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| author | Matt Johnston <matt@ucc.asn.au> |
|---|---|
| date | Sat, 06 Oct 2012 23:58:37 +0800 |
| parents | b73ea78317dc |
| children |
| rev | line source |
|---|---|
| 306 | 1 # Name: Makefile |
| 2 # Author: <insert your name here> | |
| 3 # Copyright: <insert your copyright message here> | |
| 4 # License: <insert your license reference here> | |
| 5 | |
| 6 # This is a prototype Makefile. Modify it according to your needs. | |
| 7 # You should at least check the settings for | |
| 8 # DEVICE ....... The AVR device you compile for | |
| 9 # CLOCK ........ Target AVR clock rate in Hertz | |
| 10 # OBJECTS ...... The object files created from your source files. This list is | |
| 11 # usually the same as the list of source files with suffix ".o". | |
| 12 # PROGRAMMER ... Options to avrdude which define the hardware you use for | |
| 13 # uploading to the AVR and the interface where this hardware | |
| 14 # is connected. We recommend that you leave it undefined and | |
| 15 # add settings like this to your ~/.avrduderc file: | |
| 16 # default_programmer = "stk500v2" | |
| 17 # default_serial = "avrdoper" | |
| 18 # FUSES ........ Parameters for avrdude to flash the fuses appropriately. | |
| 19 | |
| 313 | 20 DEVICE = atmega328 |
| 21 PROGDEVICE = atmega328p | |
| 315 | 22 CLOCK = 2000000 |
| 306 | 23 PROGRAMMER = #-c stk500v2 -P avrdoper |
| 316 | 24 PROGRAMMER = -c stk500 -P ~/dev/stk500 -p $(PROGDEVICE) -B 2 |
| 318 | 25 SOURCE_1WIRE = onewire.c simple_ds18b20.c crc8.c |
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4ef5ce596ec6
all these optimisations make it 30% smaller
Matt Johnston <matt@ucc.asn.au>
parents:
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diff
changeset
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26 SOURCE = main.c |
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4ef5ce596ec6
all these optimisations make it 30% smaller
Matt Johnston <matt@ucc.asn.au>
parents:
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diff
changeset
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27 SOURCE += $(SOURCE_1WIRE) |
| 312 | 28 LIBS = -lm |
| 315 | 29 |
| 30 # default but 2mhz | |
| 31 FUSES = -U hfuse:w:0xd9:m -U lfuse:w:0x62:m | |
| 306 | 32 |
| 33 # ATMega8 fuse bits used above (fuse bits for other devices are different!): | |
| 34 # Example for 8 MHz internal oscillator | |
| 35 # Fuse high byte: | |
| 36 # 0xd9 = 1 1 0 1 1 0 0 1 <-- BOOTRST (boot reset vector at 0x0000) | |
| 37 # ^ ^ ^ ^ ^ ^ ^------ BOOTSZ0 | |
| 38 # | | | | | +-------- BOOTSZ1 | |
| 39 # | | | | +---------- EESAVE (set to 0 to preserve EEPROM over chip erase) | |
| 315 | 40 # | | | +-------------- WDTON |
| 306 | 41 # | | +---------------- SPIEN (if set to 1, serial programming is disabled) |
| 315 | 42 # | +------------------ DWEN |
| 306 | 43 # +-------------------- RSTDISBL (if set to 0, RESET pin is disabled) |
| 44 # Fuse low byte: | |
| 315 | 45 # 0x62 = 0 1 1 0 0 0 1 0 |
| 306 | 46 # ^ ^ \ / \--+--/ |
| 47 # | | | +------- CKSEL 3..0 (8M internal RC) | |
| 48 # | | +--------------- SUT 1..0 (slowly rising power) | |
| 315 | 49 # | +------------------ CKOUT |
| 50 # +-------------------- CLKDIV8 | |
| 306 | 51 # |
| 52 # For computing fuse byte values for other devices and options see | |
| 53 # the fuse bit calculator at http://www.engbedded.com/fusecalc/ | |
| 54 | |
| 55 | |
| 56 # Tune the lines below only if you know what you are doing: | |
| 57 | |
| 313 | 58 AVRDUDE = avrdude $(PROGRAMMER) |
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a bit more logging. make printf floats work
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parents:
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diff
changeset
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59 COMPILE = avr-gcc -Wall -Os -DF_CPU=$(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 |
| 306 | 60 |
| 61 # symbolic targets: | |
| 62 all: main.hex | |
| 63 | |
| 64 .c.o: | |
| 65 $(COMPILE) -c $< -o $@ | |
| 66 | |
| 67 .S.o: | |
| 68 $(COMPILE) -x assembler-with-cpp -c $< -o $@ | |
| 69 # "-x assembler-with-cpp" should not be necessary since this is the default | |
| 70 # file type for the .S (with capital S) extension. However, upper case | |
| 71 # characters are not always preserved on Windows. To ensure WinAVR | |
| 72 # compatibility define the file type manually. | |
| 73 | |
| 74 .c.s: | |
| 75 $(COMPILE) -S $< -o $@ | |
| 76 | |
| 77 flash: all | |
| 78 $(AVRDUDE) -U flash:w:main.hex:i | |
| 79 | |
| 319 | 80 checkprog: |
| 81 $(AVRDUDE) -v | |
| 82 | |
| 306 | 83 fuse: |
| 84 $(AVRDUDE) $(FUSES) | |
| 85 | |
| 86 # Xcode uses the Makefile targets "", "clean" and "install" | |
| 318 | 87 install: flash |
| 306 | 88 |
| 89 # if you use a bootloader, change the command below appropriately: | |
| 90 load: all | |
| 91 bootloadHID main.hex | |
| 92 | |
| 93 clean: | |
| 94 rm -f main.hex main.elf $(OBJECTS) | |
| 95 | |
| 96 # file targets: | |
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317
4ef5ce596ec6
all these optimisations make it 30% smaller
Matt Johnston <matt@ucc.asn.au>
parents:
316
diff
changeset
|
97 main.elf: $(SOURCE) |
|
4ef5ce596ec6
all these optimisations make it 30% smaller
Matt Johnston <matt@ucc.asn.au>
parents:
316
diff
changeset
|
98 $(COMPILE) -o main.elf $(SOURCE) $(LIBS) |
| 306 | 99 |
| 100 main.hex: main.elf | |
| 101 rm -f main.hex | |
| 102 avr-objcopy -j .text -j .data -O ihex main.elf main.hex | |
| 103 avr-size --format=avr --mcu=$(DEVICE) main.elf | |
| 104 # If you have an EEPROM section, you must also create a hex file for the | |
| 105 # EEPROM and add it to the "flash" target. | |
| 106 | |
| 107 # Targets for code debugging and analysis: | |
| 108 disasm: main.elf | |
| 109 avr-objdump -d main.elf | |
| 110 | |
| 111 cpp: | |
| 112 $(COMPILE) -E main.c |