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-rw-r--r--support/make/target-config.mk3
1 files changed, 2 insertions, 1 deletions
diff --git a/support/make/target-config.mk b/support/make/target-config.mk
index 9f7ce7b..68cddbf 100644
--- a/support/make/target-config.mk
+++ b/support/make/target-config.mk
@@ -50,8 +50,9 @@ LD_SERIES_PATH := $(LD_SERIES_PATH)/stm32f2
TARGET_FLAGS += -mcpu=cortex-m3 -march=armv7-m
endif
ifeq ($(MCU_SERIES), stm32f4)
-TARGET_FLAGS += -mcpu=cortex-m4 -march=armv7e-m -mfloat-abi=hard -mfpu=fpv4-sp-d16
LD_SERIES_PATH := $(LD_SERIES_PATH)/$(MCU_F4_LINE)
+TARGET_FLAGS += -mcpu=cortex-m4 -march=armv7e-m -mfloat-abi=hard \
+ -mfpu=fpv4-sp-d16 -fsingle-precision-constant -Wdouble-promotion
endif
TARGET_LDFLAGS += -Xlinker -T$(LD_SCRIPT_PATH) \