Merge pull request #4926 from xoviat/adc

adc: allow usage of anyadcchannel for adc4

3 files changed, 5 insertions, 4 deletions

diff --git a/embassy-stm32/CHANGELOG.md b/embassy-stm32/CHANGELOG.md
index 416590f88..f4d9dcf09 100644
--- a/embassy-stm32/CHANGELOG.md
+++ b/embassy-stm32/CHANGELOG.md
@@ -7,6 +7,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## Unreleased - ReleaseDate
 
+- feat: allow use of anyadcchannel for adc4
 - fix: fix incorrect logic for buffered usart transmission complete.
 - feat: add poll_for methods to exti
 - feat: implement stop for stm32wb.
diff --git a/embassy-stm32/src/adc/mod.rs b/embassy-stm32/src/adc/mod.rs
index 74648cc21..755cb78c2 100644
--- a/embassy-stm32/src/adc/mod.rs
+++ b/embassy-stm32/src/adc/mod.rs
@@ -436,9 +436,9 @@ pub struct AnyAdcChannel<T> {
     is_differential: bool,
     _phantom: PhantomData<T>,
 }
-impl_peripheral!(AnyAdcChannel<T: Instance>);
-impl<T: Instance> AdcChannel<T> for AnyAdcChannel<T> {}
-impl<T: Instance> SealedAdcChannel<T> for AnyAdcChannel<T> {
+impl_peripheral!(AnyAdcChannel<T: AnyInstance>);
+impl<T: AnyInstance> AdcChannel<T> for AnyAdcChannel<T> {}
+impl<T: AnyInstance> SealedAdcChannel<T> for AnyAdcChannel<T> {
     fn channel(&self) -> u8 {
         self.channel
     }
diff --git a/examples/stm32u5/src/bin/adc.rs b/examples/stm32u5/src/bin/adc.rs
index ad59c0bea..4d2d93aa2 100644
--- a/examples/stm32u5/src/bin/adc.rs
+++ b/examples/stm32u5/src/bin/adc.rs
@@ -31,7 +31,7 @@ async fn main(_spawner: embassy_executor::Spawner) {
 
     // **** ADC4 init ****
     let mut adc4 = Adc::new_adc4(p.ADC4);
-    let mut adc4_pin1 = p.PC1; // A4
+    let mut adc4_pin1 = p.PC1.degrade_adc(); // A4
     let mut adc4_pin2 = p.PC0; // A5
     adc4.set_resolution_adc4(adc4::Resolution::BITS12);
     adc4.set_averaging_adc4(adc4::Averaging::Samples256);