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General • Re: Latest Getting Started document removes SWD instructions

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My understanding is GPIO on a Pi 5 is connected over PCIe and has too much latency to efficiently debug a Pico. As a result the all-in-one solution never worked well with a Pi 5. See, for example

viewtopic.php?p=2185477#p2185477
It's more the fact that libgpiod requires a syscall for each and every pin state transition, as there's no way to batch operations together. Even with ideal latency you end up with a ~1MHz SWCLK.
Will an improved software be forthcoming so the Pi 5 can be used for all-in-one Pico development?

Statistics: Posted by ejolson — Sun Aug 18, 2024 2:14 pm



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