tyco Electronics
Tyco Electronics
Yageo
Panasonic
Yageo
Kemet
Order code
ZRB15XR61A475KE01D
GRM1555C1H121GA01D
EMK105B7103KV-F
LS Q976-NR-1
Any
ANT-900M
MLF1608E100M
LQG15HS4N7S02D
LQG15HS39NJ02D
L-07C6N8JV6T
LQG15HS15NJ02
LQG15HS5N6S02D
HK100527NJ-T
LQG15HS18NJ02D
LQG15HN7N5J02D
LQG15WZ2N7S02D
587-1836-1-ND
MLG1005S0N8BTD25
CRG0402F100K
CRG0402ZR
RC0402FR-0710RL
ERJ-2GEJ331X
RC0402FR-072K2L
C0402C101J3GACTU
UM2641 - Rev 2 page 12/20
49
50
51
52
48
Item
1
Qty
U1
Ref.
1
1
1
1
U2
U4
U5
Y1
UM2641
Bill of materials
Part/Value
M95640 8-SOIC
S2LP QFN-24L
SKY66420
Description
64 Kbit SPI bus
EEPROM with high-speed clock
STSAFE-A100 SO8N
Authentication and brand protection secure solution
(not mounted)
CRYSTAL_NX1612SA Crystal
ST
Ultra-low power, high performance, sub-1GHz transceiver
ST
860 to 930 MHz RF front-end module
Skyworks
ST
Manufacturer
NDK
Order code
M95640-RMN6
S2-LPQTR
SKY66420-11
STSAFE-A100
644-1297-1-ND
UM2641 - Rev 2 page 13/20
7
UM2641
Formal notices required by the U.S. Federal Communications Commission ("FCC")
Formal notices required by the U.S. Federal Communications
Commission ("FCC")
•
•
•
•
FCC NOTICE: This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
Changes or modifications not expressly approved by the manufacturer could void the user’s authority to operate the equipment.
Additional warnings for FCC
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part
15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference's by one or more of the following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and the receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.
UM2641 - Rev 2 page 14/20
8
UM2641
Formal product notice required by the Industry Canada ("IC")
Formal product notice required by the Industry Canada ("IC")
Innovation, Science and Economic Development Canada Compliance - This device complies with Innovation,
Science and Economic Development RSS standards. 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 interference that may cause undesired operation. Changes or modifications not expressly approved by the manufacturer could void the user’s authority to operate the equipment.
Conformité à Innovation, Sciences et Développement Économique Canada - Cet appareil est conforme aux normes RSS d'Innovation, Science et Développement économique. L'utilisation est soumise aux deux conditions suivantes: (1) cet appareil ne doit pas causer d'interférences nuisibles, et (2) cet appareil doit accepter de recevoir tous les types d’interférence, y comprises les interférences susceptibles d'entraîner un fonctionnement indésirable. Les changements ou les modifications non expressément approuvés par le fabricant pourraient annuler le permis d'utiliser l'équipement.
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Revision history
Date
18-Nov-2019
20-Dec-2021
Table 9. Document revision history
Revision
1
2
Changes
Initial release.
Updated
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Contents
Contents
7 Formal notices required by the U.S. Federal Communications Commission ("FCC") .
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List of tables
List of tables
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List of figures
List of figures
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IMPORTANT NOTICE – PLEASE READ CAREFULLY
STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications, and improvements to ST products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on ST products before placing orders. ST products are sold pursuant to ST’s terms and conditions of sale in place at the time of order acknowledgement.
Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the design of
Purchasers’ products.
No license, express or implied, to any intellectual property right is granted by ST herein.
Resale of ST products with provisions different from the information set forth herein shall void any warranty granted by ST for such product.
ST and the ST logo are trademarks of ST. For additional information about ST trademarks, please refer to www.st.com/trademarks . All other product or service names are the property of their respective owners.
Information in this document supersedes and replaces information previously supplied in any prior versions of this document.
© 2021 STMicroelectronics – All rights reserved
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