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rp/pio: ensure PADS IE=1 which is not the default in rp235x.

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Fixes #3476
This commit is contained in:
Dario Nieuwenhuis 2024-10-31 21:26:40 +01:00
parent 93dd21042c
commit 3225848bd2
1 changed files with 10 additions and 2 deletions
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12
embassy-rp/src/pio/mod.rs
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@ -1054,9 +1054,17 @@ impl<'d, PIO: Instance> Common<'d, PIO> {
pub fn make_pio_pin(&mut self, pin: impl Peripheral<P = impl PioPin + 'd> + 'd) -> Pin<'d, PIO> {
into_ref!(pin);
pin.gpio().ctrl().write(|w| w.set_funcsel(PIO::FUNCSEL as _));
#[cfg(feature = "_rp235x")]
pin.pad_ctrl().modify(|w| {
pin.pad_ctrl().write(|w| {
#[cfg(feature = "_rp235x")]
w.set_iso(false);
w.set_schmitt(true);
w.set_slewfast(false);
// TODO rp235x errata E9 recommends to not enable IE if we're not
// going to use input. Maybe add an API for the user to enable/disable this?
w.set_ie(true);
w.set_od(false);
w.set_pue(false);
w.set_pde(false);
});
// we can be relaxed about this because we're &mut here and nothing is cached
PIO::state().used_pins.fetch_or(1 << pin.pin_bank(), Ordering::Relaxed);