UM2819 User manual STM32WB Nucleo-64 board (MB1355) Introduction The NUCLEO-WB55RG STM32WB Nucleo-64 board based on the MB1355 board is a Bluetooth® Low Energy wireless and ultra-low-power device embedding a powerful and ultra-low-power radio compliant with the Bluetooth® Low Energy SIG specification v5.2 and IEEE802.15.4-2011 PHY and MAC is supported.
UM2819 Features 1 Features • STM32WB55RG (1-Mbytes Flash memory, 256-Kbyte SRAM, in VFQFPN68 package) ultra‑low‑power wireless microcontroller featuring: – • • • – 2.4 GHz RF transceiver supporting Bluetooth® specification v5.
UM2819 Ordering information 2 Ordering information To order the NUCLEO-WB55RG Nucleo-64 board, refer to Table 1. Additional information is available from the datasheet and reference manual of the target STM32. Table 1. Ordering information 2.1 Order code Board reference Target STM32 NUCLEO-WB55RG MB1355 STM32WB55RG Codification The meaning of the codification is explained in Table 2. Table 2.
UM2819 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 Micro-B cable macOS® is a trademark of Apple Inc. registered in the U.S. and other countries. Linux® is a registered trademark of Linus Torvalds. All other trademarks are the property of their respective owners. 3.
UM2819 Conventions 4 Conventions Table 3 provides the conventions used for the ON and OFF settings in the present document. Table 3.
UM2819 Safety recommendations 5 Safety recommendations 5.1 Targeted audience This product targets users with at least basic electronics or embedded software development knowledge such as engineers, technicians, or students. This board is not a toy and is not suited for use by children. 5.
UM2819 Quick start 6 Quick start This section describes how to quickly start development using NUCLEO-WB55RG. To use the product, the user must accept the Evaluation Product License Agreement from the www.st.com/ epla webpage. For more information on the STM32WB Nucleo-64 board and demonstration software, visit the www.st.com/stm32nucleo webpage. Before the first use, make sure that no damage has occurred to the board during shipment: • • All socketed components must be firmly secured in their sockets.
UM2819 Hardware layout and configuration 7 Hardware layout and configuration The NUCLEO-WB55RG Nucleo-64 board is designed around the STM32WB55RG microcontroller. The hardware block diagram in Figure 2 illustrates the connection between NUCLEO-WB55RG and its peripherals (ARDUINO® Uno V3 connector, ST morpho connector, and embedded ST-LINK). Figure 3 to Figure 5 help the user to locate these features on the NUCLEO-WB55RG board. The mechanical dimensions of the NUCLEO-WB55RG product are shown in Figure 6.
UM2819 Hardware layout and configuration Figure 3.
UM2819 Hardware layout and configuration Figure 5.
UM2819 Hardware layout and configuration Figure 6.
UM2819 Power supply 7.1 Power supply 7.1.1 General description By default, the STM32WB55RG microcontroller embedded on this Nucleo board is supplied by 3V3 but the board proposes a lot of possibilities to supply the device. The 3.3 V can first come from the ST-LINK USB, ARDUINO®, or ST morpho connectors. Moreover, the STM32WB55RG can be supplied by an external source, between 1.8 and 3.3 V.
UM2819 Power supply 7.1.3 5 V power supply NUCLEO-WB55RG can be powered with a 5 V DC power source. The 5 V can come from several connectors: 1. 5V_USB_STLK connected to CN11 (default configuration for the supply of the board). This connector is dedicated to the access of ST-LINK/V2 and Virtual COM port and therefore can get supply from the host computer. It is also possible to connect a USB charger to this connector. In this case, the ST-LINK and the VCP cannot be accessible. 2. 3. 4.
UM2819 Power supply 7.1.4 Current measurement As the device has low power features, it can be interesting to measure the current consumed by NUCLEOWB55RG. To easily do this measurement, there are two possibilities: 1. Measure the supply current of the SoC using an ammeter in place of the JP1 jumper. In this case, all supply sources can be used except the AVDD coming from the ARDUINO® connector. Figure 8 shows the configuration. Figure 8.
