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pfowler |
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DEVICE=atmega168
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F_CPU=20000000
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HID_SIZE=44
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AVRDUDE = avrdude -c avrispmkii -P usb -p $(DEVICE)
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# The two lines above are for "avrdude" and the STK500 programmer connected
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# to an USB to serial converter to a Mac running Mac OS X.
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# Choose your favorite programmer and interface.
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COMPILE = avr-gcc -Wall -Os -Iusbdrv -I. -mmcu=$(DEVICE) -DF_CPU=$(F_CPU) -DHID_SIZE=$(HID_SIZE) -DDEBUG_LEVEL=0
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# NEVER compile the final product with debugging! Any debug output will
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# distort timing so that the specs can't be met.
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#OBJECTS = usbdrv/usbdrv.o usbdrv/usbdrvasm.o usbdrv/oddebug.o main.o
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OBJECTS = usbdrv/usbdrv.o usbdrv/usbdrvasm.o main.o
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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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$(AVRDUDE) -U hfuse:w:0xdf:m -U lfuse:w:0xff:m
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fusedef:
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$(AVRDUDE) -U hfuse:w:0xdf:m -U lfuse:w:0x62:m
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readcal:
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$(AVRDUDE) -U calibration:r:/dev/stdout:i | head -1
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clean:
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rm -f main.hex main.lst main.obj main.cof main.list main.map main.eep.hex main.bin *.o usbdrv/*.o main.s usbdrv/oddebug.s usbdrv/usbdrv.s usbtest
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# file targets:
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main.bin: $(OBJECTS)
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$(COMPILE) -o main.bin $(OBJECTS)
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main.hex: main.bin
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rm -f main.hex main.eep.hex
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avr-objcopy -j .text -j .data -O ihex main.bin main.hex
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./checksize main.bin 4096 256
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# do the checksize script as our last action to allow successful compilation
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# on Windows with WinAVR where the Unix commands will fail.
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disasm: main.bin
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avr-objdump -d main.bin
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cpp:
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$(COMPILE) -E main.c
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# Command-line client
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CMDLINE = usbtest
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# One-liner to compile the command-line client from usbtest.c
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$(CMDLINE): usbtest.c
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gcc -I ./libusb/include -L ./libusb/lib/gcc -O -Wall usbtest.c -o usbtest -lusb
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