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Overview

boards/iar/stm32f429ii_aca/doc/index.rst

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.. zephyr:board:: stm32f429ii_aca

Overview

The IAR STM32F429II-ACA evaluation board features an ARM Cortex-M4 based STM32F429II MCU. Here are some highlights of the STM32F429II-ACA board:

  • STM32 microcontroller in LQFP176 package

  • JTAG/SWD debugger/programmer interface

  • Flexible board power supply

    • JTAG/SWD connector
    • USB HS connector

  • 3x user push-buttons and 1x RESET push-button

  • Open-close switch and on-auto-off switch

  • 2x capacitive touch panels

  • USB OTG with mini-USB connector

  • Small speaker

  • Trimmer potentiometer

  • Nine LEDs

    • 1x power LED
    • 3x car traffic light LEDs
    • 2x pedestrian traffic light LEDs
    • 1x car interior light LED
    • 2x user LEDs

Schematics for the board can be found here <stm32f429ii-aca-schematics_>_

Hardware

The STM32F429II-ACA evaluation board provides the following hardware components:

  • STM32F429II in LQFP176 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 Internal Flash
  • 4 Mbit External Flash
  • 256+4 KB SRAM including 64-KB of core coupled memory
  • GPIO with external interrupt capability
  • 12-bit ADC
  • 12-bit DAC
  • RTC
  • General Purpose Timers
  • I2C
  • SPI
  • USB 2.0 OTG HS/FS with dedicated DMA, on-chip full-speed PHY and ULPI
  • CRC calculation unit
  • True random number generator
  • DMA Controller

More information about STM32F429II can be found here:

  • STM32F429II on www.st.com_
  • STM32F429 Reference Manual_

Supported Features

.. zephyr:board-supported-hw::

Default Zephyr Peripheral Mapping:

  • I2C_1_SCL : PB8
  • I2C_1_SDA : PB7
  • I2C_2_SCL : PH4
  • I2C_2_SDA : PH5
  • SPI_5_NSS : 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

Serial Port

The stm32f429ii_aca board has no physical serial port available. The board has up to 8 UARTs, of which none are used.

USB Port

The stm32f429ii_aca board has a USB HS capable Mini-USB port. It is connected to the on-chip OTG_HS peripheral.

Programming and Debugging

The stm32f429ii_aca board supports the runners and associated west commands listed below.

.. zephyr:board-supported-runners::

Applications for the stm32f429ii_aca 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 IAR STM32F429II-ACA board has a MIPI20 connector to an JTAG/SWD interface that can be used to program the MCU and then debug the application. This interface can be used with an external debug probe such as a Segger J-Link.

In preparation for flashing, connect the stm32f429ii_aca board's MIPI20 DEBUG/TRACE interface to your external debug probe and then connect the debug probe to your host computer.

Here is an example for the :zephyr:code-sample:blinky application.

.. zephyr-app-commands:: :zephyr-app: samples/basic/blinky :board: stm32f429ii_aca :goals: build flash

LED1 should then begin to blink continuously with a 1-second delay.

By default, the board uses the jlink runner for flashing operations. Alternative runners for openocd or pyocd are also available and they are accessible through the --runner (or -r) option:

.. code-block:: console

$ west flash --runner openocd $ west flash --runner pyocd

References

.. target-notes::

.. _stm32f429ii-aca-schematics: https://mypages.iar.com/s/article/Schematics-for-IAR-Academy-STM32F429II-ACA-evaluation-board

.. _STM32F429II on www.st.com: https://www.st.com/en/microcontrollers-microprocessors/stm32f429ii.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