MemManage and HardFault come up when debugging, so it doesn't work

[bohee2]

Hello.

I'm currently using the s32k324 board.
I'm running a simple example code, but I get the following two errors while debugging

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.

Can you tell me the solution?

Thank you.

[danielmartynek]

Hi @bohee2,

Which revision of the RTD do you use?

There have been some issues with the MPU configuration in system.c for some S32K3xx derivatives.

In general, MemManage faults are caused by MPU access violation.

You can disable the MPU in system.c

Regards,

Daniel

[bohee2]

Thank you for your answer.

RTD is using 3.0.0 version. I will attach the picture.

bohee2_0-1739444517454.png

Is this an error caused by the RTD version? I am asking because such an error does not occur when it is 5.0.0.

Thank you

[danielmartynek · Accepted solution]

Hi @bohee2,

In system.c of the RTD version, the MPU region 2 is not configured on S32K324.

danielmartynek_0-1739523808523.png

As you can see above, S32K324 macro is missing.

Solution is to add S32K324 there so that RASR[2] is configured 

rasr[2]=0x070B0027UL;

Regards,

Daniel

[bohee2]

Thank you!
Thanks to you, I solved it