When the ethernet LED on a Stemlab125-14 blinks, this results in a change in DAC voltage of the order of ~0.5 mV. We have confirmed this correlation with a photodetector placed near the ethernet port LED. I believe the linux OS ethernet driver is responsible for this blinking. Is there a way to disable it to get the best possible noise performance out of a redpitaya?
See also https://github.com/RedPitaya/RedPitaya/issues/205 for the same text in a github issue, since it's not clear to me where to ask this.
Just about everything about Red Pitaya
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