STMicroelectronics NUCLEO-WBA55CG User Manual

UM3301
User manual
STM32WBA Nucleo-64 board (MB1803)
Introduction
NUCLEO-WBA55CG is a wireless and ultra-low-power board embedding a powerful and ultra‑low‑power radio compliant with
the Bluetooth® Low Energy SIG specification v5.4, IEEE 802.15.4-2015 PHY and MAC, supporting Thread®, Matter, and
Zigbee®.
The ARDUINO® Uno V3 connectivity support and the ST morpho headers allow the easy expansion of the functionality of the
STM32 Nucleo open development platform with a wide choice of specialized shields.
Figure 1. NUCLEO-WBA55CG global view
Picture is not contractual.
UM3301 - Rev 1 - April 2024
For further information contact your local STMicroelectronics sales office.
www.st.com
UM3301
Features
1
Features
•
•
•
•
•
Ultra-low-power wireless STM32WBA55CG microcontroller based on the Arm® Cortex®‑M33 core,
featuring 1 Mbyte of flash memory and 128 Kbytes of SRAM in a UFQFPN48 package
MCU RF board (MB1803):
–
2.4 GHz RF transceiver supporting Bluetooth® specification v5.4
–
IEEE 802.15.4-2015 PHY and MAC, supporting Thread®, Matter, and Zigbee®
–
Arm® Cortex®‑M33 CPU with Arm® TrustZone®, MPU, DSP, and FPU
–
Integrated PCB antenna
Three user LEDs
Three user push-buttons and one reset push-button
Board connectors:
–
•
•
•
•
Note:
UM3301 - Rev 1
USB Type-C®
–
ARDUINO® Uno V3 expansion connector
–
ST morpho headers for full access to all STM32 I/Os
Flexible power-supply options: ST-LINK USB VBUS or external sources
On-board STLINK-V3EC debugger/programmer with USB re-enumeration capability: mass storage, Virtual
COM port, and debug port
Comprehensive free software libraries and examples available with the STM32CubeWBA MCU Package
Support of a wide choice of Integrated Development Environments (IDEs) including IAR Embedded
Workbench®, MDK-ARM, and STM32CubeIDE
Arm and TrustZone are registered trademarks of Arm Limited (or its subsidiaries) in the US and/or elsewhere.
page 2/45
UM3301
Ordering information
2
Ordering information
To order the NUCLEO-WBA55CG board, refer to Table 1. Additional information is available from the datasheet
and reference manual of the target microcontroller.
Table 1. List of available products
Order code
Board reference
NUCLEO-WBA55CG
•
•
Target STM32
MB1801(1)
STM32WBA55CG
MB1803(2)
1. Mezzanine board
2. MCU RF board
2.1
Codification
The meaning of the codification is explained in Table 2.
Table 2. Codification explanation
NUCLEO-XXXYYZT
Example: NUCLEO-WBA55CG
XXX
MCU series in STM32 32-bit Arm Cortex MCUs
STM32WBA series
YY
MCU product line in the series
STM32WBA54/55 product line
Z
T
UM3301 - Rev 1
Description
STM32 package pin count:
•
C for 48 pins
STM32 flash memory size:
•
G for 1 Mbyte
48 pins
1 Mbyte
page 3/45
UM3301
Development environment
3
Development environment
3.1
System requirements
Note:
•
Multi‑OS support: Windows® 10, Linux® 64-bit, or macOS®
•
USB Type-A or USB Type-C® to USB Type-C® cable
macOS® is a trademark of Apple Inc., registered in the U.S. and other countries and regions.
Linux® is a registered trademark of Linus Torvalds.
Windows is a trademark of the Microsoft group of companies.
3.2
Development toolchains
•
IAR Systems® - IAR Embedded Workbench®(1)
•
•
Keil® - MDK-ARM(1)
STMicroelectronics - STM32CubeIDE
1. On Windows® only.
3.3
Demonstration software
The demonstration software, included in the STM32Cube MCU Package corresponding to the on-board
microcontroller, is preloaded in the STM32 flash memory for easy demonstration of the device peripherals in
standalone mode. The latest versions of the demonstration source code and associated documentation can be
downloaded from www.st.com.
UM3301 - Rev 1
page 4/45
UM3301
Conventions
4
Conventions
Table 3 provides the conventions used for the ON and OFF settings in the present document.
Table 3. ON/OFF convention
UM3301 - Rev 1
Convention
Definition
Jumper JPx ON
Jumper fitted
Jumper JPx OFF
Jumper not fitted
Jumper JPx [1-2]
Jumper fitted between Pin 1 and Pin 2
Solder bridge SBx ON
SBx connections closed by 0 Ω resistor
Solder bridge SBx OFF
SBx connections left open
Resistor Rx ON
Resistor soldered
Resistor Rx OFF
Resistor not soldered
Capacitor Cx ON
Capacitor soldered
Capacitor Cx OFF
Capacitor not soldered
page 5/45
UM3301
Safety recommendations
5
Safety recommendations
5.1
Targeted audience
This product targets users with at least basic electronics or embedded software development knowledge like
engineers, technicians, or students.
This board is not a toy and is not suited for use by children.
5.2
Handling the board
This product contains a bare printed circuit board and as with all products of this type, the user must be careful
about the following points:
•
•
•
•
•
UM3301 - Rev 1
The connection pins on the board might be sharp. Be careful when handling the board to avoid hurting
yourself
This board contains static‑sensitive devices. To avoid damaging it, handle the board in an ESD‑proof
environment.
While powered, do not touch the electric connections on the board with your fingers or anything conductive.
The board operates at voltage levels that are not dangerous, but components could be damaged when
shorted.
Do not put any liquid on the board. Avoid operating the board close to water or at a high humidity level.
Do not operate the board if dirty or dusty.
page 6/45
UM3301
Quick start
6
Quick start
This section describes how to start development quickly using NUCLEO-WBA55CG.
To use the product, you must accept the evaluation product license agreement from the www.st.com/epla
webpage.
Before the first use, make sure that no damage occurred to the board during shipment:
•
•
All socketed components must be firmly secured in their sockets.
Nothing must be loose in the board blister.
The Nucleo board is an easy-to-use development kit to evaluate quickly and start development with an STM32
microcontroller in a UFQFPN48 package.
6.1
Getting started
Follow the sequence below to configure the STM32WBA55CG board and launch the demonstration application
(refer to Figure 3 and Figure 5 for component location):
1. Check jumper positions on board: JP2 ON, JP1 on 5V_STLK [1-2].
2. Check that switch SW1 is on the 3V3 power supply.
3. Install the ST BLE Toolbox mobile application on a Bluetooth® Low Energy compatible mobile device from the
App Store or Google Play.
4. Connect the Nucleo board to a PC with a USB Type-A or USB Type-C® to USB Type-C® cable through the
CN15 USB connector (5V_STLK). Once connected the green LED (LD2) lights up. Refer to the user manual
STLINK-V3MODS and STLINK-V3MINI debugger/programmer tiny probes for STM32 microcontrollers
(UM2502) available at www.st.com.
5. Use the ST BLE Toolbox mobile application to detect the STM32WBA P2P server (P2PSRV) and connect it.
The smartphone application displays the service and characteristics of the device.
6. Pushing the button (B1) on the board toggles the alarm on the smartphone display. On the smartphone, push
the lamp to switch ON/OFF the Nucleo board blue LED (LD1).
UM3301 - Rev 1
page 7/45
UM3301
Hardware layout and configuration
7
Hardware layout and configuration
NUCLEO-WBA55CG is designed around the STM32WBA55CG. The design includes a mezzanine board and an
MCU RF board. The hardware block diagram in Figure 2 illustrates the connection between STM32WBA55CG
and peripherals (ARDUINO® Uno V3 connectors, ST morpho connector, and embedded ST-LINK).
Figure 3 and Figure 5 help users locate these features on the NUCLEO-WBA55CG board. The mechanical
dimensions of the STM32WBA55CG product are shown in Figure 6.
