diff --git a/CMakeLists.txt b/CMakeLists.txt
index be0eab4..67906f8 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -85,7 +85,7 @@ set(TARGET_LIB_DIRECTORIES
 )
 
 # Device specific settings, goes to CFLAGS and LDFLAGS
-set(TARGET_CFLAGS_HARDWARE "-mcpu=cortex-m33 -mthumb -mfloat-abi=hard -mfpu=fpv5-sp-d16")
+set(TARGET_CFLAGS_HARDWARE "-mcpu=cortex-m4 -mthumb -mfloat-abi=hard -mfpu=fpv4-sp-d16")
 
 # Conditional flags
 # DEBUG