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Original question:

IWR6843: Adding lua external modules to extend the automation

IWR6843: Reading console output from my lua automation script

Cagri Tanriover
Intellectual 895 points
Part Number: IWR6843

Hi,

I have been exploring ways to read the output of the console after triggering data capture. I would specifically like to capture the "Frame Ended" string output as indicated below so that I can trigger another process from within my automation lua script. The problem is this response arrives at the console output asynchronously and not in response to a specific lua command.

[16:56:22] [RadarAPI]: Frame Ended

[16:56:22] Frame End async event received!

I can see the above output on the output console but I cannot access that output from within my automation lua script.

I spent quite a bit of time trying to redirect the console output to a file that I could process in my script but that did not work. For some reason, redirecting the stdout to a file does not help at this instance.

To recap, following is the top level functionality I am trying to achieve:

1 - Trigger collection of N radar frames using the automation script.

2 - Wait until the console output displays "[RadarAPI]: Frame Ended" (indicating N frames have been collected)

3 - Automation script detects the "[RadarAPI]: Frame Ended" on the console then triggers another post-processing task from within the same lua script.

At the moment, my automation script executes step 1, after which I have to manually intervene to bridge the gap after the N frames are captured.

If you have any suggestions on achieving the above, that will be of great help.

Regards,

Cagri

  • 0
    TI__Mastermind 33805 points

    Hi,

    In the LUA script you could toggle frame start as shown below 

    if (0 == ar1.StartFrame()) then
	WriteToLog("Frame Start Success\n", "green")
else
	WriteToLog("Frame Start Failed\n", "red")
end

    This indicates if it fails or succeeded. Since you know the frame period you then set a delay for that time frame and continue

    RSTD.Sleep(5000)

    Regards,

    Charles O

  • 0 in reply to Charles Oladimeji
    Intellectual 895 points

    Hi Charles,

    Thank you for your suggestion. That will work I think.

    However, just out of curiosity, is there a guidance from TI on how to redirect the stdout to a file? It will be good to know this to log the full notification messages to a file as well. (I am not well-versed in lua as I haven't been using it much)

    Regards,

    Cagri

  • 0 in reply to Cagri Tanriover
    TI__Mastermind 33805 points

    Hi,

    We don't have a  documented process for this at this time, But I can help with any other questions you may have.

    Regards,

    Charles O

  • 0 in reply to Charles Oladimeji
    Intellectual 895 points

    Hi Charles,

    Thanks for your message.

    I have implemented the solution based on the delay insertion suggestion. After a few tests and timing tweaks, it seems to do the job for me. Therefore, I have no further related questions on this at the moment. Thank you for your help.

    Regards,

    Cagri