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Stm32f407 hang up in system memory when debug

Question asked by toth.janos on Jan 19, 2015
Hello everybody!

I've a very strange error. I've running application for stm32f407. I can download the code and it's working well. But when I want to debug with CoIDE the code stopped at 1FFF39c4 so in the system memory. At this point I reset the debugger and the code stop at the main function. I don't know the problem.

Can anyobody help me?