ST STM32U5 Manuale utente

Introduction

The STM32U5 Nucleo-144 board based on the MB1549 reference board (NUCLEO-U575ZI-Q) provides an affordable and

flexible way for users to try out new concepts and build prototypes by choosing from the various combinations of performance

and power consumption features, provided by the STM32U5 microcontroller.

The ST Zio connector, which extends the ARDUINO® Uno V3 connectivity, and the ST morpho headers provide easy expansion

of the functionality of the STM32 Nucleo open development platform with a wide choice of specialized shields.

The STM32U5 Nucleo-144 board does not require any separate probe as it integrates the STLINK-V3E debugger/programmer.

The STM32U5 Nucleo-144 board comes with the STM32 comprehensive free software libraries and examples available with the

STM32CubeU5 MCU Package.

Figure 1. STM32U5 Nucleo-144 board

Picture is not contractual.

STM32U5 Nucleo-144 board (MB1549)

UM2861

User manual

UM2861 - Rev 2 - September 2021

For further information contact your local STMicroelectronics sales office. www.st.com

1Features

•STM32U5 Series microcontroller (Arm® Cortex®-M33 at 160 MHz) in LQFP144 package

• Internal SMPS to generate Vcore logic supply, identified by '-Q' suffixed boards(1)

• USB Type-C® sink device FS

• 3 user LEDs

• RESET and USER push-buttons

• 32.768 kHz crystal oscillator

• Board connectors:

–USB Type-C® connector

–ST Zio connector including ARDUINO® Uno V3

– ST morpho extension pin headers for full access to all STM32 I/Os

• Flexible power-supply options: ST-LINK, USB VBUS, or external sources

• On-board STLINK-V3E debugger/programmer with USB re-enumeration capability: mass storage, Virtual

COM port, and debug port

• Comprehensive free software libraries and examples available with the STM32CubeU5 MCU Package

• Support of a wide choice of Integrated Development Environments (IDEs) including IAR Embedded

Workbench®, MDK-ARM, and STM32CubeIDE

1. SMPS significantly reduces power consumption in Run mode, by generating Vcore logic supply from an internal DC/DC

converter.

Note: Arm is a registered trademark of Arm Limited (or its subsidiaries) in the US and/or elsewhere.

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Features

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2Ordering information

To order the NUCLEO-U575ZI-Q Nucleo-144 board, refer to Table 1. Additional information is available from the

datasheet and reference manual of the target STM32.

Table 1. Ordering information

Order code Board reference Target STM32

NUCLEO-U575ZI-Q MB1549 STM32U575ZIT6Q

2.1 Products and codification

The meaning of the codification is explained in Table 1.

Table 2. Codification explanation

NUCLEO-XXYYZE-Q Description Example: NUCLEO-U575ZI-Q

XX MCU series in STM32 Arm Cortex MCUs STM32U5 Series

YY MCU product line in the series STM32U575/585

Z STM32 package pin count 144 pins

STM32 Flash memory size:

• I for 2 Mbytes

• J for 4 Mbytes

2 Mbytes

-Q STM32 has an internal SMPS function SMPS

The order code is mentioned on a sticker placed on the top or bottom side of the board.

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Ordering information

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3Development environment

3.1 System requirements

• Multi‑OS support: Windows® 10, Linux® 64-bit, or macOS®

• USB Type-A or USB Type-C® to Micro-B cable

Note: 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.

3.2 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.

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Development environment

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4Conventions

Table 3 provides the conventions used for the ON and OFF settings in the present document.

Table 3. ON/OFF convention

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

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Conventions

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5Quick start

The STM32U5 Nucleo-144 board is a low-cost and easy-to-use development kit, to quickly evaluate and start

development with an STM32U5 Series microcontroller in an LFQFP144-pin package. Before installing and using

the product, accept the Evaluation Product License Agreement from the www.st.com/epla webpage. For more

information on the STM32U5 Nucleo-144 board and demonstration software, visit the www.st.com/stm32nucleo

webpage.

5.1 Getting started

Follow the sequence below to configure the STM32U5 Nucleo-144 board and launch the demonstration

application (refer to Figure 4 for component location):

1. Check the jumper position on the board (refer to Default board configuration).

2. For the correct identification of the device interfaces from the host PC and before connecting the board,

install the STLINK-V3E USB driver available on the www.st.com website.

3. Connect the STM32U5 Nucleo-144 board to a PC with a USB cable (USB Type-A or USB Type-C® to

Micro-B) through the USB connector CN1 to power the board.

