SoraURadioSetSampleRate,this function is not useful?

Answered SoraURadioSetSampleRate,this function is not useful?

  • 4 marca 2011 07:44
     
     

    In umx_sample.cpp, SoraURadioSetSampleRate(TARGET_RADIO, 40) means that the sampling rate is 40MHz.But when I set the sanpling rate to 20,I can't see any changes of the receiving I/Q data.So,I doubt that the function is not useful.Maybe I don't know how to use this function or the sampling rate of radio front end is not changed.Can you answer my question?

    thank you very much!

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  • 7 marca 2011 15:08
    Moderator
     
     
    It depends on your firmware, which might not support sample rate configuration.
    Sen Xiang (项森)
  • 7 marca 2011 15:32
     
     

    Hello,Sen Xiang,thank you for your reply.

    My firmware is USRP and the daughterboard is XCVR2450,whether this firmware can support sanmple rate configuration or not .

  • 8 marca 2011 03:21
    Właściciel
     
     Odpowiedz

    No. You cannot change the sampling rate on this daughterboard.

    You may resample in software.

    Thanks,

    - Kun

  • 8 marca 2011 06:36
     
     

    Thank you for your reply!

    Can you tell me the sample rate of DAC chip in USRP? I guess it is the same to ADC sample rate?

  • 10 marca 2011 09:43
    Właściciel
     
     
    right. they are the same, 44Mhz.
  • 11 marca 2011 00:49
     
     
    Thank you!