2021-01-17 15:37:57 +01:00
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PRG = feedback
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2021-01-19 19:30:35 +01:00
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PROJ_ROOT = ../..
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AVRCANLIB_PATH = $(PROJ_ROOT)/avr-can-lib
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2021-01-17 15:37:57 +01:00
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OBJ = main.o \
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$(AVRCANLIB_PATH)/src/at90can_buffer.o \
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$(AVRCANLIB_PATH)/src/at90can.o \
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$(AVRCANLIB_PATH)/src/at90can_disable_dyn_filter.o \
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$(AVRCANLIB_PATH)/src/at90can_error_register.o \
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$(AVRCANLIB_PATH)/src/at90can_get_buf_message.o \
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$(AVRCANLIB_PATH)/src/at90can_get_dyn_filter.o \
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$(AVRCANLIB_PATH)/src/at90can_get_message.o \
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$(AVRCANLIB_PATH)/src/at90can_send_buf_message.o \
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$(AVRCANLIB_PATH)/src/at90can_send_message.o \
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$(AVRCANLIB_PATH)/src/at90can_set_dyn_filter.o \
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$(AVRCANLIB_PATH)/src/at90can_set_mode.o \
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$(AVRCANLIB_PATH)/src/can_buffer.o
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# These were defined for the avr-can-lib, but they really, really
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# shouldn't be used there because they affect the whole program.
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OPTIMIZE = -Os -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums
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PROGRAMMER = usbtiny
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MCU_TARGET = atmega32m1
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DEFS = -DF_CPU=16000000UL -DHAS_CAN_CONFIG_H
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2021-01-19 19:30:35 +01:00
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INCLUDES = -I. -I$(PROJ_ROOT) -I$(AVRCANLIB_PATH)
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2021-01-17 15:37:57 +01:00
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LIBS =
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LFUSE = 0xdf
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HFUSE = 0xd9
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EFUSE = 0xfe
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EXTRA_CLEAN_FILES =
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# You should not have to change anything below here.
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CC = avr-gcc
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DUDE = avrdude
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HOST_CC = gcc
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HOST_CFLAGS = -O0 -g
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HOST_LDFLAGS =
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# Override is only needed by avr-lib build system.
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override CFLAGS = -g -Wall $(OPTIMIZE) -mmcu=$(MCU_TARGET) $(DEFS) $(INCLUDES)
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override LDFLAGS = -Wl,-Map,$(PRG).map
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DUDEFLAGS = -c $(PROGRAMMER) -p $(MCU_TARGET)
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OBJCOPY = avr-objcopy
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OBJDUMP = avr-objdump
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all: $(PRG).elf lst text eeprom
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$(PRG).elf: $(OBJ) $(LIBS)
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$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $^ $(LIBS)
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clean:
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rm -f $(OBJ) $(PRG).elf $(PRG).lst $(PRG).map $(PRG).bin $(PRG).hex $(PRG).srec $(PRG)_eeprom.bin $(PRG)_eeprom.hex $(PRG)_eeprom.srec $(EXTRA_CLEAN_FILES)
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lst: $(PRG).lst
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%.lst: %.elf
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$(OBJDUMP) -h -S $< > $@
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# Rules for flashing, EEPROM writing and fuse bit setting
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flash: $(PRG).hex $(PRG)_eeprom.hex
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$(DUDE) $(DUDEFLAGS) -U eeprom:w:$(PRG)_eeprom.hex:i -U flash:w:$(PRG).hex:i
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flashprg: $(PRG).hex
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$(DUDE) $(DUDEFLAGS) -U flash:w:$(PRG).hex:i
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flasheep: $(PRG)_eeprom.hex
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$(DUDE) $(DUDEFLAGS) -U eeprom:w:$(PRG)_eeprom.hex:i
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fuse:
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$(DUDE) $(DUDEFLAGS) -U hfuse:w:$(HFUSE):m -U lfuse:w:$(LFUSE):m -U efuse:w:$(EFUSE):m
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# Rules for building the .text rom images
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text: hex bin srec
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hex: $(PRG).hex
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bin: $(PRG).bin
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srec: $(PRG).srec
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%.hex: %.elf
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$(OBJCOPY) -j .text -j .data -O ihex $< $@
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%.srec: %.elf
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$(OBJCOPY) -j .text -j .data -O srec $< $@
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%.bin: %.elf
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$(OBJCOPY) -j .text -j .data -O binary $< $@
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# Rules for building the .eeprom rom images
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eeprom: ehex ebin esrec
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ehex: $(PRG)_eeprom.hex
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ebin: $(PRG)_eeprom.bin
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esrec: $(PRG)_eeprom.srec
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%_eeprom.hex: %.elf
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$(OBJCOPY) -j .eeprom --change-section-lma .eeprom=0 -O ihex $< $@ \
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|| { echo empty $@ not generated; exit 0; }
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%_eeprom.srec: %.elf
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$(OBJCOPY) -j .eeprom --change-section-lma .eeprom=0 -O srec $< $@ \
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|| { echo empty $@ not generated; exit 0; }
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%_eeprom.bin: %.elf
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$(OBJCOPY) -j .eeprom --change-section-lma .eeprom=0 -O binary $< $@ \
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|| { echo empty $@ not generated; exit 0; }
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