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https://github.com/jrcutler/Tiny_IR_Repeater
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103 lines
3.5 KiB
Makefile
103 lines
3.5 KiB
Makefile
# Name: Makefile
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# Author: Justin R. Cutler <justin.r.cutler@gmail.com>
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# Copyright: Copyright 2012 Justin R. Cutler
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# License: GPL
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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. We recommend that you leave it undefined and
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# add settings like this to your ~/.avrduderc file:
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# default_programmer = "stk500v2"
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# default_serial = "avrdoper"
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# FUSES ........ Parameters for avrdude to flash the fuses appropriately.
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DEVICE = atmega8
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CLOCK = 8000000
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PROGRAMMER = #-c stk500v2 -P avrdoper
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OBJECTS = main.o
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FUSES = -U hfuse:w:0xd9:m -U lfuse:w:0x24:m
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# ATMega8 fuse bits used above (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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#
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# For computing fuse byte values for other devices and options see
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# the fuse bit calculator at http://www.engbedded.com/fusecalc/
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# Tune the lines below only if you know what you are doing:
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AVRDUDE = avrdude $(PROGRAMMER) -p $(DEVICE)
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COMPILE = avr-gcc -Wall -Os -DF_CPU=$(CLOCK) -mmcu=$(DEVICE)
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# symbolic targets:
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all: main.hex
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.c.o:
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$(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:main.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 main.hex
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clean:
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rm -f main.hex main.elf $(OBJECTS)
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# file targets:
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main.elf: $(OBJECTS)
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$(COMPILE) -o main.elf $(OBJECTS)
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main.hex: main.elf
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rm -f main.hex
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avr-objcopy -j .text -j .data -O ihex main.elf main.hex
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avr-size --format=avr --mcu=$(DEVICE) main.elf
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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: main.elf
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avr-objdump -d main.elf
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cpp:
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$(COMPILE) -E main.c
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