How can I stop on PC=0 for debugging?

[Carter Lee]

Posted on October 19, 2017 at 10:53

I'm currently working with MDK and ULINK2 JTAG debugger in STM32F103C8.

I want to stop Program Counter = 0; for debugging.

But currently as much as I can stop debugging point is just PC = 0x80000178.

Is there any way to start for debugging at the PC =0?

I want to see the how to work the memories.

[Tesla DeLorean]

Posted on October 19, 2017 at 12:41

Zero contains vector data, not code, it is not an executable address.

Look at what the Initial PC vector actually points too.

[AvaTar]

Posted on October 19, 2017 at 13:00

Your current stop is the reset vector, i.e. the address fetched from 0x00000000.

This is basically what you want. Memory initialization happens here, before calling _main.