Hi all, I am using PYNQ 2.7.0 on the RFSoC 4x2. I am having a problem where changing the gain for the DAC output does not produce the amplitudes in the waveform that I would expect. Specifically, slight increases in the gain cause the amplitude of the sampled waveform to increase then decrease, wh…

Hi @marioruiz This worked! I’ve since tested other values for the gain, and the amplitude of the sines I’m measuring are all as expected. Thanks! Cameron

Unexpected DAC amplitudes when varying gain

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marioruiz June 12, 2025, 7:35am 2

Hi @cameronpoe,

Can you try the fix suggested in this PR? Update transmitter.py by eric0chang · Pull Request #39 · Xilinx/RFSoC-PYNQ · GitHub

Mario

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Unexpected DAC amplitudes when varying gain

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