Mercurial > templog
annotate Makefile @ 11:06bedbe8540d
all these optimisations make it 30% smaller
| author | Matt Johnston <matt@ucc.asn.au> |
|---|---|
| date | Sat, 19 May 2012 17:15:50 +0800 |
| parents | 1bfe28c348dd |
| children | 3c27bfbd7f3a |
| rev | line source |
|---|---|
| 0 | 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 | |
| 7 | 20 DEVICE = atmega328 |
| 21 PROGDEVICE = atmega328p | |
| 9 | 22 CLOCK = 2000000 |
| 0 | 23 PROGRAMMER = #-c stk500v2 -P avrdoper |
| 10 | 24 PROGRAMMER = -c stk500 -P ~/dev/stk500 -p $(PROGDEVICE) -B 2 |
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06bedbe8540d
all these optimisations make it 30% smaller
Matt Johnston <matt@ucc.asn.au>
parents:
10
diff
changeset
|
25 SOURCE_1WIRE = onewire.c ds18x20.c uart_addon.c crc8.c uart.c |
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06bedbe8540d
all these optimisations make it 30% smaller
Matt Johnston <matt@ucc.asn.au>
parents:
10
diff
changeset
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26 SOURCE_SD = ff.c mmc.c |
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06bedbe8540d
all these optimisations make it 30% smaller
Matt Johnston <matt@ucc.asn.au>
parents:
10
diff
changeset
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27 SOURCE = main.c |
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06bedbe8540d
all these optimisations make it 30% smaller
Matt Johnston <matt@ucc.asn.au>
parents:
10
diff
changeset
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28 SOURCE += $(SOURCE_1WIRE) |
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06bedbe8540d
all these optimisations make it 30% smaller
Matt Johnston <matt@ucc.asn.au>
parents:
10
diff
changeset
|
29 #SOURCE += $(SOURCE_SD) |
| 6 | 30 LIBS = -lm |
| 9 | 31 |
| 32 # default but 2mhz | |
| 33 FUSES = -U hfuse:w:0xd9:m -U lfuse:w:0x62:m | |
| 0 | 34 |
| 35 # ATMega8 fuse bits used above (fuse bits for other devices are different!): | |
| 36 # Example for 8 MHz internal oscillator | |
| 37 # Fuse high byte: | |
| 38 # 0xd9 = 1 1 0 1 1 0 0 1 <-- BOOTRST (boot reset vector at 0x0000) | |
| 39 # ^ ^ ^ ^ ^ ^ ^------ BOOTSZ0 | |
| 40 # | | | | | +-------- BOOTSZ1 | |
| 41 # | | | | +---------- EESAVE (set to 0 to preserve EEPROM over chip erase) | |
| 9 | 42 # | | | +-------------- WDTON |
| 0 | 43 # | | +---------------- SPIEN (if set to 1, serial programming is disabled) |
| 9 | 44 # | +------------------ DWEN |
| 0 | 45 # +-------------------- RSTDISBL (if set to 0, RESET pin is disabled) |
| 46 # Fuse low byte: | |
| 9 | 47 # 0x62 = 0 1 1 0 0 0 1 0 |
| 0 | 48 # ^ ^ \ / \--+--/ |
| 49 # | | | +------- CKSEL 3..0 (8M internal RC) | |
| 50 # | | +--------------- SUT 1..0 (slowly rising power) | |
| 9 | 51 # | +------------------ CKOUT |
| 52 # +-------------------- CLKDIV8 | |
| 0 | 53 # |
| 54 # For computing fuse byte values for other devices and options see | |
| 55 # the fuse bit calculator at http://www.engbedded.com/fusecalc/ | |
| 56 | |
| 57 | |
| 58 # Tune the lines below only if you know what you are doing: | |
| 59 | |
| 7 | 60 AVRDUDE = avrdude $(PROGRAMMER) |
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11
06bedbe8540d
all these optimisations make it 30% smaller
Matt Johnston <matt@ucc.asn.au>
parents:
10
diff
changeset
|
61 COMPILE = avr-gcc -Wall -Os -DF_CPU=$(CLOCK) -mmcu=$(DEVICE) -g -std=c99 -mcall-prologues -fdata-sections -ffunction-sections -Wl,--gc-sections -Wl,--relax --combine -fwhole-program |
| 0 | 62 |
| 63 # symbolic targets: | |
| 64 all: main.hex | |
| 65 | |
| 66 .c.o: | |
| 67 $(COMPILE) -c $< -o $@ | |
| 68 | |
| 69 .S.o: | |
| 70 $(COMPILE) -x assembler-with-cpp -c $< -o $@ | |
| 71 # "-x assembler-with-cpp" should not be necessary since this is the default | |
| 72 # file type for the .S (with capital S) extension. However, upper case | |
| 73 # characters are not always preserved on Windows. To ensure WinAVR | |
| 74 # compatibility define the file type manually. | |
| 75 | |
| 76 .c.s: | |
| 77 $(COMPILE) -S $< -o $@ | |
| 78 | |
| 79 flash: all | |
| 80 $(AVRDUDE) -U flash:w:main.hex:i | |
| 81 | |
| 82 fuse: | |
| 83 $(AVRDUDE) $(FUSES) | |
| 84 | |
| 85 # Xcode uses the Makefile targets "", "clean" and "install" | |
| 86 install: flash fuse | |
| 87 | |
| 88 # if you use a bootloader, change the command below appropriately: | |
| 89 load: all | |
| 90 bootloadHID main.hex | |
| 91 | |
| 92 clean: | |
| 93 rm -f main.hex main.elf $(OBJECTS) | |
| 94 | |
| 95 # file targets: | |
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11
06bedbe8540d
all these optimisations make it 30% smaller
Matt Johnston <matt@ucc.asn.au>
parents:
10
diff
changeset
|
96 main.elf: $(SOURCE) |
|
06bedbe8540d
all these optimisations make it 30% smaller
Matt Johnston <matt@ucc.asn.au>
parents:
10
diff
changeset
|
97 $(COMPILE) -o main.elf $(SOURCE) $(LIBS) |
| 0 | 98 |
| 99 main.hex: main.elf | |
| 100 rm -f main.hex | |
| 101 avr-objcopy -j .text -j .data -O ihex main.elf main.hex | |
| 102 avr-size --format=avr --mcu=$(DEVICE) main.elf | |
| 103 # If you have an EEPROM section, you must also create a hex file for the | |
| 104 # EEPROM and add it to the "flash" target. | |
| 105 | |
| 106 # Targets for code debugging and analysis: | |
| 107 disasm: main.elf | |
| 108 avr-objdump -d main.elf | |
| 109 | |
| 110 cpp: | |
| 111 $(COMPILE) -E main.c |