ST STM32G0 Manuale utente

Introduction

The STM32G0 Nucleo-32 board based on the MB1455 reference board (NUCLEO-G031K8) 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 STM32G0 microcontroller.

The Arduino™ Nano V3 connectivity support allows the easy expansion of the functionality of the STM32 Nucleo open

development platform with a wide choice of specialized shields.

The STM32G0 Nucleo-32 board does not require any separate probe as it integrates the ST-LINK/V2-1 debugger/programmer.

The STM32G0 Nucleo-32 board comes with the STM32 comprehensive free software libraries and examples available with the

STM32CubeG0 MCU Package.

Figure 1. NUCLEO-G031K8 top view Figure 2. NUCLEO-G031K8 bottom view

Pictures are not contractual.

STM32G0 Nucleo-32 board (MB1455)

UM2591

User manual

UM2591 - Rev 1 - June 2019

For further information contact your local STMicroelectronics sales office.

www.st.com

1Features

•STM32G031K8T6U microcontroller (Arm® Cortex®-M0+ at 64 MHz) in LQFP32 package, featuring

64 Kbytes of Flash memory and 8 Kbytes of SRAM

• 1 user LED

• 1 RESET or user push-button

• Board connectors:

– Arduino™ Nano V3 expansion connector

– USB with Micro-B

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

• On-board ST-LINK/V2-1 debugger/programmer with USB re-enumeration capability: mass storage, Virtual

COM port, and debug port

• Comprehensive free software libraries and examples available with the STM32CubeG0 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.

UM2591

Features

UM2591 - Rev 1 page 2/26

2Ordering information

To order the STM32G0 Nucleo-32 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 Reference board Target STM32

NUCLEO-G031K8 MB1455 STM32G031K8T6U

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 Products and codification

The meaning of the codification is explained in Table 2.

Table 2. Codification explanation

NUCLEO-XXYYKT Description Example: NUCLEO-G031K8

XX MCU series in STM32 Arm Cortex MCUs STM32G0 Series

YY MCU product line in the series STM32G031

K STM32 package pin count 32 pins

TSTM32 Flash memory size:

• 8 for 64 Kbytes 64 Kbytes

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

UM2591

Ordering information

UM2591 - Rev 1 page 3/26

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® free 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.

UM2591

Development environment

UM2591 - Rev 1 page 4/26

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

UM2591

Conventions

UM2591 - Rev 1 page 5/26

5Quick start

The STM32G0 Nucleo-32 board is a low-cost and easy-to-use development kit, used to evaluate and start a

development quickly with an STM32G0 Series microcontroller in LFQFP 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 STM32G0 Nucleo-32 and for demonstration software, visit the www.st.com/stm32nucleo

webpage.

5.1 Getting started

Follow the sequence below to configure the STM32G0 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 ST-LINK/V2-1 USB driver available on the www.st.com website

3. To power the board, connect the STM32G0 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, red LED LD1 (COM) and green LED LD2 (5V_PWR) light up, green LED LD3 blinks

5. Remove the jumper placed between D2 (CN3 pin 5) and GND (CN3 pin 4)

6. Observe how the blinking of the green LED LD3 changes, when the jumper is in place or removed

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

features. These are available on the NUCLEO-G031K8 webpage

8. Develop your own application using the available examples

Table 4. Jumper configuration

Jumper Definition Position(1) Comment(1)

JP1 IDD ON For STM32G0 current measurement

1. Default jumper state is shown in bold.

UM2591

Quick start

UM2591 - Rev 1 page 6/26

6Hardware layout and configuration

The STM32G0 Nucleo-32 board is designed around an STM32G031 microcontroller in an LFQFP 32-pin

package. Figure 3 shows the connections between the STM32 and its peripherals (ST-LINK/V2-1, push-button,

LEDs, USB, and Arduino™ Nano). Figure 4. Top layout and Figure 5. Bottom layout show the location of these

features on the STM32G0 Nucleo-32 board. The mechanical dimensions of the board are shown in Figure 6.

Figure 3. Hardware block diagram

Embedded

ST-LINK/V2-1

STM32

microcontroller

RESET

Micro

USB

I/O I/O

RST

Arduino™ Nano

connector

LED

LD3

Nucleo-32 board

Arduino™ Nano

connector

UM2591

Hardware layout and configuration

UM2591 - Rev 1 page 7/26

6.1 PCB layout

Figure 4. Top layout

LD1

red/green LED (COM)

LD3

green LED (USER)

CN1 ST-LINK/V2-1

Micro-B USB connector

LD2

red LED (PWR)

SB2

ST-LINK reset

RESET or user push-button

STM32G031K8T6U microcontroller

LD4

red LED (OC)

UM2591

PCB layout

UM2591 - Rev 1 page 8/26

Figure 5. Bottom layout

JP1

IDD measurement

CN4

Arduino™ Nano connector

CN3

Arduino™ Nano connector

ST-LINK/V2-1 microcontroller

UM2591

PCB layout

UM2591 - Rev 1 page 9/26

6.2 Mechanical drawing

Figure 6. STM32G0 Nucleo-32 board mechanical drawing (in millimeter)

6.3 Embedded ST-LINK/V2-1

The ST-LINK/V2-1 programming and debugging tool is integrated in the STM32G0 Nucleo-32 board.

For detailed information about the debugging and programming features of ST-LINK/V2-1, refer to the ST-LINK/V2

in-circuit debugger/programmer for STM8 and STM32 user manual (UM1075) and Overview of ST-LINK

derivatives technical note (TN1235).

Features supported by the ST-LINK/V2-1:

• USB software re-enumeration

• Virtual COM port interface on USB

• Mass storage interface on USB

UM2591

Mechanical drawing

UM2591 - Rev 1 page 10/26

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