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 [1].

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:

Supported Features

The nucleo_g0b1re board supports the hardware features listed below.

on-chip / on-board
Feature integrated in the SoC / present on the board.
2 / 2
Number of instances that are enabled / disabled.
Click on the label to see the first instance of this feature in the board/SoC DTS files.
vnd,foo
Compatible string for the Devicetree binding matching the feature.
Click on the link to view the binding documentation.

nucleo_g0b1re/stm32g0b1xx target

Type

Location

Description

Compatible

CPU

on-chip

ARM Cortex-M0+ CPU1

arm,cortex-m0+

ADC

on-chip

STM32 ADC1

st,stm32-adc

CAN

on-chip

STM32 FDCAN CAN FD controller2

st,stm32-fdcan

Clock control

on-chip

STM32F0/G0 RCC (Reset and Clock controller)1

st,stm32f0-rcc

on-chip

STM32 HSE Clock1

st,stm32-hse-clock

on-chip

STM32G0 HSI Clock1

st,stm32g0-hsi-clock

on-chip

STM32 LSE Clock1

st,stm32-lse-clock

on-chip

Generic fixed-rate clock provider1

fixed-clock

on-chip

STM32G0 main PLL1

st,stm32g0-pll-clock

on-chip

STM32 HSI48 Clock1

st,stm32-hsi48-clock

Counter

on-chip

STM32 counters8

st,stm32-counter

DAC

on-chip

STM32 family DAC1

st,stm32-dac

DMA

on-chip

STM32 DMA controller (V2)2

st,stm32-dma-v2

on-chip

STM32 DMAMUX controller1

st,stm32-dmamux

Flash controller

on-chip

STM32 Family flash controller1

st,stm32-flash-controller

GPIO & Headers

on-chip

STM32 GPIO Controller6

st,stm32-gpio

on-board

GPIO pins exposed on Arduino Uno (R3) headers1

arduino-header-r3

on-board

GPIO pins exposed on ST Morpho connector1

st-morpho-header

I2C

on-chip

STM32 I2C V2 controller2 1

st,stm32-i2c-v2

Input

on-board

Group of GPIO-bound input keys1

gpio-keys

Interrupt controller

on-chip

ARMv6-M NVIC (Nested Vectored Interrupt Controller) controller1

arm,v6m-nvic

on-chip

STM32G0 External Interrupt Controller1

st,stm32g0-exti

LED

on-board

Group of GPIO-controlled LEDs1

gpio-leds

Memory controller

on-chip

STM32 Battery Backed RAM1

st,stm32-bbram

MTD

on-chip

STM32 flash memory1

st,stm32-nv-flash

on-board

Fixed partitions of a flash (or other non-volatile storage) memory1

fixed-partitions

PHY

on-chip

This binding is to be used by all the usb transceivers which are built-in with USB IP1

usb-nop-xceiv

Pin control

on-chip

STM32 Pin controller1

st,stm32-pinctrl

PWM

on-chip

STM32 PWM2 6

st,stm32-pwm

Reset controller

on-chip

STM32 Reset and Clock Control (RCC) Controller1

st,stm32-rcc-rctl

RTC

on-chip

STM32 RTC1

st,stm32-rtc

Sensors

on-chip

STM32 family TEMP node for production calibrated sensors with two calibration temperatures1

st,stm32-temp-cal

on-chip

STM32 VREF+1

st,stm32-vref

on-chip

STM32 VBAT1

st,stm32-vbat

Serial controller

on-chip

STM32 USART2 4

st,stm32-usart

on-chip

STM32 LPUART2

st,stm32-lpuart

SMbus

on-chip

STM32 SMBus controller3

st,stm32-smbus

SPI

on-chip

STM32 SPI controller with embedded Rx and Tx FIFOs2 1

st,stm32-spi-fifo

SRAM

on-chip

Generic on-chip SRAM description1

mmio-sram

USB Type-C Port Controller

on-chip

STM32 USB Type-C / Power Delivery2

st,stm32-ucpd

Timer

on-chip

ARMv6-M System Tick1

arm,armv6m-systick

on-chip

STM32 low-power timer (LPTIM)1

st,stm32-lptim

on-chip

STM32 timers2 8

st,stm32-timers

USB

on-chip

STM32 USB controller1

st,stm32-usb

Watchdog

on-chip

STM32 watchdog1

st,stm32-watchdog

on-chip

STM32 system window watchdog1

st,stm32-window-watchdog

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 [3].

Programming and Debugging

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 Building an Application and Run an Application for more details).

Flashing

The board is configured to be flashed using west STM32CubeProgrammer [5] runner, so its installation is required.

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

$ 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:

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

Flashing an application to Nucleo G0B1RE

Here is an example for the Blinky application.

# From the root of the zephyr repository
west build -b nucleo_g0b1re samples/basic/blinky
west 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 Hello World application.

# From the root of the zephyr repository
west build -b nucleo_g0b1re samples/hello_world
west debug

References