Figure 2. Hardware block diagram
NUCLEO-WBA55CG (MB1801+MB1803)
MB1801
ST morpho
expansion connectors
ARDUINO®
expansion connectors
Three LEDs
Three push-buttons
Level shifter
MB1803
32 MHz
crystal
STM32WBA55
32.768 kHz
crystal
PCB
antenna
Filter
matching
Reset
push-button
VDD and V_TARGET
External components
for SMPS
STM32WBA55 side
Level shifter
Power selector
LDO
5 to 3 V
ST-LINK side
Power selector
LDO
5 to 3 V
STM32WBA55
5V ST-LINK
LDO
12 to 5 V
STLINK-V3EC
Debug
RF path
GPIOs
External
power
supply
(1.8 to 3.3 V
optional)
UM3301 - Rev 1
External
power
supply
(7 to 12 V
optional)
External
power
supply
(5 V
optional)
ST- LINK USB
DT59347V1
Power management
page 8/45
UM3301
Hardware layout and configuration
Figure 3. NUCLEO-WBA55CG PCB top view
PCB antenna
ARDUINO® Digital 8-15 (CN6)
ARDUINO® Power (CN5)
ST morpho (CN4)
ST morpho (CN3)
MIPI10/STDC14
connector footprint
VDD jumper (JP2)
5V source selector (JP1)
ARDUINO® Digital 0-7 (CN8)
User push-buttons (B1, B2, and B3)
DT59348V1
ARDUINO® Analog (CN7)
User LEDs (LD1, LD2, and LD3)
ST-LINK status LED (LD4)
Reset push-button (B4)
Figure 4. NUCLEO-WBA55CG PCB details of the MCU RF board
PCB antenna
C12/L1/C13/L2/C14
Matching network and filter
STM32WBA55CG (U1)
LSE crystal (32.768 kHz)
MIPI10/STDC14
connector footprint
UM3301 - Rev 1
DT59349V1
HSE crystal (32 MHz)
page 9/45
UM3301
Hardware layout and configuration
Figure 5. NUCLEO-WBA55CG PCB bottom view
LDO 5V (U3)
LDO 3V3 (U4)
Level shifters
(U6, U9, and U15)
STM32F723
(core of ST-LINK)
Power switch (U10)
SW1
ST-LINK USB Type-C® connector
DT59350V1
LDO 3V3 (U11)
Figure 6. NUCLEO-WBA55CG (MB1801D) mechanical dimensions (in millimeters)
UM3301 - Rev 1
page 10/45
UM3301
Hardware layout and configuration
Figure 7. NUCLEO-WBA55CG (MB1803B) mechanical dimensions (in millimeters)
UM3301 - Rev 1
page 11/45
UM3301
Hardware layout and configuration
7.1
Power supply
7.1.1
General description
By default, the STM32WBA55CG embedded on this Nucleo board is supplied by 3V3 but the board proposes a lot
of possibilities to supply the module. In fact, at first, the 3V3 can come from ST-LINK USB, ARDUINO®, or ST
morpho connectors. Moreover, STM32WBA55CG can be supplied by an external source (between 1.8 and 3.3 V).
Thanks to level shifters, debugging by embedded ST-LINK is always possible even if the supply voltage of the
target is different than 3V3 (ST-LINK supply). Figure 8 shows the power tree. Moreover, this figure also shows the
default state of the jumpers and the solder bridges.
Note:
In general, the product must be supplied by a voltage source or auxiliary equipment that complies with EN
62368-1:2014+A11:2017 or the standard that replaces it.
Figure 8. STM32WBA55CG power tree
AVDDEXT (CN11-1)
ARDUINO® AVDD (CN6-8)
ST morpho AVDD (CN4-7)
VDDA/VREF+
U3
ARDUINO® VIN (CN5-8)
ST morpho VIN (CN3-24)
LDO 5V
SB1
JP1 [5-6]
OFF
5V
VEXT (CN10-1)
OFF
SB21
ON
JP1 [7-8]
STM32WBA55CG
VDD
3V3
U4
SB20
ST morpho
5V_EXT (CN3-6)
ON
SW1
LDO 3V3
JP2
ON
OFF
SB22
SB33
SB6
OFF
JP1 [3-4]
5V USB MCU (CN9 and CN4-8)
(Not available for WBA55)
VDD
1V8 to 3V3
OFF
ON
VDDRFPA
OFF
SB41
JP1 [9-10]
Level shifter (WBA side)
OFF
ON
VDDANA
VDD11
U10
5V_STLK
USB STLNK
Power switch
7.1.2
5V
only
JP1 [1-2]
ON
LDO 3V3
SMPS
Level shifter (ST-LINK side)
U11
STLINK-V3EC
DT59353V1
VBUS_STLK
3V3_STLK
MB1803
7 to 12 V power supply
A 7 to 12 V DC power source can power NUCLEO-WBA55CG. There are three accesses for this type of level:
•
•
•
Pin VIN of the ARDUINO® connector (CN5-8). It is possible to apply until +12 V on this pin or use an
ARDUINO® shield, which can deliver this type of voltage on the VIN pin
Pin VIN of the ST morpho connector (CN3-24). It is possible to apply until +12 V on this pin like for the
ARDUINO® connection
External input (VEXT, CN10). Be careful, in this case, the states of the jumpers and solder bridge are very
important. Verify these states in Table 4.
These sources are connected to a linear low‑drop voltage regulator (U3). The output of this regulator (5 V) is a
potential source of the 5V signal (refer to details in the next section).
UM3301 - Rev 1
page 12/45
UM3301
Hardware layout and configuration
7.1.3
5 V power supply
A 5 V DC power source can power NUCLEO-WBA55CG. The 5 V can come from several connectors:
•
•
•
•
External input (VEXT, CN10). Be careful, in this case, the states of the jumpers and solder bridge are very
important. Refer to Table 4.
5V_EXT from ST morpho connector (CN3-6 of MB1801)
VIN (7-12 V) input through the voltage regulator (U3). Refer to Section 7.1.2: 7 to 12 V power supply.
USB ST-LINK can supply the board directly (VBUS_STLK) or through the monitoring of STLINK-V3EC.
The jumper (JP1) allows selecting the 5V source. Table 4 shows the configuration to apply the selected source.
Depending on the current needed on the devices connected to the USB port, and the board itself, power
limitations can prevent the system from working as expected. The user must ensure that NUCLEO-WBA55CG is
supplied with the correct power source depending on the current needed.
Table 4. Power supply selector (JP1) description
Jumper/solder bridge
Setting
Configuration
VBUS_STLK
VEXT
5V_VIN
5V_USB
5V_STLK
5V sources
Default setting
NUCLEO-WBA55CG is supplied through the
USB Type-C® receptacle (CN15) (USB_STLNK).
2
10
1
1
ST-LINK controls this source. It enables this 5V
after the startup of STLINK-V3EC if all the
conditions are fulfilled.
JP1
5V supply source
selector
VBUS_STLK
VEXT
5V_VIN
JP1
5V_USB
5V_STLK
5V sources
Not available on variant MB1801-NoUSB.
2
10
1
1
JP1
VBUS_STLK
VEXT
5V_VIN
5V_USB
5V_STLK
5V sources
2
10
1
1
NUCLEO-WBA55CG is supplied through pin 8 of
the ARDUINO® connector (CN5) or pin 24 of the
ST morpho connector (CN3) or CN10 (refer to
the configuration details in the present Power
supply section).
JP1
UM3301 - Rev 1
page 13/45
UM3301
Hardware layout and configuration
Jumper/solder bridge
Setting
Configuration
VBUS_STLK
VEXT
5V_VIN
5V_USB
5V_STLK
5V sources
2
10
1
1
NUCLEO-WBA55CG is supplied through CN10
or through pin 6 of the ST morpho connector
(CN3). Refer to the configuration details in the
present Power supply section.
JP1
JP1
5V supply source
selector
VBUS_STLK
VEXT
5V_VIN
5V_USB
5V_STLK
5V sources
2
10
1
1
NUCLEO-WBA55CG is supplied through the
CN15 USB Type-C® receptacle (USB_STLNK)
without any control from STLINK-V3EC.
