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150 lignes
3.5 KiB
150 lignes
3.5 KiB
## === CPU settings ===
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# CPU type
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MCU = atmega328p
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# CPU frequency
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F_CPU = 16000000
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# Fuses
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LFUSE = 0xFF
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HFUSE = 0xDE
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EFUSE = 0x05
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## === Source files ===
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# Main C file
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MAIN = main.c
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# Extra C files in this folder
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LOCAL_SOURCE =
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# Library directory (with C files)
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EXTRA_SOURCE_DIR = lib/
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# C files in the library directory
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EXTRA_SOURCE_FILES = uart.c iopins.c stream.c adc.c dht11.c sonar.c onewire.c
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# Files that need config file - uncomment when needed, but also add the configs!
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# EXTRA_SOURCE_FILES += sipo_pwm.c
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# EXTRA_SOURCE_FILES += lcd.c
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# EXTRA_SOURCE_FILES += color.c wsrgb.c
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# EXTRA_SOURCE_FILES += debouce.c
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## === Programmer ===
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PROGRAMMER_TYPE = arduino
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PROGRAMMER_ARGS = -b 57600 -P /dev/ttyUSB0
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## === C flags ===
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CFLAGS = -std=gnu99 -mmcu=$(MCU) -DF_CPU=$(F_CPU)UL -I. -I$(EXTRA_SOURCE_DIR)
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CFLAGS += -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums
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CFLAGS += -Wall -Wno-main -Wno-strict-prototypes -Wno-comment
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CFLAGS += -g2 -Wextra -Wfatal-errors -Wno-unused-but-set-variable
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CFLAGS += -ffunction-sections -fdata-sections -Wl,--gc-sections -Wl,--relax
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# CFLAGS += -lm ## Math
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# CFLAGS += -Wl,-u,vfprintf -lprintf_flt -lm ## for floating-point printf
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# CFLAGS += -Wl,-u,vfprintf -lprintf_min ## for smaller printf
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CFLAGS_BUILD = $(CFLAGS) -Os
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# ---------------------------------------------------------------------------
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## Defined programs / locations
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CC = avr-gcc
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OBJCOPY = avr-objcopy
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OBJDUMP = avr-objdump
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AVRSIZE = avr-size
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AVRDUDE = avrdude
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## === File lists ===
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TARGET = $(strip $(basename $(MAIN)))
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SRC1 = $(TARGET).c
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SRC = $(SRC1)
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EXTRA_SOURCE = $(addprefix $(EXTRA_SOURCE_DIR), $(EXTRA_SOURCE_FILES))
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SRC += $(EXTRA_SOURCE)
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SRC += $(LOCAL_SOURCE)
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HEADERS = $(SRC:.c=.h)
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OBJ = $(SRC:.c=.o)
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## === File generation ===
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all: $(TARGET).hex size
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pre: $(TARGET).pre
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%.hex: %.elf
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$(OBJCOPY) -R .eeprom -O ihex $< $@
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%.elf: $(SRC)
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$(CC) $(CFLAGS_BUILD) $(SRC) --output $@
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%.pre: $(SRC1)
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$(CC) $(CFLAGS) -E $(SRC1) --output $@
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%.eeprom: %.elf
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$(OBJCOPY) -j .eeprom --change-section-lma .eeprom=0 -O ihex $< $@
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%.lst: %.elf
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$(OBJDUMP) -S $< > $@
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# Show debug info
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debug:
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@echo
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@echo "Source files:" $(SRC)
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@echo "MCU, F_CPU, BAUD:" $(MCU), $(F_CPU), $(BAUD)
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@echo
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# Disassemble the ELF
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disassemble: $(TARGET).lst
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dis: disassemble
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lst: disassemble
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# Make eeprom file
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eeprom: $(TARGET).eeprom
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# Show how big the resulting program is
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size: $(TARGET).elf
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$(AVRSIZE) -C --mcu=$(MCU) $(TARGET).elf
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# Clean all produced trash
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clean:
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rm -f $(TARGET).elf $(TARGET).hex $(TARGET).obj \
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$(TARGET).o $(TARGET).d $(TARGET).eep $(TARGET).lst \
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$(TARGET).lss $(TARGET).sym $(TARGET).map $(TARGET)~ \
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$(TARGET).eeprom
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# Clean all trash
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purge:
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rm -f *.elf *.hex *.obj *.o *.d *.eep *.lst *.lss *.sym *.map *~
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## === avrdude ===
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flash: $(TARGET).hex
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$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) $(PROGRAMMER_ARGS) -U flash:w:$<
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flashe: $(TARGET).eeprom
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$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) $(PROGRAMMER_ARGS) -U eeprom:w:$<
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shell:
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$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) $(PROGRAMMER_ARGS) -nt
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fser: all flash ser
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ser:
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gtkterm -p /dev/ttyUSB0
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# === fuses ===
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FUSE_STRING = -U lfuse:w:$(LFUSE):m -U hfuse:w:$(HFUSE):m -U efuse:w:$(EFUSE):m
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fuses:
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$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) \
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$(PROGRAMMER_ARGS) $(FUSE_STRING)
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show_fuses:
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$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) $(PROGRAMMER_ARGS) -nv
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set_default_fuses: FUSE_STRING = -U lfuse:w:$(LFUSE):m -U hfuse:w:$(HFUSE):m -U efuse:w:$(EFUSE):m
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set_default_fuses: fuses
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