1372: rp: add division intrinsics r=Dirbaio a=pennae
rp2040-hal adds division intrinsics using the hardware divider unit in the SIO, as does the pico-sdk itself. using the hardware is faster than the compiler_rt implementations, and more compact too.
since embassy does not expose the hardware divider in any way (yet?) we could go even further an remove the state-saving code rp2040-hal needs, but that doesn't seem to be worth it.
Co-authored-by: pennae <github@quasiparticle.net>
rp2040-hal adds division intrinsics using the hardware divider unit in
the SIO, as does the pico-sdk itself. using the hardware is faster than
the compiler_rt implementations, and more compact too.
1360: stm32/rcc: add i2s pll on some f4 micros r=Dirbaio a=xoviat
Adds the i2s pll on some f4 micros.
1361: Executor: Replace unnecessary atomics in runqueue r=Dirbaio a=GrantM11235
Only the head pointer needs to be atomic. The `RunQueueItem` pointers are only loaded and stored, and never concurrently
Co-authored-by: xoviat <xoviat@users.noreply.github.com>
Co-authored-by: Grant Miller <GrantM11235@gmail.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.
1359: Make Hertz constructors `const` r=Dirbaio a=sgoll
This PR makes `Hertz` associated functions `hz()`, `khz()`, `mhz()` and their unassociated variants `const`, allowing `Hertz` to be used more easily in constant values:
```rust
const FREQ1: Hertz = Hertz::khz(120);
const FREQ2: Hertz = mhz(1);
```
This follows the pattern used for similar types such as `Duration` and `Instant`, from `embassy-time/src/duration.rs` and `embassy-time/src/instant.rs`, respectively.
ba8cafb20c/embassy-time/src/duration.rs (L44-L47)ba8cafb20c/embassy-time/src/instant.rs (L29-L34)
Co-authored-by: Sebastian Goll <sebastian.goll@gmx.de>
1358: Fix typo in derivation of PLLP divisor for STM32F2 family r=Dirbaio a=sgoll
This PR fixes a typo in the derivation of the PLLP divisor for the STM32F2 family.
Fixes#1357
Co-authored-by: Sebastian Goll <sebastian.goll@gmx.de>
1353: Add empty test binary for riscv r=Dirbaio a=royb3
As discussed with `@Dirbaio,` this empty test binary should cause a build to fail when it is not possible to build or link a riscv binary.
Co-authored-by: Roy Buitenhuis <roy.buitenhuis@technolution.nl>
1352: re-export main_riscv macro as main for riscv arch. r=Dirbaio a=royb3
embassy_executor::main was missing for riscv targets.
Co-authored-by: Roy Buitenhuis <roy.buitenhuis@technolution.nl>
