alt Hacker NewsPIO is unsuitable for FPGA impls, that's what the article says.
> If you’re thinking about using it in an FPGA, you’d be better off skipping the PIO and just implementing whatever peripherals you want directly using RTL.
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dmitrygr • today at 5:56 PM
Yes, my point is that the article throws a lot of shade at PIO while the real issue is that the author is trying to shove a third-party FPGA reimpl of it into a place it never belonged. PIO itself is a perfectly good design for what it does and where it does it.
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Yea, I think the point is that if you’re implementing in FPGA in any case, a dedicated state machine is going to be a lot smaller than PIO or BIO. But if you’re making a standard part with hardcoded functionality then BIO is going to be smaller than PIO.