STM32F0 Discovery

Overview

The STM32F0 Discovery development board uses an STM32F051R8T6 MCU and integrates the ST-LINK/V2-1 debugger and programmer. It also comes with a comprehensive STM32 software HAL library and various packaged software examples.

More information about the board can be found at the STM32F0DISCOVERY website [1].

Hardware

The STM32 Discovery board features:

  • STM32F051R8T6 microcontroller featuring 64 KB Flash memory, 8 KB RAM in an LQFP64 package

  • On-board ST-LINK/V2 with selection mode switch to use the kit as a standalone ST-LINK/V2 (with SWD connector for programming and debugging)

  • Board power supply: through USB bus or from an external 5 V supply voltage

  • External application power supply: 3 V and 5 V

  • Four LEDs:

    • LD1 (red) for 3.3 V power on

    • LD2 (red/green) for USB communication

    • LD3 (green) for PC9 output

    • LD4 (blue) for PC8 output

  • Two push buttons (user and reset)

  • Extension header for all LQFP64 I/Os for quick connection to prototyping board and easy probing

  • An additional board is provided which can be connected to the extension connector for even easier prototyping and probing.

  • Comprehensive free software including a variety of examples, part of STM32CubeF0 package or STSW-STM32049 for legacy Standard Libraries usage

More information about STM32F051R8 can be found in the STM32F0x8 reference manual [2].

Supported Features

The stm32f0_disco board supports the hardware features listed below.

on-chip / on-board
Feature integrated in the SoC / present on the board.
2 / 2
Number of instances that are enabled / disabled.
Click on the label to see the first instance of this feature in the board/SoC DTS files.
vnd,foo
Compatible string for the Devicetree binding matching the feature.
Click on the link to view the binding documentation.

Connections and IOs

Each of the GPIO pins can be configured by software as output (push-pull or open-drain), as input (with or without pull-up or pull-down), or as peripheral alternate function. Most of the GPIO pins are shared with digital or analog alternate functions. All GPIOs are high current capable except for analog inputs.

Default Zephyr Peripheral Mapping:

  • UART_1_TX : PA9

  • UART_1_RX : PA10

  • UART_2_TX : PA2

  • UART_2_RX : PA3

For more details please refer to STM32F0DISCOVERY board User Manual [3].

Programming and Debugging

The stm32f0_disco board supports the runners and associated west commands listed below.

flash debug

STM32F0DISCOVERY board includes an ST-LINK/V2-1 embedded debug tool interface.

Applications for the stm32f0_disco board configuration can be built and flashed in the usual way (see Building an Application and Run an Application for more details).

Flashing

The board is configured to be flashed using west STM32CubeProgrammer [4] runner, so its installation is required.

Alternatively, OpenOCD or JLink can also be used to flash the board using the --runner (or -r) option:

$ west flash --runner openocd
$ west flash --runner jlink

Flashing an application to Nucleo F030R8

Here is an example for the Blinky application.

# From the root of the zephyr repository
west build -b stm32f0_disco samples/basic/blinky
west flash

You will see the LED blinking every second.

Debugging

You can debug an application in the usual way. Here is an example for the Blinky application.

# From the root of the zephyr repository
west build -b stm32f0_disco samples/basic/blinky
west debug

References