You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
137 lines
3.1 KiB
137 lines
3.1 KiB
## === CPU settings ===
|
|
# CPU type
|
|
MCU = atmega328p
|
|
# CPU frequency
|
|
F_CPU = 16000000
|
|
# Fuses
|
|
LFUSE = 0xFF
|
|
HFUSE = 0xDE
|
|
EFUSE = 0x05
|
|
|
|
|
|
## === Source files ===
|
|
# Main C file
|
|
MAIN = lcd_test.c
|
|
# Extra C files in this folder
|
|
LOCAL_SOURCE =
|
|
|
|
# Library directory (with C files)
|
|
EXTRA_SOURCE_DIR = lib/
|
|
# C files in the library directory
|
|
EXTRA_SOURCE_FILES = uart.c lcd.c
|
|
|
|
|
|
## === Programmer ===
|
|
PROGRAMMER_TYPE = arduino
|
|
PROGRAMMER_ARGS = -b 57600 -P /dev/ttyUSB0
|
|
|
|
|
|
## === C flags ===
|
|
|
|
CFLAGS = -std=gnu99 -mmcu=$(MCU) -DF_CPU=$(F_CPU)UL -I. -I$(EXTRA_SOURCE_DIR)
|
|
CFLAGS += -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums
|
|
CFLAGS += -Wall -Wno-main -Wno-strict-prototypes -Wno-comment
|
|
CFLAGS += -g2 -Wextra -Wfatal-errors -Wno-unused-but-set-variable
|
|
CFLAGS += -ffunction-sections -fdata-sections -Wl,--gc-sections -Wl,--relax
|
|
# CFLAGS += -lm ## Math
|
|
# CFLAGS += -Wl,-u,vfprintf -lprintf_flt -lm ## for floating-point printf
|
|
# CFLAGS += -Wl,-u,vfprintf -lprintf_min ## for smaller printf
|
|
CFLAGS_BUILD = $(CFLAGS) -Os
|
|
|
|
|
|
# ---------------------------------------------------------------------------
|
|
|
|
## Defined programs / locations
|
|
CC = avr-gcc
|
|
OBJCOPY = avr-objcopy
|
|
OBJDUMP = avr-objdump
|
|
AVRSIZE = avr-size
|
|
AVRDUDE = avrdude
|
|
|
|
## === File lists ===
|
|
TARGET = $(strip $(basename $(MAIN)))
|
|
SRC1 = $(TARGET).c
|
|
SRC = $(SRC1)
|
|
EXTRA_SOURCE = $(addprefix $(EXTRA_SOURCE_DIR), $(EXTRA_SOURCE_FILES))
|
|
SRC += $(EXTRA_SOURCE)
|
|
SRC += $(LOCAL_SOURCE)
|
|
|
|
HEADERS = $(SRC:.c=.h)
|
|
OBJ = $(SRC:.c=.o)
|
|
|
|
|
|
## === File generation ===
|
|
all: $(TARGET).hex size
|
|
pre: $(TARGET).pre
|
|
|
|
%.hex: %.elf
|
|
$(OBJCOPY) -R .eeprom -O ihex $< $@
|
|
|
|
%.elf: $(SRC)
|
|
$(CC) $(CFLAGS_BUILD) $(SRC) --output $@
|
|
|
|
%.pre: $(SRC1)
|
|
$(CC) $(CFLAGS) -E $(SRC1) --output $@
|
|
|
|
%.eeprom: %.elf
|
|
$(OBJCOPY) -j .eeprom --change-section-lma .eeprom=0 -O ihex $< $@
|
|
|
|
%.lst: %.elf
|
|
$(OBJDUMP) -S $< > $@
|
|
|
|
# Show debug info
|
|
debug:
|
|
@echo
|
|
@echo "Source files:" $(SRC)
|
|
@echo "MCU, F_CPU, BAUD:" $(MCU), $(F_CPU), $(BAUD)
|
|
@echo
|
|
|
|
|
|
# Disassemble the ELF
|
|
disassemble: $(TARGET).lst
|
|
dis: disassemble
|
|
lst: disassemble
|
|
|
|
# Make eeprom file
|
|
eeprom: $(TARGET).eeprom
|
|
|
|
# Show how big the resulting program is
|
|
size: $(TARGET).elf
|
|
$(AVRSIZE) -C --mcu=$(MCU) $(TARGET).elf
|
|
|
|
# Clean all produced trash
|
|
clean:
|
|
rm -f $(TARGET).elf $(TARGET).hex $(TARGET).obj \
|
|
$(TARGET).o $(TARGET).d $(TARGET).eep $(TARGET).lst \
|
|
$(TARGET).lss $(TARGET).sym $(TARGET).map $(TARGET)~ \
|
|
$(TARGET).eeprom
|
|
|
|
# Clean all trash
|
|
purge:
|
|
rm -f *.elf *.hex *.obj *.o *.d *.eep *.lst *.lss *.sym *.map *~
|
|
|
|
|
|
## === avrdude ===
|
|
|
|
flash: $(TARGET).hex
|
|
$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) $(PROGRAMMER_ARGS) -U flash:w:$<
|
|
|
|
flashe: $(TARGET).eeprom
|
|
$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) $(PROGRAMMER_ARGS) -U eeprom:w:$<
|
|
|
|
shell:
|
|
$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) $(PROGRAMMER_ARGS) -nt
|
|
|
|
|
|
# === fuses ===
|
|
|
|
FUSE_STRING = -U lfuse:w:$(LFUSE):m -U hfuse:w:$(HFUSE):m -U efuse:w:$(EFUSE):m
|
|
|
|
fuses:
|
|
$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) \
|
|
$(PROGRAMMER_ARGS) $(FUSE_STRING)
|
|
show_fuses:
|
|
$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) $(PROGRAMMER_ARGS) -nv
|
|
|
|
set_default_fuses: FUSE_STRING = -U lfuse:w:$(LFUSE):m -U hfuse:w:$(HFUSE):m -U efuse:w:$(EFUSE):m
|
|
set_default_fuses: fuses
|
|
|