Description
Hello!
I have some new Blue Pill Boards with STM32F103C8T6 and I ran into the following issue:
I've uploaded the generic_boot20_pc13.bin (also tried the fastboot version) using an USB-UART Adapter.
This works well, I can program the STM32 via Arduino IDE.
Afterwards, the Blink Example runs, I have a new Serial Port (CDC) which also runs perfectly.
However the Magic Reset via DTR doesn't seem to work, if I try to program the STM32 again, I am never able to get the board into DFU Bootloader Mode again.
Has anyone an idea, why this isn't working? I've tried the same procedure, with an old Bluepill (about 4 years old). And everything works as expected.
Thanks!
EDIT:
I've justed swapped the two STM32F103C8T6 between the two boards - it seems to be an issue directly with the STM32 - do you know if there are any difference although both have written "STM32F103C8T6" on them? Maybe a chinese clone?