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-rwxr-xr-xports/stm32/mboot/Makefile2
1 files changed, 1 insertions, 1 deletions
diff --git a/ports/stm32/mboot/Makefile b/ports/stm32/mboot/Makefile
index ad2fda3ee..0c9244259 100755
--- a/ports/stm32/mboot/Makefile
+++ b/ports/stm32/mboot/Makefile
@@ -92,7 +92,7 @@ LDFLAGS += --gc-sections
# Debugging/Optimization
ifeq ($(DEBUG), 1)
CFLAGS += -g -DPENDSV_DEBUG
-COPT = -O0
+COPT = -Og
else
COPT += -Os -DNDEBUG
endif