Hello NXP Team,
I'm encountering an unusual issue with our system:
Normal Operation:
- When the SBC enters sleep mode (with only 12V power remaining) and is immediately woken up (3.3V/5.0V power rails restored, ~10s wait), I2C initialization works correctly.
Failure Case:
- If the SBC sleeps for 5 minutes before waking up, the I2C initialization triggers a HardFault.
Additional Information:
- I can connect the PE debugger to monitor the chip during the HardFault, but I'm unsure what specific debug information to capture.
Request for Support:
Could you please advise:
- What key debug information should I monitor during the HardFault?
- What might be the potential root causes for this issue?
Thank you for your assistance!
I also attempted to bypass the Bootloader and run the application directly from the Boot address. The purpose was to alter the code storage location in FLASH, but the same issue still occurs. Moreover, the problematic FLASH address is very close to the previous one.
To clarify, we are not using the MPU (Memory Protection Unit). Here are some register information captured during the error occurrence:
Hello！
I couldn't find the S32_SCB module on my side, but I did see the content at address 0xE000ED28. I'd like to know what causes this exception to be triggered, and why waking up after 1-2 minutes of sleep doesn't trigger the exception, while waking up after 5 minutes does trigger it.Does this indicate that the chip is already damaged?
