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Last Post 03 Feb 2021 07:31 AM by  Adam Ford
am3517 watchdog doesn't reset
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Anthony Jackson
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Posts:2


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02 Feb 2021 05:01 PM

    Has anyone been able to successfully get the hw watchdog working on the board? I set up the watchdog (in uboot), watched it count up to the overflow value and it halts the processor, but does not warm reset like I would expect. 

    If I read the TRM correctly, this is a hardware line that should warm reset the power. All of the logic for doing this is in the am3517 chip, so I don't see a lot of information for how to debug this. Is there something that I have to change in the PCRM?
    Adam Ford
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    Posts:794


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    03 Feb 2021 07:31 AM
    Are you using WDT2 or WDT3? What what I have read on TI's support forum, there is no IVA and therefore WDT3 shouldn't be used.

    https://e2e.ti.com/support/processors/f/791/t/326676?About-Watchdog-Timer-in-AM3517


    What version of U-Boot are you using?

    adam
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    Forums Texas Instruments SOMs and Development Kits AM3517 eXperimenter Kit