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Advanced users • Re: RP1 PIO DMA speed on Raspberry Pi 5 unexpectedly slow

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I was just trying this today too and got similar results. I'm sending 16-bit samples and maxed out at about 5.4 Ms/s, with lots of jitter and interruptions. I was hoping for 13.5 Ms/s.

Anyone familiar with the hardware know if this a hard limit or can it be improved?

Statistics: Posted by fsphil — Sat Aug 02, 2025 10:05 pm



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