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IWR6843ISK: Stream via Ethernet

Helen Koujak
Prodigy 60 points
Part Number: IWR6843ISK
Other Parts Discussed in Thread: DCA1000EVM

Hello, I'm currently working on a Python script to establish a connection to the DCA1000EVM via Ethernet. Referring to the DCA1000EVM CLI Software User Guide, I've identified the presence of three main components: DCA1000_CLI_Control.exe, DCA1000_CLI_Record.exe, and an RF DLL. The script is successfully sending commands to the board, but encounters failure specifically with the "start_record" command. Upon inspection, I've observed that the LVDS_PATH_ERR LED (LD7) is illuminated, indicating a potential issue with LVDS data transmission from the RADAR EVM.

According to the documentation, when the RADAR EVM fails to send LVDS data, the LVDS_PATH_ERR LED (LD7) lights up, and the CLI displays a "No LVDS data" message. Interestingly, executing the "start_record" command via the command line interface (CLI) is successful, while encountering failure when attempted through my Python script.

Furthermore, I'm at an impasse regarding the next steps to  pursue live streaming . Additionally, I've noted that the specified path in the JSON configuration file, "fileBasePath": "C:\\mySavedData", does not seem to be saving any records eventhough using cmd .

Could you please provide guidance on the steps I should follow to enable streaming via Ethernet?

Regards

  • 0
    TI__Genius 17647 points

    Hello,

    Do you get No LVDS Data error message when attempting data capture via mmWaveStudio? No LVDS Data is a legitimate error on mmWaveStudio as well, so it will help isolate the problem a little bit.

    Best Regards,

    Pedrhom

  • 0 in reply to Pedrhom Nafisi
    Prodigy 60 points

    Hello,

    When utilizing MMWave Studio, the process functions flawlessly; however, when employing my script to initiate the recording, the LVDS_PATH_ERR LED (LD7) lights up unexpectedly.

    I need guidance on the sequential steps necessary to live stream data using python script not the studio.

    Best Regards,

    Helen

  • 0 in reply to Helen Koujak
    TI__Genius 17647 points

    Hello,

    We do not have an example of using python to do Ethernet capture, so officially we do not support this. And if it works with mmWaveStudio but not with your code, then there is something wrong on your end. However, there are unofficial python based DCA1000 tools you can find on GitHub that might give some pointers.

    Best Regards,

    Pedrhom