esp32c3 support

rtic-common/CHANGELOG.md

@@ -13,4 +13,8 @@ For each category, *Added*, *Changed*, *Fixed* add new entries at the top!
 
 ### Fixed
 
+## [v1.0.1]
+
+- `portable-atomic` used as a drop in replacement for `core::sync::atomic` in code and macros. `portable-atomic` imported with `default-features = false`, as we do not require CAS.
+
 ## [v1.0.0] - 2023-05-31

rtic-common/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "rtic-common"
-version = "1.0.0"
+version = "1.0.1"
 
 edition = "2021"
 authors = [
@@ -18,6 +18,7 @@ license = "MIT OR Apache-2.0"
 
 [dependencies]
 critical-section = "1"
+portable-atomic = { version = "1", default-features = false }
 
 [features]
 default = []

rtic-common/src/wait_queue.rs

@@ -3,9 +3,9 @@
 use core::marker::PhantomPinned;
 use core::pin::Pin;
 use core::ptr::null_mut;
-use core::sync::atomic::{AtomicBool, AtomicPtr, Ordering};
 use core::task::Waker;
 use critical_section as cs;
+use portable_atomic::{AtomicBool, AtomicPtr, Ordering};
 
 /// A helper definition of a wait queue.
 pub type WaitQueue = DoublyLinkedList<Waker>;