The GPIO engine is a simple state machine that can be programmed to implement high-speed data transfer, digital video output, and many other purposes. It is one of the best and most innovative features on the Pico.
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JackbyDev@programming.dev 1 month agoWhichnoart of the pico are you referring to specifically? Never heard the term “GPIO engine” before. Is that sort of like the USB stack but for GPIO?
profdc9@lemmy.world 1 month ago
phlegmy@sh.itjust.works 1 month ago
I think they meant PIO (programmable IO). It’s like a small processor tied to some of the IO pins. There’s a very small set of instructions and some state machines.
It can be used to implement your own IO protocols without dealing with the issues that come with bit-banging from the cpu.