board-st-nucleo-c031c6 - Wokwi

A Nucleo-64 development board with STM32C031C6 MCU: ARM Cortex-M0+ processor, 32 KB Flash, 12 KB RAM running at 48 MHz.

Onboard LED

The Nucleo-C031C6 has an onboard user LED (LD4), attached to GPIO pin PA5 (D13). The LED is lit when the pin is driven high. You can also use the LED_BUILTIN constant to reference the LED in your Arduino code:

pinMode(LED_BUILTIN, OUTPUT);
digitalWrite(LED_BUILTIN, HIGH);

See Blink for a complete code example.

Simulation features

This table summarizes the current status of the STM32C031C6 MCU simulation features:

Feature	Status	Notes
Processor core	✔️	Cortex M0+ core
SysTick timer	✔️
GPIO	✔️
USART	✔️
I2C	✔️	Master mode only
SPI	✔️	Master mode only
ADC	✔️	Used by analogRead()
STM32 timers	✔️	TIM1/3/14/16/17, used by analogWrite()
CRC	✔️	32, 16, and 8 bits (7 bits not supported)
DBG	❌
DMA	❌
EXTI	✔️
IWDG	❌
PWR	❌
RCC	🟡
RTC	❌
SYSCFG	❌
WWDG	🟡	Implemented, not tested yet
GDB Debugging	✔️	See the GDB Debugging guide

Legend:
✔️ Simulated
🟡 Partial implementation/work in progress
❌ Not implemented

Simulator examples