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‎Makefile

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# Name: Makefile
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# Project: custom-class example
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# Author: Christian Starkjohann
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# Creation Date: 2008-04-07
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# Tabsize: 4
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# Copyright: (c) 2008 by OBJECTIVE DEVELOPMENT Software GmbH
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# License: GNU GPL v2 (see License.txt), GNU GPL v3 or proprietary (CommercialLicense.txt)
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# This Revision: $Id: Makefile 692 2008-11-07 15:07:40Z cs $
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DEVICE = attiny44
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F_CPU = 12000000 # in Hz
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FUSE_L = 0xFF
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FUSE_H = 0xDF
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AVRDUDE = avrdude -c avrispmkii -P usb -p $(DEVICE) # edit this line for your programmer
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CFLAGS = -Iusbdrv -I. -DDEBUG_LEVEL=0
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OBJECTS = usbdrv/usbdrv.o usbdrv/usbdrvasm.o usbdrv/oddebug.o main.o
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COMPILE = avr-gcc -Wall -Os -DF_CPU=$(F_CPU) $(CFLAGS) -mmcu=$(DEVICE)
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##############################################################################
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# Fuse values for particular devices
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##############################################################################
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# If your device is not listed here, go to
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# http://palmavr.sourceforge.net/cgi-bin/fc.cgi
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# and choose options for external crystal clock and no clock divider
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#
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################################## ATMega8 ##################################
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# ATMega8 FUSE_L (Fuse low byte):
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# 0x9f = 1 0 0 1 1 1 1 1
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# ^ ^ \ / \--+--/
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# | | | +------- CKSEL 3..0 (external >8M crystal)
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# | | +--------------- SUT 1..0 (crystal osc, BOD enabled)
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# | +------------------ BODEN (BrownOut Detector enabled)
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# +-------------------- BODLEVEL (2.7V)
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# ATMega8 FUSE_H (Fuse high byte):
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# 0xc9 = 1 1 0 0 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 (don't preserve EEPROM over chip erase)
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# | | | +-------------- CKOPT (full output swing)
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# | | +---------------- SPIEN (allow serial programming)
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# | +------------------ WDTON (WDT not always on)
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# +-------------------- RSTDISBL (reset pin is enabled)
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#
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############################## ATMega48/88/168 ##############################
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# ATMega*8 FUSE_L (Fuse low byte):
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# 0xdf = 1 1 0 1 1 1 1 1
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# ^ ^ \ / \--+--/
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# | | | +------- CKSEL 3..0 (external >8M crystal)
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# | | +--------------- SUT 1..0 (crystal osc, BOD enabled)
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# | +------------------ CKOUT (if 0: Clock output enabled)
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# +-------------------- CKDIV8 (if 0: divide by 8)
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# ATMega*8 FUSE_H (Fuse high byte):
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# 0xde = 1 1 0 1 1 1 1 0
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# ^ ^ ^ ^ ^ \-+-/
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# | | | | | +------ BODLEVEL 0..2 (110 = 1.8 V)
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# | | | | + --------- EESAVE (preserve EEPROM over chip erase)
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# | | | +-------------- WDTON (if 0: watchdog always on)
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# | | +---------------- SPIEN (allow serial programming)
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# | +------------------ DWEN (debug wire enable)
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# +-------------------- RSTDISBL (reset pin is enabled)
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#
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############################## ATTiny25/45/85 ###############################
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# ATMega*5 FUSE_L (Fuse low byte):
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# 0xef = 1 1 1 0 1 1 1 1
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# ^ ^ \+/ \--+--/
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# | | | +------- CKSEL 3..0 (clock selection -> crystal @ 12 MHz)
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# | | +--------------- SUT 1..0 (BOD enabled, fast rising power)
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# | +------------------ CKOUT (clock output on CKOUT pin -> disabled)
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# +-------------------- CKDIV8 (divide clock by 8 -> don't divide)
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# ATMega*5 FUSE_H (Fuse high byte):
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# 0xdd = 1 1 0 1 1 1 0 1
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# ^ ^ ^ ^ ^ \-+-/
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# | | | | | +------ BODLEVEL 2..0 (brownout trigger level -> 2.7V)
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# | | | | +---------- EESAVE (preserve EEPROM on Chip Erase -> not preserved)
