boards/st/stm32u5g9j_dk2/doc/index.rst
.. zephyr:board:: stm32u5g9j_dk2
Overview
The STM32U5G9J-DK2 Discovery kit is a complete demonstration and development platform for the STM32U5G9ZJT6Q microcontroller, featuring an Arm® Cortex®‑M33 core with Arm® TrustZone®.
Leveraging the innovative ultra-low power-oriented features, 3 Mbytes of embedded SRAM, 4 Mbytes of embedded flash memory, and rich graphics features, the STM32U5G9J-DK2 Discovery kit enables users to prototype applications with state-of-the-art energy efficiency, as well as providing stunning and optimized graphics rendering with the support of a 2.5D Neo-Chrom accelerator, chrom-ART Accelerator, and Chrom-GRC™ MMU.
The STM32U5G9J-DK2 Discovery kit integrates a full range of hardware features that help the user evaluate all the peripherals, such as a 5" RGB 800x480 pixels TFT colored LCD module with a 24‑bit RGB interface and capacitive touch panel, USB Type-C® HS, Octo‑SPI flash memory device, ARDUINO®, and STLINK-V3EC (USART console).
The STM32U5G9J-DK2 Discovery kit integrates an STLINK-V3EC embedded in-circuit debugger and programmer for the STM32 microcontroller with a USB Virtual COM port bridge and comes with the STM32CubeU5 MCU Package, which provides an STM32 comprehensive software HAL library as well as various software examples.
More information about the board can be found at the STM32U5G9J-DK2 website_.
More information about STM32U5G9ZJT6Q can be found here:
STM32U5G9ZJ on www.st.com_STM32U5 Series reference manual_STM32U5Gxxx datasheet_.. zephyr:board-supported-hw::
For more details please refer to STM32U5G9J-DK2 board User Manual_.
.. rst-class:: rst-columns
The STM32U5G9J-DK Discovery 2 kit relies on an HSE oscillator (16 MHz crystal) and an LSE oscillator (32.768 kHz crystal) as clock references. Using the HSE (instead of HSI) is mandatory to manage the DSI interface for the LCD module and the USB high‑speed interface.
The STM32U5G9J Discovery 2 kit has up to 4 USARTs, 2 UARTs, and 1 LPUART. The Zephyr console output is assigned to USART1 which connected to the onboard ST-LINK/V3.0. Virtual COM port interface. Default communication settings are 115200 8N1.
Programming and Debugging
.. zephyr:board-supported-runners::
STM32U5G9J Discovery 2 kit includes an ST-LINK/V3 embedded debug tool interface. This probe allows to flash and debug the board using various tools.
The board is configured to be flashed using west STM32CubeProgrammer_ runner,
so its :ref:installation <stm32cubeprog-flash-host-tools> is required.
Alternatively, OpenOCD can also be used to flash the board using
the --runner (or -r) option:
.. code-block:: console
$ west flash --runner openocd
Connect the STM32U5G9J Discovery 2 board to your host computer using the USB port, then run a serial host program to connect with your Discovery board. For example:
.. code-block:: console
$ minicom -D /dev/ttyACM0 -b 115200
Then, build and flash 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: stm32u5g9j_dk2 :goals: build flash
You should see the following message on the console:
.. code-block:: console
Hello World! stm32u5g9j_dk2
Default debugger for this board is openocd. It could be used in the usual way
with "west debug" command.
Here is an example for the :zephyr:code-sample:blinky application.
.. zephyr-app-commands:: :zephyr-app: samples/basic/blinky :board: stm32u5g9j_dk2 :goals: debug
.. _STM32U5G9J-DK2 website: https://www.st.com/en/evaluation-tools/stm32u5g9j-dk2.html
.. _STM32U5G9J-DK2 board User Manual: https://www.st.com/resource/en/user_manual/um3223-discovery-kit-with-stm32u5g9zj-mcu-stmicroelectronics.pdf
.. _STM32U5G9ZJ on www.st.com: https://www.st.com/en/microcontrollers-microprocessors/stm32u5g9zj.html
.. _STM32U5 Series reference manual: https://www.st.com/resource/en/reference_manual/rm0456-stm32u5-series-armbased-32bit-mcus-stmicroelectronics.pdf
.. _STM32U5Gxxx datasheet: https://www.st.com/resource/en/datasheet/stm32u5g7vj.pdf
.. _STM32CubeProgrammer: https://www.st.com/en/development-tools/stm32cubeprog.html
.. _STM32U5G9J_DK2 board schematics: https://www.st.com/resource/en/schematic_pack/mb1918-u5g9zjq-c01-schematic.pdf