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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


bitfield insert instruction contains "invalid" in .lst file

Using SW4STM32 I’ve ported over a working application for the STM32F769 to a STM32H743 part as I’ve done before with several other projects with success. This is an ST AudioWeaver board support project.

This time the code appears to work except for certain operations. In tracking this down I have found the .lst file contains strange bit field insert instructions with key word “invalid” as below:

bfieq sp, sl, (invalid: 22:11)

there are about 20 instances of this in new project - and if I inspect .lst file for other target, there are none. I’ve spent hours searching for any similar issues and can not find anything.

The only changes to working STM32F769 project are that all the HAL files were replaced with the files for STM32H series, and the target was changed. The odd thing is that it “fundamentally” works except when trying to call the functions in AudioWeaver to load a schematic. It returns but does not load the schematic and audio processing continues - no hard fault or other indication...

Does anyone have any idea what the issue is and what can cause this? Why would the instruction contain invalid bitfield?

Thanks!