  >Basically PIO smells like a wart to me. I genuinely don't know who wants it. Regular hackers aren't sophisticated enough to use it productively and the snobby nerds have better options.

what are you blathering on about, sir?

driving complex displays with no spu use: https://dmitry.gr/?r=06.%20Thoughts&proj=09.ComplexPioMachin... (my work)

pretending to be memory stick and sd card at dozens of mhz as a slave to a sync bus (my work)

ethernet: https://github.com/kingyoPiyo/Pico-10BASE-T (not my work)

68k bus slave (my work)

usb host https://github.com/sekigon-gonnoc/Pico-PIO-USB (not my work)

all on a $1 chip

▲ ajross 3 hours ago | parent [-]

> what are you blathering on about, sir?

Please don't.

I mean, I applaud your work. But let's also be honest (in the "tough love" sense): those are all toys with significant limitations that preclude anyone shipping any of them on an actual device to an actual consumer. I mean, your SOC (maybe a $2 one) surely already includes a SPI master and USB host!

Actual interconnects that solve real market problems have big boring spec books and competing implementations and silicon vendors. The application for PIO is basically limited to "I have to connect to this crazy old junk and no one makes the part I'd otherwise need".

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Gracana 2 hours ago | parent | next [-]

Having dealt with the errata sheets for microcontrollers with all those fancy IO devices that solve real marketing problems etc, I'd kill to fix those problems with a software upgrade.

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dmitrygr 44 minutes ago | parent | prev [-]

if you find a SoC for $1 that has 2 Ethernet ports, and a usb host on it, while also having two cores and supporting 32MB of RAM you'll surprise me. rp2350 does all of the above for $1

	▲	duskwuff 11 minutes ago \| parent [-]
		Have you tested out the 2x PSRAM configuration; if so, have you written anything up about it? :) I've thought about a configuration like that myself but haven't committed to any hardware yet.