Support for the STM32 Nucleo-G031K8 board. More...
Detailed Description
Support for the STM32 Nucleo-G031K8 board.
General information
The Nucleo-G031K8 is a board from ST's Nucleo family supporting ARM Cortex-M0+ STM32G031K8 microcontroller with 8KiB of RAM and 64KiB of Flash.
You can find general information about the Nucleo32 boards on the STM32 Nucleo-32 page.
Pinout
MCU
| MCU | STM32G031K8 |
|---|---|
| Family | ARM Cortex-M0+ |
| Vendor | ST Microelectronics |
| RAM | 8KiB |
| Flash | 64KiB |
| Frequency | up to 64MHz |
| FPU | no |
| Timers | 11 (7x 16-bit, 1x 32-bit, 2x Watchdog, 1x Systick) |
| ADC | 1x 12-bit (16 channels) |
| UARTs | 3 (two USART) |
| SPIs | 2 |
| CANs | 0 |
| RTC | 1 |
| I2Cs | 2 |
| Vcc | 1.7V - 3.6V |
| Datasheet | Datasheet |
| Reference Manual | Reference Manual |
| Programming Manual | Programming Manual |
| Board Manual | Board Manual |
Flashing the board
A detailed description about the flashing process can be found on the guides page. The board name for the Nucleo-G031K8 is nucleo-g031k8.
Reset configuration
Some boards ship with the NRST_MODE option byte set to 2 (the documented default is 3), which turns the NRST pin into the PF2 GPIO and disables its reset function, so the reset button, the NRST pin and the ST-Link reset no longer reset the MCU. RIOT works around this by resetting over SWD (reset_config none), so make flash always works.
To restore the hardware reset, set NRST_MODE to 1 or 3. The easiest way to do this is to use STM32CubeProgrammer, which is available for Linux, Mac (x86 and ARM) and Windows on the ST website.
- Note
- STM32CubeProgrammer v2.22 from February 2026 has a bug that prevents writing the Option Bytes. Use an older or newer version instead!
Alternatively, you can write a program that sets the FLASH_OPTR register. For more information, please refer to the STM32G0x1 Reference Manual linked in the table above.
Files | |
| file | periph_conf.h |
| Configuration of CPU peripherals for STM32 Nucleo-G031K8 board. | |
