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Original question:

AWR1443: mmWave Sensors Forum: problems of TSW1400&awr1443 DATA capture

AWR1243 Waveform configuration

user5367629
Prodigy 80 points
Other Parts Discussed in Thread: AWR1243

Hello,

I  come across a problem when I make the waveform configuration using mmWaveStudio. We use DCA1000&awr1243 to transmit and receive the wave.How to transmit the waveform in  the figure below?

thank you!

  • 0
    TI__Guru 69960 points
    Hello,
    First block of waveform, it is easy to create, where you need to select chirpConfig with selection of Tx0/1/2 with profile0
    chirpConfig0 : profileID=0, startChirp = 0, endChirp=0, TxEnable=Tx0.
    chirpConfig1 : profileID=0, startChirp = 1, endChirp=1, TxEnable=Tx1.
    chirpConfig2 : profileID=0, startChirp = 2, endChirp=2, TxEnable=Tx2.

    and at the Frame configuration select Start-Chirp=0, end-Chirp=2, noOfLoop=128.

    Now coming to your configuration, as you have last 16 chirp connected to single profile+Tx2, so you need to configure all 400 chirps (128*3+16) due to non-regularity

    chirpConfig0 : profileID=0, startChirp = 0, endChirp=0, TxEnable=Tx0.
    chirpConfig1 : profileID=0, startChirp = 1, endChirp=1, TxEnable=Tx1.
    chirpConfig2 : profileID=0, startChirp = 2, endChirp=2, TxEnable=Tx2.
    chirpConfig3 : profileID=0, startChirp = 3, endChirp=3, TxEnable=Tx0.
    chirpConfig4 : profileID=0, startChirp = 4, endChirp=4, TxEnable=Tx1.
    chirpConfig5 : profileID=0, startChirp = 5, endChirp=5, TxEnable=Tx2.
    ...
    ...
    chirpConfig381: profileID=0, startChirp = 381, endChirp=381, TxEnable=Tx0.
    chirpConfig382: profileID=0, startChirp = 382, endChirp=382, TxEnable=Tx1.
    chirpConfig383 : profileID=0, startChirp = 383, endChirp=383, TxEnable=Tx2.
    chirpConfig384 : profileID=1, startChirp = 384, endChirp=399, TxEnable=Tx2. [For last 16 chirps]

    Frame configuration select Start-Chirp=0, end-Chirp=399, noOfLoop=1.



    Regards,
    Jitendra
  • 0 in reply to Jitendra Gupta
    Prodigy 80 points

    Hello Jitendra,

    I t  is hard to create the waveform in SensorConfig in your way because I need to  configure the chirps for 400 times.It will take a great deal of time and will go wrong easily.Is there any easy way?

    thanks.

  • 0 in reply to user5367629
    TI__Genius 15005 points

    Hi,

    You can use the advanced frame configuration API (please refer to AWR_ADVANCED_FRAME_CONF_SB in the Interface Control Document) to configure two subframes. The first subframe will contain 3 chirps with profile 0 starting at chirp 0, looped 128 times. The second subframe will contain 1 chirp (say chirp 4) with profile 1, looped 16 times.

    Please note that a minimum inter-subframe time of 100 us will be needed.

    Best Regards,

    Anand