Error Debug FreeRTOS Example On S32K344 S32 Design Studio@3.6.1

[Qiurui]

Hi everyone,

I'm currently developing an application for S32K344 using FreeRTOS and encountered a rather strange issue. When I try to step-through debug my program, it consistently gets stuck at static void prvPortStartFirstTask(void), specifically at the assembly instruction svc 255.

The odd part is that the program runs perfectly fine when I simply download and reset it - the issue only occurs during step-by-step debugging.

Has anyone experienced something similar or could offer some guidance? I've attached my debugger configuration page for reference.

Thanks in advance for any help!

#S32K344  #jlink

[alejandro_e]

Hello @Qiurui,

To be able to help you, please share the following information:

• RTD version you are using, so I may try to reproduce the issue locally.
• Are you using one of our boards or a custom one? If you are using an NXP board, please share the model.
• Have you done any modifications to the FreeRTOS example you mentioned you are using?

Thanks.

[Qiurui]

Thanks for your reply. 

• I'm using RTD 5.0.0

• The board is a custom design (not an NXP development board)

• None modifications on the FreeRTOS example project

I set up the build environment by installing the offline packages listed below.

.
├── S32DS_3.6.1_RFP_win32.x86_64.exe
├── SW32K3_FreeRTOS_11.1.0_5.0.0_CD1_D2409_DesignStudio_updatesite.zip
├── SW32K3_HAL_examples_2025.03_DesignStudio_updatesite.zip
└── SW32K3_S32M27x_RTD_R21-11_5.0.0_D2410_DesignStudio_updatesite.zip

[alejandro_e]

Hello @Qiurui,

Thanks for the detailed description of your setup. I have tested with the same packages and I successfully debugged the FreeRTOS_Toggle_Led_Example_S32K344 program, I was able to perform step-by-step debugging with no problem. I a S32K3X4EVB-T172, which has a build-in debugger using the PEmicro configuration in S32DS. 

From my perspective your issue is related to the Segger-Jlink plugin, I would recommend to contact them directly to know if their debugger features FreeRTOS debugging.

Let me know if I can help you with anything else relate to this problem.