unable to build for fusion F1 DSP MIMXRT595-EVK

[Nicolas-ph]

Hi,

When trying to build one of the examples (following https://mcuxpresso.nxp.com/mcuxsdk/25.06.00/html/boards/RT/evkmimxrt595/gettingStartedXplorer/topics...) I get the following error:

[nicolas@LPC84-nicolas xcc]$ make
[  5%] Building C object CMakeFiles/dsp_naturedsp_dsp.elf.dir/opt/mcuxpresso-ide/SDK_25_06_00_EVK-MIMXRT595/SDK_25_06_00_EVK-MIMXRT595/boards/evkmimxrt595/dsp_examples/naturedsp/fusionf1/main.c.obj
Error: the "nxp_rt500_RI23_11_newlib" core is not in the current Xtensa core registry.

You need to either specify the name of a registered Xtensa core (with
the --xtensa-core option or the XTENSA_CORE environment variable) or
specify a different registry of Xtensa cores (with the --xtensa-system
option or the XTENSA_SYSTEM environment variable).

The following Xtensa cores are available:
<None>

The  is set to XTENSA_SYSTEM is set .../builds/RI-2023.11-linux/nxp_rt500_RI23_11_newlib. XTENSA_CORE is set to "nxp_rt500_RI23_11_newlib", but is not found. No cores are available?

When using the Xplorer application I get the same error. The DSP configuration for linux newlib was downloaded from tensilica tools and installed using the GUI.

The specific build error is: 

**** Incremental Build [Wed, 23 Jul 2025 11:46:42] ****
 Project: test
 Configuration: nxp_rt500_RI23_11_newlib
 Build Target: Debug
********************************
....

LLVM ERROR: Failed to load library ~/xtensa/XtDevTools/install/builds/RI-2023.11-linux/nxp_rt500_RI23_11_newlib/config/llvm/lib/libXtensaCodeGen.so. Unsupported processor configuration. ~/xtensa/XtDevTools/install/builds/RI-2023.11-linux/nxp_rt500_RI23_11_newlib/config/llvm/lib/libXtensaCodeGen.so: cannot enable executable stack as shared object requires: Invalid argument

....

Could there be something wrong with the DSP configuration for linux (newlib) v10.1.11 download from tenisillica tools? Is anyone else experiencing issues on Linux?

[Nicolas-ph]

Hi Gavin,

Thank you for the reply. 

If the license is not ok, I am unable to start the build process in the IDE. So that should not be it. Also, the Xplorer IDE reports that the license is ok in both windows and Linux.

Best regards,
Nicolas

[Gavin_Jia]

Hi @Nicolas-ph ,

I did the same test for you on a test environment and the problem should be in the environment variable configuration. Modify it to the following configuration and it will work:

XTENSA_SYSTEM=~/xtensa/XtDevTools/install/builds/RI-2023.11-linux/nxp_rt500_RI23_11_newlib/config
export XTENSA_CORE=nxp_rt500_RI23_11_newlib export 

Best regards,
Gavin

[Nicolas-ph]

Update, going through the same steps on windows, I am able to build...

[Gavin_Jia]

Hi @Nicolas-ph ,

Thanks for your interest in NXP MIMXRT series!

The Windows environment can compile DSP code, so your configuration process should be fine. I just suspect that it could be due to a problem with the license in a Linux environment.

Best regards,
Gavin