This makes rtt output work right when using `cargo run` in release mode.
Debug was already enabled for release builds in some of the examples but
not all.
- 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
exposing pac items kind of undermines the unstable-pac feature. directly
exposing register structure is also pretty inconvenient since the clock
switching code takes care of the src/aux difference in behavior, so a
user needn't really be forced to write down decomposed register values.
1458: rp: remove take!, add bind_interrupts! r=Dirbaio a=pennae
both of the uart interrupts now check a flag that only the dma rx path ever sets (and now unsets again on drop) to return early if it's not as they expect. this is ... not our preferred solution, but if bind_interrupts *must* allow mutiple handlers to be specified then this is the only way we can think of that doesn't break uarts.
Co-authored-by: pennae <github@quasiparticle.net>
It was intended to allow changing baudrate on shared spi/i2c. There's no
advantage in using it for PWM or PIO, and makes it less usable because you have to
have `embassy-embedded-hal` as a dep to use it.
execution wraps around after the end of instruction memory and wrapping
works with this, so we may as well allow program loading across this
boundary. could be useful for reusing chunks of instruction memory.
the many individual sets aren't very efficient, and almost no checks
were done to ensure that the configuration written to the hardware was
actually valid. this adresses both of these.
