.. zephyr:board:: stm32f429i_disc1

Overview

The STM32F429I-DISC1 Discovery kit features an ARM Cortex-M4 based STM32F429ZI MCU with a wide range of connectivity support and configurations. Here are some highlights of the STM32F429I-DISC1 board:

STM32 microcontroller in LQFP144 package
Extension header for all LQFP144 I/Os for quick connection to prototyping board and easy probing
On-board ST-LINK/V2-B debugger/programmer with SWD connector
Flexible board power supply:
- ST-LINK/V2-1 USB connector
- User USB FS connector
- VIN from Arduino* compatible connectors
Two push-buttons: USER and RESET
USB OTG FS with micro-AB connector
2.4-inch QVGA LCD with MIPI DSI interface and capacitive touch screen
64Mbit SDRAM
L3GD20, ST-MEMS motion sensor 3-axis digital output gyroscope
Six LEDs
- LD1 (red/green) for USB communication
- LD2 (red) for 3.3 V power-on
- Two user LEDs: LD3 (green), LD4 (red)
- Two USB OTG LEDs: LD5 (green) VBUS and LD6 (red) OC (over-current)

More information about the board can be found at the STM32F429I-DISC1 website_.

Hardware

The STM32F429I-DISC1 Discovery kit provides the following hardware components:

STM32F429ZIT6 in LQFP144 package
ARM® 32-bit Cortex®-M4 CPU with FPU
180 MHz max CPU frequency
VDD from 1.8 V to 3.6 V
2 MB Flash
256+4 KB SRAM including 64-Kbyte of core coupled memory
GPIO with external interrupt capability
3x12-bit ADC with 24 channels
2x12-bit D/A converters
RTC
Advanced-control Timer
General Purpose Timers (17)
Watchdog Timers (2)
USART/UART (4/4)
I2C (3)
SPI (6)
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 STM32F429ZI can be found here:

STM32F429ZI on www.st.com_
STM32F429 Reference Manual_

Supported Features

.. zephyr:board-supported-hw::

Pin Mapping

The STM32F429I-DISC1 Discovery kit has 8 GPIO controllers. These controllers are responsible for pin muxing, input/output, pull-up, etc.

For more details please refer to STM32F429I-DISC1 board User Manual_.

Default Zephyr Peripheral Mapping:

UART_1_TX : PA9
UART_1_RX : PA10
USER_PB : PA0
LD3 : PG13
LD4 : PG12
I2C_1_SCL : PB8
I2C_1_SDA : PB9
I2C_2_SCL : PB10
I2C_2_SDA : PB11
I2C_3_SCL : PA8
I2C_3_SDA : PC9
SPI_5_CS : PF6
SPI_5_SCK : PF7
SPI_5_MISO : PF8
SPI_5_MOSI : PF9
OTG_HS_ID : PB12
OTG_HS_DM : PB14
OTG_HS_DP : PB15

System Clock

The STM32F429I-DISC1 System Clock could 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 168MHz, driven by an 8MHz high speed external clock.

Serial Port

The STM32F429I-DISC1 Discovery kit has up to 8 UARTs. The Zephyr console output is assigned to UART1. The default communication settings are 115200 8N1.

USB Port

The STM32F429I-DISC1 Discovery kit has a USB FS capable Micro-B port. It is connected to the on-chip OTG_HS peripheral, but operates in FS mode only since no HS PHY is present. The board supports device and host OTG operation, but only device mode has been tested with Zephyr at this time.

Programming and Debugging

.. zephyr:board-supported-runners::

The STM32F429I-DISC1 Discovery kit includes a ST-LINK/V2-B embedded debug tool interface. Applications for the stm32f429i_disc1 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, JLink, or pyOCD 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 $ west flash --runner pyocd

First, connect the STM32F429I-DISC1 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 :zephyr:code-sample:hello_world application.

.. zephyr-app-commands:: :zephyr-app: samples/hello_world :board: stm32f429i_disc1 :goals: build flash

Run a serial host program to connect with your board:

.. code-block:: console

$ minicom -D /dev/ttyACM0

Then, press the RESET button (The black one), you should see the following message:

.. 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: stm32f429i_disc1 :goals: debug

.. _STM32F429I-DISC1 website: https://www.st.com/en/evaluation-tools/32f429idiscovery.html

.. _STM32F429I-DISC1 board User Manual: https://www.st.com/web/en/resource/technical/document/user_manual/DM00097320.pdf

.. _STM32F429ZI on www.st.com: https://www.st.com/en/microcontrollers/stm32f429-439.html

.. _STM32F429 Reference Manual: https://www.st.com/content/ccc/resource/technical/document/reference_manual/3d/6d/5a/66/b4/99/40/d4/DM00031020.pdf/files/DM00031020.pdf/jcr:content/translations/en.DM00031020.pdf

.. _STM32CubeProgrammer: https://www.st.com/en/development-tools/stm32cubeprog.html