Merge branch 'main' of github.com:embassy-rs/embassy into opamp

ci.sh

@@ -201,8 +201,6 @@ cargo batch  \
     $BUILD_EXTRA
 
 
-rm out/tests/stm32wb55rg/wpan_mac
-rm out/tests/stm32wb55rg/wpan_ble
 
 if [[ -z "${TELEPROBE_TOKEN-}" ]]; then
     echo No teleprobe token found, skipping running HIL tests

embassy-stm32/src/rcc/bd.rs

@@ -88,6 +88,8 @@ impl BackupDomain {
     ))]
     #[allow(dead_code, unused_variables)]
     pub fn configure_ls(clock_source: RtcClockSource, lsi: bool, lse: Option<LseDrive>) {
+        use atomic_polyfill::{compiler_fence, Ordering};
+
         match clock_source {
             RtcClockSource::LSI => assert!(lsi),
             RtcClockSource::LSE => assert!(&lse.is_some()),
@@ -173,5 +175,7 @@ impl BackupDomain {
         }
 
         trace!("BDCR configured: {:08x}", Self::read().0);
+
+        compiler_fence(Ordering::SeqCst);
     }
 }