ST STM32G4 Nucleo-64 Bedienungsanleitung

Introduction

The STM32G4 Nucleo-64 boards based on the MB1367 reference board (NUCLEO-G431RB, NUCLEO-G474RE) provide an

affordable and flexible way for users to try out new concepts and build prototypes with the STM32G4 Series microcontrollers,

choosing from the various combinations of performance, power consumption and features. The Arduino™ Uno V3 connectivity

and the ST morpho headers provide an easy means of expanding the functionality of the Nucleo open development platform

with a wide choice of specialized shields. The STM32G4 Nucleo-64 boards do not require any separate probe as they integrate

the STLINK-V3E debugger/programmer. The STM32G4 Nucleo-64 boards come with the comprehensive free software libraries

and examples available with the STM32CubeG4 MCU Package.

Figure 1. NUCLEO-G474RE top view Figure 2. NUCLEO-G474RE bottom view

Pictures are not contractual.

STM32G4 Nucleo-64 boards (MB1367)

UM2505

User manual

UM2505 - Rev 2 - April 2019

For further information contact your local STMicroelectronics sales office.

www.st.com

1Features

• STM32G4 microcontroller (Arm® Cortex®-M4 at 170 MHz) in LQFP64 package featuring:

– 128 KBytes of Flash memory and 32 Kbytes of SRAM for STM32G431RBT6

– 512 KBytes of Flash memory and 128 Kbytes of SRAM for STM32G474RET6

• Fully compatible with STM32G473RET6 (512 Kbytes of Flash memory and 128 Kbytes of SRAM)

• 1 user LED

• 1 user and 1 reset push-buttons

• 32.768 kHz LSE crystal oscillator

• 24 MHz HSE on-board oscillator

• Board connectors:

– USB with Micro-AB

–MIPI® debug connector

–Arduino™ Uno V3 expansion connector

– ST morpho extension pin headers for full access to all STM32G4 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 STM32CubeG4 MCU Package

• Support of a wide choice of Integrated Development Environments (IDEs) including IAR™, Keil®, GCC-

based IDEs

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

UM2505

Features

UM2505 - Rev 2 page 2/43

2Ordering information

To order an STM32G4 Nucleo-64 board, refer to Table 1. Additional information is available from the datasheet

and reference manual of the target STM32.

Table 1. List of available products

Order code Board reference Target STM32

NUCLEO-G431RB

MB1367

STM32G431RBT6U

NUCLEO-G474RE STM32G474RET6U

2.1 Product marking

Evaluation tools marked as “ES” or “E” are not yet qualified and therefore not ready to be used as reference

design or in production. Any consequences deriving from such usage will not be at ST charge. In no event, ST will

be liable for any customer usage of these engineering sample tools as reference design or in production.

“E” or “ES” marking examples of location:

• On the targeted STM32 that is soldered on the board (for 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.

In order to use the same commercial stack in his application, a developer may need to purchase a part number

specific to this stack/library. The price of those part numbers includes the stack/library royalties.

2.2 Codification

The meaning of the codification is explained in Table 2.

Table 2. Codification explanation

NUCLEO-G4XXRY Description Example: NUCLEO-G474RE

G4 MCU series in STM32 Arm Cortex MCUs STM32G4 Series

XX MCU line in the series STM32G474 line

R STM32 package pin count 64 pins

STM32 Flash memory size:

• B for 128 Kbytes

• E for 512 Kbytes

512 Kbytes

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

UM2505

Ordering information

UM2505 - Rev 2 page 3/43

3Development environment

3.1 System requirements

• Windows® OS (7, 8 and 10), Linux® 64-bit, or macOS®

• USB Type-A to Micro-B cable

Note: macOS® is a trademark of Apple Inc. registered in the U.S. and other countries.

3.2 Development toolchains

• Keil® MDK-ARM (see note)

• IAR™ EWARM (see note)

• GCC-based IDEs

Note: 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

UM2505 - Rev 2 page 4/43

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 should be 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

UM2505 - Rev 2 page 5/43

5Quick start

The STM32G4 Nucleo-64 board is a low-cost and easy-to-use development kit, used to evaluate and start a

development quickly with an STM32G4 Series microcontroller in LQFP64 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 STM32G4 Nucleo-64 and for demonstration software, visit the www.st.com/stm32nucleo

webpage.

