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Merge #1465

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1465: rp: continue clock rework r=Dirbaio a=pennae

vastly reduce the code size of initial clock config (over 700 bytes saved!), at the cost of about 48 bytes of ram used to store the frequencies of all clocks in the system. also stop exporting unstable pac items for clock config, fix a few settings that were out of spec, and add missing features (most notably gpin source information).

Co-authored-by: pennae <github@quasiparticle.net>
This commit is contained in:
bors[bot] 2023-05-17 22:20:44 +00:00 committed by GitHub
commit 4b303949bf
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3 changed files with 391 additions and 332 deletions
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712
embassy-rp/src/clocks.rs
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File diff suppressed because it is too large Load Diff

7
embassy-rp/src/rtc/mod.rs
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@ -26,12 +26,7 @@ impl<'d, T: Instance> RealTimeClock<'d, T> {
into_ref!(inner);
// Set the RTC divider
unsafe {
inner
.regs()
.clkdiv_m1()
.write(|w| w.set_clkdiv_m1(clk_rtc_freq() as u16 - 1))
};
unsafe { inner.regs().clkdiv_m1().write(|w| w.set_clkdiv_m1(clk_rtc_freq() - 1)) };
let mut result = Self { inner };
result.set_leap_year_check(true); // should be on by default, make sure this is the case.

4
examples/rp/src/bin/gpout.rs
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@ -17,14 +17,14 @@ async fn main(_spawner: Spawner) {
gpout3.enable();
loop {
gpout3.set_src(clocks::GpoutSrc::CLK_SYS);
gpout3.set_src(clocks::GpoutSrc::Sys);
info!(
"Pin 25 is now outputing CLK_SYS/1000, should be toggling at {}",
gpout3.get_freq()
);
Timer::after(Duration::from_secs(2)).await;
gpout3.set_src(clocks::GpoutSrc::CLK_REF);
gpout3.set_src(clocks::GpoutSrc::Ref);
info!(
"Pin 25 is now outputing CLK_REF/1000, should be toggling at {}",
gpout3.get_freq()