# makefile, written by guido socher
MCU=atmega8
CC=avr-gcc
OBJCOPY=avr-objcopy
# optimize for size:
CFLAGS=-g -mmcu=$(MCU) -Wall -Wstrict-prototypes -Os -mcall-prologues
#-------------------
all: i2ctemp.hex
#
rs232test: i2c_rs232_pintest
#-------------------
help: 
	@echo "Usage: make all|help|load|load_pre|rdfuses|wrfuse1mhz"
#-------------------
i2ctemp.hex : i2ctemp_avr_main.out 
	$(OBJCOPY) -R .eeprom -O ihex i2ctemp_avr_main.out i2ctemp.hex 
i2ctemp_avr_main.out : i2ctemp_avr_main.o i2c_avr.o analog.o ntc_convert.o
	$(CC) $(CFLAGS) -o i2ctemp_avr_main.out -Wl,-Map,i2ctemp_avr_main.map i2ctemp_avr_main.o i2c_avr.o analog.o ntc_convert.o -lm
	avr-size i2ctemp_avr_main.out
#
ntc_convert.o : ntc_convert.c ntc.h 
	$(CC) $(CFLAGS) -Os -c ntc_convert.c
analog.o : analog.c analog.h avr_compat.h
	$(CC) $(CFLAGS) -Os -c analog.c
i2ctemp_avr_main.o : i2ctemp_avr_main.c i2c_avr.h avr_compat.h
	$(CC) $(CFLAGS) -Os -c i2ctemp_avr_main.c
i2c_avr.o : i2c_avr.c i2c_avr.h avr_compat.h
	$(CC) $(CFLAGS) -Os -c i2c_avr.c
# you need to erase first before loading the program.
# load (program) the software into the eeprom:
load: i2ctemp.hex
	uisp -dlpt=/dev/parport0 --erase  -dprog=dapa
	uisp -dlpt=/dev/parport0 --upload if=i2ctemp.hex -dprog=dapa  -v=3 --hash=32
# here is a pre-compiled version in case you have trouble with
# your development environment
load_pre: i2ctemp_pre.hex
	uisp -dlpt=/dev/parport0 --erase  -dprog=dapa
	uisp -dlpt=/dev/parport0 --upload if=i2ctemp_pre.hex -dprog=dapa -dno-poll -v=3 --hash=32
#-------------------
# fuse byte settings:
#  Atmel AVR ATmega8 
#  Fuse Low Byte      = 0xe1 (1MHz internal), 0xe3 (4MHz internal), 0xe4 (8MHz internal)
#  Fuse High Byte     = 0xd9 
#  Factory default is 0xe1 for low byte and 0xd9 for high byte
# Check this with make rdfuses
rdfuses:
	uisp -dlpt=/dev/parport0 -dprog=dapa --rd_fuses
	@echo " "
	@echo "Explanation: Fuse Low Byte: 0xe1 (1MHz intern), 0xe3 (4MHz intern), 0xe4 (8MHz intern)"
	@echo "             Fuse High Byte should be 0xd9"
# use internal RC oscillator 1 Mhz
wrfuse1mhz:
	uisp -dlpt=/dev/parport0 -dprog=dapa --wr_fuse_l=0xe1
#-------------------
i2c_m.o: i2c_m.h i2c_m.c
	gcc -Wall -c i2c_m.c
i2ctalk_linux.o: i2c_m.h i2ctalk_linux.c 
	gcc -Wall -c i2ctalk_linux.c
i2ctemp_linux.o: i2c_m.h i2ctemp_linux.c 
	gcc -Wall -c i2ctemp_linux.c
i2c_rs232_pintest.o: i2c_m.h i2c_rs232_pintest.c 
	gcc -Wall -c i2c_rs232_pintest.c
i2ctalk_linux: i2c_m.o i2ctalk_linux.o 
	gcc -Wall -o i2ctalk_linux i2c_m.o i2ctalk_linux.o
i2ctemp_linux: i2c_m.o i2ctemp_linux.o 
	gcc -Wall -o i2ctemp_linux i2c_m.o i2ctemp_linux.o
i2c_rs232_pintest: i2c_m.o i2c_rs232_pintest.o 
	gcc -Wall -o i2c_rs232_pintest i2c_m.o i2c_rs232_pintest.o
#-------------------
clean:
	rm -f *.o *.map *.out *p.hex i2c_rs232_pintest i2ctemp_linux i2ctalk_linux
#-------------------
