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AM5708: Occasional freezing

hiroshi.yamada
Intellectual 575 points

Part Number: AM5708

The AM5708 sometimes freezes at random times, sometimes after a few hours, sometimes after a few tens of hours, or sometimes after a few days.

 When it freezes, I can't access the program via JTAG or other means.

The cause is unknown.

Are there any errata for the AM5708 that limit the OS (Linux or kernel), software, or hardware configuration?

It's taking a very long time.

So far, it doesn't seem to be directly affected by environmental factors such as temperature.

Please give me any hints you can.

Best regards,

Hiroshi Yamada

  • 0
    TI__Mastermind 41586 points

    Hello Yamada-san,

    Do you have any of the logs? Any failure prints?

    You can double check the following document for anything that stands out with your specific Silicon Revision https://www.ti.com/lit/er/sprz436h/sprz436h.pdf

    Have you done DDR stress tests?

    JTAG lock up is interesting.. Are you still able to connect to the device?

    -Josue

  • 0 in reply to Josue Zamitiz-Ayala
    Intellectual 575 points

    Hi Josue-san,

    Thank you for your quick comment.

    I'm trying to collect logs, but the software freezes so I can't.

    I'm currently modifying the app so that I can see the work up until just before it freezes, but the freeze hasn't occurred.

    Is there any way I can check the logs?

    Thank you for the errata information.

    I'm familiar with this document.

    I'm using DDR3L for DDR, and am currently conducting R/W tests.(667MHz)

    It's been a few days, and everything is fine.

    I can reconnect via JTAG by power-on resetting the target.

    If the software freezes and I can't access it, I think the AM5708 is deadlocked. Do you have any suggestions as to what the cause might be?

    Best regards,

    Hiroshi Yamada

  • 0 in reply to hiroshi.yamada
    TI__Mastermind 41586 points

    Yamada-san,

    Can you please share the console logs in CCS when you are attempting to connect to the core? Are you able to run a boundary test when its frozen?

    What is your devices full OPN?

    For logs, are you not able to connect your device to a computer to record all logs? 

    It is difficult to help with no empirical data.

    -Josue