| .. _stm32f746g_disco_board: |
| |
| ST STM32F746G Discovery |
| ####################### |
| |
| Overview |
| ******** |
| |
| The discovery kit enables a wide diversity of applications taking benefit |
| from audio, multi-sensor support, graphics, security, security, video, |
| and high-speed connectivity features. Important board features include: |
| |
| - STM32F746NGH6 microcontroller featuring 1 Mbytes of Flash memory and 340 Kbytes of RAM, in BGA216 package |
| - On-board ST-LINK/V2-1 supporting USB re-enumeration capability |
| - Five power supply options: |
| |
| - ST LINK/V2-1 |
| - USB FS connector |
| - USB HS connector |
| - VIN from Arduino connector |
| - External 5 V from connector |
| |
| - Two pushbuttons (user and reset) |
| - USB functions: virtual COM port, mass storage, debug port |
| - 4.3-inch 480x272 color LCD-TFT with capacitive touch screen |
| - SAI audio codec |
| - Audio line in and line out jack |
| - Stereo speaker outputs |
| - Two ST MEMS microphones |
| - SPDIF RCA input connector |
| - 128-Mbit Quad-SPI Flash memory |
| - 128-Mbit SDRAM (64 Mbits accessible) |
| - Connector for microSD card |
| - USB OTG HS with Micro-AB connectors |
| - USB OTG FS with Micro-AB connectors |
| - Ethernet connector compliant with IEEE-802.3-2002 |
| |
| .. image:: img/stm32f746g_disco.jpg |
| :align: center |
| :alt: STM32F746G-DISCO |
| |
| More information about the board can be found at the `32F746G-DISCO website`_. |
| |
| Hardware |
| ******** |
| |
| The STM32F746G Discovery kit provides the following hardware components: |
| |
| - STM32F746NGH6 in BGA216 package |
| - ARM |reg| 32-bit Cortex |reg| -M7 CPU with FPU |
| - 216 MHz max CPU frequency |
| - VDD from 1.8 V to 3.6 V |
| - 2 MB Flash |
| - 384+4 KB SRAM including 64-Kbyte of core coupled memory |
| - GPIO with external interrupt capability |
| - LCD parallel interface, 8080/6800 modes |
| - LCD TFT controller supporting up to XGA resolution |
| - MIPI |reg| DSI host controller supporting up to 720p 30Hz resolution |
| - 3x12-bit ADC with 24 channels |
| - 2x12-bit D/A converters |
| - RTC |
| - Advanced-control Timer |
| - General Purpose Timers (17) |
| - Watchdog Timers (2) |
| - USART/UART (8) |
| - I2C (3) |
| - SPI (6) |
| - 1xSAI (serial audio interface) |
| - SDIO |
| - 2xCAN |
| - USB 2.0 OTG FS with on-chip PHY |
| - USB 2.0 OTG HS/FS with dedicated DMA, on-chip full-speed PHY and ULPI |
| - 10/100 Ethernet MAC with dedicated DMA |
| - 8- to 14-bit parallel camera |
| - CRC calculation unit |
| - True random number generator |
| - DMA Controller |
| |
| More information about STM32F746NGH6 can be found here: |
| |
| - `STM32F746NGH6 on www.st.com`_ |
| - `STM32F74xxx reference manual`_ |
| |
| Supported Features |
| ================== |
| |
| The Zephyr stm32f746g_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 | |
| +-----------+------------+-------------------------------------+ |
| | PWM | on-chip | pwm | |
| +-----------+------------+-------------------------------------+ |
| | I2C | on-chip | i2c | |
| +-----------+------------+-------------------------------------+ |
| | USB | on-chip | usb | |
| +-----------+------------+-------------------------------------+ |
| | SDMMC | on-chip | disk access | |
| +-----------+------------+-------------------------------------+ |
| | SPI | on-chip | spi | |
| +-----------+------------+-------------------------------------+ |
| | QSPI NOR | on-chip | off-chip flash | |
| +-----------+------------+-------------------------------------+ |
| | FMC | on-chip | memc (SDRAM) | |
| +-----------+------------+-------------------------------------+ |
| | LTDC | on-chip | display | |
| +-----------+------------+-------------------------------------+ |
| |
| Other hardware features are not yet supported on Zephyr porting. |
| |
| The default configuration can be found in |