UM2819 Clock sources 2. Use an external power supply with current measurement capabilities. In this case, the JP2 jumper must be removed, and the supply connected to JP2 pin 2, as shown in Figure 9. The supply voltage must be between 1.8 and 3.3 V. AVDD input (CN1 pin 8) must not be used during this measurement. Figure 9.
UM2819 Embedded ST-LINK/V2-1 7.4 Embedded ST-LINK/V2-1 The ST-LINK/V2-1 programming and debugging tool is integrated into the NUCLEO-WB55RG Nucleo-64 board. For information about debugging and programming features, refer to the user manual ST-LINK/V2 in-circuit debugger/programmer for STM8 and STM32 (UM1075), which describes in detail all the ST-LINK/V2 features.
UM2819 Embedded ST-LINK/V2-1 The connector is a standard USB Micro-B connector. Table 5. USB Micro-B connector CN15 (front view) 7.4.4 Pin number Pin name Signal name Functions 1 VBUS 5V_USB_ST_LINK VBUS Power 2 DM USB_STLK_N DM 3 DP USB_STLK_P DP 4 ID - - 5 GND GND GND Virtual COM port: USART1 The STM32WB55RG handles a USB Full Speed peripheral, available on the CN1 USB Micro-B connector. It can communicate with a USB host as a USB device and can supply the board.
UM2819 Embedded ST-LINK/V2-1 7.4.7 JP5 multi‑function jumper The JP5 multi‑function jumper can connect ST-LINK/V2-1 to STM32WB55RG. It is located between the level shifter and the SoC. It is referenced to the VDD domain (STM32WB55RG supply voltage domain). Figure 11. Interconnection bloc diagram between STM32WB55RG and ST-LINK/V2-1 JP5 U7 STM32WB55RG SWD/NRST/UART (VDD domain) SWD/NRST/UART (VDD domain) 3V3_STLINK Level Shifter VDD SWD/NRST/UART (3V3_STLINK domain) STLINK V2.
UM2819 LEDs 7.5 LEDs Six LEDs on the top side of the Nucleo board help the user during the application development. Figure 12. LEDs location LD1, user LED LD2, user LED LD3, user LED 1. 2. 3. 4. 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 red to indicate that the current distribution cannot be performed as expected when the board is supplied by USB_STLINK. 5.
UM2819 Push-buttons 7.6 Push-buttons 7.6.1 Description NUCLEO-WB55RG provides two types of buttons: • B1 USER1 pushbutton • • • B2 USER2 pushbutton B3 USER3 pushbutton B4 reset pushbutton to reset the NUCLEO-WB55RG board. Figure 13. Push-buttons location B1, user Pushbutton B2, user Pushbutton B3, user Pushbutton B4, reset Pushbutton 7.6.2 Reset push-button B4 is dedicated to the hardware reset of the NUCLEO-WB55RG board. 7.6.
UM2819 RF I/O stage Note that PA0 is also connected to ARDUINO® and ST morpho connectors as GPIO, depending on the use case that can generate conflict with B1. In this case, it possible to remove the connection of B1 (SB11 OFF). Table 8. I/O configuration for the physical user interface 7.7 Name I/O Wake-up available B1 USER1 push-button PC4 WKUP1 B2 USER2 push-button PD0 - B3 USER3 push-button PD1 - RF I/O stage The RF output stage is configured by default to use a PCB antenna.
UM2819 Embedded SMPS 7.8 Embedded SMPS NUCLEO-WB55RG embeds an SMPS to optimize the power consumption. All the details of this part are explained in the datasheet and the reference manual of the NUCLEO-WB55RG. NUCLEO-WB55RG allows the evaluation of the SoC with this SMPS active. All the components necessary for the operation are present. Moreover, it is possible to bypass the SMPS. For that, it is first necessary to stop the SMPS by firmware (Refer to the SMPS section in the datasheet and user manual).
