Set up your development environment

To debug the Neoverse N2 reference firmware, you need Arm Development Studio installed, and an appropriate license. See the Arm Development Studio Install Guide for instructions. Screenshots are from Arm Development Studio 2023.0.

You also need the Neoverse RD-N2 Reference Design Software Stack set up, and an associated FVP (Fixed Virtual Platform). You should be familiar with Get started with the Neoverse Reference Design Software Stack before you start debugging.

SCP/LCP/RSE debug

If you want to debug SCP/LCP/RSE, you need to modify the run script:

    

        
        
rdinfra/model-scripts/rdinfra/platforms/rdn2/run_model.sh

    

To prepare for debugging, remove the –R parameter from the PARAMS= section.

When -R is used, the FVP continues execution and does not wait for the debug connection.

Figure 1. Modify run_model.sh

Run the script to launch the model:

    

        
        
./run_model.sh

    

AP debug

To debug the AP, you do not want to remove the -R flag.

If you remove the -R flag, RSE CPU waits and the APs will be powered off. You will have to kick-off the run, then it starts booting from RSE to AP cores.

This will be explained further in BL1, BL31, and BL33 chapters.