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IWRL6432AOPEVM: Chirp Configuration of Level Sensing

Part Number: IWRL6432AOPEVM
Other Parts Discussed in Thread: IWRL6432

Tool/software:

Hi Experts,

I am dealing with the level sensing application using IWRL6432 AOP. Below are what I have done:

  1. I followed the steps in the level sensing user guide, using the IWRL6432 AOP device.
  2. The prebuilt FW is fine and with the default configuration “high_accuracy_demo_xwrl64xx” the sensor is running well. The results can be shown in the industrial visualizer. high_accuracy_demo_xwrl64xx.cfg
  3. Then, I saw the maximum adc sample number is 1024, and I try to adapt this from the default configurations. Attached is the configuration from me “high_accuracy_demo_xwrl64xx_chia”. high_accuracy_demo_xwrl64xx_chia.cfg
  4. Different to the default configuration “high_accuracy_demo_xwrl64xx”, I enlarge the adc sample number from 512 to 1024, but it shows error of -3110.
  5. I investigate this in the mmw_error.h and mmwave.h and find that it is the problem of frame configurations, so I enlarge the frame timing and decrease the antenna FFT size in sigProcChainCfg. After this the error of -3110 is gone.

     

  1. Fortunately, I am able to have the output results of this configurations, but it still shows errors in the visualizer.

      

 

My questions are:

  • Since the configuration is okay, where does this error come from? How can I solve it?
  • I would like to confirm that the maximum detected range of 30 meters in the configuration “high_accuracy_demo_xwrl64xx_chia“. Since 1024 points of adc is the maximum number, and I would like to have 30 meters of detected range, does that mean the largest BW is limited to 2 GHz in this configuration?

 

Thanks!

 

Best regards,

ChiaChih