JP1
When 5V_STLK is used, JP1 is set to [1-2]. The sequence is specific. In the beginning, only STLINK-V3EC is
supplied. If the USB enumeration succeeds, the 5V_STLK power is enabled by asserting the PWR_EN signal
from STLINK-V3EC. This pin is connected to a power switch (U10), which supplies the rest of the board. This
power switch also features a current limitation to protect the PC in case of currents exceeding 300 mA.
UM3301 - Rev 1
page 14/45
UM3301
Hardware layout and configuration
7.1.4
Current measurement
As the device has low‑power features, it can be interesting to measure the current consumed by NUCLEOWBA55CG. To do this measurement easily, there are two possibilities:
1. Measure the supply current of the SoC using an ammeter in place of the jumper (JP2). In this case, all supply
sources can be used except the AVDD coming from the ARDUINO® connector. AVDD input must not be used
during this measurement and SB1 must be ON. Figure 9 shows the configuration.
Figure 9. Current measurement with an ammeter
AVDDEXT (CN11-1)
ARDUINO® AVDD (CN6-8)
ST morpho AVDD (CN4-7)
VDDA/VREF+
U3
ARDUINO® VIN (CN5-8)
ST morpho VIN (CN3-24)
LDO 5V
SB1
JP1 [5-6]
OFF
5V
VEXT (CN10-1)
OFF
SB21
ON
JP1 [7-8]
SW1
LDO 3V3
+A
OFF
OFF
ON
JP1 [3-4]
5V USB MCU (CN9 and CN4-8)
(Not available for WBA55)
JP2
OFF
SB22
SB33
STM32WBA55CG
VDD
3V3
U4
SB20
ST morpho
5V_EXT (CN3-6)
ON
1V8 to 3V3
VDD
SB6
OFF
VDDRFPA
OFF
SB41
JP1 [9-10]
ON
Level shifter (WBA side)
OFF
VDDANA
VDD11
U10
5V_STLK
USB STLNK
Power switch
UM3301 - Rev 1
5V
only
ON
LDO 3V3
SMPS
Level shifter (ST-LINK side)
U11
STLINK-V3EC
JP1 [1-2]
3V3_STLK
MB1803
DT59360V1
VBUS_STLK
page 15/45
UM3301
Hardware layout and configuration
2. Use an external power supply with current measurement capability. In this case, the jumper (JP2) must be
removed and the supply connected to pin 2 of JP2 (refer to Figure 10). The supply voltage must be between 1V8
and 3V3. AVDD input (CN1-8) must not be used during this measurement.
Figure 10. Current measurement with an external power supply
AVDDEXT (CN11-1)
ARDUINO® AVDD (CN6-8)
ST morpho AVDD (CN4-7)
VDDA/VREF+
U3
ARDUINO® VIN (CN5-8)
ST morpho VIN (CN3-24)
LDO 5V
SB1
JP1 [5-6]
OFF
5V
VEXT (CN10-1)
OFF
SB21
ON
JP1 [7-8]
STM32WBA55CG
VDD
3V3
U4
SB20
ST morpho
5V_EXT (CN3-6)
ON
SW1
LDO 3V3
JP2
OFF
OFF
SB22
SB33
VDD
OFF
ON
JP1 [3-4]
5V USB MCU (CN9 and CN4-8)
(Not available for WBA55)
1V8 to 3V3
External
power supply
1.8 to 3.3 V
SB6
OFF
VDDRFPA
OFF
SB41
JP1 [9-10]
Level shifter (WBA side)
OFF
ON
VDDANA
VDD11
U10
5V_STLK
USB STLNK
Power switch
Caution:
UM3301 - Rev 1
5V
only
ON
LDO 3V3
SMPS
Level shifter (ST-LINK side)
U11
STLINK-V3EC
JP1 [1-2]
DT59361V1
VBUS_STLK
3V3_STLK
MB1803
As explained above, the supply voltage VDD must be between 1.8 and 3.3 V. The limit of 3.3 V is due to level
shifters (when STM32WBA55CG can support 3.6 V).
page 16/45
UM3301
Hardware layout and configuration
3. If it is necessary to do power consumption measurement during debugging, STMicroelectronics has an
interesting solution. It is possible to use STLINK-V3PWR. This product allows two sources of supply: a first for the
current measurement on the STM32WBA55CG, and a second for the rest of the board, such as LEDs. Like in the
previous case, the jumper (JP2) must be removed, and the main supply for the current measurement is
connected to pin 2 of JP2 (refer to Figure 11). For the second source (+5V), remove the jumper on JP1 and
connect this source to the top side (pin 1, 3, 5, 7, or 9 of JP1).
The supply voltage must be between 1.8 and 3.3 V. AVDD input must not be used and SB1 must be ON during
this measurement.
Figure 11. Current measurement with STLINK-V3PWR
AVDDEXT (CN11-1)
ARDUINO® AVDD (CN6-8)
ST morpho AVDD (CN4-7)
VDDA/VREF+
LDO 5V
SB1
JP1 [5-6]
OFF
5V
U4
SB20
OFF
SB21
ON
JP1 [7-8]
STM32WBA55CG
VDD
3V3
VEXT (CN10-1)
ST morpho
5V_EXT (CN3-6)
ON
SW1
LDO 3V3
JP2
OFF
OFF
SB22
SB33
VDD
OFF
ON
SB6
1V8 to 3V3
JP1 [3-4]
5V USB MCU (CN9 and CN4-8)
(Not available for WBA55)
OFF
VDDRFPA
Main supply
OFF
+5Vaux
SB41
JP1 [9-10]
Level shifter (WBA side)
OFF
ON
VDDANA
STLINK-V3PWR
VBUS_STLK
U10
5V_STLK
USB STLNK
Power switch
5V
only
JP1 [1-2]
ON
LDO 3V3
SMPS
Level shifter (ST-LINK side)
U11
STLINK-V3EC
VDD11
3V3_STLK
MB1803
DT59362V1
U3
ARDUINO® VIN (CN5-8)
ST morpho VIN (CN3-24)
The details above concern the supply of the board by STLINK-V3PWR. Now, the debug feature of these tools
also needs some modification.
By default, MB1803 is delivered without the possibility of debugging by an external tool. Nevertheless, as
explained in Section 7.12, it is possible to solder a MIPI10 or STDC14 connector on the CN3 footprint. In our
case, to use STLINK-V3PWR, we solder an STDC14 on the CN3 footprint of the MB1803. Refer to Figure 12. The
reference of the STDC14 connector is FTSH-107-01-L-DV-K (SAMTEC).
Caution:
UM3301 - Rev 1
By default, this connector is not assembled because it prohibits the use of an ARDUINO® shield. The height of
the connector is not compatible with the plug of the ARDUINO® shield. Moreover, it is always possible to plug an
ST morpho shield on the bottom side of MB1801.
page 17/45
UM3301
Hardware layout and configuration
Figure 12. CN3 assembly for STLINK-V3PWR
It is also necessary to add some components on the bottom side of MB1803. Table 5 explains the values of the
components and Figure 13 shows the location of these components.
Table 5. Components to add to support the STLINK-V3PWR configuration
Designator
Value
Package
Part number example
R2, R3, R4, R5, R6, R7, R8, R9
47 Ω 1%
0402
YAGEO: RC0402FR-0747RL
C22
1 µF/16 V
0603
YAGEO: CC0603KRX5R7BB105
Figure 13. Components to add to support the STLINK-V3PWR configuration
UM3301 - Rev 1
page 18/45
UM3301
Hardware layout and configuration
Figure 14. Configuration for current measurement with STLINK-V3PWR
Caution:
With this configuration, the second Virtual COM port (VCP2) is not available from STLINK-V3PWR. Only VCP1
can be used. VCP1 is directly connected by the STDC14 ribbon (pins 13 and 14 on STDC14).
After connection, download STM32CubeMonitor-Power from the www.st.com website and install it. This software
allows doing easily dynamic current measurements. Figure 15 shows an example of a current measurement
(firmware: “Heart Rate” from the STM32CubeWBA firmware package).
Figure 15. Example of current measurement with an external STLINK-V3PWR
For more details on using STLINK-V3PWR, a dedicated page is available on the www.st.com website.