5.1 Getting started

Follow the sequence below to configure the STM32G4 Nucleo-64 board and launch the demonstration application

(refer to Figure 4 for component location):

1. Check the jumper position on the board (refer to Table 4)

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

install the Nucleo USB driver available on the www.st.com/stm32nucleo website

3. To power the board, connect the STM32G4 Nucleo-64 board to a PC with a USB cable (Type-A to Micro-B)

through the USB connector CN1 of the board

4. Then, green LED LD3 (5V_PWR) and red LED LD1 (COM) light up, green LED LD2 (USER) blinks

5. Press user button B1 (left blue USER button)

6. Observe how the blinking of the green LED LD2 changes according to the clicks on button B1

7. The software demonstration and the several software examples that allow users exercise Nucleo features,

are available on the www.st.com/stm32nucleo webpage

8. Develop your own application using the available examples

Table 4. Jumper configuration

Jumper Definition Position(1) Comment(1)

JP1 NRST OFF STLINK-V3E reset

JP3 T_RST ON -

JP5 5 V power-source selection

ON [1-2] (Default) 5V_USB_STLK (from ST-LINK)

ON [3-4] (optional) 5V_VIN

ON [5-6] (optional) E5V

ON [7-8] (optional) 5V_USB_CHGR

JP6 IDD ON

JP7 BOOT0 OFF

JP8 VREF+ selection (VREF or VDD

voltage supply selection)

ON [1-2] (Default) VREF+ supplied with VREF

ON [2-3] (optional) VREF+ supplied with VDD

1. Default jumper state is shown in bold.

UM2505

Quick start

UM2505 - Rev 2 page 6/43

6Hardware layout and configuration

The STM32G4 Nucleo-64 board is designed around the STM32 microcontrollers in a 64-pin LQFP package.

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

Arduino™ Uno and ST morpho headers). Figure 4 and Figure 5 show the location of these features on the

STM32G4 Nucleo-64 board. The mechanical dimensions of the board are shown in Figure 6.

Figure 3. Hardware block diagram

STLINK-V3E part

STM32G4XXRY

OSC_32

SWD

32 kHz

crystal

VCP

UART

GPIO

GPIOGPIO

Embedded

STLINK-V3E

SWD VCP

UART

USB

Micro-B

connector

(CN1)

button

USER

button

RESET

Arduino™

ST morpho

GPIO

Arduino™

ST morpho

PWR SEL

STLK_RST

GND

DEBUG

BOOT0

VREFIDD

OSC

24 MHz

crystal

xxx

Red LED

LD4 (OC)

Green LED

LD2 (USER)

Green LED LD3

(5V_PWR)

Connectors

or jumpers

Green/Orange LED LD1

(COM)

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Hardware layout and configuration

UM2505 - Rev 2 page 7/43

6.1 PCB layout

Figure 4. Top layout

LD4 red LED

(Over current)

LD1 bicolor LED

(COM)

LD3 green LED

(5V_PWR)

CN1 STLINK-V3E

Micro-B USB connector

LD4 red LED

(Over current)

JP1

STLINK-V3E reset

CN2

DFU connector

U5 STM32F723IEK6

(STLINK-V3E MCU)

CN4

MIPI10 connector

JP3 Target reset

X1 (25 MHz)

B1 USER button

U11 5V_Vin regulator

LD1117S50TR

JP6

IDD measurement

JP7

BOOT0

CN6

Arduino™ connector

CN8

Arduino™ connector

CN7

ST morpho pin header

HW102

product sticker

32 kHz X3

24 MHz

CN9

Arduino™ connector

CN5

Arduino™ connector

CN10

ST morpho pin header

U14 voltage ref. IC

TL1431CL5T

JP8

VREF selection

U12 3V3 regulator

LD39050PU33R

JP5 5V power

source selection

B2 RESET button

UM2505

PCB layout

UM2505 - Rev 2 page 8/43

Figure 5. Bottom layout

CN1 STLINK-V3E

Micro-B USB connector

JP1

STLINK-V3E reset

CN2

DFU connector

JP5 5V power

source selection

JP8

VREF selection

JP6

IDD measurement

CN5

Arduino™ connector

CN9

Arduino™ connector

CN10

ST morpho pin header

CN8

Arduino™ connector

CN6

Arduino™ connector

CN7

ST morpho pin header

JP3 Target reset

CN4

MIPI10 connector

JP7 BOOT0

HW101

board sticker

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PCB layout

UM2505 - Rev 2 page 9/43

6.2 Mechanical drawing

Figure 6. STM32G4 Nucleo 64 board mechanical drawing (in millimeter)

6.3 Embedded STLINK-V3E

There are two different ways to program and debug the onboard STM32 MCU:

• Using the embedded STLINK-V3E

• Using an external debug tool connected to the CN4 MIPI10 connector.

The STLINK-V3E programming and debugging tool is integrated in the STM32G4 Nucleo-64 board.

UM2505

Mechanical drawing

UM2505 - Rev 2 page 10/43

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