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AWR1642BOOST: mmWave Demo visualizer issue

balasubramanian kanthasamy
Intellectual 370 points
Part Number: AWR1642BOOST

Hi,

We are using mmWave Demo visualizer tool for collecting point cloud data from AWR1642BOOST. When we use default profile config file from mmWave SDK demos, we can able to capture the data. But when we increase duty cycle from default to 50% (changing periodicity to 8.32ms), we are not able to capture point cloud data & getting the below error,

"dss frame processing deadline miss exception"...

Please help us to resolve this issue.

Thanks,

Bala

  • 0
    TI__Guru 69960 points
    Hi Bala,
    With that duty cycle it'll tough to get the demo working along with UART enable. As at every frame processing DSS application waits for object result data to be transferred over UART to PC only then it starts processing next frame data. In this scenario if you increase duty cycle which will effectively increase active frame (frame processing time) and reduced idle time (this duration after processing done UART transfer happens).
    So in this scenario as UART rate is slow, DSS will go in assert as last frame-result data is not out and new frame starts before that transfer done.

    To avoid this either user other interface as CAN/SPI which has higher transfer rate or provide much frame-idle time to fulfill object transfer time.

    Regards,
    Jitendra
  • 0 in reply to Jitendra Gupta
    Intellectual 370 points

    Hi Jitendra,

    Thanks for the details.

    1. If i want to run OOB demo and capture data via UART, what is the maximum duty cycle to be achieved?

    2. What are the parameters to be adjusted to get the data through UART even for higher duty cycle?

    Please provide your inputs on this.

    Thanks,

    Bala

  • 0 in reply to balasubramanian kanthasamy
    TI__Guru 69960 points
    You need to do the experiment to find out that no.
    Effectively application sends object over UART during idle-frame duration. 'frameCfg 0 1 32 0 "100" 1 0'
    As I told earlier with UART you may not have much flexibility to change the frame duty cycle, so better to switch to other interface CAN/SPI.

    Regards,
    Jitendra