UM3301 - Rev 1
page 19/45
UM3301
Hardware layout and configuration
7.2
Clock sources
7.2.1
HSE clock references
The accuracy of the high‑speed clock (HSE) of the MCU RF board is committed to a 32 MHz crystal oscillator.
The HSE oscillator is trimmed during board manufacturing.
7.2.2
LSE clock references
The accuracy of the low‑speed clock (LSE) of the MCU RF board is committed to a 32.768 kHz crystal oscillator.
7.3
Reset sources
The reset signal of NUCLEO-WBA55CG is active LOW. The internal PU forces the RST signal to a high level.
The sources of reset are:
7.4
•
•
Reset push-button (B4)
Embedded STLINK-V3EC
•
•
ARDUINO® connector (CN5 pin 3), reset from the ARDUINO® board
ST morpho connector (CN3 pin 14)
Embedded STLINK-V3EC
The STLINK-V3EC programming and debugging tool is integrated into NUCLEO-WBA55CG.
The features supported on the STLINK-V3EC are:
•
•
•
•
•
•
•
USB 2.0 high-speed interface
Probe firmware update through USB
JTAG communication support up to 21 MHz
SWD and SWV communication support up to 24 MHz
3.0 to 3.6 V application voltage support and 5 V tolerant inputs
Virtual COM port (VCP) up to 16 Mbps
Optional drag-and-drop flash memory programming binary files
•
Multipath bridge USB to SPI/UART/I2C/CAN/GPIOs
For detailed information about the STLINK-V3EC capabilities such as LED management, drivers, and firmware,
refer to the technical note Overview of ST-LINK derivatives (TN1235) at www.st.com.
For information about the debugging and programming features of STLINK-V3EC, refer to the user manual
STLINK-V3SET debugger/programmer for STM8 and STM32 (UM2448) at www.st.com.
7.4.1
Drivers
STLINK-V3EC requires a dedicated USB driver, which, for Windows 7® and Windows 8® is available from
www.st.com. For Windows 10®, it is not necessary to install the driver. ST-LINK is automatically identified.
In case the NUCLEO-WBA55CG board is connected to the PC before the driver is installed, some board
interfaces might be declared as Unknown in the PC device manager. In this case, the user must install the
dedicated driver files and update the driver of the connected device from the device manager, as shown in
Figure 16. USB composite device.
Note:
UM3301 - Rev 1
It is preferable to use the USB Composite Device to handle a full recovery.
page 20/45
UM3301
Hardware layout and configuration
Figure 16. USB composite device
7.4.2
STLINK-V3EC firmware upgrade
STLINK-V3EC embeds a firmware mechanism for the in‑place upgrade through the USB port. As the firmware
might evolve during the lifetime of the STLINK-V3EC product (for example new functionalities, bug fixes, support
for new microcontroller families), visiting the www.st.com website is recommended before starting to use the
NUCLEO-WBA55CG board, then periodically to stay up-to-date with the latest firmware version.
For detailed information on the ST-LINK USB drivers, refer to the technical note Overview of ST-LINK derivatives
(TN1235) at www.st.com.
7.4.3
STLINK-V3EC USB connector (CN15)
The main function of this connector is the access to STLINK-V3EC embedded on the NUCLEO-WBA55CG for the
debugging as explained above. It allows supplying the board (refer to Section 7.1: Power supply). The connector
is a standard USB Type-C® connector.
Table 6. STLINK-V3EC USB Type-C® connector (CN15)
7.4.4
Pin
Pin name
Signal name
Function
A4, A9, B4, B9
VBUS
VBUS_STLK
VBUS power
A7, B7
DM
STLK_USB_N
DM
A6, B6
DP
STLK_USB_P
DP
A5
CC1
-
Configuration Channel-
B5
CC2
-
Configuration Channel-
A1, A12, B1, B12
GND
GND
GND
Virtual COM port USART1
STLINK-V3EC offers a USB Virtual COM port bridge. This feature allows access to the USART1 of NUCLEOWBA55CG by the USB_STLNK connector. By default, this USART1 interface of NUCLEO-WBA55CG is
connected to the VCP1 of the STLINK-V3EC MCU (STM32F723IE).
Access is possible on the CN3 connector of the mezzanine board (MB1801). Both signals Tx and Rx are
available, and two solder bridges, SB3 and SB5, allow disconnecting the UART coming from the SoC. By default,
VCP1 is connected to the USART1 of NUCLEO-WBA55CG.
Table 7. VCP1 interface pinout description
UM3301 - Rev 1
STM32WBA55CG
CN3
STM32F723
USART1 Rx (PA8/pin 5)
Pin 35 (GPIO23)
STLINK_TX: PG14/pin A7
USART1 Tx (PB12/pin 4)
Pin 37 (GPIO24)
STLINK_RX: PG9/pin C10
page 21/45
UM3301
Hardware layout and configuration
7.4.5
Virtual COM port LPUART1 (VCP2)
It is possible to replace the mass storage interface with a second Virtual COM port. To do so, the two solder
bridges SB7 and SB8 (Tx and Rx on MB1801) must be ON. It is also necessary to do a firmware upgrade through
STM32CubeProgrammer (refer to the technical note Overview of ST-LINK derivatives (TN1235) at www.st.com.
The access is possible on the CN3 and CN4 connectors of the mezzanine board (MB1801). All signals (Tx, Rx,
RTS, and CTS) are available, and solder bridges allow disconnecting the UART coming from the SoC. Depending
on the use case, for RTS and CTS there are several choices of connections. By default, VCP2 is not connected to
the STM32WBA55CG.
Table 8. VCP2 interface pinout description
STM32WBA55CG
CN3 and CN4
STM32F723
LPUART1_RX
CN4 pin 37
STLINK_TX:
On MB1801:
(PA10 pin 46)
(GPIO55)
PC10 pin B14
SB7 ON
LPUART1_TX
CN4 pin 35
STLINK_RX:
On MB1801:
(PB5 pin 21)
(GPIO54)
PB11 pin R13
SB8 ON
LPUART1_CTS
(PA0 pin13)
(PB15 pin33)
Solder bridges
On MB1801:
CN4 pin16
(GPIO 38)
STLINK_RTS:
CN4 pin26
PD12 pin N13
(GPIO 46)
SB25 ON
On MB1803:
SB8 ON and SB9 OFF (PA0) or
SB32 ON and SB31 OFF (PB15)
On MB1801:
LPUART1_RTS
CN3 pin2
STLINK-CTS:
SB23 ON
(PB9 pin14)
(GPIO 2)
PD11 pin N14
On MB1803:
SB25 ON and SB23 OFF
7.4.6
Level shifter
NUCLEO-WBA55CG has a system for supplying STM32WBA55CG with a different voltage than the ST-LINK. The
ST-LINK is always supplied by 3V3 sources. By default, the STM32WBA55CG is supplied by the same voltage
value as ST-LINK, but it is possible to supply the SoC with another value. It accepts voltage between 1.8 and
3.3 V trust to a specific component (level shifter). This level shifter ensures the voltage conversion between STLINK and the SoC. It drives SWD and UART signals connected to the VCP1 or VCP2 on the ST-LINK.
UM3301 - Rev 1
page 22/45
UM3301
Hardware layout and configuration
7.5
LEDs
7.5.1
Description
Four LEDs on the top side of the Nucleo board help the user during the application development.
Figure 17. LEDs location
ST-LINK Power LED (LD5)
User LED (LD3)
User LED (LD2)
User LED (LD1)
ST-LINK Status LED (LD4)
•
•
•
•
•
•
DT59367V1
ST-LINK COM LED (LD6)
LD1: This blue LED is available for user application.
LD2: This green LED is available for user application.
LD3: This red LED is available for user application.
LD4: This LED turns green when a 5V source is available (to select the 5V source, refer to
Section 7.1.3: 5 V power supply).
LD5: This LED gives information about the STLINK-V3EC target power.
LD6: This LED blinks during communication with the PC.
For detailed information about the STLINK-V3EC LEDs, refer to the technical note Overview of ST-LINK
derivatives (TN1235) at www.st.com.
