They're heavily spamming logs for HIL tests, and I don't believe
they're valuable now that the thing they helped debug in their young
age is now solid and mature.
we'll need access to the pin io bank registers for an upcoming fix, and
having both `io` and `io_bank` or similar can get confusing quickly.
rename `io` to `gpio` to avoid this, and also match the type while there.
- 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`.
this reports errors at the same location the blocking uart would, which
works out to being mostly exact (except in the case of overruns, where
one extra character is dropped). this is actually easier than going
nuclear in the case of errors and nuking both the buffer contents and
the rx fifo, both of which are things we'd have to do in addition to
what's added here, and neither are needed for correctness.
sending break conditions is necessary to implement some protocols, and
the hardware supports this natively. we do have to make sure that we
don't assert a break condition while the uart is busy though, otherwise
the break may be inserted before the last character in the tx fifo.
1378: Add ability to invert UART pins, take 2 r=Dirbaio a=jakewins
Same PR as before, except this now works :)
There was a minor hiccup in the UartRx code where the rx pin got passed as the tx argument, so the invert settings didn't get applied. With this fix, my local setup at least is happily reading inverted uart data.
Co-authored-by: Jacob Davis-Hansson <jake@davis-hansson.com>
This is useful in some cases where the surrounding circuit
for some reason inverts the UART signal, for instance if you're talking
to a device via an optocoupler.
1318: rp: Allow zero len reads for buffered uart r=Dirbaio a=timokroeger
Prevents the read methods from getting stuck forever.
cc `@MathiasKoch` can you test if this fixes the problem you described in the chat?
Co-authored-by: Timo Kröger <timokroeger93@gmail.com>
