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-rw-r--r--src/drivers/stm32/adc/module.mk2
-rw-r--r--src/drivers/stm32/module.mk2
-rw-r--r--src/drivers/stm32/tone_alarm/module.mk2
3 files changed, 6 insertions, 0 deletions
diff --git a/src/drivers/stm32/adc/module.mk b/src/drivers/stm32/adc/module.mk
index 48620feea..38ea490a0 100644
--- a/src/drivers/stm32/adc/module.mk
+++ b/src/drivers/stm32/adc/module.mk
@@ -40,3 +40,5 @@ MODULE_COMMAND = adc
SRCS = adc.cpp
INCLUDE_DIRS += $(NUTTX_SRC)/arch/arm/src/stm32 $(NUTTX_SRC)/arch/arm/src/common
+
+MAXOPTIMIZATION = -Os
diff --git a/src/drivers/stm32/module.mk b/src/drivers/stm32/module.mk
index bb751c7f6..54428e270 100644
--- a/src/drivers/stm32/module.mk
+++ b/src/drivers/stm32/module.mk
@@ -41,3 +41,5 @@ SRCS = drv_hrt.c \
drv_pwm_servo.c
INCLUDE_DIRS += $(NUTTX_SRC)/arch/arm/src/stm32 $(NUTTX_SRC)/arch/arm/src/common
+
+MAXOPTIMIZATION = -Os
diff --git a/src/drivers/stm32/tone_alarm/module.mk b/src/drivers/stm32/tone_alarm/module.mk
index 827cf30b2..25a194ef6 100644
--- a/src/drivers/stm32/tone_alarm/module.mk
+++ b/src/drivers/stm32/tone_alarm/module.mk
@@ -40,3 +40,5 @@ MODULE_COMMAND = tone_alarm
SRCS = tone_alarm.cpp
INCLUDE_DIRS += $(NUTTX_SRC)/arch/arm/src/stm32 $(NUTTX_SRC)/arch/arm/src/common
+
+MAXOPTIMIZATION = -Os