max/embassy
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Makes it possible to use the ADC with different analog pins

Browse Source
This commit is contained in:
Ulf Lilleengen 2021-05-21 13:06:28 +02:00
parent b5cdd296dd
commit f6cac6944c
1 changed files with 14 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
embassy-nrf/src/saadc.rs
View File

@ -30,9 +30,9 @@ pub use saadc::{
pub enum Error {}
/// One-shot saadc. Continuous sample mode TODO.
pub struct OneShot<'d, T: PositivePin> {
pub struct OneShot<'d> {
irq: interrupt::SAADC,
phantom: PhantomData<(&'d mut peripherals::SAADC, &'d mut T)>,
phantom: PhantomData<(&'d mut peripherals::SAADC)>,
}
/// Used to configure the SAADC peripheral.
@ -66,14 +66,13 @@ impl Default for Config {
}
}
impl<'d, T: PositivePin> OneShot<'d, T> {
impl<'d> OneShot<'d> {
pub fn new(
_saadc: impl Unborrow<Target = peripherals::SAADC> + 'd,
irq: impl Unborrow<Target = interrupt::SAADC> + 'd,
positive_pin: impl Unborrow<Target = T> + 'd,
config: Config,
) -> Self {
unborrow!(irq, positive_pin);
unborrow!(irq);
let r = unsafe { &*SAADC::ptr() };
@ -106,11 +105,6 @@ impl<'d, T: PositivePin> OneShot<'d, T> {
w
});
// Set positive channel
r.ch[0]
.pselp
.write(|w| w.pselp().variant(positive_pin.channel()));
// Disable all events interrupts
r.intenclr.write(|w| unsafe { w.bits(0x003F_FFFF) });
@ -125,7 +119,7 @@ impl<'d, T: PositivePin> OneShot<'d, T> {
}
}
impl<'d, T: PositivePin> Drop for OneShot<'d, T> {
impl<'d> Drop for OneShot<'d> {
fn drop(&mut self) {
let r = self.regs();
r.enable.write(|w| w.enable().disabled());
@ -133,21 +127,25 @@ impl<'d, T: PositivePin> Drop for OneShot<'d, T> {
}
pub trait Sample {
type SampleFuture<'a>: Future<Output = i16> + 'a
type SampleFuture<'a, T>: Future<Output = i16> + 'a
where
T: PositivePin + 'a,
Self: 'a;
fn sample<'a>(&'a mut self) -> Self::SampleFuture<'a>;
fn sample<'a, T: PositivePin>(&'a mut self, pin: &'a T) -> Self::SampleFuture<'a, T>;
}
impl<'d, T: PositivePin> Sample for OneShot<'d, T> {
impl<'d> Sample for OneShot<'d> {
#[rustfmt::skip]
type SampleFuture<'a> where Self: 'a = impl Future<Output = i16> + 'a;
type SampleFuture<'a, T> where Self: 'a, T: PositivePin + 'a = impl Future<Output = i16> + 'a;
fn sample<'a>(&'a mut self) -> Self::SampleFuture<'a> {
fn sample<'a, T: PositivePin>(&'a mut self, pin: &'a T) -> Self::SampleFuture<'a, T> {
async move {
let r = self.regs();
// Set positive channel
r.ch[0].pselp.write(|w| w.pselp().variant(pin.channel()));
// Set up the DMA
let mut val: i16 = 0;
r.result