Hi friends.
I have a blue pill discovery board (STM32F103C8) which I programmed several times but now I face with this error message.
I made CubeMX file which create a file in Keil and I write code in it.
I understood when I made CubeMX file, I forgot to select serial wire for programming microcontroller.
Now I can not program and I tried it by reset key in board.
Anyone can help me?
The STM32F103C8 example projects offered by the Pack Installer of Keil MDK demonstrate a typical setup in combination with a ULINK2 Debug Adapter:
https://www2.keil.com/mdk5/packinstaller/
https://www.keil.com/arm/ulink2/
Related:
https://www.keil.com/support/man/docs/ulink2/ulink2_trblshooting.htm