| .. zephyr:board:: stm32f412g_disco |
| |
| Overview |
| ******** |
| |
| The STM32F412 Discovery kit features an ARM Cortex-M4 based STM32F412ZG MCU |
| with a wide range of connectivity support and configurations Here are |
| some highlights of the STM32F412G-DISCO board: |
| |
| |
| - STM32F412ZGT6 microcontroller featuring 1 Mbyte of Flash memory and 256 Kbytes of RAM in an LQFP144 package |
| - On-board ST-LINK/V2-1 SWD debugger supporting USB re-enumeration capability: |
| |
| - USB virtual COM port |
| - mass storage |
| - debug port |
| |
| - 1.54 inch 240x240 pixel TFT color LCD with parallel interface and capacitive touchscreen |
| - I2S Audio CODEC, with a stereo headset jack, including analog microphone input and a loudspeaker output |
| - Stereo digital MEMS microphones |
| - MicroSD card connector extension |
| - I2C extension connector |
| - 128 Mbit Quad-SPI Nor Flash |
| - Reset button and Joystick |
| - Four color user LEDs. |
| - USB OTG FS with Micro-AB connector |
| - Four power supply options: |
| |
| - ST-LINK/V2-1 USB connector |
| - User USB FS connector |
| - VIN from Arduino* connectors |
| - + 5 V from Arduino* connectors |
| |
| - Two power supplies for MCU: 2.0 V and 3.3 V |
| - Compatible with Arduino(tm) Uno revision 3 connectors |
| - Extension connector for direct access to various features of STM32F412ZGT6 MCU |
| - Comprehensive free software including a variety of examples, part of STM32Cube package |
| |
| More information about the board can be found at the `32F412GDISCOVERY website`_. |
| |
| Hardware |
| ******** |
| |
| STM32F469I-DISCO Discovery kit provides the following hardware components: |
| |
| - STM32F412ZGT6 in LQFP144 package |
| - ARM |reg| 32-bit Cortex |reg| -M4 CPU with FPU |
| - 100 MHz max CPU frequency |
| - VDD from 1.7 V to 3.6 V |
| - 1 MB Flash |
| - 256 KB SRAM |
| - GPIO with external interrupt capability |
| - LCD parallel interface, 8080/6800 modes |
| - 1x12-bit ADC with 16 channels |
| - RTC |
| - Advanced-control Timer |
| - General Purpose Timers (12) |
| - Watchdog Timers (2) |
| - USART/UART (4) |
| - I2C (4) |
| - SPI (5) |
| - SDIO |
| - 2xCAN |
| - CRC calculation unit |
| - True random number generator |
| - DMA Controller |
| |
| More information about STM32F412ZG can be found here: |
| - `STM32F412ZG on www.st.com`_ |
| - `STM32F412 reference manual`_ |
| |
| Supported Features |
| ================== |
| |
| The Zephyr stm32f412g_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 | |
| +-----------+------------+-------------------------------------+ |
| | I2C | on-chip | i2c | |
| +-----------+------------+-------------------------------------+ |
| | SPI | on-chip | spi | |
| +-----------+------------+-------------------------------------+ |
| | QSPI NOR | on-chip | off-chip flash | |
| +-----------+------------+-------------------------------------+ |
| |
| Other hardware features are not yet supported on Zephyr porting. |
| |
| The default configuration can be found in |
| :zephyr_file:`boards/st/stm32f412g_disco/stm32f412g_disco_defconfig` |
| |
| |
| Pin Mapping |
| =========== |
| |
| STM32F412G-DISCO Discovery kit has 8 GPIO controllers. These controllers are responsible for pin muxing, |
| input/output, pull-up, etc. |
| |
| For more details please refer to `32F412GDISCOVERY board User Manual`_. |
| |
| Default Zephyr Peripheral Mapping: |
| ---------------------------------- |
| - UART_2_TX : PA2 |
| - UART_2_RX : PA3 |
| - LD1 : PE0 |
| - LD2 : PE1 |
| - LD3 : PE2 |
| - LD4 : PE3 |
| |
| System Clock |
| ============ |
| |
| STM32F412G-DISCO System Clock could be driven by internal or external oscillator, |
| as well as main PLL clock. By default System clock is driven by PLL clock at 100MHz, |
| driven internal oscillator. |
| |
| Serial Port |
| =========== |
| |
| The STM32F412G Discovery kit has up to 4 UARTs. The Zephyr console output is assigned to UART2. |
| Default settings are 115200 8N1. |
| |
| |
| Programming and Debugging |
| ************************* |
| |
| STM32F412G-DISCO Discovery kit includes an ST-LINK/V2 embedded debug tool interface. |
| |
| Applications for the ``stm32f412g_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 STM32F412G-DISCO |
| ------------------------------------------- |
| |
| Connect the STM32F412G-DISCO Discovery kit to your host computer using |
| the USB port, then run a serial host program to connect with your |
| board: |
| |
| .. code-block:: console |
| |
| $ minicom -D /dev/ttyACM0 |
| |
| Then build and flash an application. Here is an example for the |
| :zephyr:code-sample:`hello_world` application. |
| |
| .. zephyr-app-commands:: |
| :zephyr-app: samples/hello_world |
| :board: stm32f412g_disco |
| :goals: build flash |
| |
| 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 |
| :zephyr:code-sample:`hello_world` application. |
| |
| .. zephyr-app-commands:: |
| :zephyr-app: samples/hello_world |
| :board: stm32f412g_disco |
| :maybe-skip-config: |
| :goals: debug |
| |
| .. _32F412GDISCOVERY website: |
| https://www.st.com/en/evaluation-tools/32f412gdiscovery.html |
| |
| .. _32F412GDISCOVERY board User Manual: |
| https://www.st.com/resource/en/user_manual/dm00275919.pdf |
| |
| .. _STM32F412ZG on www.st.com: |
| https://www.st.com/en/microcontrollers/stm32f412zg.html |
| |
| .. _STM32F412 reference manual: |
| https://www.st.com/resource/en/reference_manual/dm00180369.pdf |
| |
| .. _STM32CubeProgrammer: |
| https://www.st.com/en/development-tools/stm32cubeprog.html |