| .. zephyr:board:: stm32h735g_disco |
| |
| Overview |
| ******** |
| |
| The STM32H735G-DK Discovery kit is a complete demonstration and development |
| platform for Arm® Cortex®-M7 core-based STM32H735IGK6U microcontroller, with |
| 1 Mbyte of Flash memory and 564 Kbytes of SRAM. |
| |
| The STM32H735G-DK Discovery kit is used as a reference design for user |
| application development before porting to the final product, thus simplifying |
| the application development. |
| |
| The full range of hardware features available on the board helps users to enhance |
| their application development by an evaluation of all the peripherals (such as |
| USB OTG FS, Ethernet, microSD™ card, USART, CAN FD, SAI audio DAC stereo with |
| audio jack input and output, MEMS digital microphone, HyperRAM™, |
| Octo-SPI Flash memory, RGB interface LCD with capacitive touch panel, and others). |
| ARDUINO® Uno V3, Pmod™ and STMod+ connectors provide easy connection to extension |
| shields or daughterboards for specific applications. |
| |
| STLINK-V3E is integrated into the board, as the embedded in-circuit debugger and |
| programmer for the STM32 MCU and USB Virtual COM port bridge. STM32H735G-DK board |
| comes with the STM32CubeH7 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 `STM32H735G-DISCO website`_. |
| More information about STM32H735 can be found here: |
| |
| - `STM32H725/735 on www.st.com`_ |
| - `STM32H735xx reference manual`_ |
| - `STM32H735xx datasheet`_ |
| |
| Supported Features |
| ================== |
| |
| The current Zephyr stm32h735g_disco board configuration supports the following hardware features: |
| |
| +-----------+------------+-------------------------------------+ |
| | Interface | Controller | Driver/Component | |
| +===========+============+=====================================+ |
| | NVIC | on-chip | nested vector interrupt controller | |
| +-----------+------------+-------------------------------------+ |
| | UART | on-chip | serial port-polling; | |
| | | | serial port-interrupt | |
| +-----------+------------+-------------------------------------+ |
| | PINMUX | on-chip | pinmux | |
| +-----------+------------+-------------------------------------+ |
| | GPIO | on-chip | gpio | |
| +-----------+------------+-------------------------------------+ |
| | FLASH | on-chip | flash memory | |
| +-----------+------------+-------------------------------------+ |
| | ETHERNET | on-chip | ethernet | |
| +-----------+------------+-------------------------------------+ |
| | RNG | on-chip | True Random number generator | |
| +-----------+------------+-------------------------------------+ |
| | FMC | on-chip | memc (SDRAM) | |
| +-----------+------------+-------------------------------------+ |
| | ADC | on-chip | ADC Controller | |
| +-----------+------------+-------------------------------------+ |
| | FDCAN1 | on-chip | CAN-FD Controller | |
| +-----------+------------+-------------------------------------+ |
| | FDCAN2 | on-chip | CAN-FD Controller | |
| +-----------+------------+-------------------------------------+ |
| | FDCAN3 | on-chip | CAN-FD Controller (disabled by | |
| | | | default. Solder bridges SB29 and | |
| | | | SB30 need to be closed for FDCAN3 | |
| | | | to work) | |
| +-----------+------------+-------------------------------------+ |
| | USB | on-chip | usb_device | |
| +-----------+------------+-------------------------------------+ |
| |
| Other hardware features are not yet supported on Zephyr porting. |
| |
| The default configuration can be found in the defconfig file: |
| :zephyr_file:`boards/st/stm32h735g_disco/stm32h735g_disco_defconfig` |
| |
| Pin Mapping |
| =========== |
| |
| For more details please refer to `STM32H735G-DISCO website`_. |
| |
| Default Zephyr Peripheral Mapping: |
| ---------------------------------- |
| |
| - UART_3 TX/RX : PD8/PD9 (ST-Link Virtual Port Com) |
| - UART_7 TX/RX : PF7/PF6 (Arduino Serial) |
| - LD1 : PC2 |
| - LD2 : PC3 |
| - FDCAN1 : CAN |
| |
| System Clock |
| ============ |
| |
| The STM32H735G System Clock can be driven by an internal or external oscillator, |
| as well as by the main PLL clock. By default, the System clock |
| is driven by the PLL clock at 550MHz. PLL clock is feed by a 25MHz high speed external clock. |
| |
| Serial Port |
| =========== |
| |
| The STM32H735G Discovery kit has up to 6 UARTs. |
| The Zephyr console output is assigned to UART3 which connected to the onboard ST-LINK/V3.0. Virtual |
| COM port interface. Default communication settings are 115200 8N1. |
| |
| |
| Programming and Debugging |
| ************************* |
| |
| STM32H735G-DISCO board includes an ST-LINK/V3 embedded debug tool interface. |
| |
| See :ref:`build_an_application` for more information about application builds. |
| |
| |
| Flashing |
| ======== |
| |
| The board is configured to be flashed using west `STM32CubeProgrammer`_ runner, |
| so its :ref:`installation <stm32cubeprog-flash-host-tools>` is required. |
| |
| Alternatively, OpenOCD or JLink can also be used to flash the board using |
| the ``--runner`` (or ``-r``) option: |
| |
| .. code-block:: console |
| |
| $ west flash --runner openocd |
| $ west flash --runner jlink |
| |
| It is advised to use `STM32CubeProgrammer`_ to check and update option bytes |
| configuration. |
| |
| Debugging |
| ========= |
| |
| You can debug an application 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: stm32h735g_disco |
| :goals: debug |
| |
| |
| .. _STM32H735G-DISCO website: |
| https://www.st.com/en/evaluation-tools/stm32h735g-dk.html |
| |
| .. _STM32H725/735 on www.st.com: |
| https://www.st.com/en/microcontrollers-microprocessors/stm32h725-735.html |
| |
| .. _STM32H735xx reference manual: |
| https://www.st.com/resource/en/reference_manual/dm00603761-stm32h723733-stm32h725735-and-stm32h730-value-line-advanced-armbased-32bit-mcus-stmicroelectronics.pdf |
| |
| .. _STM32H735xx datasheet: |
| https://www.st.com/resource/en/datasheet/stm32h735ag.pdf |
| |
| .. _STM32CubeProgrammer: |
| https://www.st.com/en/development-tools/stm32cubeprog.html |