ST STM32G4 Nucleo-32 Bedienungsanleitung

Introduction

The STM32G4 Nucleo-32 board (NUCLEO-G431KB) provides an affordable and flexible way for users to try out new concepts

and build prototypes, by choosing from the various combinations of performance, power consumption and features provided by

the STM32G4 Series microcontroller. The ARDUINO® Nano V3 connectivity provides easy means of expanding the functionality

of the Nucleo open development platform with a wide choice of specialized shields. The STM32G4 Nucleo-32 board does not

require any separate probe as it integrates the STLINK-V3E debugger/programmer. The STM32G4 Nucleo-32 board comes

with the comprehensive free software libraries and examples available with the STM32CubeG4 MCU Package.

Figure 1. NUCLEO-G431KB top view Figure 2. NUCLEO-G431KB bottom view

Pictures are not contractual.

STM32G4 Nucleo-32 board (MB1430)

UM2397

User manual

UM2397 - Rev 2 - September 2019

For further information contact your local STMicroelectronics sales office.

www.st.com

1Features

• STM32G4 microcontroller (Arm® Cortex®-M4 at 170 MHz) in UFQFPN32 package, featuring 128 Kbytes of

Flash memory and 32 Kbytes of SRAM for STM32G431KBT6

• 1 user LED

• 1 RESET push button

• 24 MHz HSE crystal oscillator

• Board connectors:

– USB with Micro-B

–ARDUINO® Nano V3 expansion connector

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

• On-board STLINK-V3E debugger/programmer with SWD connector:

– USB re-enumeration capability: virtual COM port, mass storage, debug port

• Comprehensive free software libraries and examples available with the STM32Cube package

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

UM2397

Features

UM2397 - Rev 2 page 2/30

2Ordering information

To order the STM32G4 Nucleo-32 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-G431KB MB1430 STM32G431KBT6U

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.

This board features 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-XXYYKT Description Example: NUCLEO-G431KB

XX MCU series in STM32 Arm Cortex MCUs STM32G4 Series

YY MCU product line in the series STM32G431

K STM32 package pin count 32 pins

BSTM32 Flash memory size:

• B for 128 Kbytes 128 Kbytes

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Ordering information

UM2397 - Rev 2 page 3/30

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.

All other trademarks are the property of their respective owners.

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

UM2397 - Rev 2 page 4/30

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

UM2397

Conventions

UM2397 - Rev 2 page 5/30

5Quick start

The STM32G4 Nucleo-32 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 LFQFPN 32-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 STM32G4 Nucleo-32 and for demonstration software, visit the www.st.com/stm32nucleo

webpage.

5.1 Getting started

Follow the sequence below to configure the STM32G4 Nucleo-32 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-32 board to a PC with a USB cable (Type-A to Micro-B)

through the USB connector CN1 of the board.

4. Then, LED LD1 (COM) and green LED LD4 (5V_PWR) light up, green LED LD2 blinks.

5. Remove the jumper placed between D2 (CN4 pin 5) and GND (CN4 pin 4).

6. Observe how the blinking of the green LED LD2 changes, when the jumper is in place or removed.

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

Nucleo features. These are available on the NUCLEO-G431KB webpage

8. Develop your own application using the available examples

Table 4. Jumper configuration

Jumper Definition Position(1) Comment(1)

JP1 IDD ON For STM32G4 current

measurements

1. Default jumper state is in bold.

UM2397

Quick start

UM2397 - Rev 2 page 6/30

6Hardware layout and configuration

The STM32G4 Nucleo-32 board is designed around the STM32 microcontrollers in a 32-pin UFQFPN package.

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

and Arduino Nano). Figure 4 and Figure 5 show the location of these features on the STM32G4 Nucleo-32 board.

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

Figure 3. Hardware block diagram

Connector

or jumper

STLINK-V3E Part

STM32G431KB

SWD VCP

UART

GPIOs

GPIOGPIO

button

RESET

ARDUINO® NANO

GPIO

ARDUINO® NANO

IDD

Bicolor

LED

LD1

(COM)

OSC

24 MHz

Crystal

Red LED

LD3 (OC)

Green LED

LD2 (USER)

Green LED

LD4

(5V_PWR)

USB

Micro-B

connector

(CN1)

25 MHz

Crystal

STLK

MCO

Embedded

STLINK-V3E

SWD VCP

UART

XXX

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Hardware layout and configuration

UM2397 - Rev 2 page 7/30

6.1 PCB layout

Figure 4. Top layout

U1 Main CPU

(STM32G431KBT6)

CN1

STLINK-V3E Micro-B

USB connector

CN2

SWD connector (not fitted)

LD2 green LED (USER)

LD4 green LED (5V_PWR)

B1 green RESET button

LD1 bicolor LED (COM)

X1 25 MHz oscillator

X2 24 MHz HSE crystal

LD3 red LED (Overcurrent)

UM2397

PCB layout

UM2397 - Rev 2 page 8/30

Figure 5. Bottom layout

CN1

STLINK-V3E Micro-B

USB connector

U4 Common mode

filter with ESD

protection for USB

HW1 (2.54 mm

jumper) on CN4 [4-5]

5V_USB_STLK regulator

STMPS2151STR

CN4

ARDUINO® Nano

connector

JP1 (1.27 mm jumper) for

IDD measurement

HW2 (1.27 mm jumper)

fitted on JP1 [1-2]

CN3

ARDUINO® Nano

connector

U6 3V3_STLK regulator

LD3985M33R

U8 5V_VIN regulator

LD1117S50TR

U9 3V3 regulator

LD39050PU33R

U5 STM32F723IEK6

(STLINK-V3E MCU)

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PCB layout

UM2397 - Rev 2 page 9/30

6.2 Mechanical drawing

Figure 6. STM32G4 Nucleo 32 board mechanical drawing (in millimeter)

18.542 mm

50.292 mm

UM2397

Mechanical drawing

UM2397 - Rev 2 page 10/30

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