UM3301 - Rev 1
page 23/45
UM3301
Hardware layout and configuration
7.6
Push-buttons
7.6.1
Description
NUCLEO-WBA55CG provides two types of buttons:
•
•
•
•
USER1 push-button (B1)
USER2 push-button (B2)
USER2 push-button (B3)
Reset push-button (B4), used to reset the Nucleo board.
Figure 18. Push-button location
7.6.2
DT59368V1
User push-button (B1)
User push-button (B2)
User push-button (B3)
Reset push-button (B4)
Reset push-button
B4 is dedicated to the hardware reset of the Nucleo board.
7.6.3
User push-buttons
There are three push-buttons available for the user application. They are connected to PB6, PB7, and PC13. It is
possible to use with GPIO reading or to wake up the device (only B1).
Table 9. I/O configuration for the physical user interface
UM3301 - Rev 1
Name
I/O
Wake-Up available
USER1 pushbutton (B1).
PC13/GPIO56
WKUP1
USER2 pushbutton (B2)
PB6/GPIO51
WKUP3
USER3 pushbutton (B3)
PB7/GPIO53
WKUP5
page 24/45
UM3301
Hardware layout and configuration
7.7
RF I/O stage
Due to FCC/ISED constraints, the antenna cannot be removable. So, the board is proposed by default with a PCB
antenna. This antenna is described on the application note Low cost PCB antenna for 2.4GHz radio: meander
design for STM32WB Series (AN5129) available at www.st.com. Between the STM32WBA55CG and the
antenna, there is a passive network. This network has two functions: makes a low pass filter and matches the
impedance of the PCB antenna. Both functions are merged to reduce the number of components.
The output stage of STM32WBA55CG is optimized for this 50‑Ω impedance. This facilitates the design of the
external part.
Therefore, the low-pass filter is designed with a 50‑Ω impedance on the SoC side and the antenna impedance on
the other side. For simplicity, the antenna bandwidth is not considered. Parts of harmonics are filtered internally
but for silicone size and cost, they are not completely suppressed. The low pass filter is to reduce the level of the
harmonic to satisfy the requirements of certification bodies such as FCC, ISED, RED, and MIC.
This network is built with five components C12, L1, C13, L2, and C14. This guarantees a comfortable margin in all
cases. The study considers component drift (accuracy and temperature), PCB drift, and STM32WBA55CG
variation. Of course, depending on the component manufacturer and the specification of the PCB, these
component values can change after mandatory optimization.
Figure 19. RF I/O stage
STM32WBA55CG
L2
1.3 nH
PCB
antenna
37
C12
1.5 pF
C13
3.9 pF
Low pass filter and matching
network of the PCB antenna
UM3301 - Rev 1
C14
2.7 pF
DT59369V1
L1
1.8 nH
page 25/45
UM3301
Hardware layout and configuration
7.8
Connector naming
Figure 20. Connector location and naming
MCU RF board connector
(CN2)
MCU RF board connector
(CN1)
ARDUINO® connector
(CN6)
ARDUINO® connector
(CN5)
ST morpho connector
(CN3)
MB1803
ARDUINO® connector
(CN8)
DT59370V1
ARDUINO® connector
(CN7)
7.9
ST morpho connector
(CN4)
MB1801
ARDUINO® interface and pinout
On the bottom side of the board, there is an ARDUINO® Uno V3 extension socket. It is built around four standard
connectors (CN5, CN6, CN7, and CN8). Most shields designed for ARDUINO® can fit with the Discovery kits to
offer flexibility in small form factor applications.
Figure 21. ARDUINO® Uno connectors and ARDUINO® shield location
NUCLEO-WB55CG
ARDUINO® Power
(CN5)
ARDUINO® Analog 0-5
(CN7)
NC
IOREF
NRST
3V3
5V
GND
GND
VIN
A0
A1
A2
A3
A4
A5
D15
D14
AVDD
GND
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
ARDUINO® Digital 8-15
(CN6)
ARDUINO® Digital 0-7
(CN8)
DT59371V1
ARDUINO® Uno shield
Operating voltage
The ARDUINO® Uno V3 connectors support 5 V, 3.3 V, and VDD for I/O compatibility.
Caution:
UM3301 - Rev 1
Do not supply 3.3 or 5 V from the ARDUINO® shield. Supplying 3.3 or 5 V from the ARDUINO® shield might
damage the Nucleo board.
Furthermore, if it is necessary to supply the Nucleo board by the ARDUINO® connector, a dedicated pin is
available. VIN allows supplying the board directly. To use this feature, refer to Section 7.1.2: 7 to 12 V power
supply.
page 26/45
UM3301
Hardware layout and configuration
Figure 20 shows the position of the ARDUINO® shield when it is plugged into NUCLEO-WBA55CG. The pinout
shown in Figure 22 corresponds to standard ARDUINO® naming. To see the correspondence with the STM32,
refer to Table 10.
Figure 22. ARDUINO® connector pinout
V_TARGET
STM32WBA55CG
GPIO
IOREF
2
NRST
3
3V3
4
5V
5
GND
6
GND
7
VIN
8
GPIO
GPIO28
PB2
9
D14
GPIO29
PB1
8
AVDD
VDDA
7
GND
GND
6
D13
GPIO31
PB4 (LD1)
5
D12
GPIO33
PB3
4
D11
GPIO34
PA15
3
D10
GPIO37
PA12
2
D9
GPIO39
PA9*
1
D8
GPIO41
PB15/PA11*
CN8 ARDUINO® GPIO
D7
GPIO42
8
ARDUINO® CN7
STM32WBA55CG
D15
10
STM32WBA55CG
PB9/PC13*
PA7 GPIO11
A0
1
7
D6
GPIO44
PB0
PA6 GPIO12
A1
2
6
D5
GPIO47
PB14
PA2 GPIO17
A2
3
5
D4
GPIO49
PB13
PA1 GPIO18
A3
4
4
D3
GPIO50
PB6 (B2)
PA5/PA8* GPIO21
A4
5
3
D2
GPIO52
PB7 (B3)
GPIO22
A5
6
2
D1
GPIO54
PB5 (VCP2_TX*)
1
D0
GPIO55
PA10 (VCP2_RX*)
PA0/PA5*
STM32WBA55CG pin name
UM3301 - Rev 1
GPIO number
(*) Optional, need to change
state of solder bridges
ARDUINO® signal name
Power
ARDUINO® pin number
Not connected (nc)
DT59372V1
ARDUINO® CN5
nc
1
CN6 ARDUINO®
ARDUINO®
connector description
page 27/45
UM3301
Hardware layout and configuration
Table 10. Pinout of the ARDUINO® connectors
Connector
CN5
CN7
CN8
CN6
Pin number
Signal name
STM32 port
Comment
1
NC
-
NC (reserved for tests)
2
3V3 (IOREF)
-
IOREF 3V3
3
NRST
NRST
NRST
4
3V3
-
3V3
5
5V
-
5V
6
GND
-
GND
7
GND
-
GND
8
VIN
-
External supply input (+12 V)
1
A0
PA7
ADC1_IN2
2
A1
PA6
ADC1_IN3
3
A2
PA2
ADC1_IN7
4
A3
PA1
ADC1_IN8
5
A4
PA5/PA8(1)
ADC1_IN4/ADC1_IN1(1)
6
A5
PA0/PA5(1)
ADC1_IN9/ADC1_IN4(1)
1
ARD_D0
PA10(1)
LPUART1_RX(1)
2
ARD_D1
PB5(1)
LPUART1_TX(1)
3
ARD_D2
PB7
GPIO/TIM1_CH4N
4
ARD_D3
PB6
GPIO/TIM2_CH1
5
ARD_D4
PA11
GPIO/TIM1_CH1
6
ARD_D5
PB14
GPIO/TIM3_CH3
7
ARD_D6
PB0
GPIO/TIM1_CH3N
8
ARD_D7
PB9/PC13(1)
GPIO/TIM1_CH3N/
TIM1_BKIN2
1
ARD_D8
PB15/PA11(1)
GPIO/TIM1_CH1(1)
2
ARD_D9
PA9(1)
GPIO/TIM3_CH2
3
ARD_D10
PA12
SPI1_NSS
4
ARD_D11
PA15
SPI1_MOSI
5
ARD_D12
PB3
SPI1_MISO
6
ARD_D13
PB4
SPI1_SCK/TIM1_CH3
7
GND
-
GND
8
AVDD
-
VDDA
9
ARD_D14
PB1
I2C1_SDA/I2C3_SDA
10
ARD_D15
PB2
I2C1_SCL/I2C3_SCL
1. Optional, need to change the state of solder bridges.
UM3301 - Rev 1
page 28/45
UM3301
Hardware layout and configuration
7.10
ST morpho interface and pinout
The ST morpho connectors (CN3 and CN4) are male pin headers accessible on both sides of the board. All
signals and power pins of the MCU are available on the ST morpho connectors. An oscilloscope, logical analyzer,
or voltmeter can also probe these connectors.
