diff --git a/Makefile b/Makefile
--- a/Makefile
+++ b/Makefile
@@ -47,7 +47,8 @@ BUILD_DIR = build
 # source
 ######################################
 # C sources
-C_SOURCES =  \
+C_SOURCES =  \
+Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_adc.c \
 Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_can.c \
 Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_i2c_ex.c \
 Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_rcc_ex.c \
@@ -165,6 +166,9 @@ LDFLAGS = $(MCU) -specs=nano.specs -T$(L
 # default action: build all
 all: $(BUILD_DIR)/$(TARGET).elf $(BUILD_DIR)/$(TARGET).hex $(BUILD_DIR)/$(TARGET).bin
 
+# flash via serial wire debug 
+flash: all
+	st-flash --reset write $(BUILD_DIR)/$(TARGET).bin 0x8000000
 
 #######################################
 # build the application