AnsweredAssumed Answered

STM32F415ZG user bootloader does not start without debugger

Question asked by kamba.hugues on Mar 14, 2014
Latest reply on Apr 25, 2014 by kamba.hugues
Hi everyone,

I have develpped a bootloader firmware for the STM32F415ZG microprocessor board. I developed it with Keil uVision 4.23 IDE and used Keil ULINK2 debugger.

When I have the ULINK2 connected to the board SW port I can start a debugg session then press the "Run" button in the IDE to start running the code. The bootloader firmware does exactly what I want it too.

However when I remove the ULINK2 and restart the board it seems the application is not starting. The application seems to be starting only when I use the ULINK2 and the IDE "Run" button.

Any idea why this is happening and how to resolve it will be very much appreciated.

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