calibration fails in Matlab

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n_qrtu
Posts: 17
Joined: Fri Feb 12, 2016 3:59 am

calibration fails in Matlab

Post by n_qrtu » Fri Dec 02, 2016 10:21 am

Hello,

I am using the burst mode transmission in Matlab (under Windows) between two bladeRF boards.

I am trying to calibrate from Matlab using the commands:
b.calibrate('ALL');
b.rx.corrections.auto_dc();

But when doing this, I see that the Rx systematically stops and the parameter act_count is always 14732. Do you know why this is happening? If I am not launching the calibration commands above, everything is fine.

Still from Matlab: I have noticed the same behavior even when I am not trying to calibrate: if I transmit a signal with alternating 0s and 1s (01010101 etc) at a sampling rate of 500 KHz, the Rx stops again, and act_count is always 14732. But if I transmit random 0's and 1's (so not alternating at every entry as before), everything is fine again.

Until now I used only the burst transmission mode (and the errors above came in this burst mode). Which brings me to another question: is there a way to transmit from Matlab continuously (streaming samples)?

Thank you very much for your help.

Best Regards,
Nicolae

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