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AWR1843: Vehicle Occupancy Detection demo for AWR1843 with CAN bus

saber ragab1
Expert 1350 points
Part Number: AWR1843
Other Parts Discussed in Thread: AWR1642BOOST,

Hello,

Where can I find Vehicle Occupancy Detection demo for AWR1843?

Is it possible to ignore the visualizer and replace it by CAN bus? to send if the zone is occupied or not over CAN network? so that all the detection will be done inside the target without matlab or visualizer

Thanks in advance

  • 0
    TI__Guru*** 148304 points
    Hi,

    The Vehicle Occupancy Detection (VOD) is supported on AWR1642BOOST EVM today.

    It is possible to run it on AWR1843BOOST EVM using 2 Tx. There is no VOD version that uses 3 Tx today.

    All detection is performed inside the target. Matlab is used only for object data display that is transferred to PC through UART

    Therefore there is no problem using CAN instead of the UART to transfer the object data

    One thing important to notice is that in the current demo the UART is used to send the configuration to the target. If it is desired not to use UART at all then the code would need to be modified to either hard code the configuration in the code or to send the configuration through CAN

    thank you
    Cesar
  • 0 in reply to Cesar
    Expert 1350 points

    Hi Cesar,

    Thanks for your reply.

    I have two questions:

    1- Do you have any example code how to hard code the configuration?

    2- How to extract the zone occupancy to send it over CAN only? not all the data like heat map and so on.

    Thanks in advance

  • 0 in reply to saber ragab1
    TI__Guru*** 148304 points

    Hi,

    The SRR demo lab hard codes the configuration. You would need to spend some time to understand the details of this code

    mmwave_automotive_toolbox_2_4_7\labs\lab0002_short_range_radar

    There are also some forum threads that discuss this topic

    Thank you
    Cesar

  • 0 in reply to Cesar
    Expert 1350 points

    Hello Cesar,

    I tried to integrate the CANFD with the UART and the GUI to send specific message over CAN in case of occupancy, So the processing takes too long and a deadline is missed so the MSS abort the execution. The potential root cause could be that the CAN transfer takes too long, So we need to change the Chirp configuration and frame periodicity.

    Could you please help us in this issue?

  • 0 in reply to saber ragab1
    TI__Guru*** 148304 points

    Hi,

    Usually the CAN-FD interface is much faster than UART.

    Are there any changes performed in the data transfer compared with the standard occupancy demo?

    thank you

    Cesar