236 lines
7.6 KiB
ReStructuredText
236 lines
7.6 KiB
ReStructuredText
.. _nucleo_f746zg_board:
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ST Nucleo F746ZG
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################
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Overview
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********
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The STM32 Nucleo-144 boards offer combinations of performance and power that
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provide an affordable and flexible way for users to build prototypes and try
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out new concepts. For compatible boards, the SMPS significantly reduces power
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consumption in Run mode.
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The Arduino-compatible ST Zio connector expands functionality of the Nucleo
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open development platform, with a wide choice of specialized Arduino* Uno V3
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shields.
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The STM32 Nucleo-144 board does not require any separate probe as it integrates
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the ST-LINK/V2-1 debugger/programmer.
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The STM32 Nucleo-144 board comes with the STM32 comprehensive free software
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libraries and examples available with the STM32Cube MCU Package.
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Key Features
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- STM32 microcontroller in LQFP144 package
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- Ethernet compliant with IEEE-802.3-2002 (depending on STM32 support)
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- USB OTG or full-speed device (depending on STM32 support)
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- 3 user LEDs
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- 2 user and reset push-buttons
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- 32.768 kHz crystal oscillator
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- Board connectors:
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- USB with Micro-AB
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- SWD
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- Ethernet RJ45 (depending on STM32 support)
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- ST Zio connector including Arduino* Uno V3
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- ST morpho
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- Flexible power-supply options: ST-LINK USB VBUS or external sources.
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- On-board ST-LINK/V2-1 debugger/programmer with USB re-enumeration
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- capability: mass storage, virtual COM port and debug port.
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- Comprehensive free software libraries and examples available with the
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STM32Cube MCU package.
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- Arm* Mbed Enabled* compliant (only for some Nucleo part numbers)
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.. image:: img/nucleo_f746zg.jpg
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:align: center
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:alt: Nucleo F746ZG
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More information about the board can be found at the `Nucleo F746ZG website`_.
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Hardware
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********
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Nucleo F746ZG provides the following hardware components:
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- STM32F746ZG in LQFP144 package
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- ARM 32-bit Cortex-M7 CPU with FPU
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- Chrom-ART Accelerator
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- ART Accelerator
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- 216 MHz max CPU frequency
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- VDD from 1.7 V to 3.6 V
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- 1 MB Flash
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- 320 KB SRAM
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- 16-bit timers(10)
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- 32-bit timers(2)
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- SPI(6)
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- I2C(4)
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- I2S (3)
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- USART(4)
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- UART(4)
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- USB OTG Full Speed and High Speed(1)
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- USB OTG Full Speed(1)
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- CAN(2)
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- SAI(2)
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- SPDIF_Rx(4)
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- HDMI_CEC(1)
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- Dual Mode Quad SPI(1)
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- Camera Interface
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- GPIO(up to 168) with external interrupt capability
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- 12-bit ADC(3) with 24 channels / 2.4 MSPS
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- 12-bit DAC with 2 channels(2)
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- True Random Number Generator (RNG)
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- 16-channel DMA
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- LCD-TFT Controller with XGA resolution
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Supported Features
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==================
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The Zephyr nucleo_f746zg board configuration supports the following hardware
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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 |
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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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| ETHERNET | on-chip | ethernet |
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+-------------+------------+-------------------------------------+
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| USB | on-chip | usb_device |
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+-------------+------------+-------------------------------------+
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| COUNTER | on-chip | rtc |
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+-------------+------------+-------------------------------------+
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| I2C | on-chip | i2c |
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+-------------+------------+-------------------------------------+
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| PWM | on-chip | pwm |
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+-------------+------------+-------------------------------------+
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| SPI | on-chip | spi |
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+-------------+------------+-------------------------------------+
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| WATCHDOG | on-chip | independent watchdog |
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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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| Backup SRAM | on-chip | Backup SRAM |
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+-------------+------------+-------------------------------------+
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Other hardware features are not yet supported on this Zephyr port.
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The default configuration can be found in the defconfig file:
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``boards/arm/nucleo_f746zg/nucleo_f746zg_defconfig``
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For mode details please refer to `STM32 Nucleo-144 board User Manual`_.
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Default Zephyr Peripheral Mapping:
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----------------------------------
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The Nucleo F746ZG board features a ST Zio connector (extended Arduino Uno V3)
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and a ST morpho connector. Board is configured as follows:
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- UART_2 TX/RX/RTS/CTS : PD5/PD6/PD4/PD3
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- UART_3 TX/RX : PD8/PD9 (ST-Link Virtual Port Com)
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- UART_6 TX/RX : PG14/PG9 (Arduino UART)
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- USER_PB : PC13
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- LD1 : PB0
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- LD2 : PB7
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- LD3 : PB14
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- ETH : PA1, PA2, PA7, PB13, PC1, PC4, PC5, PG11, PG13
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- USB DM : PA11
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- USB DP : PA12
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- I2C : PB8, PB9
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- PWM : PE13
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- SPI : PD14, PA5, PA6, PA7
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- ADC1_IN0 : PA0
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- DAC1_OUT1 : PA4
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Note. The Arduino Uno v3 specified SPI device conflicts with the on-board ETH
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device on pin PA7.
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System Clock
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------------
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Nucleo F746ZG System Clock could be driven by an internal or external
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oscillator, as well as the main PLL clock. By default, the System clock is
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driven by the PLL clock at 72MHz, driven by an 8MHz high-speed external clock.
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Serial Port
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-----------
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Nucleo F746ZG board has 4 UARTs and 4 USARTs. The Zephyr console output is
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assigned to UART3. Default settings are 115200 8N1.
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Backup SRAM
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-----------
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In order to test backup SRAM you may want to disconnect VBAT from VDD. You can
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do it by removing ``SB156`` jumper on the back side of the board.
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Programming and Debugging
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*************************
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Applications for the ``nucleo_f746zg`` 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 F746ZG board includes an ST-LINK/V2-1 embedded debug tool interface.
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Flashing an application to Nucleo F746ZG
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----------------------------------------
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Here is an example for the :ref:`hello_world` application.
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Run a serial host program to connect with your Nucleo board.
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.. code-block:: console
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$ minicom -b 115200 -D /dev/ttyACM0
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Build and flash the application:
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.. zephyr-app-commands::
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:zephyr-app: samples/hello_world
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:board: nucleo_f746zg
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:goals: build flash
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You should see the following message on the console:
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.. code-block:: console
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$ Hello World! nucleo_f746zg
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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_f746zg
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:maybe-skip-config:
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:goals: debug
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.. _Nucleo F746ZG website:
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https://www.st.com/en/evaluation-tools/nucleo-f746zg.html
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.. _STM32 Nucleo-144 board User Manual:
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http://www.st.com/resource/en/user_manual/dm00244518.pdf
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.. _STM32F746ZG on www.st.com:
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https://www.st.com/content/st_com/en/products/microcontrollers/stm32-32-bit-arm-cortex-mcus/stm32-high-performance-mcus/stm32f7-series/stm32f7x6/stm32f746zg.html
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.. _STM32F746 reference manual:
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https://www.st.com/resource/en/reference_manual/dm00124865.pdf
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