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IWR1443BOOST: TIDEP-0091:level sensing demo: Distance Outputs

Part Number: IWR1443BOOST

Hello,

I recently got the TIDEP-0091 demo running on the MSP432 and the IWR1443. I can power on and off the IWR1443 just fine. However, whenever I try to take a single or continuous measurement, no data is being shown about the distances in the terminal window. It gets stuck after I enter a measurement command and does not allow me to enter another command. See picture below.

I added 0 ohm resistor R102 and R164, like the instructions mentioned to do. So I'm not sure what the problem is.

Thanks,

Kyle

  • Have you uncommented the "#define REPORT_IR14_TIME_MEASUREMENTS" line in the demo_common.h file under the msp432 project folder?


    Cheers,
    Akash
  • In reply to Akash Gondalia:

    Akash,

    I have tried uncommenting that line and then rebuilding both demos for IWR1443 and MSP432. After that, I ran the demo and it printed out "measurement timeout" when I tried to take a measurement. But it still doesn't print out the distance data when I have that line uncommented which is weird.

    Thanks,
    Kyle
  • In reply to Akash Gondalia:

    Also, this is the output I get when I uncomment the "#define REPORT_IR14_TIME_MEASUREMENTS" line and try to take a measurement.

  • In reply to Kyle Henderson:

    Hi Kyle,

    Can you confirm you've made the correct board modifications described in the getting started guide?


    Cheers,
    Akash
  • In reply to Akash Gondalia:

    Hi Akash,

    Yes I can. I was looking into the issue and found a few things, and I have a few questions.

    1) I never added R164, so I tried adding it. But it is very tough since the resistor is so small. In the getting started guide, it mentions that R164 is optional. So do I need R164 if I don't care about the timing measurements? I am only looking for distance outputs.

    2) I have the "#define REPORT_IR14_TIME_MEASUREMENTS" line commented out in the MSP432 code. Is there anywhere else I need to comment it out? The other lines that I found that contain "REPORT_IR14_TIME_MEASUREMENTS" are #ifdef statements, so I wouldn't think those need to be commented out, but I'm not sure.

    3) In the guide, it states to add 0 ohm resistor R162. I added this one, and I am able to turn the IWR1443 on and off. However, in the picture on the guide, R9 is also pointed to, but never mentioned. Do I need to add a 0 ohm resistor to R9 as well?

    4) When I mated the MSP432 and IWR1443, then removed the MSP432, it pulled off a trace on the IWR1443 on J4. I have included a picture. Will this be a problem with getting the distance outputs? I saw on the schematic that the trace connects to SOP0, so i'm hoping it won't affect the functioning of the level sense demo. 

    Thanks & Regards,

    Kyle