SK-AM62A-LP: AM62x: How to solve High Priority Interrupt error?

Sopheap Key

Part Number: SK-AM62A-LP
Other Parts Discussed in Thread: SYSCONFIG

Tool/software:

Hello TI Dev Team,

Recently, my team and I are working on a project using AM62ALP evm board. At first run in the debug session, everything went perfectly smooth without any error. However, once I stop debugging and rebuidling the code, I got an unexpected error regarding High Priority Interrupt. I got a message as shown below and it is needed to reboot the board to debug every time. Could anyone explain me this problem and how to solve it? I used sysconfig to initialize drivers and adjust the priority of each drivers to lower number, but it could not solve my problem.

The CPU is executing a High Priority Interrupt, this is typically due to a Double Page Fault. Choose 'Force' to force the CPU into a state that allows debug of why the HPI is active.

22 days ago

0 Tushar Thakur 22 days ago

TI__Mastermind 29163 points

Hello Sopheap,

Thanks for your query.

Which MCU+SDK version are you using?

Please provide sample code to replicate the issue on our end for faster debug.

Regards,

Tushar

0 Sopheap Key 22 days ago in reply to Tushar Thakur

Prodigy 50 points

Hello Tushar,

Once again, thank you. Currently, I am using mcu_plus_sdk_am62ax_10_00_00_14. Actually, I run the example provided in MCU+SDK (any example will have that issue). I imported the projected and built it. Once it is already built, I just go to debug session for the first time, it was okay no error happens.
But once I closed the debug window and rebuilt the project, that error occurred.

0 Tushar Thakur 22 days ago in reply to Sopheap Key

TI__Mastermind 29163 points

Hi Sopheap,

Can you please provide a screenshot of the error?

Regards,

Tushar

0 Sopheap Key 22 days ago in reply to Tushar Thakur

Prodigy 50 points

Hello Tushar,

Here is the screenshoot of the error on the second run. I searched online for the root cause of this error and tried to follow some suggestion, but it still occurred. I nituced the error only occurs after I load .out file into the board and terminate it. I tried to reduce the main task priority to the lowest priority, but that could not solve the problem either. The only thing I can do now is to reboot the board.

0 Tushar Thakur 21 days ago in reply to Sopheap Key

TI__Mastermind 29163 points

Hi Sopheap,

Thanks for sharing the above logs. I have never faced such issue.

Please provide us sample code to reproduce the issue on our end for faster debug.

Regards,

Tushar

0 Sopheap Key 21 days ago in reply to Tushar Thakur

Prodigy 50 points

Hello Tushar,

Here is the source code of a gpio led example provided by MCU+SDK.
https://drive.google.com/file/d/1j2aSqHBvEDtGqRzY6cedZgTpNYneKsCG/view?usp=sharing

The first run after loading output file to the board run without any error. But, that error occurs on the second run after loading output file.

0 Tushar Thakur 20 days ago in reply to Sopheap Key

TI__Mastermind 29163 points

Hi Sopheap,

Thanks for sharing the above source code. I am able to reproduce the issue at my end and working on it.

Please allow some time to revert back.

Regards,

Tushar

0 Sopheap Key 23 hours ago in reply to Tushar Thakur

Prodigy 50 points

Hello TUshar,

I hope you are doing well. Have you taken my input to check? Please kindly keep me updated.

0 Tushar Thakur 23 hours ago in reply to Sopheap Key

TI__Mastermind 29163 points

Hi Sopheap,

Apologies for the delay here. I was busy with some escalations.

The error message says that the CPU is executing high priority interrupt typically due to double page fault.

It seems that the compiler has generated vector predicated stores which extends the memory region by 63 bytes.

Can you please try by reducing the memory section to 63 bytes as suggested below to avoid the page fault?

Please refer below image.

Please let us know the results.

Regards,

Tushar

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SK-AM62A-LP: AM62x: How to solve High Priority Interrupt error?