S32K324 Can't debug in FLASH mode

[Simone9]

Hello,

I have created a project for the S32K324 microcontroller and started development.
Debugging in RAM gives me no problems and I can work normally.
However, when I try to debug in FLASH I get a hard fault.
In particular, the console log shows the following message:

"MemManage: The processor attempted an instruction fetch from a location that does not permit execution.
HardFault: A fault has been escalated to a hard fault."

Instead, in the call graph, the calls are as follows:

So it seems to get stuck at cache initialisation.
Among the design variables is the define D_CACHE_ENABLE so it should enable it.

How can I solve this problem?

IDE version 3.5 update 6
RTD v3.0.0

Thanks for the support

[Robin_Shen]

Hi

HardFault may caused by: Missing define S32K324/S32K314 in SystemInit() so MPU region for ROM hasn’t enabled:

This issue has been fixed in S32K3 RTD 4.0.0.
Sorry for the inconvenience we bring you!

Best Regards,
Robin
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[Simone9]

Thank you for your reply.
I added in SystemInit() the define of the S32K324 in the section you indicated directly by hand.
This way I am able to debug in FLASH and it works.

But it only works for Core0 in both single mode and "Launch Group" mode.
On the other hand, for Core1 with the same change in debug mode in "Launch Group" mode, the situation in the pictures below happens.

In the consol log what I can see is:

So, i'm able to debug only the Core0 but not the Core1. How can I resolve this issue?

Thanks for the support.

[Robin_Shen]

Have you also modified SystemInit in S32K324_M7_1/Project_Settings/Startup_Code/system.c? Have you tested S32K3 RTD 4.0.0 to see if this problem also exists?

[Simone9]

Hi,

Yes, I have also modified Core 1 SystemInit function in the same way.
No, I have not tested the RTD 4.0.0 because the project on which I'm working require the version 3.0.0 of RTD.

Thanks

[Robin_Shen]

I don't have S32K324 chip on hand, only S32K344EVB.
Is it convenient for you to install another S32DS v3.5+S32K3 RTD 4.0.0 for testing?  If S32K3 RTD 4.0.0 works, then we can compare the differences and fix it.

[Simone9 · Accepted solution]

Hi,

I solved the problem by recreating the project from scratch.
Probably, something went wrong with the creation of the project than adding the missing definition that I can debug in flash in both cores.

Thanks for the support.