110 lines
4.1 KiB
Makefile
110 lines
4.1 KiB
Makefile
# Name: Makefile
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# This is a prototype Makefile. Modify it according to your needs.
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# You should at least check the settings for
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# DEVICE ....... The AVR device you compile for
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# CLOCK ........ Target AVR clock rate in Hertz
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# OBJECTS ...... The object files created from your source files. This list is
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# usually the same as the list of source files with suffix ".o".
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# PROGRAMMER ... Options to avrdude which define the hardware you use for
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# uploading to the AVR and the interface where this hardware
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# is connected.
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# FUSES ........ Parameters for avrdude to flash the fuses appropriately.
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DEVICE = at90usb162
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CLOCK = 16000000
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PROGRAMMER = -c stk500v2 -P avrdoper
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#OBJECTS = $(TARGET).o
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FUSES = -U hfuse:w:0xd9:m -U lfuse:w:0x24:m
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# ATMega8 fuse bits (fuse bits for other devices are different!):
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# Example for 8 MHz internal oscillator
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# Fuse high byte:
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# 0xd9 = 1 1 0 1 1 0 0 1 <-- BOOTRST (boot reset vector at 0x0000)
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# ^ ^ ^ ^ ^ ^ ^------ BOOTSZ0
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# | | | | | +-------- BOOTSZ1
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# | | | | +---------- EESAVE (set to 0 to preserve EEPROM over chip erase)
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# | | | +-------------- CKOPT (clock option, depends on oscillator type)
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# | | +---------------- SPIEN (if set to 1, serial programming is disabled)
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# | +------------------ WDTON (if set to 0, watchdog is always on)
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# +-------------------- RSTDISBL (if set to 0, RESET pin is disabled)
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# Fuse low byte:
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# 0x24 = 0 0 1 0 0 1 0 0
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# ^ ^ \ / \--+--/
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# | | | +------- CKSEL 3..0 (8M internal RC)
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# | | +--------------- SUT 1..0 (slowly rising power)
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# | +------------------ BODEN (if 0, brown-out detector is enabled)
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# +-------------------- BODLEVEL (if 0: 4V, if 1: 2.7V)
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# Example for 12 MHz external crystal:
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# Fuse high byte:
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# 0xc9 = 1 1 0 0 1 0 0 1 <-- BOOTRST (boot reset vector at 0x0000)
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# ^ ^ ^ ^ ^ ^ ^------ BOOTSZ0
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# | | | | | +-------- BOOTSZ1
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# | | | | +---------- EESAVE (set to 0 to preserve EEPROM over chip erase)
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# | | | +-------------- CKOPT (clock option, depends on oscillator type)
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# | | +---------------- SPIEN (if set to 1, serial programming is disabled)
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# | +------------------ WDTON (if set to 0, watchdog is always on)
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# +-------------------- RSTDISBL (if set to 0, RESET pin is disabled)
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# Fuse low byte:
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# 0x9f = 1 0 0 1 1 1 1 1
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# ^ ^ \ / \--+--/
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# | | | +------- CKSEL 3..0 (external >8M crystal)
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# | | +--------------- SUT 1..0 (crystal osc, BOD enabled)
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# | +------------------ BODEN (if 0, brown-out detector is enabled)
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# +-------------------- BODLEVEL (if 0: 4V, if 1: 2.7V)
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# Tune the lines below only if you know what you are doing:
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AVRDUDE = avrdude $(PROGRAMMER) -p $(DEVICE)
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COMPILE = avr-gcc $(CFLAGS) -Wall -std=gnu99 -funsigned-char -funsigned-bitfields -ffunction-sections -fpack-struct -fshort-enums -I. -Os -DF_CPU=$(CLOCK) -mmcu=$(DEVICE)
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# symbolic targets:
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all: $(TARGET).hex
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.c.o:
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$(COMPILE) -c $< -o $@
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.S.o:
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$(COMPILE) -x assembler-with-cpp -c $< -o $@
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# "-x assembler-with-cpp" should not be necessary since this is the default
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# file type for the .S (with capital S) extension. However, upper case
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# characters are not always preserved on Windows. To ensure WinAVR
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# compatibility define the file type manually.
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.c.s:
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$(COMPILE) -S $< -o $@
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flash: all
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$(AVRDUDE) -U flash:w:$(TARGET).hex:i
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fuse:
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$(AVRDUDE) $(FUSES)
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# Xcode uses the Makefile targets "", "clean" and "install"
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install: flash fuse
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# if you use a bootloader, change the command below appropriately:
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load: all
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bootloadHID $(TARGET).hex
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clean:
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rm -f $(TARGET).hex $(TARGET).elf $(OBJECTS)
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# file targets:
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$(TARGET).elf: $(OBJECTS)
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$(COMPILE) -o $(TARGET).elf $(OBJECTS)
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$(TARGET).hex: $(TARGET).elf
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rm -f $(TARGET).hex
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avr-objcopy -j .text -j .data -O ihex $(TARGET).elf $(TARGET).hex
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# If you have an EEPROM section, you must also create a hex file for the
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# EEPROM and add it to the "flash" target.
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# Targets for code debugging and analysis:
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disasm: $(TARGET).elf
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avr-objdump -d $(TARGET).elf
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cpp:
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$(COMPILE) -E $(TARGET).c
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