Figure 23. ST morpho connector pinout
nc
PB9
nc
GPIO1
3
4
GPIO4
nc
VDD
5
6
5V_EXT
GPIO3
7
8
GND
PA13 (JTMS/SWDIO) GPIO5
9
PA14(JTCLK/SWCLK) GPIO6
11
10
12
12
IOREF V_TARGET
PH3 (BOOT0)
GPIO
STM32WBA55CG
nc GPIO26
CN4
STM32WBA55CG
ST morpho GPIO
1
2 GPIO25 nc
PB2 GPIO28
D15
3
4 GPIO27 nc
PB1 GPIO29
D14
5
6 GPIO30
VDDA
7
8
PB4 (LD1)
5V_USB_MCU
GND
9
PB4 (LD1) GPIO31
D13
11
10 GPIO32 PB3 (SWO*)
12
12 GPIO35 nc
nc
nc
GPIO8
13
14 NRST
PB3 GPIO33
D12
13
14 GPIO36 nc
nc
GPIO9
15
16
3V3
PA15 GPIO34
D11
15
16 GPIO38 PA0*/PA15* (JTDI*)
17 18
5V
PA12 GPIO37
D10
17 18 GPIO40 nc
nc GPIO10
20 GND
GND
19
20
GND
PA9* GPIO39
D9
19
nc GPIO13
21
22
GND
PB15/PA11* GPIO41
D8
21
22 GPIO43
PA12*
PA9 (LD2) GPIO14
23
24
VIN
PB9/PC13* GPIO42
D7
23
24 GPIO45
PA11
PB8*/PB15*
PC14 (OSC32_IN) GPIO15
25
26 GPIO7
PC15 (OSC32_OUT) GPIO16
27
28
A0
nc
GPIO11 PA7
PB0 GPIO44
D6
25
26 GPIO46
PB14 GPIO47
D5
27
28 GPIO48 nc
OSC_IN
GPIO19
29
30
A1 GPIO12 PA6
PA11 GPIO49
D4
29
30 GPIO51
OSC_OUT
GPIO20
31
32
A2 GPIO17 PA2
PB6 (B2) GPIO50
D3
31
32 GND
VBAT
33
34
A3 GPIO18 PA1
PA8 (VCP1_RX)
GPIO23
35
36
GPIO24 37
38
38
A4 GPIO21 PA5/PA8*
8*
A5 GPIO22 PA0/PA5*
PB12 (VCP1_TX)
STM32WBA55CG pin name
UM3301 - Rev 1
GPIO number
(*) Optional, need to change
state of solder bridges
ARDUINO® signal name
PB6 (B2)
PB7 (B3) GPIO52
D2
33
34 GPIO53
PB7 (B3)
PB5 (VCP2_TX*) GPIO54
D1
35
36 GPIO56
PC13 (B1)
PA10 (VCP2_RX*) GPIO55
D0
37
38
38 GPIO57
PB8 (LD3)
Power
ST morpho pin number
Not connected (nc)
DT59373V1
ST morpho
connectors description
CN3
ST morpho
GPIO0
1
2 GPIO2
page 29/45
UM3301
Hardware layout and configuration
Table 11. ST morpho connector pinout
CN3
CN4
Pin
number
STM32WBA55CG
pin name
Pin
number
STM32WBA55CG
pin name
Pin
number
STM32WBA55CG
pin name
Pin
number
STM32WBA55CG
pin name
1
NC
2
PB9
1
NC
2
NC
3
NC
4
NC
3
PB2
4
NC
5
VDD
6
5V_EXT
5
PB1
6
NC
7
BOOT0
8
GND
7
VDDA
8
5V_USB_MCU(2)
9
PA13
10
5V_INT
9
GND
10
PB3/SWO(1)
11
PA14
12
IOREF
11
PB4
12
NC
13
NC
14
NRST
13
PB3
14
NC
15
NC
16
3V3
15
PA15
16
PA0(1)/PA15(1)/
JTDI(1)
17
NC
18
5V
17
PA12
18
NC
19
GND
20
GND
19
PA9(1)
20
GND
21
NC
22
GND
21
PB15/PA11(1)
22
PA12(1)
23
PA9
24
VIN
23
PB9/PC13(1)
24
PA11
25
PC14
26
NC
25
PB0
26
PB8(1)/PB15(1)
27
PC15
28
PA7
27
PB14
28
NC
29
OSC_IN
30
PA6
29
PA11
30
PB6
31
OSC_OUT
32
PA2
31
PB6
32
GND
33
VBAT
34
PA1
33
PB7
34
PB7
36
PA5/PA8(1)
35
PB5
36
PC13
38
PA0/PA5(1)
37
PA10
38
PB8
35
37
PA8
PB12
1. Optional, need to change the state of solder bridges.
2. Not available on NUCLEO-WBA55CG (MB1801-NoUSB mezzanine board variant)
UM3301 - Rev 1
page 30/45
UM3301
Hardware layout and configuration
7.11
MCU RF board interface and pinout
The ST-MCU RF board connectors (CN1 and CN2) are accessible on the top side of the board. They are used to
plug the MCU RF board into the mezzanine board.
