Merge #368

368: Raise compile error on armv6m r=jonas-schievink a=Urhengulas Fixes #365 Co-authored-by: Urhengulas <johann.hemmann@code.berlin> Co-authored-by: Jonas Schievink <jonas.schievink@ferrous-systems.com>
knurling-rs · Feb 10, 2021 · 4cbf0b9 · 4cbf0b9
2 parents d849ad4 + 6123072
commit 4cbf0b9
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/firmware/defmt-itm/src/lib.rs b/firmware/defmt-itm/src/lib.rs
@@ -20,6 +20,9 @@ use core::{
 
 use cortex_m::{interrupt, itm, peripheral::ITM, register};
 
+#[cfg(armv6m)]
+compile_error!("`defmt-itm` cannot be used on Cortex-M0(+) chips, because it requires an ITM peripheral");
+
 static ENABLED: AtomicBool = AtomicBool::new(false);
 
 /// Enables defmt logging over the ITM stimulus port 0.