Arduino for STM32

Even way more complex stuff than blink runs as long as I flash it using ST-LINK. It just looks like this devices USB device mode is not as STM32F103 compatible as advertised, and nobody ever bothered to adapt the cores USB CDC code to make it work on this thing. As practically all Bluepills you can ...

Hi! It turns out that the last few Bluepill boards I received seem to have repainted CH32F103 on them. There are 3 mold dents on the chip, and from what I read this typical for a CH32F103. They seem to work just fine when being programmed via STLINK. However I cannot get USB CDC to work on any of th...