what version of the OS are you using?

you can load the overlay for that com port in Uenv.txt

On 2/24/2021 10:08 AM, Piyush Raj ae19m009 wrote:
I tried suppressing the error produced by line 462 by bruteforce (putting is_capemgr as True). and got rid of this error. however, got stuck with the error inĀ  468 (Device Tree overlay fragment BB-UART4 not loaded). which means that load_dt fails to fetch the port. i am trying to find out location of load_dt function. hopeful to solve this issue with community help. thanks

On Wednesday, February 24, 2021 at 9:17:11 PM UTC+5:30 Dennis Bieber wrote:

    On Wed, 24 Feb 2021 06:33:30 -0800 (PST), in
    gmane.comp.hardware.beagleboard.user Piyush Raj ae19m009
    <ae19m009-p/[email protected]> wrote:

    >
    >what is it that i need to do differently in pocketbeagle. This
    same code
    >works for my pocket beagle. i have also ensured that my ttyO4 is
    enabled.
    >

    Please clarify "pocketbeagle" vs "pocket beagle"? I suspect you mean
    one of the beaglebone black series...

    >My code is as below. any help would be highly appreciable. Thanks
    >

    A Google search reports a BBB showing the same message -- on
    StackOverflow, three years ago -- with no answers.

    No confirmed answers here either
    https://groups.google.com/g/beagleboard/c/kBfn3JW2Kao
    <https://groups.google.com/g/beagleboard/c/kBfn3JW2Kao>
    though I would suggest verifying the /boot/uEnv.txt files on the two
    systems you mention, along with checking kernel version,
    bonescript and
    node.js versions.

    The message itself appears to be produced at line 462 of
    https://github.com/jadonk/bonescript/blob/master/src/my.js
    <https://github.com/jadonk/bonescript/blob/master/src/my.js> but
    as I don't
    "do" node.js I can't really follow that logic.


-- Dennis L Bieber

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