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AWR1843BOOST: AWR1843BOOST

Feras Abushakra
Prodigy 50 points
Part Number: AWR1843BOOST


Hello,

I have one xWR1843 with the DCA1000 data capture board.

1) First thing I want to generate the signal from the transmitter for a specific period (like 10 min). I see that that signal is generated only when I click on the trigger button in the mm wave studio. I need to operate the chipset as FMCW radar for a time period to collect the data.

2) When I will collect this data for long time, is it still installed in the same binary file (adc_data.bin). Is there a limitation on the size of the binary file.

3) How much is the output power that delivered to each antenna? (input power for the Tx array).

4) When I will start to collect the raw data, I need to save that at the SD card at the DCA 1000 board, can you please provide me with some details how to do it and if the data type and arrange change comparing to the binary file that is at the host PC.

Thanks!

  • 0
    TI__Mastermind 31680 points

    Hello Feras,

    Please find the answers for your queries below:

    1) Yes it is correct, as soon as you start or "trigger" the frames, the AWR device will start the transmission and will continue to do so until you "stop" the frames. You can capture data for as long as you want using DCA1000 capture card.

    2)Please refer to the below FAQ:

    https://e2e.ti.com/support/sensors/f/1023/t/795067?-FAQ-DCA1000EVM-ADC-Data-Capture-files-size-larger-than-1-GB 

    3) If you refer to the "SensorConfig" Tab in mmWave studio, in profile configuration, there is a TX backoff setting. This is used to reduce the Tx power from the max value. Default (i.e 0dB backoff) gives around 12dBm Tx O/P. Additionally, there is an antenna gain of 8-9 dBi.  Using the backoff of 1dB, for example, reduces the TX o/p by 1dB and so on. If you are using 0dB backoff then that is the max o/p you can get.

    4) Please refer to the below Application note:

    https://www.ti.com/lit/an/swra555a/swra555a.pdf?ts=1604649213204

    Furthermore, you can also refer to Chapter 24 "Format of Raw captured Data" in mmWave_studio_user_guide.pdf

    Hope the information was relevant and comprehensive. Thankyou for using mmWave Devices!

    Regards,

    Ishita