S32K312 after Boot jump Clock_Ip_Init hardfault

[jichengyou]

When I use S32K312, after I use Boot jump to app, call Clock_Ip_Init, it goes into hardfault.
I tried for a few days without finding the problem, and as you can see from the logs, the jump was successful, but the call to Clock_Ip_Init leads to hardfault.
Attached are the relevant project codes and screenshots. Please help me confirm the problem.

[jichengyou]

here is the code

[petervlna]

Hello,

I have loaded your example and had quick look at the issue. I can see tour Hardfault is escalation of

UNDEFINSTR - Indicates an undefined instruction was executed. This can happen on exception exit if the stack got corrupted.

but the call to Clock_Ip_Init leads to hardfault.

Furthermore: looking at clock_ip_init I can call it successfully.

Your code is crashing at my side on address:

Once I execute it the code is going to userfault - >hardfault because that is unknown instruction.

Do you see the same?

Best regards,

Peter

[jichengyou]

I can't understand what you mean. Could you explain it in more detail?
As I was debugging I found that the address of the function Clock_Ip_pfkNotificationsCallback was set to 0x0, and I think that is why it went into hardfault.
But I can't find where it changed to 0x0.

[petervlna]

Hello,

For me it is going to hardfault on the settings of waitstates as you can see from my screenshot.

You can simply debug it by following the guide below:

https://www.google.com/url?sa=t&source=web&rct=j&opi=89978449&url=https://community.nxp.com/pwmxy876...

To me it seems like incorrect clock settings, which can produce faulty instructions.

But please do debug on your side according to guide to see what is exact reason.

Best regards,

Peter

[jichengyou]

hello @petervlna

I found that this problem seems to be related to the size of my BSS. Now I want to try to expand its storage area, but I don't know how to deal with it. Could you help me check it？

[petervlna]

Hello,

Hmm, this is strange. If you do not have large enough section BSS to fit code there, compiler would rise errors for your linker. And I was able to compile the code here.

I am bit confused here.

Nevertheless, please refer to you compiler documentation on how to work with sections in linker.

For example I see size of your BSS in DCU project:

Best regards,

Peter

[jichengyou]

@petervlna
Hello petervlna，please refer to my previous reply.