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Original question:

IWR6843ISK-ODS: What people counting labs are available to use with IWR6843 ODS ES 2.0?

IWR6843ISK-ODS: IWR6843 ODS ES 2.0 sensor sending bad packets often

radha
Intellectual 905 points
Part Number: IWR6843ISK-ODS
Other Parts Discussed in Thread: IWR6843

Hi,

I'm working on 3D demo from ITB 4.1.0, sdk 3.3.3 with the new IWR6843 ODS ES 2.0 sensor. I see that it is sending bad packets often and it stays for a couple of seconds. I examined the packet header and the magic bytes using the python gui code. I see that it often gets bad data but ignores it. Is this normal?

Thanks,

radha.

  • 0
    TI__Guru 50240 points

    Hi Radha,

    I've asked an expert to look into this and we should have an answer for you sometime next week.

     

    Cheers,

    Akash

  • 0 in reply to Akash Gondalia
    TI__Mastermind 28055 points

    Hi Radha,

    This demo uses a higher output baudrate (1843200) than other demos (it is expected to send more points). However, you may try limiting the baudrate - look for the logging baud rate in the MSS demo.  You will also have to find the location in the gui source to lower the baudrate here as well to match it. You will find this in oob_parser.py, look for DATA COM. 

    I recommend new Baud rate of 921600, as this is used in the other demos without issue.

    It is possible that the UART send time will overrun the frame time, which will cause the device to hang.  If this is the case, try increasing frame time to 60 ms.

    Regards,

    Justin