Changed to the remmaped version of the USART1 module.

Makefile

@@ -95,7 +95,7 @@ TARGET_FILES+=$(HAL_PATH)/src/stm32f1xx_hal.c
 
 TARGET_FILES+=$(USART_PATH)/src/usart3.c
 TARGET_FILES+=$(USART_PATH)/src/usart2.c
-TARGET_FILES+=$(USART_PATH)/src/usart1.c
+TARGET_FILES+=$(USART_PATH)/src/usart1_remap.c
 
 DARWIN_OBJS_TMP = $(notdir $(TARGET_FILES:.c=.o))
 DARWIN_OBJS = $(patsubst %,$(BUILD_PATH)/%,$(DARWIN_OBJS_TMP))