Figure 24. MCU RF board connector pinout
MCU RF board
connectors description
GND
nc
nc
GND
PH3 (BOOT0) GPIO3
nc
PA13 (JTMS/SWDIO) GPIO5
PA14 (JTCLK/SWCLK) GPIO6
GND
nc
nc
nc
GND
nc
PA9 (LD2) GPIO14
GND
PC14* (OSC32_IN) GPIO15
PC15* (OSC32_OUT) GPIO16
GND
OSC_IN GPIO19
OSC_OUT GPIO20
nc
PA8 (VCP1_RX) GPIO23
PB12 (VCP1_TX) GPIO24
GND
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
41
43
45
47
49
STM32WBA55CG pin name
UM3301 - Rev 1
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
46
48
50
VDD1
nc
GND
GPIO2 PB9*
nc
NRST
GND
nc
VDD3
VDDA
GND
A0 GPIO11 PA7
A1 GPIO12 PA6
GND
VDD4
VDD5
GND
A2 GPIO17 PA2
A3 GPIO18 PA1
GND
A4 GPIO21 PA5/PA8*
A5 GPIO22 PA0/PA5*
GND
nc
nc
GPIO number
GPIO15
(*) Optional, need to change
state of solder bridges
ARDUINO® signal name
CN2
MCU RF board
nc
nc
nc
PB2 GPIO28 D15
PB1 GPIO29 D14
PB4 (LD1) GPIO31 D13
PB3 GPIO33 D12
PA15 GPIO34 D11
nc
nc
PA12 GPIO37 D10
PA9* GPIO39 D9
PB15/PA11* GPIO41 D8
PB9/PC13* GPIO42 D7
GPIO
PB0 GPIO44 D6
5
nc
nc
PB14 GPIO47 D5
PA11 GPIO49 D4
PB6 (B2) GPIO50 D3
PB7 (B3) GPIO52 D2
PB5 (VCP2_TX*) GPIO54 D1
PA10 (VCP2_RX*) GPIO55 D0
nc
VDD14
Power
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
41
43
45
47
49
ST morpho pin number
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
46
48
50
GND
nc
nc
GND
GPIO30
GPIO32
GND
nc
nc
GND
GPIO38
nc
GND
GPIO43
GPIO45
GND
GPIO46
nc
GND
GPIO51
GPIO53
GND
GPIO56
GPIO57
GND
PB4 (LD1)
PB3 (SWO*)
PA0*/PA15* (JTDI*)
PA12*
PA11
PB8*/PB15*
PB6 (B2)
PB7 (B3)
PC13 (B1)
PB8 (LD3)
Not connected (nc)
DT59374V1
CN1
MCU RF board
page 31/45
UM3301
Hardware layout and configuration
Table 12. MCU RF board connector pinout
CN1
CN2
Pin
number
STM32WBA55CG
pin name
Pin
number
STM32WBA55CG
pin name
Pin
number
STM32WBA55CG
pin name
Pin
number
STM32WBA55CG
pin name
1
GND
2
VDD1
1
NC
2
GND
3
NC
4
NC
3
NC
4
NC
5
NC
6
GND
5
NC
6
NC
7
GND
8
PB9(1)
7
PB2
8
GND
9
BOOT0
10
NC
9
PB1
10
PB4
11
NC
12
NRST
11
PB4
12
PB3/SWO(1)
13
PA13
14
GND
13
PB3
14
GND
15
PA14
16
NC
15
PA15
16
NC
17
GND
18
VDD3
17
NC
18
NC
19
NC
20
VDDA
19
NC
20
GND
21
NC
22
GND
21
PA12
22
PA0(1)/PA15(1)/
JTDI(1)
23
NC
24
PA7
23
PA9(1)
24
NC
25
GND
26
PA6
25
PB15/PA11(1)
26
GND
27
NC
28
GND
27
PB9/PC13(1)
28
PA12(1)
29
PA9
30
VDD4
29
PB0
30
PA11
31
GND
32
VDD5
31
NC
32
GND
33
PC14(1)
34
GND
33
NC
34
PB8(1)/PB15(1)
35
PC15(1)
36
PA2
35
PB14
36
NC
37
GND
38
PA1
37
PA11
38
GND
39
OSC_IN(1)
40
GND
39
PB6
40
PB6
41
OSC_OUT(1)
42
PA5/PA8(1)
41
PB7
42
PB7
43
NC
44
PA0/PA5(1)
43
PB5
44
GND
45
PA8
46
GND
45
PA10
46
PC13
47
PB12
48
NC
47
NC
48
PB8
49
GND
50
NC
49
VDD14
50
GND
1. Optional, need to change the state of solder bridges.
7.12
MIPI10/STDC14 connector
On the MCU RF board, there is a footprint for direct debugging. This footprint is compatible with MIPI10 and
STDC14 connectors. STDC14 is an extension of the MIPI10 connector.
By default, on this footprint (CN3), the connector is not assembled. If some features are not available on STLINKV3EC embedded on the MB1801, it is possible to solder a MIPI10 or STDC14 connector. This enables the use of
an external debugger. Nevertheless, it is necessary to disconnect the SWD (SB15 and SB17 OFF on the
MB1801).
Examples of connectors compatible with this footprint:
•
•
UM3301 - Rev 1
MIPI10: FTSH-105-01-L-DV-K (SAMTEC)
STDC14: FTSH-107-01-L-DV-K (SAMTEC)
page 32/45
UM3301
Hardware layout and configuration
This description uses the standard name of the MIPI10 and STDC14 connectors. On the NUCLEO-WBA55CG
T_VCP corresponding to T_VCP1 on STDC14 (T_VCP_TX is T_VCP1_TX and T_VCP_RX is T_VCP1_RX).
Figure 25. Pinout of the MIPI10/STDC14 connector (CN3 of the MCU RF board)
STDC14
2
STDC14
4
T_JTMS
T_SWDIO
Reserved
6
T_JCLK
T_SWCLK
2
MIPI10
T_JTMS
T_SWDIO
8
T_JTDO
T_SWO
4
T_JCLK
T_SWCLK
10
12
T_JTDI
6
T_JTDO
T_SWO
T_NRST
8
T_VCP_TX
10
T_JTDI
T_NRST
1
13
2
1
MIPI10
T_VCC
1
STDC14
3
Reserved
GND
3
5
GND
5
T_VCC
GND
7
T_JCLK
7
GND
MIPI10
10
9
GND Detect
9
T_JCLK
14
14
11
13
GND Detect
T_VCP_RX
1
9
DT59375V1
2
Table 13. Pinout of the MIPI10/STDC14 connector (CN3 of the MCU RF board)
STDC14 pin #
MIPI10 pin #
Pin description
Type
-
Reserved(1)
-
2
-
Reserved(1)
-
3
1
T_VCC(2)
I
4
2
T_JTMS/T_SWDIO
I/O
5
3
GND
S
6
4
T_JCLK/T_SWCLK
O
7
5
GND
S
8
6
T_JTDO/T_SWO(3)
I
9
7
T_JCLK/NC(4)
O
10
8
T_JTDI/NC(4)
O
11
9
GNDDetect
O
12
10
T_NRST
O
13
-
T_VCP_RX
O
14
-
T_VCP_TX
I
1
1. Do not connect to the target.
2. Input for STLINK-V3
3. SWO is optional, required only for Serial Wire Viewer (SWV)
4. NC means it is not required for the SWD connection.
UM3301 - Rev 1
page 33/45
UM3301
NUCLEO-WBA55CG product information
8
NUCLEO-WBA55CG product information
8.1
Product marking
The stickers located on the top or bottom side of all PCBs provide product information:
•
First sticker: product order code and product identification, generally placed on the main board featuring
the target device.
Example:
Product order code
Product identification
•
Second sticker: board reference with revision and serial number, available on each PCB.
Example:
MBxxxx-Variant-yzz
syywwxxxxx
On the first sticker, the first line provides the product order code, and the second line the product identification.
On the second sticker, the first line has the following format: “MBxxxx-Variant-yzz”, where “MBxxxx” is the board
reference, “Variant” (optional) identifies the mounting variant when several exist, “y” is the PCB revision, and “zz”
is the assembly revision, for example B01. The second line shows the board serial number used for traceability.
Parts marked as “ES” or “E” are not yet qualified and therefore not approved for use in production. ST is not
responsible for any consequences resulting from such use. In no event will ST be liable for the customer using
any of these engineering samples in production. ST’s Quality department must be contacted prior to any decision
to use these engineering samples to run a qualification activity.
“ES” or “E” marking examples of location:
•
•
On the targeted STM32 that is soldered on the board (for an illustration of STM32 marking, refer to the
STM32 datasheet Package information paragraph at the www.st.com website).
Next to the evaluation tool ordering part number that is stuck, or silk-screen printed on the board.
Some boards feature a specific STM32 device version, which allows the operation of any bundled commercial
stack/library available. This STM32 device shows a “U” marking option at the end of the standard part number
and is not available for sales.
To use the same commercial stack in their applications, the developers might need to purchase a part number
specific to this stack/library. The price of those part numbers includes the stack/library royalties.
UM3301 - Rev 1
page 34/45
UM3301
NUCLEO-WBA55CG product information
8.2
NUCLEO-WBA55CG product history
Table 14. Product history
Order
code
Product
identification
Product details
Product change description
Product limitations
NUCLEO-WBA55CG
MCU: STM32WBA55CGU6
silicon revision "B"
MCU errata sheet:
STM32WBA5x device errata
(ES0592)
NUWBA55CG$DT1
8.3
Initial revision
Boards:
•
•
No limitation
MB1801-NoUSB-D02
(mezzanine board)
MB1803-WBA55CGAB01
(MCU RF board)
Board revision history
Table 15. Board revision history
Board reference
MB1801
(mezzanine board)
MB1803
(MCU RF board)
UM3301 - Rev 1
Board variant and revision
Board change description
Board limitations
NoUSB-D02
Initial revision
No limitation
WBA55CGA-B01
Initial revision
No limitation
page 35/45
UM3301
Federal Communications Commission (FCC) and ISED Canada Compliance Statements
9
Federal Communications Commission (FCC) and ISED Canada
Compliance Statements
9.1
FCC Compliance Statement
Identification of products: NUCLEO-WBA55CG
Contains FCC ID: YCP-MB180300
Part 15.19
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
interference that may cause undesired operation.
