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STM32F0 common debugger problem

G M

I've seen multiple threads around the internet about the issue I'm having with no solution. So here's another thread:

I can't get the ST-Link/v2 debugger to work. When I compile the project in uVision 5 and flash a board with the STM32F070CB I'm using this all works great.

But when I try to debug the debugger doesn't go into main() in startup_stm32F070xb.s, instead it goes through all of the lines below (past main) to where the arrow is:

IMPORT  SystemInit
                 LDR     R0, =SystemInit
                 BLX     R0
                 LDR     R0, =__main
                 BX      R0                     <---
                 ENDP

I've tried everything, I checked all the project settings at least a 1000 times.

This is code that was generated straight from STM32CubeMX using HAL but no OS.

I can get debugging to work on the STM32F0Discovery board with the example project. But I can't get it to work when I try to create my own project on that same devkit with the exact same project settings. When I do that I have the exact same problem as described above.

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