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AWR1642BOOST: Interfacing TI AWR1642BOOST with external MCU for OOB Demo

Anton Rahul Obordo Karve
Prodigy 10 points
Part Number: AWR1642BOOST

Tool/software:

I want to interface the AWR1642BOOST EVM with an ESP32 via SPI by modifying the EVM's OOB Demo, using ESP32 as the master and EVM as the slave. I also want to allow the ESP32 to control the radar config and data output (as in what data gets transmitted) via the CLI. How should I modify the OOB Demo to do this? Furthermore, would you recommend SPI or UART as the best communication protocol for such a task? Thank you for your help!

  • 0
    TI__Guru*** 149044 points

    Hi,

    This project is not as simple as it seems.

    First you need to be concerned with the HW connection between the boards. Currently the OOB demo uses 2 UART ports: one for Commands one for Data.

    However, on the AWR1642BOOST that UARTs are connected to the USB micro connector. So, you can't connect these ports to the ESP32. There is one UART port exposed on the Connector. 

    On the other hand you could use the SPI to connect to the ESP32. We have an internal example that shows how to use SPI instead of UART for the OOB demo data transmission. We can share that with you if you want. 

    Regarding SW, the demo has a CLI thread that processes the CLI commands. I don't think that is updated to SPI in the example we have internally. So, you would need to update that to use SPI. 

    So, there is definitely need to fully understand how the config of the demo works and make updates as needed

    thank you

    Cesar

  • 0 in reply to Cesar
    Prodigy 10 points

    Yes please, could you share the example for using SPI instead of UART for the OOB data transmission with me? Thanks!

  • 0 in reply to Anton Rahul Obordo Karve
    TI__Guru*** 149044 points

    Please download from this link

    https://tidrive.ext.ti.com/u/4S5scwOubNXzLmx1/d7b13658-83e5-47c5-af0b-1b06bac62acd?l

    Access Code:

    c4P-B2Be

    thank you

    Cesar