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# | | | +-------------- WDTON (watchdog timer always on -> disable)
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# | | +---------------- SPIEN (enable serial programming -> enabled)
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# | +------------------ DWEN (debug wire enable)
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# +-------------------- RSTDISBL (disable external reset -> enabled)
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#
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################################ ATTiny2313 #################################
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# ATTiny2313 FUSE_L (Fuse low byte):
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# 0xef = 1 1 1 0 1 1 1 1
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# ^ ^ \+/ \--+--/
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# | | | +------- CKSEL 3..0 (clock selection -> crystal @ 12 MHz)
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# | | +--------------- SUT 1..0 (BOD enabled, fast rising power)
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# | +------------------ CKOUT (clock output on CKOUT pin -> disabled)
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# +-------------------- CKDIV8 (divide clock by 8 -> don't divide)
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# ATTiny2313 FUSE_H (Fuse high byte):
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# 0xdb = 1 1 0 1 1 0 1 1
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# ^ ^ ^ ^ \-+-/ ^
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# | | | | | +---- RSTDISBL (disable external reset -> enabled)
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# | | | | +-------- BODLEVEL 2..0 (brownout trigger level -> 2.7V)
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# | | | +-------------- WDTON (watchdog timer always on -> disable)
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# | | +---------------- SPIEN (enable serial programming -> enabled)
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# | +------------------ EESAVE (preserve EEPROM on Chip Erase -> not preserved)
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# +-------------------- DWEN (debug wire enable)
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# symbolic targets:
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help:
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@echo "This Makefile has no default rule. Use one of the following:"
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@echo "make hex ....... to build main.hex"
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@echo "make program ... to flash fuses and firmware"
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@echo "make fuse ...... to flash the fuses"
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@echo "make flash ..... to flash the firmware (use this on metaboard)"
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@echo "make clean ..... to delete objects and hex file"
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hex: main.hex
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program: flash fuse
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# rule for programming fuse bits:
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fuse:
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@[ "$(FUSE_H)" != "" -a "$(FUSE_L)" != "" ] || \
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{ echo "*** Edit Makefile and choose values for FUSE_L and FUSE_H!"; exit 1; }
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$(AVRDUDE) -U hfuse:w:$(FUSE_H):m -U lfuse:w:$(FUSE_L):m
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# rule for uploading firmware:
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flash: main.hex
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$(AVRDUDE) -U flash:w:main.hex:i
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# rule for deleting dependent files (those which can be built by Make):
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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.elf *.o usbdrv/*.o main.s usbdrv/oddebug.s usbdrv/usbdrv.s
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# Generic rule for compiling C files:
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.c.o:
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$(COMPILE) -c $< -o $@
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# Generic rule for assembling Assembler source files:
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.S.o:
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$(COMPILE) -x assembler-with-cpp -c $< -o $@
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# "-x assembler-with-cpp" should not be necessary since this is the default
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# file type for the .S (with capital S) extension. However, upper case
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# characters are not always preserved on Windows. To ensure WinAVR
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# compatibility define the file type manually.
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# Generic rule for compiling C to assembler, used for debugging only.
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.c.s:
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$(COMPILE) -S $< -o $@
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# file targets:
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# Since we don't want to ship the driver multipe times, we copy it into this project:
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usbdrv:
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cp -r ../../../usbdrv .
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main.elf: usbdrv $(OBJECTS) # usbdrv dependency only needed because we copy it
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$(COMPILE) -o main.elf $(OBJECTS)
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main.hex: main.elf
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rm -f main.hex main.eep.hex
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avr-objcopy -j .text -j .data -O ihex main.elf main.hex
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avr-size main.hex
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# debugging targets:
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disasm: main.elf
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avr-objdump -d main.elf
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cpp:
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$(COMPILE) -E main.c

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