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