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Setup for Arduino IDE

  • What you need:
    • An STM32 ProMini F411CE board.
    • An ST-LINK V2 programmer. Any generic ST-LINK V2 programmer should work, which can be found on eBay or AliExpress.

Software

IDE Setup

  • Download and install Arduino IDE.
  • Download and install STM32duino package.
    • Open Arduino IDE.
    • Open Preferences.
    • Add https://github.com/stm32duino/BoardManagerFiles/raw/main/package_stmicroelectronics_index.json to Additional Boards Manager URLs.
    • Open Boards Manager.
    • Search for STM32 MCU based boards and install the package.

Installing the necessary board configurations

  • Open library directory.
    • Windows: C:\Users\<username>\AppData\Local\Arduino15\packages\STMicroelectronics\hardware\stm32\<version>\
    • Linux: ~/Arduino15/packages/STMicroelectronics/hardware/stm32/<version>/
    • macOS: ~/Library/Arduino15/packages/STMicroelectronics/hardware/stm32/<version>/
  • Locate the boards.txt file and open it.
  • Copy and paste the ENTIRE contents of arduino/boards-add.txt from this repository to the boards.txt file.
  • Save the file.
  • Copy and paste the arduino/variants folder from this repository to the variants folder in the STM32duino package directory.
  • Now, you should be able to find the Custom boards in the Arduino IDE, and ProMini F411CE will appear under the Board part number section.

Wiring

  • Connect ST-LINK V2 programmer to the board. Only 4 wires are needed:
    • SWDIO -> SWDIO
    • SWCLK -> SWCLK
    • 3.3V -> 3V3
    • GND -> GND

Uploading code

  • Connect ST-LINK V2 programmer to the computer.
  • Write any code, such as
// Blink LED on PC3
void setup() {
  pinMode(PC3, OUTPUT);
}

void loop() {
  digitalWrite(PC3, HIGH);
  delay(1000);
  digitalWrite(PC3, LOW);
  delay(1000);
}
  • Select the board Custom Boards and set the board part number to ProMini F411CE.
  • Make sure that the Upload method is set to STM32CubeProgrammer (SWD). Port does not matter.
  • Now, you can simply upload the code to the board by clicking the Upload button.