Hello, when trying to programm a STM32L151RBT6A with STM32IDE I'm getting the message: "Break at address "0xf3af4804" with no debug information available, or outside of program code." What can the reason be? Thank you in advance. BR David

[Tesla DeLorean]

Does it run at all? You're going to establish more context.

Custom board? If you turn off "run to main()" can you step out of Reset_Handler?

Can you instrument follow with output to UART or SWV channel?

Bad function pointers.

Stack frame corruption, ie out-of-bounds local/auto variables, or too small.

Bad vectors table content.

[DPete.1]

It is a custom board. This project is running well with IAR until now.

Now I would like to port it to the STM32CubeIDE.

I created a new project for the right µC and added all source and header files.

I checked now the internal flash memory.

The software is much bigger then the bytes which are writen by the IDE. Also the hex file is to small.

I couldn't find a "run to main()" settings. Disabling the "Stop at startup at" setting did not help.

[Uwe Bonnes]

Your setup is screwed and you programmed nonsense to the board. Recheck your setup and every step you did. The error above show probably a bad jump to some undefined reference