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SoraURadioSetSampleRate,this function is not useful? RRS feed

  • Question

  • 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!

    Friday, March 4, 2011 7:44 AM

Answers

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

    You may resample in software.

    Thanks,

    - Kun

    • Marked as answer by Sen Xiang Thursday, March 31, 2011 8:52 AM
    Tuesday, March 8, 2011 3:21 AM

All replies

  • It depends on your firmware, which might not support sample rate configuration.
    Sen Xiang (项森)
    Monday, March 7, 2011 3:08 PM
  • 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 .

    Monday, March 7, 2011 3:32 PM
  • No. You cannot change the sampling rate on this daughterboard.

    You may resample in software.

    Thanks,

    - Kun

    • Marked as answer by Sen Xiang Thursday, March 31, 2011 8:52 AM
    Tuesday, March 8, 2011 3:21 AM
  • 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?

    Tuesday, March 8, 2011 6:36 AM
  • right. they are the same, 44Mhz.
    Thursday, March 10, 2011 9:43 AM
  • Thank you!
    Friday, March 11, 2011 12:49 AM