Pat Pannuto

**Manufacturing Concerns** - [ ] Stop/Cream apertures for custom pad shape for `X2`, `X3` (`9HT12-32.768KDZY-T`) do not match metal layer. - [ ] Consider thicker stackup - [ ] Confirm...

Add flux tool, and flux specs to verify ring buffer implementation

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### Pull Request Overview This pull request replaces #4585 by squashing various histories and merging @enjhnsn2's latest specs. This is now a non-draft PR, and is ready for more comprehensive...

ci: use upstream qemu instead of building

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All the major platforms we need are in release versions now, so no need to build from source any more. ### Pull Request Overview This updates the CI infrastructure to...

chips: rp* family: Replace `resolve_dependencies` with rp component + finalize

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The [rp2040 chip has a `resolve_dependencies` method](https://github.com/tock/tock/blob/master/chips/rp2040/src/chip.rs#L163) which handles circular references, and the [rp2350 copies the approach](https://github.com/tock/tock/pull/4416/files#r2237980224). The results in a lot of `OptionalCell`s that don't really need to be...

Compile-tested only, fairly straight conversion. There's a mild deviation from the style guide with the `wait_for_generic_command` instead of 6 different `wait_for_[set|clear|...]` methods. It mirrors how the driver itself is implemented,...

Enforce minimum compiler version and use now-standard [[nodiscard]] in favor of compiler attribute

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The replaces the custom compiler attribute with the directive standardized in C23. It looks like most major toolchains implemented this in 2020 (easy done I think since it was already...