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Is the inside used when passing the AWR1843 chirp data to the DSP after ADC conversion?

Hiroyuki Kanematu
Expert 2975 points
Other Parts Discussed in Thread: AWR1843

What is the role of passing the data after AD conversion to DPS?

I suspect HIL is doing it.

We appreciate your opinions.

  • 0
    TI__Mastermind 31680 points

    Hello User,

    I'm not sure if I got your question right. 

    Are you trying to understand the relevance of having DSP in the AWR1843 mmWave sensor? 

    The data in the ADC buffer is just the raw ADC data(chirp data). To make sense out of that data, you would need process the data in order to estimate the range or velocity. Now you can either get the raw ADC data out using some data capture tools (like DCA1000) and post process it using MATLAB or other software OR you could use the internal DSP. The on-chip DSP provides more flexibility and allows for software integration of high-level algorithms, such as object tracking and classification. 

    Hence that ultimately depends on your use case. 

    Regards,

    Ishita

  • 0 in reply to Ishita Kochar
    Expert 2975 points
    Hello, User.
    Until yesterday, I didn't know how to handle the chirp waves measured by the AWR1843.
    After doing a lot of research yesterday, I will write down what I want to ask again.
    What I currently want to know is that after AD conversion of the measurement data, the data is transmitted to the L3 memory of the DSP subsystem using EDMA, but what is used for the communication method?
    I'm sorry to make the story confusing.
    Hiroyuki
  • 0 in reply to Hiroyuki Kanematu
    TI__Mastermind 31680 points

    Hello Hiroyuki,

    I see you raised a similar concern in the below thread : 

    AWR1843: Data communication method - Sensors forum - Sensors - TI E2E support forums 

    Please let me know if that answer resolved your concern. Let me know if you need more clarification. 

    Regards,

    Ishita