rSTM32F030K6 ProMini

An ST development board based on the rSTM32F030K6T6/rSTM32F030K6 (Clock: 48MHz, flash: 32Kb, Ram:4Kb) MCU (LQFP-32) compatible with STM32Duino (Arduino).

Install

Update: STCore v2.0 includes support for this MCU, if you're using STCore v2.0 you don't need to install anything.

• This requires the STM32 core for arduino, the ST original.
• I used this guide to add the board, you can check it or continue with my suggestions to install the new board.
• Copy the "DEMO_F030K6" folder to the Arduino "variants" folder, in win7 is located at: c:\Users\<USERNAME>\AppData\Local\Arduino15\packages\STM32\hardware\stm32\1.6.1\variants
• Edit the "boards.txt" file, in win7 is located at a lever up than the "variants" folder, search for the F030F4 board and add the lines to leave as I show you next:

# DEMO_F030F4 board
# Support: Serial1 (USART1 on PA3, PA2)
GenF0.menu.pnum.DEMO_F030F4=STM32F030F4 Demo board
GenF0.menu.pnum.DEMO_F030F4.upload.maximum_data_size=4096
GenF0.menu.pnum.DEMO_F030F4.upload.maximum_size=16384
GenF0.menu.pnum.DEMO_F030F4.build.mcu=cortex-m0
GenF0.menu.pnum.DEMO_F030F4.build.board=DEMO_F030F4
GenF0.menu.pnum.DEMO_F030F4.build.series=STM32F0xx
GenF0.menu.pnum.DEMO_F030F4.build.product_line=STM32F030x6
GenF0.menu.pnum.DEMO_F030F4.build.variant=DEMO_F030F4
GenF0.menu.pnum.DEMO_F030F4.build.cmsis_lib_gcc=arm_cortexM0l_math

# DEMO_F030K6 board
# Support: Serial1 (USART1 on PA3, PA2)
GenF0.menu.pnum.DEMO_F030K6=STM32F030K6 Demo board
GenF0.menu.pnum.DEMO_F030K6.upload.maximum_data_size=4096
GenF0.menu.pnum.DEMO_F030K6.upload.maximum_size=32768
GenF0.menu.pnum.DEMO_F030K6.build.mcu=cortex-m0
GenF0.menu.pnum.DEMO_F030K6.build.board=DEMO_F030K6
GenF0.menu.pnum.DEMO_F030K6.build.series=STM32F0xx
GenF0.menu.pnum.DEMO_F030K6.build.product_line=STM32F030x6
GenF0.menu.pnum.DEMO_F030K6.build.variant=DEMO_F030K6
GenF0.menu.pnum.DEMO_F030K6.build.cmsis_lib_gcc=arm_cortexM0l_math

Files and Folders description

• DEMO_F030K6 it's the variant board for the STM32 Arduino Core.
• gerbers it's the PCB gerbers.
• rSTM32F030K6T6 it's the KiCAD 5.1.2 project.
• Schematic.pdf as in the name.

Running some tests

Reducing the size of your sketch

For some reason it seems that the sketchs for this platform gets way too fat (relative to standard arduino-atmel sketch sizes) and on some cases won't fit well on our board, a way to fit the sketchs to the flash/ram size that this board has it's to create a file hal_conf_extra.h on the sketch folder and disabling all features that weren't using:

#define HAL_ADC_MODULE_DISABLED
#define HAL_I2C_MODULE_DISABLED
#define HAL_RTC_MODULE_DISABLED
#define HAL_SPI_MODULE_DISABLED
#define HAL_TIM_MODULE_DISABLED
#define HAL_DAC_MODULE_DISABLED
#define HAL_EXTI_MODULE_DISABLED
#define HAL_ETH_MODULE_DISABLED
#define HAL_SD_MODULE_DISABLED
#define HAL_QSPI_MODULE_DISABLED

(an arduino restart may be required on changes to this file).

Also, if you aren't using the serial you cand disable it on the arduino menu:

Board > U(S)ART Support > Disabled.

Notes

This it's the first board variant I made, so errors may occur.

STM32Duino thread.