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 (registration required) various documents highlighting:

System Workbench for STM32

You are viewing a reply to Bootloader and Application Code  

Bootloader and Application Code


Just two thoughts:

  1. If you get stuck in an unexpected interrupt, you should look at the value in the 9 LSB of the program status register: they give the number of the exception you are in; if it’s greater than 16 (what I think) subtract 16 and you’ll get the IRQn of the interrupt: knowing which unexpected interrupt you got will probably allow you to know what the problem is.Maybe an interrupt programmed by the bootloader code and not reset before sarting your application?
  2. You try to blink your LED a bit too fast in my opinion: blinking at 10Hz (10 times per second) i shardly seen as blinking but just as a half-lighetd LED... You should probably set BLINK_DURATION_MS to at least 100 or 200.

Bernard (Ac6)