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- TTY = /dev/tty.PL2303-00002126
- DEVICE = atmega644
- F_CPU = 20000000 # in Hz
- TARGET = main
- AVRDUDE = avrdude -c usbasp -p $(DEVICE)
- SIZE = avr-size
- CFLAGS = -Iusbdrv -I. -DDEBUG_LEVEL=0
- OBJECTS = usbdrv/usbdrv.o usbdrv/usbdrvasm.o usbdrv/oddebug.o main.o usb_bulk.o uart.o fifo.o sram.o crc.o debug.o dump.o timer.o watchdog.o
- COMPILE = avr-gcc -Wall -Os -DF_CPU=$(F_CPU) $(CFLAGS) -mmcu=$(DEVICE)
- ##############################################################################
- # Fuse values for particular devices
- ##############################################################################
- # http://www.engbedded.com/fusecalc/
- FUSE_L = 0xf7
- FUSE_H = 0xda
- # symbolic targets:
- help:
- @echo "This Makefile has no default rule. Use one of the following:"
- @echo "make hex ....... to build main.hex"
- @echo "make program ... to flash fuses and firmware"
- @echo "make fuse ...... to flash the fuses"
- @echo "make flash ..... to flash the firmware (use this on metaboard)"
- @echo "make clean ..... to delete objects and hex file"
- all: hex
- hex: main.hex
- @echo "==============================="
- @echo "$(TARGET) compiled for: $(DEVICE)"
- @echo -n "size is: "
- @$(SIZE) -A $(TARGET).hex | grep "\.sec1" | tr -s " " | cut -d" " -f2
- @echo "==============================="
- program: flash fuse
- # rule for programming fuse bits:
- fuse:
- @[ "$(FUSE_H)" != "" -a "$(FUSE_L)" != "" ] || \
- { echo "*** Edit Makefile and choose values for FUSE_L and FUSE_H!"; exit 1; }
- $(AVRDUDE) -U hfuse:w:$(FUSE_H):m -U lfuse:w:$(FUSE_L):m
- # rule for uploading firmware:
- flash: main.hex
- $(AVRDUDE) -U flash:w:main.hex:i
- # rule for deleting dependent files (those which can be built by Make):
- clean:
- 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
- # Generic rule for compiling C files:
- .c.o:
- $(COMPILE) -c $< -o $@
- # Generic rule for assembling Assembler source files:
- .S.o:
- $(COMPILE) -x assembler-with-cpp -c $< -o $@
- # "-x assembler-with-cpp" should not be necessary since this is the default
- # file type for the .S (with capital S) extension. However, upper case
- # characters are not always preserved on Windows. To ensure WinAVR
- # compatibility define the file type manually.
- # Generic rule for compiling C to assembler, used for debugging only.
- .c.s:
- $(COMPILE) -S $< -o $@
- # file targets:
- # Since we don't want to ship the driver multipe times, we copy it into this project:
- usbdrv:
- cp -r ../../../usbdrv .
- main.elf: usbdrv $(OBJECTS) # usbdrv dependency only needed because we copy it
- $(COMPILE) -o main.elf $(OBJECTS) -Wl,-u,vfprintf -lprintf_flt
- main.hex: main.elf
- rm -f main.hex main.eep.hex
- avr-objcopy -j .text -j .data -O ihex main.elf main.hex
- avr-size main.hex
- # debugging targets:
- disasm: main.elf
- avr-objdump -d main.elf
- cpp:
- $(COMPILE) -E main.c
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