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DCA1000EVM: How to realize playback (hardware in loop, HIL) mode with AWR1642 + DCA1000EVM?

John Chong1
Prodigy 30 points
Part Number: DCA1000EVM
Other Parts Discussed in Thread: AWR1642,

Hi,

Our goal is to use AWR1642 + DCA1000 EVM without mmWave Studio to record raw radar data and then playback the data through DCA1000 EVM to AWR1642.

What we have done:

1. For recording raw data, I managed to receive raw data in hardware configuration mode through Ethernet by referring to this post https://e2e.ti.com/support/sensors/f/1023/t/697473.

2. For raw data playback (or HIL), it is written in this technical document http://www.ti.com/lit/ug/swru520c/swru520c.pdf 

And so we did these changes to the original ADC buffer code,

I tried flashing the AWR1642 firmware with the above ADC buffer changes, switched DCA1000 from LVDS _Capture to DMM_playback, sending raw data with UDP to 192.168.33.30 with port 4098, pressing capture_start button on DCA1000 but nothing happened.

My question is what do I have to do next? Or what other parts of code or command that I lack to make playback work?

Please advice. Thank you.

Best regards,

John

  • 0
    TI__Guru 69500 points

    Hi John,

    Currently, DCA1000EVM doesn't have HIL feature where it can write back raw data to AWR device over LVDS interface.

    Regards,

    Jitendra

  • 0 in reply to Jitendra Gupta
    Prodigy 30 points

    Hi Jitendra,

    I think the raw data is written back to AWR device through DMM interface?

    Anyway, is there a timing for the release of DCA1000EVM playback(HIL) feature?

    Or is there any support/guide to what specific modification DCA1000EVM needed to make it work?

    Thanks for the reply.

    Best regards,

    John

  • 0 in reply to John Chong1
    TI__Guru 58035 points

    Hello John,

    As of now we do not plan to have an FPGA implementation on the DCA1000 to feedback the ADC data via DMM interface. Could you let us know the specific need for this? 

    Regards,

    Vivek 

  • 0 in reply to Vivek Dham
    Prodigy 30 points

    Hi Vivek,

    We are developing radar with the AWR1642 chip and we wanted to improve radar algorithm by replaying raw data to AWR device for specific captured road scenario.

    I have two questions,

    1. So no playback feature for DCA1000 right, can you suggest other way to do raw data feedback to AWR1642? Perhaps by using another MCU?

    2. Suppose we now have a way to playback and we edited the ADC buffer source in AWR1642 for DMM access as above. Do we still need to make changes for other settings? Could you provide AWR1642 DMM playback example code (not the PC part but the SOC part)?

    Regards,

    John

  • 0 in reply to John Chong1
    TI__Guru 58035 points

    Hello John,

    There are not much setting needed in the SoC application side, mostly the DMM interface pin muxing needs to be done. Most of the logic is in the source side that is sending the DMM interface patterns. Basically all the signaling that the front end does and the chirp timing information need to be emulated over the DMM interface .

    Regards,

    vivek