To my knowledge it’s still not there. My PR for it (Add SPL support for bluepill board by maxgerhardt · Pull Request #226 · platformio/platform-ststm32 · GitHub) is also still open.
Can you talk to the devs directly and get your PR merged pls?
Can you test the example project linked at Enable SPL for STM32F1 by maxgerhardt · Pull Request #667 · platformio/platform-ststm32 · GitHub on your board please?
Thanks for getting back to me so quickly. I effortlessly migrated my code from STM32Cube to PlatformIO thanks to your changes. Also, I tested your example project and I propose these changes.
Hmm, any updates about merging your PR?
It’s in the PIO developer’s (@valeros) hands now, I can’t affect it.