MCU Reset. The core is locked up! How do I fix that?

[waclawek.jan]

> The core is locked up!

What does it mean?

What are the symptoms?

What did you do?

What is your hardware and software?

JW

[GCamp.1]

I am using STM32F103C8T6 with arduino-IDE and ST-LINK. Now I'm programing with PA9, PA10 and it is working. I used too ST-LINK Utility and it don't work.