export CC = avr-gcc
  
  export MCU = atmega328p
  export TARGET_ARCH = -mmcu=$(MCU)
  
  export CFLAGS =  -Wall -I. -DF_CPU=16000000 -Os #-pedantic -std=c99#-g
  export LDFLAGS = -g $(TARGET_ARCH) -lm -Wl,--gc-sections #	-Os
  

  TARGET = main
  TERM0 = /dev/ttyPR0
  TERM1 = /dev/ttyPR1

  CPPFLAGS = -mmcu=$(MCU)
  #PGMER = -c stk500v1 -b 57600 -P $(TERM)

  #Dans le cas de l'upload par USB (selon le port)
  PGMERISP0 = -c stk500v1 -b 115200 -P $(TERM0)
  PGMERISP1 = -c stk500v1 -b 115200 -P $(TERM1)

  ARVDUDECONF= -C /etc/avrdude.conf

  export DUDE = /usr/bin/avrdude -F -v -p $(MCU) $(AVRDUDECONF)

  #Dans le cas de l'upload par SPI depuis la raspberry
  PGMERISP_RPI = -c pi_3
  ARVDUDECONF_RPI = -C ~/avrdude_gpio.conf

  export DUDE_RPI = /usr/bin/avrdude -F -v -p $(MCU) $(AVRDUDECONF_RPI)

  C_SRC = $(wildcard *.c)
  OBJS = $(C_SRC:.c=.o)
  

  all: $(TARGET).hex

  
  clean:

  	rm -f *.o *.hex *.elf

  %.o:%.c
  	$(CC) -c $< $(CPPFLAGS) $(CFLAGS)

  
  $(TARGET).elf: $(OBJS)

  	$(CC) -o $@ $^ $(LDFLAGS)

  
  $(TARGET).hex: $(TARGET).elf
  	avr-objcopy -j .text -j .data -O ihex $(TARGET).elf $(TARGET).hex
  	avr-objcopy -j .eeprom --set-section-flags=.eeprom="alloc,load" --change-section-lma .eeprom=0 -O ihex $(TARGET).elf eeprom.hex
  

  #UPLOAD CONDITIONNEL
  FOLDER = $(notdir $(CURDIR))
  
  upload: $(TARGET).hex
  #CAPTEUR 1 connecté en USB
  ifeq ($(FOLDER), capteur1-0)
  
  	stty -F $(TERM0) hupcl # reset
  	#	$(DUDE) $(PGMER) -U flash:w:$(TARGET).hex
  	$(DUDE) $(PGMERISP0) -U flash:w:$(TARGET).hex
  endif
  
  #CAPTEUR 1 connecté en SPI
  ifeq ($(FOLDER), capteur1-1)
  
  	stty -F $(TERM0) hupcl # reset
  	#	$(DUDE) $(PGMER) -U flash:w:$(TARGET).hex
  	$(DUDE_RPI) $(PGMERISP_RPI) -U flash:w:$(TARGET).hex
  endif
  
  #CAPTEUR 2 connecté en USB
  ifeq ($(FOLDER), capteur2-0)
  
  	stty -F $(TERM1) hupcl # reset
  	#	$(DUDE) $(PGMER) -U flash:w:$(TARGET).hex
  	$(DUDE) $(PGMERISP1) -U flash:w:$(TARGET).hex
  endif
  
  #CAPTEUR 2 connecté en SPI
  ifeq ($(FOLDER), capteur2-1)
  
  	stty -F $(TERM1) hupcl # reset
  	#	$(DUDE) $(PGMER) -U flash:w:$(TARGET).hex
  	$(DUDE_RPI) $(PGMERISP_RPI) -U flash:w:$(TARGET).hex
  endif
  
  size: $(TARGET).elf
  	avr-size --format=avr --mcu=$(MCU) $(TARGET).elf