UM2819 ARDUINO® and MORPHO connectors 7.9 ARDUINO® connector 7.9.1 Description On the bottom side of the board, there is an ARDUINO ® Uno V3 extension socket. It is built around four standard CN5, CN6, CN8, and CN9 connectors. Most shields designed for ARDUINO ® can fit with the development boards to offer flexibility in small form factor applications. Figure 16.
UM2819 ARDUINO® and MORPHO connectors ARDUINO® interface and pinout 7.9.3 Figure 17 shows the position and pinout of the ARDUINO® shield when it is plugged on NUCLEO-WB55RG. The pinout showed on this figure corresponds to the standard ARDUINO® naming. To see the correspondence with the STM32, refer to Table 9. Figure 17.
UM2819 ARDUINO® and MORPHO connectors Table 9. ARDUINO® connector pinout Connector Pin number Signal name STM32 pin Comment 1 - - Not connected (Reserved for the test) 2 3V3 (IOREF) - IOREF 3.3 V 3 NRST NRST NRST 4 3V3 - 3.
UM2819 ARDUINO® and MORPHO connectors 7.9.4 NUCLEO-WB55RG I/O assignment The CN7 and CN10 ST morpho connectors are male pin headers accessible on both sides of the board. All signals and power pins of the MCU are available on these ST morpho connectors. These connectors can also be probed by an oscilloscope, logical analyzer, or voltmeter. Figure 18.
UM2819 ARDUINO® and MORPHO connectors Table 10.
UM2819 NUCLEO-WB55RG board information 8 NUCLEO-WB55RG board information 8.1 Product marking The stickers located on the top or bottom side of the PCB provide product information: • Product order code and product identification for the first sticker • Board reference with revision, and serial number for the second sticker On the first sticker, the first line provides the product order code, and the second line the product identification.
UM2819 Federal Communication Commission (FCC) 9 Federal Communication Commission (FCC) Identification of products: NUCLEO-WB55RG. FCC ID: YCP-MB1355002 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.
UM2819 Innovation, Science and Economic Development Canada (ISED) Compliance Statements 10 Innovation, Science and Economic Development Canada (ISED) Compliance Statements This radio transmitter (8976A-MB1355002) has been approved by Industry Canada to operate with the antenna types listed below with the maximum permissible gain and required antenna impedance for each antenna type indicated.
UM2819 RED compliance statement 11 RED compliance statement Déclaration de conformité CE simplifiée : STMicroelectronics déclare que l'équipement radioélectrique du type " NUCLEO-WB55RG " est conforme à la directive 2014/53/UE. Bande de fréquence utilisée en transmission et puissance maximale rayonnée dans cette bande : • • Bande de fréquence : 2400-2483.5 MHz (Bluetooth®) Puissance maximale : 4 mW p.i.r.
UM2819 Revision history Table 11. Document revision history UM2819 - Rev 1 Date Version 04-Mar-22 1 Changes Initial release.
UM2819 Contents Contents 1 Features .............................................................................................................................................2 2 Ordering information ......................................................................................................................3 2.1 3 Codification ...........................................................................................................................................
UM2819 Contents 8 7.7 RF I/O stage ...................................................................................................................................... 21 7.8 Embedded SMPS ............................................................................................................................. 22 7.9 ARDUINO® connector ..................................................................................................................... 23 7.9.1 Description ......................
UM2819 List of tables List of tables Table 1. Table 2. Table 3. Table 4. Table 5. Table 6. Table 7. Table 8. Ordering information .................................................................................................................................................................... 3 Codification explanation .............................................................................................................................................................. 3 ON/OFF convention .........
UM2819 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. NUCLEO-WB55RG top view .................................................................................................................................................. 1 Hardware block diagram ........................................................................................................................
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