208 lines
6.7 KiB
ReStructuredText
208 lines
6.7 KiB
ReStructuredText
.. _nucleo_g0b1re_board:
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ST Nucleo G0B1RE
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################
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Overview
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********
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The Nucleo G0B1RE board features an ARM Cortex-M0+ based STM32G0B1RE MCU
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with a wide range of connectivity support and configurations. Here are
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some highlights of the Nucleo G0B1RE board:
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- STM32 microcontroller in QFP64 package
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- Board connectors:
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- Arduino Uno V3 connectivity
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- ST morpho extension pin headers for full access to all STM32 I/Os
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- On-board ST-LINK/V2-1 debugger/programmer with SWD connector
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- Flexible board power supply:
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- 5V_USB_STLK from ST-Link USB connector
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- VIN (7 - 12V) from ARDUINO connector or ST morpho connector
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- E5V from ST morpho connector
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- 5V_USB_CHG from ST-LINK USB connector
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- 3.3V on ARDUINO connector or ST morpho connector
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- Three LEDs: USB communication (LD1), user LED (LD4), power LED (LD3)
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- Two push-buttons: USER and RESET
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- 32.768 kHz crystal oscillator
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.. image:: img/nucleo_g0b1re.jpg
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:width: 500px
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:height: 367px
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:align: center
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:alt: Nucleo G0B1RE
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More information about the board can be found at the `Nucleo G0B1RE website`_.
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Hardware
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********
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Nucleo G0B1RE provides the following hardware components:
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- STM32G0B1RE in LQFP64 package
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- ARM 32-bit Cortex-M0+ CPU
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- 64 MHz max CPU frequency
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- Voltage range from 1.7 V to 3.6 V
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- 512 KB Flash
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- 144 kB SRAM
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- 32-bit timers(1)
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- 16-bit timers(11)
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- watchdogs(2)
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- systick(1)
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- Calendar RTC with alarm and periodic wakeup
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- I2C(3)
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- USART(6)
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- LPUART(2)
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- 32 Mbit/s SPI(3) multiplexed with I2S(2)
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- HDMI_CEC(1)
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- USB 2.0 FS device (crystal-less) and host controller(1)
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- USB Type-C Power Delivery controller
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- CAN-FD(2)
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- GPIO (up to 94) with external interrupt capability
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- Tamper Pins(3)
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- 12-bit ADC with 16 channels
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- 12-bit DAC with 2 channels(2)
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- Analog Comparator(3)
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- 12-channel DMA
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More information about STM32G0B1RE can be found here:
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- `G0B1RE on www.st.com`_
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- `STM32G0B1 reference manual`_
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Supported Features
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==================
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The Zephyr nucleo_g0b1re board configuration supports the following hardware features:
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+-----------+------------+-------------------------------------+
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| Interface | Controller | Driver/Component |
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+===========+============+=====================================+
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| MPU | on-chip | arm memory protection unit |
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+-----------+------------+-------------------------------------+
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| NVIC | on-chip | nested vector interrupt controller |
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+-----------+------------+-------------------------------------+
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| UART | on-chip | serial port-polling; |
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| | | serial port-interrupt |
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+-----------+------------+-------------------------------------+
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| PINMUX | on-chip | pinmux |
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+-----------+------------+-------------------------------------+
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| GPIO | on-chip | gpio |
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+-----------+------------+-------------------------------------+
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| I2C | on-chip | i2c |
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+-----------+------------+-------------------------------------+
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| SPI | on-chip | spi |
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+-----------+------------+-------------------------------------+
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| CLOCK | on-chip | reset and clock control |
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+-----------+------------+-------------------------------------+
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| COUNTER | on-chip | rtc |
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+-----------+------------+-------------------------------------+
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| WATCHDOG | on-chip | independent watchdog |
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+-----------+------------+-------------------------------------+
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| PWM | on-chip | pwm |
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+-----------+------------+-------------------------------------+
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| ADC | on-chip | adc |
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+-----------+------------+-------------------------------------+
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| DAC | on-chip | dac |
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+-----------+------------+-------------------------------------+
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Other hardware features are not yet supported in this Zephyr port.
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The default configuration can be found in the defconfig file:
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``boards/arm/nucleo_g0b1re/nucleo_g0b1re_defconfig``
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Connections and IOs
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===================
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Each of the GPIO pins can be configured by software as output (push-pull or open-drain), as
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input (with or without pull-up or pull-down), or as peripheral alternate function. Most of the
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GPIO pins are shared with digital or analog alternate functions. All GPIOs are high current
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capable except for analog inputs.
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Default Zephyr Peripheral Mapping:
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----------------------------------
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- UART_1 TX/RX : PC4/PC5
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- UART_2 TX/RX : PA2/PA3 (ST-Link Virtual Port Com)
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- I2C1 SCL/SDA : PB8/PB9 (Arduino I2C)
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- I2C2 SCL/SDA : PA11/PA12
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- SPI1 NSS/SCK/MISO/MOSI : PB0/PA5/PA6/PA7 (Arduino SPI)
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- SPI2 NSS/SCK/MISO/MOSI : PB12/PB13/PB14/PB15
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- USER_PB : PC13
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- LD4 : PA5
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- PWM : PA6
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- ADC1 IN0 : PA0
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- ADC1 IN1 : PA1
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- DAC1_OUT1 : PA4
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For mode details please refer to `STM32 Nucleo-64 board User Manual`_.
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Programming and Debugging
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*************************
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Applications for the ``nucleo_g0b1re`` board configuration can be built and
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flashed in the usual way (see :ref:`build_an_application` and
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:ref:`application_run` for more details).
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Flashing
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========
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Nucleo G0B1RE board includes an ST-LINK/V2-1 embedded debug tool interface.
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This interface is not yet supported by the openocd version included in the Zephyr SDK.
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But JLink, STM32CubeProgrammer and Pyocd interfaces are supported.
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Pyocd support is currently limited: As the stm32g0b1 target causes issues,
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the stm32g071 target is used. For STM32G0 support pyocd needs additional target
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information, which can be installed by adding "pack" support with the
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following pyocd command:
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.. code-block:: console
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$ pyocd pack --update
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$ pyocd pack --install stm32g0
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Flashing an application to Nucleo G0B1RE
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----------------------------------------
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Here is an example for the :ref:`blinky-sample` application.
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.. zephyr-app-commands::
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:zephyr-app: samples/basic/blinky
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:board: nucleo_g0b1re
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:goals: build flash
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You will see the LED blinking every second.
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Debugging
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=========
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You can debug an application in the usual way. Here is an example for the
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:ref:`hello_world` application.
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.. zephyr-app-commands::
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:zephyr-app: samples/hello_world
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:board: nucleo_g0b1re
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:maybe-skip-config:
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:goals: debug
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References
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**********
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.. target-notes::
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.. _Nucleo G0B1RE website:
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http://www.st.com/en/evaluation-tools/nucleo-g0b1re.html
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.. _STM32G0B1 reference manual:
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http://www.st.com/resource/en/reference_manual/dm00371828.pdf
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.. _STM32 Nucleo-64 board User Manual:
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http://www.st.com/resource/en/user_manual/dm00452640.pdf
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.. _G0B1RE on www.st.com:
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http://www.st.com/en/microcontrollers/stm32g0b1re.html
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