The STM32 family of 32-bit Flash MCUs based on the ARM Cortex-M processor is designed to offer new degrees of freedom to MCU users. It offers a 32-bit product range that combines very high performance, real-time capabilities, digital signal processing, and low-power, low-voltage operation, while maintaining full integration and ease of development.

Home (home page in PlatformIO Platform Registry)
Documentation (advanced usage, packages, boards, frameworks, etc.)

Usage

Install PlatformIO
Create PlatformIO project and configure a platform option in platformio.ini file:

Stable version

[env:stable]
platform = ststm32
board = ...
...

Development version

[env:development]
platform = https://github.com/platformio/platform-ststm32.git
board = ...
...

Configuration

Please navigate to documentation.