201 lines
6.0 KiB
ReStructuredText
201 lines
6.0 KiB
ReStructuredText
.. _stm32f4_disco_board:
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ST STM32F4DISCOVERY
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###################
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Overview
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********
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The STM32F4DISCOVERY Discovery kit features an ARM Cortex-M4 based STM32F407VG MCU
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with a wide range of connectivity support and configurations Here are
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some highlights of the STM32F4DISCOVERY board:
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- STM32 microcontroller in LQFP100 package
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- Extension header for all LQFP100 I/Os for quick connection to prototyping board and easy probing
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- On-board ST-LINK/V2 debugger/programmer with SWD connector
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- Flexible board power supply:
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- USB VBUS or external source(3.3V, 5V, 7 - 12V)
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- Power management access point
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- Eight LEDs:
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- USB communication (LD1)
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- 3.3 V power on (LD2)
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- Four user LEDs: orange (LD3), green (LD4), red (LD5), and blue (LD6)
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- 2 USB OTG LEDs for VBUS (LD7) and over-current (LD8)
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- Two push-buttons: USER and RESET
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- USB OTG FS with micro-AB connector
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- LIS302DL or LIS3DSH ST MEMS 3-axis accelerometer
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- MP45DT02 ST-MEMS audio sensor omni-directional digital microphone
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- CS43L22 audio DAC with integrated class D speaker driver
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.. image:: img/en.stm32f4_discovery.jpg
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:width: 350px
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:align: center
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:height: 550px
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:alt: STM32F4DISCOVERY
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More information about the board can be found at the `STM32F4DISCOVERY website`_.
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Hardware
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********
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STM32F4DISCOVERY Discovery kit provides the following hardware components:
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- STM32F407VGT6 in LQFP100 package
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- ARM |reg| 32-bit Cortex |reg| -M4 CPU with FPU
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- 168 MHz max CPU frequency
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- VDD from 1.8 V to 3.6 V
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- 1 MB Flash
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- 192+4 KB SRAM including 64-Kbyte of core coupled memory
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- GPIO with external interrupt capability
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- 3x12-bit ADC with 24 channels
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- 2x12-bit D/A converters
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- RTC
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- Advanced-control Timer
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- General Purpose Timers (17)
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- Watchdog Timers (2)
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- USART/UART (6)
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- I2C (3)
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- SPI (3)
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- SDIO
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- 2xCAN
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- USB 2.0 OTG FS with on-chip PHY
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- USB 2.0 OTG HS/FS with dedicated DMA, on-chip full-speed PHY and ULPI
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- 10/100 Ethernet MAC with dedicated DMA
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- 8- to 14-bit parallel camera
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- CRC calculation unit
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- True random number generator
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- DMA Controller
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More information about STM32F407VG can be found here:
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- `STM32F407VG on www.st.com`_
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- `STM32F407 reference manual`_
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Supported Features
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==================
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The Zephyr stm32f4_disco board configuration supports the following hardware 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-polling; |
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| | | serial port-interrupt |
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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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| PWM | on-chip | pwm |
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+-----------+------------+-------------------------------------+
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| USB | on-chip | usb |
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+-----------+------------+-------------------------------------+
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Other hardware features are not yet supported on Zephyr porting.
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The default configuration can be found in the defconfig file:
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``boards/arm/stm32f4_disco/stm32f4_disco_defconfig``
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Pin Mapping
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===========
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STM32F4DISCOVERY Discovery kit has 8 GPIO controllers. These controllers are responsible for pin muxing,
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input/output, pull-up, etc.
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For mode details please refer to `STM32F4DISCOVERY board User Manual`_.
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Default Zephyr Peripheral Mapping:
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----------------------------------
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- UART_1_TX : PB6
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- UART_1_RX : PB7
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- UART_2_TX : PA2
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- UART_2_RX : PA3
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- USER_PB : PA0
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- LD3 : PD13
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- LD4 : PD12
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- LD5 : PD14
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- LD6 : PD15
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- USB DM : PA11
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- USB DP : PA12
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System Clock
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============
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STM32F4DISCOVERY System Clock could be driven by internal or external oscillator,
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as well as main PLL clock. By default System clock is driven by PLL clock at 168MHz,
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driven by 8MHz high speed external clock.
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Serial Port
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===========
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STM32F4DISCOVERY Discovery kit has up to 6 UARTs. The Zephyr console output is assigned to UART2.
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Default settings are 115200 8N1.
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Please note that ST-Link Virtual Com Port is not wired to chip serial port. In order to
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enable console output you should use a serial cable and connect it to UART2 pins (PA2/PA3).
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Programming and Debugging
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*************************
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Applications for the ``stm32f4_disco`` 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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STM32F4DISCOVERY Discovery kit includes an ST-LINK/V2 embedded debug tool interface.
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This interface is supported by the openocd version included in Zephyr SDK.
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Flashing an application to STM32F4DISCOVERY
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-------------------------------------------
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Here is an example for the :ref:`blinky-sample` application.
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Run a serial host program to connect with your board:
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.. code-block:: console
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$ minicom -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/basic/blinky
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:board: stm32f4_disco
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:goals: build flash
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You should see user led "LD4" blinking.
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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: stm32f4_disco
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:maybe-skip-config:
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:goals: debug
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.. _STM32F4DISCOVERY website:
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http://www.st.com/en/evaluation-tools/stm32f4discovery.html
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.. _STM32F4DISCOVERY board User Manual:
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http://www.st.com/resource/en/user_manual/dm00039084.pdf
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.. _STM32F407VG on www.st.com:
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http://www.st.com/en/microcontrollers/stm32f407vg.html
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.. _STM32F407 reference manual:
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http://www.st.com/resource/en/reference_manual/dm00031020.pdf
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