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IWR6843: What is the recommend method to load the application code in production?

Mustafa Homsi
Expert 1171 points
Part Number: IWR6843

Hello, today we use the UART configuration port to load the application code to IWR6843 device. This has been working fine for development, but we assumed that we would use the JTAG connection during production. Is this the recommended method? If not, how would you recommend loading the application in the factory? Thank you.

  • 0
    TI__Guru 58035 points

    Hello Mustafa,

    Application flashing over JTAG interface is not supported. Broadly there are two options:

    1) If you want to load the application to the flash device already mounted on your sensor, then UART interface needs to be used and the flashing happens via the radar device (ie you communication to the radar device over UART and then radar device would intern write to the flash over QSPI interface). Similar to the way you are using presently.

    2) Other option if to load the application to the flash device directly over QSPI interface without the radar device. You would need a standard SPI/QSPI controller to interface to the serial flash directly. 

    Regards,

    vivek

  • 0 in reply to Vivek Dham
    Expert 1171 points

    Thank you, Vivek. Then just curious, what is the purpose of JTAG connection in this SoC? I am asking this to determine if we even need to route those pins out to a connector. Thx!

  • 0 in reply to Mustafa Homsi
    TI__Genius 9695 points

    Hi Mustafa,

    JTAG can be used for boundary scan.

    Thanks,

    Eben.