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Overview

boards/st/nucleo_g0b1re/doc/index.rst

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.. zephyr:board:: nucleo_g0b1re

Overview

The Nucleo G0B1RE board features an ARM Cortex-M0+ based STM32G0B1RE MCU with a wide range of connectivity support and configurations. Here are some highlights of the Nucleo G0B1RE board:

  • STM32 microcontroller in QFP64 package

  • Board connectors:

    • 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:

    • 5V_USB_STLK from ST-Link USB connector
    • VIN (7 - 12V) from ARDUINO connector or ST morpho connector
    • E5V from ST morpho connector
    • 5V_USB_CHG from ST-LINK USB connector
    • 3.3V on ARDUINO connector or ST morpho connector

  • Three LEDs: USB communication (LD1), user LED (LD4), power LED (LD3)

  • Two push-buttons: USER and RESET

  • 32.768 kHz crystal oscillator

More information about the board can be found at the Nucleo G0B1RE website_.

Hardware

Nucleo G0B1RE provides the following hardware components:

  • STM32G0B1RE in LQFP64 package
  • ARM 32-bit Cortex-M0+ CPU
  • 64 MHz max CPU frequency
  • Voltage range from 1.7 V to 3.6 V
  • 512 KB Flash
  • 144 kB SRAM
  • 32-bit timers(1)
  • 16-bit timers(11)
  • watchdogs(2)
  • systick(1)
  • Calendar RTC with alarm and periodic wakeup
  • I2C(3)
  • USART(6)
  • LPUART(2)
  • 32 Mbit/s SPI(3) multiplexed with I2S(2)
  • HDMI_CEC(1)
  • USB 2.0 FS device (crystal-less) and host controller(1)
  • USB Type-C Power Delivery controller
  • CAN FD(2)
  • GPIO (up to 94) with external interrupt capability
  • Tamper Pins(3)
  • 12-bit ADC with 16 channels
  • 12-bit DAC with 2 channels(2)
  • Analog Comparator(3)
  • 12-channel DMA

More information about STM32G0B1RE can be found here:

  • G0B1RE on www.st.com_
  • STM32G0B1 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
  • FDCAN1 RX/TX: PA11/PA12
  • FDCAN2 RX/TX: PB0/PB1

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

Programming and Debugging

.. zephyr:board-supported-runners::

Nucleo G0B1RE board includes an ST-LINK/V2-1 embedded debug tool interface.

Applications for the nucleo_g0b1re 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

For STM32G0 support pyocd needs additional target information, which can be installed by adding "pack" support with the following pyocd command:

.. code-block:: console

$ pyocd pack --update $ pyocd pack --install stm32g0

Flashing an application to Nucleo G0B1RE

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

.. zephyr-app-commands:: :zephyr-app: samples/basic/blinky :board: nucleo_g0b1re :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_g0b1re :maybe-skip-config: :goals: debug

References

.. target-notes::

.. _Nucleo G0B1RE website: https://www.st.com/en/evaluation-tools/nucleo-g0b1re.html

.. _STM32G0B1 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

.. _G0B1RE on www.st.com: https://www.st.com/en/microcontrollers/stm32g0b1re.html

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