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IWR1443BOOST: Synchronization of multiple radars

user5925306
Intellectual 300 points
Part Number: IWR1443BOOST
Other Parts Discussed in Thread: IWR1443, IWR1843, DCA1000EVM, IWR1843BOOST

Dear TI staff,

We are considering to detect objects using several radars. In such case, we may need to either synchronize the operation of multiple radars or synchronize the output data of the radars. Is there any existing Labs or relavent TI solutions to this application? Or is there any operation mode of IWR1443 that could enable us to do so?

Thanks in advance!

Best,

Andrew

  • Former Member
    0 Former Member

    Hello,

    There isn't an explicit lab example of synchronization of multiple radars. However it is certainly possible. The GPIO pin can be used to toggle sensorStart and sensorStop commands - shown in the out of box in the early SDK (removed in later example demos). 

    Look for the MmwDemo_switchPressFxn in the SDK version 2.1.0.4 demo.

    You can configure all the radars you are using with this function and trigger via the GPIO pin.

    Is there a particular reason you are using IWR1443 instead of IWR1843? 1443 is a long term support device while 1843 will continue to receive SDK updates - if you are just starting your application development you may want to consider 1843 which is a superset of 1443 with additional memory and processing capabilities.

    Other relevant e2e threads:

    https://e2e.ti.com/support/sensors/f/1023/p/834651/3102361#3102361

    https://e2e.ti.com/support/sensors/f/1023/t/753908

    Amanda

  • 0 in reply to Former Member
    Intellectual 300 points

    Dear Amanda,

    Thank you for your valuable suggestions!

    Regarding to the choice between IWR1443 and IWR1843, because I have previous experience with IWR1443, I am not sure about the compatibility of IWR1843 to IWR1443, especially that:

    (1) Will there be any difficulty or problem to apply the Labs of IWR1443 to IWR1843 ?

    (2) Is IWR1843BOOST compatible with DCA1000EVM ?

    Best,

    Andrew

  • 0 in reply to Former Member
    Intellectual 300 points

    Hi Amanda,

    If two radar boards are far apart (several meters away from each other), that using wires to transmit signals to GPIO pins of two radar boards is not practical. In such case, is there any relavent TI solutions? Or maybe we could only take solutions like wireless switch to simultaneously control two radar boards?

    Thanks,

    Andrew

  • Former Member
    0 Former Member in reply to user5925306

    Andrew ,

    1 - 1843 device is the superset device and has additional capabilities beyond 1443. However, you cannot run a 1443 lab without migrating the code to be compatible with 1843 and the appropriate SDK.

    2 - Yes 1843 is compatible with the DCA1000

    3 - The system design for triggering the GPIO is left to the application designer. You could use a wifi boosterpack board to trigger the GPIO but there is not a readily available demo to demonstrate so.  

    Amanda