193 lines
6.5 KiB
ReStructuredText
193 lines
6.5 KiB
ReStructuredText
.. _nucleo_l073rz_board:
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ST Nucleo L073RZ
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################
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Overview
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********
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The STM32 Nucleo-64 development board with STM32L073RZ MCU, supports Arduino and ST morpho connectivity.
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The STM32 Nucleo board provides an affordable, and flexible way for users to try out new concepts,
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and build prototypes with the STM32 microcontroller, choosing from the various
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combinations of performance, power consumption, and features.
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The Arduino* Uno V3 connectivity support and the ST morpho headers allow easy functionality
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expansion of the STM32 Nucleo open development platform with a wide choice of
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specialized shields.
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The STM32 Nucleo board integrates the ST-LINK/V2-1 debugger and programmer.
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The STM32 Nucleo board comes with the STM32 comprehensive software HAL library together
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with various packaged software examples.
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.. image:: img/nucleo_l073rz.jpg
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:align: center
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:alt: Nucleo L073RZ
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More information about the board can be found at the `Nucleo L073RZ website`_.
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Hardware
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********
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Nucleo L073RZ provides the following hardware components:
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- STM32 microcontroller in QFP64 package
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- Two types of extension resources:
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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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- ARM* mbed*
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- On-board ST-LINK/V2-1 debugger/programmer with SWD connector:
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- Selection-mode switch to use the kit as a standalone ST-LINK/V2-1
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- Flexible board power supply:
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- USB VBUS or external source (3.3V, 5V, 7 - 12V)
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- Power management access point
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- Three LEDs:
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- USB communication (LD1), user LED (LD2), power LED (LD3)
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- Two push-buttons: USER and RESET
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- USB re-enumeration capability. Three different interfaces supported on USB:
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- Virtual COM port
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- Mass storage
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- Debug port
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- Support of wide choice of Integrated Development Environments (IDEs) including:
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- IAR
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- ARM Keil
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- GCC-based IDEs
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More information about STM32L073RZ can be found in the
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`STM32L0x3 reference manual`_
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Supported Features
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==================
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The Zephyr nucleo_l073rz 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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| 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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| CLOCK | on-chip | reset and clock control |
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+-----------+------------+-------------------------------------+
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| I2C | on-chip | i2c controller |
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+-----------+------------+-------------------------------------+
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| SPI | on-chip | spi controller |
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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 Controller |
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+-----------+------------+-------------------------------------+
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| DAC | on-chip | DAC Controller |
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+-----------+------------+-------------------------------------+
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| RNG | on-chip | Random Number Generator |
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+-----------+------------+-------------------------------------+
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| EEPROM | on-chip | eeprom |
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+-----------+------------+-------------------------------------+
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| die-temp | on-chip | die temperature sensor |
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+-----------+------------+-------------------------------------+
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| RTC | on-chip | rtc |
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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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:zephyr_file:`boards/st/nucleo_l073rz/nucleo_l073rz_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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Board connectors:
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-----------------
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.. image:: img/nucleo_l073rz_connectors.jpg
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:align: center
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:alt: Nucleo L073RZ connectors
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Default Zephyr Peripheral Mapping:
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----------------------------------
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- UART_1 TX/RX : PB6/PB7
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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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- SPI1 SCK/MISO/MOSI : PA5/PA6/PA7 (Arduino SPI)
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- USER_PB : PC13
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- LD2 : PA5
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- DAC : PA4
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- PWM_2_CH1 : PA5 (might conflict with SPI1)
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For more 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_l073rz`` 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 L073RZ board includes an ST-LINK/V2-1 embedded debug tool interface.
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This interface is supported by the openocd version included in the Zephyr SDK.
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Flashing an application to Nucleo L073RZ
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----------------------------------------
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Here is an example for the :zephyr:code-sample:`blinky` application.
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.. zephyr-app-commands::
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:zephyr-app: samples/basic/blinky
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:board: nucleo_l073rz
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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_l073rz
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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 L073RZ website:
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https://www.st.com/en/evaluation-tools/nucleo-l073rz.html
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.. _STM32L0x3 reference manual:
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https://www.st.com/resource/en/reference_manual/dm00095744.pdf
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.. _STM32 Nucleo-64 board User Manual:
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https://www.st.com/resource/en/user_manual/dm00105823.pdf
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