4. The LD5 5V_PWR green LED and LD4 COM LED light up, and the green LD1 blinks.

5. Press the B1 blue user button.

6. Observe how the blinking of the LEDs LD1, LD2, and LD3 changes, according to clicks on button B1.

7. Download the demonstration software and several software examples that help to use the STM32 Nucleo

features. These are available on the www.st.com website.

8. Develop your application using the available examples.

5.2 Default board configuration

By default, the STM32U5 Nucleo-144 board is configured with VDD_MCU@3V3. It is possible to set the board for

VDD_MCU@1V8. Before switching to 1V8, check that the extension module and external shield connected to the

NUCLEO board are 1.8 V compatible.

The default jumper configuration and voltage setting are shown in Table 4.

Table 4. Default jumper configuration

Jumper Definition Default position Comment

JP1 STLK_NRST OFF STLINK-V3E MCU not under reset mode

JP2 T_NRST ON RST connected between MCU target

and debugger

JP4 VDD [1-2] VDD MCU voltage selection 3V3

JP5 IDD measurement ON MCU VDD current measurement

JP6 5V power selection [1-2] 5V from STLINK-V3E

JP7 UCPD_DBCC1 OFF Refer to Section 6.11.2 UCPD.

JP8 UCPD_DBCC2 OFF Refer to section Section 6.11.2 UCPD.

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Quick start

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Figure 2. Default board configuration

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Default board configuration

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Table 5 explains the other jumper settings and configurations.

Table 5. Jumper configuration

Jumper Definition Setting(1) Comment

JP1 STLK_RST

ON Use to reset the STLINK-V3E MCU

when an external debug probe is used.

OFF Normal mode: use the STLINK-V3E

debug probe

JP2 T_NRST

ON STLINK-V3E able to reset target MCU

OFF

STLINK-V3E not able to reset Target

MCU configuration to use when an

external debug probe is used.

JP4 VDD voltage selection

[1-2] VDD voltage selection is 3V3

[2-3] VDD voltage selection is 1V8

OFF No internal VDD power supply

(External 3V3 or 1V8 needed)

JP5 IDD measurement

ON MCU is powered by the on‑board

power supplies.

OFF

Use an ammeter to measure the MCU

power consumption, or connect an

external source 3V3 or 1V8 on pin

2 to supply the MCU (STLINK-PWR

tools with STM32CubeMonitor-Power or

ULPBench probe as exemple)

JP6 5V Power selection

[1-2] 5V source from STLINK-V3E

[3-4] 5V source from ARDUINO® VIN 7-12V

[5-6] 5V source from 5V_EXT

[7-8] 5V source from USB Type-C®

[9-10]

5V source from USB_CHGR

(from CN1 STLINK-V3E USB connector

without overcurrent protection)

OFF NO 5V power source, configuration

when external 3V3 is used.

JP7 UCPD_DBCC1

OFF UCPD_DBCC1 NOT connected to

GND

ON UCPD_DBCC1 connected to GND (For

debug purpose)

JP8 UCPD_DBCC2

OFF UCPD_DBCC2 NOT connected to

GND

ON UCPD_DBCC2 connected to GND (For

debug purpose)

1. The default configuration is in bold.

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Default board configuration

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6Hardware layout and configuration

The STM32U5 Nucleo-144 board is designed around an STM32U5 microcontroller in an LFQFP 144-pin package.

Figure 3 shows the connections between the STM32 and its peripherals (STLINK-V3E, push‑buttons, LEDs, USB

ST Zio connectors, and ST morpho headers). Figure 4 and Figure 5 show the location of these features on the

STM32U5 Nucleo-144 board.

The mechanical dimensions of the board are shown in Figure 6.

Figure 3. Hardware block diagram

STM32U575ZI-Q

OSC_32

SWD

32KHz

Crystal

VCP

UART

GPIOs

GPIO

LED

GPIO

Embedded

STLINK-V3E

STDC14/MIPI10

SWD VCP

UART

USB MicroB

connector

User

RST

ARDUINO

MORPHO

GPIO

ARDUINO

MORPHO

PWR SEL

LED

RES COM

T_NRST

STLK

NRST

LEDLED

IDD1V8 / 3V3

USB Type C

connector

GND

GNDGND

SWDUART

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Hardware layout and configuration

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6.1 STM32U5 Nucleo-144 board layout

Figure 4. STM32U5 Nucleo-144 board top layout

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STM32U5 Nucleo-144 board layout

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