Part 15.21
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.
Part 15.105
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 instruction, 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 interference by one or more of the following measures:
•
•
•
•
Note:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and 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.
Use only shielded cables.
To satisfy FCC RF exposure requirements, a separation distance of 20 cm or more should be maintained between
the antenna of this device and persons during operation. To ensure compliance, operation at a closer distance
than this is not recommended. This transmitter must not be co‑located or operating in conjunction with any other
antenna or transmitter.
Responsible party (in the USA)
Francesco Doddo
STMicroelectronics, Inc.
200 Summit Drive | Suite 405 | Burlington, MA 01803
USA
Telephone: +1 781-472-9634
UM3301 - Rev 1
page 36/45
UM3301
Federal Communications Commission (FCC) and ISED Canada Compliance Statements
9.2
ISED Compliance Statement
Identification of products: NUCLEO-WBA55CG
Contains FCC ID: YCP-MB180300
Identification du produit : NUCLEO-WBA55CG
Contient sous-ensemble certifié IC : 8976A-MB180300
Compliance Statement
Notice: This device complies with ISED 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.
ISED Canada ICES-003 Compliance Label: CAN ICES-3 (B) / NMB-3 (B).
Déclaration de conformité
Avis: Le présent appareil est conforme aux CNR d'ISDE Canada applicables aux appareils radio exempts de
licence. L'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.
Étiquette de conformité à la NMB-003 d'ISDE Canada : CAN ICES-3 (B) / NMB-3 (B).
RF exposure statement
This device complies with ISED radiation exposure limits set forth for general population. This device must be
installed to provide a separation distance of at least 20 cm from all persons and must not be co-located or
operating in conjunction with any other antenna or transmitter.
Le présent appareil est conforme aux niveaux limites d’exigences d’exposition RF aux personnes définies par
ISDE. L’appareil doit être installé afin d’offrir une distance de séparation d’au moins 20 cm avec les personnes et
ne doit pas être installé à proximité ou être utilisé en conjonction avec une autre antenne ou un autre émetteur.
UM3301 - Rev 1
page 37/45
UM3301
RED Compliance Statement
10
RED Compliance Statement
Simplified EU declaration of conformity
Hereby, STMicroelectronics declares that the radio equipment type "NUCLEO-WBA55CG" is in compliance with
Directive 2014/53/EU.
The full text of the EU declaration of conformity is available at the following internet address: www.st.com.
Déclaration de conformité UE simplifiée
STMicroelectronics déclare que l'équipement radioélectrique du type "NUCLEO-WBA55CG" est conforme à la
directive 2014/53/UE.
Le texte complet de la déclaration de conformité UE est disponible à l'adresse internet suivante: www.st.com.
UM3301 - Rev 1
page 38/45
UM3301
UKCA Compliance Statement
11
UKCA Compliance Statement
SIMPLIFIED UK DECLARATION OF CONFORMITY
Hereby, the manufacturer STMicroelectronics, declares that the radio equipment type “NUCLEO-WBA55CG” is in
compliance with the UK Radio Equipment Regulations 2017 (UK S.I. 2017 No. 1206). The full text of the UK
Declaration of Conformity is available at the following internet address: www.st.com.
UM3301 - Rev 1
page 39/45
UM3301
Revision history
Table 16. Document revision history
UM3301 - Rev 1
Date
Revision
02-Apr-2024
1
Changes
Initial release.
page 40/45
UM3301
Contents
Contents
1
Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
2
Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.1
3
Codification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Development environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3.1
System requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3.2
Development toolchains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3.3
Demonstration software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
4
Conventions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
5
Safety recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
6
5.1
Targeted audience. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
5.2
Handling the board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Quick start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
6.1
7
Getting started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Hardware layout and configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
7.1
7.2
Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
7.1.1
General description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
7.1.2
7 to 12 V power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
7.1.3
5 V power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
7.1.4
Current measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Clock sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
7.2.1
HSE clock references . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
7.2.2
LSE clock references . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
7.3
Reset sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
7.4
Embedded STLINK-V3EC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
7.5
7.4.1
Drivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
7.4.2
STLINK-V3EC firmware upgrade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
7.4.3
STLINK-V3EC USB connector (CN15) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
7.4.4
Virtual COM port USART1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
7.4.5
Virtual COM port LPUART1 (VCP2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
7.4.6
Level shifter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
7.5.1
7.6
UM3301 - Rev 1
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Push-buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
7.6.1
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
7.6.2
Reset push-button. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
page 41/45
UM3301
Contents
7.6.3
8
9
User push-buttons. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
7.7
RF I/O stage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
7.8
Connector naming. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
7.9
ARDUINO® interface and pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
7.10
ST morpho interface and pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
7.11
MCU RF board interface and pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
7.12
MIPI10/STDC14 connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
NUCLEO-WBA55CG product information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
8.1
Product marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
8.2
NUCLEO-WBA55CG product history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
8.3
Board revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Federal Communications Commission (FCC) and ISED Canada Compliance
Statements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
9.1
FCC Compliance Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
9.2
ISED Compliance Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
10
RED Compliance Statement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
11
UKCA Compliance Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
List of tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
List of figures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
UM3301 - Rev 1
page 42/45
UM3301
List of tables
List of tables
Table 1.
Table 2.
Table 3.
Table 4.
Table 5.
List of available products. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Codification explanation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
ON/OFF convention . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Power supply selector (JP1) description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Components to add to support the STLINK-V3PWR configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Table 6.
Table 7.
Table 8.
Table 9.
STLINK-V3EC USB Type-C® connector (CN15). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
VCP1 interface pinout description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
VCP2 interface pinout description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
I/O configuration for the physical user interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Table 10.
Table 11.
Table 12.
Table 13.
Table 14.
Table 15.
Table 16.
Pinout of the ARDUINO® connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
ST morpho connector pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
MCU RF board connector pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Pinout of the MIPI10/STDC14 connector (CN3 of the MCU RF board) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Product history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Board revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
UM3301 - Rev 1
page 43/45
UM3301
List of figures
List of figures
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Figure 7.
Figure 8.
Figure 9.
Figure 10.
Figure 11.
Figure 12.
Figure 13.
Figure 14.
Figure 15.
Figure 16.
Figure 17.
Figure 18.
Figure 19.
Figure 20.
NUCLEO-WBA55CG global view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Hardware block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
NUCLEO-WBA55CG PCB top view. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
NUCLEO-WBA55CG PCB details of the MCU RF board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
NUCLEO-WBA55CG PCB bottom view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
NUCLEO-WBA55CG (MB1801D) mechanical dimensions (in millimeters) . . . . . . . . . . . . . . . . . . . . . . . . . . 10
NUCLEO-WBA55CG (MB1803B) mechanical dimensions (in millimeters) . . . . . . . . . . . . . . . . . . . . . . . . . . 11
STM32WBA55CG power tree . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Current measurement with an ammeter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Current measurement with an external power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Current measurement with STLINK-V3PWR. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
CN3 assembly for STLINK-V3PWR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Components to add to support the STLINK-V3PWR configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Configuration for current measurement with STLINK-V3PWR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Example of current measurement with an external STLINK-V3PWR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
USB composite device. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
LEDs location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Push-button location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
RF I/O stage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Connector location and naming. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Figure 21.
ARDUINO® Uno connectors and ARDUINO® shield location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Figure 22.
Figure 23.
Figure 24.
Figure 25.
ARDUINO® connector pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
ST morpho connector pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
MCU RF board connector pinout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Pinout of the MIPI10/STDC14 connector (CN3 of the MCU RF board) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
UM3301 - Rev 1
page 44/45
UM3301
IMPORTANT NOTICE – 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 acknowledgment.
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, 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.
© 2024 STMicroelectronics – All rights reserved
UM3301 - Rev 1
page 45/45
">