.. zephyr:board:: nucleo_g071rb

Overview

The Nucleo G071RB board features an ARM Cortex-M0+ based STM32G071RB MCU with a wide range of connectivity support and configurations. Here are some highlights of the Nucleo G071RB board:

STM32 microcontroller in QFP64 package
Two types of extension resources:
- Arduino Uno V3 connectivity
- ST morpho extension pin headers for full access to all STM32 I/Os
On-board ST-LINK/V2-1 debugger/programmer with SWD connector
Flexible board power supply:
- USB VBUS or external source(3.3V, 5V, 7 - 12V)
- Power management access point
Three LEDs: USB communication (LD1), user LED (LD4), power LED (LD3)
Two push-buttons: USER and RESET

More information about the board can be found at the Nucleo G071RB website_.

Hardware

Nucleo G071RB provides the following hardware components:

STM32 microcontroller in LQFP64 package
Two types of extension resources:
- Arduino* Uno V3 connectivity
- ST morpho extension pin headers for full access to all STM32 I/Os
On-board ST-LINK/V2-1 debugger/programmer with SWD connector:
- Selection-mode switch to use the kit as a standalone ST-LINK/V2-1
Flexible board power supply:
- USB VBUS or external source (3.3V, 5V, 7 - 12V)
- Power management access point
Three LEDs:
- USB communication (LD1), user LED (LD4), power LED (LD3)
Two push-buttons: USER and RESET
USB re-enumeration capability. Three different interfaces supported on USB:
- Virtual COM port
- Mass storage
- Debug port

More information about STM32G071RB can be found here:

G071RB on www.st.com_
STM32G071 reference manual_

Supported Features

.. zephyr:board-supported-hw::

Connections and IOs

Each of the GPIO pins can be configured by software as output (push-pull or open-drain), as input (with or without pull-up or pull-down), or as peripheral alternate function. Most of the GPIO pins are shared with digital or analog alternate functions. All GPIOs are high current capable except for analog inputs.

Default Zephyr Peripheral Mapping:

UART_1 TX/RX : PC4/PC5
UART_2 TX/RX : PA2/PA3 (ST-Link Virtual Port Com)
I2C1 SCL/SDA : PB8/PB9 (Arduino I2C)
I2C2 SCL/SDA : PA11/PA12
SPI1 NSS/SCK/MISO/MOSI : PB0/PA5/PA6/PA7 (Arduino SPI)
SPI2 NSS/SCK/MISO/MOSI : PB12/PB13/PB14/PB15
USER_PB : PC13
LD4 : PA5
PWM : PA6
ADC1 IN0 : PA0
ADC1 IN1 : PA1
DAC1_OUT1 : PA4

For more details please refer to STM32 Nucleo-64 board User Manual_.

Programming and Debugging

.. zephyr:board-supported-runners::

Nucleo G071RB board includes an ST-LINK/V3 embedded debug tool interface.

Applications for the nucleo_g071rb board configuration can be built and flashed in the usual way (see :ref:build_an_application and :ref:application_run for more details).

Flashing

The board is configured to be flashed using west STM32CubeProgrammer_ runner, so its :ref:installation <stm32cubeprog-flash-host-tools> is required.

Alternatively, OpenOCD, JLink, or pyOCD can also be used to flash the board using the --runner (or -r) option:

.. code-block:: console

$ west flash --runner openocd $ west flash --runner jlink $ west flash --runner pyocd

Flashing an application to Nucleo G071RB

Here is an example for the :zephyr:code-sample:blinky application.

.. zephyr-app-commands:: :zephyr-app: samples/basic/blinky :board: nucleo_g071rb :goals: build flash

You will see the LED blinking every second.

Debugging

You can debug an application in the usual way. Here is an example for the :zephyr:code-sample:hello_world application.

.. zephyr-app-commands:: :zephyr-app: samples/hello_world :board: nucleo_g071rb :maybe-skip-config: :goals: debug

References

.. target-notes::

.. _Nucleo G071RB website: https://www.st.com/en/evaluation-tools/nucleo-g071rb.html

.. _STM32G071 reference manual: https://www.st.com/resource/en/reference_manual/dm00371828.pdf

.. _STM32 Nucleo-64 board User Manual: https://www.st.com/resource/en/user_manual/dm00452640.pdf

.. _G071RB on www.st.com: https://www.st.com/en/microcontrollers/stm32g071rb.html

.. _STM32CubeProgrammer: https://www.st.com/en/development-tools/stm32cubeprog.html