SW4STM32 and SW4Linux fully supports the STM32MP1 asymmetric multicore Cortex/A7+M4 MPUs

   With System Workbench for Linux, Embedded Linux on the STM32MP1 family of MPUs from ST was never as simple to build and maintain, even for newcomers in the Linux world.
And, if you install System Workbench for Linux in System Workbench for STM32 you can seamlessly develop and debug asymmetric applications running partly on Linux, partly on the Cortex-M4.
You can get more information from the ac6-tools website and download two short videos (registration required) highlighting:

System Workbench for STM32

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Change application on Reset !


Look, while driving home, I have remembered that STM32L072CZ has dual bank boot capability, so this could be achieved by changing dynamically the the BFB2 option bit.
This could be a cutting edge solution !

Back to the first one, the pb could be that we jumbed directly to the App2’ main.
So, could you verify that 0x08019F40 is really the App2 Reset Handler Address ?