Nucleo F042K6

Overview

The STM32 Nucleo-32 development board with STM32F042K6 MCU, supports Arduino nano connectivity.

The STM32 Nucleo board provides an affordable, and flexible way for users to try out new concepts, and build prototypes with the STM32 microcontroller, choosing from the various combinations of performance, power consumption and features.

The STM32 Nucleo board integrates the ST-LINK/V2-1 debugger and programmer.

The STM32 Nucleo board comes with the STM32 comprehensive software HAL library together with various packaged software examples.

More information about the board can be found at the Nucleo F042K6 website [1].

Hardware

Nucleo F042K6 provides the following hardware components:

  • STM32 microcontroller in LQFP32 package

  • On-board ST-LINK/V2-1 debugger/programmer with SWD connector:

  • Flexible board power supply:

    • USB VBUS or external source (3.3V, 5V, 7 - 12V)

  • Three LEDs:

    • USB communication (LD1), user LED (LD2), power LED (LD3)

  • reset push button

More information about STM32F042K6 can be found here:

Supported Features

The nucleo_f042k6 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.
nucleo_f042k6
/
stm32f042x6

Type

Location

Description

Compatible

CPU

on-chip

ARM Cortex-M0 CPU1

arm,cortex-m0

ADC

on-chip

STM32 ADC1

st,stm32-adc

CAN

on-chip

STM32 CAN controller1

st,stm32-bxcan

Clock control

on-chip

STM32F0/G0 RCC (Reset and Clock controller)1

st,stm32f0-rcc

on-chip

STM32 HSE Clock1

st,stm32-hse-clock

on-chip

Generic fixed-rate clock provider2 2

fixed-clock

on-chip

STM32 LSE Clock1

st,stm32-lse-clock

on-chip

STM32F0/F3 Main PLL1

st,stm32f0-pll-clock

Counter

on-chip

STM32 counters5

st,stm32-counter

DMA

on-chip

STM32 DMA controller (V2bis) for the stm32F0, stm32F1 and stm32L1 soc families1

st,stm32-dma-v2bis

Flash controller

on-chip

STM32 Family flash controller1

st,stm32-flash-controller

GPIO & Headers

on-chip

STM32 GPIO Controller5

st,stm32-gpio

I2C

on-chip

STM32 I2C V2 controller1

st,stm32-i2c-v2

Interrupt controller

on-chip

ARMv6-M NVIC (Nested Vectored Interrupt Controller) controller1

arm,v6m-nvic

on-chip

STM32 External Interrupt Controller1

st,stm32-exti

LED

on-board

Group of GPIO-controlled LEDs1

gpio-leds

on-board

Group of PWM-controlled LEDs1

pwm-leds

Memory controller

on-chip

STM32 Battery Backed RAM1

st,stm32-bbram

MTD

on-chip

STM32 flash memory1

st,stm32-nv-flash

PHY

on-chip

This binding is to be used by all the usb transceivers which are built-in with USB IP1

usb-nop-xceiv

Pin control

on-chip

STM32 Pin controller1

st,stm32-pinctrl

PWM

on-chip

STM32 PWM1 6

st,stm32-pwm

Reset controller

on-chip

STM32 Reset and Clock Control (RCC) Controller1

st,stm32-rcc-rctl

RTC

on-chip

STM32 RTC1

st,stm32-rtc

Sensors

on-chip

STM32 VREF+1

st,stm32-vref

on-chip

STM32 family TEMP node for production calibrated sensors with two calibration temperatures1

st,stm32-temp-cal

on-chip

STM32 VBAT1

st,stm32-vbat

Serial controller

on-chip

STM32 USART1 1

st,stm32-usart

SMbus

on-chip

STM32 SMBus controller1

st,stm32-smbus

SPI

on-chip

STM32 SPI controller with embedded Rx and Tx FIFOs1 1

st,stm32-spi-fifo

SRAM

on-chip

Generic on-chip SRAM description1

mmio-sram

Timer

on-chip

ARMv6-M System Tick1

arm,armv6m-systick

on-chip

STM32 timers1 6

st,stm32-timers

USB

on-chip

STM32 USB controller1

st,stm32-usb

Watchdog

on-chip

STM32 watchdog1

st,stm32-watchdog

on-chip

STM32 system window watchdog1

st,stm32-window-watchdog

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.

Board connectors:

Nucleo F042K6 connectors

Default Zephyr Peripheral Mapping:

  • UART_1 TX/RX : PA2/PA15 (ST-Link Virtual COM Port)

  • I2C1 SCL/SDA : PB6/PB7 (Arduino I2C)

  • SPI1 NSS/SCK/MISO/MOSI : PA4/PA5/PA6/PA7 (Arduino SPI)

  • LD2 : PB3

For more details please refer to STM32 Nucleo-32 board User Manual [4].

Programming and Debugging

Nucleo F042K6 board includes an ST-LINK/V2-1 embedded debug tool interface.

Applications for the nucleo_f042k6 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 [5] 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 F042K6

Here is an example for the Blinky application.

# From the root of the zephyr repository
west build -b nucleo_f042k6 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 nucleo_f042k6 samples/basic/blinky
west debug

References