Makefil

## Makefile for Atmel AVR programs and associated utilities
## Copyleft (!C) Mark A. Post, 2007

# Target environment
FREQUENCY=14745600
#FREQUENCY=1843200
#FREQUENCY=8000000
#FREQUENCY=1000000
BAUDRATE=115200
#BAUDRATE=9600
MCU=atmega644p
#MCU=atmega1281
#MCU=atmega168
#MCU=attiny461
#MCU=attiny2313
PROG_METHOD=avrispmkII
#PROG_METHOD=stk500v2
PORT=usb
#PORT=/dev/ttyUSB1

# Development environment
CC=avr-gcc
DEVCC=gcc
OBJCOPY=avr-objcopy
STRIP=avr-strip
PROG=avrdude
OBJDUMP=avr-objdump
AR=avr-ar

# Build options
CDEFINES=-DF_CPU=$(FREQUENCY) -DBAUD=$(BAUDRATE)
#for <4MHz MCU, OPTS=-B 4, reliable at -B 10 for USB
ifeq ($(PORT),usb)
    OPTS=-B 10
else
    OPTS=-B 2
endif
#for optimization: CFLAGS=-mmcu=$(MCU) -Wall -Os -mcall-prologues
#WARNING: any optimization levels above -O0 may cause instability
CFLAGS=-mmcu=$(MCU) -Wall $(CDEFINES) -O0 -Iyaml-0.1.4/include
#for i686 and x86_64 in Gentoo Linux:
LDFLAGS=-L. -lm -lc -lm -luavr -L/usr/i686-pc-linux-gnu/avr/lib -L/usr/x86_64-pc-linux-gnu/avr/lib

# Libraries
LIBS=libuavr.a
LIBSRCS=\
    lib/general.c\
    lib/interrupt.c\
    lib/timer.c\
    lib/serial.c\
    lib/spi.c\
    lib/i2c.c\
    lib/adc.c\
    lib/eeprom.c\
    lib/motor.c\
    lib/terminal.c\
    $(NULL)
LIBOBJS=$(LIBSRCS:.c=.o)

YAML=libyaml.a
YAMLSRCS=yaml-0.1.4/src/yaml_private.h \
    yaml-0.1.4/src/api.c\
    yaml-0.1.4/src/reader.c\
    yaml-0.1.4/src/scanner.c\
    yaml-0.1.4/src/parser.c\
    yaml-0.1.4/src/loader.c writer.c\
    yaml-0.1.4/src/emitter.c\
    yaml-0.1.4/src/dumper.c\
    $(NULL)
YAMLOBJS=$(YAMLSRCS:.c=.o)

# Rules
%: %.hex

%.o: %.c
    $(CC) -c $^ -o $@ $(CFLAGS)

%.bin: %.o $(LIBS)
    $(CC) $^ -o $@ $(CFLAGS) $(LDFLAGS)

%.asm: %.bin
    $(OBJDUMP) -S -d $^ > $@

%-stripped: %.bin
    $(STRIP) $^ -o $@

%.srec: %-stripped
    $(OBJCOPY) -O srec $^ $@

%.hex: %-stripped
    $(OBJCOPY) -O ihex $^ $@

# Targets
default: getd sendd

getd: getd.c
    $(DEVCC) -o getd getd.c
sendd: sendd.c
    $(DEVCC) -o sendd sendd.c

libs: $(LIBS)

libuavr.a: $(LIBOBJS)
    $(AR) rcs $@ $?
libyaml.a: $(YAMLOBJS)
    $(AR) rcs $@ $?

clean:
    rm -f *.srec *.o *.bin *.asm $(LIBOBJS) $(LIBS)

erase:
#   $(UISP) -dprog=$(PROG_METHOD) -dpart=$(MCU) --segment=flash -dserial=$(PORT) -dspeed=115200 --erase
    $(PROG) -p $(MCU) -c $(PROG_METHOD) -P $(PORT) $(OPTS) -e

program_%: %.srec
#   $(UISP) -dprog=$(PROG_METHOD) -dpart=$(MCU) --segment=flash -dserial=$(PORT) -dspeed=115200 --upload if=$^
    $(PROG) -p $(MCU) -c $(PROG_METHOD) -P $(PORT) $(OPTS) -U flash:w:$^:s

verify_%: %.srec
#   $(UISP) -dprog=$(PROG_METHOD) -dpart=$(MCU) --segment=flash -dserial=$(PORT) -dspeed=115200 --verify if=$^
    $(PROG) -p $(MCU) -c $(PROG_METHOD) -P $(PORT) $(OPTS) -U flash:v:$^:s

download_%: %.srec
#   $(UISP) -dprog=$(PROG_METHOD) -dpart=$(MCU) --segment=flash -dserial=$(PORT) -dspeed=115200 --download of=$^
    $(PROG) -p $(MCU) -c $(PROG_METHOD) -P $(PORT) $(OPTS) -U flash:r:$^:s

# Fuses:
fuse-nojtag:
    #ATMega Fuses: turn off JTAG on hfuse
    $(PROG) -p $(MCU) -c $(PROG_METHOD) -P $(PORT) $(OPTS) -U hfuse:w:0xD9:m

fuse-intclk1:
    #ATMega Fuses: set to internal 8MHz/8 oscillator on lfuse
    $(PROG) -p $(MCU) -c $(PROG_METHOD) -P $(PORT) $(OPTS) -U lfuse:w:0x62:m

fuse-intclk8:
    #ATMega Fuses: set to internal 8MHz/1 oscillator on lfuse
    $(PROG) -p $(MCU) -c $(PROG_METHOD) -P $(PORT) $(OPTS) -U lfuse:w:0xE2:m

fuse-extclkd:
    #ATMega Fuses: set to external 8-16MHz/8 crystal oscillator on lfuse
    $(PROG) -p $(MCU) -c $(PROG_METHOD) -P $(PORT) $(OPTS) -U lfuse:w:0x6E:m

fuse-extclk1:
    #ATMega Fuses: set to external 1-8MHz/1 crystal oscillator on lfuse
    $(PROG) -p $(MCU) -c $(PROG_METHOD) -P $(PORT) $(OPTS) -U lfuse:w:0xEC:m

fuse-extclk8:
    #ATMega Fuses: set to external 8-16MHz/1 crystal oscillator on lfuse
    $(PROG) -p $(MCU) -c $(PROG_METHOD) -P $(PORT) $(OPTS) -U lfuse:w:0xEE:m

fuse-extclkfs:
    #ATMega Fuses: set to external full-swing crystal oscillator on lfuse
    $(PROG) -p $(MCU) -c $(PROG_METHOD) -P $(PORT) $(OPTS) -U lfuse:w:0xF7:m

fuse-extclkfsd:
    #ATMega Fuses: set to external full-swing crystal oscillator/8 on lfuse
    $(PROG) -p $(MCU) -c $(PROG_METHOD) -P $(PORT) $(OPTS) -U lfuse:w:0x77:m

fuses: fuse-nojtag fuse-extclkfs

status:
    #Verbose output to test connection and fuses
    $(PROG) -p $(MCU) -c $(PROG_METHOD) -P $(PORT) $(OPTS) -v

printm:
    $(CC) -dM -E - < /dev/null