Timestamp discontinuity after calibrate RX

Projects LimeSDR
1

It seems that each time I calibrate RX, there’s a discontinuity in the timestamps of ~5 additional ms.

This is pretty constant and calling calibration 10 times give ~ +50ms.

  1. Is this expected? I don’t know if it’s related to this.
  2. As my app needs to change RX frequency, I expect I need to call calibrate RX each time I change frequency?
2

During calibrations, internally a lot of settings are being changed, such as sampling rate which affects FPGA work. So yes, it is expected that during calibration no valid samples will be produced.

3

Thanks. So if I need to switch for example between 3 frequencies over time while keeping timestamp continuity, I should first run the calibration on each frequency, keep the tuning and calibration results, then reuse those tuning and calibration values to change frequency (using this code), right?

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4

yes

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5

Thanks a lot. It all makes sense now.