STM32F103C8T6

[KreyManF]

Any code don`t work on this board. Error:
Arduino-STM32-nRF24L01\MirfHardwareSpiDriver.cpp:22:23: error: 'SPI_2XCLOCK_MASK' was not declared in this scope SPI.setClockDivider(SPI_2XCLOCK_MASK);
How fix it?

[nopnop2002]

There is no problem in my environment.

I would like to know about your environment.
core library version
Arduino IDE version
Board part number

There is some core library for STM32.
maple core may not work.
We use this.
https://github.com/stm32duino/Arduino_Core_STM32