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AWR1443Boost: Setting for MIMO mode

user4916662
Prodigy 120 points
Part Number: AWR1443BOOST

Hello, kind forum people.

This is a very basic question.

I want to drive my AWR1443Boost in a simple horizontal MIMO mode; 

One TX1 chirp and  one TX3 chirp in each frame.

In my understanding, there is no clear command to switch MIMO mode on,

and the following config will realize it.

Is my understanding correct ?

dfeDataOutputMode 1

channelCfg 15 5 0
adcCfg 2 1
adcbufCfg 0 1 0 1
profileCfg 0 76 7 7 140 0 0 14 1 256 2000 0 0 30
chirpCfg 0 0 0 0 0 0 0 1
chirpCfg 0 0 0 0 0 0 0 4
frameCfg 0 0 2 0 50 1 0
sensorStart

I'm asking this question because something is wrong with my understanding.

Range profiles I got so far from TX1 chirp and TX3 chirp seem almost identical, without switching.

Thank  you.

mmwave_sdk_01_00_00_05

  • 0
    TI__Guru 58035 points

    Hello,

    The mmw demo application does exactly what you are looking for, MIMO configuration between TX1 and TX3. There is no separate API for it, the way its done is you define different chirps to use different transmitters and then the frame sends out the various chirps you have defined.

    Below is an example configuration file from the mmwave demo application. You have reconfigured the Chirp [0] to first used TX1 and then you are over writing the same chirp [0] to use TX3 . Instead you should define a new chirp [1] to use TX3 and in the frameconfig you configure it to  transmit from chirp [0] to chirp [1]. You might want to repeat chirp [0]/[1] N number of times and that is also done in the frame config value (below it shows looping it 16 times).

    sensorStop
    flushCfg
    dfeDataOutputMode 1
    channelCfg 15 5 0
    adcCfg 2 1
    adcbufCfg 0 1 0 1
    profileCfg 0 77 7 7 58 0 0 68 1 225 4500 0 0 30
    chirpCfg 0 0 0 0 0 0 0 1
    chirpCfg 1 1 0 0 0 0 0 4
    frameCfg 0 1 16 0 100 1 0
    guiMonitor 1 1 1 0 0 1
    cfarCfg 0 2 8 4 3 0 1200
    peakGrouping 1 1 1 1 224
    multiObjBeamForming 1 0.5
    calibDcRangeSig 0 -5 8 256
    sensorStart

    Regards,

    Vivek

  • 0 in reply to Vivek Dham
    TI__Guru 58035 points
    Hello,
    Did the above configuration work for you?

    Regards,
    Vivek