108 lines
3.5 KiB
Makefile
108 lines
3.5 KiB
Makefile
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TTY = /dev/tty.PL2303-00002126
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DEVICE = atmega644
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F_CPU = 20000000 # in Hz
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FUSE_L = 0xf7
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FUSE_H = 0xd9
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AVRDUDE = avrdude -c usbasp -p $(DEVICE)
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CFLAGS = -Iusbdrv -I. -DDEBUG_LEVEL=0
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#-std=gnu99
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OBJECTS = usbdrv/usbdrv.o usbdrv/usbdrvasm.o usbdrv/oddebug.o main.o usb_bulk.o uart.o fifo.o sram.o crc.o debug.o dump.o timer.o watchdog.o
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COMPILE = avr-gcc -Wall -Os -DF_CPU=$(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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################################## ATMega644 ##################################
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# ATMega644 FUSE_L (Fuse low byte):
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# 0xf7 = 1 1 1 1 0 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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# ATMega644 FUSE_H (Fuse high byte):
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# 0xd9 = 1 1 0 1 1 0 0 1
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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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# 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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all: hex
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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 $(OBJECTS) -Wl,-u,vfprintf -lprintf_flt
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main.hex: main.elf
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rm -f main.hex main.eep.hex
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avr-objcopy -j .text -j .data -O ihex main.elf main.hex
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avr-size main.hex
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# debugging targets:
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disasm: main.elf
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avr-objdump -d main.elf
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cpp:
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$(COMPILE) -E main.c
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