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this doesn't cover every `struct` & co. in `embassy-rp`, but at least it
adds those needed for `Adc` and `adc::Channel`.
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Remove Peripheral trait, rename PeripheralRef->Peri.
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This commit rearranges the Adc::wait_for_ready function to make sure
that wakers are registered before the interrupt is enabled, and keeps
enabling the interrupt until the ADC is ready
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Examples have been run, but there is not yet a test suite.
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Enable missing doc warnings.
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with uniform treatment of adc inputs it's easy enough to add a new
sampling method. dma sampling only supports one channel at the moment,
though round-robin sampling would be a simple extension (probably a new
trait that's implemented for Channel and &[Channel]). continuous dma as
proposed in #1608 also isn't done here, we'd expect that to be a
compound dma::Channel that internally splits a buffer in half and
dispatches callbacks or something like that.
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this lets us treat pins and the temperature sensor uniformly using the
same interface. uniformity in turn lets us add more adc features without
combinatorial explosion of methods and types needed to handle them all.
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we're not using it, and actually using it is more trouble than it's
worth. remove the false assurance instead.
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this is more general than AdcPin and can also cover the temperature
sensor.
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internal use only. (#1700)
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the adc constantly pulls a small but significant amount of current while
the hardware is enabled. this can have quite an effect on sleeping
devices that also use the adc.
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- don't require an irq binding for blocking-only adc
- abstract adc pins into an AnyPin like interface, erasing the actual
peripheral type at runtime.
- add pull-up/pull-down functions for adc pins
- add a test (mostly a copy of the example, to be honest)
- configure adc pads according to datasheet
- report conversion errors (although they seem exceedingly rare?)
- drop embedded-hal interfaces. embedded-hal channels can do neither
AnyPin nor pullup/pulldown without encoding both into the type
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- Move typelevel interrupts to a special-purpose mod: `embassy_xx::interrupt::typelevel`.
- Reexport the PAC interrupt enum in `embassy_xx::interrupt`.
This has a few advantages:
- The `embassy_xx::interrupt` module is now more "standard".
- It works with `cortex-m` functions for manipulating interrupts, for example.
- It works with RTIC.
- the interrupt enum allows holding value that can be "any interrupt at runtime", this can't be done with typelevel irqs.
- When "const-generics on enums" is stable, we can remove the typelevel interrupts without disruptive changes to `embassy_xx::interrupt`.
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Signed-off-by: Lachezar Lechev <[email protected]>
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