• State
  • Locked Locked
  • Replies 1 reply
  • Subscribers 100 subscribers
  • Views 54 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

PROCESSOR-SDK-AM437X: AM437x: Inconsistent interrupt handling during low-power modes

Mel Burns
Prodigy 10 points
Part Number: PROCESSOR-SDK-AM437X

Tool/software:

Hi,

I’m working with the AM437x processor in a low-power embedded system, but I’m encountering an issue where interrupts are not being handled consistently when the processor enters low-power modes. In some cases, the interrupts don’t trigger or are missed entirely.

Has anyone worked with low-power modes on the AM437x and faced similar issues with interrupt handling? 

Thank you for your help!

Regards: https://www.concretesrichmondva.com/

  • 0
    TI__Genius 14450 points

    Hi Mel,

    Just a few questions to start:

    1. Can you explain understand how the interrupts were defined? Was this in the device tree or in user space?

    2. What kind of interrupts are being used as wakeup source? GPIO, UART or anything else? The output of 'cat /proc/interrupts' would be helpful.

    3. Are you expecting to use multiple wakeup sources or just one?

    4. Has this been replicated on a TI EVM rather than custom hardware?


    Best Regards,

    Anshu