| :zephyr_file:`boards/st/stm32f746g_disco/stm32f746g_disco_defconfig` |
| |
| Pin Mapping |
| =========== |
| |
| STM32F746G Discovery kit has 9 GPIO controllers. These controllers are responsible for pin muxing, |
| input/output, pull-up, etc. |
| |
| For more details please refer to `32F746G-DISCO board User Manual`_. |
| |
| Default Zephyr Peripheral Mapping: |
| ---------------------------------- |
| |
| The STM32F746G Discovery kit features an Arduino Uno V3 connector. Board is |
| configured as follows |
| |
| - UART_1 TX/RX : PA9/PB7 (ST-Link Virtual Port Com) |
| - UART_6 TX/RX : PC6/PC7 (Arduino Serial) |
| - I2C1 SCL/SDA : PB8/PB9 (Arduino I2C) |
| - SDMMC_1 D0/D1/D2/D3/CK/CD/CMD: PC8/PC9/PC10/PC11/PC12/PC13/PD2 |
| - SPI2 NSS/SCK/MISO/MOSI : PA8/PI1/PB14/PB15 (Arduino SPI) |
| - PWM_3_CH1 : PB4 |
| - ETH : PA1, PA2, PA7, PC1, PC4, PC5, PG11, PG13, PG14 |
| - USER_PB : PI11 |
| - LD1 : PI1 |
| - USB DM : PA11 |
| - USB DP : PA12 |
| - FMC SDRAM : |
| |
| - D0-D15 : PD14/PD15/PD0/PD1/PE7/PE8/PE9/PE10/PE11/PE12/PE13/PE14/PE15/PD8/PD9/PD10 |
| - A0-A11 : PF0/PF1/PF2/PF3/PF4/PF5/PF12/PF13/PF14/PF15/PG0/PG1 |
| - A14/A15 : PG4/PG5 |
| - SDNRAS/SDNCAS : PF11/PG15 |
| - NBL0/NBL1 : PE0/PE1 |
| - SDCLK/SDNWE/SDCKE0/SDNE0 : PG8/PH5/PC3/PH3 |
| |
| - LTDC : |
| |
| - R0-R7 : PI15/PJ0/PJ1/PJ2/PJ3/PJ4/PJ5/PJ6 |
| - G0-G7 : PJ7/PJ8/PJ9/PJ10/PJ11/PK0/PK1/PK2 |
| - B0-B7 : PJ12/PK13/PJ14/PJ15/PK3/PK4/PK5/PK6 |
| - DE/CLK/HSYNC/VSYNC : PK7/PI14/PI12/PI13 |
| |
| |
| System Clock |
| ============ |
| |
| The STM32F746G 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 216MHz, driven by a 25MHz high speed external clock. |
| |
| Serial Port |
| =========== |
| |
| The STM32F746G Discovery kit has up to 8 UARTs. The Zephyr console output is assigned to UART1 |
| which connected to the onboard ST-LINK/V2 Virtual COM port interface. Default communication |
| settings are 115200 8N1. |
| |
| Programming and Debugging |
| ************************* |
| |
| STM32F746G Discovery kit includes an ST-LINK/V2 embedded debug tool interface. |
| |
| Applications for the ``stm32f746g_disco`` board configuration can be built and |
| flashed in the usual way (see :ref:`build_an_application` and |
| :ref:`application_run` for more details). |
| |
| 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 |
| |
| Flashing an application to STM32F746G |
| ------------------------------------------- |
| |
| First, connect the STM32F746G Discovery kit to your host computer using |
| the USB port to prepare it for flashing. Then build and flash your application. |
| |
| Here is an example for the :ref:`hello_world` application. |
| |
| .. zephyr-app-commands:: |
| :zephyr-app: samples/hello_world |
| :board: stm32f746g_disco |
| :goals: build flash |
| |
| Run a serial host program to connect with your board: |
| |
| .. code-block:: console |
| |
| $ minicom -D /dev/ttyACM0 |
| |
| You should see the following message on the console: |
| |
| .. code-block:: console |
| |
| Hello World! arm |
| |
| Debugging |
| ========= |
| |
| You can debug an application in the usual way. Here is an example for the |
| :ref:`hello_world` application. |
| |
| .. zephyr-app-commands:: |
| :zephyr-app: samples/hello_world |
| :board: stm32f746g_disco |
| :goals: debug |
| |
| |
| .. _32F746G-DISCO website: |
| https://www.st.com/en/evaluation-tools/32f746gdiscovery.html |
| |
| .. _32F746G-DISCO board User Manual: |
| https://www.st.com/resource/en/user_manual/dm00190424.pdf |
| |
| .. _STM32F746NGH6 on www.st.com: |
| https://www.st.com/content/st_com/en/products/microcontrollers/stm32-32-bit-arm-cortex-mcus/stm32-high-performance-mcus/stm32f7-series/stm32f7x6/stm32f746ng.html |
| |
| .. _STM32F74xxx reference manual: |
| https://www.st.com/resource/en/reference_manual/dm00124865.pdf |
| |
| .. _STM32CubeProgrammer: |
| https://www.st.com/en/development-tools/stm32cubeprog.html |