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96 lines
2.1 KiB
96 lines
2.1 KiB
2 years ago
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# https://github.com/jkent/caterina-promicro
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MCU = atmega328p
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F_CPU = 16000000
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# AVRDUDE settings
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PROG_BAUD = 57600
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PROG_DEV = /dev/ttyUSB0
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PROG_TYPE = arduino
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# Build the final AVRDUDE arguments
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PROG_ARGS = -c $(PROG_TYPE) -p $(MCU) -b $(PROG_BAUD) -P $(PROG_DEV)
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INCFLAGS += -Isrc -Ilib/libssd1306/src
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CFLAGS = -std=gnu99 -mmcu=$(MCU) -DF_CPU=$(F_CPU)UL
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CFLAGS += -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums
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CFLAGS += -Wall -Wno-main -Wno-strict-prototypes -Wno-comment
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CFLAGS += -g2 -Wextra -Wfatal-errors -Wno-unused-but-set-variable
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CFLAGS += -ffunction-sections -fdata-sections -Os -Wno-array-bounds
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LFLAGS = -Wl,--gc-sections -Wl,--relax
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#-Llib/libssd1306/bld/ -l:libssd1306.a
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# CFLAGS += -lm ## Math
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# CFLAGS += -Wl,-u,vfprintf -lprintf_flt -lm ## for floating-point printf
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# CFLAGS += -Wl,-u,vfprintf -lprintf_min ## for smaller printf
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# ---------------------------------------------------------------------------
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APP = App
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SRC_DIR = src
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BUILD_DIR = build
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## Defined programs / locations
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CC = avr-gcc
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LD = avr-gcc
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OBJCOPY = avr-objcopy
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OBJDUMP = avr-objdump
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AVRSIZE = avr-size
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AVRDUDE = avrdude
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SOURCES=$(wildcard $(SRC_DIR)/*.c)
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OBJECTS=$(SOURCES:$(SRC_DIR)/%.c=$(BUILD_DIR)/%.o)
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DEPENDS=$(BUILD_DIR)/.depends
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TARGET=$(BUILD_DIR)/$(APP)
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.PHONY: all clean eeprom size
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all: $(TARGET).hex size
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debug:
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@echo "SOURCES $(SOURCES)"
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@echo "OBJECTS $(OBJECTS)"
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@echo "TARGET $(TARGET)"
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eeprom: $(TARGET).eeprom
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size: $(TARGET).elf
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$(AVRSIZE) -C --mcu=$(MCU) $<
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$(TARGET).elf: $(OBJECTS) | $(BUILD_DIR)
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$(LD) $(CFLAGS) $(LFLAGS) -o $@ $^ lib/libssd1306/bld/libssd1306.a
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%.hex: %.elf
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$(OBJCOPY) -R .eeprom -O ihex $< $@
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%.eeprom: %.elf
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$(OBJCOPY) -j .eeprom --change-section-lma .eeprom=0 -O ihex $< $@
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$(BUILD_DIR)/%.o: $(SRC_DIR)/%.c | $(BUILD_DIR)
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$(CC) -c $(CFLAGS) $(INCFLAGS) -o $@ $<
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$(DEPENDS): $(SOURCES) | $(BUILD_DIR)
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$(CC) $(INCFLAGS) -MM $(SOURCES) | sed -e 's!^!$(BUILD_DIR)/!' >$@
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$(BUILD_DIR):
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mkdir -p $@
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clean:
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rm -rf $(BUILD_DIR)
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## === avrdude ===
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flash: $(TARGET).hex
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$(AVRDUDE) $(PROG_ARGS) -U flash:w:$<
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flashe: $(TARGET).eeprom
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$(AVRDUDE) $(PROG_ARGS) -U eeprom:w:$<
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shell:
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$(AVRDUDE) $(PROG_ARGS) -nt
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