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author | Matt Johnston <matt@ucc.asn.au> |
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date | Tue, 04 Mar 2014 22:12:29 +0800 |
parents | bb0c946460f3 |
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# Name: Makefile # Author: <insert your name here> # Copyright: <insert your copyright message here> # License: <insert your license reference here> # This is a prototype Makefile. Modify it according to your needs. # You should at least check the settings for # DEVICE ....... The AVR device you compile for # CLOCK ........ Target AVR clock rate in Hertz # OBJECTS ...... The object files created from your source files. This list is # usually the same as the list of source files with suffix ".o". # PROGRAMMER ... Options to avrdude which define the hardware you use for # uploading to the AVR and the interface where this hardware # is connected. We recommend that you leave it undefined and # add settings like this to your ~/.avrduderc file: # default_programmer = "stk500v2" # default_serial = "avrdoper" # FUSES ........ Parameters for avrdude to flash the fuses appropriately. DEVICE = atmega328 PROGDEVICE = atmega328p CLOCK = 2000000 PROGRAMMER = #-c stk500v2 -P avrdoper PROGRAMMER = -c stk500 -P ~/dev/stk500 -p $(PROGDEVICE) -B 2 SOURCE_1WIRE = onewire.c simple_ds18b20.c crc8.c SOURCE = main.c SOURCE += $(SOURCE_1WIRE) LIBS = -lm # default but 2mhz FUSES = -U hfuse:w:0xd9:m -U lfuse:w:0x62:m # ATMega8 fuse bits used above (fuse bits for other devices are different!): # Example for 8 MHz internal oscillator # Fuse high byte: # 0xd9 = 1 1 0 1 1 0 0 1 <-- BOOTRST (boot reset vector at 0x0000) # ^ ^ ^ ^ ^ ^ ^------ BOOTSZ0 # | | | | | +-------- BOOTSZ1 # | | | | +---------- EESAVE (set to 0 to preserve EEPROM over chip erase) # | | | +-------------- WDTON # | | +---------------- SPIEN (if set to 1, serial programming is disabled) # | +------------------ DWEN # +-------------------- RSTDISBL (if set to 0, RESET pin is disabled) # Fuse low byte: # 0x62 = 0 1 1 0 0 0 1 0 # ^ ^ \ / \--+--/ # | | | +------- CKSEL 3..0 (8M internal RC) # | | +--------------- SUT 1..0 (slowly rising power) # | +------------------ CKOUT # +-------------------- CLKDIV8 # # For computing fuse byte values for other devices and options see # the fuse bit calculator at http://www.engbedded.com/fusecalc/ # Tune the lines below only if you know what you are doing: AVRDUDE = avrdude $(PROGRAMMER) COMPILE = avr-gcc -Wall -Os -DF_CPU=$(CLOCK) -mmcu=$(DEVICE) -g -std=c99 -mcall-prologues -fdata-sections -ffunction-sections -Wl,--gc-sections -Wl,--relax --combine -fwhole-program -Wl,-u,vfprintf -lprintf_flt -lm # symbolic targets: all: main.hex .c.o: $(COMPILE) -c $< -o $@ .S.o: $(COMPILE) -x assembler-with-cpp -c $< -o $@ # "-x assembler-with-cpp" should not be necessary since this is the default # file type for the .S (with capital S) extension. However, upper case # characters are not always preserved on Windows. To ensure WinAVR # compatibility define the file type manually. .c.s: $(COMPILE) -S $< -o $@ flash: all $(AVRDUDE) -U flash:w:main.hex:i checkprog: $(AVRDUDE) -v fuse: $(AVRDUDE) $(FUSES) # Xcode uses the Makefile targets "", "clean" and "install" install: flash # if you use a bootloader, change the command below appropriately: load: all bootloadHID main.hex clean: rm -f main.hex main.elf $(OBJECTS) # file targets: main.elf: $(SOURCE) $(COMPILE) -o main.elf $(SOURCE) $(LIBS) main.hex: main.elf rm -f main.hex avr-objcopy -j .text -j .data -O ihex main.elf main.hex avr-size --format=avr --mcu=$(DEVICE) main.elf # If you have an EEPROM section, you must also create a hex file for the # EEPROM and add it to the "flash" target. # Targets for code debugging and analysis: disasm: main.elf avr-objdump -d main.elf cpp: $(COMPILE) -E main.c